Temperature regulating device and vehicle

Abstract

The temperature adjustment device includes a temperature adjustment circuit that circulates a heat medium; a first temperature sensor that measures the temperature of the heat medium; a storage battery that is thermally connected to the temperature adjustment circuit; a second temperature sensor that measures the temperature of the storage battery; a heat generating device that is thermally connected to the temperature adjustment circuit; a flow path switching device that switches the flow path of the temperature adjustment circuit to form a first temperature adjustment circuit that connects the downstream side of the storage battery to the upstream side of the heat generating device and a second temperature adjustment circuit that connects the downstream side of the storage battery to the downstream side of the heat generating device; and a control device that has an intermittent operation mode that controls the flow path switching device based on the measurement results of the first temperature sensor and the second temperature sensor to intermittently switch the temperature adjustment circuit to the first temperature adjustment circuit or the second temperature adjustment circuit.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2022-059643, filed on March 31, 2022, the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to temperature control devices and vehicles. Background Technology

[0003] In recent years, research and development related to secondary batteries that contribute to energy efficiency have been carried out in order to ensure that more people have access to reasonable, reliable, sustainable and advanced energy.

[0004] Japanese Patent Application Publication No. 2019-23059 discloses a cooling water flow path that includes a first cooling water flow path for cooling a storage battery and a second cooling water flow path for cooling an electric generator and an inverter. The first cooling water flow path and the second cooling water flow path are connected or disconnected according to the external gas temperature or the battery water temperature. Summary of the Invention

[0005] However, in technologies related to secondary batteries, the weight and cost of temperature control devices have become issues. For example, batteries and heat-generating devices (such as the aforementioned electric generators and inverters) have two cooling water flow paths as described above because they are managed at different temperatures. When the temperatures of these two cooling water circuits are managed independently or connected to each other, flow path components such as flow path switching valves and flow path piping are added.

[0006] The purpose of this application is to achieve miniaturization and weight reduction of the temperature regulation device for batteries and heating equipment. Furthermore, the solution presented in this application contributes to energy efficiency.

[0007] The temperature control device and vehicle of the present invention adopt the following structure.

[0008] (1): A temperature regulating device according to one aspect of the present invention comprises: a temperature regulating loop that circulates a heat medium; a first temperature sensor that measures the temperature of the heat medium; a battery that is thermally connected to the temperature regulating loop; a second temperature sensor that measures the temperature of the battery; a heating device that is thermally connected to the temperature regulating loop; a flow path switching device that switches the flow path of the temperature regulating loop to form a first temperature regulating loop connecting the downstream side of the battery to the upstream side of the heating device and a second temperature regulating loop connecting the downstream side of the battery to the downstream side of the heating device; and a control device having an intermittent operation mode, the intermittent operation mode controlling the flow path switching device based on the measurement results of the first temperature sensor and the second temperature sensor, so that the temperature regulating loop intermittently switches to the first temperature regulating loop or the second temperature regulating loop.

[0009] (2): In the above scheme (1), the higher the measurement result of the first temperature sensor, the shorter the time for the control device to intermittently switch the first temperature regulation loop and the second temperature regulation loop.

[0010] (3): In the above scheme (1) or (2), the heat capacity of the heating device may be smaller than the heat capacity of the battery.

[0011] (4): In the above scheme (3), the control device may also have a normal operation mode. In the normal operation mode, when the measurement results of the first temperature sensor and the second temperature sensor are less than a predetermined threshold and the measurement result of the first temperature sensor is greater than or equal to the measurement result of the second temperature sensor, the flow path switching device is controlled and the temperature regulation loop is set as the second temperature regulation loop. When the measurement results of the first temperature sensor and the second temperature sensor are less than the threshold and the measurement result of the first temperature sensor is less than the measurement result of the second temperature sensor, the control device switches from the normal operation mode to the intermittent operation mode.

