Battery box heat dissipation module

Abstract

The utility model discloses a battery box heat dissipation module, which relates to the technical field of battery boxes, and comprises a box body, a liquid cooling plate is fixedly connected to the bottom end of the inner side of the box body, a plurality of uniformly distributed partition plates are fixedly connected to the upper side of the liquid cooling plate in the box body, and a battery fixing shell is fixedly connected between every two adjacent partition plates. The liquid cooling plate, the phase change material layer and the gas flowing groove form a triple heat dissipation structure, when the battery module works to generate heat, the heat is transferred to the liquid cooling plate and the phase change material layer, and the heat transferred to the liquid cooling plate is taken away through the circulating flow of cooling liquid, so that the heat dissipation efficiency is improved, and the heat dissipation effect is improved. The heat transferred to the phase-change material layer can be absorbed by the phase-change material layer, the induced draft fan and the exhaust fan act together to accelerate the discharge of hot air, and the heat dissipation efficiency of the battery box is improved through the synergistic effect of the triple heat dissipation structures.

Description

Technical Field

[0001] This utility model relates to the field of battery box technology, specifically to a battery box heat dissipation module. Background Technology

[0002] In the field of new energy vehicles and energy storage equipment, the battery box, as the supporting structure of the battery pack, needs to provide a stable working environment for the battery modules. The battery generates a lot of heat during charging and discharging. If it cannot be dissipated in a timely and effective manner, it may lead to a decline in battery performance, a shortened lifespan, or even a safety accident.

[0003] Existing battery pack heat dissipation modules typically employ a single heat dissipation method, such as simple air cooling or liquid cooling, which has limited heat dissipation efficiency and is difficult to meet the heat dissipation requirements of high energy density battery packs. Therefore, a battery pack heat dissipation module is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the aforementioned technical problems, a battery box heat dissipation module is provided. This technical solution solves the problem mentioned in the background art that existing battery box heat dissipation modules typically employ a single heat dissipation method, such as simple air cooling or liquid cooling, which has limited heat dissipation efficiency and is difficult to meet the heat dissipation requirements of high energy density battery packs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A battery box heat dissipation module includes a box body. A liquid cooling plate is fixedly connected to the bottom inner side of the box body. Several evenly distributed partitions are fixedly connected to the upper side of the liquid cooling plate inside the box body. A battery mounting shell is fixedly connected between two adjacent partitions. A receiving groove is opened at the upper end of the battery mounting shell. Several evenly distributed heat dissipation holes are opened through the outer surface of the battery mounting shell. A battery module is snapped into the receiving groove. A phase change material layer is fixedly connected between the partitions and the battery mounting shell. Gas flow grooves are opened at both the front and rear ends of the partitions. Filter mounting grooves are opened at both the left and right ends of the box body. Several evenly distributed fan mounting grooves are opened through the ends of two filter mounting grooves that are close to each other. A deflector fan is fixedly connected inside the fan mounting grooves on the left side, and an exhaust fan is fixedly connected inside the fan mounting grooves on the right side.

[0007] Preferably, both ends of the liquid cooling plate are connected to threaded interfaces, and the ends of the two threaded interfaces that are far apart from each other pass through the left and right ends of the housing and extend to the left and right sides of the housing, respectively.

[0008] Preferably, the liquid cooling plate has a serpentine condensation circuit inside, and the two ends of the serpentine condensation circuit are respectively connected to one end of two threaded interfaces.

[0009] Preferably, a filter screen is fixedly connected inside the filter screen mounting groove.

[0010] Preferably, the upper end of the box is fixedly connected to a box cover by bolts.

[0011] The advantages of this utility model compared with the prior art are:

[0012] This solution proposes a battery box heat dissipation module, which forms a triple heat dissipation structure through a liquid cooling plate, a phase change material layer, and a gas flow channel. When the battery module generates heat during operation, the heat is transferred to the liquid cooling plate and the phase change material layer. The heat transferred to the liquid cooling plate is carried away by the circulating flow of the coolant, while the heat transferred to the phase change material layer is absorbed by the phase change material layer. When the exhaust fan on the left is working, it can draw external air into the box. The air flows through the gas flow channel in the box, carrying away the heat from the surface of the battery module. Together with the exhaust fan on the right, it pushes the heated air out of the box, forming air convection and improving the heat dissipation effect. Through the synergistic effect of the triple heat dissipation structure, the heat dissipation efficiency of the battery box is improved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the box in this utility model;

[0015] Figure 3 This is a schematic diagram of the installation of the battery module in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the partition plate of this utility model;

[0017] Figure 5 This is a schematic diagram of the battery fixing shell in this utility model;

[0018] Figure 6 This is a schematic diagram of the connection of the phase change material layer in this utility model.

[0019] The numbers on the map are:

[0020] 1. Housing; 2. Liquid cooling plate; 201. Threaded interface; 3. Partition; 4. Battery mounting shell; 5. Heat dissipation holes; 6. Receiving slot; 7. Battery module; 8. Phase change material layer; 9. Gas flow channel; 10. Filter mounting slot; 11. Fan mounting slot; 12. Exhaust fan; 13. Exhaust fan; 14. Filter screen; 15. Housing cover. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Reference Figures 1-6 As shown, a battery box heat dissipation module includes a box body 1. A liquid cooling plate 2 is fixedly connected to the bottom inner side of the box body 1. Several evenly distributed partitions 3 are fixedly connected to the upper side of the liquid cooling plate 2 inside the box body 1. A battery fixing shell 4 is fixedly connected between two adjacent partitions 3. A receiving groove 6 is opened at the upper end of the battery fixing shell 4. Several evenly distributed heat dissipation holes 5 are opened through the outer surface of the battery fixing shell 4. A battery module 7 is snapped into the receiving groove 6. A phase change material layer 8 is fixedly connected between the partitions 3 and the battery fixing shell 4. Gas flow grooves 9 are opened at both the front and rear ends of the partitions 3. Filter installation grooves 10 are opened at both the left and right ends of the box body 1. Several evenly distributed fan installation grooves 11 are opened through the two filter installation grooves 10 that are close to each other. A fan 13 is fixedly connected inside the several fan installation grooves 11 on the left side. An exhaust fan 12 is fixedly connected inside the several fan installation grooves 11 on the right side.

