Cooling storage

Abstract

To provide a cooling storage capable of suppressing the deterioration of articles stored in storage chambers.SOLUTION: The cooling storage includes: a box body 11 having storage chambers 20 capable of storing articles therein; a cooling device 60 for cooling the storage chambers 20; a speaker 67 capable of issuing a warning; a control unit 68; and a temperature sensor 45 capable of measuring the temperature of the storage chambers 20. When the temperature of the storage chamber 20 measured by the temperature sensors 45 is lower than a preset temperature T4, the control unit 68 causes a notification process for operating the speaker 67 that issues a warning to be executed.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The technology disclosed herein relates to cooling storage. [Background technology]

[0002] A conventional cooling storage cabinet is described in the following Patent Document 1. The cooling storage cabinet described in Patent Document 1 is equipped with a temperature sensor (means for detecting temperature inside a refrigerator compartment) capable of measuring the temperature of the storage compartment. In addition, a typical cooling storage cabinet is configured to maintain the storage compartment at a preset temperature by controlling the operation and stopping of a cooling device based on the temperature of the storage compartment measured by the temperature sensor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-10240 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, if an abnormality occurs in the cooling device and the cooling device operates excessively, there is a concern that the storage compartment may be cooled excessively and the temperature of the storage compartment may become lower than the set temperature, which may cause deterioration of the items stored in the storage compartment.

[0005] The technology disclosed in this specification was developed based on the above circumstances, and aims to provide a refrigerated storage facility that can prevent deterioration of items stored in the storage room. [Means for solving the problem]

[0006] As a means for solving the above problems, the refrigerated storage facility disclosed in this specification comprises a box having a storage chamber capable of storing items inside, a cooling device for cooling the storage chamber, an alarm unit capable of issuing an alarm, a control unit, and a temperature sensor capable of measuring the temperature of the storage chamber, and is characterized in that the control unit executes an alarm process to operate the alarm unit to issue an alarm when the temperature of the storage chamber measured by the temperature sensor becomes lower than a predetermined set temperature.

[0007] The box has a cooler chamber provided adjacent to the storage chamber, and the cooling device is provided in the cooler chamber and includes a suction unit that sucks air from within the storage chamber, and a cooler provided in the cooler chamber, and the air from within the storage chamber sucked by the suction unit is cooled by the cooler and then sent to the storage chamber, the temperature sensor is disposed in the cooler chamber on a path along which the air sucked by the suction unit reaches the cooler, and the control unit executes a cooling operation that operates the cooling device when a measured temperature, which is the temperature of the storage chamber measured by the temperature sensor, is equal to or higher than an operating temperature that is higher than a preset target temperature by a first predetermined value, and stops the cooling device when the measured temperature is equal to or lower than a stop temperature that is lower than the target temperature by a second predetermined value, The second predetermined value may be set to a value smaller than the first predetermined value.

[0008] Further, the box body has a cooler chamber provided adjacent to the storage chamber, and the cooling device includes an suction unit provided in the cooler chamber for sucking in air from within the storage chamber, and a cooler provided in the cooler chamber, and the air from within the storage chamber sucked in by the suction unit is cooled by the cooler and then sent to the storage chamber, the temperature sensor is disposed in the cooler chamber on a path from the cooler to the storage chamber through which the air sucked in by the suction unit travels, and the control unit executes a cooling operation that operates the cooling device when a measured temperature, which is the temperature of the storage chamber measured by the temperature sensor, is equal to or higher than an operating temperature that is higher than a preset target set temperature by a first predetermined value, and stops the cooling device when the measured temperature is equal to or lower than a stop temperature that is lower than the target set temperature by a second predetermined value, and the first predetermined value is set to a value smaller than the second predetermined value.

[0009] The storage chamber may also include an interior light disposed in the storage chamber, a door attached to the box body and capable of opening and closing the storage chamber, and a door detection unit capable of detecting opening and closing of the door, and the control unit may be configured to turn on the interior light when the open door state continues for a predetermined waiting time or longer after the door detection unit detects that the door is open, and to turn off the interior light thereafter when the door detection unit detects that the door is closed.