[0012] (5): In the above (4) scheme, it is also possible to have a heat sink, which is thermally connected to the temperature regulation circuit to cool the heat medium. The control device has a cooling operation mode, which cools the heat medium through the heat sink when the measurement results of the first temperature sensor and the second temperature sensor are above the threshold.

[0013] (6): In the above schemes (1) to (5), the heating device may also include a drive device for a drive motor.

[0014] (7): In the above schemes (1) to (6), the heating device may also include a charging device that is electrically connected to an external power source and charges the battery.

[0015] (8): A vehicle according to one aspect of the present invention is equipped with the temperature regulation device of the above-described (1) to (7) aspects.

[0016] According to the schemes (1) to (8) above, since the flow path of the temperature regulation circuit can be switched intermittently to manage the temperature of the battery and the heating device, the flow path components of the temperature regulation device can be reduced compared to the case where the temperature regulation circuits of the battery and the heating device are independent. Therefore, it is possible to achieve miniaturization and weight reduction of the temperature regulation device for the battery and the heating device. Attached Figure Description

[0017] Figure 1 This is a circuit diagram illustrating the structure of a temperature regulating device according to one embodiment.

[0018] Figure 2 This is a block diagram illustrating the control system of a temperature regulating device according to one embodiment.

[0019] Figure 3 This is a diagram illustrating an intermittent operation mode of one embodiment.

[0020] Figure 4 This is a diagram illustrating the typical operation mode of one implementation method.

[0021] Figure 5 This is a diagram illustrating the cooling operation mode of one embodiment.

[0022] Figure 6 This is a control diagram illustrating a control device according to one embodiment.

[0023] Figure 7 This is a perspective view showing the outline structure of a vehicle according to one embodiment. Detailed Implementation

[0024] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0025] Figure 1 This is a circuit diagram showing the structure of a temperature regulating device 1 according to one embodiment.

[0026] Temperature regulation device 1 is mounted on a vehicle not shown. This vehicle may be, for example, an electric motor with only a motor as a drive source, or a hybrid motor with both a motor and an internal combustion engine.

[0027] like Figure 1 As shown, the temperature regulating device 1 includes a temperature regulating loop 10 that circulates the heat medium.

[0028] A battery 20 is thermally connected to the temperature regulation circuit 10. Additionally, a drive unit 21 and a charging unit 22 are thermally connected to the temperature regulation circuit 10 as heat-generating devices. The heat-generating devices (drive unit 21 and charging unit 22) are located downstream of the battery 20 within the temperature regulation circuit 10.

[0029] The storage battery 20 supplies power to at least one of the vehicle's electrical system, air conditioning system, and drive system. The storage battery 20 is a rechargeable battery. Preferably, it is a solid-state battery with a wide operating temperature range during charging and discharging. A solid-state battery is a battery that contains no electrolyte but has a solid electrolyte filled between the positive and negative electrodes. It should be noted that existing lithium-ion batteries with electrolyte can also be used as rechargeable batteries.

[0030] Drive unit 21 is electrically connected to battery 20, driving vehicle motor 23 (see reference). Figure 2 , Figure 7 The drive unit 21 includes an inverter (power conversion device) that converts DC power to AC power and vice versa. The charging unit 22 is electrically connected to the battery 20 and charges the battery 20 when electrically connected to an external power source (not shown). The charging unit 22 includes a DC / DC converter that boosts or bucks DC voltage.

[0031] The heat capacity of these heat-generating devices (drive unit 21, charging unit 22) is smaller than that of the battery 20. In this embodiment, the heat capacity of each drive unit 21 and charging unit 22 is smaller than that of the battery 20. Furthermore, even when the heat capacities of the drive unit 21 and charging unit 22 are combined, the total heat capacity is still smaller than that of the battery 20.

[0032] The temperature control loop 10 includes a reserve tank 11, a first pump 12, a hydrothermal electric heater 13, a second pump 14, a radiator 15, a first flow path switching device 40, and a second flow path switching device 41. The reserve tank 11 stores a heat medium and injects it into the temperature control loop 10. The heat medium may be, for example, water, a cooling fluid, or a heat exchanger. The first pump 12 is located downstream of the reserve tank 11 in the temperature control loop 10. The first pump 12 supplies the heat medium injected from the reserve tank 11 to the hydrothermal electric heater 13.

