CN1229613C - refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator. The refrigerator provided by the invention has the advantages of increased effective volume, less power consumption and convenience in use. The refrigerator comprises a refrigerating chamber, a freezing chamber located below the refrigerating chamber, an evaporator, a blower for blowing cooling air heat-exchanged with the evaporator, a damper device for the airflow regulator for the freezing chamber for controlling the blowing of the cooling air to the freezing chamber, and a damper device for the refrigerating chamber for controlling the blowing of the cooling air to the refrigerating chamber; the suction port of the cooling air of the air flow regulator device for the freezing chamber is not overlapped with the blower and is positioned below the rotation central shaft of the blower.

Description

refrigerator

technical field

The invention relates to a refrigerator.

technical background

In the existing refrigerator, for example, when the operation of the compressor is stopped, the air damper device for the freezer is opened, and the frost attached to the evaporator is sublimated by the operation of the blower, and at the same time, air is sent to the refrigerator to improve the temperature of the refrigerator. Humidity, so as to keep vegetables and other food moisture to keep fresh refrigerator.

In this existing refrigerator, the air damper device used in the refrigerator compartment is arranged on the place ahead of the air blower (the depth direction of the refrigerator compartment), and the cooling air is blown into the entire freezer compartment. Such a refrigerator is described in, for example, JP-A-2001-241825.

However, in the above-mentioned conventional refrigerator, since the damper device for the freezer compartment is arranged in front of the air blower, the depth direction of the freezer compartment becomes larger, and the indoor storage volume of the freezer compartment becomes smaller. In addition, in conventional refrigerators, due to increased air resistance, there is a possibility that the amount of air sent to the freezer compartment may decrease. In addition, there is also a problem with existing refrigerators. Since the air damper device for controlling the air circulation in the freezer is located in front of the blower, in order to lift the cold air that is cooled by the evaporator and becomes heavier than before cooling, it is located at the specific air flow adjustment. If the air damper is higher than the air damper of the air damper, the suction port of the air damper needs to be blown. Therefore, the blower consumes excess energy only for this, resulting in an increase in power consumption.

Contents of the invention

A first object of the present invention is to provide a refrigerator that prevents the storage capacity of the freezer from being reduced and reduces the pressure loss of the blower to reduce power consumption.

In addition, the above-mentioned conventional refrigerator is configured to blow cooling air to the entire freezer compartment, so when the indoor volume of the freezer compartment becomes larger, it becomes difficult to shorten the ice-making time and freeze food in a short time. A second object of the present invention is to provide a system that can make ice or partially freeze food in a short time by sending cold cooling air to the ice maker or the quick freezing part concentratedly when making ice or partially freeze food. refrigerator.

In addition, when the indoor volume of the freezing room becomes larger, in order to make the temperature distribution in the freezing room uniform, it can be solved by setting a plurality of cold air outlets for sending cold air into the freezing room. The effective volume inside the freezer becomes smaller.

In addition, the cold air sent from the cold air outlet far away from the blower (the cold air outlet downstream of the plurality of cold air outlets) has a reduced flow rate due to passage resistance and a slower delivery flow rate, so even if multiple cold air outlets are installed , there is also the possibility that the temperature distribution in the freezer is not very uniform.

The third object of the present invention is to provide a method that can suppress the reduction of the effective volume in the freezing chamber when a plurality of cold air outlets are provided, so that the flow rate of the downstream cold air outlet is almost the same as that of the upstream cold air outlet. This achieves an even temperature distribution in the freezer compartment of the refrigerator.

In addition, if the damper device is provided, the volume of the damper device or the volume of the drive unit for driving the damper becomes an ineffective space in the refrigerator, resulting in a problem that the effective volume decreases. Therefore, a fourth object of the present invention is to provide a refrigerator capable of increasing the effective volume without disposing the damper device or the driving unit for driving the damper without reducing the effective volume.

That is, the purpose of the present invention is to provide a high-quality refrigerator that increases the effective volume in the refrigerator, reduces power consumption, and is convenient to use.

