JP6681793B2 - Cold storage - Google Patents

Description

  The present invention relates to a cold store.

  BACKGROUND ART Heretofore, one described in Patent Document 1 below is known as an example of a catering car provided with a refrigerating compartment. The vehicle described in Patent Document 1 is configured such that a freezer unit and an internal fan that configures a cooling unit are driven to drive the freezer unit and an internal fan that opens from the bottom surface of the cooler chamber to communicate with the cold storage chamber. Is sucked in, cooled by a cooler, and sent by an internal fan into an intermediate wall that also serves as a duct for circulating cold air. Then, the through-holes (not shown) formed at the positions corresponding to the serving trays accommodated in the refrigerating compartments of the intermediate wall blow out into the refrigerating compartments, and the blown-out cool air rises in the refrigerating compartments. Then, a circulation flow is again introduced from the opening portion to the cooler, so that each refrigerating chamber is cooled.

Japanese Patent No. 4373750

  According to the serving vehicle described in Patent Document 1 described above, when the door is opened during serving and the high-humidity / high-temperature outside air flows into the refrigerating compartment, dew condensation may occur in the cooler. The condensed water adhering to the cooler does not dry if the humidity in the refrigerating room is still high, and mold may be generated, which is a sanitary problem.

  The present invention has been completed based on the above circumstances, and an object thereof is to suppress the occurrence of mold and the like.

  The cooling storage of the present invention, a storage main body for storing stored items, a cooling device having a cooler, an internal fan for circulating air cooled by heat exchange with the cooler in the storage main body, A cooling switch that can be turned on and off, a timer that measures time, and a control unit that controls the operation of the cooling device and the internal fan, and if the cooling switch is on, the cooling device and Control to stop the operation of the internal fan while operating the internal fan and stop the operation of the cooling device when the cooling switch is OFF, and start the time measurement of the timer to stop the operation of the internal fan based on the time measurement by the timer. And a section.

  According to such a configuration, if the cooling switch is ON, the control unit operates the cooling device and the internal fan. The air cooled by the heat exchange with the cooler provided in the cooling device is circulated in the storage main body by the internal fan, so that the stored matter stored in the storage main body is cooled. On the other hand, if the cooling switch is OFF, the control unit stops the operation of the cooling device, but continues the operation of the internal fan. At this time, the control unit starts the time counting by the timer and stops the operation of the internal fan based on the time counting by the timer. In this way, even after the operation of the cooling device is stopped, the operation of the internal fan is continued for a predetermined time, so that the humidity inside the storage main body rises, and as a result, dew condensation occurs on the cooler. Also, the condensed water attached to the cooler can be evaporated and dried. As a result, it is possible to suppress the generation of mold and the like in the storage body. Further, by limiting the operating time of the internal fan by the timer and the control unit, it is possible to prevent excessive operation of the internal fan and reduce power consumption.

The following configurations are preferable as embodiments of the present invention.
(1) A power supply unit that receives supply of electric power is provided, and when the supply of electric power is started in the power supply unit, the control unit starts the operation of the internal fan and starts the time measurement of the timer. If the cooling switch is OFF, the operation of the internal fan is stopped based on the time counting by the timer, and if the cooling switch is ON, the operation of the cooling device is started. For example, if the power supply is stopped while the power is being supplied, the operation of the internal fan is stopped, so that dew condensation water attached to the cooler tends to remain, but the power supply When the supply is started, the control unit starts the operation of the internal fan, so that the condensed water adhering to the cooler can be evaporated and dried. When the cooling switch is OFF, the control unit starts the operation of the internal fan as well as stops the operation of the internal fan based on the time measured by the timer. It is possible to prevent driving and reduce power consumption. On the other hand, if the cooling switch is ON, the control unit can start the operation of the cooling device to cool the stored items accommodated in the storage main body.

