Battery pack positioning heat dissipation support

Abstract

The utility model discloses a battery pack positioning heat dissipation support which comprises a battery pack and two battery supports located at the two ends of the battery pack respectively, the battery pack comprises a plurality of battery cells arranged in parallel in the axial direction, the two battery supports are used for fixing the two ends of the battery pack respectively, and a rubber shell is arranged on the outer side of the battery pack in a sleeved mode. The rubber shell is located outside the two battery supports, and three heat dissipation channels used for heat dissipation are formed between the two battery supports and the battery pack and between the two battery supports and the rubber shell. The bracket has the effects of positioning the battery pack and dissipating heat in the battery pack in time so as to prevent the battery core from being overheated to influence the performance when the battery pack is used.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a battery pack positioning and heat dissipation bracket. Background Art

[0002] A battery pack consists of multiple battery cells connected in series and parallel, which are secured in place by a battery pack bracket. Existing battery pack brackets consist of two upper and lower fixing plates, each with the ends of the battery cells secured to them. Support columns connect the two fixing plates. The support columns are bolted to the two fixing plates to secure the battery pack.

[0003] During battery use, heat dissipation mainly relies on air circulation around the battery cells. However, after the battery pack is fixed in place by an existing battery pack bracket, the space inside the bracket is too closed, so that the heat generated by the battery cells cannot be dissipated in time, thus affecting the performance of the battery pack. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a battery pack positioning and heat dissipation bracket.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A battery pack positioning and heat dissipation bracket comprises: a battery pack and two battery brackets respectively located at both ends of the battery pack, the battery pack comprising a plurality of battery cells arranged axially in parallel, the two battery brackets respectively used to fix the two ends of the battery pack, the outer side of the battery pack is provided with a plastic shell, the plastic shell is located outside the two battery brackets, and three heat dissipation channels for heat dissipation are formed between the two battery brackets and the battery pack, and between the two battery brackets and the plastic shell.

[0007] In one embodiment, both of the battery holders are provided with a plurality of positioning holes for fixing the battery pack, the plurality of positioning holes are arranged corresponding to the plurality of battery cells, and each positioning hole is used to fix an end portion of a corresponding battery cell.

[0008] In one embodiment, the two sides of the battery holder are respectively an outer side and an inner side, the inner side surfaces of the two battery holders are arranged opposite to each other, the inner side surfaces of the two battery holders are respectively facing the two ends of the battery pack, and the outer side surfaces of the two battery holders are respectively facing the side away from the battery pack.

[0009] In one embodiment, the outer side surfaces of the two battery holders are provided with a plurality of clips for positioning the battery pack, and the plurality of clips are evenly distributed along the circumferential direction of the battery holder, one end of the plurality of clips is fixed on the inner wall of the battery holder, and the other end of the plurality of clips extends into the positioning hole, and the clips are engaged with the end face of the battery cell to limit the battery pack.

[0010] In one embodiment, a plurality of connecting pieces are welded to both ends of the battery pack, and each of the connecting pieces is respectively welded to the positive and negative electrodes of the plurality of battery cells on the same end face of the battery pack.

[0011] In one embodiment, a plurality of heat dissipation holes are provided on the battery holder, and the plurality of heat dissipation holes pass through both sides of the battery holder. The heat dissipation holes are provided in the gaps between adjacent positioning holes to dissipate heat inside the battery pack.

[0012] In one embodiment, fixing plates are provided on the outer side surfaces of the two battery holders relative to the positions of the plurality of heat dissipation holes, and through holes for communicating with the heat dissipation holes are provided on the fixing plates. A fixing plate is provided between two adjacent connecting plates, and the fixing plate is used to fix and separate the two adjacent connecting plates, and the two adjacent connecting plates are clamped with the outer side of the middle fixing plate.

[0013] In one embodiment, the heat dissipation holes are located in the gaps between the plurality of battery cells, and the gaps between the middle region of the battery cell and the adjacent battery cells form an intermediate heat dissipation channel for heat dissipation.

[0014] In one embodiment, a plurality of support blocks are provided on the four outer sides of the battery holder along the circumferential direction. The support blocks are provided protruding from the outer sides of the battery holder. The support blocks are used to protect the end faces of the battery pack. Two adjacent support blocks are separated by a certain distance.