The above-mentioned first object is achieved in the following manner, that is, the refrigerator of the present invention has a refrigerating room, a freezing room below the refrigerating room, an evaporator, and a fan for blowing the cooling air after heat exchange with the evaporator. A blower, an air conditioner device for a freezer that controls the cooling air sent to the freezer, an air regulator device for a refrigerator that controls the cooling air that is sent to the freezer; the air conditioner for the freezer The cooling air inlet of the device does not overlap with the air blower, but is located below the rotation central axis of the air blower.

That is, the refrigerator with the above-mentioned structure suppresses the effective volume of the freezing compartment from becoming smaller, and does not need to use a blower to lift heavy cold air above the blower, thereby reducing the pressure loss of the blower and reducing power consumption.

The above-mentioned second object is achieved in the following manner, that is, the freezer compartment of the refrigerator of the present invention is provided with a partition that divides the freezer compartment into left and right when viewed from the front of the freezer compartment, and on either side of the freezer compartment divided by the compartment The uppermost part is provided with an ice-making compartment or a quick-freezing compartment; and the air-regulator device for the freezing compartment is an air-regulator device for the freezing compartment that controls the air supply to the above-mentioned ice-making compartment or the quick-freezing compartment.

In the refrigerator with this structure, the cold air cooled by the evaporator is concentratedly blown to the ice making chamber or the quick freezing chamber, which can make ice or partially freeze food in a short time.

In addition, the second object can also be achieved in the following another way, that is, the freezer compartment of the refrigerator of the present invention is provided with a partition that divides the freezer compartment into left and right from the front of the freezer compartment, and the freezer compartment divided by this compartment The uppermost part of either side of the left and right is provided with an ice-making chamber, and the uppermost part of the freezing chamber on the other side is provided with a quick-freezing chamber; And the air regulator device for controlling the air supply to the fast freezing chamber. In the refrigerator having such a structure, by arranging the air damper devices side by side in the left and right directions, the distance from the blower to any air damper device in the ice-making compartment or the quick-freezing compartment arranged at the top of the freezing compartment can be shortened, and the The cooling air from the blower is supplied concentratedly over a short distance, enabling freezing in a shorter time.

In addition, the second purpose can also be achieved in other ways, that is, the refrigerator of the present invention has a refrigerator compartment, a freezer compartment, an evaporator for cooling the air in the refrigerator, and a blower for blowing the cooled air after heat exchange with the evaporator. . A damper device for the refrigerating room that controls the amount of cooling air sent to the refrigerating room, and a damper device for the freezing room that controls the amount of cooling air sent to the refrigerating room; It has an ice-making compartment or a quick-freezing compartment, and a cold air introduction part for introducing cooling air whose air volume is adjusted by the air damper device for the freezing compartment; the front end of the damper of the damper device for the freezing compartment is at Stop at an angle opposite to the cold air introduction part.

That is to say, in this type of refrigerator, when making ice or partially freezing food, the front end of the air damper is made to face the front end of the cold air introduction part of the cooling air, and a large amount of cooling air is blown out intensively through the suction port of the air damper device. Air, which can make ice or freeze in a short time.

Furthermore, the second object is to make the suction port of the cooling air of the air damper device for the freezer below the rotation center axis of the blower, so that the heavy cooling air cooled by the evaporator can be lifted without using the blower, so that it can be smoothly blown. wind.

The above-mentioned third object is to provide the freezer with several storage containers, introduce the cooling air from the air damper device into the storage container or the cold air introduction part inside the storage container, and connect the air damper device and the Between the cold air introduction parts, the cross-sectional area of the passage is reduced as the cold air flows downstream.

That is, in the refrigerator having such a structure, since the inside of the cold air delivery passage becomes narrow as it flows downstream, the flow velocity in the cold air delivery passage is prevented from decreasing, and in order to provide a flow velocity for containers or shelves in which stored food is placed in each stage, For the inflow of fast wind, a cold air introduction part is provided for introducing cooling air in each container or each storage space, and the branch cold air sending passage that the air volume is reduced is narrowed in the scope of the cold air introduction part. In this way, a decrease in the flow velocity of the cooling air can be suppressed. Therefore, the cold air sending passage is narrowed, the depth of the freezer compartment can be enlarged, and the effective volume can be increased.

