Battery module

Abstract

The utility model discloses a battery module, which comprises a plurality of battery cells, the frame accommodates the plurality of battery cells, the frame is provided with a front wall and two side walls, the front wall is provided with two concave parts and a convex part, the front wall is sunken backwards to form the two concave parts, the convex part is formed between the two concave parts, the frame is provided with a plurality of air inlet holes penetrating through the front surfaces and the rear surfaces of the concave parts, and the air inlet holes are communicated with the air inlet holes. The left side and the right side of each concave part are provided with a plurality of flow guide ribs, the air inlet holes are formed between the flow guide ribs, the two side walls are concaved inwards to form a plurality of air outlet holes, and the air inlet holes are communicated with the air outlet holes. The fan is arranged at the front end of the front wall of the frame; and the plurality of battery cells, the frame and the fan are arranged in the shell. Therefore, the heat dissipation effect of the battery module can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery module, especially a battery module with improved heat dissipation effect. BACKGROUND

[0002] In a high-energy lithium battery core module system, the battery core is easily affected by external factors such as heat, impact, and collision to become unstable and explode. Since the battery cores are closely stacked, when one battery core experiences thermal runaway, the entire battery core module may burn out, and the heat generated may trigger an uncontrollable chain reaction, causing the entire module battery core to burn out and even cause an explosion.

[0003] Patent No. 207719366 discloses a battery module heat dissipation structure, which includes a battery module, a bottom plate arranged at the bottom end of the battery module, an outer cover arranged on the outer side of the battery module, a pair of partition plates fixed to the two ends of the outer cover, and a fan; it also includes a pair of fixed end plates arranged on the side of the pair of partition plates close to the bottom plate and away from the battery module; the fan is fixed to the side of the partition plate away from the battery module; the fan includes a lower frame, and each partition plate is provided with a fixed opening extending through the partition plate and cooperating with the lower frame of the fan; the fixed opening includes a bottom edge, a top edge opposite to the bottom edge, and two side edges connecting the bottom edge and the top edge; the bottom edge and the two side edges are each provided with a pair of hooks extending perpendicularly to the partition plate away from the battery module; the top edge extends a pair of buckles, one end of the buckle is flush with the top edge and is provided with a flange extending perpendicularly to the buckle away from the battery module; the lower frame of the fan is embedded in the hooks of the bottom edge and the two side edges and abuts against the flange of the buckle.

[0004] However, the above-mentioned battery module generates heat during charging and discharging, and the heat dissipation equipment of the battery module is not sufficient to effectively cool the battery, which may cause the temperature to rise, resulting in reduced battery performance, shortened battery life, and even safety problems.

[0005] Therefore, it is necessary to provide a battery module with improved heat dissipation effect. SUMMARY

[0006] The utility model aims at the defects and deficiencies of the prior art to provide a battery module.

[0007] To achieve the above object, the utility model discloses a battery module, comprising: several battery cores;A frame contains several battery cores, the frame is equipped with a front wall and two side walls, the front wall is equipped with two recesses and a convex part, the front wall is retracted to form two recesses, the middle of two recesses forms the convex part, the frame is equipped with several air inlet holes through the recess, the left and right sides of two recesses are equipped with several guide ribs, several air inlet holes are arranged between several guide ribs, two side walls are retracted to form several air outlet holes, several air inlet holes are communicated with several air outlet holes;A fan is arranged at the front end of the front wall of the frame, and a shell is arranged in the shell.

[0008] As a further improvement, the connection between the two recesses and the convex part is gradually recessed from inside to outside and backward to form two inner arcs, the two inner arcs are formed on the left and right sides of the convex part, the two inner arcs are connected with the convex part, and the two inner arcs extend forward to form several guide ribs.

[0009] As a further improvement, the connection between the two recesses and the front wall is gradually recessed from outside to inside and backward to form two outer arcs, the extension direction of the inner arc and the outer arc is opposite, and one of the outer arcs extends forward to form several guide ribs.

[0010] As a further improvement, each recess is provided with a plane, the plane is arranged between the inner arc and the outer arc, the inner arc and the outer arc are arranged on the left and right sides of the plane respectively, and the air inlet holes extend through the plane in the front and rear directions.

[0011] As a further improvement, the front side aperture of the air inlet hole is larger than the rear side aperture of the air inlet hole.

[0012] As a further improvement, each guide rib comprises an arc-shaped part and an inclined part, the top wall of the inner arc of the recess extends forward to form several arc-shaped parts, the arc-shaped parts are close to the convex part, the bottom wall of the inner arc of the recess extends forward to form several inclined parts, the inclined parts are close to the plane of the recess, and the arc-shaped part and the inclined part are connected.