(2) A fan operation time adjustment operation unit capable of adjusting the operation time of the internal fan is provided, and the control unit causes the timer to start counting when the cooling switch is OFF. When the time measured by the timer reaches the operation time set based on the operation of the fan operation time adjustment operation unit, the operation of the internal fan is stopped. In this way, by operating the fan operation time adjustment operation unit, the operation time of the internal fan when the cooling switch is turned off is adjusted to be optimum according to the usage status of the cooling storage. Therefore, it is possible to further reduce the power consumption as compared with the case where the operating time of the internal fan when the cooling switch is turned off is fixed to a constant value.

(3) A temperature adjusting operation unit is provided that is capable of adjusting the temperature inside the storage main body, and the fan operating time adjusting operation unit is also used by the temperature adjusting operation unit. With this configuration, the temperature inside the storage main body can be adjusted by operating the temperature adjustment operation unit. This temperature adjustment operating section also serves as the fan operating time adjustment operating section, which is suitable for cost reduction.

(4) A caster is provided on the bottom surface of the storage body to enable movement. With this configuration, since the casters provided on the bottom surface of the storage main body can move, high convenience can be obtained in transporting the stored items in the storage main body. In such a movable cooling storage, although the supply of electric power becomes impossible and the humidity in the storage main body easily rises during the transportation of stored items, the inside of the storage is kept for a predetermined time even after the operation of the cooling device is stopped. By continuing the operation of the fan, it is possible to evaporate and dry the condensed water adhering to the cooler, thereby suppressing the generation of mold and the like.

  According to the present invention, generation of mold and the like can be suppressed.

1 is a partially cutaway front view of a hot and cold serving vehicle according to a first embodiment of the present invention. Block diagram of control system in hot and cold distribution car Flow chart related to control of cooling device and internal fan when power is turned on Flowchart relating to control of the cooling device and the internal fan when the cooling switch is turned off after the start of the normal refrigeration operation The front view of the temperature adjustment operation part with which the hot and cold distribution vehicle according to Embodiment 2 of the present invention is provided. Flowchart of the first half of the fan operation time setting mode Flowchart of the second half of the fan operation time setting mode

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the hot and cold serving vehicle 10 is shown as an example of the movable cooling storage.

  As shown in FIG. 1, the hot and cold serving vehicle 10 of the present embodiment is provided with a storage box main body 11 having a rectangular box shape as a whole, and more specifically, for example, a heat insulating material such as urethane foam is provided in an outer shell made of a stainless steel plate. It is configured as a heat-insulating box body that is filled with material and has openings on both front and back surfaces. A machine room 12 is provided on the upper surface of the storage body 11, and casters 13 are provided on the bottom surface of the storage body 11, so that the storage room 11 can move in the left-right direction in FIG.

  Inside the storage main body 11, a duct 14 for circulating cold air is erected at a center position in the width direction and divided into two left and right chambers, and each chamber has a heat insulating property formed by stacking a plurality of unit partition walls 16. It is partitioned by the partition wall 15, whereby two refrigerating chambers 19 are formed inside the partition wall 15 and two heating chambers 18 are formed outside the partition wall 15 and are slightly wider than the refrigerating chambers 19. . The width of the warm room 18 may be the same as that of the cold room 19, and the size relationship of the width may be reversed. Here, two sets of the heating chamber 18 and the refrigerating chamber 19 which are adjacent to each other are formed in the left-right direction, and are further divided into the front and back sides to form a total of four sets of the heating chamber 18 and the refrigerating chamber 19. Opening and closing doors 20 are provided at the front and back doors of each of the hot and cold storage rooms 18 and 19.

  Vents 22 are formed on both the left and right sides of the duct 14 so as to be divided into a plurality of regions. In the machine room 12, a cooler room 24 is defined so as to cover the duct 14 and the opening of the ceiling surface of the one refrigerating room 19, and a cooler 26 that constitutes a refrigeration cycle together with the cooling device 25 is defined therein. An internal fan 27 is installed. Therefore, when the refrigeration cycle is operated and the internal fan 27 is driven, the air (cool air) cooled by heat exchange in the vicinity of the cooler 26 is blown into the duct 14 and left and right through the ventilation port 22. A cooling flow is generated by being blown into the refrigerating compartment 19 and then being guided from the ceiling side of one refrigerating compartment 19 into the cooler compartment 24, whereby the left and right refrigerating compartments 19 are cooled. A heater panel 28 is provided on the side surface of the heating chamber 18 opposite to the partition wall 15, and the inside of the heating chamber 18 is heated by the radiant heat from the heater panel 28. Further, left and right tray receivers 29 are attached to the surface of the duct 14 and the surface of the heater panel 28 in multiple stages.

