CN104879977A - Tempering storage device - Google Patents

Abstract

The invention provides a temperature-controlled storage device, which adopts a structure that an air outlet (8) for cold air and an air inlet (9) for returning air in a containing space to a refrigerator (2) are arranged at diagonal positions, and the cold air blown out from the air outlet (8) is sucked into the air inlet (9) after passing through a contained object (alpha). Thus, even if an inexpensive forced ventilation system is adopted, the contents can be uniformly cooled to a desired temperature in a short time. By laying a plate material (12) on the upper surface of a T-shaped rail (11), a cold air guide passage (10) for guiding cold air from the front end to the rear end of a floor can be obtained, and the implementation cost of a refrigerated container in which an air outlet and an air inlet are arranged at diagonal positions can be suppressed. The air direction control unit (13) and the louver (17) for controlling the blowing direction of the cool air are provided at the suction port (9), so that uneven cooling of the stored articles can be suppressed. In addition, the bypass of the cold air can be prevented by the shielding curtain (18).

Description

Tempering storage device

technical field

The present invention relates to a temperature-adjusted storage device for adjusting contents stored in a storage space in a housing to a desired temperature, and relates to a technology suitable for precooling of agricultural products and the like, for example.

Background technique

Refrigerators, freezers, and temperature storage devices are known as temperature-adjusted storage devices for adjusting contents stored in a storage space in a housing to a desired temperature. In each of the above devices, it takes time to adjust the contents stored in the storage space to a desired temperature.

A specific example of the prior art will be described using precooling of agricultural products (vegetables, fruits).

Agricultural products are pre-cooled before shipment. As a typical precooling method, a forced ventilation system, a differential pressure ventilation system, and a vacuum cooling system are known (see Patent Document 1 or Patent Document 2).

(i) The forced ventilation method is a method of blowing cold air from a refrigerator into the storage space to cool the contents (for example, cardboard boxes containing agricultural products, etc.) stored in the storage space.

(ii) The differential pressure ventilation method is a method in which ventilation holes are provided in each cardboard box containing agricultural products, all the cardboard boxes are arranged and stacked so that the ventilation holes are consistent, and the cardboard is covered with a cover cloth. Above the box, a differential pressure is generated inside and outside the cover cloth, and the cold air generated by the differential pressure is ventilated into each cardboard box.

(iii) The vacuum cooling method is a method of reducing the pressure of the storage space to about 5 mmHg, promoting the evaporation of water from the agricultural products, and cooling by utilizing the latent heat of evaporation generated by the evaporation of water.

However, the above-mentioned forced ventilation method, differential pressure ventilation method, and vacuum cooling method have the following problems.

(i) For the forced ventilation method, the advantage is that it is the cheapest among the above three methods, but on the contrary, since the forced ventilation method is a method of blowing cold air into the storage space to cool the contents, it is cooled to the predetermined It takes a long time for the cold normal temperature, ie, 0-10°C.

In addition, the cold air blown out from the air outlet is difficult to circulate due to the contents loaded in the storage space, and the temperature unevenness easily occurs in the storage space, and the agricultural products tend to produce uneven cooling.

As a specific example, when a large amount of content is loaded into a refrigerated container using a short container (sea container and vehicle-mounted container), in order to cool the content down to, for example, 5°C, a place where cooling is difficult A cooling time of more than one day is required (see graph A of FIG. 4 ).

In addition, in the case of precooling the harvested agricultural products using a precooling device in which the cold air blowing outlet and the suction inlet are arranged at opposing positions in the storage space, it is desired to cool the core temperature of the agricultural products to a desired temperature as quickly as possible. within range.

However, since agricultural products freeze if the temperature is lower than 0°C, it is not possible to reduce the blowing temperature of the cold air to below 0°C.

Therefore, even if precooling is started, the refrigerator can only be operated at the maximum capacity in a short time (refer to the period B in Fig. 14(b)) until the blowing temperature (refer to the solid line A in Fig. Cooling mode of operation.

Therefore, after the outlet temperature reaches 0° C. (after the period B in FIG. 14( b )), the capacity control mode in which the capacity of the refrigerating machine is limited, as shown by the solid line C in FIG. 14 ( b ), produces agricultural products Cooling the core temperature to the desired temperature range requires a longer cooling time.

In addition, the moisture content of harvested agricultural products is high (for example, 80 to 90%, etc.). Therefore, when pre-cooling is performed, the agricultural products are exposed to cold wind, which promotes the evaporation of moisture from the agricultural products. Then, the air with high humidity passes through the refrigerant evaporator, and the refrigerant evaporator is prone to frosting (frosting).

Specifically, the temperature of the air blown into the storage space is set according to the requirement to cool the core temperature of the agricultural product to the desired temperature range as quickly as possible and the fact that the agricultural product freezes if the temperature is lower than 0°C. Around 0°C. Therefore, in the precooling process, the temperature of the refrigerant evaporator (evaporator temperature) is set to a temperature lower than 0°C.

In this way, moisture evaporates from agricultural products and enters the air, and the air containing moisture passes through the refrigerant evaporator whose temperature is lower than 0°C, resulting in frost formation on the refrigerant evaporator.

When precooling is performed, the refrigerant evaporator is frosted, so it is necessary to perform defrosting (defrosting) periodically or when frosting is detected (defrosting).

During the defrosting period, when the evaporator fan is operated, the air heated during the defrosting process is blown out into the storage space (see position β of the arrow in FIG. 16( b )). Therefore, after the defrosting is completed, an extra cooling time is required to cool the warm air blown into the storage space again, and the pre-cooling time becomes longer.

In order to avoid the aforementioned inconvenience, it is considered to stop the evaporator fan during defrosting.

However, the period in which the evaporator fan is stopped is a period in which the storage space is not cooled, and therefore the entire defrosting period becomes an important factor in extending the precooling time.

(ii) For the differential pressure ventilation method, in order to cool in a short time, it is necessary to arrange and stack all the cardboard boxes so that the vent holes are consistent. If the vent holes are not consistent, there will be no difference in the cardboard box. pressure, the cold air will not pass through. Therefore, reliability is a concern, and poor cooling may occur.

In addition, there is a problem that it takes a lot of time for stacking, such as the work of aligning and stacking the vent holes, and the work of covering them with a cover cloth.

(iii) Although the vacuum cooling method can reliably perform cooling in a short time, since the vacuum suction is performed, the box needs to have a certain strength, and the equipment cost becomes high.

In addition, in the vacuum cooling method, it is necessary to separately arrange a cold storage for maintaining the temperature of the once-cooled coolant at a low temperature. Therefore, the vacuum cooling method leads to a significant increase in cost.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2000-154957

Patent Document 2: Japanese Patent Laid-Open No. 2005-291602

Contents of the invention

The present invention was made in view of the above-mentioned problems, and an object of the present invention is to provide a temperature-regulated storage device capable of uniformly regulating the contents to a desired temperature in a short time using an inexpensive forced ventilation method. , or the temperature-adjusted storage device can suppress the influence of defrosting of the refrigerant evaporator and shorten the cooling time of the contents.

In the first aspect of the present invention, in the temperature-regulated storage device, the blower port for blowing the air-conditioning wind generated by the refrigerator to the storage space and the suction port for returning the air in the storage space to the refrigerator are provided on opposite sides of the storage space. location.

As a result, the air-conditioning wind blown out from the air outlet passes through the contents stored in the storage space and sucked through the suction port, so that all the contents can be uniformly adjusted to a desired temperature in a short time. That is, the temperature-adjusted storage device of the present invention can uniformly adjust the contents to a desired temperature in a short time even by using an inexpensive forced ventilation system.

In the second aspect of the present invention, the temperature-regulated storage device is provided with a forward-reverse switching unit that alternately switches between a forward rotation operation and a reverse rotation operation,

During the forward rotation operation, the air-conditioning air is blown out from the outlet to the storage space, and the air in the storage space is sucked in from the suction port,

In the reversing operation, the air-conditioning air is blown out from the suction port into the storage space, and the air in the storage space is sucked in from the blower port.

By alternately implementing the forward rotation operation of imparting temperature-regulating air to the contents from the side close to the air outlet and the reverse operation of imparting temperature-regulating air to the contents from the side near the suction port, it is possible to store and store items in a short time. A wide range of contents in the space is uniformly adjusted to the desired temperature. That is, the temperature-adjusted storage device of the present invention can uniformly adjust the contents to a desired temperature in a short period of time by using forced ventilation.

In the third aspect of the present invention, when the temperature-regulated storage device is defrosting, the temperature of the refrigerant evaporator detected by the evaporator temperature sensor is lower than the preset fixed temperature or the contents stored in the storage space In the case of the temperature of the refrigerant, the air that has passed through the refrigerant evaporator is blown into the storage space.

Thereby, since there is provided a period during which cold air is blown into the storage space even in the defrosting process, it is possible to shorten the cooling time of the contents.

In addition, when the temperature-adjusted storage device of the present invention is defrosting, and the temperature of the refrigerant evaporator detected by the evaporator temperature sensor is higher than the preset fixed temperature or the temperature of the contents stored in the storage space In this case, the blowing of the air passing through the refrigerant evaporator into the storage space is stopped.

Thereby, during the defrosting period, it is possible to prevent air heated for defrosting from being blown out into the storage space. As a result, it is possible to eliminate the unnecessary cooling time for recooling the warm air blown into the storage space after the defrosting is completed as in the related art, thereby shortening the cooling time of the contents.

Description of drawings

Fig. 1 is a schematic diagram of a temperature-regulated storage device for storing contents in Embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of a temperature-regulated storage device in Example 1 of the present invention.

In Fig. 3, (a) is a sectional view of the temperature-regulating storage device in Example 1 of the present invention, (b) is an explanatory view observed from the door side of the temperature-regulating storage device in Example 1 of the present invention, ( c) is an explanatory diagram of an example of use of the shade in Embodiment 1 of the present invention.

Fig. 4 is a graph for comparative explanation of the time to drop to a desired temperature in Example 1 of the present invention.

Fig. 5 is an explanatory diagram of an airflow direction control unit in Embodiment 1 of the present invention.

6 is an explanatory diagram of an angle adjustment mechanism of the wind direction control unit in Embodiment 1 of the present invention.

Fig. 7 is an explanatory diagram of a louver in Embodiment 1 of the present invention.

