JP4911425B2 - Incubator for vehicle - Google Patents

Description

  The present invention relates to an in-vehicle warmer that keeps a warehousing item cooled or heated at room temperature.

  A vehicle that uses a refrigeration cycle such as an air conditioner for a vehicle and cools and stores stored goods such as can juice in the case by intermittently flowing a refrigerant through a refrigeration evaporator provided in the case in the passenger compartment. There is a refrigerator (for example, Patent Document 1). There is also a vehicular refrigerator that guides cold air cooled by a heat exchanger for cooling to cool the goods (for example, Patent Document 2).

  These vehicular refrigerators allow the user to carry the goods in a cooled state by using the cold air from the vehicular air conditioner.

JP 2002-264638 A JP 2005-170324 A

  However, if the incoming goods are cooled more than necessary in these vehicular refrigerators, there is a problem that the feeling of air conditioning in the vehicle and the cool-down performance are adversely affected. Therefore, although temperature setting is also performed by the user, it is difficult to say that efficient cooling is necessarily performed due to forgetting to change the setting or inappropriate setting.

  Similarly, even in a heat retaining cabinet that heats the incoming goods by heating with a heater or the like, excessive heating has a problem of adversely affecting the power source and power source of the vehicle.

  An object of the present invention is to provide an in-vehicle warmer that efficiently cools or heats a vehicle with a power source or a power source mounted on the vehicle to reduce a load on the power source or power source of the vehicle.

Means for Solving the Problems and Effects of the Invention

The in-vehicle warmer of the present invention for solving the above problems is
A warmer body that is placed in the vehicle and holds incoming goods;
A temperature control operation unit for performing the cooling or heating by a power source or a power source mounted on the vehicle in order to keep the incoming goods in the heat insulation body in a state of being cooled or heated from room temperature.
A warehousing presence / absence detecting means for detecting the presence / absence of the warehousing in the main body,
Temperature detecting means for detecting the surface temperature of the stored goods and the temperature distribution of the wall surface in the insulated body when the received goods presence / absence detecting means detects that the stored goods are present in the insulated body; ,
Based on the detection result of the surface temperature of the temperature detection means and the temperature distribution of the wall surface in the heat insulation body, the temperature control means for operating the temperature control section to cool or heat the heat insulation body. , equipped with a,
The temperature control unit includes a heating mechanism, and when the warehousing presence / absence detecting unit detects that the warehousing is present, the temperature control unit causes the heating mechanism to start a heating operation,
The temperature control means, when the surface temperature of the storage goods by the temperature detection means is lower than the heating temperature that is a predetermined constant temperature and suitable for heating and holding the storage goods, The temperature adjustment operation unit is heated so that the inside of the storage body reaches the heating temperature.

According to the above configuration, the presence / absence of the incoming goods can be detected by the incoming goods presence / absence detection means, and the surface temperature of the incoming goods and the temperature distribution of the wall surface in the main body can be detected by the temperature detection means. And the temperature control operation part is operated by the temperature control means to cool or heat the inside of the heat insulation box main body, so that the incoming goods can be kept warm in a cooled or heated state. Detects presence / absence of warehousing, surface temperature of warehousing, and temperature distribution of wall surface in main body of heat insulation, and operates temperature control unit based on the detection result, cooling or heating inside main body of heat insulation Therefore, it is possible to prevent excessive cooling or heating and perform appropriate and efficient cooling or heating. Further, since it is not necessary for the user to set the temperature, it is possible to prevent the temperature control from being performed inappropriately. Therefore, the burden on the power source and power source of the vehicle can be reduced.

  A temperature control means can be comprised so that cooling or heating by a temperature control operation | movement part may be stopped, when it is detected by the warehousing presence-and-absence detection means that there is no warehousing thing in a thermal insulation main body. By configuring in this way, it is possible to prevent the user from forgetting to stop the cooling or heating operation when there is no incoming goods. That is, it is possible to prevent unnecessary cooling or heating operation.

  When the temperature adjustment operation unit includes a refrigeration mechanism and the warehousing presence / absence detection means detects that there is an incoming goods, the temperature control means can be configured to cause the refrigeration mechanism to start a cooling operation. By configuring in this way, it is possible to prevent the user from forgetting to perform the cooling operation when there is an incoming goods.

