JP2019083694A - Temperature and humidity control cabinet - Google Patents

Abstract

The present invention provides a temperature and humidity control storage which can control the inside of a storage to have an appropriate humidity.
In a temperature / humidity control storage (10), a control device (50) for controlling the operation of a cooling device (20), a heating device (30) and a humidifier (40) based on a temperature detected by a temperature sensor and a detected humidity of a humidity sensor. When the temperature detected by the humidity sensor 19 becomes higher than the set humidity when the temperature of the storage 12 is controlled to the set temperature by controlling the operation of the heating device 30, the compressor 21 is set. The dehumidifying operation for operating the compressor 21 is performed in a state in which the rotational speed of the motor 21 is controlled to be half or less of the maximum rotational speed.
[Selected figure] Figure 4

Description

  The present invention relates to a temperature-and-humidity control cabinet such as a dough conditioner which performs aging, fermentation and the like in a state where temperature and humidity are adjusted before baking bread dough.

  Patent Document 1 discloses the invention of a temperature-and-humidity control storage for baking, which performs thawing, aging and fermentation of bread dough. The bread-making temperature-and-humidity control storage includes a storage chamber that stores trays in a multistage manner, a temperature control unit that controls the temperature of the storage chamber, a humidity control unit that controls the humidity of the storage chamber, and air in the storage chamber. A circulating means is provided to circulate and equalize temperature and humidity. In this baking temperature-humidity control room, the air in the storage room is circulated by the circulation means in a state where the temperature and humidity are controlled by the temperature control means and the humidity control means, and the bread dough stored in the storage room is thawed Aging and fermentation processes are to be performed.

Japanese Patent Laid-Open No. 2000-300155

  In the temperature and humidity control storage for bread making of Patent Document 1 mentioned above, an ultrasonic humidifier is adopted as the humidity control means, and the ultrasonic humidifier is communicated with the inlet formed in the storage chamber and the humidification port. ing. The air in the storage chamber is sent from the inlet to the ultrasonic humidifier to be humidified, and the humidified air is sent from the humidification port to the storage chamber to humidify the storage chamber. In this temperature-and-humidity adjustment storage for bread making, a guide is provided at least one of the inlet and the humidification port, and the flow rate of the air humidified by the swinging of the guide to the storage chamber is changed to change the inside of the storage chamber. I try to adjust the humidity. However, in this temperature-and-humidity control storage for bread making, the humidity in the storage chamber may be higher than the set humidity, and there is a possibility that the bread dough in the storage chamber can not be fermented with appropriate humidity. An object of the present invention is to provide a temperature / humidity control storage which can control the inside of the storage so as to have an appropriate humidity.

  In order to solve the above problems, according to the present invention, a storage case for storing stored items, a circulation fan for circulating air in the storage case, a cooling device for cooling the inside of the storage case, and heating for heating the inside of the storage case. Device, Humidifier for humidifying the inside of the storage, Temperature sensor for detecting the temperature inside the storage, Humidity sensor for detecting the humidity inside the storage, Detection temperature of the temperature sensor and detection humidity of the humidity sensor Temperature / humidity control storage provided with a cooling device, a heating device, and a control device for controlling the operation of the humidifier, wherein the cooling device includes a compressor for pumping refrigerant and a refrigerant pumped by the compressor. A compressor for expanding the liquefied refrigerant liquefied by the condenser, and an evaporator for cooling the storage by the heat of vaporization when the expanded liquefied refrigerant is vaporized Adopt one that can change the number of revolutions The control device controls the operation of the heating device to control the temperature of the inside of the storage container to a set temperature, and when the detected humidity of the humidity sensor becomes higher than the set humidity, A temperature / humidity control storage is characterized in that a dehumidifying operation is performed in which the compressor is operated with the number of rotations of the compressor controlled to be half or less of the maximum number of rotations.

