JP2018048776A - Storage cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storage cabinet capable of stabilizing temperature and humidity inside a cabinet in the case of dehumidifying the inside of the cabinet while performing temperature control.SOLUTION: A storage cabinet 1A includes a temperature adjustment cabinet 2A with a cooling unit 23 mounted, and a humidity adjustment cabinet 3A with a dehumidity unit 33 mounted, and arranged in the temperature adjustment cabinet 2A, and a heat conductive material having moisture proofness is used as a wall material of the humidity adjustment cabinet 3A. Cool air in the cabinet 20 of the temperature adjustment cabinet 2A can be transmitted into the humidity adjustment cabinet 3A by the thermal conductivity of the wall material of the humidity adjustment cabinet 3A. Although the inside of the cabinet 20 of the temperature adjustment cabinet 2A is greatly subjected to humidity fluctuation due to gradual temperature fluctuation by temperature control, the inside 30 of the humidity adjustment cabinet 3A can be dehumidified by the dehumidity unit 33 due to the moisture proofness of the wall material without being affected by the humidity fluctuation. Thus, the temperature inside the cabinet and the humidity inside the cabinet of the humidity adjustment cabinet 3A can be stabilized.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a storage that stably dehumidifies while controlling the temperature inside the storage.

  2. Description of the Related Art Conventionally, a humidity control chamber including a dehumidification unit that dehumidifies the inside of a storage for storing stored items such as precision equipment, food, and chemicals is known (for example, Patent Document 1). A dehumidifying unit used in this type of humidity control chamber includes a drying device, and a shutter for selectively performing air circulation between the drying device and the inside of the cabinet, and air circulation between the drying device and the outside of the cabinet. . The drying device includes a desiccant that can be heated and regenerated, such as a spherical shape and a pellet shape, filled in the drying device, and a desiccant heater that heats and regenerates the desiccant. The dehumidifying unit circulates air between the inside of the drying device and the inside of the cabinet using a shutter, and the desiccant filled in the drying device adsorbs moisture in the air to dehumidify the air inside the cabinet. In addition, air is circulated between the inside of the drying device and the outside by the shutter, and the desiccant that has absorbed moisture is operated by operating the heater for the desiccant, so that the moisture accumulated in the desiccant is periodically removed outside the warehouse. Release and regenerate the drying capacity of the desiccant.

JP 2013-134034 A

  By the way, depending on the storage product, it is necessary to perform temperature management in addition to humidity management. However, when adding a cooling unit composed of, for example, a copressor, a condenser, an expansion valve, and an evaporator to the conventional humidity control chamber, and dehumidifying the interior while cooling the interior temperature to the target temperature, The following problems occur.

  That is, since temperature and humidity have a correlation, humidity also varies in conjunction with temperature. Here, the cooling unit operates when it is higher than the target temperature, stops when it is lower, and repeats operation and stop in small increments, so that the internal temperature fluctuates around the target temperature in small increments. In conjunction with this small change in temperature, the humidity also fluctuates little by little. Moreover, in the defrosting process for removing frost generated during cooling in the cabinet, the cooling unit is stopped and the heater is operated as necessary. The frost adhering to the water melts, and this moisture temporarily increases the humidity. The dehumidifying unit cannot follow these small and large fluctuations and temporary increases in humidity, and the humidity in the cabinet is not stable.

  This invention is made | formed in view of the said situation, The objective is to provide the storage which can stabilize the temperature and humidity in a store | warehouse | chamber, when dehumidifying it while controlling the temperature in the store | warehouse | chamber. is there.

  In order to solve the above-described problem, one aspect of the present invention is a dual structure system in which a humidity control chamber equipped with a dehumidifying unit is installed in a temperature control cabinet equipped with a cooling unit, and a humidity control cabinet By using a heat-conducting material that is moisture-proof for the wall material, it is possible to prevent cold fluctuations in the temperature control chamber from passing through the walls of the temperature control chamber while preventing humidity fluctuations in the temperature control chamber from being transmitted to the humidity control chamber. To be transmitted to the humidity chamber.

For example, one embodiment of the present invention provides:
It is a storage that dehumidifies while controlling the temperature inside the storage,
A temperature control cabinet equipped with a cooling unit that cools the interior to reach the target temperature,
A humidity chamber disposed in the temperature control chamber and equipped with a dehumidifying unit for dehumidifying the interior;
The humidity control chamber uses a heat conductive material having moisture resistance as a wall material.

  Another aspect of the present invention is a dual structure system in which a temperature control chamber equipped with a heating unit is installed in a chamber of a humidity control chamber equipped with a dehumidification unit, and the wall material of the temperature control chamber is transparent. Using a heat-insulating material with moisture or a heat-insulating material with slits for air circulation, while preventing the heat in the temperature-controlled chamber from being transferred to the humidity-controlled chamber, the humidity inside the humidity-controlled chamber is controlled It was transmitted to the inside of the temperature control chamber through the wall.