[0033] A hydrothermal electric heater 13 is disposed downstream of the first pump 12 in the temperature control circuit 10. The hydrothermal electric heater 13 heats the heat transfer medium. A second pump 14 is disposed downstream of the hydrothermal electric heater 13 in the temperature control circuit 10. The second pump 14 supplies the heat transfer medium flowing in the hydrothermal electric heater 13 to the battery 20. A radiator 15 is disposed downstream of the drive unit 21 in the temperature control circuit 10. The radiator 15 facilitates heat exchange between the heat transfer medium and the external gas.

[0034] The first flow path switching device 40 includes a first flow path switching valve 40a and a first bypass flow path 40b. The first flow path switching valve 40a is an electrically operated multi-way valve (a three-way valve in this embodiment) disposed downstream of the battery 20. The first flow path switching valve 40a guides the heat medium flowing in the battery 20 upstream of the charging device 22, or guides it upstream of the hydrothermal electric heater 13 via the first bypass flow path 40b.

[0035] The second flow path switching device 41 includes a second flow path switching valve 41a and a second bypass flow path 41b. The second flow path switching valve 41a is an electrically operated multi-way valve (a three-way valve in this embodiment) located downstream of the drive device 21. The second flow path switching valve 41a guides the hot medium flowing in the drive device 21 upstream of the radiator 15, or upstream of the storage tank 11 via the second bypass flow path 41b. It should be noted that if an opening and closing device (e.g., an active grill shutter) is provided to open and close the vents for taking in external air from the radiator 15, the second flow path switching device 41 may not be necessary.

[0036] The temperature control device 1 described above includes multiple temperature sensors 30, 31, 32, and 33. Temperature sensor 30 is located at the inlet of the battery 20 in the temperature control loop 10 to measure the temperature of the heat transfer medium. Temperature sensor 31 is located at the outlet of the radiator 15 in the temperature control loop 10 to measure the temperature of the heat transfer medium. Temperature sensor 32 is located in the battery 20 to measure its temperature. Temperature sensor 33 is located in the drive unit 21 to measure its temperature.

[0037] Next, the control system of the temperature regulating device 1 with the above structure will be described.

[0038] Figure 2 This is a block diagram illustrating the control system of a temperature regulating device 1 according to one embodiment.

[0039] like Figure 2 As shown, the temperature regulating device 1 includes a control device 50, which is electrically connected to the aforementioned plurality of temperature sensors 30, 31, 32, 33, the first flow path switching device 40, and the second flow path switching device 41, and is also electrically connected to the aforementioned battery 20 and heating devices (drive device 21, charging device 22). The control device 50 has multiple operating modes for managing the temperature of the battery 20 and the heating devices.

[0040] Figure 3 This is a diagram illustrating an intermittent operation mode 10A of one embodiment.

[0041] like Figure 3 As shown, the control device 50 has an intermittent operation mode 10A, which controls the first flow path switching device 40 to intermittently switch the temperature regulation circuit 10 to either the first temperature regulation circuit 10a or the second temperature regulation circuit 10b. The intermittent operation mode 10A is mainly used to heat the battery 20, which has a large heat capacity.

[0042] It should be noted that in intermittent operation mode 10A, the hydrothermal electric heater 13 heats the heat medium (hydrothermal electric heater ON). In addition, in intermittent operation mode 10A, the second flow path switching device 41 connects the downstream side of the drive device 21 and the upstream side of the storage tank 11 (radiator OFF).

