Battery module and electric two-wheeled vehicle

Abstract

The utility model relates to the technical field of energy storage devices, and discloses a battery module and an electric two-wheeled vehicle, the battery module comprises a first support, a second support, a third support and a fourth support, the first support is provided with a fixing jack, a first polarity part of a battery cell can be inserted into the fixing jack, and the bottom of the fixing jack is provided with a welding through hole; the first circuit board is mounted on the first bracket and is provided with a dismounting through hole directly facing the welding through hole; and one end of the first confluence connecting sheet is fixedly connected with the first circuit board, the other end of the first confluence connecting sheet extends into the welding through hole to form a welding connecting part used for connecting the first polarity part, and the welding connecting part directly faces the dismounting through hole. According to the battery module and the electric two-wheeled vehicle disclosed by the utility model, the disassembly difficulty of the battery cell is reduced, and the disassembly efficiency of the battery cell is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage device technology, and in particular to a battery module and an electric two-wheeler. Background Technology

[0002] With the development of new energy sources and the continuous promotion of the concept of environmentally friendly travel, two-wheeled vehicles powered by batteries are becoming the choice of more and more people for travel.

[0003] Currently, battery modules for two-wheeled vehicles on the market generally include a casing, battery cells, a circuit board, and a busbar. The first end of the busbar is welded to the battery cell, and the second end is welded to the circuit board. The circuit board is assembled at the first end of the battery cell and obstructs the busbar. This means the connection between the busbar and the battery cell is blocked by the circuit board, requiring the circuit board to be removed before disassembling the connection between the first end of the busbar and the battery cell. This battery cell module presents the problem of cumbersome disassembly of the battery cells and the long disassembly time required.

[0004] In view of this, it is necessary to design a battery module and an electric two-wheeler to reduce the difficulty of disassembling the battery cells and improve the efficiency of battery cell disassembly.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0006] This invention provides a battery module and an electric two-wheeler, which reduces the difficulty of disassembling battery cells and improves the efficiency of battery cell disassembly.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A battery module, comprising:

[0009] The first bracket is provided with a fixed socket into which the first polarity part of the power core can be inserted, and the bottom of the fixed socket is provided with a welding through hole;

[0010] The first circuit board is mounted on the first bracket and is provided with a disassembly and assembly through hole facing the soldering through hole;

[0011] The first busbar connector has one end fixedly connected to the first circuit board, and the other end extends into the welding through hole to form a welding connection part for connecting the first polarity part. The welding connection part is directly opposite the disassembly through hole.

[0012] Optionally, the welded connection portion is formed with a protrusion that protrudes toward the first polarity portion;

[0013] Without external force, the protrusion at least partially enters the fixing hole.

[0014] Optionally, one end of the first bus connector is formed as a plug-in fixing part and plugged into the first circuit board;

[0015] At least two welded connection parts are arranged side by side at intervals, and each welded connection part is connected to the plug-in fixing part. Each welded connection part is provided with at least one protrusion.

[0016] Optionally, the diameter of the welding through hole is smaller than the diameter of the fixing insertion hole.

[0017] Optionally, the battery module further includes a second bracket, a second circuit board, and a second busbar connector, wherein the second bracket and the first bracket are symmetrically arranged in shape;

[0018] The second circuit board is mounted on the second bracket. One end of the second bus connector is connected to the second circuit board, and the other end extends into the fixing hole of the second bracket to connect to the second polarity part of the battery cell.

[0019] Optionally, the shape of the first bus connector piece is the same as the shape of the second bus connector piece.

[0020] Optionally, the first bracket is provided with a mounting slot, and the first circuit board is installed in the mounting slot;

[0021] The first circuit board does not protrude from the mounting slot.

[0022] Optionally, the ends of the first bracket and the second bracket are joined together, such that the fixing holes in the first bracket and the corresponding fixing holes in the second bracket are combined to form a receiving cavity for accommodating the battery cell.

[0023] Optionally, the battery module also includes a connecting rod;

[0024] A first bracket and a second bracket are combined to form a sub-module, and each sub-module is provided with a connection through hole;

[0025] The connecting rod is inserted into the connecting through hole to connect two adjacent modules.

[0026] An electric two-wheeled vehicle includes a battery module as described in any of the preceding claims.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The battery module and electric two-wheeler provided by this utility model feature a disassembly and assembly through-hole on the first circuit board, with the through-hole directly opposite the welding connection portion of the first busbar connector. This allows personnel or robots to disassemble the welding connection structure between the welding connection portion and the first polarity portion of the battery cell through the through-hole. In this embodiment, the battery module and electric two-wheeler can disassemble the connection structure between the battery cell and the first busbar without first removing the first circuit board, effectively reducing the difficulty of battery cell disassembly and improving disassembly efficiency.

