Rapid module positioning mechanism and battery pack

Abstract

The utility model relates to a battery pack, and discloses a module rapid positioning mechanism and a battery pack, the module rapid positioning mechanism comprises at least one positioning nut (2) fixed at the bottom of a battery pack box body (1), the positioning nut (2) comprises a positioning seat (201) and a positioning pipe (202) which is arranged at the upper part of the positioning seat (201) and can be inserted into a bolt hole (301) of a battery module (3), and a threaded hole (203) which is coaxial with the positioning pipe (202) and is in threaded connection with a bolt (302) penetrating through the battery module (3) is formed in the middle of the positioning seat (201). According to the utility model, the rapid positioning of the battery module (3) in the boxing process can be realized, the manual operation is reduced, the process requirement is reduced, meanwhile, the direct shearing force on the fixed bolt (302) caused by the displacement of the module can be prevented in various mechanical working conditions of the battery, and the mechanical safety is effectively improved.

Description

Technical Field

[0001] The utility model relates to a battery pack, in particular to a module rapid positioning mechanism and a battery pack. Background Art

[0002] With the rapid development of the country's new energy industry, energy storage and power battery technologies are updating rapidly, and battery pack structures are constantly being optimized.

[0003] When installing the battery module in the battery pack structure into the battery pack box, bolts are usually passed through the module bolt holes and then connected and fixed with ordinary welding nuts or tapped bottom holes of the box. This method has problems such as difficulty in positioning and difficulty in bolt installation. In addition, there is a safety hazard that the module will directly apply shear force to the bolt rod during the expansion process of the module. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art battery packs and provides a battery pack and a module rapid positioning mechanism thereof.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] A module rapid positioning mechanism includes at least one positioning nut fixed to the bottom of a battery pack case. The positioning nut includes a positioning seat and a positioning tube arranged on the upper part of the positioning seat and capable of being inserted into the bolt hole of the battery module. A threaded hole is provided in the middle of the positioning seat, which is coaxial with the positioning tube and is used for threaded connection with a bolt passing through the battery module.

[0007] Preferably, the positioning seat is in the shape of a rectangular block, and the positioning tube is welded to the upper end surface of the positioning seat. The rectangular block-shaped positioning seat can better cooperate with the base to prevent it from rotating and affecting the installation stability.

[0008] Preferably, the battery module further comprises a base, which is in the shape of an elongated strip and is provided with a plurality of positioning nuts evenly spaced apart. The plurality of positioning nuts are used to fix the battery module, thereby enhancing the installation stability and positioning accuracy of the battery module.

[0009] Preferably, the base is constructed as a U-shaped base with a downward opening and a U-shaped cross-section. The U-shaped base includes an upper end wall and two side walls. The upper end wall is provided with a mounting hole for the positioning tube to pass through. The positioning base is disposed within the U-shaped groove of the U-shaped base, and the lower end surface of the positioning base is flush with the lower end surfaces of the side walls. The structural form of the base and its installation cooperation with the positioning nut ensure the installation stability of the positioning nut and the installation efficiency of multiple positioning nuts.

[0010] Preferably, multiple latches extend downwardly and spaced apart along the length of the lower end surfaces of both side walls, with the latches on the two side walls positioned opposite each other. A long, strip-shaped latching slot is provided on the bottom surface of the battery pack housing, engaging with the latches. The engagement of the latches and the slots allows for quick installation of the base on the bottom surface of the housing.

[0011] A battery pack includes a battery pack case and a battery module arranged in the battery pack case, and also includes the aforementioned module quick positioning mechanism. Bolt holes are provided at both ends of the battery module. Bolts are passed through the bolt holes, with both ends extending out of the bolt holes. When the bolts are threaded in the threaded holes, the positioning tubes are inserted into the bolt holes.

[0012] Preferably, the positioning tube and the bolt hole are clearance-matched, thereby facilitating subsequent separation of the positioning tube and the bolt hole.

[0013] Preferably, an L-shaped escape groove is provided at the bottom of the battery module and opposite to the bolt hole. The cooperation between the escape groove and the base can enhance the rapid positioning of the battery module and ensure the stability of the battery module installation.