  The tray (stored item) 30 is formed in a horizontally long rectangular shape, and a boundary portion 30A is provided at a position slightly closer to one side than the center portion of the horizontal width, and the tray 30 is provided in a warm state in a wide area across the boundary portion 30A. The food (storage) to be stored is placed on the narrow side in a cold state (storage). The tray 30 has a boundary portion 30A that is penetrated between the upper and lower unit partition walls 16, and the lower surfaces of both ends thereof are pushed while being received by the left and right tray receivers 29, so that the tray 30 can be accommodated from both front and rear surfaces. . As a result, the hot food (stored material) and the cold food (stored material) placed on one tray 30 are stored in the hot storage room 18 and the cold storage room 19, respectively, and are stored hot or cold.

  A control system for controlling the operation of the cooling device 25 (cooler 26) and the internal fan 27 will be described in detail. As shown in FIG. 2, the control system includes a control unit 40, a temperature adjusting operation unit 41 capable of adjusting the temperature of the refrigerating compartment 19 in the storage body 11, and an ON / OFF operation. At least a cooling switch 42, a timer 43 that measures time, and a power plug (power supply unit) 44 that receives power supply are included. The temperature adjusting operation unit 41 is installed on the outer surface of the storage body 11, and although not shown, a button for the user to set the temperature of the refrigerating compartment 19, and a display unit for displaying the set temperature and the like. , Is provided. A temperature sensor (not shown) is installed in the refrigerator compartment 19.

  The control unit 40 has at least a CPU 40a and a memory 40b. The memory 40b includes a ROM, a RAM, an NV (non-volatile) RAM and the like, and the ROM stores various programs executed by the CPU 40a. Data relating to various processes is temporarily stored in the RAM. The cooling switch 42 is installed on the outer surface or the inner surface of the storage body 11 (such as the inner wall surface of the refrigerating chamber 19), and allows the user to turn it on and off. The timer 43 starts or stops timekeeping in conjunction with the cooling switch 42 and the power plug 44, and its operation is controlled by the control unit 40. The power plug 44 is provided at the tip of a power cord (not shown) led out of the storage main body 11, and receives power by being plugged into an outlet (power source).

  Next, specific processing related to control of the cooling device 25 and the internal fan 27 of the present embodiment will be described. First, FIG. 3 will be referred to regarding the processing relating to the control of the cooling device 25 and the internal fan 27 when the power supply of the hot / cold distribution vehicle 10 is turned on by the power plug 44 being inserted into the outlet and receiving the power supply. It demonstrates using. When the power supply of the hot and cold serving vehicle 10 is turned on, the control unit 40 starts the operation of the in-compartment fan 27 and the time counting by the timer 43 as shown in FIG. 3 (step S101). After that, the control unit 40 determines whether or not the cooling switch 42 is turned on (step S102). When the control unit 40 determines “YES” in step S102, the control unit 40 starts the operation of the cooling device 25 (step S103) and causes the normal refrigeration operation to be performed. During normal refrigerating operation, the cooling unit 25 and the internal fan 27 are operated by the control unit 40, so that the air cooled by heat exchange with the cooler 26 provided in the cooling device 25 is cooled by the internal fan 27 in the refrigerating chamber 19. By circulating the inside, the cold food on the tray 30 accommodated in the refrigerating chamber 19 can be cooled. On the other hand, when the control unit 40 determines "NO" in step S102, it is determined whether or not the time measured by the timer 43 has reached the set time (step S104). When the control unit 40 determines "NO" in step S104, the process returns to step S102, while when the control unit 40 determines "YES" in step S104, the control unit 40 determines The operation of the internal fan 27 is stopped (step S105).

