Battery pack for two-wheeled vehicle

Abstract

The utility model provides a battery pack for a two-wheeled vehicle, the battery pack for the two-wheeled vehicle comprises a shell and a battery module arranged in the shell, the battery module comprises two mounting plates, the two mounting plates are oppositely arranged, and mounting holes are formed in the side surfaces of the two mounting plates; the two ends of the battery cells in the length direction are respectively inserted into the two mounting holes of the two mounting plates; the positive electrode lead-out piece and the negative electrode lead-out piece are arranged at the top end of the mounting plate in a spaced mode, the shell comprises a box body, the box body comprises a bottom plate and a lower side plate, and a first through hole is formed in the top of the side face of the lower side plate; the box cover comprises a top plate and an upper side plate, a second through hole is formed in the bottom of the side face of the upper side plate, and a folded edge bent from outside to inside is formed at the bottom of the upper side plate or the top of the lower side plate; and the fastener penetrates through the first through hole and the second through hole. The battery pack for the two-wheeled vehicle is small in occupied space, low in cost and high in operation efficiency.

Description

Technical Field

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

[0002] The battery modules in the existing battery packs for two-wheeled vehicles usually stack the cells and then fill them with sealant, which results in a lot of material waste, high cost, unreliable structure and low safety. The positive lead-out sheet (the positive electrode for connecting to the outside world) and the negative lead-out sheet (the negative electrode for connecting to the outside world) are usually set on the side, resulting in a gap between the battery module and the side wall of the shell for covering the battery module, which will increase the volume of the battery pack for two-wheeled vehicles (the battery pack for two-wheeled vehicles includes the battery module and the shell), occupy a large space, and easily cause the battery module to shake in the shell.

[0003] Moreover, the shell of the existing battery pack for two-wheeled vehicles usually includes a shell body with an opening and a sealing plate that can cover the opening. The shell body is first wrapped around the battery module, and then the sealing plate is welded to the mouth of the shell body. Although this is relatively strong, the process is complicated and the efficiency is low. The high welding temperature also affects the battery module. The welding causes the outer surface of the shell to bulge and become uneven, affecting the appearance and use, and is inconvenient for disassembly and assembly. Utility Model Content

[0004] The utility model provides a new technical solution for an energy storage component, which can at least solve the problems in the prior art that a battery pack for a two-wheeled vehicle occupies a large space, has a high cost, has an uneven outer surface and has a low operating efficiency.

[0005] The utility model provides a battery pack for a two-wheeled vehicle, the battery pack for a two-wheeled vehicle comprising a housing and a battery module arranged in the housing.

[0006] The battery module comprises:

[0007] Two mounting plates, the two mounting plates are arranged vertically and spaced apart from each other in the horizontal direction, and corresponding mounting holes are formed on the sides of the two mounting plates;

[0008] A plurality of battery cells, the plurality of battery cells corresponding to the plurality of mounting holes, the battery cells being arranged in a horizontal direction and having both ends of the battery cells in a length direction respectively inserted into the two mounting holes of the two mounting plates;

[0009] A positive lead-out plate, the positive lead-out plate is arranged at the top of the mounting plate, and the positive lead-out plate is connected to the positive electrode of the battery cell;

[0010] A negative lead-out sheet, the negative lead-out sheet is arranged at the top of the mounting plate and is spaced apart from the positive lead-out sheet, the negative lead-out sheet is connected to the negative electrode of the battery cell,

[0011] The housing comprises:

[0012] A box body, the box body comprising a bottom plate and a lower side plate connected to the bottom plate, the lower side plate being arranged around the edge of the bottom plate and being located above the bottom plate, a first through hole being formed at the top of the side surface of the lower side plate, and the box body being capable of accommodating the battery module;

[0013] 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 connected to 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 bent from outside to inside is formed at the bottom of the upper side plate or the top of the lower side plate;

[0014] A fastener passes through the first through hole and the second through hole to tightly connect the upper side plate and the lower side plate.

[0015] Optionally, the battery module further includes:

[0016] A first thermally conductive adhesive layer is disposed between the mounting hole and the battery core.