The fourth object is achieved in the following manner, that is, the refrigerator of the present invention has a refrigerating room, a freezing room, an evaporator for cooling the air in the refrigerator, a blower for blowing the cooling air after heat exchange with the evaporator, and a control to the above-mentioned A damper device for the refrigerator compartment for controlling the air supply volume of the cooling air sent from the refrigerator compartment, and an air regulator device for the freezer compartment to control the air supply volume of the cooling air sent to the freezer compartment; The freezer compartment is divided into left and right intervals in a frontal view; a part of the air conditioner device for the freezer compartment, a part of the driving part of the damper device for the freezer unit, or all of the drive unit for the damper device for the freezer compartment are arranged on the above-mentioned Inside the projected space viewed from the front of the partitioned freezer.

That is, the effective volume can be increased by disposing the damper device or the drive unit for driving the damper device within the projected area of the spacer that does not reduce the effective volume.

Description of drawings

Fig. 1 is a diagram showing an arrangement of a damper device for each compartment of a refrigerator according to an embodiment of the present invention.

Fig. 2 is a front view showing an open door of a freezer compartment of a refrigerator according to an embodiment of the present invention.

Fig. 3 is a longitudinal sectional view showing a storage part of the damper unit for the quick-freezing corner of the refrigerator according to an embodiment of the present invention.

Fig. 4 is a longitudinal sectional view of a refrigerator showing an embodiment of the present invention.

Fig. 5 is a front view of main parts showing the compartments and the positions where the driving parts of the damper devices are installed according to the embodiment of the present invention.

Fig. 6 is a cross-sectional view showing a main part of a through-hole provided in a medial partition in a freezer compartment according to an embodiment of the present invention.

Fig. 7 is a longitudinal sectional view showing a main part of a freezer compartment according to an embodiment of the present invention, in which a through-hole is provided in a medial partition.

Detailed ways

The embodiments shown in the drawings will be described in detail below. Fig. 1 is a front view showing the main part of the arrangement of a damper device for a refrigerator according to a first embodiment of the present invention. Fig. 2 is a front view of the freezer door of the refrigerator in the first and second embodiments of the present invention in an open state. Fig. 3a is a sectional view taken along line IIIa-IIIa of Fig. 1, showing the structure around the second damper device for the freezer. Fig. 3b is a cross-sectional view taken along line IIIb-IIIb of Fig. 1, showing the structure around the third damper device arranged on the upstream side of the ice making compartment. Fig. 4 is a longitudinal sectional view showing the relationship between the first and second damper devices and the like shown in Fig. 1 . Fig. 5 is a schematic front view showing the relationship between the partition members and the driving parts of the damper devices in the refrigerator according to the second embodiment of the present invention. Fig. 6 is a longitudinal sectional view of the main part of the through-hole provided in the vertical partition member of the freezer compartment divided into the left and right regions common to the first and second embodiments.

In each figure, there are mainly a refrigerator 1, a refrigerator compartment 2, a right freezer compartment 3, a left freezer compartment 4, an air damper device 5 (first damper device) for the refrigerator compartment, and an air damper device for the freezer compartment. Device 6 (the second damper device) controls the amount of cooling air sent to the quick-freezing angle 17 above the right side freezer compartment 3 . 6a is a suction port of the damper device 6 for freezer compartments, and 6b is a damper. The amount of cooling air sent to the ice-making angle 18 located above the freezer compartment 4 is mainly controlled by the damper device 7 for the freezer compartment (third damper device). 7a is the suction port of the damper device for freezers, and 7b is the damper. In addition, the damper devices 6 and 7 control the temperature of each freezer compartment according to the operation of the temperature sensor provided in the freezer compartment and the indication of the temperature control panel (not shown) provided on the door.

