Battery box structure with modular solderless characteristics

CN224774062UActive Publication Date: 2026-09-18QIMAO PRECISION TECHNOLOGY (HUIZHOU) CO LTD
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Patent Information

Application Number
CN202522207308.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-20
Publication Date
2026-09-18
Estimated Expiration
2035-10-20

AI Technical Summary

Technical Problem

为此,本实用新型的主要目的在于提供一种具备模组化无焊接特性的电池箱结构,旨在解决现有技术中的电池箱体结构制作及装配过程繁琐,各板体无法替代,物料浪费严重的问题

Benefits of technology

本方案通过其模组化无焊接设计,有效解决了传统电池箱体制作繁琐、板体无法替代和物料浪费严重的问题。结构利用左框板和右框板顶端与底端的插槽,与顶框板和底框板两端连接插板上的插接头精准插接,再通过第一固定孔、第二固定孔与插槽侧面的第一装配孔、第二装配孔对齐固定,同时连接插板顶部的第三固定孔也与顶框板、底框板紧固,最终前框板和背框板通过其侧边孔位与左、右框板的侧板孔连接,从而完成整个箱体的快速拼装。这一系列连接方式彻底避免了焊接和大型弯折工艺,使得各板体可以作为独立模块进行高精度生产,极大降低了因尺寸误差导致的合拢困难与废品率;在仓储运输时板体可层叠存放,节约空间;现场装配简便高效,且在单一板体损坏时可独立更换,显著提升了维护便利性与材料利用率,实现了制作效率与经济效益的双重提升。

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Abstract

This utility model discloses a modular, weld-free battery box structure, comprising a main body formed by a front frame plate, a back frame plate, a left frame plate, a right frame plate, a top frame plate, and a bottom frame plate. The front and back frame plates are positioned opposite each other, with the left and right frame plates located on either side of the front and back frame plates, respectively. The top and bottom frame plates are positioned opposite each other at the top and bottom of the front and back frame plates. Slots are formed at the top and bottom ends of the left and right frame plates, and connecting plates are provided at both ends of the top and bottom frame plates. First and second fixing holes are provided on both sides of the connecting plates, respectively. Below the first and second fixing holes, two connectors corresponding to the slots on both sides are formed. This utility model solves the problems of cumbersome manufacturing and assembly processes, irreplaceable plates, and significant material waste in existing battery box structures.
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Description

Technical Field

[0001] This utility model relates to the field of box structure, and in particular to a battery box structure with modular and weld-free characteristics. Background Technology

[0002] A battery box is a housing used to encapsulate battery packs and is often used in large indoor and outdoor energy storage devices.

[0003] Current battery boxes are mainly rectangular boxes assembled from six welded or bent panels. Welding easily leads to dimensional errors in the panels, often resulting in the subsequent panels not fitting together properly or having extra edges after two panels are welded, requiring scrapping or reprocessing. On the other hand, the one-piece bending method requires large bending equipment and is extremely dependent on bending precision.

[0004] In view of the low efficiency of the above two battery box assembly methods, this technical solution proposes a modular, weld-free battery box structure. It adopts modular assembly of each panel, with slots on both sides of the panels. Rapid assembly is achieved through the use of these slots and pre-drilled fixing holes. The production of these panels eliminates the need for complex processes such as bending and welding, ensuring panel precision. Furthermore, the panels can be stacked when not assembled, reducing space occupation. Due to its modular assembly structure, each panel also has the characteristic of rapid replacement, saving materials. Utility Model Content

[0005] The present invention aims to at least partially solve one of the technical problems in the related technologies. Therefore, the main objective of this invention is to provide a battery box structure with modular, weld-free characteristics, thereby addressing the problems of cumbersome manufacturing and assembly processes, irreplaceable components, and significant material waste in existing battery box structures.