[0029] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is an exploded view of the battery module provided in this embodiment of the utility model;

[0032] Figure 2 This is a top view of the cross-sectional structure of a battery module without battery cells provided in this embodiment of the present invention;

[0033] Figure 3 This is the book Figure 2 Enlarged schematic diagram of the middle structure at point A;

[0034] Figure 4 This is an exploded view of a battery module comprising five sub-modules, provided by an embodiment of the present invention.

[0035] Reference numerals: 1. First bracket; 101. Mounting groove; 11. Fixing socket; 12. Welding through hole; 2. First circuit board; 21. Disassembly and assembly through hole; 3. First busbar connector; 31. Welding connection part; 311. Protrusion; 32. Insertion fixing part; 4. Second bracket; 5. Second circuit board; 6. Second busbar connector; 7. Connecting rod; 10. Battery cell; 100. Module. Detailed Implementation

[0036] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended only as examples, not as limiting the scope of protection of this application.

[0037] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0038] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0039] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0040] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order between these entities or operations.

[0041] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0042] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0043] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0045] Example 1

[0046] In view of the aforementioned defects in existing battery modules, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively conducted research and innovation in order to create a solution to the defects in the existing technology and make the battery module more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value was finally created.

[0047] Please refer to Figures 1 to 4 This utility model provides a battery module, including a first bracket 1, a first circuit board 2, and a first busbar connector 3.

[0048] The first bracket 1 is provided with a fixing socket 11 for inserting the first polarity portion of the battery cell 10, and a welding through hole 12 is provided at the bottom of the fixing socket 11. The first circuit board 2 is mounted on the first bracket 1 and is provided with a disassembly through hole 21 facing the welding through hole 12. The first busbar connector 3 is fixedly connected to the first circuit board 2 at one end and extends into the welding through hole 12 at the other end to form a welding connection part 31 for connecting the first polarity portion, and the welding connection part 31 faces the disassembly through hole 21. In this embodiment, the first polarity portion of the battery cell 10 is inserted into the fixing socket 11 for positioning and fixing, and the connection part 31 of the first busbar connector 3 extends into the welding through hole 12 and is welded to connect the first polarity portion, thereby realizing the connection between the first circuit board 2 and the battery cell 10.

[0049] In this embodiment, the battery module has a disassembly / removal through-hole 21 on the first circuit board 2, with the through-hole 21 directly opposite the welding connection portion 31 of the first busbar connector 3. This allows disassembly personnel or robots to disassemble the welding connection structure between the welding connection portion 31 and the first polarity portion of the battery cell 10 through the through-hole 21. In this embodiment, disassembly workers can directly disassemble the welding connection structure between the welding connection portion 31 and the first polarity portion through the welding through-hole 12, without first removing the first circuit board 2. This effectively reduces the difficulty of disassembling the battery cell 10 and improves the disassembly efficiency. It should be noted that disassembling the welding connection portion 31 and the battery cell 10 means breaking and detaching the connection between the welding connection portion 31 and the battery cell 10, thus separating them.

[0050] It should also be noted that a single faulty cell 10 in the battery module can be removed and replaced with a good one, thus maintaining the normal output capability of the battery module. Furthermore, the first circuit board 2 does not need to be removed during the removal of cell 10, achieving the purpose of cell 10 disassembly and replacement. It should also be further noted that during assembly, the welding connection between the welding joint 31 and the cell 10 can be achieved by disassembling and reassembling the through hole 21.

[0051] In this embodiment, the welding head of the welding device passes sequentially through the disassembly through hole 21 and the welding through hole 12, thereby realizing the welding of the welding connection part 31 and the battery cell 10, or disassembling the connection structure of the welding connection part 31 and the battery cell 10.

[0052] Optionally, the welding connection portion 31 forms a protrusion 311 that protrudes towards the first polarity portion; without external force, the protrusion 311 at least partially enters the fixed socket 11. In this embodiment, the first busbar 3 is L-shaped, including a vertical arm portion connected to the first circuit board 2 and a horizontal arm portion for connecting the first polarity portion. The protrusion 311 is located on the horizontal arm portion, and the horizontal arm portion connects to the vertical arm portion to form an elastic structure, thereby allowing the protrusion 311 to be held pressed against the first polarity portion, making the welding work between the protrusion 311 and the first polarity portion simpler.

[0053] Optionally, one end of the first busbar connector 3 forms a plug-in fixing part 32 for plug-in connection with the first circuit board 2; at least two soldering connection parts 31 are arranged side by side at intervals, and each soldering connection part 31 is connected to the plug-in fixing part 32, and each soldering connection part 31 is provided with at least one protrusion 311. In this embodiment, by providing at least two soldering connection parts 31, the connection stability and connection reliability between the first busbar connector 3 and the first polarity part are improved.

[0054] Optionally, the diameter of the welding through hole 12 is smaller than the diameter of the fixing socket 11, forming a positioning structure for one end of the battery cell 10. At this time, the top of the battery cell 10 is inserted into the fixing socket 11 and stopped by the bottom wall of the fixing socket 11, thereby realizing the rapid and accurate assembly of the battery cell 10.