[0043] In the first temperature regulation loop 10a, the first flow path switching device 40 connects the downstream side of the battery 20 and the upstream side of the hydrothermal electric heater 13. This first temperature regulation loop 10a is a small circulation loop that allows the heat medium heated by the hydrothermal electric heater 13 and delivered from the second pump 14 to return to the hydrothermal electric heater 13 via the battery 20, the first flow path switching valve 40a, and the first bypass flow path 40b. It should be noted that when switching to the first temperature regulation loop 10a, the first pump 12 stops.

[0044] On the other hand, in the second temperature regulation loop 10b, the first flow path switching device 40 connects the downstream side of the battery 20 and the upstream side of the charging device 22. This second temperature regulation loop 10b is a large circulation loop that allows the heat medium delivered from the first pump 12 to return to the storage tank 11 through the hydrothermal electric heater 13, the second pump 14, the battery 20, the first flow path switching valve 40a, the charging device 22, the drive device 21, the second flow path switching valve 41a, and the second bypass flow path 41b.

[0045] Figure 4 This is a diagram illustrating the normal operating mode 10B of one embodiment.

[0046] like Figure 4 As shown, the control device 50 has a normal operating mode 10B, which controls the first flow path switching device 40 and sets the temperature regulation loop 10 as the aforementioned second temperature regulation loop 10b. The normal operating mode 10B is an operating mode for heating the low-temperature battery 20 and the heating equipment.

[0047] It should be noted that in normal operating mode 10B, the hydrothermal electric heater 13 heats the heat medium (hydrothermal electric heater ON). In addition, in normal operating mode 10B, the second flow path switching device 41 connects the downstream side of the drive device 21 and the upstream side of the storage tank 11 (radiator OFF).

[0048] In normal operating mode 10B, the heat medium delivered from the first pump 12 is returned to the storage tank 11 via the hydrothermal electric heater 13, the second pump 14, the battery 20, the first flow path switching valve 40a, the charging device 22, the drive device 21, the second flow path switching valve 41a, and the second bypass flow path 41b.

[0049] Figure 5This is a diagram illustrating a cooling operation mode 10C according to one embodiment.

[0050] like Figure 5 As shown, the control device 50 has a cooling operation mode 10C, which controls the second flow path switching device 41 to cool the heat medium through the radiator 15. The cooling operation mode 10C is an operation mode for cooling the high-temperature battery 20 and heat-generating equipment.

[0051] It should be noted that in cooling operation mode 10C, the hydrothermal electric heater 13 does not heat the heat medium (hydrothermal electric heater OFF). In addition, in cooling operation mode 10C, the second flow path switching device 41 connects the downstream side of the drive device 21 and the upstream side of the radiator 15 (radiator ON).

[0052] In the cooling operation mode 10C, the heat medium delivered from the first pump 12 is returned to the storage tank 11 through the water-heated electric heater 13, the second pump 14, the battery 20, the first flow path switching valve 40a, the charging device 22, the drive device 21, the second flow path switching valve 41a, and the radiator 15.

[0053] Figure 6 This is a control diagram showing a control device 50 according to one embodiment.

[0054] like Figure 6 As shown, the control device 50 switches the operating mode to intermittent operating mode 10A, normal operating mode 10B, or cooling operating mode 10C based on the measurement results (TW) of temperature sensor 30 (temperature of the heat medium at the inlet of battery 20) and temperature sensor 31 (temperature of battery 20 itself).

[0055] Specifically, when the measurement results of temperature sensor 30 and temperature sensor 32 are less than 40°C (the specified threshold) and the measurement result (TW) of temperature sensor 30 is greater than or equal to the measurement result (Tbatt) of temperature sensor 32, the control device 50 heats the battery 20 and the heating device in normal operation mode 10B.

[0056] In normal operating mode 10B, such as Figure 4 As shown, the heat medium heated by the hydrothermal electric heater 13 is supplied to the battery 20 and the heating devices (drive unit 21, charging unit 22). This allows for the equal heating of both the battery 20 and the heating devices. It should be noted that the heat capacity of the heating devices is smaller than that of the battery 20; therefore, in normal operating mode 10B, the heating devices tend to heat up before the battery 20.