[0017] Optionally, the battery module further comprises a plurality of connecting pieces, the connecting pieces are connected to the mounting plate, and the connecting pieces comprise:

[0018] A positive electrode connecting piece, the positive electrode connecting piece connecting the positive electrode of the battery cell and the positive electrode lead-out piece;

[0019] A negative electrode connecting piece, the negative electrode connecting piece connecting the negative electrode of the battery cell and the negative electrode lead-out piece;

[0020] At least one battery cell connecting sheet, wherein the battery cell connecting sheet connects the plurality of battery cells so that the plurality of battery cells are connected in series or in parallel.

[0021] Optionally, a first positioning hole is formed on the connecting sheet, and the battery module further includes:

[0022] a first positioning pin, wherein the first positioning hole is connected to the mounting plate through the first positioning pin;

[0023] A metal sheet, on which a second positioning hole is formed, and the metal sheet is connected to the connecting sheet;

[0024] a second positioning pin, the metal sheet being connected to the mounting plate via the second positioning pin;

[0025] A signal collection line is connected to the metal sheet.

[0026] Optionally, the battery module further includes:

[0027] A battery management system, the battery management system is connected to the signal acquisition line;

[0028] A plug connector is used to connect the positive electrode lead-out piece and the negative electrode lead-out piece.

[0029] Optionally, the battery module further includes:

[0030] Two insulating plates, the two insulating plates are respectively connected to the outer surfaces of the two mounting plates;

[0031] Plastic rivets, the insulating plate is connected to the mounting plate through the plastic rivets.

[0032] Optionally, the bottom of the upper side panel forms the folded edge, and the top of the lower side panel surrounds the bottom of the upper side panel.

[0033] Optionally, the top of the lower side panel forms the folded edge, and the bottom of the upper side panel surrounds the top of the lower side panel.

[0034] Optionally, the two-wheel vehicle battery pack further includes:

[0035] a second thermally conductive adhesive layer, the second thermally conductive adhesive layer being disposed between the bottom of the battery module and the upper surface of the bottom plate of the housing,

[0036] The size of the shell is adapted to the size of the battery module so that the shell can be closely attached to the side wall of the battery module.

[0037] Optionally, the battery management system is arranged on the top of the mounting plate, the connector is arranged above the mounting plate and spaced apart from the battery management system, and in the shell, the top plate protrudes upward at a position corresponding to the battery management system to accommodate the battery management system, and the top plate is formed with a connecting hole at a position corresponding to the connector, and the connector is inserted into the connecting hole.

[0038] According to the battery pack for a two-wheeled vehicle of the utility model, the battery pack for a two-wheeled vehicle comprises a housing and a battery module. The battery module is arranged in the housing, and the housing can better protect the battery module.

[0039] The battery module includes two mounting plates, a plurality of battery cells, a positive lead-out sheet, and a negative lead-out sheet. Two mounting plates with a plurality of mounting holes are horizontally spaced and arranged relative to each other, and a plurality of battery cells are inserted into the mounting holes of the two mounting plates, so that the battery cells can be easily installed, and the mounting plates are hard, so that there can be gaps between different battery cells. Compared with stacking battery cells and then fixing the battery cells with potting sealant, the battery module can withstand higher extrusion force, increase structural stability, improve safety, and avoid potting sealant, which causes excessive waste of sealant, can reduce costs, and is easy to operate and improves work efficiency.

[0040] The shell includes a box body and a box cover, the box body includes a bottom plate and a lower side plate arranged around the edge of the bottom plate, the box cover includes a top plate and an upper side plate arranged around the edge of the top plate, the top of the lower side plate or the bottom of the upper side plate is formed with a folded edge bent from outside to inside, the second through hole at the bottom of the side of the upper side plate is aligned with the first through hole at the bottom of the side of the lower side plate, so that the outer surface of the upper side plate is aligned with the outer surface of the lower plate, and 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. As a result, the outer surface of the shell is relatively flat, and the box cover and the box body are tightly connected and have high connection strength, the structure is stable, not easy to deform, can form a good protection for the battery module, and improve the working efficiency, and facilitate disassembly and assembly.