  In the temperature-and-humidity control cabinet configured as described above, the temperature detected by the humidity sensor is set higher than the set humidity when temperature control is performed to set the inside of the storage container by controlling the operation of the heating device. Since the dehumidifying operation to operate the compressor is performed while controlling the number of rotations of the compressor to be less than or equal to half of the maximum number of rotations when the humidity becomes higher, the temperature in the storage is prevented as much as possible The storage room could be made to the appropriate humidity by dehumidification. In this temperature and humidity adjustment storage, it is preferable to control the number of rotations of the compressor to be the minimum number of rotations when dehumidifying operation is performed. It became possible to suppress.

  In the temperature-and-humidity control cabinet configured as described above, it is preferable to arrange the evaporator upstream and the downstream heating device in the direction of air flow by the circulating fan. If the heating device is disposed upstream and the evaporator is disposed downstream in the direction of air flow by the circulating fan, the air in the storage is heated by the heating device and then dehumidified by the evaporator and cooled. Although the heating efficiency in the device is reduced, the air inside the storage is dehumidified by the evaporator by arranging the evaporator upstream and the heater downstream in the direction of air flow by the circulating fan. It became possible to be heated later by the heating device so that the heating efficiency in the heating device could not be reduced. In the temperature-and-humidity control cabinet configured as described above, the temperature sensor is disposed upstream of the evaporator in the direction of air flow by the circulation fan, and the temperature sensor for dehumidification downstream of the heating device in the direction of air flow by the circulation fan When the dehumidifying operation is performed, the controller causes the air passing through the evaporator to pass through the evaporator according to the temperature detected based on the temperature detected by the temperature sensor and the temperature detected by the temperature sensor for dehumidification. Preferably, the operation of the heating device is controlled. When this is done, the air that has been passed through the evaporator to be dehumidified and cooled can be heated by the heating device to a temperature before dehumidified and cooled, and even if dehumidified using the evaporator, the temperature inside the storage is It was possible not to lower it.

It is a front view of the temperature and humidity control storage of the present invention. It is a longitudinal cross-sectional view along the left-right direction of the front part of FIG. It is AA sectional drawing. It is the schematic of the cooling device of a greenhouse degree control storehouse, a heating device, and a humidifier. It is a BB sectional view. It is a block diagram showing a control device. It is the schematic equivalent to FIG. 4 which further provided the temperature sensor for dehumidification in temperature control space.

  Hereinafter, an embodiment of a temperature and humidity control storage of the present invention will be described with reference to the attached drawings. The temperature and humidity control storage 10 of the present invention is called a dough conditioner, and performs the steps of freeze (refrigerated), retard (refrigerated), preheating and grilling (fermentation) in order before baking bread dough. is there. The temperature and humidity control storage 10 performs temperature control according to each process when performing each of the above processes, and performs humidity control in addition to the temperature control in the preheating and the wheel process.

  As shown in FIG. 1 and FIG. 2, the temperature and humidity adjustment storage 10 has a storage 12 for storing bread dough (a storage item) in a part excluding the right part in the housing 11 and a machine room in the right part of the housing 11 It has 13 and. As shown in FIG. 3, a front opening 12a is provided at the front of the storage 12 for loading and unloading trays loaded with bread dough, and a door 14 for opening and closing the front opening 12a is openable and closable. It is provided.

  As shown in FIG. 2 and FIG. 4, a partition plate 15 is provided on the right side portion and the bottom portion of the storage case 12, and the right side portion and the bottom portion partitioned by the partition plate 15 of the storage case 12 A duct passage 16 for delivering the adjusted air to the storage 12 is provided. The duct passage 16 includes a vertical duct passage 16 a disposed on the right side of the storage 12 and a lateral duct passage 16 b disposed on the bottom of the storage 12. The upper portion of the vertical duct passage 16a protrudes toward the machine chamber 13, and this portion accommodates the evaporator 25 of the cooling device 20 described later, the heater 31 of the heating device 30, etc. to cool the air or It is a temperature control space 16c for heating.