8 is an evaporator, 9 is a blower for circulating cooling air, 10 is a cold air path for a refrigerator, 11 is a cold air return path for a refrigerator, 12 is a cold air return path for a freezer, 13 is a vegetable room, and 14 is a freezer compartment. 15 is a sensor for detecting the temperature of the freezer, 16 is a transverse partition member, 17 is a quick freezing corner, 18 is an ice maker corner, and 19 is a food storage container in the freezer. 20 is a pressure chamber, and the vane 9a of the air blower 9 is housed in the pressure chamber 20, and the cooling air suction ports of the above-mentioned respective damper devices 5, 6 and 7 are opened to form openings. 21 and 23 are cold air sending passages, 21a and 23a are cold air introduction parts, which are formed integrally with the cold air sending passage 21 or 23 so as to efficiently introduce the cold air flowing through the cold air sending passage 21 or 23 . 22 and 24 are cold air delivery outlets, and 25 is a compressor.

As shown in FIG. 2 , the refrigerator 1 according to the embodiment of the present invention has a refrigerating chamber 2 on the top, a vegetable chamber 13 and a freezing chamber. The freezer compartment is divided into a right freezer compartment 3 and a left freezer compartment 4, in which several freezer food storage containers 19 are arranged. In addition, a quick freezing corner 17 is provided at the uppermost stage of the right freezer compartment 3 , and an ice maker corner 18 is provided at the uppermost stage of the left freezer compartment 4 . In addition, a horizontal partition member 16 made of a heat insulating material is provided between the vegetable compartment 13 and the freezer compartment, which have a large temperature difference in the refrigerator.

Fig. 1 is a front view showing the main part of the arrangement of the damper unit of the refrigerator shown in the first embodiment. There are damper devices 6 and 7 for freezing chambers downward from the rotation center shaft of blower 9 having blade 9a. The cooling air cooled by the evaporator 8 is rotated by the blower 9, passes through the cold air delivery passages 21, 23, and flows into the freezer compartment. The air after cooling the freezer compartment flows in from the cool air return path 12 for the freezer compartment, is cooled by the evaporator 8 again, and circulates. Moreover, damper device 5 for refrigerator compartments supplies cooling air to refrigerator compartment 2 and vegetable compartment 13 (see FIG. 2 ) provided above the freezer compartment.

When fast ice making is performed in such a refrigerator, the air damper device 5 for the refrigerating room is closed so that the high-temperature cooling air in the refrigerating room 2 does not circulate, and at the same time, the air damper for delivering the cooling air to the quick freezing corner 17 is also closed. unit, open only the damper unit that delivers cooling air to the ice maker corner 18. In this way, the cooling air of about -27°C cooled by the evaporator 8 is directly and concentratedly blown to the ice maker 18a, so the surface heat transfer rate of the ice maker 18a is increased, heat is quickly acquired, and the ice making time is shortened. Equally, when wanting quick-freezing stored goods, close refrigerating room with air conditioner device 5 and freezer with air conditioner device 7, open the freezer room with air conditioner device 6 that delivers cooling air to quick-freezing corner 17, can Shorten the time of partial refrigeration and make frozen food in a short time.

In addition, by setting the cooling air inlets of the air conditioner devices 6 and 7 for the freezer below the center of the vane 9a of the blower 9 as shown in FIGS. The heavier air is blown to the top, which can provide a refrigerator that reduces the pressure loss of the blower 9 without requiring energy and reduces power consumption. In addition, since the cooling air suction port of the damper device 6 for the freezer does not overlap with the blower 9, the depth of the freezer only in this part can be suppressed from being reduced, thereby suppressing the storage capacity of the freezer from being reduced.

In addition, the refrigerator shown in Fig. 1 is respectively designed with an air damper device independently adjusting the flow of cold air to the quick freezing angle 17 and the ice maker angle 18, since the air damper device is arranged side by side in the left and right direction, it can shorten The distance from the blower 9 to the uppermost quick-freezing corner 17 or the icemaker corner 18 of any air regulator device arranged in the freezer compartment can also provide the cooling air from the blower 9 to any corner with a short distance. The upper part, so that ice or partial freezing of food can be made in a shorter time.