[0015] In one embodiment, the multiple support blocks of one of the battery holders and the left side of the interior of the plastic shell form a left heat dissipation channel, and the multiple support blocks of another battery holder and the right side of the interior of the plastic shell form a right heat dissipation channel. The left heat dissipation channel, the right heat dissipation channel and the middle heat dissipation channel constitute three heat dissipation channels of the battery pack.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] A battery pack positioning and heat dissipation bracket of the utility model positions the battery pack by setting positioning holes and snap-on components to limit the position of the battery pack. The battery bracket is provided with heat dissipation holes, which circulate with the interior of the battery pack to form an intermediate heat dissipation channel for heat dissipation. A left heat dissipation channel and a right heat dissipation channel are formed between the support block on the outside of the battery bracket and the plastic shell. The three heat dissipation channels allow air to circulate inside the battery pack, thereby avoiding the problem of overheating of the battery cells during use and affecting the performance of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments.

[0019] Figure 1 This is a structural diagram of a battery pack positioning and heat dissipation bracket provided by the utility model;

[0020] Figure 2 This is a structural schematic diagram of a battery bracket in a battery pack positioning and heat dissipation bracket provided by the utility model;

[0021] Figure 3 This is a schematic structural diagram of the welding of the connecting piece and the battery pack in a battery pack positioning and heat dissipation bracket provided by the utility model;

[0022] Figure 4 This is a structural diagram of a plastic shell in a battery pack positioning and heat dissipation bracket provided by the utility model;

[0023] Figure 5 The utility model provides a schematic cross-sectional structure diagram of a plastic shell in a battery pack positioning and heat dissipation bracket.

[0024] Description of the drawings: 10, battery pack; 11, battery cell; 20, battery holder; 201, outer side; 202, inner side; 21, positioning hole; 22, heat dissipation hole; 23, support block; 30, buckle; 40, connecting plate; 50, fixing plate; 51, through hole; 60, plastic shell; 70, middle heat dissipation channel; 80, left heat dissipation channel; 90, right heat dissipation channel. DETAILED DESCRIPTION

[0025] In order to facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0026] A battery pack positioning and heat dissipation bracket, referring to Figure 1 , including a battery pack 10 and two battery holders 20 respectively located on the top and bottom of the battery pack 10. The battery pack 10 includes a plurality of battery cells 11 arranged axially parallel, and the top and bottom of the battery cells 11 are both provided with battery holders 20 for fixing.

[0027] Reference Figure 1 The two battery holders 20 are arranged opposite to each other, and are respectively used to fix the two ends of the battery pack 10. In this embodiment, the two battery holders 20 have the same shape and structure. One battery holder 20 is used to fix one end of the battery pack 10, and the other battery holder 20 is used to fix the other end of the battery pack 10, so that the battery pack 10 is confined between the two battery holders 20.

[0028] Further, refer to Figure 1 and Figure 2 Both battery holders 20 are provided with a plurality of positioning holes 21 for securing the battery pack 10. The plurality of positioning holes 21 are arranged corresponding to the plurality of battery cells 11, and each positioning hole 21 is used to secure the end of a corresponding battery cell 11. In this embodiment, the plurality of positioning holes 21 on one battery holder 20 are used to secure one end of the plurality of battery cells 11, and the plurality of positioning holes 21 on the other battery holder 20 are used to secure the other end of the plurality of battery cells 11. The two battery holders 20 are used to secure the plurality of battery cells 11 in the axial direction of the battery pack 10, thereby positioning the battery pack 10.

[0029] Reference Figure 1 and Figure 2 The two sides of the battery holder 20 are respectively an outer side surface 201 and an inner side surface 202. The inner side surfaces 202 of the two battery holders 20 are arranged opposite to each other. The inner side surfaces 202 of the two battery holders 20 are respectively facing the two ends of the battery pack 10, and the outer side surfaces 201 of the two battery holders 20 are respectively facing the side away from the battery pack 10.

[0030] Reference Figure 1 and Figure 2 The outer side surfaces 201 of the two battery holders 20 are each provided with a plurality of clips 30 for positioning the battery pack 10. The clips 30 are arranged in a rectangular shape. The plurality of clips 30 are evenly distributed along the circumferential direction of the battery holder 20. One end of the plurality of clips 30 is fixed to the inner wall of the battery holder 20, and the other end of the plurality of clips 30 extends from the inner wall of the battery holder 20 into the positioning hole 21. When the end of the battery cell 11 is positioned in the positioning hole 21 on the battery holder 20, the clips 30 are engaged with the end surface of the battery cell 11 to limit the position of the battery pack 10. After the two battery holders 20 respectively fix the two ends of the battery pack 10, the plurality of clips 30 on the two battery holders 20 are engaged with the end surfaces of the plurality of battery cells 11 of the battery pack 10 to limit the position of the battery pack 10 and prevent the battery pack 10 from moving in a direction perpendicular to the axial direction.