Fig. 8 is a graph for explaining the comparison of the presence or absence of a shade in Example 1 of the present invention.

Fig. 9 is an explanatory diagram of an airflow direction control unit in Embodiment 2 of the present invention.

In Fig. 10, (a) is a cross-sectional view of the temperature-regulated storage device in Example 3 of the present invention viewed from above, and (b) is an illustration of the temperature-regulated storage device in Example 3 of the present invention viewed from the side direction (c) is an explanatory diagram of an example of use of a shade and a movable closing panel in Embodiment 3 of the present invention.

Fig. 11 is a schematic diagram of a temperature-regulated storage device in Example 4 of the present invention.

Fig. 12 is an explanatory diagram of a section of a temperature-regulated storage device in Example 5 of the present invention.

Fig. 13 is a schematic diagram of a temperature-regulated storage device for storing contents in Embodiment 6 of the present invention.

In FIG. 14 , (a) is a time chart showing the relationship between the operating state of the refrigerator, the blowing temperature, and the core temperature of agricultural products in Embodiment 6 of the present invention, and (b) is a time chart showing the relationship among the conventional example. A time chart showing the relationship between the operating state of the refrigerator, the blowing temperature, and the core temperature of agricultural products.

Fig. 15 is a schematic diagram of a temperature-regulated storage device for storing contents in Embodiment 7 of the present invention.

In Fig. 16, (a) is a time chart showing the relationship between the blowing temperature and the core temperature of agricultural products in Example 7 of the present invention, and (b) is a time chart showing the blowing temperature and the core temperature of agricultural products in the conventional example. Time plot of the relationship between internal temperature.

Fig. 17 is an operation explanatory view of a temperature-regulated storage device having two sets of air outlets and air inlets in Embodiment 8 of the present invention.

Detailed ways

Hereinafter, an embodiment for carrying out the present invention will be described in detail based on the drawings.

An example in which the temperature-adjusted storage device of the present invention is applied to a refrigerated container will be described. It should be noted that the examples disclosed below are only the content of disclosing a specific example, and the present invention is of course not limited to the examples. In addition, the cooling time disclosed in the Example is a setting for understanding.

[Example 1]

Example 1 will be described based on FIGS. 1 to 8 .

A refrigerated container is obtained by assembling a refrigerator 2 to a transport container 1 provided with a thermal insulation structure for freezing or refrigeration, and the operation of the refrigerator 2 adjusts the contents α stored in the storage space to a desired temperature. Here, the storage space is the internal space of the transport container 1 . It should be noted that the transport container 1 corresponds to a frame having a storage space capable of storing the contents α, and the refrigerator 2 generates cold air blown into the storage space. Here, the cold wind is an example of air-conditioning wind which is air flow whose temperature is controlled.

The transport container 1 is a short sea container or vehicle-mounted container, and has a substantially rectangular parallelepiped shape that can be transported independently. Hereinafter, for convenience of description, the door 3 side of the transport container 1 is referred to as the rear, the side away from the door 3 is referred to as the front, the bottom side is referred to as the lower side, the top wall side is referred to as the upper side, and the side from the door 3 side is referred to as the front. The right side observed is called right, and the left side seen from the door 3 side is called left, and it demonstrates. It should be noted that the above directions are used to illustrate the embodiments, but not to limit the present invention.

The refrigerating machine 2 is operated by receiving power supply from a commercial power supply or a container-specific power supply, and the refrigeration cycle system, the cold air production channel 4, the condenser fan, the evaporator fan 5, and the control device are unitized and assembled in the transport container 1. front position.

The refrigeration cycle system is configured using an electric compressor, a refrigerant condenser (condenser), a pressure reducing device (expansion valve), a refrigerant evaporator 6 (evaporator), and the like.

The electric compressor is composed of an electric motor and a refrigerant compressor. The electric motor is used to drive the refrigerant compressor, and the control device is mainly used to control the energization of the electric motor, thereby controlling the cooling capacity of the refrigeration cycle system and controlling the temperature of the storage space. . Here, the electric motor is, for example, a three-phase AC motor.

The cold air production tunnel 4 is an air passage that is attached to the front of the transport container 1 and extends in the vertical direction. Specifically, the cold air production duct 4 is a passage member that sucks air in the storage space and returns it to the storage space again, and the refrigerant evaporator 6 is arranged inside it.

The condenser fan is an electric fan for forcibly exchanging heat between the refrigerant condenser and the outside air (outside air of the transport container 1 ), and energization is controlled by the control device.

The evaporator fan 5 is an electric fan that sucks the air in the storage space into the cold wind making channel 4 and blows the air (cold air) that has passed through the refrigerant evaporator 6 to the storage space again, and is energized by the control device.

The control device controls the energization of each electrical functional component mounted on the refrigerator 2 .

Here, the above-mentioned refrigerant evaporator 6 corresponds to a heat exchanger for cooling air. In addition, the refrigerator 2 includes a temperature sensor 7 for measuring the temperature of cold air blown into the storage space. In addition, the refrigerator 2 is provided with a temperature setting unit manually set by the user.

Furthermore, the control device controls energization of the electric motor of the electric compressor, etc. based on the set temperature set by the temperature setting unit and the temperature detected by the temperature sensor 7 so that the temperature of the storage space is maintained at the set temperature.

As a specific example, the control device controls the rotational speed of the refrigerant compressor by inverter-controlling the energization amount of the electric motor based on the set temperature and the detected temperature. In addition, the control device performs on-off control of the condenser fan according to the operating state of the refrigeration cycle system. In addition, the control device switches the evaporator fan 5 to high-speed operation or low-speed operation according to the fan switch set by the user.

In the refrigerated container of the first embodiment, the air outlet 8 for blowing the cold air generated by the refrigerator 2 to the storage space and the suction port 9 for returning the air in the storage space to the refrigerator 2 are provided on the side of the storage space. And the opposite position.

The transport container 1 is an example of a transportable frame, and the blower port 8 and the suction port 9 of the first embodiment are provided at diagonal positions in the storage space. Thereby, a positional relationship is established in which the cold air blown out from the blower port 8 is sucked into the suction port 9 via the contents α.

More specifically, as shown in Fig. 2 and Fig. 3 (a), the air outlet 8 is provided along the lower edge of the rear end of the storage space, and the suction port 9 is provided along the upper edge of the front end of the storage space, as shown in Fig. 1, the cool air blown out from the air outlet 8 is sucked in through the suction port 9 after passing through all the contents α stored in the storage space.

Here, an example of the contents α is that the contents of the agricultural products are stored in the air-permeable plastic container box, and the plurality of plastic container boxes containing the agricultural products are stacked in the left, right, front, back, up and down directions in the refrigerated container. The inside (the storage space of the transport container 1) is stacked and arranged. Here, the plastic container box is a plastic box that has a substantially net-shaped ventilation surface formed on the side surface and the bottom surface, and can be fitted and stacked in the vertical direction.

As mentioned above, in the refrigerated container of this embodiment 1, the air outlet 8 for blowing the cold air generated by the refrigerator 2 to the storage space and the suction port 9 for returning the air in the storage space to the refrigerator 2 are provided at a distance between the storage space and the storage space. opposite position.

As a result, the cool air blown out from the air outlet 8 passes through all the contents α stored in the storage space and is sucked into the suction port 9, so that all the contents α can be uniformly cooled to a desired temperature in a short time. The storage object α is the agricultural products in the plastic container box piled up in the storage space.

Thus, the refrigerated container of this Example 1 can uniformly cool all the contents α to a desired temperature in a short time, although the low-cost forced ventilation system is used.

A specific example will be described with reference to the graph in FIG. 4 .

In the case of a refrigerated container with a conventional structure in which cold air is blown from the bottom surface of the storage space of the refrigerated container, in order to cool the content α to 5°C, it takes about 26 to 29 hours for cooling in places that are difficult to cool (see Fig. Graph A) of 4.

On the other hand, by arranging the outlet 8 and the inlet 9 at opposing positions and disposing the outlet 8 and the inlet 9 at diagonal positions in the storage space, in order to cool the contents α to 5°C, even It is a position where cooling is difficult, and it can be shortened to about 14 hours (see graph B of FIG. 4 ).

Refrigerated containers are transportable. Therefore, the transported contents can be cooled quickly and stably maintained at a desired temperature.

In addition, it can also be used as a movable pre-cooling facility or a storage refrigerator other than for transportation. Thereby, the refrigerated container can be transported and utilized to the place which requires a pre-cooling facility and a storage, and the operating rate of a refrigerated container can be improved. That is, the cost effect of a refrigerated container can be improved.

In this way, the refrigerated container is transportable, and the pre-cooling equipment and the storage refrigerator are movable. Therefore, according to the first embodiment, they can be used at the site of the transport destination or the moving destination. Therefore, the contents α can be cooled in real time at the moving destination.

In the refrigerated container, the air outlet 8 and the air inlet 9 are arranged at diagonal positions in the storage space. Accordingly, the plurality of stored objects α accumulated in the storage space can be uniformly cooled to a desired temperature in a short period of time, and uneven cooling of the stored objects α can be suppressed.

As mentioned above, in the refrigerated container of this Example 1, the air outlet 8 is provided along the lower edge of the rear end of a storage space. On the other hand, the refrigerator 2 is assembled in the front part of the conveyance container 1 as one unit.

Therefore, a cold air guide passage 10 for guiding cold air from the cold air outlet of the cold air production duct 4 to the air outlet 8 at the rear end lower edge of the storage space is required.

Here, as shown in FIG. 3( b ), a plurality of T-shaped rails 11 are provided in advance on the bottom surface of the transport container 1 . Therefore, in this Example 1, the cold wind guide passage 10 is provided using the several T-shaped rail 11. FIG.

Specifically, the T-shaped rail 11 extends in the front-rear direction, and a slit extending in the front-rear direction is provided between the upper surface of the T-shaped rail 11 and the upper surface of the adjacent T-shaped rail 11 . If this slit is used as the blowing slit of the cold wind in the existing structure, but in this embodiment 1, in order to guide the cold wind to the outlet 8 of the rear end lower edge of the storage space, the blowing slit cannot be set on the bottom surface. seam.