[0006] To achieve the above objectives, this utility model provides a battery box structure with modular, weld-free characteristics, comprising a box body formed by a front frame plate, a back frame plate, a left frame plate, a right frame plate, a top frame plate, and a bottom frame plate. The front frame plate and the back frame plate are disposed opposite to each other. The left frame plate and the right frame plate are respectively located on both sides of the front frame plate and the back frame plate. The top frame plate and the bottom frame plate are disposed opposite to each other at the top and bottom of the front frame plate and the back frame plate. The top and bottom ends of the left and right frame plates are each formed with slots. Both ends of the top and bottom frame plates are provided with connecting inserts. Each connecting insert has a first fixing hole and a second fixing hole on its sides. Below the first and second fixing holes, two connectors corresponding to the slots on both sides are formed. On one side of each slot, a first assembly hole and a second assembly hole corresponding to the first and second fixing holes are respectively provided. The top of the connecting insert has a third fixing hole, and both ends of the top and bottom frame plates are fixed to the third fixing hole. The left and right frame plates are provided with side plate holes at their edges, and the front and back frame plates are provided with side holes corresponding to the side plate holes at their edges.

[0007] As a further embodiment of this utility model, each end of the top frame plate and the bottom frame plate is provided with a positioning hole, and the connecting insert plate is provided with a positioning post corresponding to the positioning hole.

[0008] As a further embodiment of this utility model, a third assembly hole is provided at the center of the upper and lower ends of the left frame plate and the right frame plate, and a plate sealing hole corresponding to the third assembly hole is provided on the connecting plate.

[0009] As a further embodiment of this utility model, the top frame plate and the bottom frame plate are edged on both sides, and the edged edges frame and limit the upper and lower ends of the front frame plate and the back frame plate.

[0010] As a further improvement of this utility model, each plate constituting the main body of the box is an integrated perforated aluminum alloy plate structure.

[0011] As a further improvement of this utility model, all assembly holes and fixing holes are screw hole structures of the same specifications.

[0012] The beneficial effects of this utility model are as follows: This solution, through its modular, weldless design, effectively solves the problems of cumbersome manufacturing, irreplaceable panels, and significant material waste associated with traditional battery enclosures. The structure utilizes slots at the top and bottom of the left and right frame plates, precisely connecting to connectors on the end plates of the top and bottom frame plates. These are then aligned and secured using first and second fixing holes on the sides of the slots. Simultaneously, a third fixing hole on the top of the connecting plate secures it to the top and bottom frame plates. Finally, the front and back frame plates connect to the side plate holes of the left and right frame plates via their side holes, completing the rapid assembly of the entire enclosure. This series of connection methods completely avoids welding and large bending processes, allowing each panel to be produced as an independent module with high precision, greatly reducing assembly difficulties and scrap rates caused by dimensional errors. Panels can be stacked during warehousing and transportation, saving space. On-site assembly is simple and efficient, and individual panels can be replaced independently when damaged, significantly improving maintenance convenience and material utilization, achieving a dual improvement in manufacturing efficiency and economic benefits. Attached Figure Description

[0013] To more clearly illustrate the technical solutions 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 the technical solutions of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of the main body of the box in this utility model.

[0015] Figure 2 This is an enlarged schematic diagram of each panel of the main body of the box in this utility model after disassembly.

[0016] Figure 3 This is an enlarged schematic diagram of the components of the present invention after disassembly of the connecting plate, left frame plate, and top frame plate.

[0017] Figure 4 This is an enlarged view of the structure of the connecting plate, left frame plate, and top frame plate after disassembly.

[0018] Figure 5 This is an enlarged schematic diagram of the edging structure on both sides of the top frame plate and the bottom frame plate in this utility model.

[0019] 1 Box body 140 First fixing hole 10 Front frame 141 Second fixing hole 100 Side hole 142 Connector 11 Back frame 143 Third fixing hole 12 Left frame 144 Positioning Post 120 Side plate holes 145 Insert plate sealing hole 121 First mounting hole 15 Top frame plate 122 Second mounting hole 150 Top frame fixing holes 123 Third assembly hole 151 positioning holes 124 slot 16 Bottom frame board 13 Right frame panel 160 Edge binding 14 Connector Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The term "one embodiment" or "implementation" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein.

[0022] Please see the appendix Figure 1-5 , This technical solution provides a battery box structure with modular, weld-free characteristics. The main body (1) of the box is composed of a front frame plate (10), a back frame plate (11), a left frame plate (12), a right frame plate (13), a top frame plate (15), and a bottom frame plate (16). The front frame plate (10) and the back frame plate (11) are arranged opposite to each other. The left frame plate (12) and the right frame plate (13) are located on the sides of the front frame plate (10) and the back frame plate (11), respectively. The top frame plate (15) and the bottom frame plate (16) are arranged opposite to each other at the top and bottom of the front frame plate (10) and the back frame plate (11).