[0023] Furthermore, the heat dissipation holes 5 are circular through holes, evenly distributed around the battery mounting shell 4, which facilitates the dissipation of heat generated by the battery module 7.

[0024] Furthermore, the phase change material layer 8 has a sheet-like structure and is made of paraffin-based composite phase change material. It can absorb heat and undergo phase change when the battery module 7 heats up, store heat, and release heat when the temperature drops, thus playing a role in regulating the temperature.

[0025] Furthermore, both ends of the liquid cooling plate 2 are connected to threaded interfaces 201. The ends of the two threaded interfaces 201 that are far apart from each other pass through the left and right ends of the housing 1 and extend to the left and right sides of the housing 1 respectively.

[0026] Furthermore, a serpentine condensation circuit is provided inside the liquid cooling plate 2, and the two ends of the serpentine condensation circuit are respectively connected to one end of two threaded interfaces 201.

[0027] Furthermore, the two threaded interfaces 201 are connected to the outlet and inlet of the external coolant circulation system, respectively. The coolant is injected into the serpentine condensation circuit inside the liquid cooling plate 2 through the external coolant circulation system. When the battery module 7 generates heat during operation, the heat generated by the battery module 7 is transferred to the liquid cooling plate 2. The heat is carried away by the circulation of the coolant. The serpentine structure can increase the flow path of the coolant in the liquid cooling plate 2 and improve the heat exchange efficiency.

[0028] Furthermore, the gas flow channel 9 is a rectangular channel structure for air circulation, forming an air convection channel. The exhaust fan 13 is used to draw external air into the box 1, and the exhaust fan 12 is used to exhaust the hot air inside the box 1. Through the combined action of the exhaust fan 13 and the exhaust fan 12, the air flow rate inside the box 1 can be accelerated, thereby accelerating the exhaust of hot air.

[0029] Furthermore, a filter screen 14 is fixedly connected inside the filter screen mounting slot 10. The filter screen 14 has a mesh structure and is used to filter dust and impurities in the air to prevent them from entering the housing 1 and damaging the battery module 7.

[0030] Furthermore, a cover 15 is bolted to the upper end of the housing 1 to close the upper end of the housing 1 and protect the internal battery module 7 and heat dissipation components.

[0031] Working principle: When the battery module 7 generates heat during operation, the heat is transferred to the liquid cooling plate 2 and the phase change material layer 8. The heat transferred to the liquid cooling plate 2 is carried away by the circulation of the coolant, and the heat transferred to the phase change material layer 8 is absorbed by the phase change material layer 8. When the left exhaust fan 13 is working, it can draw external air into the housing 1. The air flows through the gas flow channel 9 in the housing 1, carrying away the heat on the surface of the battery module 7. Together with the right exhaust fan 12, it pushes the heated air out of the housing 1, forming air convection and improving the heat dissipation effect.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A battery box heat dissipation module, characterized in that, The enclosure includes a housing (1), with a liquid cooling plate (2) fixedly connected to the bottom inner side of the housing (1). Several evenly distributed partitions (3) are fixedly connected to the interior of the housing (1) above the liquid cooling plate (2). A battery mounting shell (4) is fixedly connected between adjacent partitions (3). A receiving groove (6) is provided at the upper end of the battery mounting shell (4). Several evenly distributed heat dissipation holes (5) are provided through the outer surface of the battery mounting shell (4). A battery module (7) is snapped into the receiving groove (6). The partitions (3) and the battery... A phase change material layer (8) is fixedly connected between the pool fixed shells (4). Gas flow grooves (9) are opened at both the front and rear ends of the partition (3). Filter screen mounting grooves (10) are opened at both the left and right ends of the box body (1). Several evenly distributed fan mounting grooves (11) are opened through the two filter screen mounting grooves (10) that are close to each other. A fan (13) is fixedly connected inside the several fan mounting grooves (11) on the left side. An exhaust fan (12) is fixedly connected inside the several fan mounting grooves (11) on the right side.

2. The battery box heat dissipation module according to claim 1, characterized in that: The liquid cooling plate (2) has threaded interfaces (201) at both ends. The ends of the two threaded interfaces (201) that are far apart from each other pass through the left and right ends of the box (1) and extend to the left and right sides of the box (1) respectively.

3. The battery box heat dissipation module according to claim 1, characterized in that: The liquid cooling plate (2) has a serpentine condensation circuit inside, and the two ends of the serpentine condensation circuit are respectively connected to one end of two threaded interfaces (201).

4. A battery box heat dissipation module according to claim 1, characterized in that: A filter screen (14) is fixedly connected inside the filter screen mounting groove (10).

5. A battery box heat dissipation module according to claim 1, characterized in that: The upper end of the box (1) is fixedly connected to the box cover (15) by bolts.

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