Battery pack heat management device with liquid cooling channel

Abstract

The utility model provides a battery pack heat management device with a liquid cooling channel, and relates to the technical field of battery pack heat management devices, the battery pack heat management device comprises a shell and a dust filtering plate, the side surface of the shell is fixedly provided with a water tank, the side surface of the shell is fixedly provided with a water pump, the water delivery end of the water pump is communicated with a water inlet pipe, and the water inlet pipe is communicated with a water outlet pipe. And a liquid cooling pipeline is arranged on the inner side of the shell. According to the battery pack cooling device, the water tank, the water pump, the water inlet pipe, the water outlet pipe, the cooling bin, the water guide plate, the mounting plate, the fan and the liquid cooling pipeline are arranged, so that cooling liquid can be driven to circularly flow in the liquid cooling pipeline in the working process, and the battery pack can be kept in a proper temperature range under various working conditions; the battery pack cooling system can be used for ensuring the performance, the service life and the safety of a battery pack, can provide an air cooling effect for cooling liquid after absorbing heat, and prevents the cooling liquid from being overheated after working for a long time, so that the load of the cooling system is reduced, and the efficiency and the reliability of the cooling system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack thermal management devices, in particular to a battery pack thermal management device with a liquid cooling channel. Background Technique

[0002] The battery pack thermal management device is one of the crucial components in electric vehicles such as electric cars. Its design aims to ensure that the battery pack can maintain an appropriate temperature range under various working conditions to ensure performance, lifespan, and safety. The patent with publication number CN218939809U discloses a battery pack thermal management device, which includes a battery box. A battery cover is fixedly installed on the top of the battery box. Heat-conducting frames and battery bodies are installed in a staggered array inside the battery box. Partition plates are installed in an array inside the heat-conducting frames. A coolant is filled inside the partition plates. A heat-conducting rod is fixedly installed in the middle of the coolant. The bottom of the heat-conducting rod penetrates through the bottom of the battery box and is fixedly installed with a heat-conducting sheet. For this kind of battery pack thermal management device, the generated heat will be quickly absorbed by the adjacent heat-conducting frame and then transferred to the coolant inside the heat-conducting frame, thereby reducing the heat of the battery pack. However, when this kind of battery pack thermal management device is used for a relatively long time in practice, the temperature of the internal coolant cannot be cooled and its temperature will also rise, which may affect the performance, lifespan, and safety of the battery pack and needs to be improved. Content of the Utility Model

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technique.

[0004] The utility model adopts the following technical scheme: A battery pack thermal management device with a liquid cooling channel, which includes a housing and a dust filter plate. A water tank is fixedly installed on the side of the housing. A water pump is fixedly installed on the side of the housing. The water delivery end of the water pump is communicated with a water inlet pipe. A liquid cooling pipe is arranged inside the housing. An outlet pipe is communicated with the surface of the liquid cooling pipe. A cooling chamber is fixedly installed on the side of the housing. A water guide plate is fixedly installed inside the cooling chamber. A mounting plate is fixedly installed at the top of the cooling chamber. A fan is fixedly installed inside the mounting plate.

[0005] Preferably, the outlet pipe is communicated with the cooling chamber, and the inlet pipe is communicated with the liquid cooling pipe. Here, by setting the outlet pipe, the coolant inside the liquid cooling pipe can be driven to flow upward from the bottom under the action of the water pump. The coolant after absorbing heat will flow out through the outlet pipe under the action of pressure and enter the inside of the cooling chamber for rapid cooling under the guiding action of the outlet pipe.

[0006] Preferably, the cooling bin is communicated with the water tank, and the water pumping end of the water pump is communicated with the water tank. Here, by providing the cooling bin, after the cooling liquid is quickly cooled in the cooling bin, under the action of gravity, the cooled cooling liquid can flow back into the water tank again, thus completing the circulation of the cooling liquid.

[0007] Preferably, the shape of the water guide plate is spiral. Here, by providing a spiral water guide plate, when the cooling liquid enters the cooling bin through the water outlet pipe, the flow rate of the cooling liquid can be delayed under the action of the water guide plate, so as to cooperate with the fan to achieve a higher cooling effect.

[0008] Preferably, a positioning groove is formed inside the mounting plate, a positioning rod is inserted inside the positioning groove, a convex plate is fixedly installed at the bottom end of the dust filter plate, a fixing plate is fixedly installed on the side surface of the convex plate, a plug pin is inserted inside the fixing plate, a pull plate is fixedly installed at one end of the plug pin, a tension spring is sleeved on the surface of the plug pin, and a slot is formed on the side surface of the mounting plate. Here, by providing the positioning groove, positioning rod, convex plate, fixing plate, plug pin, pull plate, tension spring, and slot, the effect of quickly disassembling and cleaning the dust filter plate can be achieved, and the quick disassembly and assembly can improve the maintenance efficiency of the dust filter plate.