[0023] During the assembly process, slots (124) are provided at the top and bottom of the left frame plate (12) and the right frame plate (13), while connecting plates (14) are provided at both ends of the top frame plate (15) and the bottom frame plate (16). The connecting plates (14) have a first fixing hole (140) and a second fixing hole (141) on both sides, and two plugs (142) are formed below these fixing holes. These plugs (142) can be directly inserted into the slots (124) of the left frame plate (12) and the right frame plate (13) to achieve initial positioning.

[0024] Meanwhile, a first mounting hole (121) and a second mounting hole (122) are provided on one side of the slot (124). When the connector (142) is inserted into the slot (124), the first fixing hole (140) and the second fixing hole (141) are aligned with the first mounting hole (121) and the second mounting hole (122) respectively. The connecting plate (14) can be firmly fixed to the left frame plate (12) or the right frame plate (13) by fasteners such as bolts.

[0025] In addition, a third fixing hole (143) is provided on the top of the connecting plate (14). The two ends of the top frame plate (15) and the bottom frame plate (16) are further fixed to the connecting plate (14) through the third fixing hole (143), thereby ensuring the connection stability between the top frame plate (15) and the bottom frame plate (16) and the side plate. Finally, the edges of the left frame plate (12) and the right frame plate (13) are provided with side plate holes (120), and the edges of the front frame plate (10) and the back frame plate (11) are provided with corresponding side hole positions (100). By aligning and fixing these holes, the assembly of the entire box can be completed.

[0026] The enclosure assembly structure of this solution allows for rapid assembly without welding or complex bending, requiring only plug-in connections and bolt fixing, greatly simplifying the manufacturing process and improving assembly efficiency. Because each panel adopts a modular design, it can be precisely machined as an independent component during production, avoiding dimensional issues caused by welding errors and ensuring panel accuracy. When not assembled, the panels can be stacked for storage, reducing storage space usage. Furthermore, any damaged panel can be replaced individually without scrapping the entire enclosure, significantly reducing material waste and improving resource utilization efficiency.

[0027] It is understandable that the assembly process of the enclosure in this solution can also be as follows: for example, first insert the connecting plates (14) at both ends of the top frame plate (15) and the bottom frame plate (16) into the slots (124) of the left frame plate (12) and the right frame plate (13), then fix the top frame plate (15) and the bottom frame plate (16) to the connecting plates (14), and then fix the front and rear front panels and the back frame plate (11) to the side panel holes (120) through the side holes (100) to complete the entire assembly. Specifically, after the connecting plates (14) are inserted into the slots (124), they are fixed to the first mounting holes (121) and the second mounting holes (122) through the first fixing holes (140) and the second fixing holes (141). The top frame plate (15) is fixed to the top frame plate (15) and the bottom frame plate (16) by the third fixing hole (143) at the top of the connecting plates (14). Alternatively, first assemble the top frame plate (15), bottom frame plate (16), front frame plate (10), and rear frame plate, then assemble the connecting insert plate (14), left frame plate (12), and right frame plate (13), etc.

[0028] Reference Appendix Figure 4 In a preferred embodiment of this utility model, the top frame plate (15) and the bottom frame plate (16) are provided with a positioning hole (151) at both ends, and a positioning post (144) corresponding to the positioning hole (151) is provided on the connecting plate (14).

[0029] For example, during assembly, the positioning pin (144) can be inserted into the positioning hole (151) to achieve pre-alignment and temporary fixation between the connecting plate (14) and the top frame plate (15) or bottom frame plate (16), making it easier to fix the parts in the future with bolts (or screws, etc.), and also enhancing the stability of the connection parts, effectively preventing the parts from being misaligned during assembly.

[0030] Of course, the pre-positioning function is not limited to this method. For example, you can also consider setting up a matching buckle structure at the corresponding position, or using a tapered guide pin for auxiliary positioning. These are all feasible alternatives.

[0031] Reference Appendix Figure 3 , 4 In a preferred embodiment of this utility model, the technical solution also provides a third assembly hole (123) at the center of the upper and lower ends of the left frame plate (12) and the right frame plate (13), and provides a corresponding insert sealing hole (145) on the connecting insert plate (14).

