Shell and battery pack

Abstract

The utility model provides a shell and battery pack wherein the shell comprises: a box body, the box body comprises a bottom plate and a lower side plate connected with the bottom plate, the lower side plate is arranged around the edge of the bottom plate and is located above the bottom plate, a first through hole is formed in the top of the side surface of the lower side plate, and a battery module can be accommodated in the box body; the box cover covers the top of the box body and comprises a top plate and an upper side plate connected with the top plate, the upper side plate is arranged around the edge of the top plate and located below the top plate, a second through hole corresponding to the first through hole is formed in the bottom of the side face of the upper side plate, and the bottom of the upper side plate and the top of the lower side plate are overlapped; the bottom of the upper side plate or the top of the lower side plate is provided with a folding edge which is bent from outside to inside; the fastener penetrates through the first through hole and the second through hole, so that the upper side plate and the lower side plate are tightly connected. The shell is smooth in outer surface, stable in structure and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the field of new energy batteries, and more specifically, to a housing and a battery pack. Background Art

[0002] The housing in the battery pack of the existing two-wheel vehicle usually includes a housing main body with an opening and a sealing plate capable of covering the opening. First, the housing main body is wrapped around the battery module, and then the sealing plate is welded to the opening of the housing main body.

[0003] Although it is relatively strong in this way, the process is complicated and the efficiency is low. The welding temperature is high, which also affects the battery module. Welding causes bulges and unevenness on the outer surface of the housing, affecting the appearance and use, and it is not convenient for disassembly and assembly. Summary of the Utility Model

[0004] The utility model provides a new technical solution for an energy storage component, which can at least solve the problems of uneven outer surface of the housing and inconvenience in disassembly and assembly in the prior art.

[0005] According to the first aspect of the utility model, a housing is provided, and the housing includes:

[0006] A box body, the box body includes a bottom plate and a lower side plate connecting the bottom plate. The lower side plate is arranged around the edge of the bottom plate and is located above the bottom plate. A first through hole is formed at the top of the side surface of the lower side plate, and a battery module can be accommodated in the box body;

[0007] A box cover, the box cover covers the top of the box body. The box cover includes a top plate and an upper side plate connecting the top plate. The upper side plate is arranged around the edge of the top plate and is located below the top plate. A second through hole corresponding to the first through hole is formed at the bottom of the side surface of the upper side plate. The bottom of the upper side plate overlaps with the top of the lower side plate, and a folded edge that bends from the outside to the inside is formed at the bottom of the upper side plate or the top of the lower side plate;

[0008] A fastener, the fastener passes through the first through hole and the second through hole to tightly connect the upper side plate and the lower side plate.

[0009] Optionally, the folded edge is formed at the bottom of the upper side plate, and the top of the lower side plate sleevs the bottom of the upper side plate.

[0010] Optionally, the folded edge is formed at the top of the lower side plate, and the bottom of the upper side plate sleevs the top of the lower side plate.

[0011] Optionally, the first through hole, the second through hole and the fastener all include a plurality of spaced-apart arrangements.

[0012] Optionally, the first through hole is a first threaded hole, the second through hole is a second threaded hole, and the fastener is a bolt.

[0013] Optionally, the housing further includes:

[0014] A handle disposed on the upper surface of the top plate.

[0015] According to a second aspect of the present invention, there is provided a battery pack, the battery pack including:

[0016] A housing, the housing being any one of the above-mentioned housings;

[0017] A battery module disposed within the housing.

[0018] Optionally, the battery pack further includes:

[0019] A thermal conductive adhesive layer disposed between the bottom of the battery module and the upper surface of the bottom plate of the housing.

[0020] Optionally, the size of the housing is adapted to the size of the battery module such that the housing can closely adhere to the side walls of the battery module.

[0021] Optionally, the battery module includes:

[0022] A module main body;

[0023] A battery management system disposed on the top of the main body;

[0024] A plug-in member disposed above the main body and spaced apart from the battery management system.

[0025] In the housing, the top plate protrudes upward at a position corresponding to the battery management system to accommodate the battery management system, and a connection hole is formed in the top plate at a position corresponding to the plug-in member, and the plug-in member is inserted into the connection hole.

