Battery thermal management device

Abstract

The utility model relates to the technical field of electric automobiles, in particular to a battery thermal management device. The battery heat management device comprises a battery replacement frame, a compressor module, a condenser and a condensation fan, the compressor module is installed in the battery replacement frame, the condenser and the condensation fan are arranged outside the battery replacement frame, and the condensation fan is arranged close to the condenser to conduct air blowing heat dissipation on the condenser. The condenser and the compressor module are connected through a refrigerant pipe to form a refrigerant loop, the compressor module comprises a cooling liquid loop, and the cooling liquid loop is used for being connected to the battery heat exchange plate to cool the battery. The compressor module is installed in the battery replacing frame, the condenser and the condensation fan are arranged outside the battery replacing frame, the situation that the air outlet of the condensation fan is blocked by the battery replacing frame is avoided, smooth air exhaust is guaranteed, the condenser and the condensation fan can be arranged at any position with good ventilation outside the battery replacing frame, the arrangement positions are more flexible, and smooth air exhaust is fully guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile technical field especially relates to a battery heat management device. BACKGROUND

[0002] Under the double drive of policy and market, pure electric commercial vehicles perform well in the fields of steel enterprises, port enterprises, coal plants, mining, tunnel construction, etc., and have started large-scale application. With the continuous popularization and application of pure electric commercial vehicles, customers' range anxiety becomes more and more obvious, so the battery swap mode emerges as the times require and occupies a large share of pure electric commercial vehicles.

[0003] At present, the battery heat management unit of pure electric battery swap commercial vehicle mostly uses a closed independent heat management product. The Chinese utility model patent with the authorization announcement number CN216085117U discloses a battery independent heat management device suitable for electric engineering machinery, which comprises a shell and components such as a compressor, a condenser, an expansion valve, a heat exchanger and an electronic water pump installed in the shell. The compressor, the condenser, the expansion valve and the heat exchanger are connected in sequence through refrigerant pipelines to form a refrigerant circulation loop, i.e. a refrigerant loop. A condensing fan is installed outside the shell and is arranged near the condenser to discharge heat in the shell to the outside. An inlet of the electronic water pump is connected with a water inlet pipe, and an outlet of the electronic water pump is connected to an inlet of the heat exchanger through a pipeline. An outlet of the heat exchanger is connected with a water outlet pipe which is used to connect to a water inlet of a battery cooling plate. A water outlet of the battery cooling plate is connected with the water inlet pipe to form a water circulation loop, i.e. a cooling liquid loop. The refrigerant circulation loop and the water circulation loop are controlled by a controller to regulate the temperature of the battery.

[0004] The existing battery heat management unit is usually installed as a whole in the battery swap frame. Inlet and outlet holes are arranged on the side plate of the battery swap frame along the air direction of the unit. The wind in the external environment enters the battery swap frame from the inlet hole, then enters the inside of the unit, and the condensing fan blows the hot air in the unit to the outside. The problem with this arrangement is that the unit is installed as a whole in the battery swap frame, and the battery swap frame inevitably blocks the air outlet of the unit, causing poor air exhaust of the unit. The hot air cannot be discharged in time, and the hot air will enter the inside of the unit again from the air inlet of the unit, forming hot air backflow and causing the unit to malfunction. In addition, since the unit is of a closed structure, the sealing plate of the unit needs to be disassembled for maintenance of the components in the unit. It is not convenient to clean the condenser arranged in the unit when the condenser is dirty and blocked. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a battery heat management device to solve the problem of poor air exhaust of the unit caused by the installation of the existing battery heat management unit as a whole in the battery swap frame.

[0006] To achieve the above object, the utility model discloses the following technical scheme:

[0007] A battery heat management device, comprising a battery replacement frame, a compressor module, a condenser and a condensing fan, the compressor module is installed in the battery replacement frame, the condenser and the condensing fan are arranged outside the battery replacement frame, the condensing fan is arranged close to the condenser to blow and radiate heat for the condenser, the condenser and the compressor module are connected through a refrigerant pipe to form a refrigerant circuit, the compressor module comprises a cooling liquid circuit, and the cooling liquid circuit is used to be connected to a battery heat exchange plate to cool the battery.