[0041] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0043] Figure 1 is a structural diagram of a battery pack for a two-wheeled vehicle according to an embodiment of the utility model;

[0044] Figure 2 yes Figure 1 A cross-sectional view of an upper portion of a battery pack for a two-wheeled vehicle;

[0045] Figure 3 is a structural diagram of a battery module according to an embodiment of the utility model;

[0046] Figure 4 is based on Figure 3 Another structural diagram of the battery module in FIG.

[0047] Figure 5 is a structural diagram of a battery module according to another embodiment of the utility model;

[0048] Figure 6is a structural diagram of a housing according to an embodiment of the utility model;

[0049] Figure 7 It is a structural diagram of a shell according to another embodiment of the utility model.

[0050] Reference numerals:

[0051] 10. Shell; 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;

[0052] 20. Battery module; 21. Battery cell; 22. Mounting plate; 221. Mounting hole; 231. Positive lead-out plate; 232. Negative lead-out plate; 241. Positive connecting plate; 242. Negative connecting plate; 243. Battery cell connecting plate; 251. Metal sheet; 252. Signal acquisition line; 261. Insulating plate; 262. Plastic rivet; 27. Battery management system; 28. Connector. DETAILED DESCRIPTION

[0053] Various exemplary embodiments of the present invention will now 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 invention.

[0054] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0055] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0056] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0057] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0058] The battery pack for a two-wheeled vehicle according to an embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0059] like Figure 1 Figure 2As shown, the battery pack for a two-wheeled vehicle of the present invention comprises a housing 10 and a battery module 20. The battery module 20 is disposed in the housing 10, and the housing 10 can better protect the battery module 20.

[0060] The battery module 20 according to the embodiment of the present utility model is described in detail below with reference to the accompanying drawings.

[0061] like Figures 3 to 5 As shown, the battery module 20 according to the embodiment of the present invention includes two mounting plates 22 , a plurality of battery cells 21 , a positive electrode lead-out sheet 231 and a negative electrode lead-out sheet 232 .

[0062] First, the two mounting plates 22 are described. The two mounting plates 22 are arranged vertically and spaced apart from each other in the horizontal direction. The side surfaces of the two mounting plates 22 are formed with mounting holes 221 corresponding to each other.

[0063] The two mounting plates 22 arranged opposite to each other (facing each other) can provide stable support, and corresponding mounting holes 221 are formed on the sides of the two mounting plates 22, that is, the mounting holes 221 of the two mounting plates 22 can be aligned.

[0064] Next, the plurality of battery cells 21 are described. The plurality of battery cells 21 correspond to the plurality of mounting holes 221 . The battery cells 21 are arranged in the horizontal direction and the two ends of the battery cells 21 in the length direction are respectively inserted into the two corresponding mounting holes 221 of the two mounting plates 22 .

[0065] like Figure 3 and Figure 4 As shown, the two ends of the battery cell 21 in the length direction are horizontally inserted into the two corresponding (aligned) mounting holes 221 of the two mounting plates 22. The battery cell 21 is easy to install, and the mounting plate 22 is hard, so that there are gaps between different battery cells 21. Compared with stacking the battery cells 21 and then fixing the battery cells 21 with potting sealant, the battery module 20 can withstand higher extrusion force, increase structural stability, improve safety, avoid potting sealant, waste too much sealant, reduce costs, and is easy to operate and improve work efficiency.

[0066] Finally, the positive lead-out tab 231 and the negative lead-out tab 232 are described. The positive lead-out tab 231 is disposed at the top of the mounting plate 22, and the positive lead-out tab 231 is connected to the positive electrode of the battery cell 21. The negative lead-out tab 232 is disposed at the top of the mounting plate 22 and is spaced apart from the positive lead-out tab 231, and the negative lead-out tab 232 is connected to the negative electrode of the battery cell 21.

[0067] The positive lead-out tab 231 and the negative lead-out tab 232 are both arranged at the top of the mounting plate 22, and there is a predetermined space between the top of the mounting plate 22 and the housing 10 (the battery module 20 is tightly connected to the housing 10 mainly through its bottom and side). Thus, it is possible to avoid the positive lead-out tab 231 and the negative lead-out tab 232 being arranged at the side, thereby causing a gap between the battery module 20 and the housing 10, thereby causing the volume of the two-wheeled vehicle battery pack to be too large, and to avoid the battery module 20 shaking in the housing 10.