For example, another aspect of the present invention is:
It is a storage that dehumidifies while controlling the temperature inside the storage,
A humidity chamber equipped with a dehumidifying unit that dehumidifies the interior of the chamber,
A temperature control chamber that is disposed in the humidity control chamber and is equipped with a heating unit that heats the interior so as to be the target temperature.
The temperature control chamber uses a heat-insulating material having moisture permeability as a wall material or a heat-insulating material provided with a slit for air circulation.

  According to one aspect of the present invention, since the humidity control chamber using the heat conductive material having moisture resistance as the wall material is arranged in the temperature control chamber, while suppressing the influence of humidity fluctuation in the temperature control chamber, The cool air inside the temperature control cabinet can be transmitted to the humidity control cabinet. At this time, while the cool air in the temperature control chamber is transmitted to the humidity control chamber via a heat-conductive material having moisture resistance, the humidity control chamber is capable of generating significant humidity fluctuations accompanying minor temperature variations in the temperature control chamber. Therefore, the inside temperature and the inside humidity of the humidity control cabinet can be stabilized.

  Moreover, according to the other aspect of this invention, since the temperature control chamber using the heat insulating material which provided the moisture-permeable heat insulating material or the slit for air circulation as a wall material in the humidity control chamber is arrange | positioned. The heat insulating material can prevent the heat in the temperature control chamber from being transmitted to the humidity control chamber, and thus the humidity control chamber can be dehumidified without being affected by the temperature in the temperature control chamber. In addition, the air in the chamber of the humidity control chamber and the chamber of the temperature control chamber circulates through a heat-insulating material having moisture permeability or a slit for air circulation, and the humidity in the temperature control chamber has a larger capacity. Follow the humidity inside the humidity chamber. Thereby, the internal temperature and internal humidity of a temperature control cabinet can be stabilized.

FIG. 1 is a diagram for explaining the principle of the storage 1A according to the first embodiment of the present invention. 2A and 2B are a schematic front view and a schematic rear view of the storage 1A according to the first embodiment of the present invention. FIG. 3 is a schematic AA cross-sectional view of the storage 1A shown in FIG. FIG. 4 is a schematic sectional view of the dehumidifying unit 33. FIG. 5 shows the measurement of the internal temperature and the internal humidity when the comparative example 1C of the storage 1A is operated with the target temperature in the storage set to 5 ° C. and the target humidity set to 20% RH. It is a figure which shows a result. 6 shows that the target temperature of the inside 20 of the temperature control chamber 2A is set to 5 ° C., and the target humidity of the inside 30 of the humidity control chamber 3A is set to 20% RH, and the storage 1A is operated. It is a figure which shows the measurement result of the internal temperature and the internal humidity of each temperature control chamber 2A and humidity control chamber 3A. FIG. 7 is a diagram for explaining the principle of the storage 1B according to the second embodiment of the present invention. FIG. 8A and FIG. 8B are a schematic front view and a schematic rear view of the storage 1B according to the second embodiment of the present invention. FIG. 9 is a schematic BB cross-sectional view of the storage 1B shown in FIG. In FIG. 10, the storage 1B is operated by setting the target humidity 30 in the humidity control chamber 3B to 0% RH and the target temperature 20 in the temperature control chamber 2B to 50 ° C. It is a figure which shows the measurement result of the internal temperature of each humidity control chamber 3B, and the temperature control chamber 2B, and internal humidity.

  Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment]
First, the principle of the first embodiment of the present invention will be described.

  As shown in FIG. 1, the storage 1 </ b> A according to the present embodiment has a storage 30 in the storage 20 of the temperature control chamber 2 </ b> A capable of cooling the storage 20 to a predetermined temperature (for example, 1 ° C. to 10 ° C.). Is a double-structured storage room in which a humidity control cabinet 3A that can dehumidify to a predetermined humidity (for example, 0% RH to 30% RH) is installed, and a heat conductive material having moisture resistance as a wall material of the humidity control cabinet 3A (Thin metal, plastic, etc.) is used. The temperature control chamber 2A has a humidity resistance as a wall material of the humidity control chamber 3A, although the humidity inside the chamber varies greatly (for example, 5% RH to 80% RH) due to the effects of the cooling process and the defrosting process described later. Since the heat conduction material is used, the cold air in the temperature control chamber 2A is transmitted through the wall material to the humidity control chamber 3A, while being not affected by the humidity change in the temperature control chamber 2A. The inside 30 of the humidity controller 3A can be dehumidified. Therefore, with this double structure and the heat conductive material having moisture resistance, the inside 30 of the humidity control chamber 3A can be stably maintained at the set temperature and humidity.

  Next, details of the storage 1A according to the present embodiment will be described.

  2 (A) and 2 (B) are a schematic front view and a schematic rear view of storage 1A according to the present embodiment. Moreover, FIG. 3 is an AA schematic sectional view of the storage 1A shown in FIG.

  The storage 1A according to the present embodiment is for storing stored products that require high temperature and humidity management such as precision equipment, food, chemicals, etc., and automatically cooling and dehumidifying the interior of the storage The stored product is stored in a constant low temperature and low humidity state (for example, 10 ° C. or lower, 30% RH or lower). As shown in the figure, the storage 1A is arranged in a temperature control chamber 2A that cools the interior 20 so as to reach a target temperature, and a humidity control chamber 3A that is disposed in the interior 20 of the temperature control chamber 2A and dehumidifies the interior 30. And.