[0008] Further, the condenser and the condensing fan are modularly designed, the condenser is provided with a mounting plate, and the condensing fan is mounted on the mounting plate.

[0009] Further, the condenser and the condensing fan are installed on the top of the battery replacement frame, and the exhaust port of the condensing fan faces upward.

[0010] Further, the compressor module comprises a compressor, a plate heat exchanger, a circulating water pump and a bottom plate frame, the compressor, the plate heat exchanger and the circulating water pump are arranged on the bottom plate frame, the compressor, the condenser and the plate heat exchanger are sequentially connected through refrigerant pipes to form the refrigerant circuit, the cooling liquid inlet and the cooling liquid outlet of the plate heat exchanger are respectively connected with cooling liquid pipelines, the cooling liquid pipelines are used to be connected to the battery heat exchange plate, and the circulating water pump is connected to the cooling liquid pipelines to constitute the cooling liquid circuit together with the cooling liquid pipelines and the plate heat exchanger.

[0011] Further, the bottom plate frame comprises a rectangular bottom frame, a heat exchanger support is arranged at a corner of the rectangular bottom frame, the plate heat exchanger is mounted on the heat exchanger support, a water pump support is arranged on the rectangular bottom frame and close to the heat exchanger support on the inner side of the heat exchanger support, the circulating water pump is mounted on the water pump support, a compressor mounting position is arranged on the rectangular bottom frame and opposite to the plate heat exchanger support and the water pump support, and the compressor is mounted at the compressor mounting position.

[0012] Further, first and second refrigerant pipe supports are arranged on opposite two frame edges of the rectangular bottom frame respectively, the first refrigerant pipe support is between the heat exchanger support and the compressor mounting position and is used to fix the refrigerant pipe connected between the plate heat exchanger and the compressor inlet, the second refrigerant pipe support is opposite to the first refrigerant pipe support and is used to fix the refrigerant pipe connected between the compressor outlet and the condenser inlet and the refrigerant pipe connected at the condenser outlet.

[0013] Further, a cooling liquid pipeline support is arranged on the rectangular bottom frame and close to the heat exchanger support and the water pump support to fix the cooling liquid pipelines.

[0014] Further, the rectangular bottom frame is provided with a cooling liquid pipeline support, the cooling liquid pipeline support is arranged close to the heat exchanger support and the water pump support, so as to fix the cooling liquid pipeline, and the cooling liquid pipeline support and the second refrigerant pipe support are located on the same frame edge.

[0015] Further, the rectangular bottom frame is provided with a dryer support, the dryer support is located between the second refrigerant pipe support and the heat exchanger support, a drying filter is fixedly installed on the dryer support, and the drying filter is connected to the refrigerant circuit between the condenser outlet and the plate heat exchanger.

[0016] Further, the rectangular bottom frame is welded by a plurality of cross beams and a plurality of longitudinal beams, and each cross beam and longitudinal beam is a U-shaped aluminum alloy plate.

[0017] Beneficial effects: the utility model discloses a factor change type invention. The compressor module is installed in the battery replacement frame, the condenser and the condensing fan are arranged outside the battery replacement frame, the condenser and the compressor module are connected to form a refrigerant circuit through the refrigerant pipe, refrigerant circulation flow is realized, the cooling liquid circuit is used to be connected to the battery heat exchange plate to cool the battery, in this way, the battery replacement frame avoids shielding the condensing fan exhaust port, guarantees smooth exhaust, the condenser and the condensing fan can be arranged at any well-ventilated position outside the battery replacement frame, the arrangement position is more flexible, and the smooth exhaust is fully guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is overall structure schematic diagram of battery thermal management device of the utility model;

[0019] Figure 2 It is structure schematic diagram of condenser module;

[0020] Figure 3 It is device arrangement schematic diagram of compressor module;

[0021] Figure 4 It is structure schematic diagram of bottom plate frame;

[0022] Figure 5 It is principle diagram of battery thermal management device of the utility model;