[0026] According to the housing of the present invention, it includes a box body and a box cover. The box body includes a bottom plate and a lower side plate disposed around the edge of the bottom plate. The box cover includes a top plate and an upper side plate disposed around the edge of the top plate. A folded edge that bends inward from the outside is formed at the top of the lower side plate or the bottom of the upper side plate. Align the second through hole at the bottom of the side surface of the upper side plate with the first through hole at the bottom of the side surface of the lower side plate, so that the outer surface of the upper side plate and the outer surface of the lower plate are aligned. The fastener passes through the first through hole and the second through hole, so that the upper side plate and the lower side plate are tightly connected. Thus, the outer surface of the housing is relatively flat, and the box cover and the box body are tightly connected with high connection strength, stable structure, not easily deformed, capable of forming good protection for the battery module, and improving the operation efficiency and facilitating disassembly and assembly.

[0027] Other features and advantages of the present utility model will become clear from the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0028] The drawings incorporated in and forming a part of this specification illustrate embodiments of the present utility model and, together with the description, serve to explain the principles of the present utility model.

[0029] Figure 1 is a structural diagram of a battery pack according to an embodiment of the present utility model;

[0030] Figure 2 is Figure 1 a cross-sectional view of the upper part of the battery pack in

[0031] Figure 3 is a schematic diagram of a housing according to the first embodiment of the present utility model;

[0032] Figure 4 is a schematic diagram of a housing according to the second embodiment of the present utility model;

[0033] Figure 5 is a structural diagram of a battery module according to an embodiment of the present utility model.

[0034] Reference Numerals:

[0035] 10, housing; 11, box cover; 111, top plate; 112, upper side plate; 1121, first folded edge; 12, handle; 13, fastener; 14, box body; 141, lower side plate; 1411, second folded edge; 142, bottom plate;

[0036] 20, battery module; 21, connector; 22, battery management system; 23, module main body. Detailed Embodiments

[0037] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended as a limitation on the present utility model or its application or use.

[0039] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be considered as part of the specification.

[0040] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0041] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0042] Next, the housing 10 according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings.

[0043] As Figures 1 to 5 shown, the housing 10 according to an embodiment of the present invention includes a box body 14 and a box cover 11.

[0044] First, the box body 14 will be described. The box body 14 includes a bottom plate 142 and a lower side plate 141 connected to the bottom plate 142. The lower side plate 141 is disposed around the edge of the bottom plate 142 and is located above the bottom plate 142. A first through hole is formed at the top of the side surface of the lower side plate 141. A battery module 20 can be accommodated in the box body 14.

[0045] As Figures 1 to 4 shown, the bottom plate 142 and the lower side plate 141 disposed around the periphery of the bottom plate 142 and located above the bottom plate 142 form the box body 14. The battery module 20 is disposed in the box body 14, and the box body 14 can better protect the battery module 20. A first through hole is formed at the top of the side surface of the lower side plate 141 to facilitate connection with the box cover 11.

[0046] Next, the box cover 11 will be described. The box cover 11 covers the top of the box body 14. The box cover 11 includes a top plate 111 and an upper side plate 112 connected to the top plate 111. The upper side plate 112 is disposed around the edge of the top plate 111 and is located below the top plate 111. A second through hole corresponding to the first through hole is formed at the bottom of the side surface of the upper side plate 112. The bottom of the upper side plate 112 overlaps with the top of the lower side plate 141. A folded edge that bends inward from the outside is formed at the bottom of the upper side plate 112 or the top of the lower side plate 141.

[0047] As Figures 1 to 4 shown, the top plate 111 and the lower side plate 141 disposed around the periphery of the top plate 111 and located below the top plate 111 form the box cover 11, and the box cover 11 covers the top of the box body 14.

[0048] A folded edge (the first folded edge 1121, as Figure 2 shown in the Figure 3 figure) that bends inward from the outside is formed at the bottom of the upper side plate 112, or a folded edge (the second folded edge 1411, as Figure 4 shown) that bends inward from the outside is formed at the top of the lower side plate 141.

[0049] A second through-hole corresponding to the first through-hole is formed at the bottom of the side surface of the upper side plate 112, that is, when the bottom of the upper side plate 112 overlaps with the top of the lower side plate 141, the first through-hole and the second through-hole can be aligned.

[0050] Then, the fastener 13 will be described. The fastener 13 passes through the first through-hole and the second through-hole to tightly connect the upper side plate 112 and the lower side plate 141.

[0051] The fastener 13 can be a bolt, an expansion screw, etc. After the second through-hole of the upper side plate 112 is aligned with the first through-hole of the lower side plate 141, the fastener 13 penetrates into the first through-hole and the second through-hole, so that the upper side plate 112 and the lower side plate 141 are tightly connected.