  The temperature control cabinet 2A includes a casing 21 provided with an opening 210 for arranging the humidity control cabinet 3A in the cabinet 20 on the front surface 211, an operation panel 22 arranged on the front surface 211 of the housing 21, and the like. A unit 23, a cooling unit control panel 24, and a temperature sensor 25 that measures the internal temperature of the temperature control chamber 2A are provided.

  The operation panel 22 includes input devices such as buttons and keys for receiving various instructions and setting information from the operator, and a liquid crystal panel and LEDs for notifying the operator of various setting information, operation status, environment information, and the like. And a display device.

  The cooling unit 23 includes a compressor 230 that compresses and liquefies the refrigerant vaporized by an evaporator 233, which will be described later, and a condenser 231 that is disposed outside the temperature control chamber 2A and cools the refrigerant liquefied by the compressor 230 with outside air. The expansion valve 232 for lowering the pressure of the refrigerant cooled by the condenser 231 and the refrigerant 20 disposed in the chamber 20 of the temperature control chamber 2A and having the pressure reduced by the expansion valve 232 are vaporized, and the heat of vaporization causes And an evaporator 233 for cooling 20.

  The cooling unit control panel 24 controls the cooling unit 23 so that the internal temperature of the temperature control chamber 2 </ b> A detected by the temperature sensor 25 becomes the target temperature received from the operator via the operation panel 22. The cooling unit control panel 24 includes a temperature sensor IF unit 240, an operation panel IF unit 241, a cooling unit IF unit 242, and a main control unit 243.

  The temperature sensor IF unit 240 is an interface for connecting the main control unit 243 to the temperature sensor 25. The operation panel IF unit 241 is an interface for connecting the main control unit 243 to the operation panel 22. The cooling unit IF unit 242 is an interface for connecting the main control unit 243 to the cooling unit 23.

  If the internal temperature of the temperature adjustment chamber 2A detected by the temperature sensor 25 is higher than the target temperature received from the operator via the operation panel 22, the main control unit 243 operates the cooling unit 23 to adjust the temperature adjustment chamber. The inside 20 of 2A is cooled, and if low, the cooling unit 23 is stopped and cooling of the inside 20 of the temperature control cabinet 2A is stopped (cooling process). As a result, since the cooling unit 23 repeats operation and stoppage in small increments, the internal temperature of the temperature control chamber 2A fluctuates in the vicinity of the target temperature, and the humidity fluctuates in small increments accordingly.

  In addition, the main control unit 243 stops the cooling unit 23 for a predetermined time (for example, 1 hour) every predetermined time (for example, 8 hours) and operates the defrosting heater as necessary to store the temperature control chamber 2A. The inside 20 is defrosted (defrosting process). As a result, the internal temperature of the temperature control chamber 2A temporarily rises, the frost melts, and the internal humidity is temporarily increased by the moisture.

  The humidity control chamber 3A is provided on the housing 31 with the front surface 310 opened, the front surface 310 of the housing 31, the door 32 for accessing the interior 30, the dehumidification unit 33, the dehumidification unit control panel 34, And a humidity sensor 35 for measuring the humidity inside the wet chamber 3A.

  The casing 31 is disposed in the interior 20 of the temperature control chamber 2A such that the front surface 310 is positioned at the opening 210 of the casing 21 of the temperature control chamber 2A. The casing 31 uses a heat conductive material having moisture resistance such as a thin metal plate or plastic as a wall material.

  The dehumidifying unit 33 dehumidifies the interior 30 of the humidity control chamber 3A using a desiccant that can be heated and regenerated, such as zeolite or silica gel.

  FIG. 4 is a schematic sectional view of the dehumidifying unit 33.

  As shown in the figure, the dehumidifying unit 33 is arranged so as to close an opening 312 formed in the back plate 311 of the housing 31, for example. In addition, although the dehumidification unit 33 is arrange | positioned here in the store | warehouse | chamber 30 so that the opening part 312 may be plugged up from the store | warehouse | chamber 30 side, the opening part 312 is set | placed from the store side (the inside 20 of the temperature control cabinet 2A). You may arrange | position outside a warehouse so that it may block. The dehumidifying unit 33 includes at least one drying device 330, a fan 331, and a housing 332 that houses the drying device 330 and the fan 331.

  In the housing 332, as an internal vent that connects the interior of the housing 332 and the interior 30, internal air inlets 333 a and 333 b for taking in the air B 1 in the interior 30 into the housing 332, and the air in the housing 332 In-house exhaust ports 334a and 334b for discharging B2 to the inside 30 are formed. In addition, as external storage vents that connect the inside of the housing 332 and the outside of the storage (inside the storage 20 of the temperature control chamber 2A), external storage inlets 335a and 335b for taking the outside air A1 into the housing 332, External storage outlets 336a and 336b for discharging the air A2 in the housing 332 to the outside of the storage are formed. The fan 331 forces air to flow between the inside of the housing 332 and the inside 30 or the outside (the inside 20 of the temperature control chamber 2A) through the vents 333a, 333b to 336a, 336b. Driven to circulate.