[0013] As a further improvement, an arc-shaped groove is formed between each two guide ribs and the inner arc, which is gradually recessed from outside to inside and backward.

[0014] As a further improvement, the other outer arc extends forward to form several locking parts, and the locking parts extend out of the front wall.

[0015] As a further improvement, there is further provided a circuit board, a assembling space is formed between the housing and one side of the frame, the circuit board is arranged in the assembling space, one of the air outlet holes is communicated with the assembling space, the circuit board is arranged on the two side walls of the frame opposite to the lock catch.

[0016] As a further improvement, the utility model discloses a battery module, include: a housing, a fan is arranged in the housing, a frame is arranged in the housing, the frame is equipped with a front wall and two side walls, the front wall and the fan correspond with each other, the front wall is equipped with two recesses and a convex part, the convex part is formed in the middle of two recesses, two recesses are equipped with a plurality of air inlet holes, and the opposite sides of the two recesses are provided with a plurality of guide ribs, a plurality of air inlet holes are arranged between a plurality of guide ribs, and two side walls form at least one air outlet hole, the air outlet hole is arranged behind a plurality of air inlet holes and communicated with a plurality of air inlet holes, an assembling space is formed between the housing and at least one side wall, and the assembling space is communicated with the air outlet hole, a plurality of battery cores are arranged in the frame, and a circuit board is arranged in the assembling space.

[0017] As described above, the utility model discloses a battery module through the innovative structural design, the left and right sides of the front wall are concave to form two recesses. Two recesses are used for concentrating wind volume. The convex part is formed in the middle of two recesses. Two recesses are formed on the left and right sides of the convex part. The convex part is used for strengthening the structural strength of the frame. Each recess is equipped with the inner arc part, the outer arc part and the plane. Two inner arc parts extend forward and form a plurality of guide ribs. One of the outer arc parts extends forward and forms a plurality of guide ribs. A plurality of guide ribs are used for concentrating wind volume and guiding flow. The frame is equipped with a plurality of air inlet holes through the plane of the recess. A plurality of air inlet holes are arranged between a plurality of guide ribs. The hole diameter of the front surface of the air inlet hole is greater than the hole diameter of the rear surface of the air inlet hole, and through the hole diameter from big to small, the air inlet hole can concentrate wind volume, and the air inlet hole can enhance the exhaust effect and enhance the heat dissipation effect. The air outlet hole is the trapezoidal structure of front width and rear narrowness, enhances the exhaust effect and enhances the heat dissipation effect. The air outlet hole is communicated with the assembling space, and the air from the air inlet hole enters and is guided to the assembling space through the air outlet hole, so that the circuit board in the assembling space has good heat dissipation effect. Therefore, the utility model discloses a battery module can improve the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective drawing of the utility model discloses a battery module.

[0019] Figure 2 It is the partial perspective drawing of the utility model discloses a battery module.

[0020] Figure 3 is a partial perspective view of the battery module of the present application.

[0021] Figure 4 is a schematic view of the battery module of the present application.

[0022] Figure 5 is a sectional view of the battery module of the present application along Figure 4 the V-V line.

[0023] Figure 6 is a schematic view of the battery module of the present application.

[0024] Figure 7 is a sectional view of the battery module of the present application along Figure 6 the VII-VII line.

[0025] Figure 8 is a partial enlarged view of the X1 of the battery module of the present application along Figure 3 .

[0026] The reference numerals in the drawings are explained as follows.

[0027] Battery module 100 Battery cell 1

[0028] Frame 2 Front wall 20

[0029] Top wall 21 Bottom wall 22

[0030] Side wall 23 Concave portion 24

[0031] Inner arc portion 241 Outer arc portion 242

[0032] Plane 243 Latch portion 244

[0033] Convex portion 25 Air inlet hole 26

[0034] Air outlet hole 27 Flow guide rib 28

[0035] Arc-shaped portion 281 Inclined portion 282

[0036] Arc-shaped groove 29 Fan 3

[0037] Housing 4 Circuit board 5

[0038] Assembly space 6. DETAILED DESCRIPTION

[0039] To explain the technical content, structural features, achieved purposes and effects of the battery module 100 of the present application in detail, the following embodiments are exemplified and described in detail in combination with the drawings.

[0040] Please refer to Figures 1 to 3 ,Figure 6 With Figure 7 The utility model battery module 100 includes a plurality of battery core 1, a frame 2, a fan 3, a shell 4 and a circuit board 5. A plurality of battery core 1 is arranged in the frame 2. The fan 3 is arranged at the front end of the frame 2. A plurality of battery core 1, the frame 2 and the fan 3 and the circuit board 5 are arranged in the shell 4. The shell 4 one side and the frame 2 one side form an assembly space 6. The circuit board 5 is arranged in the assembly space 6. The shell 4 other side and the frame 2 other side are connected.