[0023] In the figure: 1, condensing fan; 2, condenser; 3, mounting plate; 4, refrigerant pipe; 5, compressor module; 6, compressor; 7, throttling expansion valve; 8, plate heat exchanger; 9, circulating water pump; 10, controller; 11, coolant pipe; 12, drying filter; 13, bottom plate frame; 14, rectangular bottom frame; 14-1, cross beam; 14-2, longitudinal beam; 15, support plate; 16, first refrigerant pipe support; 17, heat exchanger support; 18, water pump support; 19, coolant pipe support; 19-1, coolant pipe mounting hole; 20, second refrigerant pipe support; 20-1, refrigerant pipe mounting hole; 21, dryer support; 22, compressor mounting position; 23, compressor fixing hole; 24, temperature sensor; 25, low-pressure charging valve; 26, low-pressure switch; 27, high-pressure switch; 28, pressure sensor; 29, high-pressure charging valve. DETAILED DESCRIPTION

[0024] The existing battery thermal management unit is integrally installed in the battery replacement frame, the battery replacement frame can shield the exhaust port of the unit, the exhaust of the unit is not smooth, the hot air cannot be discharged in time, and the hot air enters the unit from the air inlet of the unit again, hot air backflow is formed, the temperature in the unit is too high, and the unit fails. The battery thermal management device provided by the utility model can solve the problem of hot air backflow.

[0025] The basic inventive concept of the utility model is that: the compressor module including components such as a compressor and a plate heat exchanger is installed in a battery replacement frame, a condenser and a condensing fan are arranged outside the battery replacement frame, the condenser and the compressor module are connected through a refrigerant pipe to form a refrigerant loop, so as to realize the circulation of refrigerant, the compressor module includes a coolant loop, so as to realize the circulation of coolant and cool the battery. Since the condenser and the condensing fan are arranged outside the battery replacement frame, the battery replacement frame can avoid shielding the exhaust port of the condensing fan, so that the exhaust is smooth.

[0026] Based on the above inventive concept, the utility model embodiment is described in detail below.

[0027] As Figure 1As shown, the battery thermal management device comprises a battery replacement frame (not shown in the figure), a compressor module 5, a condenser 2 and a condensing fan 1. The compressor module 5 is installed in the battery replacement frame, the condenser 2 and the condensing fan 1 are arranged outside the battery replacement frame, the condensing fan 1 is arranged close to the condenser 2 to blow air to the condenser 2 for heat dissipation, and the gas flow is accelerated by air suction and blowing to take away the heat of the condenser 2. The condenser 2 and the compressor module 5 are connected by a refrigerant pipe 4 to form a refrigerant circuit for circulating refrigerant. The compressor module 5 comprises a cooling liquid circuit, the cooling liquid circuit is used to be connected to a battery heat exchange plate, and the cooling liquid circulates in the cooling liquid circuit to cool the battery. The condenser 2 and the condensing fan 1 can be arranged at any position outside the battery replacement frame with good ventilation, avoiding the battery replacement frame from blocking the air outlet of the condensing fan 1, thereby ensuring smooth air exhaust and avoiding hot air backflow.

[0028] Preferably, the condenser 2 and the condensing fan 1 can be modularly designed, as shown in Figure 2 As shown, the condenser 2 is provided with a mounting plate 3, and the condensing fan 1 is mounted on the mounting plate 3. The condenser 2 and the condensing fan 1 are integrated on one mounting plate 3 to form a condenser module. After the modular design of the condenser 2 and the condensing fan 1, whether the condenser module is installed on the outside of the battery replacement frame or other positions outside the battery replacement frame with good ventilation, the installation is more convenient, and the installation efficiency can be improved. The condensing fan 1 is provided with two, which further improves the heat dissipation capacity.

[0029] In one embodiment, as shown in Figures 1-2 The condenser module is installed on the top of the battery replacement frame. The arrow in the figure shows the direction of the wind. The condenser 2 and the condensing fan 1 are installed on the top of the battery replacement frame, the air outlet of the condensing fan 1 faces upward, the condensing fan 1 is an upper air outlet, which conforms to the thermodynamic characteristics of hot air upward, and is more conducive to ensuring smooth air exhaust and solving the problem of hot air backflow.

[0030] In addition, the condenser 2 is arranged outside the battery replacement frame, which can make the condenser 2 very convenient to clean without the need to disassemble the unit for cleaning.

