Battery temperature adjusting device, battery system and temperature adjusting device

Abstract

The utility model discloses a battery temperature adjusting device, a battery system and a temperature adjusting device, and generally relates to the technical field of batteries. The battery temperature adjusting device comprises at least one first heat exchange branch and at least one second heat exchange branch, the first heat exchange branch and the second heat exchange branch are connected in parallel, and each first heat exchange branch and each second heat exchange branch are suitable for being arranged corresponding to a battery area; the first heat exchange branch comprises an adjusting valve and at least one first heat exchanger which are connected in series, the second heat exchange branch comprises at least one second heat exchanger, and the first heat exchanger and the second heat exchanger are suitable for containing temperature control liquid and exchanging heat with the corresponding battery areas through the temperature control liquid.

Description

Technical Field

[0001] The present disclosure generally relates to the field of battery technology, and more particularly to a battery temperature regulating device, a battery system and a temperature regulating device. Background Art

[0002] With the continuous development of the automobile industry, the energy types of automobiles are gradually enriched, and new energy vehicles are a new type of automobile.

[0003] When new energy vehicles use electricity as energy, the battery generally has certain requirements for the operating temperature. Therefore, in related technologies, a battery system heat exchanger is provided to control the battery temperature.

[0004] However, in order to ensure the vehicle's endurance and starting capabilities, the battery area is generally large, and the battery of a new energy vehicle is composed of multiple groups of batteries. The existing battery heat exchange system cannot flexibly and accurately control the battery temperature. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the relevant technology, it is desired to provide a battery temperature control device, a battery system and a temperature control device, which can solve the problem that the existing battery heat exchange system cannot flexibly and accurately control the battery temperature, and greatly improve the heat exchange efficiency and temperature control accuracy of the battery.

[0006] In a first aspect, a battery temperature regulating device is provided, the device comprising:

[0007] The device comprises: at least one first heat exchange branch and at least one second heat exchange branch, the first heat exchange branch and the second heat exchange branch are connected in parallel, and each of the first heat exchange branch and each of the second heat exchange branch are suitable for being arranged corresponding to a battery area;

[0008] The first heat exchange branch includes a regulating valve and at least one first heat exchanger connected in series, and the second heat exchange branch includes at least one second heat exchanger, wherein the first heat exchanger and the second heat exchanger are suitable for containing a temperature control liquid and exchanging heat with the corresponding battery area through the temperature control liquid.

[0009] In the present application, the battery temperature regulating device includes at least one first heat exchange branch and at least one second heat exchange branch (the first heat exchange branch and the second heat exchange branch are connected in parallel and each first heat exchange branch and each second heat exchange branch are suitable for being set corresponding to a battery area). Among them, the first heat exchange branch includes a regulating valve and at least one heat exchanger arranged in series, and the second heat exchange branch includes at least one second heat exchanger. The first heat exchanger and the second heat exchanger are suitable for accommodating a temperature control liquid and exchanging heat with the corresponding battery area through the temperature control liquid. In this way, by only setting a regulating valve on the first heat exchange branch, different battery areas can control the flow of the temperature control liquid in the heat exchanger on different branches only through the regulating valve, thereby ensuring that the temperature can be effectively regulated by the temperature control liquid, reducing the number and cost of regulating valves, reducing the difficulty of operating the overall control loop and improving the efficiency of regulating temperature. Therefore, when the temperature of different battery areas of the battery is different, the temperature of different battery areas can be regulated, so that the temperature difference of different battery areas is greatly reduced, and the uniformity of battery temperature is ensured.

[0010] In a second aspect, a battery system is provided, the battery system comprising the battery temperature regulating device according to the first aspect, and the battery system further comprising:

[0011] The battery system includes a first battery area and a second battery area, the first battery area is arranged corresponding to the first heat exchange branch, and the second battery area is arranged corresponding to the second heat exchange branch.

[0012] In a third aspect, a temperature control device is provided, wherein the battery system includes the battery temperature control device described in the first aspect, and the temperature control device also includes: the battery temperature control device also includes an external heat exchange circuit, the external heat exchange circuit includes an air-conditioning system heat exchanger, the air-conditioning system heat exchanger is suitable for being set corresponding to the cockpit area, and is set in series with the third heat exchanger.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0015] Figure 1 It is a structural schematic diagram of a battery heat exchange system in the related art;

[0016] Figure 2 One of the battery temperature regulating devices provided in the embodiments of the present application;

[0017] Figure 3 The second battery temperature regulating device provided in the embodiment of the present application;

[0018] Figure 4 The third battery temperature regulating device provided in the embodiment of the present application

[0019] Figure 5 This is the fourth battery temperature regulating device provided in the embodiment of the present application.

[0020] Reference numerals: compressor 21, electromagnetic four-way reversing valve 22, passenger compartment air conditioning system heat exchanger 23, plate heat exchanger 24, electronic expansion valve 1 (25), electronic expansion valve 2 (26), expansion valve 27, environmental heat exchanger 28, pump body 29, first heat exchanger / heat exchanger 1 (30), second heat exchanger / heat exchanger 2 (31), regulating valve (32), heater (40), heater 1 (41), heater 2 (42), temperature sensor (33), three-way valve (50), three-way valve 1 (51), three-way valve 2 (52) DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The application scenarios of the present application will be described in detail below with reference to the accompanying drawings.

[0023] With the continuous development of the automobile industry, the way of using energy for automobiles is also changing. New energy vehicles are a type of vehicle that is increasing in proportion in the automobile industry. Among them, new energy vehicles can be electric vehicles. Compared with traditional vehicles that use oil as energy, electric new energy vehicles have greatly reduced carbon emissions and their energy costs are also greatly reduced compared to oil.

[0024] Since cars are usually large in size and require more power, larger batteries are needed as energy support hardware to enable new energy vehicles to achieve the same various usage modes as traditional energy vehicles (such as oil), and further expand the use modes of cars that use electricity as energy compared to traditional energy vehicles. Therefore, in order to ensure the service life and usage experience of new energy vehicles, it is very important to ensure the temperature of the batteries in new energy vehicles.

[0025] In the related art, in order to control the temperature of the battery in new energy vehicles, the following methods can be used: Figure 1The battery liquid-cooling and liquid-heating thermal management system shown cools the battery of a new energy vehicle. Specifically, it is composed of a compressor (1), an electromagnetic four-way reversing valve (2), a passenger compartment air conditioning system heat exchanger (3), a plate heat exchanger (4), an electronic expansion valve 1 (5), an electronic expansion valve 2 (6), an expansion valve (7), an environmental heat exchanger (8), a water pump (9), a battery system heat exchanger (10), a heater (11) and a three-way valve (12).

[0026] In the cooling state, the system can adjust the automobile air conditioning system to the cooling mode by changing the electromagnetic four-way reversing valve (2), that is, both the electronic expansion valve 1 and the electronic expansion valve 2 are opened, and the electromagnetic four-way reversing valve (2) is changed to switch the system to a liquid cooling type thermal management system. The refrigerant cycle is as follows: the gaseous low-pressure refrigerant is converted into a gaseous high-pressure refrigerant through the compressor (1), and then releases heat and is converted into a liquid high-pressure refrigerant through the ambient heat exchanger (8). The liquid high-pressure refrigerant is converted into a liquid low-pressure refrigerant through the expansion valve (7) and is divided into two paths, passing through the passenger compartment air conditioning system heat exchanger (3) and the plate heat exchanger (4) respectively to absorb heat and be converted into a gaseous low-pressure refrigerant. The gaseous low-pressure refrigerant returns to the compressor (1) through the electromagnetic four-way reversing valve (2). The coolant cycle is as follows: the coolant circulates in the cooling circuit composed of the water pump (9), the plate heat exchanger (4) and the battery system heat exchanger (10) under the driving action of the water pump (9). The coolant passes through the plate heat exchanger (4) to release heat until it reaches a certain temperature, and then passes through the battery system heat exchanger (10) to absorb heat to complete the cooling of the battery system.

[0027] In the heating state, the system switches to a liquid thermal management system, the electronic expansion valve (2) is closed, and the air conditioning system and the liquid thermal system do not interfere with each other. The coolant circulates as follows: the coolant circulates in a heating circuit composed of a water pump (9), a heater (11) and a battery system heat exchanger (10) under the driving action of the water pump (9). The coolant absorbs heat through the heater (11) to reach a certain temperature, and then releases heat through the battery system heat exchanger (10) to complete the heating of the battery system.

[0028] However, since the batteries of new energy vehicles are often large in size and the temperatures in different areas of the battery are not the same under different environments and operating conditions.

[0029] The above-mentioned traditional battery liquid-cooled and liquid-heated thermal management system: (1) cannot flexibly adjust the local heat exchange capacity of the heat exchanger (coolant temperature, flow rate and other parameters), and it is difficult to match the heat exchange capacity required by the different local cold / heat loads of the battery; (2) The cooling hydraulic pressure difference between the inlet and outlet of the battery system heat exchanger and the coolant temperature at the outlet of the battery system heat exchanger of the traditional thermal management system are affected by the structure of the heat exchanger (flow path length), and have large pressure difference and temperature changes, which is not conducive to maintaining the temperature uniformity of the battery.