[0068] In the above battery module 20, two mounting plates 22 with multiple mounting holes 221 are horizontally spaced apart and arranged relatively, and multiple battery cells 21 are inserted into the mounting holes 221 of the two mounting plates 22, so that the installation of the battery cells 21 is simple, and the mounting plates 22 are harder, so that there are gaps between different battery cells 21. Compared with stacking the battery cells 21 and then relying on potting sealant to fix the battery cells 21, the battery module 20 can withstand higher extrusion pressure, increase structural stability, improve safety, and avoid potting sealant, which causes excessive waste of sealant, thereby reducing costs, and is easy to operate and improves work efficiency.

[0069] The positive lead-out tab 231 and the negative lead-out tab 232 are both arranged at the top of the mounting plate 22. There is a predetermined space between the top of the mounting plate 22 and the shell 10. This can prevent the positive lead-out tab 231 and the negative lead-out tab 232 from being arranged on the side, thereby causing a gap between the battery module 20 and the shell 10, thereby causing the volume of the battery pack for a two-wheeled vehicle to be too large, and avoid the battery module 20 from shaking in the shell 10.

[0070] In some embodiments of the present invention, the battery module 20 further includes a first thermally conductive adhesive layer, and the first thermally conductive adhesive layer is disposed between the mounting hole 221 and the battery core 21 .

[0071] The battery core 21 is adhered to the mounting hole 221 of the mounting plate 22 through the first thermally conductive adhesive layer, so that the connection between the battery core 21 and the mounting plate 22 is more stable.

[0072] Moreover, the first thermally conductive adhesive layer can conduct heat, and the temperature of the battery core 21 can be conducted to the mounting plate 22 , thereby increasing the heat exchange area, improving the heat dissipation efficiency, and ensuring the stable operation of the battery core 21 .

[0073] In some embodiments of the utility model, the battery module 20 further includes a plurality of connecting pieces, the connecting pieces are connected to the mounting plate 22, and the connecting pieces include a positive connecting piece 241, a negative connecting piece 242, and at least one battery cell connecting piece 243. The positive connecting piece 241 connects the positive electrode of the battery cell 21 and the positive electrode lead-out piece 231. The negative connecting piece 242 connects the negative electrode of the battery cell 21 and the negative electrode lead-out piece 232. The battery cell connecting piece 243 connects the plurality of battery cells 21 so that the plurality of battery cells 21 are connected in series or in parallel.

[0074] like Figure 3 and Figure 4 As shown, multiple battery cells 21 are connected in series or in parallel through multiple battery cell connecting pieces 243, the positive electrodes of the battery cells 21 connected in series or in parallel and the positive electrode lead-out piece 231 are connected through the positive electrode connecting piece 241, and the negative electrode connecting piece 242 is connected to the negative electrodes of the battery cells 21 connected in series or in parallel and the negative electrode lead-out piece 232. Thus, multiple battery cells 21 can be easily connected in series or in parallel through the connecting pieces, and the positive electrodes and negative electrodes of multiple battery cells 21 connected in series or in parallel can be easily connected to the positive electrode lead-out piece 231 and the negative electrode lead-out piece 232, respectively.

[0075] Optionally, a first positioning hole is formed on the connecting sheet, and the battery module 20 further includes a first positioning pin, and the first positioning hole is connected to the mounting plate 22 via the first positioning pin.

[0076] The connection piece and the mounting plate 22 can be stably and easily connected by the positioning pins, the assembly efficiency is high, and automated assembly is easy to achieve.

[0077] Optionally, the connecting pieces are connected to the battery cells 21 by laser welding.

[0078] The conventional welding between the connecting piece and the battery core 21 adopts tin soldering, which has low welding efficiency and unreliable welding points. The utility model adopts laser welding, which can improve welding efficiency and improve welding quality.

[0079] In some embodiments of the present invention, the battery module 20 further includes a metal sheet 251, a second positioning pin and a signal collection line 252. A second positioning hole is formed on the metal sheet 251, and the metal sheet 251 is connected to the connecting sheet. The metal sheet 251 is connected to the mounting plate 22 through the second positioning pin. The signal collection line 252 is connected to the metal sheet 251.