[0031] The device arrangement of the compressor module is as shown in Figure 3As shown, it comprises a compressor 6, a plate heat exchanger 8, a circulating water pump 9, a controller 10, a bottom frame 13, etc. The compressor 6, the plate heat exchanger 8, the circulating water pump 9 and the controller 10 are all arranged on the bottom frame 13, and the bottom frame 13 is not enclosed by a plate on its periphery, and each component is exposed. The refrigerant inlet of the plate heat exchanger 8 is connected with a refrigerant pipe 4, which is used to be connected with the outlet of the condenser 2, and the refrigerant pipe 4 is connected with a throttling expansion valve 7 and a drying filter 12; the refrigerant outlet of the plate heat exchanger 8 is connected with the inlet of the compressor 6 through the refrigerant pipe 4; and the outlet of the compressor 6 is connected with a refrigerant pipe 4, which is used to be connected with the inlet of the condenser 2. The plate heat exchanger 8, the compressor 6 and the condenser 2 are sequentially connected through the refrigerant pipe 4 to form a refrigerant circuit. The cooling liquid inlet and the cooling liquid outlet of the plate heat exchanger 8 are respectively connected with a cooling liquid pipe 11, and the cooling liquid pipe 11 connected with the cooling liquid outlet is connected with the circulating water pump 9. The cooling liquid pipe 11 is used to be connected with the battery heat exchange plate to form a cooling liquid circuit to realize the circulation of the cooling liquid and cool the battery.

[0032] The structure of the bottom frame is shown in Figure 4 As shown, it comprises a rectangular bottom frame 14, a support plate 15 welded at one corner of the rectangular bottom frame 14, a heat exchanger support 17 and a water pump support 18 arranged on the support plate 15, the heat exchanger support 17 used to fixedly install the plate heat exchanger, the water pump support 18 arranged on the inner side of the heat exchanger support 17 and close to the heat exchanger support 17, used to install the circulating water pump 9. The arrangement of the water pump support 18 close to the heat exchanger support 17 makes the circulating water pump 9 close to the plate heat exchanger 8, which can shorten the length of the cooling liquid pipe 11 connected between the circulating water pump 9 and the plate heat exchanger 8, and the structure arrangement is more compact. The rectangular bottom frame 14 is provided with a compressor installation position 22 on the opposite side of the plate heat exchanger support 17 and the water pump support 18, and a plurality of compressor fixing holes 23 are arranged at the compressor installation position 22, used to fixedly install the compressor 6. The arrangement of the compressor 6 on the opposite side of the plate heat exchanger 8 and the circulating water pump 9 is convenient for the connection of the refrigerant pipe 4 between the compressor 6 and the plate heat exchanger 8, avoids the interference between the refrigerant pipe 4 and the cooling liquid pipe 11 connected between the circulating water pump 9 and the plate heat exchanger 8, and makes the refrigerant pipe 4 and the cooling liquid pipe 11 not cross in space.

[0033] The first and second refrigerant pipe supports are respectively arranged on opposite frame edges of the rectangular base frame 14. The first refrigerant pipe support 16 is located between the heat exchanger support 17 and the compressor installation position 22, and is used for fixing the refrigerant pipe 4 connected between the plate heat exchanger 8 and the inlet of the compressor 6. The second refrigerant pipe support 20 is located on the opposite side of the first refrigerant pipe support 16, and is used for fixing the refrigerant pipe 4 connected with the inlet and outlet of the condenser 2. By arranging the refrigerant pipe 4 support to fix the refrigerant pipe 4, the vibration of the refrigerant pipe 4 can be reduced, and the reliability of the pipeline can be improved. The first refrigerant pipe support 16 is located near the middle position between the heat exchanger support 17 and the compressor installation position 22, so that the refrigerant pipe 4 connected between the plate heat exchanger 8 and the inlet of the compressor 6 can be more reliably fixed. The second refrigerant pipe support 20 is located on the opposite side of the first refrigerant pipe support 16, so that the refrigerant pipes 4 of different sections do not interfere with each other in space, and the pipeline arrangement is more convenient.