The damper device 6 for the freezer will be described in detail with reference to Fig. 3a. During quick freezing, the air damper 6b is close to the cold air introduction part 21a that introduces cooling air to the quick freezing corner 17, and is located at a position opposite to the front end of the cold air introduction part 21a. In addition, the positional relationship between the cold air introduction part 21a and the damper device 6 for the freezer is that the fulcrum of the damper 6b is arranged on the upper air head, and by selecting the opening degree of the damper 6b of the damper device 6 for the freezer, For example, in the embodiment, the opening degree of the air damper 6b is about 45° at the position inclined downward, the middle air damper 6b is close to the cold air introduction plate 21a, and is opposite to the front end of the air damper 6b, and the air flow into the freezer compartment is used. Almost all the cooling air from the suction port 6 a of the regulator device 6 passes through the cold air introduction part 21 a and is sent out to the quick freezing corner 17 from the cold air delivery port 22 .

The damper device 7 for the freezer will be described in detail with reference to FIG. 3b. During quick freezing, the damper 7b is close to the cold air introduction part 23a for introducing cooling air to the ice maker 18a, and is located at a position opposite to the front end of the cold air introduction part 23a. In addition, the positional relationship between the cold air introduction part 23a and the air conditioner device for the freezer is that the fulcrum of the air conditioner 7b is arranged on the upper air head, and by selecting the opening degree of the air conditioner 7, the air conditioner device for entering the freezer is Almost all of the cooling air from the suction port 7a of 7 passes through the cold air introduction part 23a, and is sent out to the ice maker corner 18 from the cold air delivery port 24. In this way, there is an ice maker corner 18 or a quick-freezing corner 17 disposed in the freezer compartment and a cold air introduction part 21a or 23a for introducing cooling air from the damper device for the freezer compartment, and the damper devices 6 and 7 for the freezer compartment adjust The air supply to the ice maker corner 18 or the quick freezing corner 17 can adjust or select the opening and closing angles of the air dampers 6b and 7b of the air damper devices 6 and 7 for the freezing chamber, through which the front ends of these air dampers face And close to the front end of the cold air introduction part 21a or 23a, adjust or select the opening and closing angle, when making ice or partially freezing food, make the front end of the air damper relative to the front end of the cold air introduction part of the above-mentioned cooling air, pass through the air damper A large amount of cooling air from the suction port is blown out intensively, so that ice or freezing can be made in a short time.

Fig. 4 is a longitudinal sectional view of the refrigerator showing the positional relationship between the damper device for the refrigerator compartment and the damper device for the freezer compartment. In each freezer food storage container 19 of the freezer compartment 3 on the right side below the quick freezing corner 17, when the cooling air of the fast flow rate is sent in, the freezer compartment air regulator 6 is fully opened to prevent the freezer compartment from using the freezer compartment food storage container 19. The cold air delivery passage 21 connected to the lower side of the cross section of the passage 21 that flows downstream is narrowed, so that the wind speed in the cold air delivery passage 21 is reduced. That is, in each freezer food storage container 19, in order to make fast cooling air flow in, a cold air introduction part 21a for cooling air is provided on each cold air delivery port 22 of each freezer food storage container to the cold air delivery passage 21, And the branch passage for reducing the air volume is narrowed within the range of each cold air introduction portion 21a. In addition, as the cold air sending passage 21 extends downward, the narrowed right freezer compartment is expanded, the effective volume is increased, and the volume of the container is also increased.

Fig. 5 shows a second embodiment of the present invention, and is a schematic front view showing the relationship between each partition member of the refrigerator and each damper device driving unit. The driving parts of the respective damper devices 5, 6 and 7 are disposed between the horizontal partition member 16 that divides the refrigerator compartment 2 and the vegetable compartment 13, and the vertical partition member 14 for the freezer compartment that divides the right freezer compartment 3 and the left freezer compartment 4. , in the projected area when viewing the refrigerator 1 from the front, as shown in FIG. The effective volume can be increased.