Therefore, in this first embodiment, the upper surface of the plurality of T-shaped rails 11 is covered with a plate material 12 made of aluminum or the like to close the blowing slit, and the space between the plurality of T-shaped rails 11 is used as a cold air guide passage. 10. By adopting this structure, the implementation cost of the refrigerated container which arrange|positions the blower port 8 and the suction port 9 at a diagonal position can be suppressed.

In this way, by laying the plate 12 on the upper surface of the T-shaped track 11, the cold air guide passage 10 that guides cold air from the cold air outlet of the cold air production channel 4 at the front end of the bottom surface to the air outlet 8 at the rear end can be obtained.

Thereby, the blower port 8 and the suction port 9 can be easily arrange|positioned at a diagonal position. That is, the implementation cost of the refrigerated container to which this invention is applied can be suppressed.

The airflow direction control part 13 which adjusts the blowing angle of the up-down direction of the blown cold air is provided in the air outlet 8 of this Example 1.

The wind direction control part 13 is installed on the inner surface of the door 3 as shown in FIG. Of course, the wind direction control unit 13 is provided so as not to interfere with the opening and closing of the door 3 .

The wind direction control unit 13 may be fixed so that its angle cannot be changed, or may be a member capable of arbitrarily adjusting the vertical angle of the cool air blown out from the air outlet 8 .

The angle adjustment mechanism of the wind direction control unit 13 is not limited, and an example will be described with reference to FIG. 6 . The airflow direction control part 13 is a rectangular plate, and the airflow direction control part 13 of the first embodiment is divided into a plurality of horizontal direction and provided so that the blowing angle can be adjusted at each position in the horizontal direction.

The lower end of each wind direction control part 13 is assembled to the support plate 15 attached to the inner surface of the door 3 via the hinge 14. As shown in FIG. On the other hand, an angle fixing plate 16 for fixing the angle of the airflow direction control section 13 at an arbitrary position is provided at the left and right end parts of each airflow direction control section 13 . The rear end of the angle fixing plate 16 is fixed to the support plate 15 , and an arc-shaped slit 16 a is provided within the rotation range of the wind direction control part 13 . Screws (bolts, etc.) that can be screwed to the ends of the airflow direction control part 13 in the left and right directions are inserted into the slits 16a, and the angle of the airflow direction control part 13 is adjusted by tightening the screws after adjusting the angle of the airflow direction control part 13. fixed.

In this way, by disposing the wind direction control unit 13 at the air outlet 8 so that the blowing direction of cold air is toward the suction port 9, the cold air can be blown toward the contents α accumulated in the storage space, thereby shortening the cooling time of the contents α.

Specifically, by providing the wind direction control unit 13, in order to cool the content α to 5°C, even in a place where cooling is difficult, the time can be shortened to about 7.5 hours (see graph C in FIG. 4 ).

In addition, in this Example 1, although the wind direction control part 13 was shown as the example which fixedly arrange|positioned or made it possible to adjust the angle, it may also be made so that it can swing by electric power.

A plurality of louvers 17 for adjusting the blowing angle of the blown cold air in the left and right directions are provided at the blowing outlet 8 of the first embodiment.

The louver 17 is provided over substantially the entire range of the air outlet 8 . Specifically, as shown in FIG. 7 , the louver 17 is provided on the wind direction control unit 13 to adjust the blowing direction of the cold air blown out from the air outlet 8 in the left and right directions, thereby suppressing uneven cooling in the left and right directions.

Each louver 17 may be fixed so that its angle cannot be changed, or may be a member capable of arbitrarily adjusting the angle of the left-right direction of the cool air. Of course, the angle adjustment mechanism of the louver 17 is not limited, and can be suitably adopted.

In this way, by providing the louvers 17 for adjusting the blowing direction of the cold air blown out from the air outlet 8 in the left and right directions, it is possible to uniformly and quickly cool all the stored objects α accumulated in the storage space.

In addition, in this Example 1, although the example in which the shutter 17 was fixedly arrange|positioned or was made adjustable in angle was shown, you may make it swingable by electric power.

The refrigerated container of the first embodiment is provided with a shutter 18 for closing an upper gap formed above the stored object α and a lateral width gap generated in the left-right direction of the stored object α.

The structure and material of the shade 18 are not limited, but in this Embodiment 1, an example provided with a flexible film member will be described as an example to assist understanding.

The shade 18 of the first embodiment is made of, for example, a resin having a predetermined thickness (for example, a thick vinyl film, etc.), and is installed so that the left and right widths match the left and right widths of the storage space.

The shade 18 hangs down from the ceiling wall on the rear side of the storage space. As an example, the lower end of the shade 18 that hangs down reaches the bottom surface.

In addition, the shade 18 is provided with a plurality of vertical slits 18a (slits) extending in the vertical direction, and the shade 18 has a structure divided into a plurality in the left-right direction. In addition, the number of slits 18a and the position where the slits 18a are provided are not limited, but as an example, in this Example 1, three slits 18a are provided at equal intervals.

In this way, by providing the shielding curtain 18, as shown in FIG. Bad condition of the upper gap.

As a result, since the cool air blown out from the air outlet 8 can be reliably drawn into the suction port 9 via the contents α, the contents α can be cooled quickly and reliably.

In addition, as shown in FIG. 3( c), when the horizontal width of the storage α accumulated in the storage space is narrower than the left and right width of the storage space, since it can be closed by the shade 18 divided by the vertical slit 18a Because of the lateral width gap formed between the storage objects α accumulated in the storage space and the side walls of the storage space, it is possible to avoid the bad situation that cold air passes through the lateral width gap.

A specific example will be described with reference to the graph in FIG. 8 .

In the case where the shielding curtain 18 is not provided, a part of the cold air blown out from the outlet 8 passes through the upper gap between the upper part of the storage object α and the ceiling wall of the storage space and is sucked by the suction port 9. Therefore, as shown in FIG. As shown by the line D, it takes time to cool the stored object α.

On the other hand, in the first embodiment in which the shielding curtain 18 is provided on the upper part of the storage space, since the shielding curtain 18 closes the upper gap between the upper part of the storage α and the ceiling wall of the storage space, the cooling air is reliable without waste. The ground passes through the contents α and is sucked into the suction port 9, as shown by the solid line E in FIG. 8 , so that the contents α can be rapidly cooled.

In addition, since the slit 18a extending in the vertical direction is provided on the shade 18 of the first embodiment, it can be utilized even when there is a lateral width gap between the storage object α and the side surface of the storage space. A part of the shade 18 divided by the slit 18a closes the lateral width gap.

Fig. 3(c) shows a specific example thereof. When the lateral width of the stored objects α stacked in the storage space is narrower than the lateral width of the storage space, the stored objects α are stacked so as not to have a lateral gap with the left side of the storage space. As a result, a lateral width gap is generated between the right end surface of the stacked contents α and the right side surface of the storage space. However, in this state, as shown in FIG. 3( c ), a part of the shade 18 divided by the slit 18 a fills up the lateral width gap generated on the right side.

In this way, since the width gap can be closed by a part of the shade 18 , it is possible to prevent a delay in cooling time due to the width gap.

As mentioned above, the refrigerator 2 of this Example 1 is provided with the temperature sensor 7 which detects the temperature of the cool air blown out from the outlet 8. As shown in FIG.

Here, in the case of the refrigerating machine 2 of the existing structure, a temperature sensor 7 is installed in the inside of the cold wind making passage 4, so that the temperature of the cold air just passing through the evaporator 6, that is, the temperature of the cold air blown out from the cold wind making passage 4 to test.

On the other hand, in the first embodiment, the cold air blown out from the cold air producing duct 4 passes through the cold air guide passage 10 between the T-shaped rails 11 , and then blows out from the air outlet 8 . Therefore, if the temperature sensor 7 is arranged in the inside of the cold wind production passage 4 as in the conventional structure, the temperature blown out from the air outlet 8 is higher than the blown temperature detected by the temperature sensor 7, and the cooling time becomes longer. situation. The cool air guide passage 10 is a passage extending long in the front-rear direction on the lower surface of the transport container 1 .

On the other hand, in the first embodiment, the temperature sensor 7 is arranged in the vicinity of the air outlet 8 . As a specific example, as shown in FIG. 1 , the temperature sensor 7 is arranged near the rear end of the T-shaped track 11 . Here, the vicinity of the rear end of the T-shaped rail 11 is located on the rear end side of the cool air guide passage 10 .

By doing so, since the temperature detected by the temperature sensor 7 and the temperature actually blown out from the outlet 8 can be made to substantially match, cold air suitable for cooling can be blown out from the outlet 8 . As a result, it is possible to avoid the inconvenience that the cooling time becomes longer.

In the refrigerated container according to the first embodiment, an inclined member 19 for smoothly switching the flow direction of the cold air is arranged at a corner portion located in the middle of the path of the cold air guided to the air outlet 8 . Here, the corner is where the cold wind makes a sharp turn.

As a specific example, as shown in FIG. 1 , in Embodiment 1, a curved surface is arranged at the corner of the connection position between the lower end of the cold wind production passage 4 extending in the vertical direction and the cold wind guide passage 10 extending in the front and rear direction. The inclined member 19 is provided so as to smoothly guide the cold air from the cold air production duct 4 to the cold air guide passage 10 .

In this way, by providing the curved inclined member 19 at the corner where the cold air turns sharply, the cold air can be smoothly guided from the cold air production duct 4 to the cold air guide passage 10 , and the pressure loss of the cold air can be suppressed. Furthermore, as the pressure loss is reduced, the cooling efficiency of the contents α can be improved, and the cooling time can be shortened.

It should be noted that the shape of the slanting member 19 is not limited to a curved shape, and may be a sloping plate or the like. Of course, the arrangement position of the inclined member 19 is not limited, for example, it can also be arranged at the outlet position of the cold wind guide passage 10, that is, at the air outlet 8, so that the cold wind blown from the cold wind guide passage 10 can be smoothly set towards the wind direction control part 13. .

In the first embodiment, the suction port 9 is provided on the back side (front side) of the storage space.

Then, the cool air passing through the contents α accumulated in the storage space is sucked into the upper suction port 9 through the front gap between the front surface of the storage space and the front surface of the contents α accumulated in the storage space.

Therefore, when the contents α are pressed against the front surface of the storage space, the front gap is closed, and in particular, the cooling rate for cooling the contents α stacked on the lower side decreases.

In this regard, in the first embodiment, a stopper 20 is provided on the back side (front side) of the storage space. An air passage (front gap) is ensured between the wall surfaces (front surface of the housing space).