[0031] Further, refer to Figure 1 and Figure 2, multiple clips 30 only extend to a certain distance from the positioning hole 21, and do not extend to the middle position of the battery cell 11, so as to avoid contact with the middle area of ​​the battery cell 11, so that the middle area of ​​the ends of multiple battery cells 11 leak out.

[0032] Reference Figure 3 A plurality of connecting pieces 40 are welded at both ends of the battery pack 10 . After the battery holder 20 is fixed, the positive and negative electrodes of the plurality of battery cells 11 are welded through the connecting pieces 40 to form the battery pack 10 .

[0033] Reference Figure 3 Each connecting piece 40 is welded to the positive and negative electrodes of multiple battery cells 11 on the same end surface of the battery pack 10. The connecting piece 40 connects the multiple battery cells 11 in series or in parallel and acts as a conductor for current flow, allowing the multiple battery cells 11 to form the battery pack 10. In this embodiment, four adjacent battery cells 11 form a group, and each connecting piece 40 is used to connect four adjacent battery cells 11 in series or in parallel.

[0034] Further, refer to Figure 1 and Figure 2 The battery holder 20 is provided with a plurality of heat dissipation holes 22 , which penetrate both sides of the battery holder 20 . The plurality of heat dissipation holes 22 are used to dissipate heat inside the battery pack 10 . The heat dissipation holes 22 are provided in the gaps between four adjacent positioning holes 21 . The four adjacent positioning holes 21 form a rectangular shape. The heat dissipation holes 22 are located between the four adjacent positioning holes 21 , so that the heat dissipation holes 22 are located in the gaps between the four adjacent battery cells 11 to dissipate heat inside the battery pack 10 .

[0035] Reference Figure 1 and Figure 2 The outer sides 201 of the two battery holders 20 are each provided with a fixing plate 50 positioned relative to the plurality of heat dissipation holes 22. The fixing plate 50 has a through hole 51 for communicating with the heat dissipation holes 22. The fixing plate 50 is rectangular. A fixing plate 50 is provided between two adjacent connecting plates 40. The fixing plate 50 serves to secure and separate the two adjacent connecting plates 40. The two adjacent connecting plates 40 engage with the outer side of the middle fixing plate 50, thereby securing the multiple connecting plates 40 on the battery holder 20.

[0036] Further, refer to Figure 3 A plurality of support blocks 23 are provided on the four outer sides of the battery holder 20 in the circumferential direction. The support blocks 23 protrude from the outer sides of the battery holder 20. The support blocks 23 are used to protect the end faces of the battery pack 10 from direct contact with the outside world, and the support blocks 23 play a role in supporting the battery pack 10. When the battery pack 10 is placed, the support blocks 23 on the outer sides of the battery holder 20 on both sides of the battery pack 10 can support the battery pack 10 and play a role in positioning.

[0037] Further, refer to Figure 3 , two adjacent support blocks 23 are separated by a certain distance, and the support blocks 23 are arranged in an inverted U shape, and air circulation channels are formed between the two adjacent support blocks 23 and between the support blocks 23 of the two battery holders 20 to further dissipate the heat generated by the battery pack 10.

[0038] Reference Figure 4 and Figure 5 After the battery pack 10 is fixed by the battery bracket 20 and the connecting piece 40 is welded, a plastic shell 60 is provided on the outside of the battery pack 10. The plastic shell 60 is located outside the two battery brackets 20. The plastic shell 60 covers the battery pack 10 so that the battery pack 10 is located inside the plastic shell 60.

[0039] Further, refer to Figure 5 The heat dissipation holes 22 are located in the gaps between the multiple battery cells 11. The gaps between the middle area of ​​the battery cell 11 and the adjacent battery cells 11 form a middle heat dissipation channel 70 for dissipating heat. The left side of the interior of the plastic shell 60 is located relative to one end of the battery pack 10, and the right side of the interior of the plastic shell 60 is located relative to the other end of the battery pack 10. The multiple support blocks 23 of one battery holder 20 and the left side of the interior of the plastic shell 60 form a left heat dissipation channel 80, and the multiple support blocks 23 of the other battery holder 20 and the right side of the interior of the plastic shell 60 form a right heat dissipation channel 90. The left heat dissipation channel 80, the right heat dissipation channel 90, and the middle heat dissipation channel 70 constitute the three heat dissipation channels of the battery pack 10, thereby preventing heat accumulation or uneven temperature inside the battery pack 10 from affecting the performance of the battery pack 10.

[0040] The bracket positions the battery pack 10 by providing a positioning hole 21 and a clip 30 assembly to limit the position of the battery pack 10. The battery bracket 20 is provided with a heat dissipation hole 22, which circulates with the interior of the battery pack 10 to form a middle heat dissipation channel 70 for heat dissipation. The support block 23 on the outside of the battery bracket 20 and the plastic shell 60 form a left heat dissipation channel 80 and a right heat dissipation channel 90. These three heat dissipation channels allow air to circulate inside the battery pack 10, thereby preventing the battery cells 11 from overheating during use and affecting the performance of the battery pack 10.