  As shown in FIG. 2 and FIG. 4, the circulation fan 17 is attached to the upper part of the partition plate 15 disposed on the right side of the storage case 12, and as shown by the two-dot chain arrow in FIG. Air in the storage 12 is guided to the duct passage 16 by the circulation fan 17. The air introduced into the duct passage 16 is cooled or heated in the temperature control space 16c to be temperature controlled, and sent to the left side of the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b. There is.

  As shown in FIG. 4 and FIG. 5, the temperature sensor 18 and the humidity sensor 19 are disposed in the temperature control space 16c, and the temperature sensor 18 detects the temperature in the storage case 12, and the humidity sensor Reference numeral 19 is for detecting the humidity in the storage case 12.

  As shown in FIG. 2, FIG. 4 and FIG. 5, the evaporator 25 of the cooling device 20 for cooling the inside of the storage case 12 is disposed in the temperature control space 16c. The cooling device 20 cools the air in the storage case 12 passing through the temperature control space 16 c to cool the inside of the storage case 12. The cooling device 20 uses a known refrigerant circuit, and includes a compressor 21 for compressing the refrigerant, a condenser 22 for cooling the compressed refrigerant gas, a dryer 23 for removing water contained in the liquefied refrigerant, and liquefaction. The capillary tube (expansion means) 24 which expands a refrigerant | coolant, and the evaporator 25 which vaporizes the expanded liquefied refrigerant and cools the inside of the storage 12 are provided. The evaporator 25 is disposed in the temperature control space 16 c of the duct passage 16, and the other components are disposed in the machine room 13. In the cooling device 20, the refrigerant gas compressed by the compressor 21 is cooled by the condenser 22 to be liquefied refrigerant, and the liquefied refrigerant is expanded by the capillary tube 24 through the drier 23 and sent to the evaporator 25. The air of the temperature control space 16c is cooled when it is vaporized by the evaporator 25. Further, the compressor 21 employs an inverter type motor, and can control the number of revolutions. Further, the condenser 22 is provided with a cooling fan 22a for cooling the refrigerant, and this cooling fan 22a employs an inverter type motor and can control the number of rotations. In addition, although the capillary tube was employ | adopted as an expansion means, it is not restricted to this, Expansion valves, such as an electronic expansion valve, may be employ | adopted.

  As shown in FIGS. 2, 4 and 5, a heating device 30 for heating the inside of the storage case 12 is disposed in the temperature control space 16 c. The heating device 30 heats the air in the storage case 12 passing through the temperature control space 16 c to heat the inside of the storage case 12. The heating device 30 includes a heater 31 for heating the air in the temperature control space 16c, and a bracket 32 for attaching the heater 31 to the temperature control space 16c. The heater 31 is attached to the lower side of the evaporator 25 of the cooling device 20 by a bracket 32. The heater 31 uses a glass tube heater and not only can efficiently heat the air in the temperature control space 16c by radiant heat, but also has a function as a defrost heater of the evaporator 25 disposed on the upper side .

 As shown in FIGS. 2, 4 and 5, a humidifier 40 is disposed in the vertical duct passage 16 a of the duct passage 16, and the humidifier 40 humidifies the inside of the storage case 12. The humidifier 40 includes a spray nozzle 41 for spraying water in the form of mist, a water supply pipe 42 for supplying water to the spray nozzle 41 from a water supply source such as water, an air supply pipe 43 for supplying air to the spray nozzle 41, And an air compressor 44 for delivering air under pressure to the spray nozzle through the trachea 43. The water supply pipe 42 is connected to a water supply source such as a water pipe, and the pressure reduction valve 42 a and the water supply valve 42 b are interposed in the water supply pipe 42. Further, a drainage pipe 45 is connected to the water supply pipe 42 downstream of the water supply valve 42 b, and the drainage pipe 45 is provided with a drainage valve 45 a.

