Battery explosion-proof bracket and battery module

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery explosion-proof support and a battery module, the battery explosion-proof support comprises a support body and an explosion-proof piece, the support body is provided with a first end part and a second end part which are oppositely arranged, the first end part and the second end part are respectively provided with a plurality of placing positions, each placing position is provided with a jet hole, and the jet holes are communicated with the explosion-proof piece. Each placement position is used for accommodating one battery, the anti-explosion piece is mounted on the bracket body, is positioned between the first end part and the second end part, blocks the two correspondingly arranged spraying holes, and is used for preventing substances generated by thermal runaway of the batteries from being sprayed in the axial direction of the batteries. The battery explosion-proof bracket not only can well support the battery, but also can restrain the thermal runaway spreading of the battery, and is beneficial to improving the working safety of a battery module.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery explosion-proof bracket and a battery module. Background Art

[0002] The field of sports fitness bikes combines traditional fitness equipment with modern technology, aiming to enhance the user's fitness experience and promote green travel. Some sports fitness models incorporate electric power assist technology, which can provide additional power support when the user pedals, making climbing or long-distance riding easier. Currently, existing sports fitness bikes usually thicken the downtube of the vehicle body and build the battery module into the downtube. The battery module usually includes multiple brackets and multiple batteries. Multiple batteries are spliced ​​in sequence through multiple brackets along their length. Although the existing brackets can support the battery well, their explosion-proof performance is poor. When a battery has thermal runaway, the substances produced by the thermal runaway can easily be ejected along the length of the battery, causing the thermal runaway to spread.

[0003] Therefore, there is an urgent need to propose a battery explosion-proof bracket and a battery module that can suppress the spread of battery thermal runaway. Utility Model Content

[0004] The first object of the utility model is to provide a battery explosion-proof bracket, which can not only well support the battery, but also inhibit the spread of battery thermal runaway, which is beneficial to improving the working safety of the battery module.

[0005] The second object of the present utility model is to provide a battery module, which can not only well support the battery, but also suppress the spread of thermal runaway of the battery, which is beneficial to improving the working safety of the battery module.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model discloses a battery explosion-proof bracket, comprising: a bracket body, the bracket body having a first end and a second end arranged oppositely, the first end and the second end being provided with a plurality of placement positions, each of the placement positions being provided with a spray hole, and each of the placement positions being used to accommodate a battery; an explosion-proof component, the explosion-proof component being installed on the bracket body, the explosion-proof component being located between the first end and the second end and blocking two correspondingly arranged spray holes, and the explosion-proof component being used to prevent substances generated by thermal runaway of the battery from being ejected along the axial direction of the battery.

[0008] In some embodiments, there are multiple explosion-proof members, and each explosion-proof member blocks two correspondingly arranged injection holes; the explosion-proof member includes two connecting tiles and an explosion-proof tile, the explosion-proof tile is connected to the junction of the two connecting tiles and is used to block the two correspondingly arranged injection holes, and one side of each of the two connecting tiles facing away from each other is connected to the first end and the second end respectively, and each connecting tile is provided with an exhaust hole.

[0009] In some specific embodiments, there are multiple exhaust holes, and the multiple exhaust holes are arranged at intervals along the circumferential direction of the explosion-proof tile.

[0010] In some specific embodiments, each connecting tile includes a connected annular portion and a conical barrel portion, the annular portion is connected to the large end of the conical barrel portion, the small ends of the conical barrel portions of the two connecting tiles are connected, and the explosion-proof tile is located at the connection of the small ends of the two conical barrel portions.

[0011] In some embodiments, each placement position is formed as a limiting groove, the limiting groove is used to accommodate and limit the battery, and the injection hole is located on the bottom wall of the limiting groove.

[0012] In some embodiments, a first limiting block is provided on the first end, the first limiting block extends towards the second end, and the first limiting block can abut against the outer peripheral wall of the explosion-proof member; and / or: a second limiting block is provided on the second end, the second limiting block extends towards the first end, and the second limiting block can abut against the outer peripheral wall of the explosion-proof member.

[0013] In some specific embodiments, there are multiple first limiting blocks, and the multiple first limiting blocks are arranged at intervals along the circumferential direction of the explosion-proof member; and / or: there are multiple second limiting blocks, and the multiple second limiting blocks are arranged at intervals along the circumferential direction of the explosion-proof member.

[0014] In some embodiments, the bracket body further includes a wire clip provided on the outer peripheral wall of the first end and / or the second end, and the wire clip is used to clamp the wire of the battery.

