Battery pack heat dissipation structure

Abstract

The utility model discloses a battery pack heat dissipation structure, which comprises a battery pack, a vehicle frame and a heat dissipation plate, the vehicle frame is provided with an assembly area, the battery pack is arranged in the assembly area, the outer side wall of the vehicle frame is provided with a heat dissipation notch communicated with the assembly area, and the heat dissipation plate is inserted into the heat dissipation notch and matched with the heat dissipation notch in an inserted manner. And the heat dissipation plate is detachably arranged on the battery pack. The heat dissipation plate is in direct contact with the battery pack, and the outside of the heat dissipation plate is communicated with the outside through the heat dissipation notch, so that effective heat dissipation of the battery pack is realized, the problem of thermal runaway of the battery pack is prevented, and the safety, the stability and the service life of the electric vehicle are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery, especially a battery pack heat dissipation structure. BACKGROUND

[0002] With the continuous development and popularization of electric bicycle technology, its performance requirement is also increasingly improved. As the core part of the power system of electric bicycle, the heat dissipation performance of battery PACK (battery pack) directly affects the safety, stability and service life of the whole vehicle. When the internal temperature of the battery pack is too high, heat runaway may occur, and even fire or explosion may be caused. Therefore, it is necessary to improve the heat dissipation of the battery pack. SUMMARY

[0003] The utility model provides a new battery pack heat dissipation structure in view of the defects of poor heat dissipation of battery pack in prior art, which affects the safety of electric vehicle.

[0004] In order to solve the above technical problems, the utility model realizes the following technical scheme:

[0005] A battery pack heat dissipation structure comprises a battery pack, a frame and a heat dissipation plate. An assembly area is formed on the frame. The battery pack is arranged in the assembly area. A heat dissipation gap is formed on the outer wall of the frame and communicates with the assembly area. The heat dissipation plate is inserted into the heat dissipation gap and is connected by insertion. The heat dissipation plate is detachably arranged on the battery pack.

[0006] The heat dissipation plate directly contacts the battery pack, and the outside of the heat dissipation plate communicates with the outside through the heat dissipation gap, so as to realize the effective heat dissipation of the battery pack, prevent the heat runaway problem of the battery pack, and ensure the safety, stability and service life of the electric vehicle.

[0007] As a preferred, the battery pack heat dissipation structure comprises a main plate and a plurality of long plates. The length of the long plate extends along the length direction of the main plate, and the long plates are distributed along the width direction of the main plate.

[0008] The long plate further improves the heat dissipation of the heat dissipation plate, which is convenient to use.

[0009] As preferred, the battery pack heat dissipation structure, the battery pack comprises a battery shell, a battery cell, a heat-conducting silica gel, an upper support and a lower support, the battery cell, the heat-conducting silica gel, the upper support and the lower support are arranged in the battery shell, and the heat dissipation plate is detachably connected with the battery shell; the battery cell and the heat-conducting silica gel are arranged between the upper support and the lower support, one end of the battery cell is attached to the inner surface of the upper support, one end of the heat-conducting silica gel is attached to the inner surface of the lower support, and the other end of the battery cell is attached to the other end of the heat-conducting silica gel; the battery cell, the heat-conducting silica gel, the upper support and the lower support form a battery cell unit, a plurality of battery cell units are arranged, and the battery cell units are arranged from top to bottom, and adjacent upper supports and lower supports are attached to each other.

[0010] The adjacent battery cells are separated by the heat-conducting silica gel, the upper support and the lower support, so that the heat generated by the battery cells is conveniently dissipated outward, and the heat generated by the battery pack is further improved in the rapidity of being dissipated outward by the heat-conducting silica gel.

[0011] As preferred, the battery pack heat dissipation structure, the frame comprises a cross beam, an inclined beam and a vertical beam, two ends of the inclined beam are arranged on the cross beam and the vertical beam respectively, and the assembly area is arranged on the inclined beam; the cross beam and the vertical beam are provided with heat dissipation cavities, and the heat dissipation cavities are communicated with the assembly area.