  The spray nozzle 41 is disposed at the rear of the vertical duct passage 16a at the same height position as the lower portion of the temperature control space 16c. The direction of spray from the tip of the spray nozzle 41 is directed forward from the rear of the vertical duct passage 16a, and is in a direction intersecting (orthogonal) with the air moving down the vertical duct passage 16a by the circulation fan 17. When the water supply valve 42b is opened and the air compressor 44 is operated, the water from the water supply pipe 42 and the air from the air supply pipe 43 flow into the spray nozzle 41, and the water is sprayed from the spray nozzle 41 in a mist form. Further, when water is not sprayed in a mist form from the spray nozzle 41, the water remaining in the water supply pipe 42 is discharged from the water discharge pipe 45 by opening the water discharge valve 45a so that the water does not remain in the water supply pipe 42. It is supposed to

  As shown in FIG. 6, the temperature and humidity adjustment storage 10 is provided with a control device 50. The control device 50 includes a circulation fan 17, a temperature sensor 18, a humidity sensor 19, and a cooling device 20 (compressor 21, condenser 22). The cooling fan 22a), the heating device 30 (heater 31), and the humidifier 40 (water supply valve 42b, air compressor 44, and drainage valve 45a) are connected. The control device 50 includes a microcomputer (not shown), and the microcomputer includes a CPU, a RAM, a ROM, and a timer (all not shown) connected to one another via a bus. The control device 50 is provided with a fermentation program that sequentially executes the steps of freezing (refrigerating), retarding (refrigerating), preheating and heating (fermentation) of the dough in the storage 12 in the ROM. In addition, the temperature and humidity control storage 10 can also selectively execute at least one of freeze (refrigerated), retard (refrigerated), preheating, and heating (fermentation) steps.

  The fermentation program maintains the inside of storage 12 at -5 ° C for 3 hours in the freeze (freeze) step, maintains the inside of storage 12 at 0 ° C to 2 ° C in the retard (refrigeration) step, and stores 12 in the preheating step. The interior is maintained at a temperature of 15 ° C. to 18 ° C. and a humidity of 75 to 80% for 2 hours, and in the case of the fermentation (fermentation) process, a humidity of 28 to 35 ° C. is maintained to a humidity of 75 to 85% for 1 hour. In this fermentation program, the time required for the freezing (freezing) step, the preheating step and the heating (fermentation) step is reduced from the time required from the start time of the freezing (freezing) step to the end time preset in the fluorination step. The remaining time is controlled to carry out the retard (refrigeration) process. The temperature, humidity and time are merely examples, and can be changed depending on the type of bread dough to be subjected to fermentation.

  The control when the fermentation program is performed is described below. In the freeze (freeze) process, the control device 50 controls the temperature of the inside of the storage case 12 to be −5 ° C. by controlling the operation of the cooling device 20 based on the temperature detected by the temperature sensor 18. When the detected temperature of the temperature sensor 18 detects a set upper limit temperature higher than -5 ° C. which is the set temperature of the storage 12, the cooling device 20 is operated, and the detected temperature of the temperature sensor 18 is the set temperature of the storage 12 When the set lower limit temperature lower than 5 ° C. is detected, the operation of the cooling device 20 is stopped. When the cooling device 20 is operated, the air sent from the inside of the storage 12 to the temperature control space 16 c of the duct passage 16 by the circulation fan 17 is cooled by heat exchange with the evaporator 25. As indicated by the two-dot chain arrow in FIG. 4, the cooled air is again sent to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is cooled by the cooled air. Be done.

  Three hours after the start of the freezing (freezing) process, the control device 50 executes the retarding (refrigerating) process. In the retard (refrigeration) process, the control device 50 controls the temperature of the inside of the storage case 12 to 2 ° C. by controlling the operation of the cooling device 20 based on the temperature detected by the temperature sensor 18. When the detected temperature of the temperature sensor 18 detects a set upper limit temperature higher than 2 ° C., which is the set temperature of the storage 12, the cooling device 20 is operated, and the detected temperature of the temperature sensor 18 is 2 ° C., which is the set temperature of the storage 12. When a lower set lower limit temperature is detected, the operation of the cooling device 20 is stopped. When the cooling device 20 is operated, the air sent from the inside of the storage 12 to the temperature control space 16 c of the duct passage 16 by the circulation fan 17 is cooled by heat exchange with the evaporator 25. As indicated by the two-dot chain arrow in FIG. 4, the cooled air is again sent to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is cooled by the cooled air. Be done.