[0041] Please refer to Figure 3 The frame 2 is provided with a front wall 20, a top wall 21, a bottom wall 22, two side walls 23, two recesses 24, a convex part 25, a plurality of air inlet holes 26, a plurality of air outlet holes 27, a plurality of flow guide ribs 28 and a plurality of arc grooves 29. The front wall 20 is arranged at the front end of the top wall 21 and the front end of the bottom wall 22. Two side walls 23 are arranged on both sides of the top wall 21 and the bottom wall 22 respectively, and are connected between the top wall 21 and the bottom wall 22. The fan 3 is arranged in front of the front wall 20. One of the side walls 23 and the shell 4 form the assembly space 6. Another side wall 23 is connected with the shell 4.

[0042] The left and right sides of the front wall 20 are recessed to form two recesses 24. The two recesses 24 are used to concentrate air volume. The middle of the two recesses 24 forms the convex part 25. The two recesses 24 are formed on the left and right sides of the convex part 25 respectively. The convex part 25 is used to strengthen the structural strength of the frame 2.

[0043] Each recess 24 is provided with an inner arc part 241, an outer arc part 242 and a plane 243. The connection between the two recesses 24 and the convex part 25 is gradually recessed from inside to outside and backward to form two inner arc parts 241. The left and right sides of the convex part 25 are gradually recessed from inside to outside and backward to form two inner arc parts 241. The two inner arc parts 241 are connected with the convex part 25. The connection between the left and right edges of the two recesses 24 and the front wall 20 is gradually recessed from outside to inside and backward to form two outer arc parts 242. The left and right edges of the front wall 20 are gradually recessed from outside to inside and backward to form two outer arc parts 242. The extension direction of the inner arc part 241 and the outer arc part 242 is opposite. The plane 243 is arranged between the inner arc part 241 and the outer arc part 242. The inner arc part 241 and the outer arc part 242 are arranged on the left and right sides of the plane 243 respectively.

[0044] Please refer to Figures 3 to 5The frame 2 is provided with a plurality of air inlet holes 26 penetrating the front and rear surfaces of the plane 243 of the recess 24. In the embodiment, the air inlet holes 26 are in a conical structure. Thus, the air inlet holes 26 can collect more air volume. The diameter of the front surface of the air inlet hole 26 is larger than that of the rear surface of the air inlet hole 26. Through the diameter from large to small, the air inlet hole 26 can concentrate air volume, and the air inlet hole 26 can enhance the exhaust effect and enhance the heat dissipation effect. In specific implementation, it is not limited thereto.

[0045] Please refer to Figures 3 to 7 The two side walls 23 of the frame 2 are inwardly recessed to form a plurality of air outlet holes 27, and the plurality of air inlet holes 26 are communicated with the plurality of air outlet holes 27. The plurality of air outlet holes 27 are used for concentrating air volume and guiding flow. In the embodiment, one of the air outlet holes 27 is communicated with the assembly space 6. In the embodiment, air enters from the air inlet hole 26, and is guided to the assembly space 6 through the air outlet hole 27, so that the circuit board 5 has good heat dissipation effect. The air outlet hole 27 is provided with a front side wall and a rear side wall, and the plurality of air inlet holes 26 penetrate the plane 243 and the front side wall of the air outlet hole 27. In the embodiment, the air outlet hole 27 is in a trapezoidal structure with a wide front and a narrow rear.

[0046] The two inner arc portions 241 of the two recesses 24 extend forward to form a plurality of flow guide ribs 28. One of the outer arc portions 242 of the two recesses 24 extends forward to form a plurality of flow guide ribs 28. The plurality of air inlet holes 26 are arranged between the plurality of flow guide ribs 28. The plurality of flow guide ribs 28 are used for concentrating air volume and guiding flow.

[0047] One of the outer arc portions 242 extends forward to form a plurality of locking portions 244. The plurality of locking portions 244 extend out of the front wall 20 of the frame 2. In the embodiment, the circuit board 5 is arranged opposite to the locking portion 244 on the two side walls 23 of the frame 2. The frame 2 is locked and fixed to the shell 4 through the plurality of locking portions 244.