[0030] Therefore, the above temperature control system cannot keep the temperature of each part of the battery uniform and consistent, that is, it cannot ensure that the temperature difference between different areas of the battery is small enough, which can easily lead to a shorter battery life.

[0031] Based on this, the present application proposes a battery temperature regulation device, which can solve the problem that the temperature control system cannot maintain a uniform and consistent temperature in various parts of the battery, that is, it cannot ensure that the temperature difference between different areas of the battery is small enough, which can easily lead to a shorter battery life, and greatly improve the heat exchange efficiency and temperature control accuracy of the battery.

[0032] Figure 2 This is a structural schematic diagram of a battery temperature regulation device according to an embodiment of the present application, wherein the device comprises: at least one first heat exchange branch and at least one second heat exchange branch, the first heat exchange branch and the second heat exchange branch are connected in parallel, and each of the first heat exchange branch and each of the second heat exchange branch are suitable for being set corresponding to a battery area.

[0033] In an embodiment of the present application, the first heat exchange branch includes a regulating valve and at least one first heat exchanger arranged in series, and the second heat exchange branch includes at least one second heat exchanger, wherein the first heat exchanger and the second heat exchanger are suitable for accommodating a temperature-control liquid and exchanging heat with the corresponding battery area through the temperature-control liquid.

[0034] Exemplarily, the first heat exchange branch of the first heat exchanger is a temperature control liquid regulating circuit, and correspondingly, the second heat exchange branch of the second heat exchanger is also a temperature control liquid regulating circuit. It is understandable that the temperature control liquid regulating circuit may have a temperature control liquid flowing, and the temperature control liquid is used to exchange heat with the battery area corresponding to the heat exchange branch where it is located, so that the battery area is cooled or heated.

[0035] Exemplarily, the regulating valve is used to regulate the flow rate of the temperature-control liquid in the heat exchange branch where at least one of the at least one first heat exchanger and the at least one second heat exchanger is located.

[0036] In an embodiment of the present application, when the above-mentioned regulating valve adjusts the temperature control liquid flow of the heat exchange branch where the above-mentioned at least one heat exchanger is located, the temperature control liquid flow of other heat exchangers changes, and the temperature control liquid flow of the heat exchange branch where the above-mentioned at least one heat exchanger is located is inversely proportional to the temperature control liquid flow of the above-mentioned other heat exchangers.

[0037] In the embodiment of the present application, the above-mentioned battery area may be a partial area of ​​the battery, or may be a battery area in the battery.

[0038] It is understandable that in some scenarios, for example, for vehicles, the battery volume is often large, so the battery can be divided into several different areas and the temperature of different battery areas can be cooled.

[0039] Furthermore, for larger batteries, different areas in the battery may be used to manage different power supplies. For example, for a vehicle battery, some areas of the battery are used to power the vehicle's power system, some areas are used to power the vehicle's ambient temperature system, and some areas are used to power the vehicle's passenger compartment air conditioning system.

[0040] In an embodiment of the present application, the heat exchangers of the above-mentioned first heat exchange branch may include two, three, four or even more; correspondingly, the heat exchangers of the second heat exchange branch may include two, three, four or even more, and the embodiment of the present application does not limit this.

[0041] It can be understood that the number of the heat exchangers in the first heat exchange branch and the number of the heat exchangers in the first heat exchange branch can be related to the volume of the battery area and can also be related to the function of the battery.

[0042] Furthermore, for new energy terminals, especially large terminals such as cars, the battery volume is relatively large, and different battery areas or different battery areas have different functions. For example, the battery area or battery pack that controls the air conditioner is different from the battery area or battery pack that controls the vehicle power. Therefore, the battery area or battery pack that needs to be started during the use of the new energy terminal is also different, and the battery temperature change is uneven. Based on this, the heat exchanger can be arranged according to the area and different functions of the battery of the new energy terminal, so that the heat exchanger can work when needed and appropriate.

[0043] In this way, by providing multiple heat exchangers for the first heat exchange branch and / or the second heat exchange branch, the flow distance of the temperature control liquid on the heat exchange branch can be greatly reduced, so that the temperature attenuation change of the temperature control liquid is reduced in the process of controlling the temperature of the battery through multiple heat exchangers, thereby improving the temperature control efficiency and better saving the energy of adjusting the temperature of the temperature control liquid. In addition, the battery temperature adjustment device disclosed in the present application only provides a regulating valve on the first heat exchange branch, so that different battery areas can control the flow of the temperature control liquid in the heat exchanger on different branches only through the regulating valve, thereby ensuring that the temperature can be effectively adjusted by using the temperature control liquid, reducing the number and cost of regulating valves, reducing the difficulty of operating the overall control loop and improving the efficiency of adjusting the temperature.

[0044] In the embodiment of the present application, the regulating valve may be an electric regulating valve.

[0045] In the embodiment of the present application, the above-mentioned regulating valve can close the flow rate of the temperature-control liquid in the heat exchange branch where it is located, and can also increase the flow rate of the temperature-control liquid in the heat exchange branch where it is located.

[0046] Optionally, in an embodiment of the present application, the above-mentioned device also includes: a temperature-controlled liquid flow controller.

[0047] Exemplarily, the temperature-control liquid flow controller is used to control the opening and closing state of the regulating valve and control the temperature-control liquid flow corresponding to the first heat exchanger.

[0048] Exemplarily, the temperature-controlled liquid flow controller may be used to control the opening and closing state of the regulating valve 32 .

[0049] It can be understood that when the temperature of part or all of the battery areas of the battery changes, the battery areas whose temperatures need to be controlled can be opened and closed by a temperature-controlled liquid flow controller, and then the heat exchanger is controlled by a regulating valve, so that the heat exchanger can finally adjust the temperature of part or all of the battery areas through the temperature-controlled liquid.

[0050] In the embodiment of the present application, the temperature control liquid may be water, or other liquids or media having heat conduction or heat exchange functions, which is not limited in the embodiment of the present application.

[0051] In the embodiment of the present application, the above-mentioned temperature-control liquid flow rate refers to: the flow rate of the temperature-control liquid per unit time, that is, the flow rate of the temperature-control liquid.

[0052] It is understandable that the greater the flow rate of the temperature control liquid, the stronger the heat exchange function of the heat exchanger, and the smaller the flow rate of the temperature control liquid, the weaker the heat exchange function of the heat exchanger. Based on this, the flow rate of the temperature control liquid can be adjusted by the regulating valve, thereby controlling the heat exchange capacity of the heat exchanger.

[0053] It can be understood that other branches other than the heat exchange branch where the regulating valve is located may be branches corresponding to battery areas that require continuous heat exchange.

[0054] Optionally, in an embodiment of the present application, a temperature variation amplitude of a battery region corresponding to the first heat exchanger is smaller than a temperature variation amplitude of a battery region corresponding to the second heat exchanger.

[0055] It can be understood from the foregoing that there may be battery areas in the above-mentioned battery that need to continue working after the battery starts working, for example, the battery area that provides power for the terminal, and there may also be battery areas that do not need to work continuously, for example, the battery area that provides power for multimedia functions.

[0056] Furthermore, for the battery area that requires continuous heat exchange, that is, the battery area corresponding to the second heat exchanger, the heat exchanger corresponding to this part of the battery area may not need a regulating valve. The reason is that this part of the battery area may continuously need a temperature-control liquid to control its temperature. Therefore, when there is no regulating valve around this part of the battery area, the area where this part of the battery area is located cannot be subjected to the second heat exchanger with a temperature-control liquid to exchange heat, that is, this part of the battery area can be in a continuous heat exchange state.

[0057] Based on this, the temperature variation range of the battery area corresponding to the first heat exchanger is smaller than the temperature variation range of the battery area corresponding to the second heat exchanger.

[0058] It can be understood that the above temperature variation range is used to characterize: the temperature variation range of the battery area within a unit time (for example, the temperature variation range of the battery area within a day).

[0059] Exemplarily, the above-mentioned temperature change amplitude includes: temperature change speed, duration that the temperature exceeds the standard operating temperature range of the battery area, etc.

[0060] In an embodiment of the present application, when the flow rate of the above-mentioned first heat exchanger is increased by adjusting the regulating valve (the temperature-controlled liquid flow controller controls the regulating valve), the flow rate of the second heat exchanger will decrease accordingly; conversely, when the flow rate of the above-mentioned first heat exchanger is reduced by adjusting the regulating valve, the flow rate of the second heat exchanger will increase accordingly.

[0061] In the embodiment of the present application, the temperature of the inlet or outlet temperature-control liquid of multiple heat exchangers can be monitored by a temperature sensor, and the power of the heater and / or the flow rate of the temperature-control liquid in the heat exchanger can be adjusted.