  When the temperature adjustment operation unit includes a heating mechanism and the warehousing presence / absence detection means detects that there is an incoming goods, the temperature control means can be configured to cause the heating mechanism to start the heating operation. By configuring in this way, it is possible to prevent the user from forgetting to perform the heating operation when there is an incoming goods.

  Furthermore, it has temperature control switching means for switching between a cooling and heating mode and a heating and holding mode in the main body by user operation, and the temperature control means is set to the cooling and heating mode by the temperature control switching means, and the incoming goods When the presence / absence detection means detects that there is an incoming goods, the temperature adjustment operation unit can be configured to perform a cooling operation. That is, the temperature control switching means can switch between the cooling and heating mode and the heating and heating mode, and the incoming goods can be cooled or heated to keep the temperature.

  The incoming / outgoing goods presence / absence detection means can be configured to include a load sensor that detects a load applied based on the weight of the incoming goods. By comprising in this way, the presence or absence of a receipt thing is detectable with a load sensor.

  The temperature detection means has a surface-type infrared sensor that detects the temperature distribution of the inner wall surface of the heat insulation box around the warehousing object and the surface of the warehousing object. It can also comprise so that a temperature operation part may be operated. A surface-type infrared sensor is formed by arranging a plurality of infrared detection elements to be detected in a non-contact manner in a matrix (plane). The inside of the main body can be divided into a plurality of areas, and the surface temperature of each area can be detected by each infrared detection element. By comprising in this way, a surface type infrared sensor can be used to detect the area of the central part of the heat insulation body as the surface temperature of the incoming goods and the area of the peripheral part as the wall surface temperature.

  Furthermore, the surface-type infrared sensor can be configured to be used also as a warehousing presence / absence detecting means for detecting the presence / absence of a warehousing item based on the temperature distribution information. That is, since the surface infrared sensor can detect the temperature distribution in the main body of the heat insulation box, it is possible to detect the presence or absence of an incoming goods having a temperature different from that of the inner wall surface of the heat insulation box main body.

  The temperature control means cools the temperature adjustment operation section so that the inside of the heat insulation body becomes a predetermined freezing temperature when the surface temperature of the goods received by the temperature detection means is lower than a predetermined frozen object determination threshold value. It can be configured to be. That is, the cooling operation can be performed so as to reach the freezing temperature depending on the surface temperature of the incoming goods.

  In addition, the temperature control means adjusts the inside of the heat insulation body to a predetermined refrigeration temperature higher than the freezing temperature when the surface temperature of the incoming goods by the temperature detection means exceeds a predetermined frozen object determination threshold. The temperature operation part is cooled. In other words, the refrigeration operation can be performed so as to reach the refrigeration temperature depending on the surface temperature of the incoming goods.

  By comprising in this way, it can be made to operate | move at freezing temperature or refrigeration temperature based on the detection result of the surface temperature of the warehouse goods by a temperature detection means. Therefore, there is no need to set the temperature by the user, and the temperature of the in-vehicle warmer can be controlled in accordance with the surface temperature of the incoming goods.

The temperature detection means detects the wall surface temperature in the main body of the heat insulation chamber, and the temperature adjustment operation part can be switched between the normal cooling mode and the strong cooling mode having a higher cooling capacity than that,
The temperature control means causes the temperature adjustment operation unit to operate in the strong cooling mode when the temperature detection means detects that the wall surface temperature in the main body is higher than a certain temperature at the start of temperature control.

  In this way, when the wall surface temperature in the main body is higher than a certain temperature, the temperature adjustment operation unit is operated in the strong cooling mode, so that even if the wall surface temperature in the main body is high, Can be cooled. In other words, when the wall surface temperature in the main body is high, it takes a long time to cool the main body and the incoming goods to a predetermined temperature. Can be cooled to a predetermined temperature.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example in which an in-vehicle warmer (hereinafter also simply referred to as a warmer) 1 of the present invention is combined with a refrigeration cycle (refrigeration mechanism) of a vehicle air conditioner. The heat insulating cabinet 1 includes a door 2 that can be opened and closed on the heat insulating main body 3 and is disposed in the vehicle, and a stored item 31 such as food can be put into the heat insulating main body 3. Moreover, the warmer 1 is provided with a warmer evaporator 19 and a heater 8 (heating mechanism), and can cool or heat the incoming goods 31 to keep warm. In this specification, heat retention refers to maintaining within a predetermined temperature range by cooling or heating.