[0012] The battery pack and the heat dissipation plate are arranged in an inclined manner through the inclined beam, so that the circulation of gas at the heat dissipation plate is facilitated, the battery pack is provided with the remaining heat dissipation channels through the heat dissipation cavities, and the heat dissipation performance of the battery pack is further improved.

[0013] As preferred, the battery pack heat dissipation structure further comprises a fastener, first holes and second holes are arranged on the battery shell and the heat dissipation plate respectively, the first holes and the second holes are opposite to each other, and the fastener is threaded out from the second hole and screwed in the first hole.

[0014] The heat dissipation plate is fixed on the battery shell through the fastener, the first hole and the second hole, and has the advantages of simple structure and firm assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the utility model for hiding the fastener;

[0016] Figure 2 It is an explosion structure schematic view of the utility model for reflecting the heat dissipation gap;

[0017] Figure 3 It is a partial structure schematic view of the utility model heat dissipation plate;

[0018] Figure 4 It is an explosion structure schematic view of the utility model battery pack;

[0019] Figure 5The utility model discloses a sectional view.

[0020] Mark explanation: 1, battery pack, 11, battery shell, 111, first hole, 12, electric core, 13, heat conduction silica gel, 14, upper support, 15, lower support, 16, electric core unit, 2, frame, 20, assembly area, 21, heat dissipation gap, 22, crossbeam, 23, inclined beam, 24, vertical beam, 3, heat dissipation plate, 31, mainboard, 32, long board, 33, second hole, 4, heat dissipation cavity, 5, fastener. Specific implementation

[0021] The utility model discloses a sectional view. Figures 1-5 And specific implementation is further detailed to the utility model, but they are not the limitation to the utility model:

[0022] Example 1

[0023] As Figures 1-5 Shown, a battery pack heat dissipation structure, including battery pack 1, still including frame 2 and heat dissipation plate 3, the frame 2 is set up with assembly area 20, the battery pack 1 is arranged in assembly area 20, the outer lateral wall of frame 2 is set up with the heat dissipation gap 21 of intercommunication with assembly area 20, the heat dissipation plate 3 is inserted into heat dissipation gap 21 and carries out the plug-in cooperation, the heat dissipation plate 3 detachable setting is on battery pack 1.

[0024] As preferred, the heat dissipation plate 3 includes mainboard 31 and long board 32, the number of long board 32 is provided with multiple, the length of long board 32 extends along the length direction of mainboard 31, and long board 32 is spaced apart along the width direction of mainboard 31.

[0025] As preferred, the battery pack 1 includes battery shell 11, electric core 12, heat conduction silica gel 13, upper support 14 and lower support 15, the electric core 12, heat conduction silica gel 13, upper support 14 and lower support 15 are arranged in battery shell 11, and the heat dissipation plate 3 is detachably connected with the battery shell 11;The electric core 12 and heat conduction silica gel 13 are arranged between the upper support 14 and the lower support 15, one end of the electric core 12 is attached to the inner surface of the upper support 14, one end of the heat conduction silica gel 13 is attached to the inner surface of the lower support 15, the other end of the electric core 12 is attached to the other end of the heat conduction silica gel 13, the electric core 12, heat conduction silica gel 13, upper support 14 and lower support 15 constitute electric core unit 16, the electric core unit 16 is provided with multiple and arranged from top to bottom, and adjacent upper support 14 and lower support 15 are attached to each other.

[0026] As preferred, the frame 2 comprises a cross beam 22, a slope beam 23 and a vertical beam 24, two ends of the slope beam 23 are arranged on the cross beam 22 and the vertical beam 24 respectively, the assembling area 20 is arranged on the slope beam 23, and the cross beam 22 and the vertical beam 24 are provided with heat dissipation cavities 4 which are communicated with the assembling area 20.