[0014] The utility model has significant technical effects due to the adoption of the above technical solutions:

[0015] The utility model can realize the rapid positioning of the battery module during the process of being put into the box, reduce manual operations, and lower process requirements. At the same time, it can prevent direct shear force on the fixing bolts caused by module displacement in various mechanical working conditions of the battery, and effectively improve mechanical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the module rapid positioning mechanism in Example 1.

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure of the positioning nut.

[0018] Figure 3 It is a schematic diagram of the assembly structure of the battery pack in Example 1.

[0019] Figure 4 yes Figure 3 sectional view of .

[0020] Figure 5 yes Figure 4 Enlarged view of part A. DETAILED DESCRIPTION

[0021] The present invention is described in further detail below with reference to the accompanying drawings and embodiments.

[0022] Example 1

[0023] A module rapid positioning mechanism, such as Figure 1-Figure 5 As shown, it includes at least one positioning nut 2 fixed on the bottom of the battery pack body 1, the positioning nut 2 includes a positioning seat 201 and a positioning tube 202 arranged on the upper part of the positioning seat 201 and capable of being inserted into the bolt hole 301 of the battery module 3, and a threaded hole 203 is provided in the middle of the positioning seat 201 coaxially with the positioning tube 202 for threaded connection with the bolt 302 passing through the battery module 3.

[0024] This embodiment also includes a base 4, which is in the shape of an elongated strip and is provided with a plurality of positioning nuts 2 evenly spaced. In this embodiment, three positioning nuts 2 are provided on one base 4, and a base 4 is provided on each side of the battery module 3. The base 4 is constructed as a U-shaped seat with a downward opening and a U-shaped cross-section. The U-shaped seat includes an upper end wall 401 and two side walls 402. The upper end wall 401 is provided with a mounting hole 404 for the positioning tube 202 to pass through. The positioning seat 201 is arranged in the U-shaped groove of the U-shaped seat and the lower end surface of the positioning seat 201 is flush with the lower end surface of the side wall 402.

[0025] The base 4 is used to fix and install multiple positioning nuts 2, which can better achieve the synchronous fixation of multiple positioning nuts 2 relative to the bottom surface of the battery pack box 1, and can ensure the position accuracy of the positioning nuts 2, providing a positioning prerequisite for the subsequent connection of the bolts 302.

[0026] At the same time, the base 4 itself can also play a role in positioning the battery module 3. It is provided with an L-shaped avoidance groove 303 at the bottom of the battery module 3 and opposite to the bolt hole 301, so that the battery module 3 can be seated on the base 4 and initially positioned through the cooperation between the base 4 and the avoidance groove 303. Then, the bolt hole 301 on the battery module 3 is cooperated with the positioning tube 202, so that the positioning tube 202 is extended into the bolt hole 301 on the battery module 3 to achieve precise positioning of the battery module 3. The final bolt 302 can be inserted through the bolt hole 301 of the battery module 3 and accurately inserted into the positioning nut 2 at the bottom, and the top is pressed against the battery module 3 by the bolt 302 cap, so that the battery module 3 can be quickly installed in the battery pack box 1.

[0027] Moreover, since the positioning tube 202 is inserted into the bolt hole 301 of the battery module 3, the bolt 302 and the battery module 3 are separated by the positioning tube 202. When the battery module 3 expands and displaces, it will not directly act on the bolt 302, thereby avoiding the safety hazard of the battery module 3 directly applying shear force to the bolt 302 rod.

[0028] The positioning seat 201 is in a rectangular block shape, the positioning pipe 202 is welded on the upper end face of the positioning seat 201, the rectangular block-shaped positioning seat 201 can better cooperate with the U-shaped groove of the base 4, the rotation of the positioning seat 201 is avoided, and the stability of the threaded connection between the positioning seat 201 and the bolt 302 is ensured.