  When a predetermined time has elapsed since the start of the retard (refrigeration) process, the control device 50 executes the preheating process. In the preheating step, the control device 50 controls the temperature of the inside of the storage case 12 to 18 ° C. by controlling the operation of the cooling device 20 or the heater 31 based on the temperature detected by the temperature sensor 18 to control humidity. By controlling the operation of the humidifier 40 based on the detected humidity of the sensor 19, the humidity in the storage 12 is controlled to 85%. In an environment where the room temperature is higher than 18 ° C. which is the set temperature, the cooling device 20 is operated when the detected temperature of the temperature sensor 18 detects the set upper limit temperature higher than 18 ° C. which is the set temperature of the storage 12 The temperature controller 18 is controlled so as to stop the operation of the cooling device 20 when the temperature detected by the temperature sensor 18 detects a set lower limit temperature lower than 18 ° C., which is the set temperature of the storage 12. When the cooling device 20 is operated, the air sent from the inside of the storage 12 to the temperature control space 16 c of the duct passage 16 by the circulation fan 17 is cooled by heat exchange with the evaporator 25. As indicated by the two-dot chain arrow in FIG. 4, the cooled air is again sent to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is cooled by the cooled air. Be done.

  On the other hand, in an environment where the room temperature is lower than 18 ° C. which is the set temperature, the heater 31 is operated when the detection temperature of the temperature sensor 18 detects the set lower limit temperature lower than 18 ° C. which is the set temperature of the storage 12 When the upper limit temperature detected by the temperature sensor 18 is higher than 18 ° C., which is the set temperature of the storage 12, is controlled to stop the operation of the heater 31. When the heater 31 is operated, the air sent from the inside of the storage case 12 to the temperature control space 16 c of the duct passage 16 by the circulation fan 17 is heated by the heater 31. As indicated by the two-dot chain arrow in FIG. 4, the heated air is again sent to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is warmed by the heated air. Be

  Further, in the preheating step, the control device 50 performs humidity control so that the humidity in the storage case 12 is 75%, in addition to the temperature control described above. When the control device 50 detects the lower limit setting humidity where the humidity detected by the humidity sensor 19 is lower than 75%, it is controlled to be humidified by the humidifier 40, and when the detection humidity by the humidity sensor 19 detects the upper limit setting humidity higher than 75%. It is controlled to stop the humidification by the humidifier 40. When water is sprayed in the form of mist from the spray nozzle 41, the air sent from the inside of the storage 12 to the duct passage 16 by the circulation fan 17 is the water sprayed from the spray nozzle 41 in the vertical duct passage 16a. The vaporized and humidified air is sent again to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b as shown by the two-dot chain arrow in FIG. 4 and the inside of the storage 12 is It is humidified by humidified air.

  Also, when controlling the operation of the heater 31 of the heating device 30 in the preheating step to control the inside of the storage case 12 to 18 ° C. as the predetermined set temperature, the detected humidity of the humidity sensor 19 is the set humidity. When the dehumidifying humidity is set higher than a certain 75%, the control device 50 operates the compressor 21 in a state where the number of rotations of the compressor 21 is controlled to be the minimum number of rotations (less than half the maximum number of rotations). The dehumidifying operation is performed. In this embodiment, the minimum rotation number of the compressor 21 is set to 1/3 of the maximum rotation number. When the rotation speed of the compressor 21 is operated at the minimum rotation speed, the liquefied refrigerant is sent to the evaporator 25 in a state where the flow rate is suppressed. When the evaporator 25 vaporizes the refrigerant in a state where the flow rate of the liquefied refrigerant is suppressed, the air sent from the storage 12 to the temperature control space 16 c by the circulation fan 17 is dehumidified in a state where the temperature decrease is suppressed by the evaporator 25. Be done. The air dehumidified by the evaporator 25 is again sent to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b, and the dehumidified air is circulated in the storage 12.