  The refrigeration cycle of the vehicle air conditioner includes a compressor 11 that varies the refrigerant discharge amount, a condenser 12 that cools the refrigerant gas back to liquid, and a receiver 13 that stores liquid refrigerant, and cools the air in the vehicle interior. An air conditioner evaporator (evaporator) 16 and a heat insulation chamber evaporator 19 for cooling the air in the heat insulation chamber 1 are provided in parallel.

  The compressor 11 is coupled to a drive shaft of an automobile engine (not shown) via an electromagnetic clutch 11a. The discharge side of the compressor 11 is connected to the condenser 12, and the discharge side of the condenser 12 is connected to the receiver 13. On the discharge side of the receiver 13, there are provided an air conditioner solenoid valve 14, an air conditioner decompression device, in this example a temperature-operated expansion valve 15, and an air conditioner evaporator 16 connected thereto. A blower fan 16a for air-conditioning air is disposed on the upstream side. The refrigerant discharge side of the evaporator 16 is connected to the suction side of the compressor 11.

  The compressor 11 is a variable displacement compressor of a swash plate type that is driven by an electromagnetic clutch 11a that is rotated by an engine. The compressor 11 controls the inclination angle of the swash plate by a control device so as to vary the refrigerant discharge amount. It is configured. The condenser 12 is a heat exchanger that condenses the high-temperature refrigerant compressed by the compressor 11 by exchanging heat with the atmosphere using a condensing fan. The refrigerant condensed by the condenser 11 flows out to the receiver (liquid receiver) 13. The receiver 13 is a container that separates the gas-liquid refrigerant and stores the liquid refrigerant. The air conditioner solenoid valve 14 flows and blocks the refrigerant to the air conditioner evaporator 16 side passage. The temperature-actuated expansion valve 15 is a valve that depressurizes the refrigerant introduced by the receiver 13.

  On the other hand, the incubator electromagnetic valve 17, the incubator constant pressure expansion valve 18, and the incubator evaporator 19 of the in-vehicle incubator 1 are in parallel with the air conditioner solenoid valve 14, the air conditioner expansion valve 15, and the air conditioner evaporator 16. Is provided. The check valve 20 is provided on the downstream side of the warmer storage evaporator 19, and the discharge side of the check valve 20 is connected to the suction side of the compressor 11, and refrigerant gas is supplied to the compressor suction side. Only pass in the direction.

  In addition, a warming chamber solenoid valve 17 is provided on the upstream side of the warming chamber constant pressure expansion valve 18. By opening and closing the warming chamber solenoid valve 17, the refrigerant flows into and shuts off the passage in the warming chamber evaporator 19. .

  As a control means for the refrigeration cycle shown in FIG. 1, an air conditioner control unit 5 that controls the vehicle air conditioner and a heat storage controller 6 that controls the in-vehicle heat storage 1 are provided. The air conditioner control unit 5 controls the air conditioner solenoid valve 14 and the like. Details of the air-conditioning control by the air-conditioning controller 5 are omitted. The heat storage controller 6 is for controlling the temperature of the heat storage 1, and is composed of a microprocessor including a CPU, a ROM, and a RAM. The ROM stores a program executed by the CPU and data necessary for the program. The RAM is used as a work area when the CPU executes a program. A signal of the warming chamber switch 7 such as ON / OFF of the warming chamber 1 and switching between the cooling warming mode and the heating warming mode is input to the warming chamber control unit 6. Further, the warmer storage controller 6 outputs the opening and closing of the electromagnetic valve 17 for the warmer and the drive of the blower 25, the control signal of the heater 8, and the open / close signal of the electromagnetic valve 14 for the air conditioner is output from the air conditioner control unit 5. . Therefore, the warm storage controller 6 is a temperature control means and a temperature control switching means.

  A warmer evaporator 19 accommodated in the warmer body 3 is composed of a series of multi-hole flat tubes bent in a meandering manner, and a refrigerant inlet pipe and a refrigerant outlet pipe are joined to both ends thereof. . Moreover, the corrugated fin is provided in the evaporator 19 for heat insulation so that the air from the air blower 25 may be cooled efficiently. The blower 25 performs forced convection of the internal air.

  A constant pressure expansion valve 18 constituting a pressure reducing device for a heat storage is connected to the inlet side of the heat storage warehouse evaporator 19, and the constant pressure expansion valve 18 has a downstream pressure (that is, a refrigerant pressure on the evaporator 19 side) set value. When the pressure decreases, the valve is opened, and thereafter the refrigerant flow rate is adjusted so as to maintain the set pressure.

