Multi-section type lithium battery module locking assembly

Abstract

The utility model provides a multi-section type lithium battery module locking assembly which comprises a side fastening plate body, the locking assembly is a long threaded rod, one end of the long threaded rod is provided with a hexagonal limiting head, the other end of the long threaded rod is provided with a threaded head, and the end, provided with the threaded head, of the long threaded rod penetrates through a plurality of battery modules to be connected with nuts on the side faces of the battery modules in a sleeved mode. According to the utility model, a certain number of long threaded rods in the fastening module are used, the number of the long threaded rods depends on the distance between the through holes reserved in the battery cell fastening piece, the long threaded rods penetrate through the through holes reserved in the battery cell fastening piece one by one, a hexagon at one end of each long threaded rod is used as a sinking point for fixing, and the other end of each long threaded rod penetrates out of the last battery module and then is locked by a hexagon nut; by means of the fastening assembly, the multiple battery modules are simply and rapidly fixed, the traditional one-by-one locking and fixing mode of the multiple battery modules is improved, the material cost and the labor cost are reduced, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries and relates to a multi-section lithium battery module locking assembly. Background Art

[0002] One of the fundamental elements in e-bike design that determines its performance and functionality is the battery. Current e-bike battery designs are primarily categorized into several types: inner tube batteries, insert tube batteries, down tube batteries, and range extenders. These differ primarily in how the batteries are mounted; some manufacturers also mount the batteries on the back seat of the bicycle. However, there are generally only two methods for assembling the battery module. One method involves radially arranging the cells along the length of the battery. This method offers advantages such as simplified mold creation for the cell fasteners, fewer molds required, and less labor required for screw assembly, resulting in a relatively simple and cost-effective process. However, its disadvantage is the large space required for the battery module, which ultimately impacts the overall battery pack volume. The other method involves axially arranging the cells along the length of the battery. This method offers advantages such as reduced space requirements, allowing for a slender battery design that facilitates insertion into the bicycle tube without detracting from the overall aesthetics of the vehicle. However, its disadvantages are significant: it requires a large number of cell fasteners, complicates assembly, and increases manufacturing costs.

[0003] The selection of battery module design and battery installation method ultimately cannot avoid considering battery performance, aesthetics with the entire vehicle, installation ease, and price, in order to fully meet the user's requirements for the appearance and performance of the electric bicycle. In this environment, lightweight, miniaturized, and customized bicycle battery designs have become an inevitable trend. Utility Model Content

[0004] The purpose of the present invention is to provide a multi-cell lithium battery module locking assembly to solve the problems raised in the above background technology.

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

[0006] The multi-cell lithium battery module locking assembly includes a side fastening plate, a battery module, a hexagonal limit head and a top plate. The multi-cell lithium battery module is formed by multiple battery modules arranged axially in the direction of the battery length. The multiple battery modules are locked and fixed by four groups of locking assemblies. The locking assembly is a long tooth bar, one end of the long tooth bar is provided with a hexagonal limit head, and the other end of the long tooth bar is provided with a threaded head. The end of the long tooth bar with the threaded head passes through multiple battery modules and is connected to the nut on the side of the battery module.

[0007] In the above-mentioned multi-cell lithium battery module locking assembly, each battery module is provided with a plurality of through holes along the axial direction, and the long tooth bar passes through the through holes and is sleeved with a nut.

[0008] In the above-mentioned multi-cell lithium battery module locking assembly, both ends of the multi-cell lithium battery module are provided with side fastening plates, the outer surface of the side fastening plates is provided with a support seat, and the hexagonal limit head is pressed against the support seat.

[0009] In the above-mentioned multi-cell lithium battery module locking assembly, a top plate is provided on the top of the multi-cell lithium battery module, and a plurality of terminal blocks are provided on the top of the top plate.

[0010] Compared with the prior art, the advantages of the multi-cell lithium battery module locking assembly of the present invention are:

[0011] This application uses a certain number of long tooth bars in the fastening module. The number of long tooth bars depends on the spacing of the through holes reserved for the battery cell fasteners. The long tooth bars pass through the through holes reserved for the battery cell fasteners one by one, and the hexagon at one end of the long tooth bar is used as a sinking point for fixation. After the other end passes through the last battery module, it is locked with a hexagonal nut to achieve the effect of fixing multiple battery modules. Through this fastening assembly, multiple battery modules can be fixed simply and quickly, which improves the traditional method of locking and fixing multiple battery modules one by one, reduces material costs, labor costs, and improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the multi-cell lithium battery module locking assembly of the utility model.