[0062] like Figure 2 As shown, Figure 2The battery temperature regulating device of an embodiment of the present application is shown. The battery temperature regulating device has two heat exchangers, namely, heat exchanger 1 (30) (i.e., the first heat exchanger 30) and heat exchanger 2 (31) (i.e., the second heat exchanger 31). Heat exchanger 1 (30) is arranged in series on the first heat exchange branch, and heat exchanger 2 (31) is arranged in series on the second heat exchange branch. The two heat exchangers correspond to battery area 1 and battery area 2 of the battery, respectively. In the heat exchange branch corresponding to the battery area 1, there is a heat exchanger 1 (30) having a regulating valve (i.e., the above-mentioned regulating valve). The temperature-controlling liquid in the heat exchanger 1 (30) can be controlled by a temperature-controlling liquid flow controller to control the opening or closing of the regulating valve to control the presence or absence of the temperature-controlling liquid in the heat exchanger 1 (30), and the large or small flow rate. The temperature-controlling liquid in the heat exchanger 2 (31) changes accordingly as the regulating valve (32) regulates the flow rate of the temperature-controlling liquid in the heat exchanger 1 (30). When the regulating valve is fully opened, the flow rate of the temperature-controlling liquid in the heat exchanger 1 (30) is the largest, and correspondingly, the flow rate of the temperature-controlling liquid in the heat exchanger 2 (31) is the smallest; when the regulating valve (32) is fully closed, the flow rate of the temperature-controlling liquid in the heat exchanger 1 (30) is zero, and correspondingly, the flow rate of the temperature-controlling liquid in the heat exchanger 2 (31) is the largest.

[0063] Furthermore, the temperature variation range of the area where the battery area 1 is located is smaller. Specifically, the temperature variation range of the battery area 1 is smaller than the temperature variation range of the battery area 2. Therefore, the temperature control liquid flow rate required for the temperature control process of the battery area 1 is smaller than the temperature control liquid flow rate required for the temperature control process of the battery area 2. That is, the regulating valve 32 on the heat exchange branch of the battery area 1 can be fully closed, and the temperature control liquid flow rate can be 0, while there is always a temperature control liquid flow rate in the heat exchange branch of the battery area 2.

[0064] Furthermore, in one embodiment, the battery temperature regulation device also has a heater, which can be connected in parallel in each heat exchange branch. When all or part of the battery area needs to be heated, the heater in the battery temperature regulation device is controlled to be in an open state, and the temperature-control liquid is heated. The heated temperature-control liquid is used in all or part of the heat exchangers so that the battery area that needs to be heated can be heated; correspondingly, when all or part of the battery area needs to be cooled, the battery temperature regulation device is controlled to cool the temperature-control liquid through the compressor and refrigerant of the air-conditioning system, and the battery area that needs to be cooled can be cooled after the heat exchanger uses the cooled temperature-control liquid (please refer to the subsequent description for details of this part, which will not be repeated here).

[0065] Optionally, in an embodiment of the present application, the temperature of the temperature-controlling liquid of each of the above-mentioned heat exchangers corresponds to the target temperature of the battery area corresponding to each of the above-mentioned heat exchangers.

[0066] It can be understood that the target temperature can be a single target temperature value, multiple target temperature values, or a temperature range.

[0067] Furthermore, for the battery, it needs to work at a suitable temperature so that it can work at the highest efficiency while ensuring safety. Based on this, the battery has a corresponding operating temperature range, or operating temperature value, and the most suitable operating temperature is the target temperature.

[0068] Furthermore, different battery areas may have the same target temperature or different target temperatures, which is not limited in the embodiments of the present application.

[0069] The battery temperature regulating device provided in the embodiment of the present application includes at least one first heat exchange branch and at least one second heat exchange branch (the above-mentioned first heat exchange branch and the second heat exchange branch are connected in parallel and each first heat exchange branch and each second heat exchange branch are suitable for being set corresponding to a battery area). Among them, the first heat exchange branch includes a regulating valve and at least one heat exchanger arranged in series, and the second heat exchange branch includes at least one second heat exchanger. The first heat exchanger and the second heat exchanger are suitable for accommodating a temperature control liquid and exchanging heat with the corresponding battery area through the temperature control liquid. In this way, by arranging multiple heat exchangers and regulating valves corresponding to one or more heat exchangers in the multiple heat exchangers on multiple heat exchange branches, different battery areas can be temperature-regulated by using temperature control liquids through different heat exchangers, thereby improving the efficiency of temperature regulation. Therefore, when the temperatures of different battery areas of the battery are different, different battery areas can be temperature-regulated, so that the temperature difference between different battery areas is greatly reduced, and the uniformity of battery temperature is ensured.

[0070] Optionally, in an embodiment of the present application, the battery temperature regulating device further includes a main heat exchange circuit, and the first heat exchange branch circuit and the second heat exchange branch circuit are connected in parallel to the main heat exchange circuit, wherein.

[0071] Exemplarily, the main heat exchange circuit is provided with a temperature-controlled liquid output device.

[0072] In one example, the temperature-controlled liquid output device may be an output pump body. For example, when the temperature-controlled liquid is water, the output pump body may be a water pump.

[0073] It can be understood that the temperature control liquid is a liquid with a certain heat exchange function. Its heat exchange principle is to use the temperature control liquid's heat absorption to remove the heat of its corresponding battery area and cool the battery area, or use the temperature control liquid's heat dissipation to provide heat for the battery area. The heat exchange process is very fast. Therefore, the temperature control liquid needs to flow quickly in the first heat exchange branch and the second heat exchange branch to ensure continuous heat exchange. Based on this, by setting a temperature control liquid output device, the device can make the liquid in the first heat exchange branch and the liquid in the second heat exchange branch flow continuously, thereby meeting the heat exchange requirements of each battery area.

[0074] Exemplarily, the main heat exchange path is a heat exchange path for providing temperature-controlled liquid to both the first heat exchange branch and the second heat exchange branch.

[0075] Optionally, in an embodiment of the present application, the above-mentioned main heat exchange circuit is further provided with a third heat exchanger, and the above-mentioned third heat exchanger is suitable for exchanging heat with an external heat exchange circuit to adjust the temperature control liquid in the above-mentioned main circuit.

[0076] In one example, the third heat exchanger may be a plate heat exchanger.

[0077] Exemplarily, the external heat exchange circuit is a heat exchange circuit outside the first heat exchange branch and the second heat exchange branch, and is used to adjust the temperature of the temperature-control liquid in the first heat exchange branch and / or the second heat exchange branch.

[0078] It can be understood that the first heat exchange branch and the second heat exchange branch are used to perform heat exchange and temperature rise for different battery areas. After the heat exchange is completed, the temperature-control liquid is output to the main heat exchange circuit. The main heat exchange circuit adjusts the temperature of the temperature-control liquid to a temperature that can exchange heat for the battery area through the third heat exchanger and inputs the temperature-control liquid to the first heat exchange branch and / or the second heat exchange branch. Only in this way can heat exchange and temperature rise be performed for different battery areas again.

[0079] Furthermore, the coolant in the battery temperature regulating device used to regulate the temperature of the temperature-controlling liquid can release heat to the refrigerant through the plate heat exchanger to maintain a certain required temperature of the temperature-controlling liquid.

[0080] like Figure 2 As shown, Figure 2The plate heat exchanger 24 and the pump body 29 (i.e., the temperature control liquid output device) are arranged in the main heat exchange path. The plate heat exchanger 24 is arranged in the main heat exchange path. The heat exchanger 1 (30) (the first heat exchanger 30) is connected in parallel with the plate heat exchanger 24. At the same time, the heat exchanger 2 (the second heat exchanger 31) is also connected in parallel with the plate heat exchanger 24. The plate heat exchanger 24 is used to exchange heat with the temperature control liquid output by the heat exchanger 1 (30) and the heat exchanger 2 (31) in the main heat exchange path. The pump body 29 is used to increase the power of the temperature control liquid and continuously input the temperature control liquid into the heat exchanger 1 (30) (the first heat exchanger 30) and / or the heat exchanger 2 (31) (the second heat exchanger 31).

[0081] In another embodiment of the present application, a battery temperature regulating device is provided in which each first heat exchanger and each second heat exchanger includes a regulating valve.

[0082] Optionally, the device further comprises: a plurality of regulating valves, and the number of the regulating valves is consistent with the number of the heat exchangers.

[0083] Exemplarily, the regulating valve is disposed in a heat exchange branch of each heat exchanger of the plurality of heat exchangers.

[0084] Exemplarily, the regulating valve is used to adjust the flow rate of the temperature-control liquid of each heat exchanger, and the flow rate of the temperature-control liquid of each heat exchanger is related to the battery temperature of the battery area corresponding to each heat exchanger.

[0085] It is understandable that in order to make the heat exchange function of the heat exchanger more comprehensive and flexible, that is, to be able to control the temperature of different battery areas with the most appropriate temperature control liquid flow at any time, each heat exchanger can be equipped with a corresponding regulating valve, and the regulating valve is used to adjust the temperature control liquid flow in the heat exchanger, thereby equipping battery areas with different temperatures with temperature control liquid flows corresponding to their temperatures.

[0086] Furthermore, the opening and closing states of the above-mentioned multiple regulating valves can be controlled by a temperature-controlled liquid flow controller, and the temperature-controlled liquid flow corresponding to the first heat exchanger and / or the temperature-controlled liquid flow corresponding to the second heat exchanger corresponding to each regulating valve can be controlled.

