Battery module with heat dissipation structure

Abstract

The utility model discloses a battery module with heat dissipation structure, including module box, install the limit installation board in the module box, the limit installation board is not less than two, the limit installation board between two be equipped with the electric core groove, the electric core groove opposite two side walls on symmetrical installation have the heat conduction plate, the limit installation board middle part is provided with the breathable mesh plate. Advantageous effects lie in: the utility model discloses the design of limit installation board, can realize the installation limit of electric core groove to electric core, when installing electric core, cooperate limit installation board one week silica gel pressure strip and the design of polyurethane bubble cotton, can have the support of electric core to two, and both have good resilience, when the slight expansion of electric core appears, can effectively buffer electric core, avoided the change of the structure frame in the module box to the expansion, cooperate the design of flexible heat conduction silica gel, can effectively guarantee the normal heat dissipation of limit installation board and the contact surface of electric core.

Description

Technical Field

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

[0002] With the development of new energy technologies, battery modules are increasingly being used in distributed energy systems, emergency power supply and other fields.

[0003] Existing battery modules with heat dissipation structures supply power to devices or store power in the battery module via connectors to achieve the charging and discharging process of the battery cells. Although the above method can realize the release and storage of power from the battery module to the computer, when installing each battery in the motor module, in order to ensure stable and continuous operation, the battery cells need to be limited and fixed. When the battery is working for a long time, the battery cells are prone to expansion. The fixed limiting structure of the device can easily affect the structural frame of the battery module when the battery cells expand slightly, thus resulting in a shorter service life of the battery module. Utility Model Content

[0004] (a) Technical problems to be solved The technical problem to be solved by this utility model is to provide a battery module with a heat dissipation structure that allows the battery cell to expand slightly, in light of the current state of the technology.

[0005] (II) Technical Solution This utility model is achieved through the following technical solution: This utility model proposes a battery module with a heat dissipation structure, including a module box, in which limit mounting plates are installed. There are at least two limit mounting plates, and a cell slot is formed between the two limit mounting plates. Heat-conducting plates are symmetrically installed on the opposite side walls of the cell slot. A ventilated mesh plate is provided in the middle of the limit mounting plate. Flexible thermally conductive silicone is distributed around the inner side wall of the limit mounting plate. Polyurethane foam is installed on the outside of the flexible thermally conductive silicone. A silicone pressure strip is provided on the outside of the polyurethane foam. Heat dissipation holes are formed around the ventilated mesh plate in the limit mounting plate. A cover plate is connected to the top of the module box through an insert plate. A through groove is formed in the middle of the top of the cover plate. A heat dissipation fan is installed at the bottom of the through groove. Cover glass is connected to the four corners of the top of the cover plate through support rods.

[0006] Furthermore, a reset switch is installed on one side wall of the module box, a waterproof socket is provided on one side of the reset switch, an explosion-proof valve is installed on the other side of the reset switch, an air switch protection box is provided at one end of one side wall of the module box, a transparent protective cover is provided on one side wall of the air switch protection box, and a connection output port is installed on the other side wall of the module box.

[0007] Furthermore, the reset switch is connected to the module box slot, and the waterproof socket and the explosion-proof valve are both plugged into the module box.

[0008] Furthermore, the air switch protection box is connected to the module box via a slot, the transparent protective cover is connected to the air switch protection box via a hinge, and the connection output port is plugged into the module box.

[0009] Furthermore, the limiting mounting plate is screwed to the module box, the ventilated mesh plate is connected to the limiting mounting plate slot, and the heat-conducting plate is connected to the module box slot.

[0010] Furthermore, the flexible thermally conductive silicone is bonded to both the limiting mounting plate and the polyurethane foam, and the silicone strip is bonded to the polyurethane foam.

[0011] Furthermore, the cover plate is screwed to the module box, the cooling fan is connected to the through slot, and the support rod is bolted to both the cover plate and the cover glass.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model has the following advantages: The design of the limiting mounting plate enables the installation of the battery cell in the cell slot. During installation, the silicone pressure strip around the limiting mounting plate and the polyurethane foam design effectively support the battery cell. Both have good resilience, effectively buffering the battery cell when it expands slightly, preventing changes to the internal structural frame of the module box. Combined with the design of flexible thermally conductive silicone, it effectively ensures normal heat dissipation at the contact surface between the limiting mounting plate and the battery cell. Attached Figure Description

[0013] Figure 1 This is a split view of the module box in a battery module with a heat dissipation structure as described in this utility model; Figure 2 This is a schematic diagram of the structure of a battery module with a heat dissipation structure according to the present invention; Figure 3 This is a schematic diagram of the limiting mounting plate in a battery module with a heat dissipation structure as described in this utility model.