[0015] In some specific embodiments, the wire clip includes a first elastic arm and a second elastic arm provided on the outer peripheral walls of two adjacent placement positions, and at least one of the first elastic arm and the second elastic arm is an elastic hook; wherein: the first elastic arm, the second elastic arm, and the outer peripheral wall of the placement position enclose a wire clamping space for clamping the wire.

[0016] The present utility model also discloses a battery module, including a housing, multiple batteries, and the battery explosion-proof bracket described above, and the battery explosion-proof bracket and the multiple batteries are both arranged in the housing.

[0017] Advantages of the battery explosion-proof bracket of the present utility model: Placement positions are provided at both the first end and the second end of the bracket body. The placement positions can stably support the battery, and the ends of the two batteries placed on the first end and the second end are arranged opposite to each other in the length direction thereof. Since an explosion-proof member is provided between the first end and the second end, when one of the batteries experiences thermal runaway, the substances generated by the thermal runaway are blocked by the explosion-proof member after passing through the ejection holes, preventing them from affecting other batteries. Thus, the battery can be stably supported by the first end and the second end of the bracket body, and the substances ejected by the thermal runaway of the battery can be prevented from affecting other intact batteries along the length direction of the battery by the explosion-proof member, which is beneficial to improving the safety performance of the battery module.

[0018] Advantages of the battery module of the present utility model: Due to the battery explosion-proof bracket described above, the first end and the second end of the bracket body can stably support the battery, and the substances ejected by the thermal runaway of the battery can be prevented from affecting other intact batteries along the length direction of the battery by the explosion-proof member, which is beneficial to improving the safety performance of the battery module.

[0019] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural view of the battery explosion-proof bracket of the present utility model;

[0021] Figure 2 is an exploded schematic view of the battery explosion-proof bracket of the present utility model;

[0022] Figure 3 is a schematic structural view of the bracket body of the battery explosion-proof bracket of the present utility model;

[0023] Figure 4 is a schematic structural view of the explosion-proof member of the battery explosion-proof bracket of the present utility model;

[0024] Figure 5 is a partial schematic structural view of the battery module of the present utility model.

[0025] Reference Signs:

[0026] 100, bracket body; 110, first end; 111, first limiting block; 120, second end; 121, second limiting block; 130, connecting portion; 101, placement position; 102, ejection hole; 103, wire clip; 1031, first elastic arm; 1032, second elastic arm; 104, wire clamping space;

[0027] 200, explosion-proof component; 210, connecting tile; 211, annular part; 212, conical cylinder part; 2121, exhaust hole; 220, explosion-proof tile;

[0028] 300, battery. Specific embodiments

[0029] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0030] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0032] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0033] The present invention discloses a battery explosion-proof bracket. Refer to Figure 1 - Figure 2As shown, the battery explosion-proof bracket includes a bracket body 100 and an explosion-proof member 200. The bracket body 100 has a first end 110 and a second end 120 that are oppositely arranged. A plurality of placement positions 101 are provided on both the first end 110 and the second end 120. Each placement position 101 is provided with a spray hole 102, and each placement position 101 is used to accommodate a battery 300. The explosion-proof member 200 is installed on the bracket body 100. The explosion-proof member 200 is located between the first end 110 and the second end 120 and blocks two correspondingly arranged spray holes 102, and the explosion-proof member 200 is used to block the substances generated by the thermal runaway of the battery 300 from erupting along the axial direction of the battery 300. It can be understood that the first end 110 and the second end 120 of the bracket body 100 are both provided with placement positions 101. The placement positions 101 can stably support the battery 300, and the ends of the two batteries 300 placed on the first end 110 and the second end 120 are oppositely arranged along their length directions. Since the explosion-proof member 200 is provided between the first end 110 and the second end 120, when one of the batteries 300 experiences thermal runaway, the substances generated by the thermal runaway are blocked by the explosion-proof member 200 after passing through the spray hole 102, preventing it from affecting other batteries 300. Thus, the first end 110 and the second end 120 of the bracket body 100 can stably support the battery 300, and the explosion-proof member 200 can prevent the substances ejected by the thermal runaway of the battery 300 from affecting other intact batteries 300 along the length direction of the battery 300, which is beneficial to improving the safety performance of the battery module.

[0034] Reference Figure 3 As shown, the first end 110 and the second end 120 are connected by a connecting portion 130. Thus, the bracket body 100 is an integral structure, which is convenient for processing and assembly. Of course, in other embodiments of the present invention, the bracket body 100 can also be a split structure, only including the first end 110 and the second end 120.