  Next, a process relating to the control of the cooling device 25 and the internal fan 27 when the cooling switch 42 is turned off after the start of the normal refrigeration operation will be described with reference to FIG. After the start of the normal refrigeration operation, the control unit 40 determines whether the cooling switch 42 is turned on as shown in FIG. 4 (step S106). When the control unit 40 determines “YES” in step S106, the process returns to step S106 again. On the other hand, when the control unit 40 determines "NO" in step S106, the operation of the cooling device 25 is stopped, and the time counting by the timer 43 is started (step S107). At this time, the internal fan 27 is continuously operated. Here, tentatively, the outside air accompanying the opening of the opening / closing door 20 flows into the refrigerating compartment 19, which causes the humidity inside the refrigerating compartment 19 to rise and causes dew condensation on the cooler 26 constituting the cooling device 25. Even if the internal fan 27 continues to operate as described above, the circulation flow generated by the internal fan 27 accelerates the evaporation / drying of the condensed water adhering to the cooler 26. As a result, it is possible to prevent the dew condensation water attached to the cooler 26 from being left as it is, so that it is possible to suppress the generation of mold and the like in the storage main body 11, which is excellent in hygiene.

  Thereafter, as shown in FIG. 4, the control unit 40 determines whether or not the cooling switch 42 is turned on (step S108). When the control unit 40 determines "YES" in step S108, the operation of the cooling device 25 is started (step S109), and the normal refrigeration operation is performed. On the other hand, when the control unit 40 determines "NO" in step S108, it is determined whether or not the time measured by the timer 43 has reached the set time (step S110). When the control unit 40 determines “NO” in step S110, the process returns to step S108, while when the control unit 40 determines “YES” in step S110, the control unit 40 determines The operation of the internal fan 27 is stopped (step S111). The set time of the timer 43 in step S110 described above is a value sufficient for the condensed water adhering to the cooler 26 to be dried and removed with the continuous operation of the internal fan 27, As a result, it is possible to reliably remove the condensed water, prevent excessive (unnecessary) operation of the internal fan 27, and achieve low power consumption.

  As described above, the control unit 40 operates the cooling device 25 and the internal fan 27 when the cooling switch 42 is ON, while stopping the operation of the cooling device 25 when the cooling switch 42 is OFF and the timer 43. Since the operation of the internal fan 27 is stopped based on the timing of the timer 43, the internal fan 27 that is continuously operated even after the operation of the cooling device 25 is stopped is cooled. The condensed water adhering to the vessel 26 can be evaporated and dried, and the operation time of the internal fan 27 is limited by the timer 43, so that excessive operation of the internal fan 27 is prevented, thereby reducing power consumption. Planned.

  By the way, since the hot and cold serving vehicle 10 has the casters 13 and is movable, when the serving (transportation of stored goods) is performed, the power plug 44 is in a state of being unplugged from the outlet. Become. Therefore, at the time of serving, since the electric power is not supplied to the hot and cold serving vehicle 10, the operation of the cooling device 25 and the in-compartment fan 27 is stopped, and in addition, the opening / closing door 20 is frequently accompanied by the serving. Since it is opened and closed, high temperature and high humidity outside air can easily flow into the refrigerator compartment 19. Therefore, the dew condensation water is likely to adhere to the cooler 26 constituting the cooling device 25, and the adhered dew condensation water is likely to remain. In that respect, when the power supply to the power plug 44 is started, the control unit 40 starts the operation of the internal fan 27 and the timer 43, and if the cooling switch 42 is OFF, the control unit 40 operates by the timer 43. Based on the timing, the operation of the internal fan 27 is stopped, and if the cooling switch 42 is ON, the operation of the cooling device 25 is started. Therefore, for example, when the power plug 44 is plugged into the outlet and power supply is resumed after the serving is finished, the control unit 40 first starts the operation of the internal fan 27, which causes the cooler 26 to operate. Condensed water that adheres can be evaporated and dried. Since the control unit 40 has started the operation of the internal fan 27 as well as the timing of the timer 43, and if the cooling switch 42 is OFF, it stops the operation of the internal fan 27 based on the timing by the timer 43. It is possible to prevent excessive operation of the internal fan 27 and achieve low power consumption. On the other hand, if the cooling switch 42 is ON, the control unit 40 can start the operation of the cooling device 25 to cool the cold food contained in the refrigerating chamber 19.