  A drying agent 337 having a spherical shape, a pellet shape, or the like filled in the drying device 330, and a drying agent heater 338 housed in the drying device 330 together with the drying agent 337 are provided. The drying device 330 dehumidifies the air taken into the housing 332 from the interior 30 by absorbing moisture with the desiccant 337. Further, the desiccant 337 is heated by the desiccant heater 338, and the moisture absorbed by the desiccant 337 is discharged from the inside of the housing 332 to the outside (the inside 20 of the temperature control chamber 2A).

  The desiccant 337 is a desiccant that can be heated and regenerated, such as zeolite and silica gel. The amount of desiccant 337 determined according to the space in the storage 30 is a drying device so that the air in the storage 30 can be sufficiently dehumidified. 330 is filled. Although not shown, a plurality of slits having a width narrower than the particle size of the desiccant 337 are formed in the drying device 330. The desiccant 337 dehumidifies the interior of the housing 332 and discharges moisture through the slit.

  The desiccant heater 338 heats the desiccant 337 filled in the drying device 330 under the control of the dehumidifying unit control panel 34, discharges the water accumulated in the desiccant 337, and regenerates the drying capacity.

  Further, the dehumidifying unit 33 includes a shutter 339a that opens and closes the internal intake port 333a and the external intake port 335a exclusively, and a shutter 339b that exclusively opens and closes the internal exhaust port 334a and the external exhaust port 336a. , Is further provided.

  The dehumidifying unit control panel 34 controls the dehumidifying unit 33 based on the internal humidity detected by the humidity sensor 35 in accordance with an instruction received from the operator via the operation panel 22 to bring the internal 30 into a desired humidity state. To do. As illustrated, the dehumidifying unit control panel 34 includes a humidity sensor IF unit 340, an operation panel IF unit 341, a dehumidifying unit IF unit 342, and a main control unit 343.

  The humidity sensor IF unit 340 is an interface for connecting the main control unit 343 to the humidity sensor 35. The operation panel IF unit 341 is an interface for connecting the main control unit 343 to the operation panel 22. The dehumidifying unit IF unit 342 is an interface for connecting the main control unit 343 to the dehumidifying unit 33.

  If the humidity inside the humidity control chamber 3 </ b> A detected by the humidity sensor 35 is higher than the target humidity received from the operator via the operation panel 22, the main control unit 343 moves the interior of the housing 332 only into the chamber 30. In the open state (inside air inlet 333a: open, outside air inlet 335a: closed, inside air outlet 334a: open, outside air outlet 336a: closed), the fan 331 is rotated as necessary. Thus, the humid air B1 in the interior 30 is taken into the housing 332 and dehumidified by the desiccant 337 of the drying device 330 absorbing moisture, and then is exhausted into the interior 30 as dry air B2. The interior 30 is dehumidified (dehumidification process). Further, if the humidity inside the humidity control chamber 3A is lower than the target humidity, the inside of the housing 332 is opened only to the outside (the inside 20 of the temperature control chamber 2A) (inlet air inlet 333a: closed, warehouse The dehumidifying process of the interior 30 is stopped as the outside intake port 335a: open, the interior exhaust port 334a: closed, and the exterior exhaust port 336a: open).

  In addition, the main control unit 343 opens the interior of the housing 332 only outside the storage for a predetermined time (for example, 1 hour) every predetermined time (for example, 6 hours) (inside storage inlet 333a: closed, outside storage inlet) 335a: open, internal exhaust port 334a: closed, external exhaust port 336a: open), the fan 331 is rotated as necessary while operating the desiccant heater 338 to heat the desiccant 337. As a result, outside air A1 is taken into the housing 332, and after the moisture accumulated from the desiccant 337 heated by the desiccant heater 338 is discharged, the air A1 is exhausted outside as a moist air A2. Then, the desiccant 337 is dried (heating regeneration process).

  By controlling the dehumidifying unit 33 as described above, the dehumidifying unit control panel 34 keeps the interior 30 of the humidity control chamber 3A in a desired humidity state and maintains the dehumidifying ability of the desiccant 337 of the drying device 330. To do.

  The first embodiment of the present invention has been described above.

  According to the storage 1A according to the present embodiment, the humidity control chamber 3A using the heat conductive material having moisture resistance as the wall material is disposed in the temperature control chamber 2A. While suppressing the influence of the humidity change of 20, the cold air in the chamber 20 of the temperature control chamber 2A can be transmitted to the humidity chamber 3A. At this time, the cool air in the temperature control chamber 2A is transmitted to the humidity control chamber 3A through the heat conductive material having moisture resistance, so that the cooling unit 23 can change the temperature in the temperature control chamber 2A little by little. Since the inside of the cabinet can be dehumidified by the dehumidifying unit 33 without being affected by the humidity fluctuation accompanying this small temperature change, the inside temperature and the inside humidity of the humidity control cabinet 3A can be reduced. It can be stabilized.