[0013] Figure 2 This is a schematic diagram of the long tooth bar structure of the multi-cell lithium battery module locking assembly of the utility model.

[0014] In the figure, 1. Side fastening plate; 2. Battery module; 3. Hexagonal limit head; 4. Long tooth bar; 5. Support seat; 6. Threaded head; 7. Top plate; 8. Terminal seat. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] The multi-cell lithium battery module locking assembly includes a side fastening plate 1, a battery module 2, a hexagonal limit head 3 and a top plate 7. The multi-cell lithium battery module is formed by multiple battery modules 2 arranged axially in the length direction of the battery, and the multiple battery modules 2 are locked and fixed by four groups of locking assemblies. The locking assembly is a long tooth bar 4, one end of the long tooth bar 4 is provided with a hexagonal limit head 3, and the other end of the long tooth bar 4 is provided with a threaded head 6. The end of the long tooth bar 4 with the threaded head 6 passes through multiple battery modules 2 and is socketed with the nut on the side of the battery module 2.

[0017] like Figure 1 、 Figure 2As shown, the multi-cell lithium battery module locking assembly of the present invention is specifically, each battery module 2 is reserved with a plurality of through holes along the axial direction, and the long tooth bar 4 passes through the through hole and is sleeved with a nut.

[0018] like Figure 1 、 Figure 2 As shown, the utility model discloses a locking assembly for a multi-cell lithium battery module. Specifically, both ends of the multi-cell lithium battery module are provided with a side fastening plate 1, the outer surface of the side fastening plate 1 is provided with a support seat 5, and the hexagonal limit head 3 is pressed tightly on the support seat 5.

[0019] like Figure 1 、 Figure 2 As shown, the multi-cell lithium battery module locking assembly of the present invention, specifically, a top plate 7 is provided on the top of the multi-cell lithium battery module, and a plurality of terminal blocks 8 are provided on the top of the top plate 7.

[0020] Detailed description of the technical solution of the present invention: This technology is used in the fixing process of the battery module 2. When designing the battery, multiple battery modules 2 are arranged axially in the length direction of the battery. Each battery module 2 reserves several through holes along the axial direction for installing the long tooth bar 4 in the technology of the present invention. The multiple battery modules 2 are arranged and aligned in the axial direction so that the through holes on the battery modules 2 are aligned. Then the long tooth bar 4 is passed through the through holes on the multiple battery modules 2 in the axial direction in sequence, and the end extends out of the last battery module and is locked with a hexagonal nut to fix the multiple battery modules 2.

[0021] The connection method of each battery module 2 in this technology is mainly to reserve several through-holes in the middle of the module, and fix it with the hexagonal nuts at both ends of the tooth bar and the module. The tooth bar is a standard part that is customized and lengthened.

[0022] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art to which the present invention relates may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A multi-cell lithium battery module locking assembly, comprising a side fastening plate (1), a battery module (2), a hexagonal limit head (3) and a top plate (7), characterized in that: The multi-cell lithium battery module is formed by arranging a plurality of battery modules (2) axially in the length direction of the battery, and the plurality of battery modules (2) are locked and fixed by four sets of locking components, wherein the locking components are long tooth bars (4), one end of the long tooth bar (4) is provided with a hexagonal limit head (3), and the other end of the long tooth bar (4) is provided with a threaded head (6), and the end of the long tooth bar (4) with the threaded head (6) passes through the plurality of battery modules (2) and is sleeved with a nut on the side of the battery module (2).

2. The multi-cell lithium battery module locking assembly according to claim 1, characterized in that: Each battery module (2) has a plurality of through holes reserved in the axial direction, and the long tooth bar (4) passes through the through holes and is sleeved with a nut.

3. The multi-cell lithium battery module locking assembly according to claim 1, characterized in that: Both ends of the multi-cell lithium battery module are provided with side fastening plates (1), the outer surface of the side fastening plates (1) is provided with a support seat (5), and the hexagonal limit head (3) is pressed tightly on the support seat (5).

4. The multi-cell lithium battery module locking assembly according to claim 1, wherein: A top plate (7) is provided on the top of the multi-cell lithium battery module, and a plurality of terminal blocks (8) are provided on the top of the top plate (7).

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