[0009] Preferably, the positioning rod is fixedly installed at the bottom end of the dust filter plate. Here, by providing the positioning rod, a better guiding and positioning effect can be achieved during the installation process of the dust filter plate in cooperation with the positioning groove.

[0010] Preferably, one end of the tension spring is fixedly installed on the side surface of the fixing plate, and the other end of the tension spring is fixedly installed on the side surface of the pull plate. Here, by providing the tension spring, the plug pin can be driven to be inserted into the inside of the slot, and thus the limit fixation of the dust filter plate can be achieved.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0012] 1. In the present utility model, by providing the water tank, water pump, water inlet pipe, water outlet pipe, cooling bin, water guide plate, mounting plate, fan, and liquid cooling pipeline, the cooling liquid can be driven to circulate in the liquid cooling pipeline during the working process, so as to ensure that the battery pack can maintain an appropriate temperature range under various working conditions, to ensure the performance, service life, and safety of the battery pack, and an air cooling effect can be provided for the cooling liquid after absorbing heat, preventing the cooling liquid from overheating after long-term work, thereby reducing the load of the cooling system and improving its efficiency and reliability.

[0013] 2. In the present utility model, by providing the positioning groove, positioning rod, convex plate, fixing plate, plug pin, pull plate, tension spring, and slot, the disassembly and assembly work of the dust filter plate can be quickly completed, so that the dust and impurities intercepted by the dust filter plate can be quickly cleaned, to ensure the air inlet efficiency of the cooling bin and the cooling effect on the cooling liquid. Brief Description of the Drawings

[0014] Figure 1 FIG. is a schematic diagram of a battery pack thermal management device with a liquid cooling channel proposed by the present utility model;

[0015] Figure 2 FIG. is a partial structural cross-sectional view of a battery pack thermal management device with a liquid cooling channel proposed by the present utility model;

[0016] Figure 3 FIG. is a battery pack thermal management device with a liquid cooling channel proposed by the present utility model Figure 2 Enlarged view of area A in;

[0017] Figure 4 FIG. is a battery pack thermal management device with a liquid cooling channel proposed by the present utility model Figure 2 Enlarged view of area B in;

[0018] Figure 5 FIG. is an exploded view of a battery pack thermal management device with a liquid cooling channel proposed by the present utility model.

[0019] Legend Explanation:

[0020] 1. Housing; 2. Water tank; 3. Water pump; 4. Inlet pipe; 5. Outlet pipe; 6. Cooling chamber; 7. Water guide plate; 8. Mounting plate; 9. Fan; 10. Liquid cooling pipe; 11. Positioning groove; 12. Positioning rod; 13. Dust filter plate; 14. Convex plate; 15. Fixed plate; 16. Plug; 17. Pulling plate; 18. Pulling spring; 19. Slot. Detailed Embodiment

[0021] In order to more clearly understand the above objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth to facilitate a thorough understanding of the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0023] Embodiment 1

[0024] Please refer to Figures 1-5, the present utility model provides a technical solution: a battery pack thermal management device with a liquid cooling channel, including a housing 1 and a dust filter plate 13. A water tank 2 is fixedly installed on the side of the housing 1, and a water pump 3 is fixedly installed on the side of the housing 1. The water suction end of the water pump 3 is communicated with the water tank 2, and the water delivery end of the water pump 3 is communicated with a water inlet pipe 4. The water inlet pipe 4 is communicated with a liquid cooling pipe 10. The liquid cooling pipe 10 is arranged inside the housing 1. During the flow of the coolant inside the liquid cooling pipe 10, heat generated during the operation of the battery pack will be absorbed under the action of heat conduction, thereby completing heat exchange to ensure that the battery pack is maintained within an appropriate temperature range. The surface of the liquid cooling pipe 10 is communicated with a water outlet pipe 5, and the water outlet pipe 5 is communicated with a cooling chamber 6. A cooling chamber 6 is fixedly installed on the side of the housing 1, and the cooling chamber 6 is communicated with the water tank 2. A water guide plate 7 is fixedly installed inside the cooling chamber 6, and the shape of the water guide plate 7 is spiral. When the coolant enters the cooling chamber 6 through the water outlet pipe 5, the flow rate of the coolant can be delayed under the action of the spiral water guide plate 7. During the process of the coolant spirally falling along the water guide plate 7, a higher cooling effect can be achieved in cooperation with a fan 9, so that heat carried in the coolant can be heat-exchanged under the action of air cooling. An installation plate 8 is fixedly installed at the top of the cooling chamber 6, and a fan 9 is fixedly installed inside the installation plate 8.