  As a comparative example, the inventor removes the casing 31 of the humidity controller 3A from the casing 21 of the temperature controller 2A, and removes the dehumidifying unit 33, the dehumidifying unit control panel 34, and the humidity sensor 35 of the humidity controller 3A. A storage 1C that is installed on the back side of the casing 21 of the temperature control cabinet 2A and that cools the interior 20 of the temperature control cabinet 2A with the cooling unit 23 and simultaneously dehumidifies with the dehumidification unit 33 is prepared. The target temperature in the storage 1C was set to 5 ° C., the target humidity was set to 20% RH, and the internal temperature and the internal humidity when the storage 1C was operated for a long time were measured. Here, the defrosting process of the cooling unit 23 is set to be performed every 8 hours for 1 hour, and the heat regeneration process of the dehumidifying unit 33 is set to be performed every 6 hours for 30 minutes.

  FIG. 5 is a diagram illustrating measurement results of the internal temperature and the internal humidity when the comparative example 1C of the storage 1A is operated under the above-described conditions. Here, the graph 40 shows the internal temperature, and the graph 41 shows the internal humidity.

  The cooling unit 23 operates when the internal temperature is higher than the target temperature, stops when it is low, and repeats operation and stop in small increments. For this reason, as shown in the figure, the internal temperature fluctuates little by little around the target temperature (reference numeral 400). In conjunction with this small change in the internal temperature, the internal humidity also changes little by little (reference numeral 410). In addition, the cooling unit 23 stops periodically (here, every 8 hours) for a predetermined time (here, 1 hour) to defrost the inside of the refrigerator. For this reason, as shown in the figure, the internal temperature rises temporarily (reference numeral 401), and the internal humidity also temporarily increases (reference numeral 411). In Comparative Example 1C, the cooling unit 23 and the dehumidifying unit 33 are arranged in the cabinet, and the cooling and dehumidification in the cabinet are performed at the same time. Unable to follow, the humidity in the cabinet is not stable.

  Next, the present inventor sets the target temperature in the storage 20 of the temperature control chamber 2A to 5 ° C. and the target humidity 20 in the storage 30 of the humidity control chamber 3A. It was set to% RH and operated for a long time, and the temperature and humidity in each of the temperature control chamber 2A and humidity control chamber 3A were measured. Here, the defrosting process of the cooling unit 23 is performed every 12 hours for 1 hour, and the heat regeneration process of the dehumidifying unit 33 is set to be performed every 6 hours for 30 minutes.

  FIG. 6 is a diagram illustrating measurement results of the internal temperature and internal humidity of the temperature control chamber 2A and the humidity control chamber 3A when the storage 1A is operated under the above-described conditions. Here, the graph 42 is the internal temperature of the temperature control chamber 2A, the graph 43 is the internal humidity of the temperature control chamber 2A, the graph 44 is the internal temperature of the humidity control chamber 3A, and the graph 45 is the internal temperature of the humidity control chamber 3A. The internal humidity is shown.

  The cooling unit 23 operates when the internal temperature is higher than the target temperature, stops when it is low, and repeats operation and stop in small increments. For this reason, as shown in the drawing, the internal temperature of the temperature control chamber 2A fluctuates little by little near the target temperature (reference numeral 420). The internal humidity of the temperature control chamber 2A also changes little by little in conjunction with this small change in the internal temperature (reference numeral 430). Moreover, the cooling unit 23 stops for a predetermined time (here, 1 hour) periodically (here, every 12 hours), and defrosts the inside of the refrigerator. For this reason, as shown in the figure, the internal temperature of the temperature control chamber 2A temporarily increases (reference numeral 421), and the internal humidity of the temperature adjustment chamber 2A temporarily increases accordingly (reference numeral 431).

  However, in the humidity control chamber 3A arranged in the temperature control chamber 2A, since the heat conductive material having moisture resistance is used as the wall material, the change in the internal humidity of the temperature control chamber 2A is the storage of the humidity control chamber 3A. It can prevent the internal humidity from being affected. In addition, since the temperature inside the temperature control chamber 2A is transmitted to the humidity control chamber 3A through the heat conductive material having moisture resistance, as shown in the figure, the humidity control chamber is compared with the temperature inside the temperature control chamber 2A. The fluctuation of the internal temperature of 3A becomes moderate (reference numerals 440 and 441). Since the dehumidifying unit 33 can absorb the change in the humidity inside the humidity control chamber 3A accompanying the change in the temperature inside the gentle humidity control cabinet 3A, as shown in the figure, the inside of the temperature control cabinet 2A Compared to the fluctuation in humidity (reference numerals 430 and 431), the fluctuation of the humidity inside the humidity control chamber 3A becomes gentle (reference numerals 450 and 451).

  From the above measurement results, according to the storage 1A according to the present embodiment, the internal temperature and the internal humidity of the humidity control chamber 3A are more stable as compared with the comparative example 1C in which the internal cooling and dehumidification are performed simultaneously. I found out that

[Second Embodiment]
First, the principle of the second embodiment of the present invention will be described.

