Bushing structure of power battery box body

Abstract

The utility model provides a power battery box lining structure, which belongs to the technical field of power batteries and comprises a boundary beam body and a boundary beam hole arranged on the boundary beam body, a lining structure is arranged in the boundary beam hole and comprises a lining sleeve and a lining flange, the outer wall of the lining sleeve is tightly attached to the inner wall of the boundary beam hole, and the lining flange is arranged in the lining sleeve. The lower surface of the lining flange abuts against the profile surface of the upper surface of the boundary beam body, the lining flange is provided with a plurality of flange riveting areas, and each flange riveting area is internally provided with a rivet penetrating hole, through the connection structure, stable connection between the battery pack and the boundary beam is achieved, adhesive or welding materials do not need to be used, the connection structure is not prone to being affected by environmental factors, and the service life of the battery pack and the boundary beam is prolonged. The lining structure is simple in structure and good in high-temperature resistance, the degumming phenomenon possibly occurring in the high-temperature or humid environment is avoided, meanwhile, the problem of deformation caused by welding is also avoided, sufficient connection strength is guaranteed, the technical problem that a lining structure in the related technology is only suitable for gluing or welding is solved, and the lining structure has certain practical value.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the technical field of power battery, concretely is a kind of power battery box bush structure. BACKGROUND

[0002] Power battery refers to the battery that provides power for transportation tools, generally includes lithium ion battery, lead-acid battery, nickel-hydrogen battery etc., mainly applied to electric vehicle, electric bicycle, electric motorcycle and other new energy transportation tools, and some specific energy storage fields etc., battery composition mainly includes electrode, electrolyte, diaphragm, battery pack and battery management system.

[0003] With the rapid development of new energy vehicles, as one of core components, the safety and reliability of power battery are crucial, when existing battery pack is installed, bush structure is usually installed on power battery pack boundary beam, which can bear the clamping force of whole vehicle bolt in fixing process, avoids that whole vehicle bolt clamps battery pack boundary beam and deforms, and the structural connection of battery pack boundary beam bush and boundary beam becomes one of the hot issues of current research, the existing bush mounting structure is mostly in two forms of gluing and welding, however, the gluing type bush structure has the problem of insufficient connection strength, and welding connection can cause welding deformation of boundary beam and bush, impact normal use of boundary beam and bush, in the process of vehicle operation, battery pack can vibrate, and welding connection has the risk of welding cracking in vibration, has safety hazard, and welding connection has complex process and higher cost, is not conducive to the quantitative production of product. UTILITY MODEL CONTENTS

[0004] The utility model technical scheme is to the too single technical problem of prior art solution, provides the solution significantly different from prior art, and specifically the utility model mainly provides a kind of power battery box bush structure, to solve the technical problem that the existing bush mounting structure is mostly in two forms of gluing and welding in the prior art described above, and the glueing is prone to delamination in high temperature or humid environment, and welding can cause deformation.

[0005] The utility model solves the technical problem that the technical scheme adopted is as follows:

[0006] A kind of power battery box bush structure, including boundary beam body and the boundary beam hole configured on boundary beam body, the bush structure is arranged in the boundary beam hole, the bush structure includes bush sleeve and bush flange, the outer wall of bush sleeve is in close contact with the inner wall of boundary beam hole, the lower surface of bush flange is in abutment with the upper surface profile of boundary beam body, the bush flange is provided with multiple flange riveting zones, and each flange riveting zone is provided with rivet through hole.

[0007] Further, the shaft line position of the bushing structure is provided with a bolt through hole, and the bolt through hole penetrates the two end faces of the bushing structure, and is used for the bolt through of the whole vehicle battery pack.

[0008] Further, the bushing sleeve and the bushing flange are integrally formed structures.

[0009] And / or, the bushing sleeve and the bushing flange are welded.

[0010] Further, the bushing sleeve and the bushing flange are integrally formed structures.

[0011] Further, the bushing sleeve and the bushing flange are integrally formed structures.

[0012] Further, the bushing sleeve and the bushing flange are integrally formed structures.

[0013] Further, the bushing sleeve and the bushing flange are integrally formed structures.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The bushing sleeve, the bushing flange, the bolt through hole, the flange riveting area, the rivet through hole and the positioning piece are arranged, the stable connection between the battery pack and the beam is realized, the adhesive or the welding material is not needed, the connection strength is guaranteed, the integrated forming is realized, the structure is simple, the process requirement is not high, the installation speed is fast, the automatic production is suitable, the production cost and the time cost are reduced, the maintenance and replacement are convenient, the whole installation structure is not needed to be replaced, the maintenance cost is reduced, the technical problems that the bushing structure in the related technology is only suitable for the adhesion or the welding are solved, and the utility model has certain practical value.

[0016] The utility model will be explained in detail in combination with the drawings and specific embodiments. DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the whole structure exploded schematic diagram of the utility model;

[0019] Figure 3 It is the bushing structure top surface structure schematic diagram of the utility model;

[0020] Figure 4The utility model discloses a side beam body section schematic view.

[0021] Figure 5 The utility model discloses a bush structure bottom surface structure schematic view.