[0087] like Figure 3 As shown, Figure 3The battery temperature regulating device of an embodiment of the present application is shown. There are two heat exchangers in the battery temperature regulating device, namely heat exchanger 1 (30) and heat exchanger 2 (31), and the two heat exchangers correspond to the battery area 1 of the battery and the battery area 2 of the battery, respectively. Among them, the battery area 1 corresponds to the heat exchanger 1 (30) with a regulating valve 32 (that is, the above-mentioned regulating valve) on the heat exchange branch, and the temperature control liquid in the heat exchanger 1 can be controlled by the opening or closing of the regulating valve 32 to control the presence or absence of the temperature control liquid in the heat exchanger 1 (30), and the flow rate is large or small. The battery area 2 corresponds to the heat exchanger 2 (31) with a regulating valve 32 on the heat exchange branch, and the temperature control liquid in the heat exchanger 2 (31) can be controlled by the opening or closing of the regulating valve 32 to control the presence or absence of the temperature control liquid in the heat exchanger 2 (31).

[0088] The regulating valve 32 is arranged at the intersection of the heat exchanger 1 (30) and the battery system heat exchanger 2 (31). The regulating valve 32 is controlled by a temperature-controlled liquid flow controller so that the regulating valve 32 can simultaneously control the flow opening of the heat exchange branches where the heat exchanger 1 (30) and the heat exchanger 2 (31) are located.

[0089] In this way, by setting up multiple regulating valves 32, the flow rate of the temperature-control liquid in each first heat exchanger and each second heat exchanger can be accurately controlled. Therefore, for a battery area that does not require temperature control, there is no need to open the heat exchanger of the battery area. For a battery area that requires temperature control, the flow rate of the temperature-control liquid in the heat exchanger can be controlled at the temperature required by the battery area. This can save temperature control energy and accurately control the battery temperature, thereby minimizing the temperature difference between different battery areas in the battery.

[0090] In the embodiments of the present application, the structures of different battery temperature regulating devices make the following description on the temperature regulating process of the battery temperature regulating device in the present application.

[0091] Optionally, in an embodiment of the present application, after obtaining the temperature of the target battery area, and when the temperature of the target battery area is higher than a first preset temperature, the opening of the regulating valve is controlled to a first target opening so that the temperature of the target battery area switches to the target temperature within a predetermined time.

[0092] Exemplarily, the target temperature is higher than the second preset temperature and lower than the first preset temperature, the first preset temperature is greater than the second preset temperature, and the target battery area is any battery area among the multiple battery areas.

[0093] It can be understood that the above-mentioned regulating valve controls the opening of the above-mentioned regulating valve to the first target opening so that the temperature-control liquid flow of the heat exchange branch of the target heat exchanger corresponding to the above-mentioned target battery area reaches the target temperature-control liquid flow, so that the temperature of the above-mentioned target battery area is adjusted to the target temperature within a predetermined time. The above-mentioned target temperature is higher than the second preset temperature and lower than the above-mentioned first preset temperature, and the temperature-control liquid in the above-mentioned target heat exchanger is a temperature-control liquid that has been cooled.

[0094] Illustratively, the target battery region may be one battery region in the batteries, or may be multiple battery regions, which is not limited in the embodiments of the present application.

[0095] For example, the predetermined time period may be preset or user-defined, which is not limited in the present application.

[0096] Exemplarily, the predetermined time period is related to the temperature control liquid flow rate of the heat exchange branch.

[0097] In one example, the shorter the predetermined time period is, the greater the flow rate of the temperature-control liquid in the heat exchange branch is.

[0098] Exemplarily, when the temperature of the target battery area is higher than the first preset temperature, it is necessary to cool the temperature of the target battery area to below the first preset temperature and above the second preset temperature, so that the temperature of the target battery area reaches the target temperature.

[0099] It is understandable that if Figure 2 As shown, in Figure 2 When the battery temperature regulating device in the battery temperature regulating device needs to cool down, it needs to use the cooling mode of the air conditioning system, that is, to cool down the temperature-control liquid through the refrigerant of the air conditioning system. Figure 2 In the process, the gaseous low-pressure refrigerant is converted into a gaseous high-pressure refrigerant through the compressor 21, and then releases heat through the environmental heat exchanger 28 and is converted into a liquid high-pressure refrigerant. The liquid high-pressure refrigerant is converted into a liquid low-pressure refrigerant through the expansion valve 27 and is divided into two paths, which absorb heat and are converted into a gaseous low-pressure refrigerant through the passenger compartment air conditioning system heat exchanger 23 and the plate heat exchanger 24 respectively. The gaseous low-pressure refrigerant returns to the compressor 21 through the electromagnetic four-way reversing valve 22.

[0100] Below for Figure 2 The different situations of the cooling process are described as follows:

[0101] 1) When the target battery area is battery area 2, and the temperature of battery area 2 is greater than or equal to the first preset temperature , the temperature of battery area 1 is less than or equal to the second preset temperature In the case of Figure 2The regulating valve in the heat exchanger closes the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1. As can be seen from the above content, in this case, the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 will no longer have temperature control liquid flowing, and at the same time, the cooled temperature control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will flow at the maximum flow rate. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and the heat exchanger 2 (31).

[0102] 2) When the target battery area is battery area 2, and the temperature of battery area 2 is greater than or equal to the first preset temperature , the temperature of battery area 1 is also greater than or equal to the first preset temperature In the case of Figure 2 The regulating valve in opens the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1. As can be seen from the above content, in this case, the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1 will have cooled temperature-control liquid flowing, and the temperature-control liquid in heat exchanger 2 (31) corresponding to battery area 2 will also have cooled temperature-control liquid flowing. Battery area 1 corresponding to heat exchanger 1 (30) and battery area 2 corresponding to heat exchanger 2 (31) are cooled at the same time. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and then is divided into two paths, flowing through heat exchanger 1 (30) and heat exchanger 2 (31) respectively.

[0103] Optionally, in an embodiment of the present application, the area where the target battery area in the above-mentioned battery is located corresponds to the area where the above-mentioned first heat exchanger is located. When the temperature of the above-mentioned target battery area is higher than the first preset temperature and the battery area outside the above-mentioned target battery area is at the target temperature, the regulating valve of the above-mentioned first heat exchanger adjusts the temperature control liquid flow of the heat exchange branch of the above-mentioned first heat exchanger to the first temperature control liquid flow and keeps the regulating valve of the above-mentioned first heat exchanger closed, so that the temperature of the above-mentioned target battery area is adjusted to the target temperature within a predetermined time, and the above-mentioned target temperature is higher than the above-mentioned second preset temperature and lower than the above-mentioned first preset temperature.

[0104] Exemplarily, the description of the above target temperature and target battery area can refer to the above description, which will not be repeated here.

[0105] It is understandable that if Figure 3 As shown, in Figure 3 When the battery temperature regulating device in the battery temperature regulating device needs to cool down, it needs to use the cooling mode of the air conditioning system, that is, to cool down the temperature-control liquid through the refrigerant of the air conditioning system. Figure 2 and Figure 3In the process, the gaseous low-pressure refrigerant is converted into a gaseous high-pressure refrigerant through the compressor 21, and then passes through the environmental heat exchanger 28 to release heat and convert into a liquid high-pressure refrigerant. The liquid high-pressure refrigerant is converted into a liquid low-pressure refrigerant through the expansion valve (7), and then is divided into two paths, passing through the passenger compartment air conditioning system heat exchanger 23 and the plate heat exchanger 24 to absorb heat and convert into a gaseous low-pressure refrigerant. The gaseous low-pressure refrigerant returns to the compressor 21 through the electromagnetic four-way reversing valve 22.

[0106] Below for Figure 3 The different situations are described as follows:

[0107] 1) When the target battery area is battery area 2, and the temperature of battery area 2 is greater than or equal to the first preset temperature , the temperature of battery area 1 is less than or equal to the second preset temperature In the case of Figure 3 The regulating valve in the heat exchanger 1 (30) corresponding to the battery area 1 closes the heat exchange branch. As can be seen from the above content, in this case, the warm liquid regulating circuit of the heat exchanger 1 (30) corresponding to the battery area 1 will no longer have temperature control liquid flowing, and at the same time, the cooled temperature control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will flow at the maximum flow rate. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and the heat exchanger 2 (31).

[0108] 2) When the target battery area is battery area 1 and battery area 2, the temperature of battery area 2 is greater than or equal to the first preset temperature , the temperature of battery area 1 is also greater than or equal to the first preset temperature In the case of Figure 3 The regulating valve in opens the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1. As can be seen from the above content, in this case, the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1 will have cooled temperature-control liquid flowing, and the temperature-control liquid in heat exchanger 2 (31) corresponding to battery area 2 will also have cooled temperature-control liquid flowing. Battery area 1 corresponding to heat exchanger 1 (30) and battery area 2 corresponding to heat exchanger 2 (31) are cooled at the same time. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and then is divided into two paths, flowing through heat exchanger 1 (30) and heat exchanger 2 (31) respectively.

[0109] 3) When the target battery area is battery area 1 and the temperature of battery area 1 is less than , the temperature of battery area 2 is greater than or equal to the first preset temperature In the case of Figure 3The regulating valve in opens the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1, and at the same time, the regulating valve (32) is used to close the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 2. It can be seen from the above content that in this case, the warm liquid regulating circuit of heat exchanger 1 (30) corresponding to battery area 1 will have the flow of cooled temperature-controlled liquid, and at the same time, the temperature-controlled liquid in heat exchanger 2 (31) corresponding to battery area 2 will no longer flow after cooling. The battery area 1 corresponding to heat exchanger 1 (30) is heated up, and the battery area 2 corresponding to heat exchanger 2 is cooled down. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and the heat exchanger 1 (30).