  Further, a check valve 20 is connected to the outlet side of the warmer storage evaporator 19, and the check valve 20 has a refrigerant pressure in the refrigerant pipe equal to or higher than a set value set by the heat storage constant pressure expansion valve 18. In this case, the refrigerant is prevented from flowing back to the warmer evaporator 19 side. The constant temperature expansion valve 18 for the heat insulation and the check valve 20 are accommodated in the heat insulation 1 and the refrigerant pipe protrudes outside the heat insulation 1 and is connected to the refrigeration cycle of FIG. The refrigeration cycle constitutes a temperature adjustment operation unit.

  FIG. 2 schematically shows the heat insulator 1. As shown in FIG. 2 (a), the warming cabinet 1 includes a load sensor 33 that detects a load load based on the weight of the incoming goods 31, and a warmer main body 3 around the incoming goods 31 along with the surface of the incoming goods 31. And a surface-type infrared sensor 32 for detecting the temperature distribution of the inner wall surface. If the goods 31 exist in the heat insulation main body 3, the signal of the load sensor 33 will be input into the heat insulation control part 6 as a voltage according to the magnitude | size of a load. That is, the load sensor 33 constitutes an incoming / outgoing object presence / absence detection means.

  Further, the surface infrared sensor 32 is attached to, for example, the upper part in the heat insulation body 3 and, as shown in FIG. 2B, the heat insulation body 3 is divided into a plurality of areas, and the surface temperature of each area is divided. A plurality of infrared detection elements that detect non-contact in a matrix (planar shape). The surface temperature of the inner wall of the main body of the heat insulation box or the incoming goods 31 is measured, and the temperature distribution information is input to the heat insulation box controller 6. As will be described later, the temperature control of the heat insulation box 1 is performed based on the temperature distribution measurement result by the surface infrared sensor 32. The surface infrared sensor 32 constitutes temperature detection means.

  Next, the heat retaining process by the heat retaining chamber 1 will be described. The user can switch between the cooling and warming mode and the heating and warming mode in the warming cabinet body 3 by operating the warming switch 7. The cooling and refrigeration control when the user selects the cooling and keeping mode will be described with reference to FIGS.

  The heat storage controller 6 determines whether or not the goods 31 such as food are present in the heat storage body 3 by the load sensor 33 (S1). If there is no incoming goods 31 (S2: NO), control will be stopped (S7). In other words, the heat storage controller 6 stops the cooling by the refrigeration cycle that is the temperature adjustment operation unit when the load sensor 33 that is the storage presence / absence detection means detects that there is no storage 31 in the heat storage body 3. Let

  On the other hand, if the warm storage control unit 6 determines that there is the incoming goods 31 (S2: YES), the surface infrared sensor 32 determines (S3). If the surface temperature of the incoming goods 31 by the surface-type infrared sensor 32 is lower than the frozen object determination threshold (S4: NO), the heat storage controller 6 performs the refrigeration control of S5, and if it is equal to or higher than the frozen object determination threshold (S4). : YES), the refrigeration control of S6 is performed.

  Here, the frozen matter determination threshold is a temperature for determining whether the incoming goods 31 are frozen or not, and can be set to 0 ° C., for example. In S4, if it falls below the frozen object determination threshold value, it proceeds to refrigeration control and if it exceeds the frozen object determination threshold value, it proceeds to refrigeration control. However, in the case of the frozen object determination threshold value, refrigeration control is performed as in the embodiment. Alternatively, refrigeration control may be performed (that is, refrigeration control if it is greater than or equal to the frozen object determination threshold) (that is, refrigeration control if less than or equal to the frozen object determination threshold).

  The refrigeration control in S5 will be described with reference to FIG. If the wall surface temperature in the heat storage 1 is higher than a predetermined freezing temperature (for example, −5 ° C.) (S11: YES), the heat storage controller 6 performs strong freezing (strong cooling mode) (S12). . On the other hand, if the wall surface temperature in the heat insulation box 1 is equal to or lower than the freezing temperature (S11: NO), weak freezing (normal cooling mode) is performed (S13).