  As shown in FIG. 7, the storage 1 </ b> B according to the present embodiment stores the storage 30 in the storage 30 of the humidity control chamber 3 </ b> B that can dehumidify the storage 30 to a predetermined humidity (for example, 0% RH to 30% RH). This is a double-structured storage room in which a temperature control chamber 2B capable of heating the inside 20 to a predetermined temperature (for example, 40 ° C. to 70 ° C.) is installed, and a slit for air circulation is provided as a wall material of the temperature control chamber 2B The heat insulation material (thick metal plate, plastic, etc.) is used. Since the heat insulating material provided with the slit for air circulation is used as the wall material of the temperature control cabinet 2B, the inside 30 of the humidity control cabinet 3B and the inside of the temperature control cabinet 2B are passed through the slit for air circulation. While 20 air circulates, the inside humidity of the temperature control chamber 2B follows the inside humidity of the humidity control chamber 3B having a larger capacity, and is not affected by the temperature of the inside 20 of the temperature control chamber 2B. The inside 30 of the humidity control chamber 3B can be dehumidified. Therefore, with the heat insulating material provided with the double structure and slits for air circulation, the interior 20 of the temperature control chamber 2B can be stably maintained at the set temperature and humidity.

  Next, details of the storage 1B according to the present embodiment will be described.

  FIG. 8A and FIG. 8B are a schematic front view and a schematic rear view of the storage 1B according to the second embodiment of the present invention. Moreover, FIG. 9 is a BB schematic sectional view of the storage 1B shown in FIG. Here, the same code | symbol is attached | subjected to the component which has the same function as 1 A of storages which concern on 1st Embodiment of this invention.

  The storage 1B according to the present embodiment is for storing stored products that require high temperature / humidity management such as precision equipment, food, chemicals, etc., and automatically heating and dehumidifying the inside of the storage The stored product is stored at a constant high temperature and low humidity (for example, 50 ° C. or higher and 30% RH or lower). As shown in the figure, the storage 1B is disposed in the humidity control chamber 3B that dehumidifies the interior 30 and the temperature control chamber 2B that is disposed in the interior 30 of the humidity control chamber 3B and heats the interior 20 so as to reach the target temperature. And.

  The humidity control chamber 3B includes a housing 36 in which an opening 360 for arranging the temperature control chamber 2B in the interior 30 is provided on the front surface 361, an operation panel 37 disposed on the front surface 361 of the housing 36, and the like. A unit 33, a dehumidifying unit control panel 34, and a humidity sensor 35 for measuring the humidity inside the humidity control cabinet 3B are provided.

  The operation panel 37 includes input devices such as buttons and keys for receiving various instructions and setting information from the operator, and a liquid crystal panel and LEDs for notifying the operator of various setting information, operation status, environment information, and the like. And a display device.

  The dehumidifying unit 33 dehumidifies the inside 30 of the humidity control cabinet 3B using a heat-recyclable desiccant such as zeolite or silica gel, and the configuration thereof is that of the first embodiment shown in FIG. It is the same.

  The dehumidifying unit control panel 34 controls the dehumidifying unit 33 based on the internal humidity detected by the humidity sensor 35 in accordance with an instruction received from the operator via the operation panel 37, so that the internal 30 is brought into a desired humidity state. The configuration is the same as that of the first embodiment shown in FIG.

  The temperature control chamber 2B is provided on the casing 26 with the front surface 260 opened, the front surface 260 of the housing 26, a door 29 for accessing the interior 20, the heating unit 27, the heating unit control panel 28, and the control unit. And a temperature sensor 25 that measures the internal temperature of the warm chamber 2B.

  The casing 26 is disposed in the interior 30 of the humidity controller 3B such that the front surface 260 is positioned at the opening 360 of the casing 36 of the humidity controller 3B. The casing 26 is made of a heat insulating material such as a thick plate metal or plastic provided with a slit 262 for air circulation on the back surface 261 as a wall material.

  Although not shown, the heating unit 27 includes a resistor such as nichrome wire and ceramic, a plurality of PTC (Positive Temperature Coefficient) thermistors having different Curie points, and a selector for selecting a PTC thermistor connected to the resistor. And heating the interior of the temperature control chamber 2B by causing the resistor to generate heat by passing a current through the PTC thermistor selected by the selector.

  The heating unit control panel 28 controls the heating unit 27 so that the internal temperature of the temperature control chamber 2B detected by the temperature sensor 25 becomes the target temperature received from the operator via the operation panel 37. The heating unit control panel 28 includes a temperature sensor IF unit 280, an operation panel IF unit 281, a heating unit IF unit 282, and a main control unit 283.

  The temperature sensor IF unit 280 is an interface for connecting the main control unit 283 to the temperature sensor 25. The operation panel IF unit 281 is an interface for connecting the main control unit 283 to the operation panel 37. The heating unit IF unit 282 is an interface for connecting the main control unit 283 to the heating unit 27.