[0080] As shown in Figure 3, the metal sheet 251 can be easily and stably set on the mounting plate 22 through the second positioning pin. The metal sheet 251 is connected to the connecting sheet, and the signal acquisition line 252 is connected to the metal sheet 251. The signal of the battery cell 21 can be stably output to a predetermined device (controller, battery management system 27, etc.) through the metal sheet 251 and the signal acquisition line 252.

[0081] In some embodiments of the present invention, the battery module 20 further includes a battery management system 27 and a connector 28. The battery management system 27 is connected to the signal acquisition line 252. The connector 28 is connected to the positive lead-out plate 231 and the negative lead-out plate 232.

[0082] like Figure 2 As shown, the signal acquisition line 252 is connected to the battery management system 27, and the battery management system 27 can better monitor, manage and maintain the battery cell 21. The plug connector 28 connects the positive lead-out piece 231 and the negative lead-out piece 232, and the battery module 20 can be easily connected to the outside world through the plug connector 28.

[0083] In some embodiments of the present invention, the battery module 20 further includes two insulating plates 261 , and the two insulating plates 261 are respectively connected to the outer surfaces of the two mounting plates 22 .

[0084] like Figure 5 As shown, the insulating plate 261 can provide better protection and electrical isolation for the mounting plate 22 and the battery cells 21 , and prevent the battery module 20 from leaking electricity.

[0085] Furthermore, the battery module 20 further includes a plastic rivet 262 , and the insulating plate 261 is connected to the mounting plate 22 via the plastic rivet 262 .

[0086] like Figure 5 As shown, the insulating plate 261 and the mounting plate 22 can be easily connected by the plastic rivets 262, with high assembly efficiency and good connection stability.

[0087] Below, the housing 10 according to the embodiment of the utility model is first described in detail with reference to the drawings.

[0088] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the housing 10 according to the embodiment of the present utility model includes a box body 14 and a box cover 11 .

[0089] First, the box 14 is described. The box 14 includes a bottom plate 142 and a lower side plate 141 connected to the bottom plate 142. The lower side plate 141 is arranged 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 of the lower side plate 141. The box 14 can accommodate the battery module 20.

[0090] like Figure 1 and Figure 2As shown, the bottom plate 142 and the lower side plate 141 disposed around 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.

[0091] Next, the box cover 11 is described. The box cover 11 covers the top of the box body 14, and 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 arranged around the edge of the top plate 111 and is located below the top plate 111, and the bottom of the side of the upper side plate 112 is formed with a second through hole corresponding to the first through hole, the bottom of the upper side plate 112 overlaps with the top of the lower side plate 141, and the bottom of the upper side plate 112 or the top of the lower side plate 141 is formed with a folded edge bent from outside to inside.

[0092] like Figure 1 and Figure 2 As shown, the top plate 111 and the lower side plate 141 arranged around the top plate 111 and located below the top plate 111 constitute the box cover 11, and the box cover 11 covers the top of the box body 14.

[0093] The bottom of the upper side plate 112 is formed with a folded edge (a first folded edge 1121, as shown in FIG. Figure 2 and Figure 6 As shown), or the top of the lower side plate 141 is formed with a folded edge (second folded edge 1411, as shown) bent from the outside to the inside. Figure 7 shown).

[0094] A second through hole corresponding to the first through hole is formed at the bottom of the side surface of the upper plate 112 , that is, when the bottom of the upper plate 112 overlaps with the top of the lower plate 141 , the first through hole and the second through hole can be aligned.

[0095] Next, 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 plate 112 and the lower plate 141.

[0096] The fastener 13 may be a bolt, an expansion screw, etc. When the second through hole of the upper plate 112 is aligned with the first through hole of the lower plate 141 , the fastener 13 passes through the first through hole and the second through hole, so that the upper plate 112 and the lower plate 141 are fastened and connected.

[0097] The above shell 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. The top of the lower side plate 141 or the bottom of the upper side plate 112 is formed with a folded edge bent from the outside to the inside. The second through hole at the bottom of the side of the upper side plate 112 is aligned with the first through hole at the bottom of the side of the lower side plate 141, so that the outer surface of the upper side plate 112 is aligned with the outer surface of the lower plate. 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. As a result, the outer surface of the shell 10 is relatively flat, and the box cover 11 and the box body 14 are tightly connected and have high connection strength. The structure is stable and not easy to deform. It can form a good protection for the battery module 20, improve the working efficiency, and facilitate disassembly and assembly.