An example of a specific stopper 20 is provided on the bottom surface of the storage space. The stopper 20 is a member (rod, net, etc.) extending in the left-right direction, and the front end of the stored object α abuts against the stopper 20, thereby preventing the forward movement of the stored object α.

The limiter 20 is fixed on the bottom surface at a predetermined distance from the front end of the accommodation space to the rear side. It should be noted that the front gap ensured by the stopper 20 is at least 5 cm or more, preferably 10 cm or more, more preferably 20 cm to 30 cm. As an example, in the first embodiment, a front clearance of 30 cm is ensured by the stopper 20 .

In the first embodiment, by providing the stopper 20, it is possible to avoid the inconvenience that the front gap is blocked by the stored object α. As a result, the contents α can be cooled reliably and rapidly, and the reliability of the refrigerated container can be improved.

In addition, the stopper 20 has a structure in which a member extending in the left-right direction is attached to the bottom surface member, and the cost is suppressed. That is, high reliability can be obtained at low cost.

In addition, the stopper 20 shown in this Example 1 is only an example, and is not limited. Specifically, the stopper 20 only needs to prevent the storage object α from being pressed against the front surface of the storage space to secure a front gap, and may be, for example, a rod, a metal mesh, or a grid along the vertical direction.

[Example 2]

Embodiment 2 will be described with reference to FIG. 9 . It should be noted that, in each of the following embodiments, the same reference numerals as those in the above-mentioned embodiment 1 denote components with the same functions.

In this second embodiment, the wind direction control unit 13 is formed in two stages, so that the blowing angle of the cool air is set in two stages. Specifically, the wind direction control unit 13 of the second embodiment includes a first control panel 13 a for directing the blowing direction of the cool air at an angle lower than that toward the suction port 9 and a second control panel 13 a for directing the blowing direction of the cold wind toward the suction port 9 . plate 13b.

Thus, by forming the wind direction control unit 13 in two stages, it is possible to suppress uneven blowing of the cold air in the vertical direction, thereby suppressing uneven cooling of the contents α.

Specifically, in this embodiment, the cold air is blown at a low angle by the first control panel 13a, so that the amount of cold air passing through the lowermost layer of the container α can be increased. Thereby, it is possible to avoid uneven cooling of the lowermost container α, which tends to cause uneven cold air.

[Example 3]

Embodiment 3 will be described with reference to FIG. 10 .

In the above-mentioned Embodiment 1, although the shade 18 of the type hanging from the top wall is shown, the shade 18 of this Embodiment 3 adopts a roller blind type shade, and the distance from the top wall to the shade 18 can be adjusted arbitrarily. The height of the lower end. It should be noted that during the operation of the evaporator fan 5 (during the operation of the refrigerated container), the lower end of the shade 18 is pressed against the contents α by utilizing the differential pressure between the upstream side and the downstream side of the shade 18, so A gap is avoided between the shade 18 and the container α. Therefore, leakage of cool air between the shade 18 and the container α is avoided.

As in the first embodiment, since the upper gap between the container α and the top wall can be closed by the shade 18 of the third embodiment, delay in cooling time due to the upper gap can be prevented. In addition, since the shade 18 is rolled up when taking out and loading the contents α, there is no trouble that the shade 18 interferes with the work of taking out and putting in the contents α.

In addition, in the above-mentioned first embodiment, an example was shown in which a part of the shade 18 divided by the slit 18a closes the lateral width gap generated between the storage object α and the side surface of the storage space. On the other hand, in this Example 3, the lateral width gap is closed using the openable and closable movable closing plate 21 . The movable closing plate 21 is attached to the side surface of the storage space, and when a lateral gap occurs, the movable closing plate 21 is opened to close the lateral gap. Specifically, as shown in FIG. 10( c ), the movable blocking plate 21 is attached to the left side of the storage space.

As in Example 1, since the lateral width gap can be closed by the movable closing plate 21 , it is possible to prevent a delay in cooling time due to the lateral width gap. In addition, since the movable closing plate 21 adopts an opening and closing type, even if the lateral width gap changes, the lateral width gap can be closed reliably.

[Example 4]

Embodiment 4 will be described with reference to FIG. 11 .

In the refrigerated container of this embodiment 4, the outlet 8 is arranged on the lower edge of the front end of the storage space, and the suction inlet 9 is arranged on the upper edge of the rear end of the storage space, and the cold wind blown from the outlet 8 passes through all the containers stored in the storage space. The contained content α is inhaled by the suction port 9.

A top plate 22 serving as a ceiling wall of the storage space is provided on the upper portion of the transport container 1 according to the fourth embodiment, and a cold air suction passage 23 is formed between the top plate 22 and the upper wall surface of the transport container 1 . The rear end of the cool air suction passage 23 is opened at the upper part of the storage space as the suction port 9 . In addition, a structure is adopted in which the front end of the cold wind suction passage 23 is connected to the upper end of the cold wind production duct 4 , and the air passing through the cool wind suction passage 23 is sucked into the cold wind production duct 4 .

In this way, even if the outlet 8 is arranged on the lower edge of the front end of the storage space and the suction inlet 9 is arranged on the upper edge of the rear end of the storage space, the same as in the above-mentioned embodiment 1, the cold wind blown out from the outlet 8 passes through the storage space. Since all the contents α in the storage space are sucked into the suction port 9, the same effect as that of the first embodiment described above can be obtained.

It should be noted that the air outlet 8 of the embodiment 4 is shared with the cold air outlet of the cold air production channel 4 , and the temperature sensor 7 is arranged near the outlet of the cold air production channel 4 . Of course, a louver 17 may be provided at the air outlet 8 to adjust the blowing direction.

[Example 5]

Embodiment 5 will be described with reference to FIG. 12 .

In the refrigerated container of Embodiment 5, the air outlet 8 is provided at the lower edge of the front end of the storage space, and the midway suction port 9a is provided at the rear end of the partition member 24 that divides the storage space up and down. The rear end of the divided partition 24 is provided with an intermediate air outlet 8a, and the cold air blown from the air outlet 8 passes through all the contents α stored in the storage space and is sucked by the suction port 9.

In this way, even if the air outlet 8 is arranged at the lower edge of the front end of the storage space and the suction port 9 is arranged at the upper edge of the front end of the storage space, the cold air blown out from the air outlet 8 passes through the partition which divides the storage space up and down. All the contents α below 24 (all the agricultural products accumulated in the storage space under the partition 24 that vertically divides the storage space) are sucked by the intermediate suction port 9a. Similarly, the cold air blown out from the midway outlet 8a passes through all the stored objects α (accumulated in the storage space above the partition 24 that vertically partitions the storage space) that are accommodated on the partition 24 that vertically partitions the storage space. All the agricultural products in the plastic container box) are sucked by the suction port 9. Therefore, the same effects as those of Embodiment 1 described above can be obtained.

In addition, in Example 5, it goes without saying that the outlet 8 and the inlet 9 can be considered to be in a positional relationship facing each other across the accommodation space.

[Example 6]

Embodiment 6 will be described based on FIGS. 13 to 14 .

As described in the above-mentioned embodiments, the refrigerated container of the sixth embodiment includes: the transport container 1 having a storage space capable of storing the contents α; The cold air refrigerates the content α stored in the storage space to a desired temperature by the operation of the refrigerator 2 .

Moreover, as mentioned above, a refrigerated container is provided with the air outlet 8 which blows the cold air which the refrigerator 2 generate|occur|produced into the storage space, and the suction port 9 which returns the air (cold air) in the storage space to the refrigerator 2.

In addition, the refrigerated container is also provided with a forward and reverse switching unit, which alternately switches the forward rotation and the reverse rotation to operate,

In the normal rotation operation, the air-conditioning wind generated by the refrigerator 2 is blown out from the outlet 8, and the air in the storage space is returned to the refrigerator 2 from the inlet 9,

In the reverse operation, the air-conditioning air generated by the refrigerator 2 is blown out from the suction port 9 , and the air in the storage space is returned to the refrigerator 2 through the outlet 8 . Here, the forward and reverse switching unit corresponds to a control program or a control sequence provided in the control device.

The air blower provided in the refrigerator 2 and blowing air-conditioning air to the storage space is the above-mentioned evaporator fan 5, and the evaporator fan 5 is an axial-flow electric fan.

Specifically, the evaporator fan 5 is provided with a propeller fan on a rotating shaft driven by an electric motor. In this embodiment 6, the control device switches the rotation direction of the electric motor to a forward rotation direction or a reverse rotation direction, thereby executing Switching between forward rotation and reverse rotation. Here, the electric motor is, for example, a three-phase AC motor.

The refrigerated container of this embodiment 6 uses:

The air outlet side temperature sensor 31a detects the temperature of the air conditioning wind blown out from the air outlet 8 during forward rotation;

Air outlet-side cargo temperature sensor 31b, which directly or indirectly detects the temperature of the contents α arranged at the position where the air-conditioning wind blown out from the air outlet 8 first contacts during forward rotation;

A suction port side temperature sensor 32a that detects the temperature of the air conditioning wind blown from the suction port 9 during the reverse operation;

A suction port side cargo temperature sensor 32b that directly or indirectly detects the temperature of the contents α arranged at a position where the air-conditioning wind blown from the suction port 9 first contacts during the reverse operation; and

The control device switches between forward rotation and reverse rotation based on the temperatures detected by the outlet-side temperature sensor 31a, the outlet-side cargo temperature sensor 31b, the suction-side temperature sensor 32a, and the suction-side cargo temperature sensor 32b.

A specific example of the air outlet-side temperature sensor 31 a is attached to the lower portion of the cold wind producing duct 4 , and detects the temperature of the air passage from the cold wind producing duct 4 to the cold wind guide passage 10 .

A specific example of the inlet-side temperature sensor 32 a is installed on the upper portion of the cold wind producing duct 4 , and detects the temperature of the air path from the storage space to the cold wind producing duct 4 .

As a specific example of the air outlet side cargo temperature sensor 31b, it may be a sensor that detects the outer surface temperature of the content α closest to the air outlet 8, or may be inserted into the inner side of the content α closest to the air outlet 8 (plastic container). A sensor that detects the internal temperature of the contents α. The outer surface temperature of the contents α is, for example, the surface temperature of a plastic container box. The internal temperature of the container α is, for example, the core temperature of agricultural products.