  As described above, the hot and cold serving vehicle (cooling storage) 10 of the present embodiment has a storage main body 11 that accommodates the tray 30, which is a storage, a cooling device 25 including the cooler 26, and a cooler 26. Fan 27 that circulates the air cooled by the heat exchange of the inside of the storage main body 11, a cooling switch 42 that can be turned on and off, a timer 43 that measures time, a cooling device 25 and a fan in the warehouse. A control unit 40 for controlling the operation of the cooling device 27, which operates the cooling device 25 and the internal fan 27 when the cooling switch 42 is ON, and stops the operation of the cooling device 25 when the cooling switch 42 is OFF. In addition, the control unit 40 that starts the time counting of the timer 43 and stops the operation of the internal fan 27 based on the time counting by the timer 43.

  According to such a configuration, if the cooling switch 42 is ON, the control unit 40 operates the cooling device 25 and the internal fan 27. The air cooled by the heat exchange with the cooler 26 provided in the cooling device 25 is circulated in the storage main body 11 by the internal fan 27, so that the tray 30 which is a storage object stored in the storage main body 11 or the like. Is cooled. On the other hand, if the cooling switch 42 is OFF, the control unit 40 stops the operation of the cooling device 25, but continues the operation of the internal fan 27. At this time, the control unit 40 starts the time counting of the timer 43 and stops the operation of the internal fan 27 based on the time counting by the timer 43. In this way, since the internal fan 27 continues to be operated for a predetermined time even after the operation of the cooling device 25 is stopped, the humidity inside the storage main body 11 is tentatively increased, which causes dew condensation on the cooler 26. Even if it occurs, the condensed water adhering to the cooler 26 can be evaporated and dried. Accordingly, it is possible to suppress the generation of mold and the like in the storage body 11. In addition, by limiting the operating time of the internal fan 27 by the timer 43 and the control unit 40, it is possible to prevent excessive operation of the internal fan 27 and achieve low power consumption.

  In addition, the power supply plug (power supply unit) 44 that receives power supply is provided, and the control unit 40 starts the operation of the internal fan 27 and starts the timer 43 when the power supply plug 44 starts supplying power. When the cooling switch 42 is OFF, the operation of the internal fan 27 is stopped based on the time counting by the timer 43, and when the cooling switch 42 is ON, the operation of the cooling device 25 is started. For example, when the power plug 44 is stopped from the state where the power is supplied, the operation of the internal fan 27 is stopped, so that the dew condensation water attached to the cooler 26 easily remains, but the power plug When the supply of electric power is started at 44, the controller 40 starts the operation of the internal fan 27, so that the condensed water attached to the cooler 26 can be evaporated and dried. The control unit 40 has started the operation of the internal fan 27 as well as the timing of the timer 43. If the cooling switch 42 is OFF, the control unit 40 stops the operation of the internal fan 27 based on the timing of the timer 43. It is possible to prevent excessive operation of the internal fan 27 and achieve low power consumption. On the other hand, if the cooling switch 42 is ON, the control unit 40 can start the operation of the cooling device 25 to cool the trays 30 and the like, which are stored items stored in the storage main body 11.

  In addition, the caster 13 is provided on the bottom surface of the storage main body 11 and is movable. With this configuration, since the casters 13 provided on the bottom surface of the storage main body 11 can move the trays, it is possible to obtain high convenience in transporting the trays 30 and the like, which are stored items in the storage main body 11. . In such a movable hot and cold serving vehicle 10, although power cannot be supplied and the humidity in the storage main body 11 easily rises during transportation of the tray 30, which is a storage item, the cooling device 25 is operated. By continuing the operation of the internal fan 27 for a predetermined time even after the stop, it is possible to evaporate and dry the condensed water adhering to the cooler 26, thereby suppressing the generation of mold and the like.