[0010] The storage device further includes a door attached to the box body and capable of opening and closing the storage chamber, a door detection unit capable of detecting the opening and closing of the door, and a door lamp that notifies that the door is in an open state, and the control unit can turn on or flash the door lamp when the open door state is detected by the door detection unit.

[0011] The control unit may further include a speaker, and the control unit may output a sound from the speaker when the door is open for a predetermined period of time or longer, and may further include a setting change unit capable of changing the set period of time.

[0012] The device may also include an operation unit that accepts input operations by an operator, and a panel member that can be switched between a closed state that covers the operation unit and an open state that does not cover the operation unit, and the control unit may be configured to stop the output of sound from the speaker when the operation unit is operated.

[0013] The cooling storage facility may also include a speaker, a display unit capable of displaying images, and a backup power supply that supplies power to the control unit, the speaker, and the display unit in a power outage state in which power supply to the cooling storage facility from outside is stopped, and the control unit may output sound from the speaker and display an error number on the display unit in the power outage state.

[0014] In addition, when the power supply to the cooling storage facility is resumed from the external power supply after the power outage, the control unit can be configured to output a sound from the speaker and display an error number on the display unit. Effect of the Invention

[0015] According to the present invention, a refrigerated storage facility can be provided that is capable of preventing deterioration of items stored in a storage chamber. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view showing a cooling storage unit according to an embodiment of the present invention; [Diagram 2] A perspective view of the cooling storage unit with the door removed. [Diagram 3] A side view showing the storage chamber and the cooler chamber. [Figure 4] Perspective view of the machine room [Diagram 5] Front view showing the operation box [Figure 6] Cross-section showing the front panel in the closed position [Figure 7] Cutaway view showing the front panel in the open position [Figure 8] Block diagram showing the electrical configuration of the cooling storage [Figure 9] Timing chart showing the temperature measured by the temperature sensor during cooling operation [Figure 10] 11 is a timing chart showing the temperature measured by the temperature sensor in the notification process. [Figure 11] A flowchart showing the processing of the control unit related to the door lamp and the interior lamp. [Figure 12] A flowchart showing the processing of the control unit related to the opening and closing of the door and the speaker. [Figure 13] Flowchart showing the process of the control unit during a power outage DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] An embodiment of the present invention will be described with reference to Figs. 1 to 13. In this embodiment, a medicine cooling storage unit that stores medicines (items) in a cooled state will be illustrated. As shown in Figs. 1 and 2, a cooling storage unit 10 includes a heat-insulating box 11 having a storage chamber 20 capable of storing items therein, and four doors 21, 22, 23, and 24 that are attached to the box 11 and can open and close the storage chamber 20. As shown in Fig. 3, the box 11 has a double structure including a box-shaped outer wall 12 made of a metal plate (stainless steel plate, etc.) and a box-shaped inner wall 13 made of a metal plate such as a stainless steel plate that is disposed inside the outer wall 12. A heat insulating material 14 made of a foamed resin (urethane foam, melamine foam, etc.) is foam-filled between the outer wall 12 and the inner wall 13.

[0018] As shown in Fig. 2, the box 11 has an opening 16 that is rectangular in front view. The opening 16 opens forward and communicates with the storage chamber 20. The box 11 has a cross-shaped partition 17 that divides the opening 16 into four openings. The doors 21, 22, 23, and 24 are arranged to cover each of the openings divided into four by the partition 17. This allows an operator to put items in and take items out of the storage chamber 20 through the opening 16 by opening any of the doors 21, 22, 23, and 24.

[0019] 1 and 2, a machine room 50 is provided above the box 11. The machine room 50 is composed of a plurality of panels (a front panel 51 and side panels 52, 53) rising from the peripheral edge of the upper wall portion 31 of the box 11. The side panels 52, 53 are arranged to rise from the side edges of the upper wall portion 31 of the box 11. The front panel 51 is attached to a pair of left and right support columns 81, 81 rising from the upper wall portion 31 of the box 11.