[0052] The above-mentioned housing 10 includes a box body 14 and a box cover 11. The box body 14 includes a bottom plate 142 and a lower side plate 141 arranged around the edge of the bottom plate 142. The box cover 11 includes a top plate 111 and an upper side plate 112 arranged around the edge of the top plate 111. A folded edge that bends inward from the outside is formed at the top of the lower side plate 141 or the bottom of the upper side plate 112. Align the second through-hole at the bottom of the side surface of the upper side plate 112 with the first through-hole at the bottom of the side surface of the lower side plate 141, so that the outer surface of the upper side plate 112 and the outer surface of the lower plate are aligned. The fastener 13 passes through the first through-hole and the second through-hole, so that the upper side plate 112 and the lower side plate 141 are tightly connected. Thus, the outer surface of the housing 10 is relatively flat, and the box cover 11 and the box body 14 are tightly connected with high connection strength, stable structure, not easily deformed, can form good protection for the battery module 20, and improve the operation efficiency and facilitate disassembly and assembly.

[0053] In some embodiments of the present invention, the structure of the housing 10 forming the folded edge includes two types.

[0054] For the first structure, a folded edge is formed at the bottom of the upper side plate 112, and the top of the lower side plate 141 surrounds the bottom of the upper side plate 112.

[0055] As Figure 2 shown in the figure and Figure 3 illustrated, a folded edge is formed by bending the bottom of the upper side plate 112, and the top of the lower side plate 141 surrounds the bottom of the upper side plate 112, that is, the bottom of the upper side plate 112 is embedded inside the top of the lower side plate 141.

[0056] For the second structure, a folded edge is formed at the top of the lower side plate 141, and the bottom of the upper side plate 112 surrounds the top of the lower side plate 141.

[0057] As Figure 4As shown, the top of the lower side plate 141 is bent to form a hem, and the bottom of the upper side plate 112 sleeves the top of the lower side plate 141, that is, the top of the lower side plate 141 is embedded inside the bottom of the upper side plate 112.

[0058] Both of the above two structures can make the outer surface of the housing 10 flat and avoid relative movement between the lid 11 and the box body 14, making the connection between the lid 11 and the box body 14 stable.

[0059] In some embodiments of the present utility model, the first through hole, the second through hole and the fastener 13 all include a plurality of spaced-apart arrangements.

[0060] As Figure 1 shown, a plurality of first through holes are provided around the upper side plate 112, and a plurality of second through holes are provided around the lower side plate 141. By inserting a plurality of fasteners 13 into the plurality of first through holes and the plurality of second through holes one by one, the connection between the lid 11 and the box body 14 becomes tighter.

[0061] Furthermore, the first through hole is a first threaded hole, the second through hole is a second threaded hole, and the fastener 13 is a bolt.

[0062] By threadedly connecting the bolt to the first through hole and the second through hole, rotating the bolt can tightly connect the upper side plate 112 and the lower side plate 141. Thus, the housing 10 can be disassembled and assembled simply.

[0063] In some embodiments of the present utility model, the housing 10 further includes a handle 12. The handle 12 is disposed on the upper surface of the top plate 111.

[0064] As Figure 1 shown, a handle 12 is disposed on the top plate 111 of the lid 11, which can facilitate the taking, placing and moving of the housing 10.

[0065] Next, the battery pack according to the embodiments of the present utility model will be specifically described with reference to the accompanying drawings.

[0066] As Figure 1 and Figure 2 shown, the battery pack includes a housing 10 and a battery module 20. The housing 10 is the above-mentioned housing 10. The battery module 20 is disposed inside the housing 10. The housing 10 can protect the battery module 20 well.

[0067] In some embodiments of the present utility model, the battery pack further includes a thermal conductive adhesive layer, which is disposed between the bottom of the battery module 20 and the upper surface of the bottom plate 142 of the housing 10. It should be noted that the thermal conductive adhesive layer is a known material and will not be described in detail here, such as thermal conductive silicone grease, etc.

[0068] Generally, the battery module 20 is integrally potted with sealant between the housings 10, which results in relatively more material waste and higher costs. In the present utility model, a thermal conductive adhesive layer is provided between the bottom of the battery module 20 and the bottom plate 142 of the box body 14 of the housing 10 and the battery module 20, so that the battery module 20 can be stably adhered within the housing 10, and the heat of the battery module 20 can also be transferred to the housing 10 through the thermal conductive adhesive layer, and the housing 10 dissipates heat from the battery module 20, making the operation of the battery module 20 more stable.