  The refrigeration control in S6 will be described with reference to FIG. The heat storage controller 6 determines whether the surface temperature of the incoming goods 31 is higher than the refrigeration temperature (S21). The refrigeration temperature is a predetermined constant temperature and is a temperature suitable for refrigeration and keeping the storage goods 31 and can be set to about 5 ° C., for example. If the surface temperature of the incoming goods 31 is higher than the refrigeration temperature, the process proceeds to S23.

  On the other hand, if the surface temperature of the incoming goods 31 is not higher than the refrigeration temperature (S21: NO), the warm storage controller 6 determines whether the wall surface temperature of the warm storage 1 is higher than the refrigeration temperature (S22). If the wall surface temperature of the heat storage 1 is higher than the refrigeration temperature (S22: YES), the heat storage controller 6 opens and closes the electromagnetic valve 17 for the heat storage and switches to strong refrigeration (strong cooling mode) (S23).

  If the wall surface temperature of the heat storage 1 is not higher than the refrigeration temperature (S22: NO), the heat storage control unit 6 opens and closes the electromagnetic valve 17 for the heat storage and sets it to weak refrigeration (normal cooling mode) (S24).

  As described above, the wall surface temperature in the heat insulation body 3 and the surface temperature of the incoming goods 31 are detected, and automatic switching between freezing and refrigeration and switching between the strong cooling mode and the normal cooling mode are performed according to these temperatures. Thereby, even if a user does not set, cooling of the goods 31 which is efficient and has little load to the power supply or power source mounted in the vehicle can be performed.

  Next, the heating control when the user operates the heat insulation switch 7 to select the heat insulation mode will be described with reference to FIGS. 6 and 7.

  The heat storage controller 6 determines whether or not the goods 31 such as food are present in the heat storage body 3 by the load sensor 33 (T1). If there is no incoming goods 31 (T2: NO), the control is stopped (T4). In other words, the heat storage controller 6 stops heating by the heater 8 which is a temperature control operation unit when the load sensor 33 which is a storage object presence / absence detection unit detects that there is no storage object 31 in the heat storage body 3. Let

  On the other hand, if the warm storage control part 6 determines with the incoming goods 31 (T2: YES), heating intensity control of T3 will be performed.

  The heating intensity control of T3 will be described with reference to FIG. The heat storage controller 6 determines whether the surface temperature of the incoming goods 31 is lower than the heating temperature (T11). The heating temperature is a predetermined temperature that is suitable for heating and holding the goods 31 and can be set to about 50 ° C., for example. If the surface temperature of the incoming goods 31 is lower than the heating temperature, the process proceeds to T13.

  If the surface temperature of the incoming goods 31 is not lower than the heating temperature (T11: NO), the thermal insulation controller 6 determines whether the wall surface temperature of the thermal insulation 1 is lower than the heating temperature (T12). If the wall surface temperature of the heat insulation box 1 is lower than the heating temperature (T12: YES), the heat insulation box control unit 6 sets the heater 8 to strong heating (strong heating mode) (T13).

  If the wall surface temperature of the heat insulation box 1 is not lower than the heating temperature (T12: NO), the heat insulation box control unit 6 sets the heater 8 to weak heating (normal heating mode) (T14).

  As described above, the user sets the temperature by detecting the wall surface temperature in the main body 3 and the surface temperature of the incoming goods 31 and switching between the strong heating mode and the normal heating mode according to these temperatures. Even if it is not necessary, it is possible to cool the incoming goods 31 with high efficiency and with less load on the power source or power source mounted on the vehicle.

  In the above embodiment, the load sensor 33 detects the presence or absence of the warehousing object 31, but when the surface infrared sensor 32 generates a temperature distribution in the heat insulating body 3, it is determined that the warehousing object 31 is present. You may comprise. Specifically, as shown in FIG. 8, when the surface infrared sensor 32 detects an area having a temperature lower (or higher) than the wall surface in the heat insulating body 3, it is determined that the incoming goods 31 have been received. It can be constituted as follows. That is, when the warehousing thing 31 (for example, ice cream) is stored in the heat insulation main body 3, the area | region where temperature is lower than the surroundings will arise, and it can be judged that it was warehousing by this.