[0110] Optionally, in an embodiment of the present application, the apparatus further comprises a first heater, and the temperature-controlled liquid output device is arranged in series with the first heater.

[0111] Optionally, in the battery temperature regulating device, the battery temperature regulating device can not only cool down the battery, but also heat up the battery. Exemplarily, after obtaining the temperature of the target battery area, if the temperature of the target battery area is lower than the second preset temperature, the opening of the regulating valve is controlled to the second target opening so that the temperature of the target battery area is adjusted to the target temperature within a predetermined time.

[0112] Exemplarily, the target temperature is higher than the second preset temperature and lower than the first preset temperature, the first preset temperature is greater than the second preset temperature, and the target battery area is any battery area among the multiple battery areas.

[0113] Exemplarily, the opening and closing state of the above-mentioned regulating valve is controlled to be a second target opening by a temperature-controlled liquid flow controller, so that the regulating valve adjusts the temperature-controlled liquid flow of the heat exchange branch of the target heat exchanger corresponding to the target battery area to the target temperature-controlled liquid flow, so that the temperature of the target battery area is adjusted to the target temperature within a predetermined time, and the temperature-controlled liquid in the target heat exchanger is a temperature-controlled liquid heated by a heater.

[0114] Illustratively, the above-mentioned target temperature and target battery area can refer to the above description and will not be repeated here.

[0115] It can be understood that the above-mentioned heater is a heater commonly used by the above-mentioned multiple heat exchangers.

[0116] That is, after the heater is turned on, the temperature of the temperature-control liquid flowing through each heat exchanger is the same.

[0117] Furthermore, in the embodiment of the present application, when the heater is turned on and the battery heating process needs to be started, the air conditioning system should be turned off. Figure 2 and Figure 3As shown, in Figure 2 and Figure 3 When the battery temperature regulating device is in the heating mode, the electronic expansion valve 2 is closed, so that there is no heat exchange between the refrigerant and the coolant, so that the temperature control liquid no longer passes through the heat exchanger of the passenger compartment air conditioning system, and only flows through the heat exchanger 1 (30) and / or the heat exchanger 2 (31) in the battery area. That is, the battery temperature regulating device in the heating mode does not interfere with the heating / cooling mode of the air conditioner.

[0118] It is understandable that when the number of regulating valves 32 is less than the number of heat exchangers and when the number of regulating valves 32 is equal to the number of heat exchangers, there are certain differences in the way in which the heat exchangers exchange heat for the batteries. These two situations are described below respectively.

[0119] 1. When the number of regulating valves 32 is different from the number of heat exchangers

[0120] 1) If Figure 2 As shown, when the target battery area is battery area 2, and the temperature of battery area 2 is lower than the second preset temperature , the temperature of battery area 1 is greater than or equal to the second preset temperature In the case of Figure 2 The opening and closing state of the regulating valve (32) in the battery area 1 is the second target opening, that is, the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 is closed. In this case, the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 will no longer have the temperature control liquid flowing, the heater (40) of the battery area 2 heats the temperature control liquid, and the heated temperature control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will flow at the maximum flow rate, that is, only the battery area 2 is heated. Specifically, the pump body 29 drives the temperature control liquid to flow through the heater (40) and the heat exchanger 2 (31).

[0121] 2) If Figure 2 As shown, when the target battery areas are battery area 1 and battery area 2, the temperature of battery area 2 is lower than the second preset temperature , the temperature of battery area 1 is also lower than the second preset temperature In the case of Figure 2The regulating valve in opens the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1. In this case, the heater (40) heats the temperature control liquid, and the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1 will have heated temperature control liquid flowing, and at the same time, the heat exchanger 2 corresponding to battery area 2 will also have heated temperature control liquid flowing. The battery area 1 corresponding to heat exchanger 1 (30) and the battery area 2 corresponding to heat exchanger 2 (31) are heated at the same time, and the flowing temperature control liquid has the same temperature. Specifically, the regulating valve (32) is opened, at this time, heat exchanger 1 (30) is opened, heat exchanger 2 (31) is opened, and the pump body 29 drives the temperature control liquid to be divided into two paths, heat exchanger 1 (30) and heat exchanger 2 (31).

[0122] 2. When the number of regulating valves 32 is the same as the number of heat exchangers

[0123] 1) If Figure 3 As shown, when the target battery area is battery area 2, and the temperature of battery area 2 is lower than the second preset temperature , the temperature of battery area 1 is greater than or equal to the second preset temperature In the case of Figure 3 The opening and closing state of the regulating valve (32) in the battery area 1 is the second target opening, that is, the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 is closed. In this case, the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 will no longer have the temperature control liquid flowing, the heater 2 (13) of the battery area 2 heats the temperature control liquid, and the heated temperature control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will flow at the maximum flow rate, that is, only the battery area 2 is heated. Specifically, the pump body 29 drives the temperature control liquid to flow through the heater (40) and the heat exchanger 2 (31).

[0124] 2) If Figure 3 As shown, when the target battery areas are battery area 1 and battery area 2, the temperature of battery area 2 is lower than the second preset temperature , the temperature of battery area 1 is also lower than the second preset temperature In the case of Figure 3The regulating valve (32) in opens the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1. In this case, the heater (40) heats the temperature control liquid, and the heat exchange branch of heat exchanger 1 corresponding to battery area 1 will have heated temperature control liquid flowing, and at the same time, heat exchanger 2 (31) corresponding to battery area 2 will also have heated temperature control liquid flowing. Battery area 1 corresponding to heat exchanger 1 (30) and battery area 2 corresponding to heat exchanger 2 (31) are heated at the same time, and the flowing temperature control liquid has the same temperature. Specifically, the regulating valve (32) is opened, and at this time, heat exchanger 1 (30) is opened, and heat exchanger 2 (31) is opened, and the pump body 29 drives the temperature control liquid to be divided into two paths, which flow through heat exchanger 1 (30) and heat exchanger 2 (31) at the same time.

[0125] 3) When the target battery area is battery area 1, the temperature of battery area 1 is lower than the second preset temperature , the temperature of battery area 2 is greater than the second preset temperature In the case of Figure 3 The regulating valve (32) in the heat exchanger opens the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1, and at the same time closes the heat exchange branch of the heat exchanger 2 (31) corresponding to the battery area 2 through the regulating valve (32). In this case, the heater (40) heats the temperature-control liquid. Then the warm liquid regulating circuit of the heat exchanger 1 (30) corresponding to the battery area 1 will flow the heated temperature-control liquid, and at the same time, the temperature-control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will not flow the heated temperature-control liquid, and the battery area 1 corresponding to the heat exchanger 1 (30) will be heated separately. Specifically, at this time, the heat exchanger 1 (30) is turned on, the heat exchanger 2 (31) is turned off, and after the pump body 29 drives the temperature-control liquid to flow through the heater (40), the heat exchanger 1 (30).

[0126] Optionally, in an embodiment of the present application, the above-mentioned device also includes: a second heater and a third heat exchanger.

[0127] The second heater is arranged in the first heat exchange branch to adjust the temperature of the temperature-control liquid in the first heat exchange branch.

[0128] The third heater is arranged in the first heat exchange branch to adjust the temperature of the temperature-control liquid in the second heat exchange branch.

[0129] It can be understood that the number of the above-mentioned heaters can be consistent with the number of the above-mentioned heat exchangers.

[0130] Exemplarily, the second heater is disposed in the first heat exchange branch of the first heat exchanger, and the third heater is disposed in the first heat exchange branch of the second heat exchanger.

[0131] Furthermore, the second heater is used to adjust the temperature of the temperature-control liquid in the first heat exchange branch corresponding to the first heat exchanger; the third heater is used to adjust the temperature of the temperature-control liquid in the second heat exchange branch corresponding to the second heat exchanger.

[0132] It is understandable that for the battery areas that need to be heated, different battery areas require heating at different temperatures. Therefore, corresponding heaters can be set in the heat exchange branches corresponding to different heat exchangers. According to the actual temperatures of the battery areas corresponding to different heat exchangers, the degree of heating required by the heater corresponding to the heat exchanger is determined, that is, the heating temperature required by the heater is determined, so that different battery areas can be heated at different temperatures.

[0133] Exemplarily, the second heater and the third heater may be disposed in the heat exchange branches of the corresponding heat exchangers via three-way valves.

[0134] like Figure 4 and Figure 5 As shown, heater 1 (41) is arranged in parallel in the heat exchange branch of heat exchanger 1 (30) through three-way valve 1 (51); heater 2 (42) is arranged in parallel in the heat exchange branch of heat exchanger 2 (31) through three-way valve 2 (52).

[0135] Exemplarily, the heating powers of the above-mentioned different heaters can be adjusted autonomously, that is, the powers of different heaters can be the same or different.

[0136] Furthermore, the power of the heater is related to the temperature of the battery area controlled by the heat exchanger corresponding to the heater.