[0020] The machine room 50 accommodates a filter 61, a condenser 62, a condenser fan 63, a compressor 64, an electrical equipment box 65, a battery 66, and a speaker 67 (see FIG. 4). The condenser 62, the condenser fan 63, the compressor 64, the electrical equipment box 65, and the speaker 67 are mounted on a base 58 that is a rectangular plate in plan view, forming a unit. This allows each device mounted on the base 58 to be detached together with the base 58, making it easy to perform maintenance, etc.

[0021] An external power source (not shown) is connected to the electrical box 65 via a socket or the like. This allows power to be supplied to the cooling storage cabinet 10 (more specifically, each device provided in the cooling storage cabinet) via the electrical box 65. The battery 66 (backup power source) supplies power to each device (control unit 68, speaker 67, and display unit 55) provided in the cooling storage cabinet 10 in a power outage state in which power supply from the outside (external power source) to the cooling storage cabinet 10 is stopped. The speaker 67 (alarm unit) is capable of notifying the user of a warning by emitting a sound. Note that if the battery 66 has a sufficient capacity, power may be supplied from the battery 66 to the cooling device 60 in a power outage state.

[0022] As shown in FIG. 3, a through hole 31A is formed in the upper wall 31 of the box 11, penetrating in the vertical direction. The upper part of the through hole 31A is blocked by a base 58. The box 11 has a cooler chamber 40 provided adjacent to the storage chamber 20. A drain pan 41 is attached to the lower surface of the upper wall 31 so as to cover the through hole 31A from below. The drain pan 41 is made of sheet metal, and is shaped so as to be inclined downward as it approaches the rear wall 32 of the box 11. The cooler chamber 40 is a space between the drain pan 41 and the base 58 in the box 11, and is disposed above the storage chamber 20.

[0023] The cooler chamber 40 is provided with a suction section 42 (internal fan) that sucks air from the storage chamber 20 and sends it to the cooler chamber 40, a cooler 43, and a temperature sensor 45. The cooler 43 is disposed behind the suction section 42 (on the right side of FIG. 3) and cools the air sucked by the suction section 42. The temperature sensor 45 is disposed above the suction section 42 and is disposed on a path in the cooler chamber 40 from the air sucked by the suction section 42 to the cooler 43. For this reason, the temperature sensor 45 can measure the temperature of the air sucked by the suction section 42 (and thus the temperature of the storage chamber 20). A blowing section 41A that opens in the vertical direction is provided at the rear portion of the drain pan 41. The air (cold air) from the storage chamber 20 sucked by the suction section 42 is cooled by the cooler 43 and then sent to the storage chamber 20 through the blowing section 41A.

[0024] The cooler 43 is connected to the condenser 62 and the compressor 64 by a refrigerant pipe through which the refrigerant circulates, forming a known refrigeration cycle. The refrigerant compressed by the compressor 64 passes through the refrigerant pipe and dissipates heat in the condenser 62. Then, in the cooler 43, the air sent from the storage chamber 20 to the cooler 43 by the suction unit 42 is cooled by heat exchange with the refrigerant that has dissipated heat, becoming cold air. The filter 61, the condenser 62, the condenser fan 63, the compressor 64, the suction unit 42, and the cooler 43 constitute a cooling device 60 for cooling the inside of the storage chamber 20.

[0025] As shown in Fig. 2, in the storage chamber 20, shelves 70 attached to the inner surface of the box body 11 are arranged in multiple levels in the vertical direction. A platform 71 on which articles can be placed is placed on the shelves 70. In addition, as shown in Fig. 3, in the storage chamber 20, an interior light 25 having a vertically elongated shape is disposed on the back side of the partition 17.

[0026] 2, a door detection unit 29 is provided on the front surface of the box body 11. Specifically, two door detection units 29 are provided on the front surface of the top wall portion 31 of the box body 11, and two door detection units 29 are provided on the front surface of the bottom wall portion 33 of the box body 11. Each door detection unit 29 is configured to be able to individually detect the opening and closing of each of the doors 21, 22, 23, 24 overlapping in front of it.