[0057] When the measured values ​​of temperature sensors 30 and 32 are less than 40°C (the specified threshold) and the measured value (TW) of temperature sensor 30 is less than the measured value (Tbatt) of temperature sensor 32, the control device 50 switches the operating mode from normal operating mode 10B to intermittent operating mode 10A to heat the battery 20 and the heating equipment.

[0058] In intermittent operation mode 10A, such as Figure 3 As shown, the temperature regulation circuit 10 intermittently switches between a first temperature regulation circuit 10a and a second temperature regulation circuit 10b. When switching to the first temperature regulation circuit 10a, the battery 20 is heated by a heat medium heated by a hydrothermal electric heater 13. At this time, the heating device side, where no heat medium flows, is not heated, but the heat medium is heated by the driving heat of the heating device.

[0059] Furthermore, when switching to the second temperature regulation circuit 10b, the battery 20 is heated by a heat medium heated by a hydrothermal electric heater 13, and is also heated by a heat medium driven by a heating device during the switching to the first temperature regulation circuit 10a. In this way, by switching to the intermittent operation mode 10A, the battery 20 can be heated preferentially over the heating device.

[0060] like Figure 6 As shown, the higher the temperature sensor 30's measurement result (TW), the shorter the time the control device 50 intermittently switches between the first temperature regulation loop 10a and the second temperature regulation loop 10b. In this embodiment, the control device 50 shortens the time intermittently switching between the first temperature regulation loop 10a and the second temperature regulation loop 10b in stages (in this embodiment, three stages: large (e.g., 5 minutes), medium (e.g., 3 minutes), and small (e.g., 1 minute)) within the temperature sensor 30's measurement result (TW) range of 0°C to 40°C. This avoids overheating of the battery 20 in the intermittent operation mode 10A.

[0061] Therefore, the battery 20 can be heated from a low-temperature output reduction state to a normal output state (e.g., 40°C to 60°C) where the required output can be delivered.

[0062] In addition, when the temperature sensor 30 and temperature sensor 32 measure 40°C or higher (a specified threshold), the control device 50 cools the battery 20 and the heat-generating equipment in cooling operation mode 10C.

[0063] In cooling operation mode 10C, the water-heated electric heater 13 is OFF, and the radiator 15 is ON, such as... Figure 5As shown, the heat transfer medium cooled by the radiator 15 is supplied to the battery 20 and the heat-generating equipment. This allows the battery 20 and the heat-generating equipment to be cooled, preventing them from reaching high temperatures (e.g., above 60°C), and enabling the implementation of a power-saving mode (PS) in the control system.

[0064] According to the temperature regulating device 1 with the above structure, since it can intermittently switch the flow path of the temperature regulating circuit 10 to manage the temperature of the battery 20 almost independently from the heating device, the flow path components of the temperature regulating device 1 (e.g., the same flow path components arranged in parallel with the first flow path switching device 40) can be reduced compared to the case where the temperature regulating circuit 10 of the battery 20 and the heating device are independent. Therefore, it is possible to achieve miniaturization and weight reduction of the temperature regulating device 1 for the battery 20 and the heating device.

[0065] Thus, the temperature regulating device 1 according to the above embodiment includes: a temperature regulating loop 10 that circulates a heat medium; a temperature sensor 30 (first temperature sensor) that measures the temperature of the heat medium; a battery 20 that is thermally connected to the temperature regulating loop 10; a temperature sensor 32 (second temperature sensor) that measures the temperature of the battery 20; a heating device (driving device 21, charging device 22) that is thermally connected to the temperature regulating loop 10; a first flow path switching device 40 (flow path switching device) that switches the flow path of the temperature regulating loop 10 to form a first temperature regulating loop 10a that connects the downstream side of the battery 20 to the upstream side of the heating device and a second temperature regulating loop 10b that connects the downstream side of the battery 20 to the downstream side of the heating device; and a control device 50 that has an intermittent operation mode 10A, which controls the first flow path switching device 40 based on the measurement results of the temperature sensor 30 and the temperature sensor 32, so that the temperature regulating loop 10 intermittently switches to either the first temperature regulating loop 10a or the second temperature regulating loop 10b. Based on this structure, the temperature regulation device 1 of the battery 20 and the heating device can be miniaturized and made lighter.