  In addition, when the dehumidifying operation is performed, the air in the storage case 12 can be dehumidified by the evaporator 25 but is cooled, and the temperature in the storage case 12 is also lowered. By controlling the operation of the heater 31 of the heating device 30 based on the temperature detected by the temperature sensor 18 as described above when performing the dehumidifying operation, the inside of the storage case 12 is set to 18 ° C. as a predetermined set temperature. The temperature is controlled to be The evaporator 25 is disposed upstream and the heater 31 is disposed downstream in the flowing direction of the air by the circulation fan 17, so that the air after dehumidification can be heated by the evaporator 25 by the heater 31, and the evaporator 25 Even if dehumidification is performed, the temperature can not be lowered by the heater 31.

  In the temperature and humidity adjustment storage 10 configured to execute the dehumidifying operation, as shown in FIG. 7, it is preferable to provide the dehumidifying temperature sensor 18A below the heater 31 of the temperature control space 16c. When the dehumidifying temperature sensor 18A is provided below the heater 31 of the temperature control space 16c, the dehumidifying temperature sensor 18A is disposed downstream of the heater 31 in the flow direction of the air by the circulation fan 17. When performing the dehumidifying operation, the controller 50 is configured to allow the air passed through the evaporator 25 to pass through the evaporator 25 based on the detected temperature of the temperature sensor 18 and the detected temperature of the dehumidifying temperature sensor 18A. The operation of the heater 31 is controlled so that the temperature is reached. In this way, the heater 31 can be heated to a temperature before dehumidifying the air that has been passed through the evaporator 25 and dehumidified, and the temperature in the storage 12 is lowered even if the evaporator 25 dehumidifies. It can not be done.

  Two hours after the start of the preheating process, the control device 50 executes a fermentation (hollow) process. In the flop (fermentation) process, the control device 50 controls the temperature of the inside of the storage case 12 to 35 ° C. by controlling the operation of the heater 31 based on the temperature detected by the temperature sensor 18, thereby the humidity sensor By controlling the operation of the humidifier 40 based on the detected humidity of 19, the humidity in the storage 12 is controlled to 85%.

  When the temperature detected by the temperature sensor 18 detects a set lower limit temperature lower than 35 ° C., which is the set temperature of the storage 12, the heater 31 is controlled to operate, and the detected temperature of the temperature sensor 18 is the set temperature of the storage 12 When a set upper limit temperature higher than a certain 35 ° C. is detected, control is performed to stop the operation of the heater 31. When the heater 31 is operated, the air sent from the inside of the storage case 12 to the temperature control space 16 c of the duct passage 16 by the circulation fan 17 is heated by the heater 31. As indicated by the two-dot chain arrow in FIG. 4, the heated air is again sent to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is warmed by the heated air. Be

  Further, the control device 50 performs humidity control so that the humidity in the storage case 12 is 85% as well as the temperature control. When the control device 50 detects the lower limit setting humidity where the humidity detected by the humidity sensor 19 is lower than 85%, it is controlled by the humidifier 40 to be humidified, and when the detection humidity by the humidity sensor 19 detects the upper limit setting humidity higher than 85% It is controlled to stop the humidification by the humidifier 40. When water is sprayed in the form of mist from the spray nozzle 41, the air sent from the inside of the storage 12 to the duct passage 16 by the circulation fan 17 is the water sprayed from the spray nozzle 41 in the vertical duct passage 16a. The vaporized and humidified air is sent again to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b as shown by the two-dot chain arrow in FIG. 4 and the inside of the storage 12 is It is humidified by humidified air.