As shown in FIGS. 6 and 7 , the freezer compartment vertical partition member 14 has a through hole 14 a having a temperature measuring sensor 15 for controlling the temperature inside the freezer compartment. Because the sensor 15 is arranged in the through hole 14a, it can be used for the left and right freezer compartments, which can reduce the number of components, thereby reducing the cost, and simultaneously make the temperatures of the left and right freezer compartments uniform.

Owing to having configured the freezer air damper 6 of the cooling priority of the quick-freezing angle 17 shown in Figure 3 a and the freezer air damper device 7 of the cooling priority of the ice maker as shown in Figure 3 b, in each air flow The ice maker corner 18 and the quick freezing corner 17 are arranged under the regulator unit, and since the passages are connected with the shortest simple structure, an assembly that can be easily produced in a short time can provide an inexpensive refrigerator.

As can be seen from the above detailed description, according to each embodiment, by opening the air damper device of the room to be cooled quickly and closing the air damper device of other parts, since the cooling air is sent out intensively, the air volume can be increased and the surface heat transfer The higher the rate, the faster the cooling, the shorter the ice making time, and the shorter the local cooling time. By shortening the local cooling time, food can be cooled in a more delicious state than conventional refrigerators, and the storage time can be extended.

In addition, the air damper device that controls the cooling air sent to the quick freezing corner or the ice maker corner is installed below the center of the blower blade, so that the heavy cooling air cooled by the evaporator does not need to be lifted by the blower, but flows smoothly to the freezer. room, the blower does not need to consume this part of energy, which can save electricity.

The passage through which the cooling air flows, because the section of the passage becomes smaller as it flows downstream, so that the cooling air can be sent to each freezer food storage container or shelf grid without reducing the wind speed, and each container can be evenly cooled.

The driving unit of the damper device for increasing and decreasing the air volume sent to each room is arranged in the projection plane of the partition member of each room of the refrigerator, or the driving unit of the damper device prior to the ice maker is viewed from the front of the refrigerator, Since it is arranged within the projected area of the ice maker, it is possible to prevent the drive unit of the damper device from reducing the space in the freezer compartment, thereby increasing the effective volume of the part of the freezer compartment.

According to the present invention, it is possible to provide a high-quality refrigerator that has an increased effective volume inside the refrigerator, reduces power consumption, and is easy to use.

Claims (4)

1. A refrigerator, characterized in that it has a refrigerating chamber, a freezing chamber positioned below the refrigerating chamber, an evaporator, a blower that blows the cooling air after heat exchange with the evaporator, and controls the cooling of the evaporator. An air regulator device for a freezer that sends air to the freezer, and an air regulator device for a refrigerator that controls the sent cooling air to send air to the refrigerator; The air inlet does not overlap with the air blower, but is located below the rotation central axis of the air blower. 2. The refrigerator according to claim 1, wherein the freezer compartment is provided with a partition that divides the freezer compartment into left and right when viewed from the front of the freezer compartment, and the uppermost portion on either side of the freezer compartment divided by this compartment is An ice-making compartment or a quick-freezing compartment is provided; and the air regulator device for the freezing compartment is an air-regulator device for the freezing compartment that controls air supply to the ice-making compartment or the quick-freezing compartment. 3. The refrigerator according to claim 1, wherein the freezer compartment has a partition that divides the freezer compartment into left and right when viewed from the front of the freezer compartment, and the uppermost portion on either side of the freezer compartment divided by this compartment is An ice-making chamber is provided, and a quick-freezing chamber is arranged on the top of the freezing chamber on the other side; Airflow regulator device for room air supply. 4. The refrigerator according to any one of claims 1 to 3, wherein the freezer compartment has a plurality of storage containers, and a cold air introduction part for introducing cooling air from the air damper device into the storage containers or inside the storage containers , and a cold air discharge channel that connects the air damper device and the cold air introduction part, and makes the cross-sectional area in the passage smaller as it flows downstream.

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