[0022] In the drawing: 1, side beam body, 11, side beam hole, 2, bush structure, 21, bush sleeve, 22, bush flange, 23, bolt through hole, 24, flange riveting area, 241, rivet through hole, 3, positioning piece. DETAILED DESCRIPTION

[0023] In order to facilitate understanding the utility model, below will be with reference to relevant drawings more comprehensive description of the utility model, the drawings show several embodiments of the utility model, but the utility model can be realized through different forms, and is not limited to the embodiments described in the text, on the contrary, provide these embodiments are for making the disclosed content of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, the terms used in the specification of the utility model are for the purpose of describing specific embodiments and are not intended to limit the utility model, the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Please refer to the drawings Figures 1-5 A power battery box bush structure, including side beam body 1 and the side beam hole 11 of the side beam body 1 on the configuration, the main material of side beam body 1 can adopt but is not limited to aluminum extrusion section bar or roll-pressed steel structure, the bush structure 2 is arranged in the side beam hole 11, the bush structure 2 includes bush sleeve 21 and bush flange 22, the outer wall of bush sleeve 21 is close to the inner wall of side beam hole 11, the lower surface of bush flange 22 and the upper surface profile of side beam body 1 abut, a plurality of flange riveting areas 24 are arranged on the bush flange 22, and the rivet through hole 241 is arranged in each flange riveting area 24.

[0027] By the above structure, stable connection between the battery pack and the side beam is realized without the use of adhesive or welding material, which is not easily affected by environmental factors, has good high-temperature resistance, avoids the possibility of delamination in high-temperature or humid environments, and also avoids the problem of deformation caused by welding, ensuring sufficient connection strength, and the structure is simple, the process requirement is not high, the installation speed is fast, suitable for automatic production, reduces the production cost and time cost, convenient for maintenance and replacement, without the need to replace the entire installation structure, reduces the maintenance cost, thereby improving the technical problem that the liner structure in the related technology is only suitable for gluing or welding, and has certain practical value.

[0028] High reliability: riveting structure is not easily affected by environmental factors;

[0029] Good high-temperature resistance: riveting structure does not require adhesive or welding material;

[0030] Convenient installation: riveting structure is simple, the process requirement is not high, the installation speed is fast, suitable for automatic production, reduces the production cost and time cost;

[0031] Environmental protection: riveting process does not require the use of adhesive or welding material;

[0032] Easy maintenance: the riveting structure is easy to disassemble and replace, etc.

[0033] Please refer to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 , the axis position of the liner structure 2 is provided with a bolt passing hole 23, and the bolt passing hole 23 penetrates through the two end faces of the liner structure 2, for the battery pack whole vehicle bolt to pass through, the liner sleeve 21 and the liner flange 22 are integrally formed structure; and / or, the liner sleeve 21 and the liner flange 22 are welded, preferably integrally formed structure, simple structure, low process requirement, convenient for operators to operate fixed connection, without separately designing a limiting structure to limit the liner structure 2, simplifying the design while reducing the design cost, reducing the production cost and time cost, a positioning piece 3 is arranged in each rivet passing hole 241, the positioning piece 3 is a rivet or a pull rivet, which can be selected but not limited to a rivet or a pull rivet, assembled and fixed through the reserved rivet passing hole 241, the outer wall of the liner sleeve 21 and the hole diameter of the side beam hole 11 are not greater than 0.3mm in assembly size, the rivet passing hole 241 and the positioning piece 3 are not greater than 0.3mm in assembly size, the rivet passing hole 241 is not less than 2, and the assembly thickness of the side beam body 1 and the liner flange 22 is greater than 2mm.

[0034] The utility model has carried out the exemplary description to the utility model in the above-mentioned combination drawing, obviously the utility model concrete realization is not limited by above-mentioned mode, only if the method conception and technical scheme of the utility model have been used to carry out this kind of non-essential improvement, or the conception and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A power battery box bushing structure, comprising a side beam body (1) and a side beam hole (11) arranged on the side beam body (1), a bushing structure (2) is arranged in the side beam hole (11), characterized in that, The bush structure (2) comprises a bush sleeve (21) and a bush flange (22), the outer wall of the bush sleeve (21) is tightly attached to the inner wall of the beam hole (11), the lower surface of the bush flange (22) is abutted to the upper surface profile of the beam body (1), a plurality of flange riveting areas (24) are arranged on the bush flange (22), and a rivet penetrating hole (241) is arranged in each flange riveting area (24).

2. The power battery box liner structure according to claim 1, characterized in that, The axis position of the bush structure (2) is provided with a bolt penetrating hole (23), and the bolt penetrating hole (23) penetrates through the two end surfaces of the bush structure (2) and is used for penetrating the battery pack vehicle bolt.

3. The power battery box liner structure of claim 1, wherein, The bush sleeve (21) and the bush flange (22) are an integral molding structure. And / or, the bush sleeve (21) and the bush flange (22) are welded.

4. The power battery box liner structure of claim 1, wherein, A positioning member (3) is arranged in each rivet penetrating hole (241), and the positioning member (3) is a rivet or a pull rivet.

5. The power battery box liner structure according to claim 3, characterized in that, The assembly size of the outer wall of the bush sleeve (21) and the beam hole (11) is not greater than 0.3 mm.

6. The power battery box liner structure of claim 4, wherein, The assembly size of the rivet penetrating hole (241) and the positioning member (3) is not greater than 0.3 mm.

7. The power battery box liner structure of claim 1, wherein, The assembly thickness of the beam body (1) and the bush flange (22) is greater than 2 mm.

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