[0027] Door detection unit 29 is configured with, for example, a reed switch. Each of doors 21, 22, 23, 24 is provided with a magnet (not shown), and when each of doors 21, 22, 23, 24 is opened, the magnet moves away from door detection unit 29, thereby detecting that each of doors 21, 22, 23, 24 is opened. When open doors 21, 22, 23, 24 are closed, the magnet moves closer to door detection unit 29, thereby detecting that the door is closed.

[0028] An operation box 56 is disposed on the back side of the front panel 51. As shown in Fig. 5, the operation box 56 includes a display unit 55 and an operation unit 69. The display unit 55 is configured, for example, by a segment type liquid crystal panel or an LED, and is capable of displaying images (numbers, alphabets, etc.). The operation unit 69 accepts input operations by the user (operator), and is configured by buttons that can be pressed.

[0029] As shown in Figs. 6 and 7, the front panel 51 (panel member) is configured to be switchable between a closed state (see Fig. 6) in which the machine room 50 is covered and an open state (see Fig. 7) in which the machine room 50 is not covered. On the rear surface of the front panel 51, a plate-shaped mounting member 84 having a hook portion 83 is provided in a manner facing each of a pair of posts 81, 81. An opening 82 is formed in the upper portion of the post 81 supporting the front panel 51. A protruding piece 86 protruding rearward is formed at the lower end of the opening 82, and in the closed state, the hook portion 83 is configured to engage with the protruding piece 86 from the rear. As shown in Fig. 1, in the closed state, the front panel 51 is configured to cover the operation box 56 including the operating unit 69 from the front.

[0030] As shown in Fig. 7, in the open state, an upper wall portion 87 constituting the opening 82 fits into a recess 85 provided on the upper surface of the mounting member 84, and a rear surface 84A (the surface facing downward in Fig. 7) of the mounting member 84 is supported by a protrusion 86. In the open state, the front panel 51 is configured not to cover the operation unit 69. The user can operate the operation unit 69 by opening the front panel 51. The user can operate the cooling storage facility 10 and perform various settings (such as changing the set time T7, the target set temperature T1, and the set temperature T4, which will be described later) by operating the operation unit 69 (setting change unit).

[0031] As shown in FIG. 5, a door lamp 57 that notifies that the doors 21, 22, 23, and 24 are open is housed inside the operation box 56. A user can view the display unit 55 and the door lamp 57 from the front through a transparent member 51A (such as glass, see FIG. 1) provided on the front panel 51. The door lamp 57 is composed of, for example, an LED. Light emitted from the door lamp 57 can be emitted to the outside of the operation box 56 through a light transmitting portion 59 provided on the front wall of the operation box 56. The light transmitting portion 59 is shaped to resemble a mark indicating a door and the words "door open."

[0032] The control unit 68 is housed in the electrical equipment box 65. As shown in Fig. 8, the door detection unit 29, the temperature sensor 45, the battery 66, the operation unit 69, the timer unit 73, the memory unit 72, the interior light 25, the suction unit 42, the display unit 55, the door lamp 57, the condenser fan 63, the compressor 64, and the speaker 67 are electrically connected to the control unit 68. The control unit 68 is mainly composed of, for example, a CPU, and the memory unit 72 is composed of, for example, a ROM, a RAM, etc. The control unit 68 executes a program stored in the memory unit 72 to control each device (the interior light 25, the suction unit 42, the display unit 55, the door lamp 57, the condenser fan 63, the compressor 64, and the speaker 67) electrically connected to the control unit 68.

[0033] Next, the process of the control unit 68 regarding the cooling operation will be described. As shown in Fig. 9, the control unit 68 executes a cooling operation in which the cooling device 60 is operated when the temperature (measured temperature) of the storage chamber 20 measured by the temperature sensor 45 is equal to or higher than an operating temperature T2 that is higher than a preset target set temperature T1 by a first predetermined value A1, and the cooling device 60 is stopped when the measured temperature is equal to or lower than a stop temperature T3 that is lower than the target set temperature T1 by a second predetermined value A2.