[0025] Embodiment Two

[0026] Please refer to Figure 4 , a positioning groove 11 is opened inside the installation plate 8, and a positioning rod 12 is inserted inside the positioning groove 11. The positioning rod 12 is fixedly installed at the bottom end of the dust filter plate 13. During the installation of the dust filter plate 13, the positioning rod 12 can be aligned with the positioning groove 11, which can provide stability during the installation of the dust filter plate 13. A convex plate 14 is fixedly installed at the bottom end of the dust filter plate 13, and a fixing plate 15 is fixedly installed on the side of the convex plate 14. A plug pin 16 is inserted inside the fixing plate 15. One end of the plug pin 16 is fixedly installed with a pull plate 17. A tension spring 18 is sleeved on the surface of the plug pin 16. One end of the tension spring 18 is fixedly installed on the side of the fixing plate 15, and the other end of the tension spring 18 is fixedly installed on the side of the pull plate 17. Under the action of the tension spring 18, the plug pin 16 can be driven to be inserted into the inside of the slot 19, thereby completing the limitation of the dust filter plate 13. A slot 19 is opened on the side of the installation plate 8.

[0027] Working principle: When the battery pack is working, the water pump 3 is started first. At this time, the water pump 3 injects the coolant inside the water tank 2 into the inside of the liquid cooling pipe 10 through the water inlet pipe 4. Then, under the action of force, the coolant at this time will flow upward along the liquid cooling pipe 10 from bottom to top. During this process, the coolant will absorb the heat inside the battery pack under the action of heat conduction. Then, under the action of the water pump 3, the coolant will flow out through the water outlet pipe 5 and enter the inside of the cooling chamber 6. Then, the coolant will flow in a spiral shape under the action of the water guide plate 7. During this process, the fan 9 will accelerate the air flow rate on the surface of the coolant, so as to accelerate the cooling speed of the coolant. During the operation of the fan 9, the dust filter plate 13 will intercept the dust and impurities in the outside air. Then, the cooled coolant will flow to the bottom of the cooling chamber 6 under the action of the water guide plate 7, and then flow back into the inside of the water tank 2 under the action of gravity, thus realizing the circulation of the coolant. When there are more dust and impurities accumulated on the surface of the dust filter plate 13, it will affect the air intake efficiency of the cooling chamber 6. At this time, first pull the pull plate 17 outward and make the bolt 16 come out of the inside of the slot 19. Then, pull the dust filter plate 13 upward to drive the positioning rod 12 to slide out along the positioning groove 11. Then, the dust filter plate 13 can be cleaned. When installing, first align the positioning rod 12 with the positioning groove 11 and pull the pull plate 17. Then, move the dust filter plate 13 downward. Under the action of the tension spring 18, it will drive the bolt 16 to enter the inside of the slot 19, thus completing the installation of the dust filter plate 13.

[0028] The above is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A battery pack thermal management device with a liquid cooling channel, comprising a housing (1) and a dust filter plate (13), characterized in that: A water tank (2) is fixedly mounted on the side of the shell (1), a water pump (3) is fixedly mounted on the side of the shell (1), a water delivery end of the water pump (3) is connected to a water inlet pipe (4), a liquid cooling pipe (10) is arranged on the inner side of the shell (1), a surface of the liquid cooling pipe (10) is connected to a water outlet pipe (5), a cooling bin (6) is fixedly mounted on the side of the shell (1), a water guide plate (7) is fixedly mounted on the inner side of the cooling bin (6), a mounting plate (8) is fixedly mounted on the top of the cooling bin (6), and a fan (9) is fixedly mounted on the inner side of the mounting plate (8).

2. The battery pack thermal management device with a liquid cooling channel according to claim 1, characterized in that: The water outlet pipe (5) is connected to the cooling bin (6), and the water inlet pipe (4) is connected to the liquid cooling pipeline (10).

3. The battery pack thermal management device with a liquid cooling channel according to claim 1, characterized in that: The cooling bin (6) is connected to the water tank (2), and the water pumping end of the water pump (3) is connected to the water tank (2).

4. The battery pack thermal management device with a liquid cooling channel according to claim 1, characterized in that: The water guide plate (7) is in a spiral shape.

5. The battery pack thermal management device with a liquid cooling channel according to claim 1, characterized in that: A positioning groove (11) is provided on the inner side of the mounting plate (8), a positioning rod (12) is inserted into the inner side of the positioning groove (11), a convex plate (14) is fixedly installed on the bottom end of the dust filter plate (13), a fixing plate (15) is fixedly installed on the side of the convex plate (14), a latch (16) is inserted on the inner side of the fixing plate (15), a pull plate (17) is fixedly installed on one end of the latch (16), a tension spring (18) is sleeved on the surface of the latch (16), and a slot (19) is provided on the side of the mounting plate (8).

6. The battery pack thermal management device with a liquid cooling channel according to claim 5, characterized in that: The positioning rod (12) is fixedly installed at the bottom end of the dust filter plate (13).

7. The battery pack thermal management device with a liquid cooling channel according to claim 5, characterized in that: One end of the tension spring (18) is fixedly installed on the side of the fixing plate (15), and the other end of the tension spring (18) is fixedly installed on the side of the pulling plate (17).

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