[0035] Reference Figure 3 As shown, each placement position 101 is formed as a limiting groove, and the limiting groove is used to accommodate and limit the battery 300. The spray hole 102 is located on the bottom wall of the limiting groove. It can be understood that limiting the battery 300 through the limiting groove is beneficial to simplifying the structure of the battery explosion-proof bracket and reducing its cost while ensuring the stability of the battery 300.

[0036] Reference Figure 2 and Figure 4As shown, there are multiple explosion-proof parts 200, and each explosion-proof part 200 blocks two correspondingly arranged injection holes 102; the explosion-proof part 200 includes two connecting tiles 210 and an explosion-proof tile 220. The explosion-proof tile 220 is connected to the junction of the two connecting tiles 210 and is used to block the two correspondingly arranged injection holes 102. The sides of the two connecting tiles 210 facing away from each other are respectively connected to the first end 110 and the second end 120, and exhaust holes 2121 are provided on each connecting tile 210. It can be understood that by connecting the connecting tiles 210 to the first end 110 and the second end 120, the explosion-proof part 200 can be stably installed between the first end 110 and the second end 120. During actual operation, the substances ejected during the thermal runaway of the battery 300 can be blocked by the explosion-proof tile 220 after passing through the injection holes 102, and after being blocked, they can diffuse radially along the explosion-proof tile 220 and finally be discharged from the exhaust holes 2121 on the connecting tiles 210 out of the battery explosion-proof bracket. Thus, the substances ejected during the thermal runaway of the battery 300 are prevented from affecting other intact batteries 300 along the length direction of the battery 300, which is beneficial to improving the safety performance of the battery module.

[0037] It should be added that in the embodiment of the present utility model, both the connecting tiles 210 and the explosion-proof tiles 220 are made of materials with high temperature resistance and corrosion resistance, such as ceramics, etc., so as to improve the explosion-proof performance.

[0038] Optionally, there are multiple exhaust holes 2121, and the multiple exhaust holes 2121 are arranged at intervals along the circumferential direction of the explosion-proof tile 220. It can be understood that during actual operation, the substances ejected during the thermal runaway of the battery 300 can be blocked by the explosion-proof tile 220 after passing through the injection holes 102, and after being blocked, they can diffuse radially along the explosion-proof tile 220 and then be discharged from the multiple exhaust holes 2121 out of the battery explosion-proof bracket. The multiple exhaust holes 2121 are beneficial to improving the discharge speed of the substances ejected during the thermal runaway of the battery 300, thereby reducing the impact of the thermal runaway of the battery 300 and being beneficial to extending the service life of the battery module. It should be added that in the embodiment of the present utility model, the exhaust holes 2121 can be round holes, square holes or other shaped holes, and the shape, quantity and arrangement of the exhaust holes 2121 can all be selected according to actual needs.

[0039] Optionally, each connecting tile 210 includes a connected annular portion 211 and a conical barrel portion 212. The annular portion 211 is connected to the large end of the conical barrel portion 212. The small ends of the conical barrel portions 212 of two connecting tiles 210 are connected, and the explosion-proof tile 220 is located at the connection of the small ends of the two conical barrel portions 212. It can be understood that the annular portion 211 can ensure the connection stability between the connecting tile 210 and the first end portion 110 and the second end portion 120, thereby ensuring the connection stability between the explosion-proof member 200 and the bracket body 100. The conical barrel portion 212 can guide the substances generated by the thermal runaway of the battery 300, so that they can be discharged smoothly from the exhaust hole 2121, thereby ensuring the explosion-proof effect of the battery explosion-proof bracket.

[0040] Optionally, referring to Figure 3 As shown, a first limiting block 111 is provided on the first end portion 110. The first limiting block 111 extends towards the second end portion 120, and the first limiting block 111 can abut against the outer peripheral wall of the annular portion 211. It can be understood that since both ends of the explosion-proof member 200 abut against the first end portion 110 and the second end portion 120 respectively, setting the first limiting block 111 on the first end portion 110 can prevent the explosion-proof member 200 from disengaging from the bracket body 100, without the need to connect the explosion-proof member 200 and the bracket body 100 by means of a snap structure or a connecting member, etc., which simplifies the connection form between the explosion-proof member 200 and the bracket body 100 and facilitates the installation and disassembly of the explosion-proof member 200. Further, there are multiple first limiting blocks 111, and the multiple first limiting blocks 111 are arranged at intervals along the circumferential direction of the explosion-proof member 200. The multiple first limiting blocks 111 can enhance the limiting effect on the explosion-proof member 200, thereby further preventing the explosion-proof member 200 from disengaging from the bracket body 100. It should be added that the shape and number of the first limiting blocks 111 can be selected according to actual needs.