[0034] As a result, as shown in FIG. 9, the temperature (measured temperature) of the storage chamber 20 varies within a range from the operating temperature T2 to the stop temperature T3 (first predetermined value A1+second predetermined value A2) with the target set temperature T1 as a reference. The second predetermined value A2 is set to a value smaller than the first predetermined value A1. Therefore, during the cooling operation, the temperature of the storage chamber 20 tends to be between the target set temperature T1 and the operating temperature T2. For example, the first predetermined value A1 is set to 1.7°C, and the second predetermined value A2 is set to 0.5°C, but is not limited thereto. The target set temperature T1 can be set, for example, between 2°C and 8°C, but is not limited thereto.

[0035] 10, when the temperature (measured temperature T5) of the storage chamber 20 measured by the temperature sensor 45 becomes lower than a preset temperature T4, the control unit 68 executes a notification process of activating the speaker 67 (notification unit) to notify the user of a warning (alarm sound). The set temperature T4 is set, for example, at a temperature lower than the stop temperature T3, and is set at a temperature at which the goods stored in the storage chamber 20 deteriorate. The temperature at which the goods deteriorate is, for example, a temperature at which the goods deteriorate due to a state change or chemical change, and one example is the temperature at which a chemical in the storage chamber freezes (for example, 0°C).

[0036] The set temperature T4 may be configured to be changeable depending on the items stored in the storage chamber 20, for example, the set temperature T4 may be changeable by operating the operation unit 69. An example of a situation in which the measured temperature T5 becomes lower than the stop temperature T3 is a situation in which an abnormality occurs in each device and the cooling device 60 (compressor 64, etc.) continues to operate without stopping even though the measured temperature T5 is equal to or lower than the stop temperature T3.

[0037] Next, the process of the control unit 68 regarding the opening and closing of the doors 21, 22, 23, 24 will be described. As shown in Fig. 11, when the door detection unit 29 detects that any of the doors 21, 22, 23, 24 is open (open door state) (step S11: "YES"), the control unit 68 turns on the door lamp 57 (step S12). Thereafter, when the open door state continues for a predetermined waiting time T6 or more (step S13: "YES"), the control unit 68 turns on the interior light 25 (step S14), and thereafter, when the door detection unit 29 detects that the doors 21, 22, 23, 24 are closed (step S15: "YES"), the control unit 68 turns off the interior light 25 (step S16). Note that instead of turning on the door lamp 57, the door lamp 57 may be blinked.

[0038] As shown in Fig. 12, when the door open state continues for a preset set time T7 or more (step S21: "YES"), the control unit 68 operates the speaker 67 to output a sound (warning sound) (step S22). After that, when the operation unit 69 is operated (step S23: "YES"), the control unit 68 stops the output of sound from the speaker 67 (step S24). The predetermined standby time T6 is set to a short time (e.g., 0.05 seconds) such that the user who opened the door does not feel a delay in the lighting of the interior light 25. The set time T7 is set to a time longer than the predetermined standby time T6, and can be set in 1-minute increments within a range of 0 to 15 minutes, for example.

[0039] Next, the process of the control unit 68 during a power outage will be described. In a power outage state in which power supply from the outside (external power source) is stopped, power is supplied from the battery 66 to the control unit 68. As shown in FIG. 13, when power is supplied from the battery 66 to the control unit 68 (power outage state, "YES" in step S31), the control unit 68 operates the speaker 67 to output sound and displays an error number (for example, E1, etc.) on the display unit 55 (step S32). After that, when power supply from the external power source to the cooling storage 10 is resumed from the power outage state ("YES" in step S33), the control unit 68 continues to output sound from the speaker 67 and display the error number on the display unit 55 (step S32). Note that the user can stop the output of sound from the speaker 67 and the display of the error number by the display unit 55 by operating the operation unit 69.