[0014] The annotations in the attached figures are explained as follows: 1. Cover glass; 2. Support rod; 3. Cover plate; 4. Insert plate; 5. Through slot; 6. Cooling fan; 7. Reset switch; 8. Waterproof socket; 9. Explosion-proof valve; 10. Transparent protective cover; 11. Heat-conducting plate; 12. Connection output port; 13. Air switch protection box; 14. Silicone pressure strip; 15. Polyurethane foam; 16. Flexible thermally conductive silicone; 17. Breathable mesh plate; 18. Limiting mounting plate; 19. Heat dissipation holes; 20. Module box; 21. Battery cell slot. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] like Figures 1-3 As shown, a battery module with a heat dissipation structure in this embodiment includes a module box 20. At least two limiting mounting plates 18 are installed inside the module box 20. A cell slot 21 is formed between the two limiting mounting plates 18. Heat-conducting plates 11 are symmetrically installed on opposite side walls of the cell slot 21. A ventilated mesh plate 17 is provided in the middle of the limiting mounting plate 18. Flexible thermally conductive silicone 16 is distributed around the inner side wall of the limiting mounting plate 18. Polyurethane foam 15 is installed on the outer side of the flexible thermally conductive silicone 16. A silicone pressure strip 14 is provided on the outer side of the polyurethane foam 15. Heat dissipation holes 19 are formed around the ventilated mesh plate 17 inside the limiting mounting plate 18. A cover plate 3 is connected to the top of the module box 20 via an insert plate 4. A through groove 5 is provided at the top center of the cover plate 3. A cooling fan 6 is installed at the bottom of the through groove 5. The cover glass 1 is connected to the top four corners of the cover plate 3 by support rods 2. The design of the limiting mounting plate 18 can limit the installation of the battery cell in the battery cell slot 21. When installing the battery cell, the design of the silicone pressure strip 14 around the limiting mounting plate 18 and the polyurethane foam 15 can effectively support the battery cell. Both have good resilience performance. When the battery cell expands slightly, it can effectively buffer the battery cell and avoid the expansion from changing the internal structural frame of the module box 20. The design of the flexible thermal conductive silicone 16 can effectively ensure the normal heat dissipation of the contact surface between the limiting mounting plate 18 and the battery cell.

[0017] like Figures 1-3 As shown, in this embodiment, a reset switch 7 is installed on one side wall of the module box 20, a waterproof socket 8 is provided on one side of the reset switch 7, an explosion-proof valve 9 is installed on the other side of the reset switch 7, an air switch protection box 13 is provided at one end of one side wall of the module box 20, a transparent protective cover 10 is provided on one side wall of the air switch protection box 13, and a connection output port 12 is installed on the other side wall of the module box 20.

[0018] like Figures 1-3As shown, in this embodiment, the reset switch 7 is connected to the module box 20 via a slot, and the waterproof socket 8 and the explosion-proof valve 9 are both plugged into the module box 20. The reset switch 7 is designed to restore the state of the battery cell or battery pack to a certain preset or initial working state. The explosion-proof valve 9 is designed to monitor the pressure and temperature inside the battery. When the pressure or temperature exceeds the set value, the explosion-proof valve 9 will break at the groove and release pressure to reduce the pressure inside the battery and prevent an explosion accident.

[0019] like Figures 1-3 As shown, in this embodiment, the air switch protection box 13 is connected to the module box 20 by a slot, the transparent protective cover 10 is connected to the air switch protection box 13 by a hinge, and the connection output port 12 is plugged into the module box 20. The air switch protection box 13 realizes the protective installation of the air switch. When a short circuit or overload occurs in the battery module circuit, the air switch can automatically trip, cut off the power supply, and protect the circuit and electrical equipment from damage.

[0020] like Figures 1-3 As shown, in this embodiment, the limiting mounting plate 18 is screwed to the module box 20, the ventilated mesh plate 17 is connected to the limiting mounting plate 18 through a slot, and the heat-conducting plate 11 is connected to the module box 20 through a slot. The ventilated mesh plate 17, in conjunction with the design of the heat dissipation holes 19, facilitates the heat dissipation between the battery cells.

[0021] like Figures 1-3 As shown, in this embodiment, the flexible thermally conductive silicone 16 is bonded to the limiting mounting plate 18 and the polyurethane foam 15, and the silicone pressure strip 14 is bonded to the polyurethane foam 15. The design of the polyurethane foam 15 and the silicone pressure strip 14 both have good flexible buffering ability and excellent rebound ability, which can buffer and support the expansion of the battery cell, effectively avoiding the situation where the battery cell damages the structural frame of the battery module.