[0041] Optionally, referring to Figure 3As shown, a second limiting block 121 is provided on the second end portion 120. The second limiting block 121 extends towards the second end portion 120, and the second limiting block 121 can abut against the outer peripheral wall of the annular portion 211. It can be understood that since both ends of the explosion-proof member 200 abut against the first end portion 110 and the second end portion 120 respectively, setting the second limiting block 121 on the second end portion 120 can prevent the explosion-proof member 200 from disengaging from the bracket body 100, without the need to use a buckle structure or a connecting member to connect the explosion-proof member 200 to the bracket body 100, simplifying the connection form between the explosion-proof member 200 and the bracket body 100 and facilitating the installation and disassembly of the explosion-proof member 200. Further, there are multiple second limiting blocks 121, and the multiple second limiting blocks 121 are arranged at intervals along the circumferential direction of the explosion-proof member 200. The multiple second limiting blocks 121 can enhance the limiting effect on the explosion-proof member 200, thereby further preventing the explosion-proof member 200 from disengaging from the bracket body 100. It should be added that the shape and number of the second limiting blocks 121 can be selected according to actual needs.

[0042] In the embodiment of the present utility model, the first limiting block 111 and the second limiting block 121 can be set according to actual needs. Specifically, in some embodiments, only the first limiting block 111 is provided to limit the explosion-proof member 200; in some embodiments, only the second limiting block 121 is provided to limit the explosion-proof member 200; in some embodiments, both the first limiting block 111 and the second limiting block 121 are provided to limit the explosion-proof member 200, and the multiple first limiting blocks 111 and the multiple second limiting blocks 121 can be correspondingly arranged or staggered in the circumferential direction, and parameters such as the shape and number of the first limiting block 111 and the second limiting block 121 can be the same or different.

[0043] It should be additionally noted here that the annular portion 211 can also be connected to the first end portion 110 and the second end portion 120 by means of bonding, snap connection or connection by a connecting member, etc., and is not limited to the limiting method of the above-mentioned first limiting block 111 and second limiting block 121.

[0044] It should be additionally noted that in other embodiments of the present utility model, the explosion-proof member 200 can form a complete component, and each explosion-proof member 200 includes multiple explosion-proof units, and each explosion-proof unit is used to block two correspondingly arranged injection holes 102, and is not limited to the scheme in which multiple explosion-proof members 200 are independently arranged in this embodiment.

[0045] Reference Figure 3As shown in the figure, the bracket body 100 further includes a wire clip 103 provided on the outer peripheral wall of the first end portion 110 and / or the second end portion 120. The wire clip 103 is used for clamping the wire of the battery 300. The wire clip 103 can be provided only on the first end portion 110, or only on the second end portion 120, or can be provided with wire clips 103 on both the first end portion 110 and the second end portion 120. The added wire clip 103 can standardize the guiding, avoid the phenomenon of wire entanglement or being damaged by foreign objects, thereby being beneficial to improving the working reliability of the battery module.

[0046] Optionally, the wire clip 103 includes a first elastic arm 1031 and a second elastic arm 1032 provided on the outer peripheral walls of two adjacent placement positions 101. At least one of the first elastic arm 1031 and the second elastic arm 1032 is an elastic hook: the first elastic arm 1031, the second elastic arm 1032, and the outer peripheral walls of the placement positions 101 enclose a wire clamping space 104 for clamping the wire. It can be understood that during the actual working process, only by inserting the wire into the wire clamping space 104, and the first elastic arm 1031 and the second elastic arm 1032 can automatically rebound after the wire clamping is completed, the wire can be constrained in the wire clamping space 104, thereby ensuring that the wire remains in a fixed position, avoiding the phenomenon of wire entanglement or being damaged by foreign objects, and thus being beneficial to improving the working reliability of the battery module.