[0040] Next, the effects of this embodiment will be described. In this embodiment, the control unit 68 executes a notification process to operate the speaker 67 to issue a warning when the temperature of the storage chamber 20 measured by the temperature sensor 45 becomes lower than a preset temperature T4. This makes it possible to notify the user that the temperature of the storage chamber 20 has become lower than the preset temperature T4. This allows the user to quickly take appropriate measures, such as moving the items stored in the storage chamber 20 to another cooling storage, and prevents the items stored in the storage chamber 20 from deteriorating.

[0041] In addition, the control unit 68 performs a cooling operation in which the cooling device 60 is operated when the measured temperature T5, which is the temperature of the storage chamber 20 measured by the temperature sensor 45, is equal to or higher than an operating temperature T2 that is higher than a preset target set temperature T1 by a first predetermined value A1, and the cooling device 60 is stopped when the measured temperature T5 is equal to or lower than a stop temperature T3 that is lower than the target set temperature T1 by a second predetermined value A2, the second predetermined value A2 being set to a value smaller than the first predetermined value A1.

[0042] The air in the storage chamber 20 sucked by the suction unit 42 is cooled by the cooler 43 and then sent to the storage chamber 20. If the temperature sensor 45 is disposed on the air path from the suction unit 42 to the cooler 43, the air is sent in the order of the temperature sensor 45, the cooler 43, and the storage chamber 20. Therefore, the temperature of the air sent to the storage chamber 20 is lower than the temperature measured by the temperature sensor 45. In this case, when the cooling operation is performed based on the temperature measured by the temperature sensor 45, the temperature in the storage chamber 20 may become lower than the stop temperature T3.

[0043] In the above configuration, the second predetermined value A2 is set to a value smaller than the first predetermined value A1. In this way, the stop temperature T3 can be set to a higher temperature than when the first predetermined value A1 and the second predetermined value A2 are set to the same value, and the temperature in the storage chamber 20 can be prevented from becoming too low below the target set temperature T1, and can be prevented from falling below the temperature at which the goods stored in the storage chamber 20 deteriorate.

[0044] The location of the temperature sensor can be changed, and may be arranged on the path (between the cooler 43 and the blowing unit 41A) of the air sucked by the suction unit 42 in the cooler chamber 40 from the cooler 43 to the storage chamber 20, as shown by the temperature sensor 145 in FIG. 3. The air in the storage chamber 20 sucked by the suction unit 42 is cooled by the cooler 43 and then sent to the storage chamber 20. When the temperature sensor 145 is arranged on the path from the cooler 43 to the storage chamber 20, the air is sent in the order of the cooler 43, the temperature sensor 145, and the storage chamber 20. For this reason, the temperature of the air sent to the storage chamber 20 increases when it comes into contact with the items in the storage chamber 20, and as a result, the temperature of the storage chamber 20 becomes higher than the temperature measured by the temperature sensor 145.

[0045] For this reason, when the cooling operation is performed based on the temperature measured by the temperature sensor 145, the temperature inside the storage chamber 20 may become slightly higher than the operating temperature T2. In such a configuration, the first predetermined value A1 may be set to a value smaller than the second predetermined value A2. In this way, the operating temperature T2 can be set to a lower temperature compared to a case in which the first predetermined value A1 and the second predetermined value A2 are set to the same value, and a situation in which the temperature inside the storage chamber 20 becomes too high can be prevented.

[0046] The storage chamber 20 also includes an interior light 25 disposed in the storage chamber, doors 21, 22, 23, 24 attached to the box body 11 and capable of opening and closing the storage chamber 20, and a door detection unit 29 capable of detecting the opening and closing of the doors 21, 22, 23, 24. After the door detection unit 29 detects that the doors 21, 22, 23, 24 are open, if the open door state continues for a predetermined waiting time T6 or more, the control unit 68 turns on the interior light 25, and thereafter, if the door detection unit 29 detects that the doors 21, 22, 23, 24 are closed, the control unit 68 turns off the interior light 25.