[0137] In one example, when the power of the heater and the temperature of the battery area controlled by the heat exchanger corresponding to the heater are slightly lower than the target temperature, the power of the heater can be smaller; when the power of the heater and the temperature of the battery area controlled by the heat exchanger corresponding to the heater are much lower than the target temperature, the power of the heater can be larger.

[0138] Exemplarily, for a battery temperature control device in which each heat exchanger is equipped with a corresponding heater, that is, the number of heaters is the same as the number of heat exchangers, the battery temperature control device may have the same number of regulating valves as the number of heat exchangers, or may have a number of regulating valves less than the number of heat exchangers.

[0139] The adjustment process for these two situations is briefly described below.

[0140] like Figure 4 As shown, Figure 4In the battery temperature regulating device, the number of regulating valves is less than the number of heat exchangers, and the number of heaters is the same as the number of heat exchangers. The regulating valve (32) is connected in series with the heat exchanger 1 (30) and is arranged on the heat exchange branch corresponding to the heat exchanger 1 (30). When the regulating valve 1 (32) is opened, the heat exchanger 1 (30) is opened, and the heat exchanger 2 (31) is always opened. The three-way valve (50) points to the plate heat exchanger 24, the three-way valve 1 (51) points to the heat exchanger 1 (30), and the three-way valve 2 (52) points to the heat exchanger 2 (31) as a cooling circuit. The three-way valve (50) points to the diversion inlet of the dual heater, the three-way valve 1 (51) points to the heater 1 (41) (that is, the second heater) of the heat exchanger 1, and the three-way valve 2 (52) points to the heater 2 (42) (that is, the third heater) of the heat exchanger 2 (31) as a heating circuit.

[0141] like Figure 5 As shown, Figure 5 In the battery temperature regulating device, the number of regulating valves is equal to the number of heat exchangers, and the number of heaters is the same as the number of heat exchangers. As described above, the regulating valve (32) is arranged at the intersection of the heat exchanger 1 (30) and the heat exchanger 2 (31), and the regulating valve (32) can simultaneously control the flow opening of the heat exchange branch where the heat exchanger 1 (30) and the heat exchanger 2 (31) are located. When the flow opening of the heat exchange branch of the heat exchanger 1 (30) increases, the flow opening of the heat exchange branch of the heat exchanger 2 (11) decreases, and when the flow opening of the heat exchange branch of the heat exchanger 1 (30) decreases, the flow opening of the heat exchange branch of the heat exchanger 2 (31) increases, so that the heat exchange branch of the heat exchanger 1 (30) or the heat exchange branch of the heat exchanger 2 (31) can be completely closed, and no flow is generated. Correspondingly, the three-way valve (50) points to the plate heat exchanger 24, the three-way valve 1 (51) points to the heat exchanger 1 (30), and the three-way valve 2 (52) points to the heat exchanger 2 (31) for the cooling circuit. The three-way valve (50) points to the diversion inlet of the dual heater, the three-way valve 1 (51) points to the heater 1 (41) (also the second heater) of the heat exchanger 1, and the three-way valve 2 (52) points to the heater 2 (42) (also the third heater) of the heat exchanger 2 (31) for the heating circuit.

[0142] It can be understood that, as described above, the heating power of the heat exchange branch corresponding to each heat exchanger can be automatically adjusted according to the temperature requirements of the battery area corresponding to the heat exchanger. When the heat exchange branch corresponding to the heat exchanger is closed by the regulating valve, the heating power is zero.

[0143] In this way, the temperature difference between different batteries can be reduced as much as possible while ensuring that the batteries are at the most suitable temperature, while saving energy consumed by the heater.

[0144] Optionally, in an embodiment of the present application, when the temperature of the target battery area is obtained and the temperature of the target battery area is lower than the second preset temperature, the target heater corresponding to the target heat exchanger of the target battery area heats the temperature of the temperature-control liquid of the heat exchange branch of the target heat exchanger to the target temperature-control liquid temperature, and adjusts the temperature-control liquid flow of the heat exchange branch of the target heat exchanger corresponding to the target battery area to the target temperature-control liquid flow through the regulating valve, so that the temperature of the target battery area is adjusted to the target temperature within a predetermined time, and the target temperature is higher than the second preset temperature and lower than the first preset temperature.

[0145] Exemplarily, the description of the above target temperature and the above target battery area can refer to the above description, which will not be repeated here.

[0146] like Figure 4 and Figure 5 As shown, Figure 4 and Figure 5 A schematic diagram showing the structure of a battery temperature regulating device in the case of multiple heaters, wherein: Figure 4 The number of control valves included is less than the number of heat exchangers. Figure 5 The number of control valves included is equal to the number of heat exchangers.

[0147] It can be understood that, based on the foregoing content, the battery temperature regulating device including multiple heaters in the embodiment of the present application may include regulating valves whose number is less than the number of heat exchangers, or may include regulating valves whose number is equal to or less than the number of heat exchangers.

[0148] The following will explain the different adjustment methods under these two types of regulating valves. In the following example of a battery temperature regulating device including multiple heaters, in order to characterize the role of the heater, the liquid heating process of the battery temperature regulating device is used for explanation:

[0149] exist Figure 4 and Figure 5 In the heating mode, the electronic expansion valve 2 (25) is closed, so that there is no heat exchange between the refrigerant and the coolant, so that the temperature control liquid no longer passes through the heat exchanger of the passenger compartment air conditioning system, and only flows through the heat exchanger 1 (30) and / or the heat exchanger 2 (31) in the battery area. That is, the battery temperature adjustment device in the heating mode and the heating / cooling mode of the air conditioner do not interfere with each other.

[0150] 1. The number of regulating valves in the battery temperature control device is less than the number of heat exchangers

[0151] 1) When the target battery area is battery area 2, and the temperature of battery area 2 is lower than the second preset temperature , the temperature of battery area 1 is greater than or equal to the second preset temperature In the case of Figure 4 The regulating valve in the battery area 1 closes the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1. In this case, the heater 1 of the battery area 1 does not heat and the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 will no longer have temperature control liquid flowing. At the same time, the heater 2 (42) of the battery area 2 heats the temperature control liquid, and the heated temperature control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will flow at the maximum flow rate, that is, only the battery area 2 is heated. Specifically, the pump body 29 drives the coolant to flow through the heater 2 (42) and the heat exchanger 2 (31).

[0152] 2) When the target battery areas are battery area 1 and battery area 2, and the temperature of battery area 2 is lower than the second preset temperature , the temperature of battery area 1 is also lower than the second preset temperature In the case of Figure 4 The regulating valve in opens the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1. In this case, heater 1 of battery area 1 is heated, and the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1 will have heated temperature control liquid flowing, while heater 2 (42) of battery area 2 is also heated, and heat exchanger 2 (31) corresponding to battery area 2 also has heated temperature control liquid flowing, battery area 1 (30) corresponding to heat exchanger 1 (30) and battery area 2 corresponding to heat exchanger 2 (31) are heated at the same time, and the flowing temperature control liquid temperatures may be the same or different. Specifically, regulating valve (32) is opened, at this time heat exchanger 1 (30) is opened, heat exchanger 2 (31) is opened, and water pump (9) drives the coolant to be divided into two paths, which flow through heater 1 (41), heat exchanger 1 (30) and heater 2 (42), heat exchanger 2 (31) at the same time.

[0153] 2. The number of regulating valves in the battery temperature control device is equal to the number of heat exchangers

[0154] 1) When the target battery area is battery area 2, and the temperature of battery area 2 is lower than the second preset temperature , the temperature of battery area 1 is greater than or equal to the second preset temperature In the case of Figure 5The regulating valve (32) in the battery area closes the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1, and at the same time opens the heat exchange branch of the heat exchanger 2 (31) corresponding to the battery area 2 through the regulating valve (32). In this case, the heater 1 (41) of the battery area 1 does not heat and the heat exchange branch of the heat exchanger 1 corresponding to the battery area 1 will no longer have temperature control liquid flowing. At the same time, the heater 2 (42) of the battery area 2 heats the temperature control liquid, and the heated temperature control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will flow at the maximum flow rate, that is, only the battery area 2 is heated. Specifically, the pump body 29 drives the coolant to flow through the heater 2 (42) and the heat exchanger 2 (31).

[0155] 2) When the target battery areas are battery area 1 and battery area 2, and the temperature of battery area 2 is lower than the second preset temperature , the temperature of battery area 1 is also lower than the second preset temperature In the case of Figure 5 The regulating valve in opens the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1, and at the same time, the heat exchange branch of heat exchanger 2 (31) corresponding to battery area 2 is opened through the regulating valve. In this case, heater 1 of battery area 1 is heated, and the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1 will have heated temperature-controlled liquid flowing, while heater 2 of battery area 2 is also heated, and the temperature-controlled liquid in heat exchanger 2 (31) corresponding to battery area 2 will also have heated temperature-controlled liquid flowing, and battery area 1 corresponding to heat exchanger 1 (30) and battery area 2 corresponding to heat exchanger 2 (31) are heated at the same time. Specifically, regulating valve (32) is opened, at this time, heat exchanger 1 (30) is opened, heat exchanger 2 (31) is opened, and water pump (9) drives the coolant to be divided into two paths, which flow through heater 1 (41), heat exchanger 1 (30) and heater 2 (42), heat exchanger 2 (31) at the same time.