[0069] Further, the size of the housing 10 is adapted to the size of the battery module 20, so that the housing 10 can closely adhere to the side wall of the battery module 20.

[0070] The side wall of the housing 10 and the side wall of the battery module 20 are in interference fit to prevent the battery module 20 from shaking in the horizontal direction and improve the stability of the battery pack.

[0071] In some embodiments of the present utility model, the battery module 20 includes a module main body 23, a battery management system 22, and a plug-in connector 21. The battery management system 22 is disposed on the top of the main body. The plug-in connector 21 is disposed above the main body and is spaced apart from the battery management system 22. In the housing 10, the top plate 111 protrudes upward at a position corresponding to the battery management system 22 to accommodate the battery management system 22, and a connection hole is formed in the top plate 111 at a position corresponding to the plug-in connector 21, and the plug-in connector 21 is inserted into the connection hole.

[0072] As Figure 1 、 Figure 2 and Figure 5 shown, the battery module 20 includes a module main body 23, a battery management system 22, and a plug-in connector 21 (an interface device for connecting to the outside).

[0073] The housing 10 protrudes upward to accommodate the battery management system 22, which better protects the battery management system 22. The plug-in connector 21 is inserted into the connection hole of the top plate 111, and the top plate 111 can better fix the plug-in connector 21, facilitating the connection of the plug-in connector 21 to the outside.

[0074] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A housing (10) for protecting a battery module (20), characterized in that: include: A box body (14), the box body (14) comprising a bottom plate (142) and a lower side plate (141) connected to the bottom plate (142), the lower side plate (141) being arranged around the edge of the bottom plate (142) and being located above the bottom plate (142), a first through hole being formed at the top of the side surface of the lower side plate (141), and the box body (14) being capable of accommodating a battery module (20); A box cover (11), the box cover (11) covers the top of the box body (14), the box cover (11) comprises a top plate (111) and an upper side plate (112) connected to the top plate (111), the upper side plate (112) is arranged around the edge of the top plate (111) and is located below the top plate (111), a second through hole corresponding to the first through hole is formed at the bottom of the side surface of the upper side plate (112), the bottom of the upper side plate (112) overlaps with the top of the lower side plate (141), and a folded edge bent from the outside to the inside is formed at the bottom of the upper side plate (112) or the top of the lower side plate (141); A fastener (13), wherein the fastener (13) passes through the first through hole and the second through hole so as to tightly connect the upper side plate (112) and the lower side plate (141).

2. The housing (10) according to claim 1, characterized in that The bottom of the upper side plate (112) forms the folded edge, and the top of the lower side plate (141) surrounds the bottom of the upper side plate (112).

3. The housing (10) according to claim 1, characterized in that The top of the lower side plate (141) forms the folded edge, and the bottom of the upper side plate (112) surrounds the top of the lower side plate (141).

4. The housing (10) according to claim 1, characterized in that The first through hole, the second through hole and the fastener (13) each include a plurality of fasteners arranged at intervals.

5. The housing (10) according to claim 4, characterized in that The first through hole is a first threaded hole, the second through hole is a second threaded hole, and the fastener (13) is a bolt.

6. The housing (10) according to claim 1, characterized in that The housing (10) further comprises: A handle (12), wherein the handle (12) is arranged on the upper surface of the top plate (111).

7. A battery pack, characterized in that: include: A housing (10), wherein the housing (10) is the housing (10) according to any one of claims 1 to 6; A battery module (20), wherein the battery module (20) is arranged in the housing (10).

8. The battery pack according to claim 7, characterized in that: The battery pack further comprises: A heat-conducting adhesive layer, the heat-conducting adhesive layer being arranged between the bottom of the battery module (20) and the upper surface of the bottom plate (142) of the shell (10).

9. The battery pack according to claim 8, characterized in that: The size of the shell (10) is adapted to the size of the battery module (20), so that the shell (10) can be closely attached to the side wall of the battery module (20).

10. The battery pack according to claim 7, characterized in that: The battery module (20) comprises: Module body (23); A battery management system (22), wherein the battery management system (22) is arranged on the top of the main body; a plug connector (21), the plug connector (21) being arranged above the main body and spaced apart from the battery management system (22), In the housing (10), a top plate (111) protrudes upward at a position corresponding to the battery management system (22) to accommodate the battery management system (22), and a connection hole is formed on the top plate (111) at a position corresponding to the plug connector (21), and the plug connector (21) is inserted into the connection hole.

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