[0047] The control unit 68 turns on the interior light 25 when the door open state continues for the specified standby time T6 or more. If the interior light 25 were turned on when the door was opened, there is a concern that the interior light 25 may be repeatedly turned on and off due to chattering related to the door detection unit 29. By turning on the interior light 25 when the door open state continues for the specified standby time T6 or more, it is possible to prevent the interior light 25 from being repeatedly turned on and off.

[0048] Also, a door lamp 57 is provided to notify that the doors 21, 22, 23, and 24 are in an open state, and the control unit 68 turns on (or blinks) the door lamp 57 when the open door state is detected by the door detection unit 29. By turning on the door lamp 57, it is possible to notify the user that the doors 21, 22, 23, and 24 are in an open state.

[0049] Also, a speaker 67 is provided, and the control unit 68 has an operation unit 69 (setting change unit) that outputs a sound from the speaker 67 when the door open state is equal to or longer than a preset set time T7, and can change the set time T7. By outputting a sound from the speaker 67, it is possible to notify the user that the doors 21, 22, 23, 24 are open. Also, since the set time T7 is changeable, the user can change the setting to make it easier to use.

[0050] The device also includes an operation unit 69 that accepts input operations by an operator, and a front panel 51 (panel member) that can be switched between a closed state that covers the operation unit 69 and an open state that does not cover the operation unit 69, and the control unit 68 stops the output of sound from the speaker 67 when the operation unit 69 is operated. When the doors 21, 22, 23, and 24 are open for a long period of time but sound output from the speaker 67 is not required (for example, when cleaning the inside of the storage room 20), the operator can stop the sound at will. In addition, in order for the operator to operate the operation unit 69, it is necessary to open the front panel 51 that covers the operation unit 69, so that it is possible to prevent a situation in which sound output from the speaker 67 is stopped due to an operation error by the operator.

[0051] The cooling storage facility 10 also includes a speaker 67, a display unit 55 capable of displaying images, and a battery 66 (backup power source) that supplies power to the control unit 68, the speaker 67, and the display unit 55 in a power outage state in which power supply to the cooling storage facility 10 from the outside is stopped, and the control unit 68, in a power outage state, causes the speaker 67 to output a sound and the display unit 55 to display an error number. By causing the speaker to output a sound and the display unit 55 to display an error number, the occurrence of a power outage can be reliably notified to the user.

[0052] Furthermore, when the power supply to the cooling storage facility 10 is resumed from the outside after a power outage, the control unit 68 causes the speaker 67 to output a sound and the display unit 55 to display an error number. Since the sound output from the speaker 67 and the display of the error number continue even after the power is restored, the user can be sure that there was a power outage.

[0053] <Other embodiments> The technology disclosed in this specification is not limited to the embodiments described above and illustrated in the drawings, and for example, the following embodiments are also included within the technical scope. (1) The set values ​​(target set temperature, measured temperature, set time, first predetermined value, second predetermined value) exemplified in the above embodiment are not limited to the above-mentioned values ​​and can be changed as appropriate. (2) In the above embodiment, the configuration in which the cooler chamber 40 is disposed above the storage chamber 20 is illustrated, but the present invention is not limited to this. For example, the storage chamber 20 and the cooler chamber 40 may be disposed adjacent to each other in the horizontal direction. (3) In the above embodiment, the speaker 67 is exemplified as the notification unit, but is not limited thereto. For example, the notification unit may be the display unit 55. In this case, when the temperature of the storage chamber 20 measured by the temperature sensor 45 becomes lower than the preset temperature T4, the control unit 68 can notify a warning by displaying an error number on the display unit 55. (4) In the above embodiment, a medicinal cooling storage unit that stores medicines as items within the box body has been described, but the items stored within the box body are not particularly limited. Chemicals, food, beverages, etc. may be stored within the box body as items. [Explanation of symbols]

[0054] 10...cooling storage, 11...box body, 20...storage room, 21, 22, 23, 24...door, 25...interior light, 29...door detection unit, 40...cooler room, 42...suction unit, 43...cooler, 45, 145...temperature sensor, 51...front panel (panel member), 55...display unit, 57...door lamp, 60...cooling device, 66...battery (backup power supply), 67...speaker, 68...control unit, 69...operation unit (setting change unit), T1...target set temperature, T2...operating temperature, T3...stop temperature, T4...set temperature, T5...measured temperature, T7...set time, A1...first predetermined value, A2...second predetermined value