[0156] (3) When the target battery area is battery area 1, the temperature of battery area 1 is lower than the second preset temperature , the temperature of battery area 2 is greater than the second preset temperature In the case of Figure 5The regulating valve (32) in the battery area 1 opens the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1, and at the same time closes the heat exchange branch of the heat exchanger 2 (31) corresponding to the battery area 2 through the regulating valve. In this case, the heater 1 of the battery area 1 is heated, and the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 will have a flow of heated temperature-controlled liquid, while the heater 2 of the battery area 2 is not heated, and at the same time, there is no flow of heated temperature-controlled liquid in the heat exchanger 2 (31) corresponding to the battery area 2, and the battery area 1 corresponding to the heat exchanger 1 (30) is heated alone. Specifically, at this time, the heat exchanger 1 (30) is turned on, the heat exchanger 2 (31) is turned off, and the pump body 29 drives the coolant to flow through the heater 1 (41) and then through the heat exchanger 1 (30).

[0157] Optionally, in the embodiment of the present application, the above Figure 4 and Figure 5 The battery temperature regulating device with multiple heaters also has a cooling function. Exemplarily, when the temperature of the target battery area is obtained and the temperature of the target battery area is higher than the first preset temperature, the multiple heaters are turned off and the temperature control liquid flow of the heat exchange branch of the target heat exchanger corresponding to the target battery area is adjusted to the target temperature control liquid flow through the regulating valve, so that the temperature of the target battery area is adjusted to the target temperature within a predetermined time, and the target temperature is higher than the second preset temperature and lower than the first preset temperature.

[0158] For example, the target temperature can refer to the above description and will not be described again here.

[0159] For example, in Figure 4 and Figure 5 In the process, the gaseous low-pressure refrigerant is converted into a gaseous high-pressure refrigerant through the compressor 21, and then releases heat through the environmental heat exchanger 28 and is converted into a liquid high-pressure refrigerant. The liquid high-pressure refrigerant is converted into a liquid low-pressure refrigerant through the expansion valve 27 and is divided into two paths, which absorb heat and are converted into a gaseous low-pressure refrigerant through the passenger compartment air conditioning system heat exchanger 23 and the plate heat exchanger 24 respectively. The gaseous low-pressure refrigerant returns to the compressor 21 through the electromagnetic four-way reversing valve 22.

[0160] Furthermore, it can be divided into that the number of regulating valves is less than the number of heat exchangers or the number of regulating valves is equal to the number of heat exchangers.

[0161] 1. The number of regulating valves is less than the number of heat exchangers

[0162] 1) When the target battery area is battery area 2, and the temperature of battery area 2 is greater than or equal to the first preset temperature , the temperature of battery area 1 is less than or equal to the second preset temperature In the case of Figure 4The regulating valve (32) in the heat exchanger 1 (30) corresponding to the battery area 1 closes the heat exchange branch. As can be seen from the above content, in this case, the warm liquid regulating line of the heat exchanger 1 (30) corresponding to the battery area 1 will no longer have temperature control liquid flowing, and at the same time, the cooled temperature control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will flow at the maximum flow rate. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger (4) and the heat exchanger 2 (31).

[0163] 2) When the target battery area is battery area 2, and the temperature of battery area 2 is greater than or equal to the first preset temperature , the temperature of battery area 1 is also greater than or equal to the first preset temperature In the case of Figure 4 The regulating valve in opens the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1. As can be seen from the above content, in this case, the heat exchange branch of heat exchanger 1 (30) corresponding to battery area 1 will have cooled temperature-control liquid flowing, and the temperature-control liquid in heat exchanger 2 (31) corresponding to battery area 2 will also have cooled temperature-control liquid flowing. Battery area 1 corresponding to heat exchanger 1 (30) and battery area 2 corresponding to heat exchanger 2 (31) are cooled at the same time. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and then is divided into two paths, flowing through heat exchanger 1 (30) and heat exchanger 2 (31) respectively.

[0164] 2. The number of regulating valves is equal to the number of heat exchangers

[0165] 1) When the target battery area is battery area 2, and the temperature of battery area 2 is greater than or equal to the first preset temperature , the temperature of battery area 1 is less than or equal to the second preset temperature In the case of Figure 5 The regulating valve (32) in the heat exchanger closes the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1. As can be seen from the above content, in this case, the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 will no longer have temperature control liquid flowing, and at the same time, the cooled temperature control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will flow at the maximum flow rate. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and the heat exchanger 2 (31).

[0166] 2) When the target battery area is battery area 1 and battery area 2, the temperature of battery area 2 is greater than or equal to the first preset temperature , the temperature of battery area 1 is also greater than or equal to the first preset temperature In the case of Figure 5The regulating valve (32) in the heat exchanger opens the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1. As can be seen from the above content, in this case, the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 will have a flow of cooled temperature-control liquid, and at the same time, the temperature-control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will also have a flow of cooled temperature-control liquid. The battery area 1 corresponding to the heat exchanger 1 (30) and the battery area 2 corresponding to the heat exchanger 2 (31) are cooled at the same time. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and then is divided into two paths, flowing through the heat exchanger 1 (30) and the heat exchanger 2 (31) respectively.

[0167] 3) When the target battery area is battery area 1 and the temperature of battery area 1 is less than , the temperature of battery area 2 is greater than or equal to the first preset temperature In the case of Figure 5 The regulating valve (32) in the heat exchanger opens the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1, and at the same time, the regulating valve (32) is used to close the heat exchange branch of the heat exchanger 1 corresponding to the battery area 2. It can be seen from the above content that in this case, the heat exchange branch of the heat exchanger 1 (30) corresponding to the battery area 1 will have a flow of cooled temperature-control liquid, and at the same time, the temperature-control liquid in the heat exchanger 2 (31) corresponding to the battery area 2 will no longer flow with cooled temperature-control liquid. The battery area 1 corresponding to the heat exchanger 1 (30) is heated up, and the battery area 2 corresponding to the heat exchanger 2 (31) is cooled down. Specifically, the pump body 29 drives the coolant to flow through the plate heat exchanger 24 and the heat exchanger 1 (30).

[0168] An embodiment of the present application further provides a battery system, which includes the aforementioned battery temperature regulating device.

[0169] The battery system comprises a first battery area and a second battery area. The first battery area is arranged corresponding to the first heat exchange branch, and the second battery area is arranged corresponding to the second heat exchange branch.

[0170] In a possible embodiment, a temperature variation range of the first battery region is smaller than a temperature variation range of the second battery region.

[0171] In the present application, the battery system includes a battery temperature regulating device, which includes at least one first heat exchange branch and at least one second heat exchange branch (the above-mentioned first heat exchange branch and the second heat exchange branch are connected in parallel and each first heat exchange branch and each second heat exchange branch are suitable for being set corresponding to a battery area). Among them, the first heat exchange branch includes a regulating valve and at least one heat exchanger arranged in series, and the second heat exchange branch includes at least one second heat exchanger. The first heat exchanger and the second heat exchanger are suitable for accommodating a temperature control liquid and exchanging heat with the corresponding battery area through the temperature control liquid. In this way, by arranging multiple heat exchangers on multiple heat exchange branches and regulating valves corresponding to one or more heat exchangers in the multiple heat exchangers, different battery areas can be temperature-regulated by using temperature control liquids through different heat exchangers, thereby improving the efficiency of temperature regulation. Therefore, when the temperatures of different battery areas of the battery are different, different battery areas can be temperature-regulated, so that the temperature difference between different battery areas is greatly reduced, and the uniformity of battery temperature is ensured.

[0172] An embodiment of the present application provides a temperature control device, which includes the aforementioned battery temperature control device, and the battery temperature control device also includes an external heat exchange circuit, the external heat exchange circuit includes an air-conditioning system heat exchanger, and the air-conditioning system heat exchanger is suitable for being set corresponding to the cockpit area and being set in series with the third heat exchanger.

[0173] Exemplarily, the above-mentioned battery temperature adjustment device is a device for adjusting the battery in a driving tool (such as a vehicle), and the driving tool often also has other structures, such as air conditioning. Therefore, the temperature adjustment device in the embodiment of the present application may also include an external heat exchange circuit having an air conditioning system heat exchanger.

[0174] like Figures 2 to 5 As shown, in Figures 2 to 5 , which is a temperature control device of the vehicle. The temperature control device includes a passenger compartment air conditioning system heat exchanger 3, which corresponds to the cockpit area and is arranged in series with the plate heat exchanger 24 (ie, the third heat exchanger).

[0175] Optionally, in an embodiment of the present application, the external heat exchange circuit is further provided with a first expansion valve and a second expansion valve, and the first expansion valve and the second expansion valve are arranged in parallel.

[0176] Exemplarily, the first expansion valve is arranged in series with the air conditioning system heat exchanger, and the second expansion valve is arranged in series with the third heat exchanger.

[0177] Exemplarily, the first expansion valve is used to control the flow of refrigerant in the heat exchanger of the air conditioning system.

[0178] Furthermore, the first expansion valve can control the flow rate of liquid refrigerant entering the heat exchange circuit where the heat exchanger of the air-conditioning system is located, thereby controlling the temperature controlled by the heat exchanger of the air-conditioning system.