  Further, in this hauling (fermentation) step, as in the preheating step, when the detected humidity of the humidity sensor 19 becomes equal to or higher than the dehumidifying humidity set higher than 85% which is the set humidity, the control device 50 The dehumidifying operation is performed in which the compressor 21 is operated in a state where the rotation speed is controlled to be the minimum rotation speed (half or less of the maximum rotation speed). When the rotation speed of the compressor 21 is operated at the minimum rotation speed, the liquefied refrigerant is sent to the evaporator 25 in a state where the flow rate is suppressed. When the evaporator 25 vaporizes the refrigerant in a state where the flow rate of the liquefied refrigerant is suppressed, the air sent from the storage 12 to the temperature control space 16 c by the circulation fan 17 is dehumidified in a state where the temperature decrease is suppressed by the evaporator 25. Be done. The air dehumidified by the evaporator 25 is again sent to the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b, and the dehumidified air is circulated in the storage 12.

  Further, when the dehumidifying operation is performed, the air in the storage case 12 can be dehumidified by the evaporator 25 as in the preheating step, but the air in the storage case 12 is cooled, and the temperature in the storage case 12 is also lowered. . By controlling the operation of the heater 31 of the heating device 30 based on the temperature detected by the temperature sensor 18 as described above when performing the dehumidifying operation, the inside of the storage case 12 is set to 18 ° C. as a predetermined set temperature. The temperature is controlled to be The evaporator 25 is disposed upstream and the heater 31 is disposed downstream in the flowing direction of the air by the circulation fan 17, so that the air after dehumidification can be heated by the evaporator 25 by the heater 31, and the evaporator 25 Even if dehumidification is performed, the temperature can not be lowered by the heater 31.

  Furthermore, as shown in FIG. 7, the control device 50 also performs the dehumidifying operation based on the detected temperature of the temperature sensor 18 and the detected temperature of the dehumidifying temperature sensor 18A in this hauling (fermentation) step as well. The operation of the heater 31 is controlled so as to reach a temperature before passing through the evaporator 25. In this way, the heater 31 can be heated to a temperature before dehumidifying the air that has been passed through the evaporator 25 and dehumidified, and the temperature in the storage 12 is lowered even if the evaporator 25 dehumidifies. It can not be done. One hour after the start of the Holo (fermentation) process, the controller 50 ends the fermentation program.

  In the temperature-and-humidity control cabinet 10 configured as described above, the temperature of the interior of the storage cabinet 12 is controlled to a predetermined set temperature by controlling the operation of the heater 31 when performing the preheating step and the proofing (fermentation) step. When controlling, if the detected humidity of the humidity sensor 19 becomes higher than the set humidity, or more than the dehumidified humidity, the number of rotations of the compressor 21 is controlled to be the minimum number of rotations (less than half the maximum number of rotations) A dehumidifying operation to operate the compressor 21 was performed. As a result, it was possible to dehumidify the storage case 12 to have an appropriate humidity, while keeping the temperature in the storage case 12 as low as possible. In the temperature and humidity adjustment storage 10, the rotational speed of the compressor 21 is controlled at the minimum rotational speed when performing the dehumidifying operation, but the present invention is not limited to this, and the rotational speed of the compressor 21 is Can be controlled to be equal to or less than half of the maximum rotation speed to obtain a certain effect.

  Further, in the temperature and humidity control storage 10, the evaporator 25 is disposed on the upstream side and the heater 31 is disposed on the downstream side in the flowing direction of the air by the circulation fan 17. If the heater 31 is disposed on the upstream side and the evaporator 25 is disposed on the downstream side in the flow direction of the air by the circulation fan 17, the air heated by the heater 31 is dehumidified by the evaporator 25 and cooled. However, by disposing the heater 25 upstream and the heater 31 downstream in the direction of air flow by the circulation fan 17, the heater 25 is dehumidified and then heated by the heater 31. The heating efficiency of the heater 31 could not be reduced.