<Embodiment 2>
The second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the fan operation time setting mode is performed. Note that duplicated description of the same structure, operation, and effect as in the above-described first embodiment will be omitted.

  In the present embodiment, a hot and cold distribution vehicle equipped with a "fan operation time setting mode" in which the user can appropriately set the operation time of the internal fan that is operated in a state in which the operation of the refrigeration system is stopped. Will be described. The fan operation time setting mode is set using a temperature adjustment operation unit 141 for performing an operation of adjusting the temperature in the refrigerating compartment, as shown in FIG. That is, in the present embodiment, the temperature adjustment operation unit 141 also serves as the fan operation time adjustment operation unit 45 capable of adjusting the operation time of the internal fan.

  As shown in FIG. 5, the temperature adjustment operation unit 141 (fan operation time adjustment operation unit 45) has three buttons 46, 47, 48 which are pressed down when the user sets the temperature of the refrigerating compartment, and the drawings. The temperature display unit 49 displays the temperature inside the refrigerating chamber measured by the temperature sensor, and the set temperature display unit 50 displays the set temperature inside the refrigerating chamber. The three buttons 46 to 48 include a setting button 46, a plus button 47, and a minus button 48. In the fan operating time setting mode, the set temperature display unit 50 displays a numerical value related to the set operating time of the internal fan, and the same numerical value is, for example, the set operating time when the unit is "minute". Is an integer obtained by dividing by 10 minutes. When the temperature is specifically adjusted, when the user presses the setting button 46 and then the plus button 47 or the minus button 48, the control unit (see FIG. 2) causes the plus button to be pressed. The set temperature displayed on the set temperature display unit 50 is changed according to the number of times the 47 or the minus button 48 is pressed. Then, the control unit controls the operation of the cooling device and the internal fan in accordance with the change of the set temperature, so that the temperature in the refrigerating chamber reaches the set temperature.

  Next, a case where the operating time of the internal fan is adjusted in the fan operating time setting mode will be described. 6 shows a flowchart relating to the first half of the fan operating time setting mode, and FIG. 7 shows a flowchart relating to the latter half of the fan operating time setting mode. In the fan operation time setting mode, as shown in FIG. 6, the control unit determines whether or not the three buttons 46 to 48 in the fan operation time adjustment operation unit 45 are simultaneously pressed (step S201). If the control unit determines “NO” in step S201, the process returns to step S201, whereas if the control unit determines “YES” in step S201, the control unit determines whether the timer Timing is started (step S202). Then, the control unit determines whether or not the time measured by the timer has reached the set time with the three buttons 46, 47 and 48 being pressed (step S203). The set time at this time is, for example, 5 seconds. When the control unit determines “NO” in step S203, the process proceeds to step S213, and the fan operation time setting mode ends. That is, when the user stops pressing the three buttons 46, 47, 48 within 5 seconds, the fan operation time setting mode is released. On the other hand, when the control unit determines “YES” in step S203, the control unit starts blinking display on the set temperature display unit 50 and starts time counting by the timer (step S204). The blinking display on the set temperature display section 50 informs the user that the fan operation time setting mode has been entered.

  Subsequently, as shown in FIG. 6, the control unit determines whether or not the time measured by the timer has reached the set time (step S205). The set time at this time is, for example, 5 seconds. When the control unit determines “YES” in step S205, the process proceeds to step S213, and the fan operation time setting mode ends. That is, when the user does not perform the operation of setting the fan operation time within 5 seconds, the fan operation time setting mode is released. On the other hand, when the control unit determines “YES” in step S205, the control unit determines whether the setting button 46 and the plus button 47 are simultaneously pressed, as shown in FIG. (Step S206). When the control unit determines “YES” in step S206, the control unit increases the operating time of the internal fan by 10 minutes and increases the value displayed by blinking on the set temperature display unit 50 by one. (Step S207). When step S207 is completed or when the control section determines "NO" in step S206, the control section determines whether or not the setting button 46 and the minus button 48 are simultaneously pressed (steps). S208). When the control unit determines “YES” in step S208, the control unit reduces the operating time of the internal fan by 10 minutes and reduces the value displayed by blinking on the set temperature display unit 50 by one. (Step S209). When Step S209 is completed or when the control unit determines “NO” in Step S208, the control unit starts the time counting by the timer (Step S210).