[0032] In the actual assembly process, after the connecting plate (14) is inserted into the slot (124) of the side plate and the two sides are fixed, another fastener is driven in from the inside or side of the box through the third assembly hole (123) and the plate sealing hole (145). The connecting plate (14) is connected to the middle area of ​​the left frame plate (12) or the right frame plate (13), which enhances the rigidity and stability of the overall structure and prevents the connection from loosening due to vibration.

[0033] Reference Appendix Figure 5 In a preferred embodiment of the present invention, the top frame plate (15) and the bottom frame plate (16) are provided with outwardly extending edging (160) on both sides.

[0034] Specifically, when the box is assembled, the edging (160) can cover the edges of the front frame plate (10) and the back frame plate (11) from the top and bottom to form a frame-fitting and limiting structure, which provides additional support for the front and rear plates, effectively preventing them from sinking or shifting during use, and also enhancing the integrity of the joints between the top and bottom surfaces of the box and the front and rear plates.

[0035] Reference Appendix Figure 2 In a preferred embodiment of this utility model, all the plates constituting the main body (1) of the box, including the front frame plate (10), the back frame plate (11), the left frame plate (12), the right frame plate (13), the top frame plate (15), and the bottom frame plate (16), are made of aluminum alloy and manufactured by an integral molding process. All necessary assembly holes are directly machined during manufacturing, which has the advantages of light weight, high strength and corrosion resistance. At the same time, integral molding ensures high precision of hole positions and external dimensions, which is conducive to subsequent fast and accurate modular assembly.

[0036] In addition, in some scenarios, high-strength galvanized steel sheets with the same punching precision can be used, or reinforced engineering plastics can be used to manufacture these sheets in cases with specific insulation requirements.

[0037] Reference Appendix Figure 3 , 4 In a preferred embodiment of this utility model, all the assembly holes and fixing holes used for connection in this solution, such as the first fixing hole (140), the second fixing hole (141), the third fixing hole (143), the first assembly hole (121), the second assembly hole (122), the third assembly hole (123), as well as the side plate hole (120) and the side hole (100), are all screw hole structures of the same specification. In the entire production and assembly process of the housing, only bolts and processing tools of the same specification need to be used, which greatly simplifies the management and processing of parts, effectively reduces the risk of incorrect assembly, and improves assembly efficiency.

[0038] The following points need to be explained: (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0039] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure can be combined with each other.

[0040] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A battery box structure with modular, weld-free characteristics, characterized in that, include The main body of the box is formed by the front frame, back frame, left frame, right frame, top frame, and bottom frame. The front frame plate and the back frame plate are disposed opposite to each other. The left frame plate and the right frame plate are respectively located on both sides of the front frame plate and the back frame plate. The top frame plate and the bottom frame plate are disposed opposite to each other at the top and bottom of the front frame plate and the back frame plate. The top and bottom ends of the left and right frame plates are each formed with slots. Both ends of the top and bottom frame plates are provided with connecting inserts. Each connecting insert has a first fixing hole and a second fixing hole on its sides. Below the first and second fixing holes, two connectors corresponding to the slots on both sides are formed. On one side of each slot, a first assembly hole and a second assembly hole corresponding to the first and second fixing holes are respectively provided. The top of the connecting insert has a third fixing hole, and both ends of the top and bottom frame plates are fixed to the third fixing hole. The left and right frame plates are provided with side plate holes at their edges, and the front and back frame plates are provided with side holes corresponding to the side plate holes at their edges.

2. The battery box structure with modular, weld-free characteristics according to claim 1, characterized in that, Both ends of the top frame plate and the bottom frame are provided with a positioning hole, and the connecting plate is provided with a positioning post corresponding to the positioning hole.

3. The battery box structure with modular, weld-free characteristics according to claim 1, characterized in that, The left and right frame plates are provided with a third assembly hole at the center of their upper and lower ends, and the connecting plate is provided with a plate sealing hole corresponding to the third assembly hole.

4. The battery box structure with modular, weld-free characteristics according to claim 1, characterized in that, The top frame plate and the bottom frame plate form edging on both sides, and the edging frames and limits the upper and lower ends of the front frame plate and the back frame plate.

5. The battery box structure with modular, weld-free characteristics according to claim 1, characterized in that, Each panel constituting the main body of the box is a one-piece perforated aluminum alloy panel structure.

6. The battery box structure with modular, weld-free characteristics according to claim 1, characterized in that, All assembly holes and fixing holes are screw holes of the same specifications.