[0034] The first refrigerant pipe support 16 is erected on the rectangular base frame 14. The top of the first refrigerant pipe support 16 is used for supporting and fixing the refrigerant pipe 4 connected between the plate heat exchanger 8 and the inlet of the compressor 6. The second refrigerant pipe support 20 is provided with two refrigerant pipe mounting holes 20-1. The two refrigerant pipes 4 connected with the inlet and outlet of the condenser 2 are respectively arranged in the two refrigerant pipe mounting holes 20-1, so that the vibration of the refrigerant pipe 4 can be further reduced. The second refrigerant pipe support 20 is an L-shaped support. The horizontal plate of the L-shaped support is fixed on the rectangular base frame 14. The vertical plate is provided with two refrigerant pipe mounting holes 20-1 along the diagonal line.

[0035] The rectangular base frame 14 is also provided with a cooling liquid pipeline support 19. The cooling liquid pipeline support 19 is arranged close to the heat exchanger support 17 and the water pump support 18, and is used for fixing the cooling liquid pipeline 11. The cooling liquid pipeline support 19 is arranged close to the heat exchanger support 17 and the water pump support 18, so that the length of the cooling liquid pipeline 11 connected between the battery heat exchange plate and the circulating water pump 9 and between the battery heat exchange plate and the plate heat exchanger 8 can be shortened, and the structure arrangement is more compact. The cooling liquid pipeline support 19 and the second refrigerant pipe support 20 are located on the same frame edge of the rectangular base frame 14. In this way, the inlet and outlet refrigerant pipes (i.e. the refrigerant pipes 4 connected with the inlet and outlet of the condenser 2) and the inlet and outlet cooling liquid pipelines (i.e. the cooling liquid pipelines 11 connected with the inlet and outlet of the battery heat exchange plate) of the compressor module 5 are arranged to enter and exit from the same side of the battery replacement frame, so that the overall arrangement of the battery thermal management device is more compact.

[0036] The structure of the cooling liquid pipeline support 19 is similar to that of the second refrigerant pipeline support 20, and the L-shaped support has a horizontal plate fixed on the rectangular bottom frame 14 and a vertical plate provided with two cooling liquid pipeline mounting holes 19-1 along diagonal lines, two cooling liquid pipelines 11 connected with the inlet and outlet of the battery heat exchange plate are respectively mounted in the two cooling liquid pipeline mounting holes 19-1, so that the vibration of the cooling liquid pipelines 11 can be reduced, and the fixing is more reliable.

[0037] The rectangular bottom frame 14 is further provided with a dryer support 21 between the second refrigerant pipeline support 20 and the heat exchanger support 17, and the dryer support 21 is used for fixing and mounting the drying filter 12 connected to the refrigerant circuit between the condenser 2 outlet and the plate heat exchanger 8. The dryer support 21 is between the second refrigerant pipeline support 20 and the heat exchanger support 17, which is beneficial to shorten the length of the refrigerant circuit connected between the condenser 2 outlet and the plate heat exchanger 8, and to accelerate the flow of the refrigerant. The adjacent two beams 14-1 of the rectangular bottom frame 14 are welded with a support plate 15, and the dryer support 21 is fixed on the support plate 15.

[0038] The rectangular bottom frame 14 is welded by a plurality of beams 14-1 and a plurality of longitudinal beams 14-2, and each of the beams 14-1 and the longitudinal beams 14-2 is a U-shaped aluminum alloy plate to ensure sufficient structural strength. The opening of each beam 14-1 and longitudinal beam 14-2 is welded with a reinforcing plate, and the reinforcing plate is used to be fixed to the battery replacement frame. The beams 14-1 and the longitudinal beams 14-2 are distributed below the key components such as the compressor 6, the plate heat exchanger 8 and the circulating water pump 9, and the bottom plate of the through-paved bottom plate is cancelled, and the frame is welded and manufactured simply, which can meet the needs of reducing the weight and cost of the whole vehicle.

[0039] Compared with the closed independent battery thermal management unit, the compressor module 5 cancels the sheet metal sealing plate around the unit, the overall weight is reduced, and when the components are maintained, only the corresponding side plate of the battery replacement frame needs to be removed, so that the components of the compressor module 5 are exposed, and the maintenance is more convenient.

[0040] In addition, for the refrigerant pipe connecting the compressor module 5 and the condenser module, a "steel joint + rubber hose buckling" damping scheme is adopted, which can improve the reliability of the pipeline and reduce the pipeline leakage problem caused by vibration.