[0055] Optionally, the battery module further includes a second bracket 4, a second circuit board 5, and a second busbar connector 6. The second bracket 4 and the first bracket 1 are symmetrically arranged. The second circuit board 5 is mounted on the second bracket 4. One end of the second busbar connector 6 is connected to the second circuit board 5, and the other end extends into the fixing hole 11 of the second bracket 4 to connect to the second polarity portion of the battery cell 10. In this embodiment, one end of the battery cell 10 is fixed in the fixing hole 11 of the first bracket 1, and the other end is fixed in the fixing hole 11 of the second bracket 4.

[0056] Optionally, the shape of the first bus connector 3 is the same as the shape of the second bus connector 6.

[0057] Optionally, the first bracket 1 is provided with a mounting groove 101, and the first circuit board 2 is installed in the mounting groove 101. The first circuit board 2 does not protrude from the mounting groove 101, so that the first circuit board 2 will not be pressed by other components, thereby improving the service life of the first circuit board 2. In addition, the mounting groove 101 can position the first circuit board 2, reducing the installation difficulty of the first circuit board 2.

[0058] Optionally, such as Figure 2 The ends of the first bracket 1 and the second bracket 4 are joined together, so that the fixing hole 11 in the first bracket 1 and the corresponding fixing hole 11 in the second bracket 4 are combined to form a receiving cavity for accommodating the battery cell 10.

[0059] Optionally, the battery module further includes a connecting rod 7; a first bracket 1 and a second bracket 4 are combined to form a sub-module 100, each sub-module 100 being provided with a connecting through hole; the connecting rod 7 is inserted into the connecting through hole to connect two adjacent sub-modules 100. In this embodiment, multiple sub-modules are sequentially inserted into the connecting rod 7, thereby arranging the multiple sub-modules sequentially along the connecting rod 7 to form a battery module with multiple sub-modules. Preferably, an upper pressure plate is connected to the top end of the connecting rod 7, and a bottom plate is connected to the top end of the connecting rod 7.

[0060] Example 2

[0061] This embodiment discloses an electric two-wheeled vehicle, including a battery module as described in any of the preceding embodiments.

[0062] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A battery module, characterized in that, include: The first bracket (1) is provided with a fixed insertion hole (11) into which the first polar part of the power core (10) can be inserted, and the bottom of the fixed insertion hole (11) is provided with a welding through hole (12). The first circuit board (2) is mounted on the first bracket (1) and is provided with a disassembly and assembly through hole (21) facing the welding through hole (12); The first bus connector (3) is fixedly connected to the first circuit board (2) at one end and extends into the welding through hole (12) at the other end to form a welding connection part (31) for connecting the first polar part. The welding connection part (31) is directly opposite the disassembly through hole (21).

2. The battery module according to claim 1, characterized in that, The welded connection (31) has a protrusion (311) that protrudes toward the first polar part; Without external force, the protrusion (311) at least partially enters the fixed insertion hole (11).

3. The battery module according to claim 2, characterized in that, One end of the first busbar connector (3) forms a plug-in fixing part (32) which is plugged into and connected to the first circuit board (2); At least two welding connection parts (31) are arranged side by side at intervals, and each welding connection part (31) is connected to the plug-in fixing part (32). Each welding connection part (31) is provided with at least one protrusion (311).

4. The battery module according to claim 1, characterized in that, The diameter of the welding through hole (12) is smaller than the diameter of the fixed insertion hole (11).

5. The battery module according to claim 1, characterized in that, It also includes a second bracket (4), a second circuit board (5), and a second busbar connector (6), wherein the second bracket (4) and the first bracket (1) are symmetrically arranged in shape; The second circuit board (5) is mounted on the second bracket (4). One end of the second bus connector (6) is connected to the second circuit board (5), and the other end extends into the fixing socket (11) of the second bracket (4) to connect to the second polarity part of the battery cell (10).

6. The battery module according to claim 5, characterized in that, The shape of the first bus connector (3) is the same as the shape of the second bus connector (6).

7. The battery module according to claim 1, characterized in that, The first bracket (1) is provided with a mounting groove (101), and the first circuit board (2) is installed in the mounting groove (101); The first circuit board (2) does not protrude from the mounting groove (101).

8. The battery module according to claim 5, characterized in that, The ends of the first bracket (1) and the second bracket (4) are joined together, so that the fixing hole (11) in the first bracket (1) and the corresponding fixing hole (11) in the second bracket (4) are combined to form a receiving cavity for accommodating the battery cell (10).

9. The battery module according to claim 5, characterized in that, It also includes a connecting rod (7); A first bracket (1) and a second bracket (4) are combined to form a sub-module (100), and each sub-module (100) is provided with a connecting through hole; The connecting rod (7) is inserted into the connecting through hole to connect two adjacent modules (100).

10. An electric two-wheeled vehicle, characterized in that, It includes a battery module as described in any one of claims 1 to 9.

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