Similarly, as a specific example of the cargo temperature sensor 32b on the suction port side, it may be a sensor that detects the outer surface temperature of the contents α closest to the suction port 9, or may be inserted into the inner side of the contents α closest to the suction port 9. A sensor that detects the internal temperature of the contents α.

The control device controls the energization of each electrical functional component mounted on the refrigerator 2 , and can perform operation control with a microcomputer, or a sequential circuit, for example.

The control device controls the energization of each electrical functional component mounted on the refrigerator 2 based on signals from an operation switch manually set by the user, a temperature setting unit, etc., in addition to the above-mentioned temperature sensor.

The control device performs inverter control on the energization amount of the electric motor in the electric compressor, thereby variably controlling the rotational speed (compression rotational speed) of the refrigerant compressor as shown in the time chart in the lower stage of Fig. 14(a), thereby The operating capacity of the refrigerator 2 is controlled.

In the refrigerated container of the sixth embodiment, the operation of the refrigerating machine 2 enables pre-cooling to quickly cool the contents α stored in the storage space to within a predetermined temperature range.

In addition, in the refrigerated container according to the sixth embodiment, at least during precooling, the normal rotation operation and the reverse rotation operation are alternately repeated by the above-mentioned forward and reverse switching unit.

As a specific example, the control device is configured to perform a cooling mode in which forward rotation maximum cooling operation and reverse rotation maximum cooling operation are alternately switched during precooling,

In the forward rotation maximum cooling operation, the forward rotation operation is performed and the refrigerator 2 is operated at the maximum capacity until the detection temperature of the outlet side temperature sensor 31a drops to the target temperature,

In the reverse maximum cooling operation, the reverse operation is performed and the refrigerator 2 is operated at the maximum capacity until the temperature detected by the suction port side temperature sensor 32a falls to the target temperature.

Here, the target temperature is, for example, 0°C. In addition, the maximum capacity is the maximum rotational speed of the refrigerant compressor.

During execution of the cooling mode, it is determined by the core temperature of the agricultural product monitored by the outlet-side cargo temperature sensor 31b and the suction inlet-side cargo temperature sensor 32b. The cooling mode is performed until the core temperature of the agricultural product is lowered to the target temperature. Here, the target temperature is, for example, 5°C.

Then, when the cooling mode ends, the refrigerator 2 is shifted to a saving (save) cooling operation (capacity limitation mode).

It should be noted that, unlike the sixth embodiment, the execution period of the cooling mode may be determined by a set time based on a timer or the like. Here, the set time may be a fixed time or a time that can be variably set manually.

An operation example of a specific cooling mode will be described.

(i) When the operation switch is turned on, first, the above-mentioned normal rotation maximum cooling operation is performed. That is, until the temperature detected by the outlet-side temperature sensor 31 a (see solid line A1 in FIG. 14( a )) reaches 0° C., the refrigerator 2 is operated at its maximum capacity and performs normal rotation.

(ii) During the forward rotation maximum cooling operation, when the temperature detected by the outlet side temperature sensor 31a (see the solid line A1 in FIG. Run cold. That is, until the temperature detected by the suction port side temperature sensor 32a (see dotted line A2 in FIG. 14( a )) reaches 0° C., the refrigerator 2 is operated at its maximum capacity and reversed.

(iii) During reverse maximum cooling operation, when the temperature detected by the suction port side temperature sensor 32a (see solid line A2 in FIG. 14(a)) reaches 0°C, switch to forward rotation maximum cooling again. run.

Hereinafter, the above (ii) and (iii) are alternately repeated until the release condition of the cooling mode is satisfied.

(iv) During execution of the cooling mode, when the core temperature of the agricultural products monitored by the outlet-side cargo temperature sensor 31b and the suction inlet-side cargo temperature sensor 32b drops to the target temperature, the cooling mode is terminated and the cooling mode is switched to the cooling mode. The capacity limit mode of the operating capacity of machine 2. Here, the target temperature is, for example, 5°C.

The refrigerated container of this embodiment 6 is operated by alternately switching the normal rotation operation and the reverse rotation operation,

In the normal rotation action, the cold wind is blown out from the air outlet 8 to the storage space, and the air in the storage space is sucked from the suction port 9,

During the reversing operation, cool air is blown out from the suction port 9 into the storage space, and air in the storage space is sucked in from the blower port 8 .

As a result, the normal rotation operation for cooling the stored object α from the side closer to the air outlet 8 and the reverse rotation operation to cool the stored object α from the side closer to the suction port 9 are alternately performed.

Therefore, it is possible to uniformly cool a wide range of stored objects α stored in the storage space to a desired temperature in a short time. That is, the refrigerated container of the sixth embodiment can uniformly cool all the contents α to the target temperature in a short time even though the relatively inexpensive forced ventilation method is used.

As a more specific effect, the refrigerated container according to the sixth embodiment performs a cooling mode in which the forward rotation maximum cooling operation and the reverse rotation maximum cooling operation are alternately switched as described above during precooling. That is, precooling is performed by operating the refrigerator 2 at its maximum capacity and repeating forward rotation and reverse rotation alternately.

Thereby, the period B during which the refrigerator 2 is operated at the maximum capacity can be made longer than in the prior art without cooling the core temperature of the agricultural product to 0° C. or lower.

Therefore, compared with the prior art (see FIG. 14( b )), as shown by the solid line C in FIG. 14( a ), the period for cooling the core temperature of agricultural products to a desired temperature range can be shortened.

As mentioned above, in the refrigerated container of this Example 6, the blower port 8 and the suction port 9 are provided in the opposing position of a storage space, and are provided in the diagonal position of a storage space.

According to this configuration, it is possible to uniformly cool a wide range of stored objects α in the storage space, and shorten the pre-cooling time.

[Example 7]

Example 7 will be described based on FIGS. 15 to 16 .

As described above, the refrigerator 2 includes the evaporator fan 5 for blowing the air passing through the refrigerant evaporator 6 to the storage space, and the evaporator fan 5 of the seventh embodiment is an axial-flow electric fan.

When performing pre-cooling of agricultural products, it is desirable to quickly cool the agricultural products serving as the container α to the target pre-cooling temperature. However, harvested agricultural products have high water retention, so when pre-cooling is performed, evaporation of water from the agricultural products is promoted, and air with high humidity passes through the refrigerant evaporator 6 during the pre-cooling process. It should be noted that the target precooling temperature is 0°C to 10°C.

In order to cool the core temperature of the agricultural products to the target pre-cooling temperature as quickly as possible and avoid freezing of the agricultural products, the temperature of the air blown into the storage space is set at around 0°C. Therefore, during the precooling process, the temperature of the refrigerant evaporator 6 is set to a temperature lower than 0° C., and the refrigerant evaporator 6 is likely to be frosted.

In this way, when precooling is performed, the refrigerant evaporator 6 is likely to be frosted, so the control device is set to perform defrosting (defrosting) periodically or when frosting is detected. It should be noted that the technique of starting and stopping the defrosting operation is well known, and therefore a specific description thereof will be omitted.

In Example 7, an electric heater 41 that generates heat by energization is used as the defrosting unit that defrosts the refrigerant evaporator 6 . It should be noted that the defrosting unit is not limited to the electric heater 41, and may be other heat generating devices.

This electric heater 41 is arranged at the lower portion of the refrigerant evaporator 6 . Specifically, the electric heater 41 directly contacts the lower part of the refrigerant evaporator 6, and the heat passed through the electric heater 41 is directly transferred to the refrigerant evaporator 6, and the heat rising from the electric heater 41 heats the refrigerant evaporator 6, thereby making the The frost adhering to the refrigerant evaporator 6 melts. It should be noted that the electric heater 41 is not limited to directly contacting the lower part of the refrigerant evaporator 6, and can also be connected through other members with good thermal conductivity, or the electric heater 41 can heat the bottom of the refrigerant evaporator 6. way to separate the two.

In addition, the electric heater 41 is controlled to be energized by the control device.

The control device is set to, when defrosting the refrigerant evaporator 6, stop the electric compressor, stop the evaporation of the refrigerant in the refrigerant evaporator 6, and make the electric heater 41 generate heat, and use the heat of the electric heater 41 to melt Frost formed on the refrigerant evaporator 6.

The refrigerated container of this embodiment includes an evaporator temperature sensor 42 that directly or indirectly detects the temperature of the refrigerant evaporator 6 in addition to a control device that controls the operating state of the refrigerator 2 .

As a specific example, the evaporator temperature sensor 42 directly contacts the refrigerant evaporator 6 on the upper side of the refrigerant evaporator 6 and directly detects the temperature of the refrigerant evaporator 6 .

When the refrigerant evaporator 6 is being defrosted and the temperature of the refrigerant evaporator 6 detected by the evaporator temperature sensor 42 is lower than the preset fixed temperature or the temperature of the contents α stored in the storage space Next, the control device operates the evaporator fan 5 to blow the air passing through the refrigerant evaporator 6 to the storage space. The preset fixed temperature is 0°C, 1°C, etc. or the target pre-cooling temperature. The temperature of the contents α is the temperature of agricultural products detected by the outlet-side cargo temperature sensor 31b and the suction inlet-side cargo temperature sensor 32b.

During the defrosting process, and when the temperature of the refrigerant evaporator 6 is lower than the temperature of the container α, the following control program or control sequence is provided in the control device: when the refrigerant evaporator 6 is defrosted, and When the temperature of the refrigerant evaporator 6 detected by the evaporator temperature sensor 42 is lower than the temperature of the contents α, the rotation direction of the evaporator fan 5 is reversed so that air flows from below the refrigerant evaporator 6 toward the refrigerant evaporator. 6, the air that passes through the refrigerant evaporator 6 is blown out to the storage space.

Even during the defrosting process, before the frost formed on the refrigerant evaporator 6 melts, the temperature of the refrigerant evaporator 6 is kept below 0°C.

Therefore, even during defrosting, the air passing through the refrigerant evaporator 6 can be cooled by operating the evaporator fan 5 and passing the air through the refrigerant evaporator 6 as described above. Furthermore, by blowing the air cooled by the refrigerant evaporator 6 into the storage space, the storage object α can be cooled even during the defrosting process.