[0041] The principle of the battery thermal management device of the utility model is as follows Figure 5As shown: high temperature and high pressure refrigerant gas from the compressor 6 into the condenser module cooling (by condensing fan forced to the environment heat dissipation), after drying, throttling expansion valve 7 throttling into the plate heat exchanger 8, low temperature refrigerant in the plate heat exchanger 8 with cooling liquid heat exchange, and then the refrigerant gas back to the compressor 6. In the plate heat exchanger 8 after heat exchange of low temperature cooling liquid through the circulating water pump 9 into the battery heat exchanger plate, and the battery heat exchange, so the cycle.

[0042] The cooling liquid inlet and outlet of the plate heat exchanger 8 are connected to the cooling liquid pipeline 11, and temperature sensors 24 are arranged on the cooling liquid pipeline 11 respectively to detect the backflow temperature and the outflow temperature of the cooling liquid. A low-pressure charging valve 25 and a low-pressure switch 26 are arranged on the refrigerant pipeline 4 between the refrigerant outlet of the plate heat exchanger 8 and the inlet of the compressor 6, a temperature sensor 24, a high-pressure switch 27 and a pressure sensor 28 are arranged on the refrigerant pipeline 4 between the outlet of the compressor 6 and the inlet of the condenser 2, and a high-pressure charging valve 29 is arranged on the refrigerant pipeline 4 between the outlet of the condenser 2 and the refrigerant inlet of the plate heat exchanger 8.

[0043] Of course, the utility model is not limited to the implementation in the above embodiment.

[0044] For example, in another embodiment, the condenser and the condensing fan are not modularly designed, and are independently installed, the condenser is installed on the battery replacement frame, and the condensing fan is installed on another support, and the condensing fan is arranged close to the condenser to blow air to dissipate heat.

[0045] For example, in another embodiment, the condenser and the condensing fan are installed on other outer sides of the battery replacement frame, such as the left side, the right side, the front side or the rear side, and air is blown from the side. Of course, the condenser and the condensing fan can also not be installed on the battery replacement frame, but can be arranged on other components outside the battery replacement frame, as long as the ventilation is good.

[0046] For example, in another embodiment, the compressor module is a closed structure, including a shell, and the compressor, the plate heat exchanger, the circulating water pump and other components are arranged in the shell. Since the main heat generating component is the condenser, and the condenser has been moved out of the shell, the components of the compressor module will not be damaged due to high temperature, and when the compressor module is maintained, the corresponding sealing plate of the shell needs to be disassembled to maintain the components.

[0047] For example, in another embodiment, the heat exchanger support is arranged in the middle region of the rectangular base frame, the plate heat exchanger is installed on the heat exchanger support, the water pump support and the compressor mounting position are arranged on the opposite sides of the heat exchanger support along the length direction of the rectangular base frame, the circulating water pump is installed on the water pump support, and the compressor is installed at the compressor mounting position. It can be understood that the positions of the compressor, the circulating water pump, the plate heat exchanger and other components can be flexibly adjusted, the positions of the refrigerant pipe support and the cooling liquid pipe support can also be changed to adapt to the connection and arrangement of the refrigerant pipe and the cooling liquid pipe, and the position of the dryer support can also be changed to facilitate the connection of the drying filter to the refrigerant circuit. Under the premise that the overall size meets the installation requirements, the positions of these components of the compressor module can be changed.

[0048] For example, in another embodiment, the first and second refrigerant pipe supports can also be arranged on the adjacent two frame edges of the rectangular base frame, or can not be arranged on the frame edges, but arranged on the middle beam or the longitudinal beam of the rectangular base frame, and the positions of the first and second refrigerant pipe supports are adjusted according to the relative positions of the plate heat exchanger, the compressor and the condenser.

[0049] For example, in another embodiment, the cooling liquid pipe support and the second refrigerant pipe support are on the adjacent two frame edges of the rectangular base frame, at this time, the refrigerant pipe connected with the inlet and outlet of the condenser enters and exits from one side of the battery replacement frame, and the cooling liquid pipe connected with the inlet and outlet of the battery heat exchange plate enters and exits from the adjacent side of the battery replacement frame. In other embodiments, the cooling liquid pipe support and the second refrigerant pipe support can also be on the opposite two frame edges of the rectangular base frame.