[0098] In some embodiments of the present invention, the structures of the shell 10 forming the folded edge include two types.

[0099] In the first structure, the bottom of the upper side plate 112 forms a folded edge, and the top of the lower side plate 141 surrounds the bottom of the upper side plate 112 .

[0100] like Figure 2 and Figure 6 As shown, the bottom of the upper side plate 112 is bent to form a folded edge (first folded edge 1121 ), 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 in the top of the lower side plate 141 .

[0101] In the second structure, the top of the lower side plate 141 forms a folded edge, and the bottom of the upper side plate 112 surrounds the top of the lower side plate 141.

[0102] like Figure 7 As shown, the top of the lower side plate 141 is bent to form a folded edge (second folded edge 1411 ), and the bottom of the upper side plate 112 surrounds the top of the lower side plate 141 , that is, the top of the lower side plate 141 is embedded in the bottom of the upper side plate 112 .

[0103] The above two structures can make the outer surface of the shell 10 flat and avoid relative movement between the box cover 11 and the box body 14, so that the connection between the box cover 11 and the box body 14 is stable.

[0104] In some embodiments of the present invention, the first through hole, the second through hole and the fastener 13 each include a plurality of fasteners arranged at intervals.

[0105] like Figure 1 As shown, multiple first through holes are set around the upper side plate 112, and multiple second through holes are set around the lower side plate 141. Multiple fasteners 13 are inserted into the multiple first through holes and the multiple second through holes one by one, so that the box cover 11 and the box body 14 are connected more tightly.

[0106] Further, 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.

[0107] The first through hole and the second through hole are threadedly connected by a bolt, and the upper plate 112 and the lower plate 141 can be tightly connected by rotating the bolt. Thus, the housing 10 can be easily assembled and disassembled.

[0108] In some embodiments of the present invention, the housing 10 further includes a handle 12 . The handle 12 is disposed on the upper surface of the top plate 111 .

[0109] like Figure 1 As shown, a handle 12 is provided on the top plate 111 of the box cover 11 to facilitate the taking, placing and moving of the housing 10 .

[0110] In some embodiments of the utility model, the battery pack for a two-wheeled vehicle further includes a second thermally 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 second thermally conductive adhesive layer is a known material and will not be described in detail here, such as thermal conductive silicone grease.

[0111] Usually, the battery module 20 is integrally encapsulated with sealant between the shell 10, which results in a lot of material waste and high cost. In the present invention, a second thermally 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 shell 10 and the battery module 20, so that the battery module 20 can be stably adhered to the shell 10, and the heat of the battery module 20 can also be transferred to the shell 10 through the second thermally conductive adhesive layer, and the battery module 20 is dissipated through the shell 10, so that the operation of the battery module 20 is more stable.

[0112] Furthermore, the size of the housing 10 is adapted to the size of the battery module 20 , so that the housing 10 can be closely attached to the side wall of the battery module 20 .

[0113] The side wall of the housing 10 is interference-fitted with the side wall of the battery module 20 to prevent the battery module 20 from shaking in the horizontal direction, thereby improving the stability of the battery pack for a two-wheeled vehicle.

[0114] In some embodiments of the present invention, the battery management system 27 is disposed on the top of the mounting plate 22. The plug connector 28 is disposed above the mounting plate 22 and is spaced apart from the battery management system 27. In the housing 10, the top plate 111 protrudes upward at a position corresponding to the battery management system 27 to accommodate the battery management system 27, and the top plate 111 is formed with a connection hole at a position corresponding to the plug connector 28, and the plug connector 28 is inserted into the connection hole.

[0115] like Figure 2As shown, the housing 10 protrudes upward to accommodate the battery management system 27, thereby better protecting the battery management system 27. The connector 28 is inserted into the connection hole of the top plate 111, and the top plate 111 can better fix the connector 28, so that the connector 28 can be connected to the outside world.