  Furthermore, as shown in FIG. 7, the temperature sensor 18 is disposed upstream of the evaporator 25 in the flow direction of air by the circulation fan 17, and dehumidified downstream of the heater 31 in the flow direction of air by the circulation fan 17. A temperature sensor 18A is provided, and when the dehumidifying operation is performed, the controller 50 has a temperature before passing through the evaporator 25 based on the detected temperature of the temperature sensor 18 and the detected temperature of the dehumidifying temperature sensor 18A. The operation of the heater 31 was controlled. By doing this, the heater 31 can be heated by the heater 31 so as to reach the temperature before dehumidifying and cooling the air that has passed through the evaporator 25 and has been dehumidified. It was possible not to lower the temperature inside.

  In the temperature-and-humidity control storage 10 in which the dehumidifying operation is performed, switching between switching the flow of air by the circulation fan 17 through the evaporator 25 in the temperature control space 16c and the non-passage of the evaporator 25 is performed. If the plate is provided rotatably, air is allowed to pass through the evaporator 25 by the switching plate during dehumidifying operation, and air is controlled by the switching plate when controlled so as to be humidified. Can be prevented from passing through.

  As a method of dehumidifying the inside of the storage case 12, the compressor 21 is controlled in such a manner that the number of rotations of the compressor 21 is controlled to be the minimum number of rotations. However, in another dehumidifying method, external air may be introduced into the storage 12 to dehumidify.

 DESCRIPTION OF SYMBOLS 10 Temperature-and-humidity adjustment storehouse 12 cookhouse 17 circulation fan 18 temperature sensor 18A dehumidification temperature sensor 19 humidity sensor 20 cooling device 21 compressor 22 condenser 24 ... expansion means (capillary tube), 25 ... evaporator, 30 ... heating device, 40 ... humidifier, 50 ... control device.

Claims (4)

A storage case for storing stored items,
A circulation fan for circulating the air in the storage;
A cooling device for cooling the inside of the storage;
A heating device for heating the inside of the storage case;
A humidifier for humidifying the inside of the storage;
A temperature sensor for detecting the temperature in the storage;
A humidity sensor for detecting the humidity in the storage;
A temperature / humidity control storage comprising a control device that controls the operation of the cooling device, the heating device, and the humidifier based on the temperature detected by the temperature sensor and the detected humidity of the humidity sensor.
The cooling device includes: a compressor for pumping refrigerant; a condenser for cooling and liquefying the refrigerant pumped by the compressor; and expansion means for expanding the liquefied refrigerant liquefied by the condenser; And an evaporator that cools the storage unit by the heat of vaporization when the liquefied refrigerant is vaporized, and the compressor that can change the rotational speed is adopted as the compressor.
When the control device controls the operation of the heating device to perform temperature control so that the inside of the storage compartment has a set temperature, when the detected humidity of the humidity sensor becomes equal to or higher than the set humidity. A temperature and humidity control storage characterized in that a dehumidifying operation for operating the compressor is performed in a state where the rotation speed of the compressor is controlled to be half or less of the maximum rotation speed. In the temperature and humidity control cabinet according to claim 1,
A temperature and humidity control storage characterized in that the number of rotations of the compressor is controlled to be the minimum number of rotations when the dehumidifying operation is performed. In the temperature and humidity control cabinet according to claim 1 or 2,
A temperature and humidity control storage, wherein the evaporator is disposed on the upstream side and the heating device is disposed on the downstream side in a flow direction of air by the circulation fan. In the temperature and humidity control cabinet according to claim 3,
The temperature sensor is disposed upstream of the evaporator in the direction of air flow by the circulation fan, and a dehumidifying temperature sensor is provided downstream of the heating device in the direction of air flow by the circulation fan.
The control device is configured to set the temperature before passing through the evaporator based on the temperature detected by the temperature sensor and the temperature detected by the temperature sensor for dehumidification when the dehumidifying operation is performed. Temperature and humidity control storage characterized in that operation was controlled.

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