[0029] The lower end faces of the two side walls 402 of the base 4 are sequentially and spaced downward along the length direction, and a plurality of clamping blocks 403 are arranged on the lower end faces of the two side walls 402, and the clamping blocks 403 on the two side walls 402 are oppositely arranged. The bottom surface of the battery pack box body 1 is provided with a clamping groove matched with the clamping blocks 403, and the base 4 is clamped into the clamping groove through the clamping blocks 403 to realize the fixation of the base 4 on the bottom surface of the battery pack box body 1. After the base 4 is fixed, the lower end face of the base 4 is flush with the lower end face of the positioning seat 201, so that the positioning seat 201 can be pressed tightly on the bottom surface of the battery pack box body 1, thereby realizing the fixation of the positioning seat 201. This assembly and fixation method is simple and convenient, and can conveniently realize the disassembly, replacement and the like of the positioning mechanism and the box body and each component of the positioning mechanism. Of course, in order to further provide fixation stability, each component can also be directly fixed by welding.

[0030] In the embodiment, a battery pack is provided, which comprises a battery pack box body 1 and a battery module 3 arranged in the battery pack box body 1, and further comprises the aforementioned quick positioning mechanism for the module. The battery module 3 is provided with three bolt holes 301 at two ends, the bolt holes 301 are provided with bolts 302 extending out of the bolt holes 301 at two ends, the bolts 302 pass through the bolt holes 301 and are threadedly connected to the threaded holes 203 at the bottom through the positioning pipes 202, and at this time, the positioning pipes 202 are inserted into the bolt holes 301 and are gap-fitted therebetween.

[0031] It is easy to understand that those skilled in the art can combine, split, recombine and the like on the basis of one or more embodiments provided in the application to obtain other embodiments, and these embodiments do not exceed the protection scope of the application.

[0032] In summary, the above only describes the preferred embodiments of the present application, and any changes and modifications made within the scope of the application should be included in the scope of the application.

Claims

1. A module rapid positioning mechanism, characterized by: The invention comprises at least one positioning nut (2) fixed to the bottom of a battery pack box (1), the positioning nut (2) comprising a positioning seat (201) and a positioning tube (202) arranged on the upper part of the positioning seat (201) and capable of being inserted into a bolt hole (301) of a battery module (3), and a threaded hole (203) coaxially arranged with the positioning tube (202) and used for threaded connection with a bolt (302) passing through the battery module (3) is provided in the middle of the positioning seat (201).

2. A module rapid positioning mechanism according to claim 1, characterized in that: The positioning seat (201) is in the shape of a rectangular block, and the positioning tube (202) is welded to the upper end surface of the positioning seat (201).

3. A module rapid positioning mechanism according to claim 1 or 2, characterized in that: It also includes a base (4), which is in the shape of an elongated strip and is provided with a plurality of positioning nuts (2) evenly spaced apart.

4. A module rapid positioning mechanism according to claim 3, characterized in that: The base (4) is constructed as a U-shaped seat with a downward opening and a U-shaped cross-section, the U-shaped seat comprising an upper end wall (401) and two side walls (402), the upper end wall (401) being provided with a mounting hole (404) for the positioning tube (202) to pass through, the positioning seat (201) being arranged in a U-shaped groove of the U-shaped seat, and the lower end surface of the positioning seat (201) being flush with the lower end surface of the side walls (402).

5. The module rapid positioning mechanism according to claim 4, characterized in that: A plurality of clamping blocks (403) are sequentially and spaced apart from each other and extend downwardly along the length direction on the lower end surfaces of the two side walls (402), and the clamping blocks (403) on the two side walls (402) are arranged opposite to each other.

6. A battery pack, comprising a battery pack case (1) and a battery module (3) arranged in the battery pack case (1), characterized in that: It also includes a module rapid positioning mechanism as described in any one of claims 1 to 5, wherein bolt holes (301) are provided at both ends of the battery module (3), and bolts (302) are passed through the bolt holes (301), with both ends extending out of the bolt holes (301), and when the bolts (302) are threadedly connected in the threaded holes (203), the positioning tube (202) is inserted into the bolt holes (301).

7. The battery pack according to claim 6, characterized in that: The positioning tube (202) and the bolt hole (301) are clearance-matched.

8. The battery pack according to claim 6, characterized in that: An avoidance groove (303) with an L-shaped cross section is provided at the bottom of the battery module (3) and at a position opposite to the bolt hole (301).

Images