Claims

1. A box having a storage chamber capable of storing an item therein; A cooling device for cooling the storage chamber; A notification unit capable of issuing a warning; A control unit; A temperature sensor capable of measuring the temperature of the storage chamber; Equipped with The control unit executes an alarm process to operate the alarm unit to issue an alert when the temperature of the storage chamber measured by the temperature sensor becomes lower than a preset temperature.

2. The box body has a cooler chamber provided adjacent to the storage chamber, The cooling device includes a suction unit provided in the cooler chamber and configured to suck air from within the storage chamber; A cooler provided in the cooler chamber, The air in the storage chamber sucked by the suction unit is cooled by the cooler and then sent to the storage chamber, The temperature sensor is disposed in the cooler chamber on a path through which the air sucked by the suction unit reaches the cooler, the control unit executes a cooling operation in which, when a measured temperature, which is the temperature of the storage chamber measured by the temperature sensor, is equal to or higher than an operating temperature that is higher than a preset target temperature by a first predetermined value, and, when the measured temperature is equal to or lower than a stop temperature that is lower than the target temperature by a second predetermined value, the control unit stops the cooling operation; The cooling storage facility according to claim 1 , wherein the second predetermined value is set to a value smaller than the first predetermined value.

3. The box body has a cooler chamber provided adjacent to the storage chamber, The cooling device includes a suction unit provided in the cooler chamber and configured to suck air from within the storage chamber; A cooler provided in the cooler chamber, The air in the storage chamber sucked by the suction unit is cooled by the cooler and then sent to the storage chamber, The temperature sensor is disposed in the cooler chamber on a path of the air sucked by the suction unit from the cooler to the storage chamber, The control unit is A cooling operation is executed in which the cooling device is operated when a measured temperature, which is the temperature of the storage chamber measured by the temperature sensor, is equal to or higher than an operating temperature that is higher than a preset target temperature by a first predetermined value, and the cooling device is stopped when the measured temperature is equal to or lower than a stop temperature that is lower than the target temperature by a second predetermined value; The cooling storage facility according to claim 1 , wherein the first predetermined value is set to a value smaller than the second predetermined value.

4. An interior light disposed in the storage chamber; a door attached to the box body and capable of opening and closing the storage chamber; a door detection unit capable of detecting whether the door is open or closed, 4. The cooling storage cabinet according to claim 1, wherein the control unit turns on the interior light when the open door state continues for a predetermined waiting time or more after the door detection unit detects that the door is open, and thereafter turns off the interior light when the door detection unit detects that the door is closed.

5. a door attached to the box body and capable of opening and closing the storage chamber; A door detection unit capable of detecting whether the door is open or closed; A door lamp that notifies that the door is in an open state; and Equipped with The cooling storage facility according to claim 1 , wherein the control unit turns on or blinks the door lamp when the open door state is detected by the door detection unit.

6. Equipped with a speaker, The control unit outputs a sound from the speaker when the door is open for a preset time period or longer. The cooling storage facility according to claim 5 , further comprising a setting change unit capable of changing the set time.

7. an operation unit that accepts an input operation by an operator; a panel member switchable between a closed state that covers the operation unit and an open state that does not cover the operation unit, The cooling storage facility according to claim 6 , wherein the control unit stops output of sound from the speaker when the operation unit is operated.

8. A speaker and A display unit capable of displaying an image; a standby power supply that supplies power to the control unit, the speaker, and the display unit in a power outage state in which power supply to the cooling storage from an external source is stopped; The cooling storage facility according to claim 1 , wherein the control unit, in the power outage state, causes the speaker to output a sound and the display unit to display an error number.

9. The cooling storage facility according to claim 8, wherein the control unit, when power supply to the cooling storage facility from an external source is resumed after the power outage, outputs a sound from the speaker and displays an error number on the display unit.

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