[0066] Furthermore, in this embodiment, the higher the measurement result of the temperature sensor 32, the shorter the time that the control device 50 intermittently switches between the first temperature regulation loop 10a and the second temperature regulation loop 10b. According to this structure, overheating of the battery 20 can be avoided in the intermittent operation mode 10A.

[0067] Furthermore, in this embodiment, the heat capacity of the heating device is smaller than that of the battery 20. Based on this structure, the temperature of the heat transfer medium adapts to the temperature of the heating device, thus enabling the management of the heating state of the heating device based on temperature changes in the heat transfer medium (measurement results from the temperature sensor 30).

[0068] Furthermore, in this embodiment, the control device 50 has a normal operation mode 10B. In this normal operation mode 10B, when the measurement results of temperature sensors 30 and 32 are less than 40°C (a predetermined threshold) and the measurement result of temperature sensor 30 is greater than or equal to the measurement result of temperature sensor 32, the first flow path switching device 40 is controlled, and the temperature regulation loop 10 is set as the second temperature regulation loop 10b. When the measurement results of temperature sensors 30 and 32 are less than 40°C and the measurement result of temperature sensor 30 is less than the measurement result of temperature sensor 32, the device switches from the normal operation mode 10B to the intermittent operation mode 10A. According to this structure, the battery 20 and the heating device can be heated in the same way in the normal operation mode 10B. If the heating device with a smaller heat capacity than the battery 20 heats up first, the device switches to the intermittent operation mode 10A to prioritize heating the battery 20.

[0069] Furthermore, in this embodiment, a heat sink 15 is provided that is thermally connected to the temperature regulation circuit 10 and cools the heat medium. The control device 50 has a cooling operation mode 10C, which cools the heat medium through the heat sink 15 when the temperature sensor 30 and temperature sensor 32 measure 40°C or higher. According to this structure, the battery 20 and the heat-generating device can be cooled to prevent the battery 20 and the heat-generating device from reaching high temperatures (e.g., above 60°C), and PS (Power Save) mode is implemented in the control.

[0070] Furthermore, in this embodiment, the heating device includes a drive unit 21 for driving the motor 23. With this structure, the battery 20 can be heated via a heat transfer medium heated by the heat generated by the drive unit 21.

[0071] Furthermore, in this embodiment, the heating device includes a charging device 22 that is electrically connected to an external power source and charges the battery 20. According to this structure, the battery 20 can be heated via a heat transfer medium heated by the heating of the charging device 22.

[0072] Figure 7 This is a perspective view showing the outline structure of a vehicle 100 according to one embodiment.

[0073] In the body 101 of the vehicle 100, a battery casing 103 for housing the battery 20 is mounted under the floor of the passenger compartment 102. A motor compartment 104 is located at the front of the vehicle 100. The motor compartment 104 houses a motor 23, a drive unit 21, a branch unit 106, a charging device 22, and the like.

[0074] The rotational driving force of motor 23 is transmitted to shaft 107. Front wheels 108 of vehicle 100 are connected to both ends of shaft 107. Drive unit 21 is disposed above motor 23 and directly fastened to the housing of motor 23. Drive unit 21 is electrically connected to the connector of battery housing 103 via power cable 111. Alternatively, drive unit 21 is electrically connected to motor 23, for example, via a three-phase bus. Drive unit 21 drives and controls motor 23 using power supplied from battery 20.

[0075] The branch unit 106 and the charging device 22 are arranged side by side. The branch unit 106 and the charging device 22 are positioned above the drive unit 21. The branch unit 106 and the charging device 22 are arranged separately from the drive unit 21. The branch unit 106 and the battery housing 103 are electrically connected via a cable 110 with connectors at both ends.