[0116] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A battery pack for a two-wheeled vehicle, characterized in that: The battery pack for a two-wheeled vehicle comprises a housing (10) and a battery module (20) arranged in the housing (10). The battery module (20) comprises: Two mounting plates (22), the two mounting plates (22) being arranged vertically and spaced apart from each other in a horizontal direction and arranged opposite to each other, and corresponding mounting holes (221) being formed on the sides of the two mounting plates (22); A plurality of battery cells (21), the plurality of battery cells (21) corresponding to the plurality of mounting holes (221), the battery cells (21) being arranged in a horizontal direction and having two ends in a length direction thereof respectively inserted into two mounting holes (221) of two mounting plates (22); A positive electrode lead-out sheet (231), the positive electrode lead-out sheet (231) being arranged at the top end of the mounting plate (22), the positive electrode lead-out sheet (231) being connected to the positive electrode of the battery cell (21); a negative electrode lead-out sheet (232), the negative electrode lead-out sheet (232) being arranged at the top end of the mounting plate (22) and spaced apart from the positive electrode lead-out sheet (231), the negative electrode lead-out sheet (232) being connected to the negative electrode of the battery cell (21), The housing (10) comprises: 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 the 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 battery pack for a two-wheeled vehicle according to claim 1, characterized in that: The battery module (20) further comprises: A first thermally conductive adhesive layer, wherein the first thermally conductive adhesive layer is arranged between the mounting hole (221) and the battery core (21).

3. The battery pack for a two-wheeled vehicle according to claim 1, characterized in that: The battery module (20) further comprises a plurality of connecting pieces, wherein the connecting pieces are connected to the mounting plate (22), and the connecting pieces comprise: A positive electrode connecting sheet (241), the positive electrode connecting sheet (241) connecting the positive electrode of the battery cell (21) and the positive electrode lead-out sheet (231); A negative electrode connecting piece (242), wherein the negative electrode connecting piece (242) connects the negative electrode of the battery cell (21) and the negative electrode lead-out piece (232); At least one battery cell connecting sheet (243), wherein the battery cell connecting sheet (243) connects the plurality of battery cells (21) so that the plurality of battery cells (21) are connected in series or in parallel.

4. The battery pack for a two-wheeled vehicle according to claim 3, characterized in that: A first positioning hole is formed on the connecting piece, and the battery module (20) further comprises: A first positioning pin, wherein the first positioning hole is connected to the mounting plate (22) via the first positioning pin; A metal sheet (251), a second positioning hole being formed on the metal sheet (251), and the metal sheet (251) being connected to the connecting sheet; A second positioning pin, the metal sheet (251) being connected to the mounting plate (22) via the second positioning pin; A signal collection line (252), wherein the signal collection line (252) is connected to the metal sheet (251).

5. The battery pack for a two-wheeled vehicle according to claim 4, characterized in that: The battery module (20) further comprises: A battery management system (27), the battery management system (27) being connected to the signal acquisition line (252); A plug connector (28), wherein the plug connector (28) connects the positive electrode lead-out piece (231) and the negative electrode lead-out piece (232).

6. The battery pack for a two-wheeled vehicle according to claim 1, characterized in that: The battery module (20) further comprises: Two insulating plates (261), the two insulating plates (261) being respectively connected to outer surfaces of the two mounting plates (22); A plastic rivet (262), wherein the insulating plate (261) is connected to the mounting plate (22) via the plastic rivet (262).

7. The battery pack for a two-wheeled vehicle 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).

8. The battery pack for a two-wheeled vehicle 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).

9. The battery pack for a two-wheeled vehicle according to claim 1, characterized in that: The battery pack for a two-wheeled vehicle further comprises: a second thermally conductive adhesive layer, the second thermally conductive adhesive layer being arranged between the bottom of the battery module (20) and the upper surface of the bottom plate (142) of the housing (10), 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 for a two-wheeled vehicle according to claim 5, characterized in that: The battery management system (27) is arranged on the top of the mounting plate (22), the plug connector (28) is arranged above the mounting plate (22) and is spaced apart from the battery management system (27), in the housing (10), the top plate (111) protrudes upward at a position corresponding to the battery management system (27) to accommodate the battery management system (27), and the top plate (111) is formed with a connection hole at a position corresponding to the plug connector (28), and the plug connector (28) is inserted into the connection hole.

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