[0048] Please refer to Figures 3 to 8In the embodiment, each of the guide ribs 28 comprises an arc-shaped portion 281 and an inclined portion 282. The arc-shaped portion 281 is arranged at the front end of the guide rib 28, and the inclined portion 282 is arranged at the rear end of the guide rib 28. The front end of the arc-shaped portion 281 of the inner arc portion 241 is connected to the convex portion 25, the front end of the arc-shaped portion 281 of the outer arc portion 242 is connected to the edge of the front wall 20, the rear end of the arc-shaped portion 281 extends backward to form the inclined portion 282, and the rear end of the inclined portion 282 is connected to the flat surface 243. That is, the top wall of the inner arc portion 241 of the recessed portion 24 extends forward to form a plurality of arc-shaped portions 281. The plurality of arc-shaped portions 281 are close to the convex portion 25. The bottom wall of the inner arc portion 241 of the recessed portion 24 extends forward to form a plurality of inclined portions 282. The plurality of inclined portions 282 are close to the flat surface 243 of the recessed portion 24. The arc-shaped portion 281 is connected to the inclined portion 282. Each of the two guide ribs 28 and the inner arc portion 241 forms the arc-shaped groove 29 which is gradually recessed from outside to inside and backward. The arc-shaped groove 29 is used for concentrating air flow.

[0049] As described above, the battery module 100 of the utility model through the innovative structure design, the left and right sides of the front wall 20 are recessed to form two recessed portions 24. Two recessed portions 24 are used for concentrating air flow. The middle of two recessed portions 24 forms the convex portion 25. Two recessed portions 24 are formed on the left and right sides of the convex portion 25 respectively. The convex portion 25 is used for strengthening the structural strength of the frame 2. Each recessed portion 24 is provided with the inner arc portion 241, the outer arc portion 242 and the flat surface 243. Two inner arc portions 241 extend forward to form a plurality of guide ribs 28. One of the outer arc portions 242 extends forward to form a plurality of guide ribs 28. A plurality of guide ribs 28 are used for concentrating air flow and guiding flow. The frame 2 is provided with a plurality of air inlet holes 26 penetrating the flat surface 243 of the recessed portion 24. A plurality of air inlet holes 26 are arranged between a plurality of guide ribs 28. The front surface of the air inlet hole 26 has a larger aperture than the rear surface of the air inlet hole 26. Through the aperture from large to small, the air inlet hole 26 can concentrate air flow, and the air inlet hole 26 can enhance the exhaust effect and enhance the heat dissipation effect. The air outlet hole 27 is a trapezoidal structure with a wide front and a narrow rear, which enhances the exhaust effect and enhances the heat dissipation effect. The air outlet hole 27 communicates with the assembly space 6. The air enters from the air inlet hole 26 and is guided to the assembly space 6 through the air outlet hole 27. Therefore, the circuit board 5 in the assembly space 6 has good heat dissipation effect. Therefore, the battery module 100 of the utility model can improve the heat dissipation effect.

Claims

1. A battery module, characterized by, The application relates to a battery pack, which comprises a plurality of battery cells, a frame for accommodating the battery cells, a fan and a shell. The connection between the two recesses and the convex part is gradually recessed backward from inside to outside to form two inner arcs, the two inner arcs are formed on the left and right sides of the convex part, and the two inner arcs are connected with the convex part.

2. The battery module of claim 1, wherein: The connection between the two recesses and the front wall is gradually recessed backward from outside to inside to form two outer arcs, the extending directions of the inner arcs and the outer arcs are opposite, and one of the outer arcs extends forward to form a plurality of guide ribs.

3. The battery module of claim 2, wherein: Each recess is provided with a plane, the inner arcs and the outer arcs are arranged on the left and right sides of the plane respectively, and a plurality of air inlet holes penetrate the plane in the front-rear direction.

4. The battery module of claim 3, wherein: The front side aperture of the air inlet hole is larger than the rear side aperture of the air inlet hole.

5. The battery module of claim 4, wherein: Each guide rib comprises an arc-shaped part and an inclined part, the top wall of the inner arc of the recess extends forward to form a plurality of arc-shaped parts, the arc-shaped parts are close to the convex part, the bottom wall of the inner arc of the recess extends forward to form a plurality of inclined parts, the inclined parts are close to the plane of the recess, and the arc-shaped part and the inclined part are connected.

6. The battery module of claim 4, wherein: An arc-shaped groove is formed between each two guide ribs and the inner arc and gradually recessed backward from outside to inside.

7. The battery module of claim 2, wherein: The other outer arc extends forward to form a plurality of locking parts, and the locking parts extend out of the front wall.

8. The battery module of claim 3, wherein: A circuit board is further arranged, an assembly space is formed between the shell and one side of the frame, the circuit board is arranged in the assembly space, one of the air outlet holes is communicated with the assembly space, and the circuit board and the locking parts are arranged on the two side walls of the frame in a mutually opposite mode.

9. The battery module of claim 8, wherein: The application relates to a battery pack, which comprises a plurality of battery cells, a frame for accommodating the battery cells, a fan and a shell.

10. A battery module, characterized by, The application relates to a battery pack, which comprises a plurality of battery cells, a frame for accommodating the battery cells, a fan and a shell. ​ ​ A circuit board is disposed in the assembly space.

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