  Next, as shown in FIG. 7, the control unit determines whether or not the time measured by the timer has reached the set time (step S211). The set time at this time is, for example, 5 seconds. If the control unit determines “NO” in step S211, that is, if the setting button 46 and the plus button 47 or the minus button 48 are simultaneously pressed within 5 seconds, the process returns to step S206. On the other hand, when the control unit determines “YES” in step S211, that is, when the setting button 46 and the plus button 47 or the minus button 48 are not simultaneously pressed within 5 seconds, the control unit controls the respective buttons 46. The fan operating time set value calculated based on the number of times of pressing ~ 48 is stored in the memory and the blinking display on the set temperature display unit 50 is terminated (step S212). As a result, the control unit sets the operating time of the internal fan, which is operated in a state where the operation of the refrigerating device is stopped, as the fan operating time set value stored in the memory. Then, the process proceeds to step S213, and the fan operation time setting mode ends.

  When the fan operation time set value is set as described above, the control unit stops the operation of the cooling device while continuing the operation of the internal fan, for example, when the cooling switch is turned off during the normal refrigeration operation. At the same time, the timer starts counting, and when the timer counts the fan operating time set value (operating time) set based on the operation of the fan operating time adjusting operation unit, the operation of the internal fan is stopped. With this configuration, it is possible to adjust the operating time of the internal fan when the cooling switch is turned off to be optimum according to the usage status of the hot and cold distribution vehicle. As compared with the case where the operating time of the internal fan when the cooling switch is turned off is fixed to a constant value as described above, it is possible to further reduce power consumption. Moreover, since the fan operation time adjustment operation unit 45 is also used by the temperature adjustment operation unit 141, if the fan operation time adjustment operation unit is provided separately from the temperature adjustment operation unit on the side surface of the hot and cold serving vehicle. By comparison, cost reduction can be achieved.

  As described above, according to the present embodiment, the fan operation time adjustment operation unit 45 capable of adjusting the operation time of the internal fan is provided, and the control unit controls the timer when the cooling switch is OFF. When the time measurement by the timer is started and the time measured by the timer reaches the operation time set based on the operation of the fan operation time adjustment operation unit 45, the operation of the internal fan is stopped. In this way, by operating the fan operation time adjustment operation unit 45, the operation time of the in-compartment fan when the cooling switch is turned off is optimized according to the usage status of the hot and cold distribution car. Since the adjustment can be performed, the power consumption can be further reduced as compared with the case where the operating time of the internal fan when the cooling switch is turned off is fixed to a constant value.

  Further, a temperature adjustment operation unit 141 capable of adjusting the temperature inside the storage main body is provided, and the fan operation time adjustment operation unit 45 is also used by the temperature adjustment operation unit 141. With this configuration, the temperature inside the storage main body can be adjusted by operating the temperature adjustment operation unit 141. The temperature adjustment operation unit 141 also serves as the fan operation time adjustment operation unit 45, which is suitable for cost reduction.