On the other hand, the control device is set so that when the refrigerant evaporator 6 is defrosted, and the temperature of the refrigerant evaporator 6 detected by the evaporator temperature sensor 42 is higher than a preset fixed temperature or stored in the storage space When the temperature of the contents α inside is lowered, the evaporator fan 5 is stopped, and the air passing through the refrigerant evaporator 6 is not blown out into the storage space.

During the defrosting process, and when the temperature of the refrigerant evaporator 6 is higher than the temperature of the container α, the following control program or control sequence is provided in the control device: when the refrigerant evaporator 6 is defrosted, and When the temperature of the refrigerant evaporator 6 detected by the evaporator temperature sensor 42 is equal to or higher than the temperature of the contents α, the evaporator fan 5 is stopped.

During the defrosting process, when the frost formed on the refrigerant evaporator 6 melts, the temperature of the refrigerant evaporator 6 rises from 0° C. due to the heat of the electric heater 41 .

Therefore, as described above, when the temperature of the refrigerant evaporator 6 rises above the temperature of the contents α, by stopping the evaporator fan 5, it is possible to prevent the air passing through the refrigerant evaporator 6 heated by defrosting. Blow into the containment space. The air here is air that could heat up the containment space.

It should be noted that the control device is set to turn on the cooling mode again when the defrosting in the pre-cooling process ends.

As described above, even when the refrigerated container of this embodiment defrosts during the precooling process, when the temperature of the refrigerant evaporator 6 detected by the evaporator temperature sensor 42 is lower than the temperature of the contents α, the refrigerated container evaporating The fan 5 is reversed so that the cold air passing through the refrigerant evaporator 6 is blown out to the storage space.

Thereby, even in the defrosting process, there is provided a period during which cold air is blown into the storage space, so that the pre-cooling time can be shortened compared with the prior art.

As described above, the refrigerated container of the seventh embodiment operates the evaporator fan 5 during the defrosting process, whereby the air heated by the electric heater 41 forcibly passes through the refrigerant evaporator 6, so the time for defrosting can be shortened. Thereby, the defrosting period can be shortened.

As mentioned above, although the refrigerated container of this embodiment 7 operates the evaporator fan 5 during the defrosting process, since the evaporator fan 5 is reversed, the air heated by the electric heater 41 is heated by the refrigerant evaporator. 6 After cooling down, blow it out into the containment space. Therefore, it is possible to avoid the inconvenience that the air heated by the electric heater 41 is blown out into the storage space.

In the refrigerated container of this embodiment 7, when defrosting is performed and the temperature of the refrigerant evaporator 6 detected by the evaporator temperature sensor 42 is higher than the temperature of the contents α, the evaporator fan 5 is stopped, thereby stopping the refrigerant passing through the refrigerant evaporator 6. Air is blown out into the containment space.

Thereby, during the defrosting period, it is possible to prevent air heated for defrosting from being blown out into the storage space.

Specifically, as indicated by the position γ of the arrow in FIG. 16( a ), it is possible to prevent a rise in the blowing temperature during the defrosting period. As a result, it is possible to eliminate the unnecessary cooling time required for cooling the warm air blown into the storage space again after the defrosting is completed, and shorten the pre-cooling time compared with the prior art.

It should be noted that, in Fig. 16(a) and (b), the solid line A represents the blowing temperature from the refrigerator 2 during the precooling process, and the solid line B represents the core temperature of agricultural products.

As described above, the refrigerated container of this embodiment alternately repeats the normal rotation maximum cooling operation as the normal rotation operation and the reverse rotation maximum cooling operation as the reverse rotation operation by using the above-mentioned forward and reverse switching unit at least during precooling. .

In this way, in the precooling process, by alternately performing the normal rotation operation of cooling the content α from the side close to the air outlet 8 and the reverse operation of cooling the content α from the side close to the suction port 9, it is possible to cool the content α in a short time. It is possible to uniformly cool a wide range of contents α stored in the storage space to a desired temperature, thereby shortening the pre-cooling time.

As mentioned above, in the refrigerated container of this Example 7, the blower port 8 and the suction port 9 are provided in the opposing position of a storage space, and are provided in the diagonal position of a storage space.

According to this structure, it is possible to uniformly cool a wide range of contents α in the storage space, and shorten the pre-cooling time.

[Example 8]

Embodiment 8 will be described with reference to FIG. 17 .

As shown in FIG. 17 , in the refrigerated container of the eighth embodiment, two sets of air outlets 8 and two air inlets 9 are provided at each of the four opposing corners of the transport container 1 .

Among the two groups, the outlet 8 and the suction port 9 of one group are called the first group, and the other group is called the second group. It should be noted that the air outlets 8 of the first group are on the rear side of the transport container 1, the suction ports 9 of the first group are on the front side of the transport container 1, and the air outlets 8 of the second group are on the rear side of the transport container 1. On the front side, the suction ports 9 of the second group are on the rear side of the transport container 1 .

By setting in this way, as shown in FIG. 17 , the passing direction X of the air-conditioning wind connecting the first group of outlets 8 and the suction ports 9 is connected with the passing direction of the air-conditioning wind connecting the second group of outlets 8 and suction ports 9. Y intersects inside the containment chamber.

Specifically, the refrigerated container of this embodiment 8 implements the switching operation of the following modes at least during precooling, that is,

As shown in Figure 17 (a), in the first normal rotation mode, cool air is blown into the storage space from the air outlet 8 of the first group, and the air in the storage space is sucked from the suction port 9 of the first group,

As shown in Figure 17 (b), in the first reverse action mode, the cold air is blown into the storage space from the suction port 9 of the first group, and the air in the storage space is sucked from the air outlet 8 of the first group,

As shown in Fig. 17 (c), in the second normal rotation mode, cold air is blown from the second set of air outlets 8 into the storage space, and the air in the storage space is sucked from the second set of suction ports 9,

As shown in FIG. 17( d ), in the second reverse operation mode, cold air is blown into the storage space from the second group of suction ports 9 , and the air in the storage space is sucked from the second group of air outlets 8 .

The refrigerated container of this embodiment 8 is equipped with: a plurality of air outlets 8, a plurality of suction ports 9, a plurality of air outlet doors 21 for opening and closing the plurality of air outlets 8, and a plurality of air outlet doors 21 for opening and closing the plurality of air inlets 9. A suction inlet door 22.

Specifically, two air outlets 8, two air inlets 9, two air outlet doors 21 for independently opening and closing the two air outlets 8, and two air inlets 9 for independently opening and closing are provided in the refrigerated container. Two suction inlet doors 22 of the.

In addition, in the eighth embodiment, each outlet door 21 and each inlet door 22 are switched to open and close alternately or sequentially to switch between forward rotation and reverse rotation.

in particular,

In the first forward rotation mode, as shown in Figure 17 (a), the first set of air outlets 8 and suction ports 9 are opened, the second group of air outlets 8 and suction ports 9 are closed, and the evaporator fan 5 Forward,

In the first reverse action mode, as shown in Figure 17 (b), the first group of air outlet 8 and suction port 9 are opened, the second group of air outlet 8 and suction port 9 are closed, and the evaporator fan 5 reverse,

In the second forward rotation mode, as shown in Figure 17 (c), the blower outlet 8 and the suction inlet 9 of the second group are opened, the blower outlet 8 and the suction inlet 9 of the first group are closed, and the evaporator fan 5 Forward,

In the second reverse action mode, as shown in Figure 17 (d), the blowout port 8 and the suction port 9 of the second group are opened, the blowout port 8 and the suction port 9 of the first group are closed, and the evaporator fan 5 reverse.

By adopting this Embodiment 8, it is possible to suppress the unevenness in cooling of the contents α in a wide range in the storage space, and further shorten the precooling time.

In the above-mentioned embodiment, although the example which applied this invention to a refrigerated container was shown, it is not limited to this. As a specific example, the movement of the above-mentioned refrigerated container requires machinery such as a crane. Therefore, it is possible to provide wheels (tyres, etc.) on the frame body of the transport container 1 corresponding to the embodiment, so that it can be easily moved by traction or the like. Alternatively, the transport container 1 may be mounted on a traction carrier with wheels to facilitate movement. Thereby, the utilization range of the temperature regulation storage device of the present invention can be expanded, and the utilization rate of the temperature regulation storage device can be improved.

Alternatively, the present invention may be applied to a container mounted on a vehicle to be fixed to improve the cooling capacity of the container fixed to the vehicle.

In the above-mentioned embodiment, although the example in which the present invention is applied to the transportable frame (in the above-mentioned embodiment, the transport container 1) is shown, the present invention can also be applied to the fixed type (non-transportable container 1). type) frame. Specifically, the present invention can be applied to stationary pre-coolers and storages.

In the above-mentioned embodiment, although the example in which the blowing port 8 and the suction port 9 are arranged at the diagonal positions of the storage space is shown, it is not limited to this, and the blowing port 8 and the suction port 9 may also be provided in the storage space. on the opposite side.

In addition, at least one of the air outlet 8 or the air inlet 9 may be dispersed and arranged in a plurality of positions, thereby further suppressing uneven cooling.

In the above-mentioned embodiment 1, the air direction control part 13 is formed into one stage so that the blowing angle of the cold wind is one level. but the number of stages of the wind direction control unit 13 is not limited, it can also be 3 stages, 4 stages, ..., so that the blowing angle of the cold wind is multi-stage. In order to further suppress uneven cooling, the number of stages can be designed and determined according to the size and storage capacity of the storage object α.

In the above-mentioned embodiment, although the example in which the cold air guide passage 10 is formed by using the existing T-shaped track 11 is shown, it is also possible to not use the bottom surface of the T-shaped track 11 (concavities and convexities extending along the front-rear direction, etc.) A plate material 12 is covered thereon to form a cold wind guide passage 10 . Of course, even if there is no T-shaped track 11 on the bottom surface, and there is no corrugated plate extending in the front-back direction, a space can be formed under the board 12 to install the cold air guide passage 10 .

In the above-mentioned embodiment, although the example of refrigeration was shown as an example of adjusting the content α stored in the storage space to a desired temperature, the present invention is not limited to refrigeration, and the storage object α may be frozen. The structure may also be a structure in which the refrigerating machine 2 performs a heat pump operation to warm the contents α.

In the above-mentioned embodiment, agricultural products were shown as an example of the storage object α, but the storage object α is not limited to agricultural products, and various changes can be made.