[0027] As preferred, the fastener 5 is further comprised, the battery shell 11 and the heat dissipation plate 3 are respectively provided with a first hole 111 and a second hole 33, the first hole 111 and the second hole 33 are opposite, and the fastener 5 is screwed in the first hole 111 from the second hole 33.

[0028] Specifically, when the battery pack 1, the frame 2 and the heat dissipation plate 3 need to be assembled, the battery pack 1 is first inserted into the assembling area 20, the battery pack 1 is rotated until the first hole 111 and the heat dissipation gap 21 are opposite, then the heat dissipation plate 3 is inserted into the heat dissipation gap 21 and the main plate 31 is attached to the battery shell 11, and then the fastener 5 is screwed in the first hole 111 from the second hole 33, so that the assembly of the battery pack 1, the frame 2 and the heat dissipation plate 3 is completed.

[0029] When the electric vehicle is riding, the heat dissipation plate 3 and the heat conductive silica gel 13 can dissipate the heat generated by the battery pack 1 in time, and the heat dissipation cavities 4 provide the battery pack 1 with other heat dissipation channels, so as to further improve the heat dissipation of the battery pack 1 and improve the safety of the electric vehicle in use.

[0030] In summary, the above only describes the preferred embodiments of the present application, and any changes and modifications made within the scope of the present application should be included in the scope of the present application.

Claims

1. A battery pack heat dissipation structure comprising a battery pack (1), characterized in that: Also include the frame (2) and the heat sink (3), the frame (2) is provided with an assembly area (20), the battery pack (1) is arranged in the assembly area (20), the outer wall of the frame (2) is provided with a heat dissipation gap (21) communicated with the assembly area (20), the heat sink (3) is inserted into the heat dissipation gap (21) and is inserted and matched, the heat sink (3) is detachably arranged on the battery pack (1).

2. The battery pack heat dissipation structure of claim 1, wherein: The heat sink (3) includes a main plate (31) and a long plate (32), the number of the long plate (32) is provided with a plurality, the length of the long plate (32) extends along the length direction of the main plate (31), and the long plate (32) is spaced apart along the width direction of the main plate (31).

3. The battery pack heat dissipation structure of claim 1, wherein: The battery pack (1) includes a battery shell (11), a battery cell (12), a heat-conducting silica gel (13), an upper support (14) and a lower support (15), the battery cell (12), the heat-conducting silica gel (13), the upper support (14) and the lower support (15) are arranged in the battery shell (11), and the heat sink (3) is detachably connected with the battery shell (11); the battery cell (12) and the heat-conducting silica gel (13) are arranged between the upper support (14) and the lower support (15), one end of the battery cell (12) is attached to the inner surface of the upper support (14), one end of the heat-conducting silica gel (13) is attached to the inner surface of the lower support (15), and the other end of the battery cell (12) is attached to the other end of the heat-conducting silica gel (13); the battery cell (12), the heat-conducting silica gel (13), the upper support (14) and the lower support (15) constitute a battery cell unit (16), a plurality of battery cell units (16) are arranged from top to bottom, and adjacent upper supports (14) and lower supports (15) are attached to each other.

4. The battery pack heat sink structure of claim 1, wherein: The frame (2) includes a cross beam (22), an inclined beam (23) and a vertical beam (24), both ends of the inclined beam (23) are arranged on the cross beam (22) and the vertical beam (24) respectively, the assembly area (20) is arranged on the inclined beam (23), and the cross beam (22) and the vertical beam (24) are provided with a heat dissipation cavity (4), which is communicated with the assembly area (20).

5. The battery pack heat sink structure of claim 3, wherein: Also include a fastener (5), the battery shell (11) and the heat sink (3) are respectively provided with a first hole (111) and a second hole (33), the first hole (111) and the second hole (33) are opposite, the fastener (5) passes out from the second hole (33) and is screwed in the first hole (111).

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