[0022] like Figures 1-3 As shown, in this embodiment, the cover plate 3 is screwed to the module box 20, the cooling fan 6 is slotted to the through groove 5, and the support rod 2 is bolted to the cover plate 3 and the cover glass 1. The cover plate 3 protects the top of the module box 20, and the design of the cover glass 1 protects the top of the cover plate 3 and facilitates the ventilation of the cooling fan 6, effectively preventing impurities from directly entering the through groove 5.

[0023] The specific implementation process of this embodiment is as follows: When using the device, the battery cells need to be installed and connected sequentially in the battery cell slot 21 to achieve the limiting installation and fixing of each battery cell. When the battery cell is working, the design of the ventilated mesh plate 17, together with the heat dissipation holes 19 and the heat conduction plate 11, can effectively prevent the heat generated by the battery cell during operation from accumulating between the battery cells. With the design of the cooling fan 6, the efficiency of heat dissipation from the device is effectively guaranteed. When the battery cell is working for a long time, it is prone to slight expansion. The design of the silicone pressure strip 14 and the polyurethane foam 15 allows the battery cell to squeeze the two when the battery cell expands. The two have good buffering capacity and effectively ensure the limiting installation. The mounting plate 18 effectively secures the battery cells and prevents their expansion from damaging the structural frame inside the module box 20. Simultaneously, the flexible thermally conductive silicone 16 adheres to the silicone strip 14 and polyurethane foam 15, effectively dissipating heat and preventing the silicone strip 14 and polyurethane foam 15 from hindering normal heat dissipation of the battery cells. The explosion-proof valve 9 monitors the internal pressure and temperature of the battery. When the pressure or temperature exceeds a set value, the explosion-proof valve 9 will rupture at the groove and release pressure to reduce the internal pressure of the battery and prevent an explosion. The reset switch 7 allows for easy restoration of the battery cell or battery pack to a preset or initial operating state.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery module with a heat dissipation structure, characterized in that: The system includes a module box (20), inside which are installed limiting mounting plates (18), with at least two limiting mounting plates (18). A cell slot (21) is formed between the two limiting mounting plates (18). Heat-conducting plates (11) are symmetrically installed on the opposite side walls of the cell slot (21). A breathable mesh plate (17) is provided in the middle of the limiting mounting plate (18). Flexible thermally conductive silicone (16) is arranged around the inner side wall of the limiting mounting plate (18). A polyurethane foam (15) is installed on the outside, and a silicone strip (14) is provided on the outside of the polyurethane foam (15). A heat dissipation hole (19) is opened around the breathable mesh plate (17) in the limiting mounting plate (18). A cover plate (3) is connected to the top of the module box (20) through a plug plate (4). A through groove (5) is opened in the middle of the top of the cover plate (3). A heat dissipation fan (6) is installed at the bottom of the through groove (5). A cover glass (1) is connected to the four corners of the top of the cover plate (3) through a support rod (2).

2. A battery module with a heat dissipation structure according to claim 1, characterized in that: A reset switch (7) is installed on one side wall of the module box (20). A waterproof socket (8) is provided on one side of the reset switch (7). An explosion-proof valve (9) is installed on the other side of the reset switch (7). An air switch protection box (13) is provided at one end of one side wall of the module box (20). A transparent protective cover (10) is provided on one side wall of the air switch protection box (13). A connection output port (12) is installed on the other side wall of the module box (20).

3. A battery module with a heat dissipation structure according to claim 2, characterized in that: The reset switch (7) is connected to the module box (20) slot, and the waterproof socket (8) and the explosion-proof valve (9) are both plugged into the module box (20).

4. A battery module with a heat dissipation structure according to claim 2, characterized in that: The air switch protection box (13) is connected to the module box (20) by a slot, the transparent protective cover (10) is connected to the air switch protection box (13) by a hinge, and the connection output port (12) is plugged into the module box (20).

5. A battery module with a heat dissipation structure according to claim 1, characterized in that: The limiting mounting plate (18) is screwed to the module box (20), the breathable mesh plate (17) is slotted to the limiting mounting plate (18), and the heat-conducting plate (11) is slotted to the module box (20).

6. A battery module with a heat dissipation structure according to claim 1, characterized in that: The flexible thermally conductive silicone (16) is bonded to the limiting mounting plate (18) and the polyurethane foam (15), and the silicone strip (14) is bonded to the polyurethane foam (15).

7. A battery module with a heat dissipation structure according to claim 1, characterized in that: The cover plate (3) is screwed to the module box (20), the heat dissipation fan (6) is slotted to the through groove (5), and the support rod (2) is bolted to the cover plate (3) and the cover glass (1).

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