The schematic diagram of the freezing mechanism and heating mechanism in one Embodiment of this invention. The figure which shows the load sensor and the surface-type infrared sensor with which the thermal insulation main body was equipped. The flowchart which shows freezing / refrigeration control. The flowchart which shows freezing control. The flowchart which shows refrigeration control. The flowchart which shows heating control. The flowchart which shows heating strength control. The figure explaining the example which detects warehousing with a surface type infrared sensor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Insulation chamber 2 Door 3 Insulation chamber body 5 Air-conditioner control part 6 Insulation controller 8 Heater 11 Compressor 12 Condenser 13 Receiver 14 Air conditioner solenoid valve 15 Air conditioner expansion valve (Temperature operation type expansion valve)
16 Evaporator for air conditioner (evaporator)
17 Heat-reservoir solenoid valve 18 Constant-temperature expansion valve for heat-retainer 19 Heat-reservoir evaporator 25 Blower 31 Receipt 32 Surface-type infrared sensor 33 Load sensor

Claims (10)

A warmer body that is placed in the vehicle and holds incoming goods;
A temperature control operation unit for performing the cooling or heating by a power source or a power source mounted on the vehicle in order to keep the incoming goods in the heat insulation body in a state of being cooled or heated from room temperature.
A warehousing presence / absence detecting means for detecting the presence / absence of the warehousing in the main body,
Temperature detecting means for detecting the surface temperature of the stored goods and the temperature distribution of the wall surface in the insulated body when the received goods presence / absence detecting means detects that the stored goods are present in the insulated body; ,
Based on the detection result of the surface temperature of the temperature detection means and the temperature distribution of the wall surface in the heat insulation body, the temperature control means for operating the temperature control section to cool or heat the heat insulation body. , equipped with a,
The temperature control unit includes a heating mechanism, and when the warehousing presence / absence detecting unit detects that the warehousing is present, the temperature control unit causes the heating mechanism to start a heating operation,
The temperature control means, when the surface temperature of the storage goods by the temperature detection means is lower than the heating temperature that is a predetermined constant temperature and suitable for heating and holding the storage goods, An in-vehicle warmer that heats the temperature adjustment operation unit so that the inside of the storage body reaches the heating temperature.   2. The vehicle-mounted device according to claim 1, wherein the temperature control unit stops cooling or heating by the temperature control operation unit when it is detected by the warehousing presence / absence detection unit that there is no warehousing in the main body. Incubator.   The temperature control unit includes a refrigeration mechanism, and the temperature control unit causes the refrigeration mechanism to start a cooling operation when the warehousing presence / absence detection unit detects that the warehousing item is present. The in-vehicle warmer as described in 1. A temperature control switching means for switching between a cooling and heating mode and a heating and holding mode in the main body by a user operation;
The temperature control means performs the cooling operation of the temperature adjusting operation unit when the temperature control switching means is set to the cooling and heat retention mode and the warehousing presence / absence detecting means detects the presence of the warehousing goods. The in-vehicle warmer according to claim 3. The in-vehicle warmer according to any one of claims 1 to 4, wherein the incoming / outgoing goods presence / absence detecting means includes a load sensor that detects a load load based on a weight of the incoming goods. The temperature detection means has a surface-type infrared sensor that detects the temperature distribution of the inner wall surface of the heat insulation body around the warehousing object together with the surface of the warehousing object,
  The in-vehicle warmer according to any one of claims 1 to 5, wherein the temperature adjustment operation unit is operated based on temperature distribution information detected by the surface infrared sensor. The in-vehicle warmer according to claim 6, wherein the surface-type infrared sensor is also used as an incoming goods presence / absence detecting means for detecting the presence / absence of the incoming goods based on the temperature distribution information. The temperature control means is configured to adjust the temperature so that the inside of the main body is at a predetermined refrigeration temperature when the surface temperature of the incoming goods by the temperature detection means is lower than a predetermined frozen substance determination threshold. The in-vehicle warmer according to any one of claims 3 to 7, wherein the operation unit is cooled. The temperature control means has a predetermined refrigeration temperature in which the inside of the heat insulation body is higher than the freezing temperature when the surface temperature of the storage goods by the temperature detection means exceeds a predetermined frozen object determination threshold value. The in-vehicle warmer according to claim 8, wherein the temperature adjustment operation unit is cooled so as to become. The temperature detection means detects the wall surface temperature in the heat insulation body, and the temperature adjustment operation unit can be switched between a normal cooling mode and a strong cooling mode having a higher cooling capacity than that,
The temperature control means causes the temperature adjustment operation unit to operate in the strong cooling mode when the temperature detection means detects that the wall surface temperature in the heat insulation body is higher than a certain temperature at the start of temperature control. Item 10. The in-vehicle warmer according to Item 8 or 9.

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