[0050] For example, in another embodiment, the rectangular base frame includes a plurality of base plates, and the skin is arranged on the base plates, and the components of the compressor module are arranged on the skin.

[0051] The above is only a preferred embodiment of the present application, and is not used to limit the present application, the patent protection scope of the present application is subject to the claims, and any equivalent structural changes made by referring to the contents of the specification and drawings of the present application should also be included in the protection scope of the present application.

Claims

1. A battery thermal management device, characterized in that: It includes a battery swapping frame, a compressor module, a condenser, and a condenser fan. The compressor module is installed inside the battery swapping frame, while the condenser and condenser fan are located outside the battery swapping frame. The condenser fan is positioned close to the condenser to blow air and dissipate heat from the condenser. The condenser and the compressor module are connected by a refrigerant pipe to form a refrigerant circuit. The compressor module includes a coolant circuit, which is used to connect to the battery heat exchange plate to cool the battery.

2. The battery thermal management device according to claim 1, characterized in that: The condenser and condenser fan are modularly designed, with a mounting plate on the condenser and the condenser fan mounted on the mounting plate.

3. The battery thermal management device according to claim 1 or 2, characterized in that: The condenser and condenser fan are installed on top of the battery swapping frame, with the condenser fan's exhaust vent facing upwards.

4. The battery thermal management device according to claim 1 or 2, characterized in that: The compressor module includes a compressor, a plate heat exchanger, a circulating water pump, and a base frame. The compressor, plate heat exchanger, and circulating water pump are all mounted on the base frame. The compressor, condenser, and plate heat exchanger are sequentially connected by refrigerant pipes to form the refrigerant circuit. Coolant pipes are connected to the coolant inlet and coolant outlet of the plate heat exchanger, respectively. The coolant pipes are used to connect to the battery heat exchange plate. The circulating water pump is connected to the coolant pipes and together with the coolant pipes and plate heat exchanger, forms the coolant circuit.

5. The battery thermal management device according to claim 4, characterized in that: The base frame includes a rectangular base frame, a heat exchanger bracket is provided at one corner of the rectangular base frame, the plate heat exchanger is installed on the heat exchanger bracket, a water pump bracket is provided on the inner side of the rectangular base frame near the heat exchanger bracket, a circulating water pump is installed on the water pump bracket, and a compressor mounting position is provided on the rectangular base frame on the opposite side of the plate heat exchanger bracket and the water pump bracket, and the compressor is installed at the compressor mounting position.

6. The battery thermal management device according to claim 5, characterized in that: The rectangular base frame has a first and a second refrigerant pipe bracket on its two opposite sides. The first refrigerant pipe bracket is located between the heat exchanger bracket and the compressor mounting position and is used to fix the refrigerant pipe connecting the plate heat exchanger and the compressor inlet. The second refrigerant pipe bracket is located on the opposite side of the first refrigerant pipe bracket and is used to fix the refrigerant pipe connecting the compressor outlet and the condenser inlet, as well as the refrigerant pipe connected at the condenser outlet.

7. The battery thermal management device according to claim 5, characterized in that: A coolant pipe support is provided on the rectangular base frame. The coolant pipe support is located near the heat exchanger support and the water pump support to fix the coolant pipes.

8. The battery thermal management device according to claim 6, characterized in that: A coolant pipe support is provided on the rectangular base frame. The coolant pipe support is located close to the heat exchanger support and the water pump support to fix the coolant pipe. The coolant pipe support and the second refrigerant pipe support are located on the same frame edge.

9. The battery thermal management device according to claim 6, characterized in that: A dryer bracket is provided on the rectangular base frame. The dryer bracket is located between the second refrigerant pipe bracket and the heat exchanger bracket. A dryer filter is fixedly installed on the dryer bracket. The dryer filter is connected to the refrigerant circuit between the condenser outlet and the plate heat exchanger.

10. The battery thermal management device according to any one of claims 5-9, characterized in that: The rectangular base frame is welded together from several horizontal beams and several vertical beams, and each horizontal beam and vertical beam is made of U-shaped aluminum alloy sheet.

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