[0041] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A battery pack positioning and heat dissipation bracket, characterized in that: include: A battery pack (10) and two battery holders (20) respectively located at two ends of the battery pack (10); the battery pack (10) comprises a plurality of battery cells (11) arranged in parallel in an axial direction; the two battery holders (20) are respectively used to fix the two ends of the battery pack (10); a plastic shell (60) is provided on the outer side of the battery pack (10); the plastic shell (60) is located outside the two battery holders (20); and three heat dissipation channels for heat dissipation are formed between the two battery holders (20) and the battery pack (10) and between the two battery holders (20) and the plastic shell (60).

2. The battery pack positioning and heat dissipation bracket according to claim 1, characterized in that: A plurality of positioning holes (21) for fixing the battery pack (10) are provided on each of the two battery supports (20); the plurality of positioning holes (21) are arranged corresponding to the plurality of battery cells (11); and each positioning hole (21) is used to fix the end of a corresponding battery cell (11).

3. The battery pack positioning and heat dissipation bracket according to claim 2, characterized in that: The two sides of the battery holder (20) are respectively an outer side surface (201) and an inner side surface (202); the inner side surfaces (202) of the two battery holders (20) are arranged opposite to each other; the inner side surfaces (202) of the two battery holders (20) are respectively oriented toward the two ends of the battery pack (10); and the outer side surfaces (201) of the two battery holders (20) are respectively oriented toward a side away from the battery pack (10).

4. The battery pack positioning and heat dissipation bracket according to claim 3, characterized in that: The outer side surfaces (201) of the two battery holders (20) are both provided with a plurality of clips (30) for positioning the battery pack (10), the plurality of clips (30) being evenly distributed along the circumferential direction of the battery holder (20), one end of the plurality of clips (30) being fixed on the inner wall of the battery holder (20), the other end of the plurality of clips (30) extending into the positioning hole (21), the clips (30) being buckled with the end surface of the battery core (11) to limit the position of the battery pack (10).

5. The battery pack positioning and heat dissipation bracket according to claim 4, characterized in that: A plurality of connecting pieces (40) are welded to both ends of the battery pack (10), and each connecting piece (40) is respectively welded to the positive and negative electrodes of the plurality of battery cells (11) on the same end surface of the battery pack (10).

6. The battery pack positioning and heat dissipation bracket according to claim 5, characterized in that: The battery holder (20) is provided with a plurality of heat dissipation holes (22), the plurality of heat dissipation holes (22) passing through both sides of the battery holder (20), and the heat dissipation holes (22) are provided in the gaps between adjacent positioning holes (21) to dissipate heat inside the battery pack (10).

7. The battery pack positioning and heat dissipation bracket according to claim 6, characterized in that: The outer side surfaces (201) of the two battery holders (20) are both provided with fixing plates (50) at positions relative to the plurality of heat dissipation holes (22); the fixing plates (50) are provided with through holes (51) for communicating with the heat dissipation holes (22); a fixing plate (50) is provided between two adjacent connecting plates (40); the fixing plate (50) is used to fix and separate the two adjacent connecting plates (40); and the two adjacent connecting plates (40) are clamped to the outer sides of the fixing plate (50) in the middle.

8. The battery pack positioning and heat dissipation bracket according to claim 6, characterized in that: The heat dissipation holes (22) are located in the gaps between the plurality of battery cells (11), and the gaps between the middle region of the battery cell (11) and the adjacent battery cells (11) form an intermediate heat dissipation channel (70) for heat dissipation.

9. The battery pack positioning and heat dissipation bracket according to claim 8, characterized in that: A plurality of support blocks (23) are provided on four outer sides of the battery holder (20) along the circumferential direction. The support blocks (23) are provided protruding from the outer sides of the battery holder (20). The support blocks (23) are used to protect the end faces of the battery pack (10). Two adjacent support blocks (23) are spaced a certain distance apart.

10. The battery pack positioning and heat dissipation bracket according to claim 9, characterized in that: The plurality of support blocks (23) of one of the battery holders (20) and the left side of the interior of the plastic shell (60) form a left heat dissipation channel (80), and the plurality of support blocks (23) of the other battery holder (20) and the right side of the interior of the plastic shell (60) form a right heat dissipation channel (90). The left heat dissipation channel (80), the right heat dissipation channel (90) and the middle heat dissipation channel (70) constitute three heat dissipation channels of the battery pack (10).

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