[0076] Branch unit 106 is electrically connected to charging device 22. Charging device 22 is connected to a general external power source, such as a household power supply, to charge battery 20. Charging device 22 and branch unit 106 are electrically connected via a cable (not shown) with connectors at both ends.

[0077] By incorporating the aforementioned temperature regulation device 1, the vehicle 100 can achieve miniaturization and weight reduction of the temperature regulation device 1 of the battery 20. In this way, by miniaturizing and reducing the weight of the temperature regulation device 1, the electric driving range can be increased, and vehicle efficiency can be improved.

[0078] The preferred embodiments of the present invention have been described and illustrated above. However, it should be understood that these are exemplary embodiments of the present invention and should not be considered as limiting embodiments. Additions, omissions, substitutions, and other modifications can be made without departing from the scope of the present invention. Therefore, the present invention should not be considered as limited by the foregoing description, but rather by the technical solutions.

[0079] For example, in the above embodiment, the threshold for switching from intermittent operation mode 10A or normal operation mode 10B to cooling operation mode 10C is set to 40°C. However, this threshold is just one example and can be appropriately changed according to the specifications of the battery 20 and the heating device.

Claims

1. A temperature regulating device, wherein, The temperature regulating device includes: Temperature regulation circuit, which circulates the heat medium; A first temperature sensor measures the temperature of the thermal medium; The storage battery is thermally connected to the temperature regulation circuit. The second temperature sensor measures the temperature of the battery. A heating device, which is thermally connected to the temperature regulation circuit; A flow path switching device switches the flow path of the temperature regulation circuit to form a first temperature regulation circuit that connects the downstream side of the battery to the downstream side of the heating device and a second temperature regulation circuit that connects the downstream side of the battery to the upstream side of the heating device. as well as The control device has an intermittent operation mode, which controls the flow path switching device based on the measurement results of the first temperature sensor and the second temperature sensor, causing the temperature regulating loop to intermittently switch between the first temperature regulating loop and the second temperature regulating loop. The flow path switching device has a bypass flow path and a flow path switching valve in the temperature regulation circuit. The bypass flow path connects the downstream side of the battery to the downstream side of the heating device. The flow path switching valve opens and closes the bypass flow path to switch between the first temperature regulation circuit and the second temperature regulation circuit.

2. The temperature regulating device according to claim 1, wherein, The higher the measurement result of the first temperature sensor, the shorter the time the control device intermittently switches between the first temperature regulation loop and the second temperature regulation loop.

3. The temperature regulating device according to claim 1, wherein, The heat capacity of the heating device is smaller than that of the battery.

4. The temperature regulating device according to claim 3, wherein, The control device has a normal operating mode. In this normal operating mode, when the measurement results of the first temperature sensor and the second temperature sensor are less than a predetermined threshold and the measurement result of the first temperature sensor is greater than or equal to the measurement result of the second temperature sensor, the flow path switching device is controlled to set the temperature regulation loop as the second temperature regulation loop. When the measurement results of the first temperature sensor and the second temperature sensor are less than the threshold and the measurement result of the first temperature sensor is less than the measurement result of the second temperature sensor, the control device switches from the normal operation mode to the intermittent operation mode.

5. The temperature regulating device according to claim 4, wherein, The temperature regulating device includes a heat sink, which is thermally connected to the temperature regulating circuit to cool the heat medium. The control device has a cooling operation mode, in which the heat medium is cooled by the heat sink when the measurement results of the first temperature sensor and the second temperature sensor are above the threshold.

6. The temperature regulating device according to any one of claims 1 to 5, wherein, The heating device includes a drive unit for a drive motor.

7. The temperature regulating device according to any one of claims 1 to 5, wherein, The heating device includes a charging device that is electrically connected to an external power source and charges the battery.

8. A vehicle, wherein, The vehicle is equipped with a temperature regulating device as described in any one of claims 1 to 5.

Images