  The main control unit 283 causes the selector to select a PTC thermistor having a Curie point close to the target temperature received from the operator via the operation panel 37 by the temperature inside the temperature control chamber 2B detected by the temperature sensor 25. The heating unit 27 is controlled so as to reduce the amount of current flowing into the resistor near the target temperature and reduce the heat generation of the resistor by causing a current to flow through the resistor via the PTC thermistor to generate heat. Further, the main control unit 283 adjusts the temperature detected by the temperature sensor 25 if the internal temperature of the temperature adjustment chamber 2B detected by the temperature sensor 25 is higher than the target temperature received from the operator via the operation panel 37. The operation of the heating unit 27 is stopped until the internal temperature of the warm chamber 2B becomes lower than the target temperature.

  The second embodiment of the present invention has been described above.

  According to the storage 1B according to the present embodiment, since the temperature control chamber 2B using the heat insulating material provided with the slits 262 for air circulation as the wall material is arranged in the humidity control chamber 3B, the heat insulating material Therefore, it is possible to prevent the heat in the temperature control cabinet 2B from being transmitted to the humidity control cabinet 3B, and thereby the humidity control cabinet 3B can be dehumidified without being affected by the temperature in the temperature control cabinet 2B. Further, the air in the chamber 30 of the humidity control chamber 3B and the chamber 20 of the temperature control chamber 2B circulates through the slit 262 for air circulation, and the humidity in the chamber of the temperature control chamber 2B has a larger capacity. It follows the internal humidity of the wet chamber 3B. Thereby, the internal temperature and internal humidity of the temperature control chamber 2B can be stabilized.

  Moreover, since the inside temperature of the temperature control chamber 2B having a smaller capacity than that of the humidity control chamber 3B is heated to manage the inside temperature, compared with the case where the entire humidity control chamber 3B is heated and the inside temperature is managed, Power consumption can be kept low.

  Further, the stored items that require both humidity management and temperature management are stored in the chamber 20 of the temperature control cabinet 2B, while the stored items that need only be humidity management are stored in the chamber 30 of the humidity control cabinet 3B. Can do.

  The inventor sets the target humidity of the inside 30 of the humidity control cabinet 3B to 0% RH, and sets the target humidity of the inside 20 of the temperature control cabinet 2B to 50 ° C., and relates to the present embodiment. The storage 1B was operated for a long time, and the temperature and humidity in each of the humidity control chamber 3B and the temperature control chamber 2B were measured. Here, the heat regeneration process of the dehumidifying unit 33 is set to be performed every 6 hours for 30 minutes.

  FIG. 10 is a diagram showing measurement results of the internal temperature and internal humidity of the humidity control chamber 3B and the temperature control chamber 2B when the storage 1B is operated under the above-described conditions. Here, the graph 46 is the temperature inside the humidity control chamber 3B, the graph 47 is the humidity inside the humidity control chamber 3B, the graph 48 is the temperature inside the temperature control chamber 2B, and the graph 49 is the temperature inside the temperature control chamber 2B. The internal humidity is shown.

  As shown in the figure, the internal temperature of the temperature control chamber 2B is stabilized near the target temperature by the heating unit 27 (graph 48), but since the heat insulating material is used as the wall material of the temperature control chamber 2B, the temperature control chamber The heat in 2B is not transmitted to the humidity control cabinet 3B, and therefore, the temperature in the humidity control cabinet 3B is not affected by the temperature in the temperature control cabinet 2B (graph 46). As a result, the inside 30 of the humidity controller 3B is dehumidified by the dehumidifying unit 33 without being influenced by the inside temperature of the temperature controller 2B, and the inside humidity of the humidity controller 3B is stabilized (graph 47). In addition, the air in the chamber 30 of the humidity control chamber 3B and the air in the chamber 20 of the temperature control chamber 2B circulate through the slit 262 for air circulation, so that the internal humidity of the temperature control chamber 2B has a larger capacity. The humidity inside the humidity control chamber 3B is followed (graph 49).

  From the above measurement results, according to the storage 1B according to the present embodiment, the internal temperature and the internal humidity of the temperature control chamber 2B are stabilized as in the storage 1A according to the first embodiment of the present invention. I found out that I could do it.

  In addition, in 2nd Embodiment of this invention, the heat insulating material in which the slit 262 for air circulation was provided as a wall material of the temperature control cabinet 2B, and the humidity chamber 3B of the humidity control cabinet 3B was passed through this air circulation slit 262. Although the air in the chamber 30 and the chamber 20 of the temperature control chamber 2B is circulated, the present invention is not limited to this. By using a heat-insulating material having moisture permeability such as a fiber-based heat insulating material, the air in the inside 30 of the humidity control cabinet 3B and the inside 20 of the temperature control cabinet 2B may be circulated.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the gist.

  For example, in each embodiment of the present invention, the functional configuration of the dehumidifying unit control panel 34 (see FIGS. 2 and 8), the functional configuration of the cooling unit control panel 24 (see FIG. 2), and the function of the heating unit control panel 28 The configuration (see FIG. 8) may be realized in hardware by an integrated logic IC such as ASIC (Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array), or DSP (Digital Signal calculation machine such as DSP). It may be realized by software. Alternatively, in a general-purpose computer provided with an auxiliary storage device such as a CPU, a memory, and an HDD, the CPU may be realized by loading a predetermined program from the auxiliary storage device onto the memory and executing it.