[0047] The present utility model also discloses a battery module. Refer to Figure 5 As shown in the figure, the battery module includes a housing (not shown in the figure), a plurality of batteries 300, and the foregoing battery explosion-proof bracket. The battery explosion-proof bracket and the plurality of batteries 300 are both provided in the housing. It can be understood that battery explosion-proof brackets are provided at both ends of each battery 300 along its length direction to ensure the stability of the battery 300. Due to the foregoing battery explosion-proof bracket, the first end portion 110 and the second end portion 120 of the bracket body 100 can stably support the battery 300, and the substances ejected by the thermal runaway of the battery 300 can be prevented from affecting other intact batteries 300 along the length direction of the battery 300 through the explosion-proof member 200, which is beneficial to improving the safety performance of the battery module.

[0048] In the description of this specification, the descriptions referring to terms such as "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0049] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A battery explosion-proof bracket, characterized in that, Comprising: A bracket body (100), the bracket body (100) having a first end portion (110) and a second end portion (120) disposed opposite to each other, a plurality of placement positions (101) being provided on both the first end portion (110) and the second end portion (120), a jet hole (102) being provided on each placement position (101), and each placement position (101) being adapted to receive a battery (300); An explosion-proof member (200), the explosion-proof member (200) being mounted on the bracket body (100), the explosion-proof member (200) being located between the first end portion (110) and the second end portion (120) and blocking two correspondingly arranged jet holes (102), and the explosion-proof member (200) being adapted to block substances generated by thermal runaway of the battery (300) from erupting along the axial direction of the battery (300).

2. The battery explosion-proof bracket according to claim 1, characterized in that, There are a plurality of the explosion-proof members (200), and each explosion-proof member (200) blocks two correspondingly arranged jet holes (102); each explosion-proof member (200) includes two connecting tiles (210) and an explosion-proof tile (220), the explosion-proof tile (220) being connected to the junction of the two connecting tiles (210) and being adapted to block two correspondingly arranged jet holes (102), one side of each of the two connecting tiles (210) facing away from each other being connected to the first end portion (110) and the second end portion (120) respectively, and an exhaust hole (2121) being provided on each connecting tile (210).

3. The battery explosion-proof bracket according to claim 2, wherein, There are a plurality of the exhaust holes (2121), and the plurality of exhaust holes (2121) are arranged at intervals along the circumferential direction of the explosion-proof tile (220).

4. The battery explosion-proof bracket according to claim 2, characterized in that, Each connecting tile (210) includes a connected annular portion (211) and a conical barrel portion (212), the annular portion (211) being connected to the large end of the conical barrel portion (212), the small ends of the conical barrel portions (212) of the two connecting tiles (210) being connected, and the explosion-proof tile (220) being located at the connection of the small ends of the two conical barrel portions (212).

5. The battery explosion-proof bracket according to claim 1, characterized in that, Each placement position (101) is formed as a limiting groove, the limiting groove being adapted to receive and limit the battery (300), and the jet hole (102) being located on the bottom wall of the limiting groove.

6. The battery explosion-proof bracket according to claim 1, characterized in that, A first limiting block (111) is provided on the first end portion (110), the first limiting block (111) extending towards the second end portion (120), and the first limiting block (111) being capable of abutting against the outer peripheral wall of the explosion-proof member (200); and / or: A second limiting block (121) is provided on the second end portion (120), the second limiting block (121) extending towards the first end portion (110), and the second limiting block (121) being capable of abutting against the outer peripheral wall of the explosion-proof member (200).

7. The battery explosion-proof bracket according to claim 6, wherein The first limiting blocks (111) are multiple, and the multiple first limiting blocks (111) are arranged at intervals along the circumferential direction of the explosion-proof member (200); and / or: the second limiting blocks (121) are multiple, and the multiple second limiting blocks (121) are arranged at intervals along the circumferential direction of the explosion-proof member (200).

8. The battery explosion-proof bracket according to claim 1, wherein, The bracket body (100) further includes a wire clamp (103) provided on the outer peripheral wall of the first end portion (110) and / or the second end portion (120), and the wire clamp (103) is used for clamping the wire of the battery (300).

9. The battery explosion-proof bracket according to claim 8, characterized in that, The wire clamp (103) includes a first elastic arm (1031) and a second elastic arm (1032) provided on the outer peripheral walls of two adjacent placement positions (101), and at least one of the first elastic arm (1031) and the second elastic arm (1032) is an elastic hook; wherein: the first elastic arm (1031), the second elastic arm (1032), and the outer peripheral wall of the placement position (101) enclose a wire clamping space (104) for clamping the wire.

10. A battery module, characterized in that, It includes a housing, a plurality of batteries (300), and a battery explosion-proof bracket according to any one of claims 1-9, and the battery explosion-proof bracket and the plurality of batteries (300) are both provided in the housing.

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