The shade 18 shown in the above-mentioned embodiment is just an example, and the material, shape, etc. are not limited. That is, it is only necessary for the shade 18 to exhibit the function of allowing cold air to reliably reach the contents α in the storage space, and it does not need to be made of resin, for example, metal such as paper, wood, or aluminum can be used.

In the above-mentioned embodiment, although the example of implementing the switching control of forward rotation operation and reverse rotation operation during precooling is shown, it is also possible to implement forward rotation operation and reverse rotation operation in other operating states different from precooling. Toggle controls for turn actions.

In the above-mentioned embodiment, although the example in which the switching control between the forward rotation operation and the reverse rotation operation is performed based on the temperatures detected by the outlet-side temperature sensor 31a and the inlet-side temperature sensor 32a is shown, but the outlet-side temperature sensor may be omitted. The temperature sensor 31a and the inlet-side temperature sensor 32a perform switching control between forward rotation and reverse rotation based on the temperatures detected by the outlet-side cargo temperature sensor 31b and the suction-side cargo temperature sensor 32b.

In the above-mentioned embodiment, although the example in which the blowing port 8 and the suction port 9 are arranged at the diagonal positions of the storage space is shown, it is not limited to this, and the blowing port 8 and the suction port 9 may also be arranged at the opposite corners of the storage space. on the opposite side of the space.

In addition, at least one of the air outlet 8 or the air inlet 9 may be provided in plural to further suppress temperature unevenness. As a specific example, a plurality of outlets 8 and inlets 9 may be provided at different positions (for example, in the middle of the front-rear direction, in the middle of the up-down direction, etc.) A plurality of air outlets 8 and air inlets 9 are sequentially or randomly opened and closed to suppress temperature unevenness of the contents α.

In the above-mentioned embodiment, the "temperature of the storage object α" was used as the judgment condition for switching between the operation and stop of the evaporator fan 5 during defrosting, but it may be determined based on the "temperature of the refrigerant evaporator 6" during defrosting. Switch the operation and stop of the evaporator fan 5 during the frost process. That is, it may also be set that when the temperature of the refrigerant evaporator 6 detected by the evaporator temperature sensor 42 is lower than a preset fixed temperature (for example, 0° C. or a target precooling temperature, etc.), during the defrosting process In this case, the evaporator fan 5 is also operated, and when the temperature of the refrigerant evaporator 6 detected by the evaporator temperature sensor 42 rises from a fixed temperature (for example, 0° C. or a target precooling temperature, etc.), the evaporator fan 5 is stopped. .

In the above-mentioned embodiment, although the example in which the electric heater 41 is used as the defrosting part for defrosting the refrigerant evaporator 6 is shown, it is also possible to guide the hot gas (high-temperature refrigerant) to the refrigerant evaporator 6 to perform defrost. In this way, even if the technology of guiding the hot gas to the refrigerant evaporator 6 for defrosting is adopted, since the temperature of the refrigerant evaporator 6 is kept at 0° C. before the frost in the refrigerant evaporator 6 is completely melted, it is possible to obtain Same effect.

It should be noted that, in the case of defrosting by introducing hot gas to the refrigerant evaporator 6, it is not necessary to reverse the rotation of the evaporator fan 5 .

In the above-mentioned embodiment, although the example in which the switching control of the forward rotation operation and the reverse rotation operation is implemented during the pre-cooling is shown, the forward rotation operation and the reverse rotation operation may be implemented in other operating states different from the pre-cooling operation. Action toggle control.

In the above-mentioned embodiment, although the example in which the switching control between the forward rotation operation and the reverse rotation operation is performed based on the temperatures detected by the outlet-side temperature sensor 31a and the inlet-side temperature sensor 32a is shown, but the outlet-side temperature sensor may be omitted. The temperature sensor 31a and the inlet-side temperature sensor 32a perform switching control between forward rotation and reverse rotation based on the temperatures detected by the outlet-side cargo temperature sensor 31b and the suction-side cargo temperature sensor 32b.

In the above-mentioned embodiment, although the example in which the blowing port 8 and the suction port 9 are arranged at the diagonal positions of the storage space is shown, it is not limited to this, and the blowing port 8 and the suction port 9 may also be arranged at the opposite corners of the storage space. on the opposite side of the space.

In addition, a plurality of at least one of the blower port 8 and the suction port 9 may be provided so that temperature unevenness can be further suppressed. As a specific example, multiple air outlets 8 and suction ports 9 can be provided at different positions (for example, the middle part in the front-rear direction, the middle part in the up-down direction, etc.) Alternatively, a plurality of air outlets 8 and air inlets 9 are opened and closed randomly to suppress temperature unevenness of the contents α.

Although this invention was described based on an Example, it should be understood that this invention is not limited to this Example and a structure. The present invention also includes various modified examples and modifications within the equivalent range. In addition, various combinations or modes and other combinations or modes in which one element is added or subtracted based on the modes or combinations also fall within the category and scope of the present invention.

Claims (31)

1. a temperature adjustment stowage arrangement, possesses: framework (1), and it has the receiving space can accommodated stored substance (α); And refrigeration machine (2), it produces the air conditioning wind blown out to described receiving space, by the work of this refrigeration machine (2), the stored substance be contained in described receiving space (α) is adjusted to the temperature of expectation,

The feature of described temperature adjustment stowage arrangement is,

In this temperature adjustment stowage arrangement, the blow-off outlet (8) of receiving space blowout described in the air conditioning wind direction that produced by described refrigeration machine (2) is made to be arranged on the opposed position across described receiving space with the suction inlet (9) that the air made in described receiving space returns to described refrigeration machine (2).

2. temperature adjustment stowage arrangement according to claim 1, is characterized in that,

Described framework (1) can be carried.

3. temperature adjustment stowage arrangement according to claim 1 and 2, is characterized in that,

Described blow-off outlet (8) and described suction inlet (9) are arranged on the diagonal position of described receiving space.

4. temperature adjustment stowage arrangement according to claim 1 and 2, is characterized in that,

The upper surface of the multiple T word tracks (11) on the bottom surface being arranged on described framework (1) covers sheet material (12), utilizes the space between described multiple T word track (11) to be led another side from the end side of described T word track (11) by air conditioning wind.

5. temperature adjustment stowage arrangement according to claim 1 and 2, is characterized in that,

The wind direction control part (13) that the blowout angle of the above-below direction of the air conditioning wind blown out from this blow-off outlet (8) is adjusted is provided with at described blow-off outlet (8) place.

6. temperature adjustment stowage arrangement according to claim 1 and 2, is characterized in that,

The shutter (17) that the blowout angle of the left and right directions of the air conditioning wind blown out from this blow-off outlet (8) is adjusted is provided with at described blow-off outlet (8) place.

7. temperature adjustment stowage arrangement according to claim 1 and 2, is characterized in that,

Be provided with blind (18) on the top of described receiving space, this blind (18) is housed in the gap between stored substance (α) in this receiving space and the roof of this receiving space for obturation.

8. temperature adjustment stowage arrangement according to claim 1 and 2, is characterized in that,

Described refrigeration machine (2) possesses temperature sensor (7), and the temperature of the air downstream side of the heat exchanger cooling air or heat measured by this temperature sensor (7),

This temperature sensor (7) is configured near described blow-off outlet (8).

9. temperature adjustment stowage arrangement according to claim 1 and 2, is characterized in that,

Be configured with air switching swimmingly in the bight of the path described framework (1) being halfway present in the air conditioning wind being directed to described blow-off outlet (8) and regulate the dip member (19) of the flow direction of wind.

10. temperature adjustment stowage arrangement according to claim 1 and 2, is characterized in that,

When arranging described suction inlet (9) or described blow-off outlet (8) in the inboard of described receiving space,

Be provided with stop (20) in the inboard of described receiving space, this stop (20) for guaranteeing air flue between the wall of inboard being contained in the stored substance in this receiving space (α) and this receiving space.

11. temperature adjustment stowage arrangements according to claim 1 and 2, is characterized in that,

Forming each angle place of corner opposed in the described framework (1) of described receiving space, described blow-off outlet (8) and described suction inlet (9) are provided with two groups in the mode that two is a group,

When being called first group and second group by these two groups, link the described blow-off outlet (8) of described first group and the air conditioning wind of described suction inlet (9) by direction (X) and link the described blow-off outlet (8) of described second group and the air conditioning wind of described suction inlet (9) by the internal chiasma of direction (Y) at described receiving space.

12. temperature adjustment stowage arrangements according to claim 1 and 2, is characterized in that,

To be arranged in described refrigeration machine (2) and to regulate the pressure fan of wind to be the evaporator fan (5) of the axial-flow type being combined with electro-motor and propeller fan to blow out air in described receiving space,

The switching of rotating forward action and reversion action is carried out by the direction of rotation switching described evaporator fan (5).

13. temperature adjustment stowage arrangements according to claim 1 and 2, is characterized in that,

This temperature adjustment stowage arrangement possesses: multiple described blow-off outlet (8), multiple described suction inlet (9), multiple described blow-off outlet (8) carried out to multiple blow-off outlet door (21) of opening and closing and multiple described suction inlet (9) carried out to multiple suction inlet doors (22) of opening and closing

By alternately or successively carrying out to described multiple blow-off outlet door (21) and described multiple suction inlet door (22) switching that rotating forward action and reversion action are carried out in opening and closing switching.

14. 1 kinds of temperature adjustment stowage arrangements, possess: framework (1), and it has the receiving space can accommodated stored substance (α); And refrigeration machine (2), it produces the air conditioning wind blown out to described receiving space,

By the work of described refrigeration machine (2), the stored substance be contained in described receiving space (α) is adjusted to the temperature of expectation,

The feature of described temperature adjustment stowage arrangement is,

This temperature adjustment stowage arrangement possesses the blow-off outlet (8) of receiving space blowout described in the air conditioning wind direction that makes to be produced by described refrigeration machine (2) and makes the air in described receiving space return the suction inlet (9) of described refrigeration machine (2)

This temperature adjustment stowage arrangement also possesses positive and negative switching part, and this positive and negative switching part alternately switches rotating forward action and reversion action,

In described rotating forward action, the air conditioning wind produced by described refrigeration machine (2) is blown out from described blow-off outlet (8), and make the air in described receiving space return described refrigeration machine (2) from described suction inlet (9)

In described reversion action, make the air conditioning wind produced by described refrigeration machine (2) from described suction inlet (9) blowout, and make the air in described receiving space return described refrigeration machine (2) from described blow-off outlet (8).