[0179] Exemplarily, the second expansion valve is used to control the flow rate of the refrigerant in the heat exchanger (ie, the first heat exchanger and the second heat exchanger mentioned above) in the battery temperature adjustment device.

[0180] Furthermore, the second expansion valve can control the flow of liquid refrigerant into the heat exchange branch where the heat exchanger in the battery temperature adjustment device is located, thereby controlling the temperature of the battery temperature adjustment control.

[0181] It should be noted that the first expansion valve and the second expansion valve are used in a cooling mode.

[0182] like Figures 2 to 5 As shown, the liquid refrigerant enters the first expansion valve (25) and the second expansion valve (26) respectively after the external heat exchange circuit, and passes through the passenger compartment air conditioning system heat exchanger 23 and the plate heat exchanger 24 respectively to absorb heat and be converted into gaseous low-pressure refrigerant.

[0183] Optionally, in an embodiment of the present application, the above-mentioned battery temperature regulation device also includes an environmental heat exchange circuit, the above-mentioned environmental heat exchange circuit includes a third expansion valve and / or a fourth heat exchanger, the above-mentioned fourth heat exchanger is arranged between the above-mentioned third expansion valve and the compressor of the above-mentioned battery temperature regulation device, and is suitable for being set corresponding to the above-mentioned vehicle body environmental area.

[0184] Exemplarily, the compressor is arranged in series with the third expansion valve and / or the fourth heat exchanger.

[0185] It should be noted that the third expansion valve is used in the cooling mode.

[0186] Exemplarily, the fourth heat exchanger may be an environmental heat exchanger. It is understandable that the temperature regulating device may also be used to regulate the temperature of other areas except the area where the battery is located and the area where the cockpit is located.

[0187] Optionally, in an embodiment of the present application, when the battery temperature regulating device includes a third expansion valve, the third expansion valve is arranged in series with the first expansion valve and the second expansion valve which are arranged in parallel.

[0188] like Figures 2 to 5As shown, in the cooling mode, the gaseous low-pressure refrigerant is converted into a gaseous high-pressure refrigerant through the compressor 21, and then releases heat and is converted into a liquid high-pressure refrigerant through the environmental heat exchanger 28. The liquid high-pressure refrigerant is converted into a liquid low-pressure refrigerant through the expansion valve 27 and is divided into two paths, which absorb heat and are converted into a gaseous low-pressure refrigerant through the passenger compartment air conditioning system heat exchanger 23 and the plate heat exchanger 24 respectively. The gaseous low-pressure refrigerant returns to the compressor 21 through the electromagnetic four-way reversing valve 22.

[0189] It should be understood that the units recorded in the battery temperature regulating device correspond to the various steps in the method described in the accompanying drawings. Therefore, the operations and features described above for the method are also applicable to the battery temperature regulating device and the units contained therein, and will not be repeated here. The battery temperature regulating device can be pre-implemented in a browser or other security application of a computer device, or can be loaded into a browser or its security application of a computer device by downloading or the like. The corresponding units in the battery temperature regulating device can cooperate with the units in the computer device to implement the solution of the embodiment of the present application.

[0190] For the several modules or units mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0191] It should be noted that for details not disclosed in the battery temperature regulation device of the embodiment of the present application, please refer to the details disclosed in the above embodiments of the present application, which will not be repeated here.

[0192] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the aforementioned disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A battery temperature regulating device, characterized in that: The device comprises: at least one first heat exchange branch and at least one second heat exchange branch, the first heat exchange branch and the second heat exchange branch are connected in parallel, and each of the first heat exchange branch and each of the second heat exchange branch are suitable for being arranged corresponding to a battery area; The first heat exchange branch includes a regulating valve and at least one first heat exchanger arranged in series, and the second heat exchange branch includes at least one second heat exchanger, wherein the first heat exchanger and the second heat exchanger are suitable for accommodating a temperature-control liquid and exchanging heat with the corresponding battery area through the temperature-control liquid.

2. The device according to claim 1, characterized in that The device also includes: a temperature-controlled liquid flow controller; The temperature-control liquid flow controller is used to control the opening and closing state of the regulating valve and control the temperature-control liquid flow corresponding to the first heat exchanger.

3. The device according to claim 1, characterized in that The battery temperature regulating device further comprises a main heat exchange circuit, the first heat exchange branch circuit and the second heat exchange branch circuit are connected in parallel to the main heat exchange circuit, wherein the main heat exchange circuit is provided with a temperature control liquid output device.

4. The device according to claim 3, characterized in that The main heat exchange circuit is further provided with a third heat exchanger, and the third heat exchanger is suitable for exchanging heat with an external heat exchange circuit to adjust the temperature control liquid in the main circuit.

5. The device according to any one of claims 1 to 4, characterized in that: The temperature variation range of the battery region corresponding to the first heat exchanger is smaller than the temperature variation range of the battery region corresponding to the second heat exchanger.

6. The device according to claim 2, characterized in that The temperature-controlled liquid flow controller is specifically used to: obtain the temperature of the target battery area, and when the temperature of the target battery area is higher than the first preset temperature, control the opening of the regulating valve to a first target opening, so that the temperature of the target battery area is switched to the target temperature within a predetermined time; The target temperature is higher than a second preset temperature and lower than the first preset temperature, the first preset temperature is greater than the second preset temperature, and the target battery region is any battery region among the multiple battery regions.

7. The device according to claim 3, characterized in that The apparatus further comprises a first heater, and the temperature-controlled liquid output device is arranged in series with the first heater.

8. The device according to claim 7, characterized in that The temperature-controlled liquid flow controller is specifically used to: obtain the temperature of the target battery area, and when the temperature of the target battery area is lower than the second preset temperature, control the opening of the regulating valve to the second target opening so that the temperature of the target battery area is adjusted to the target temperature within a predetermined time, the target temperature is higher than the second preset temperature and lower than the first preset temperature, the first preset temperature is greater than the second preset temperature, and the target battery area is any battery area among the multiple battery areas.

9. The device according to any one of claims 1 to 4, characterized in that: The device further comprises: a second heater and a third heat exchanger; The second heater is disposed in the first heat exchange branch to adjust the temperature of the temperature-control liquid in the first heat exchange branch; The third heater is arranged in the first heat exchange branch to adjust the temperature of the temperature-control liquid in the second heat exchange branch.

10. The device according to claim 7, characterized in that The temperature-control liquid flow controller is specifically used to: obtain the temperature of the target battery area, and when the temperature of the target battery area is lower than the second preset temperature, the target heater corresponding to the target heat exchanger of the target battery area heats the temperature of the temperature-control liquid of the heat exchange branch of the target heat exchanger to the target temperature-control liquid temperature, and adjusts the temperature-control liquid flow of the heat exchange branch of the corresponding target heat exchanger of the target battery area to the target temperature-control liquid flow through the regulating valve, so that the temperature of the target battery area is adjusted to the target temperature within a predetermined time, and the target temperature is higher than the second preset temperature and lower than the first preset temperature; or The temperature-controlled liquid flow controller is specifically used to obtain the temperature of a target battery area, and when the temperature of the target battery area is higher than a first preset temperature, turn off the multiple heaters and adjust the temperature-controlled liquid flow of the heat exchange branch of the target heat exchanger corresponding to the target battery area to a target temperature-controlled liquid flow through the regulating valve, so that the temperature of the target battery area is adjusted to a target temperature within a predetermined time, and the target temperature is higher than the second preset temperature and lower than the first preset temperature.

11. A battery system, characterized in that: The battery system comprises the battery temperature regulating device according to any one of claims 1 to 10; The battery system includes a first battery area and a second battery area, the first battery area is arranged corresponding to the first heat exchange branch, and the second battery area is arranged corresponding to the second heat exchange branch.

12. The battery system according to claim 11, characterized in that: The temperature variation range of the first battery region is smaller than the temperature variation range of the second battery region.

13. A temperature regulating device, characterized in that: The temperature regulating device includes the battery temperature regulating device according to any one of claims 1 to 11, and the battery temperature regulating device also includes an external heat exchange circuit, the external heat exchange circuit includes an air conditioning system heat exchanger, and the air conditioning system heat exchanger is suitable for being set corresponding to the cockpit area and being set in series with the third heat exchanger.

14. The device according to claim 13, characterized in that The external heat exchange circuit is further provided with a first expansion valve and a second expansion valve, wherein the first expansion valve and the second expansion valve are arranged in parallel; Wherein, the first expansion valve is arranged in series with the air conditioning system heat exchanger, and the second expansion valve is arranged in series with the third heat exchanger.

15. The device according to claim 14, characterized in that The battery temperature regulating device further comprises an environmental heat exchange circuit, the environmental heat exchange circuit comprises a third expansion valve and / or a fourth heat exchanger, the fourth heat exchanger is arranged between the third expansion valve and the compressor of the battery temperature regulating device, and is suitable for being arranged corresponding to the vehicle body environmental area; The compressor is arranged in series with the third expansion valve and / or the fourth heat exchanger.

16. The device according to claim 15, characterized in that In a case where the battery temperature adjustment device includes a third expansion valve, the third expansion valve is arranged in series with the first expansion valve and the second expansion valve which are arranged in parallel.

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