<Other Embodiments>
The present invention is not limited to the embodiments described above with reference to the drawings, and the following embodiments are also included in the technical scope of the present invention.
(1) In each of the above-described embodiments, the case where the temperature adjustment operation unit (fan operation time adjustment operation unit) is installed on the inner surface of the storage main body is shown. However, the temperature adjustment operation unit is installed on the outer surface of the storage main body. It doesn't matter.
(2) Besides the above-described second embodiment, the specific number and type of each button provided in the temperature adjustment operation unit (fan operation time adjustment operation unit) can be appropriately changed.
(3) In addition to the second embodiment described above, the specific operation method of each button provided in the temperature adjustment operation unit (fan operation time adjustment operation unit) in the fan operation time setting mode can be appropriately changed. Further, the specific set time until the timer in the fan operation time setting mode expires can be changed appropriately.
(4) In the second embodiment described above, the case where the fan operation time adjustment operation unit is also used as the temperature adjustment operation unit has been described. However, a fan operation time adjustment operation unit is provided separately from the temperature adjustment operation unit. I don't mind.
(5) In each of the above-described embodiments, the cold / hot storage device is exemplified by a hot / cold distribution vehicle in which the partition wall is fixed in the storage chamber, but the invention is not limited thereto. For example, it is possible to exemplify a refrigerating and refrigerating apparatus configured to house a cart provided with a partition wall in a station provided with a refrigerating and refrigerating means.
(6) In each of the above-described embodiments, the hot and cold serving vehicle including the heating chamber in addition to the cooling chamber has been described as an example, but the serving vehicle may include only the cooling chamber.
(7) In each of the above-described embodiments, the hot and cold serving vehicle in which the caster is provided on the bottom surface of the storage main body is illustrated, but the fixed hot and cold storage without the caster or the cooling storage without the caster and the heating chamber. It doesn't matter.

  DESCRIPTION OF SYMBOLS 10 ... Hot / cold distribution vehicle (cooling storage), 11 ... Storage main body, 13 ... Casters, 25 ... Cooling device, 26 ... Cooler, 27 ... Internal fan, 30 ... Tray (storage), 40 ... Control part, 41 , 141 ... Temperature adjustment operation part, 42 ... Cooling switch, 43 ... Timer, 44 ... Power plug (power supply part), 45 ... Fan operation time adjustment operation part

Claims (5)

A storage main body for accommodating stored materials,
A cooling device having a cooler,
An internal fan that circulates air cooled by heat exchange with the cooler in the storage main body,
A cooling switch that can be turned on and off,
A timer that measures time,
A control unit for controlling the operation of the cooling device and the internal fan, wherein the cooling device and the internal fan are operated when the cooling switch is ON, and the cooling is performed when the cooling switch is OFF. A control unit that stops the operation of the device and starts the time measurement of the timer, and stops the operation of the internal fan based on the time measurement by the timer ,
It is equipped with a power supply unit that receives power supply,
When the supply of electric power is started in the power supply unit, the control unit starts the operation of the internal fan and starts the time measurement of the timer, and if the cooling switch is OFF, the control unit is based on the time measurement by the timer. A cooling storage cabinet that stops the operation of the internal fan and starts the operation of the cooling device when the cooling switch is ON . It is provided with a fan operation time adjustment operation section capable of adjusting the operation time of the internal fan.
If the cooling switch is OFF, the control unit starts the time measurement of the timer, and when the time measurement by the timer reaches the operation time set based on the operation of the fan operation time adjustment operation unit, the inside of the refrigerator claim 1 Symbol placement of the cooling storage stops the operation of the fan. A storage main body for accommodating stored materials,
A cooling device having a cooler,
An internal fan that circulates air cooled by heat exchange with the cooler in the storage main body,
A cooling switch that can be turned on and off,
A timer that measures time,
A control unit for controlling the operation of the cooling device and the internal fan, wherein the cooling device and the internal fan are operated when the cooling switch is ON, and the cooling is performed when the cooling switch is OFF. A control unit that stops the operation of the device and starts the time measurement of the timer, and stops the operation of the internal fan based on the time measurement by the timer,
It is provided with a fan operation time adjustment operation section capable of adjusting the operation time of the internal fan.
If the cooling switch is OFF, the control unit starts the time measurement of the timer, and when the time measurement by the timer reaches the operation time set based on the operation of the fan operation time adjustment operation unit, the inside of the refrigerator Cooling storage that shuts down the fan . It is equipped with a temperature adjusting operation unit capable of adjusting the temperature in the storage body,
The cooling storage according to claim 2 or 3, wherein the fan operation time adjusting operation unit is also used by the temperature adjusting operation unit.   The cooling storage according to any one of claims 1 to 4, further comprising a caster provided on a bottom surface of the storage main body so as to be movable.

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