15. temperature adjustment stowage arrangements according to claim 14, is characterized in that,

This temperature adjustment stowage arrangement possesses:

Blow-off outlet side temperature sensor (31a, 31b), the temperature of the stored substance (α) at the position that the air conditioning wind that its temperature or be configured at detecting the air conditioning wind blown out from described blow-off outlet (8) when described rotating forward action directly or indirectly blows out from described blow-off outlet (8) when described rotating forward action contacts at first;

Suction inlet side temperature sensor (32a, 32b), the temperature of the stored substance (α) at the position that the air conditioning wind that its temperature or be configured at detecting the air conditioning wind blown out from described suction inlet (9) when described reversion action directly or indirectly blows out from described suction inlet (9) when described reversion action contacts at first; And

Control device, its detected temperatures based on described blow-off outlet side temperature sensor (31a, 31b) and described suction inlet side temperature sensor (32a, 32b) and perform the switching of described rotating forward action and described reversion action.

16. temperature adjustment stowage arrangements according to claim 15, is characterized in that,

Described control device is set as, when carrying out the stored substance be contained in described receiving space (α) to be cooled to the precooling in the temperature range of regulation, the refrigerating mode alternately switching and rotate forward maximum refrigeration running and maximum refrigeration running of reversing can be performed

In the maximum refrigeration running of described rotating forward, perform described rotating forward action and make described refrigeration machine (2) with maximum capacity running, until the detected temperatures of described blow-off outlet side temperature sensor (31a, 31b) is reduced to target temperature,

In the maximum refrigeration running of described reversion, perform described reversion action and make described refrigeration machine (2) with maximum capacity running, until the detected temperatures of described suction inlet side temperature sensor (32a, 32b) is reduced to target temperature.

17., according to claim 14 to the temperature adjustment stowage arrangement according to any one of 16, is characterized in that,

Described blow-off outlet (8) and described suction inlet (9) are arranged on the opposed position across described receiving space.

18. temperature adjustment stowage arrangements according to claim 17, is characterized in that,

Forming each angle place of corner opposed in the described framework (1) of described receiving space, described blow-off outlet (8) and described suction inlet (9) are provided with two groups in the mode that two is a group,

When being called first group and second group by these two groups, link the described blow-off outlet (8) of described first group and the air conditioning wind of described suction inlet (9) by direction (X) and link the described blow-off outlet (8) of described second group and the air conditioning wind of described suction inlet (9) by the internal chiasma of direction (Y) at described receiving space.

19., according to claim 14 to the temperature adjustment stowage arrangement according to any one of 16, is characterized in that,

To be arranged in described refrigeration machine (2) and to regulate the pressure fan of wind to be the evaporator fan (5) of the axial-flow type being combined with electro-motor and propeller fan to blow out air in described receiving space,

The switching of described rotating forward action and described reversion action is carried out by the direction of rotation switching described evaporator fan (5).

20., according to claim 14 to the temperature adjustment stowage arrangement according to any one of 16, is characterized in that,

This temperature adjustment stowage arrangement possesses: multiple described blow-off outlet (8), multiple described suction inlet (9), multiple described blow-off outlet (8) carried out to multiple blow-off outlet door (21) of opening and closing and multiple described suction inlet (9) carried out to multiple suction inlet doors (22) of opening and closing

By alternately or successively carrying out to described multiple blow-off outlet door (21) and described multiple suction inlet door (22) switching that described rotating forward action and described reversion action are carried out in opening and closing switching.

21. 1 kinds of temperature adjustment stowage arrangements, possess: framework (1), and it has the receiving space can accommodated stored substance (α); And refrigeration machine (2), it has the refrigerant evaporator (6) of Air flow,

The feature of described temperature adjustment stowage arrangement is,

This temperature adjustment stowage arrangement possesses the control device of the evaporator temperature sensor (42) of the temperature detecting described refrigerant evaporator (6) directly or indirectly and the operating condition of the described refrigeration machine of control (2),

When carrying out the defrosting of described refrigerant evaporator (6),

In the temperature of the described refrigerant evaporator (6) that described evaporator temperature sensor (42) detects lower than pre-set fixed temperature or when being contained in the temperature of the stored substance (α) in described receiving space, described control device makes the air after by described refrigerant evaporator (6) blow out to described receiving space

In the temperature of the described refrigerant evaporator (6) that described evaporator temperature sensor (42) detects higher than pre-set fixed temperature or when being contained in the temperature of the stored substance (α) in described receiving space, described control device stops the air after by described refrigerant evaporator (6) is blown out to described receiving space.

22. temperature adjustment stowage arrangements according to claim 21, is characterized in that,

This temperature adjustment stowage arrangement possesses the electric heater (41) generated heat by being energized in the bottom of described refrigerant evaporator (6),

When carrying out the defrosting of described refrigerant evaporator (6), described control device makes described electric heater (41) generate heat, and utilizes the heat of described electric heater (41) to melt the frost condensed on described refrigerant evaporator (6).

23. temperature adjustment stowage arrangements according to claim 22, is characterized in that,

When carrying out the defrosting of described refrigerant evaporator (6), and in the temperature of the described refrigerant evaporator (6) that described evaporator temperature sensor (42) detects lower than pre-set fixed temperature or when being contained in the temperature of the stored substance (α) in described receiving space, described control device makes to be blown out to described receiving space by the air after described refrigerant evaporator (6) upward from below.

24. temperature adjustment stowage arrangements according to claim 23, is characterized in that,

Described refrigeration machine (2) possesses the evaporator fan (5) that the air after by described refrigerant evaporator (6) is blown out to described receiving space,

This evaporator fan (5) is the electric fan of the axial-flow type being combined with electro-motor and propeller fan,

When carrying out the defrosting of described refrigerant evaporator (6), and in the temperature of the described refrigerant evaporator (6) that described evaporator temperature sensor (42) detects lower than pre-set fixed temperature or when being contained in the temperature of the stored substance (α) in described receiving space, described control device makes to be blown out to described receiving space by the air after described refrigerant evaporator (6) upward from below by making described evaporator fan (5) reverse.

25. temperature adjustment stowage arrangements according to any one of claim 21 to 24, is characterized in that,

This temperature adjustment stowage arrangement possesses the blow-off outlet (8) of receiving space blowout described in the air conditioning wind direction that makes to be produced by described refrigeration machine (2) and makes the air in described receiving space return the suction inlet (9) of described refrigeration machine (2)

Described blow-off outlet (8) and described suction inlet (9) are arranged on the opposed position across described receiving space.

26. temperature adjustment stowage arrangements according to claim 25, is characterized in that,

This temperature adjustment stowage arrangement possesses positive and negative switching part, and this positive and negative switching part alternately switches rotating forward action and reversion action,

In described rotating forward action, the air conditioning wind produced by described refrigeration machine (2) is blown out from described blow-off outlet (8), and make the air in described receiving space return described refrigeration machine (2) from described suction inlet (9)

In described reversion action, make the air conditioning wind produced by described refrigeration machine (2) from described suction inlet (9) blowout, and make the air in described receiving space return described refrigeration machine (2) from described blow-off outlet (8).

27. temperature adjustment stowage arrangements according to claim 26, is characterized in that,

This temperature adjustment stowage arrangement possesses:

Blow-off outlet side temperature sensor (31a, 31b), the temperature of the stored substance (α) at the position that the air conditioning wind that its temperature or be configured at detecting the air conditioning wind blown out from described blow-off outlet (8) when described rotating forward action directly or indirectly blows out from described blow-off outlet (8) when described rotating forward action contacts at first;

Suction inlet side temperature sensor (32a, 32b), the temperature of the stored substance (α) at the position that the air conditioning wind that its temperature or be configured at detecting the air conditioning wind blown out from described suction inlet (9) when described reversion action directly or indirectly blows out from described suction inlet (9) when described reversion action contacts at first; And

Control device, its detected temperatures based on described blow-off outlet side temperature sensor (31a, 31b) and described suction inlet side temperature sensor (32a, 32b) and perform the switching of described rotating forward action and described reversion action.

28. temperature adjustment stowage arrangements according to claim 27, is characterized in that,

Described control device is set as, when carrying out the stored substance be contained in described receiving space (α) to be cooled to the precooling in the temperature range of regulation, the refrigerating mode alternately switching and rotate forward maximum refrigeration running and maximum refrigeration running of reversing can be performed

In the maximum refrigeration running of described rotating forward, perform described rotating forward action and make described refrigeration machine (2) with maximum capacity running, until the detected temperatures of described blow-off outlet side temperature sensor (31a, 31b) is reduced to target temperature,

In the maximum refrigeration running of described reversion, perform described reversion action and make described refrigeration machine (2) with maximum capacity running, until the detected temperatures of described suction inlet side temperature sensor (32a, 32b) is reduced to target temperature.

29. temperature adjustment stowage arrangements according to claim 25, is characterized in that,

Forming each angle place of corner opposed in the described framework (1) of described receiving space, described blow-off outlet (8) and described suction inlet (9) are provided with two groups in the mode that two is a group,

When being called first group and second group by these two groups, link the described blow-off outlet (8) of described first group and the air conditioning wind of described suction inlet (9) by direction (X) and link the described blow-off outlet (8) of described second group and the air conditioning wind of described suction inlet (9) by the internal chiasma of direction (Y) at described receiving space.

30. temperature adjustment stowage arrangements according to claim 26, is characterized in that,

To be arranged in described refrigeration machine (2) and to regulate the pressure fan of wind to be the evaporator fan (5) of the axial-flow type being combined with electro-motor and propeller fan to blow out air in described receiving space,

The switching of described rotating forward action and described reversion action is carried out by the direction of rotation switching described evaporator fan (5).

31. temperature adjustment stowage arrangements according to claim 26, is characterized in that,

This temperature adjustment stowage arrangement possesses: multiple described blow-off outlet (8), multiple described suction inlet (9), multiple described blow-off outlet (8) carried out to multiple blow-off outlet door (21) of opening and closing and multiple described suction inlet (9) carried out to multiple suction inlet doors (22) of opening and closing

By alternately or successively carrying out to described multiple blow-off outlet door (21) and described multiple suction inlet door (22) switching that described rotating forward action and described reversion action are carried out in opening and closing switching.