  Further, in each embodiment of the present invention, the fan 331 of the dehumidifying unit 33 may be omitted. Further, the operation panels 22 and 37 may be omitted. When the operation panels 22 and 37 are omitted, it is assumed that the target humidity is set in the dehumidifying unit control panel 34 in advance. Similarly, it is assumed that the target temperature is set in the cooling unit control panel 24 and the heating unit control panel 28.

  In each embodiment of the present invention, the dehumidifying unit control panel 34 may be integrated with the dehumidifying unit 33. Alternatively, the dehumidifying unit control panel 34 may be omitted and the dehumidifying unit 33 may be controlled manually. The cooling unit control panel 24 may be integrated with the cooling unit 23. Alternatively, the cooling unit control panel 24 may be omitted, and the cooling unit 23 may be controlled manually. Similarly, the heating unit control panel 28 may be integrated with the heating unit 27. Alternatively, the heating unit control panel 28 may be omitted and the heating unit 27 may be controlled manually.

  Moreover, in each embodiment of this invention, although the doors 29 and 32 of storage 1A, 1B are made common between temperature control cabinet 2A, 2B and humidity control cabinet 3A, 3B, this invention is limited to this. Not. You may provide a door individually with respect to each of temperature control cabinet 2A, 2B and humidity control cabinet 3A, 3B.

  1A, 1B: Storage, 2A, 2B: Temperature control, 3A, 3B: Humidity control, 20: Inside of temperature control 2A, 2B, 21: Case of temperature control 2A, 22, 37: Operation Panel, 23: Cooling unit, 24: Cooling unit control panel, 25: Temperature sensor, 26: Housing of temperature control chamber 2B, 27: Heating unit, 28: Heating unit control panel, 29, 32: Door, 30: Control Inside of the chambers 3A and 3B 31: Housing of the humidity controller 3A 33: Dehumidifying unit 34: Dehumidifying unit control panel 35: Humidity sensor 36: Housing of the humidity controller 3B 210: Housing 21, 211: front surface of housing 21, 230: compressor, 231: condenser, 232: expansion valve, 233: evaporator, 240, 280: temperature sensor IF unit, 241, 281 and 341: operation panel IF , 242: Cooling unit IF unit, 243, 283, 343: Main control unit, 260: Front surface of housing 26, 261: Back surface of housing 26, 262: Slit for air circulation, 310: Front surface of housing 31 330: Drying device, 331: Fan, 332: Housing, 333a, 333b: Inside air inlet, 334a, 334b: Inside air outlet, 335a, 335b: Outside air inlet, 336a, 336b: Outside air outlet, 337: Desiccant, 338: Heater for desiccant, 339a, 339b: Shutter, 342: Dehumidifying unit IF unit, 360: Opening of housing 36, 361: Front surface of housing 36

Claims (6)

It is a storage that dehumidifies while controlling the temperature inside the storage,
A temperature control cabinet equipped with a cooling unit that cools the interior to reach the target temperature,
A humidity chamber disposed in the temperature control chamber and equipped with a dehumidifying unit for dehumidifying the interior;
The said humidity control warehouse is using the heat conductive material which has moisture resistance as a wall material. The storage characterized by the above-mentioned. The storage according to claim 1,
The cooling unit is
A storage with a copressor, condenser, expansion valve, and evaporator, which operates when the temperature is higher than the target temperature and stops when the temperature is lower. It is a storage that dehumidifies while controlling the temperature inside the storage,
A humidity chamber equipped with a dehumidifying unit that dehumidifies the interior of the chamber,
A temperature control chamber that is disposed in the humidity control chamber and is equipped with a heating unit that heats the interior so as to be the target temperature.
The said temperature control warehouse uses the heat insulating material which provided the heat insulating material which has a moisture permeability as a wall material, or the slit for air circulation. The storage warehouse characterized by the above-mentioned. The storage according to claim 3,
The heating unit is
A storage that has a resistor, operates when it is lower than the target temperature, and stops when it is higher. The storage according to any one of claims 1 to 4,
The dehumidifying unit is
A drying apparatus filled with a desiccant that can be regenerated by heating and containing a desiccant heater;
A shutter for selectively performing air circulation between the drying device and the inside of the cabinet on which the dehumidifying unit is mounted, and air circulation outside the chamber on which the drying device and the dehumidifying unit are mounted;
Air is circulated between the inside of the drying device and the inside of the cabinet in which the dehumidifying unit is mounted by the shutter, and the air in the chamber in which the dehumidifying unit is installed is absorbed by the desiccant filled in the drying device. The dehumidifying process for dehumidifying the air and circulating the air between the inside of the drying device and the outside of the chamber on which the dehumidifying unit is mounted by the shutter, and operating the desiccant heater accommodated in the drying device to Control means for heating the desiccant filled in the drying apparatus, discharging the water accumulated in the desiccant to the outside of the cabinet, and controlling the implementation of the heat regeneration process for regenerating the drying capacity of the desiccant; A vault characterized by providing.   It is used as a temperature-controlled warehouse of the storage according to claim 3 or 4, wherein the temperature-controlled warehouse.

Images