Detachable battery support of electric automobile

By designing a split battery bracket and using welding and screw connections, the problems of weight and space occupation of the battery pack fixing structure were solved, achieving lightweighting and simplified installation, and improving the range and operational stability of electric vehicles.

CN223533331UActive Publication Date: 2025-11-11CNHTC CHENGDU WANGPAI COMML VEHICLE
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Patent Information

Application Number
CN202423129724.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-11-11
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Existing electric vehicle battery pack mounting structures are difficult to reduce weight and save space while ensuring stability, and their installation is complex, affecting overall vehicle performance and cost.

Method used

Design a split battery bracket, including a battery frame main structure, detachable crossbeams and columns, which are connected by welding and screwing. The detachable design reduces weight and saves space while ensuring structural stability.

Benefits of technology

This approach achieves weight reduction while meeting the requirements of battery hoisting processes, saving space, simplifying the installation process, improving vehicle range, and ensuring operational stability and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detachable battery bracket of an electric automobile, which comprises a battery frame main body structure, a battery fixing cross beam, a detachable cross beam, a detachable upright post, a transition bracket and a power battery bracket connecting piece, the battery frame main body structure is divided into an upper layer and a lower layer, and the transition bracket is arranged on one side of the battery frame main body structure; the two battery frame main structures are fixedly connected through the power battery support connecting piece, the detachable stand columns are connected to the battery frame main structures and connected with the detachable cross beams in a supporting mode, and the battery fixing cross beams are arranged above the bottom-layer battery box and installed and fixed between the upper layer and the lower layer of the battery frame main structures. The utility model has the following advantages: space is saved, and more space is reserved for loading by attaching to two sides of the frame; production and installation are easy, design is simpler, production and machining are convenient, and installation is faster; and the device is safe, reliable, reasonable in structure and free of deformation and abnormal sound during vehicle running.
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Description

Technical Field

[0001] This utility model relates to the field of commercial vehicles, and in particular to a detachable battery bracket for electric vehicles. Background Technology

[0002] Electric vehicles use power batteries as their drive source, and the battery pack, as the power source of the entire vehicle, is crucial in the development of pure electric vehicles. The battery pack is fixed to the vehicle body or frame via battery pack brackets. To cope with complex road conditions, the battery pack and its mounting structure must possess excellent performance. Lightweighting of the vehicle bracket can improve vehicle performance, save materials, and reduce costs. Due to environmental protection and energy conservation needs, lightweighting of automobiles has become a global trend in automotive development. Utility Model Content

[0003] The purpose of this invention is to design a detachable battery bracket for electric vehicles in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] This utility model provides a detachable battery bracket for electric vehicles, including a battery frame main structure, a battery fixing crossbeam, a detachable crossbeam, a detachable column, a transition bracket, and a power battery bracket connector. The battery frame main structure is divided into upper and lower layers. The transition bracket is located on one side of the battery frame main structure. The two battery frame main structures are fixedly connected by the power battery bracket connector. The detachable column is connected to the battery frame main structure and supports the detachable crossbeam. The battery fixing crossbeam is located above the bottom battery box and is installed and fixed between the upper and lower layers of the battery frame main structure. This utility model arranges two power battery brackets on each side of the frame, connected to the frame by the transition bracket. The two battery frames are fixed at the bottom of the frame by the battery bracket connector. The aim is to reduce weight while meeting battery hoisting requirements, while maintaining structural stability and minimizing space occupation in the vehicle.

[0006] As a preferred embodiment of this invention, there are three transition supports.

[0007] As a preferred embodiment of this utility model, the power battery bracket connector consists of two parts.

[0008] As a preferred embodiment of this invention, the detachable crossbeam is a single beam.

[0009] As a preferred embodiment of this invention, the detachable column is one unit.

[0010] As a preferred embodiment of this invention, there are three battery fixing beams.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. Saves space by attaching to both sides of the frame, leaving more space for the upper structure.

[0013] 2. Simple to produce and install, with a more concise design, facilitating production and processing, and making installation faster.

[0014] 3. Safe and reliable, with a reasonable structure, it does not deform or produce abnormal noises while the vehicle is in motion. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the installation structure of this utility model. Figure 1 .

[0017] Figure 3 This is a schematic diagram of the installation structure of this utility model. Figure 2 .

[0018] Figure 4 This is a schematic diagram of the installation structure of this utility model. Figure 3 .

[0019] Figure 5 This is a schematic diagram of the connection structure of this utility model. Figure 1 .

[0020] Figure 6 This is a schematic diagram of the connection structure of this utility model. Figure 2 .

[0021] In the diagram: 1-Transition bracket, 2-Power battery bracket connector, 3-Removable crossbeam, 4-Removable column, 5-Battery fixing crossbeam, 6-Battery frame main structure, 7-Second-layer battery box. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] As attached Figure 1-6 As shown, this embodiment provides a detachable battery bracket for an electric vehicle, including a battery frame main structure 6, a battery fixing crossbeam 5, a detachable crossbeam 3, a detachable column 4, a transition bracket 1, and a power battery bracket connector 2. The transition bracket 1 is located on one side of the battery frame main structure 6. The two battery frame main structures 6 are fixedly connected by the power battery bracket connector 2. The detachable column 4 is connected to the battery frame main structure 6 and supports the detachable crossbeam 3. The battery fixing crossbeam 5 is located above the bottom battery box and is fixedly mounted on the battery frame main structure 6. In this embodiment, two battery frame main structures 6 are arranged on each side of the vehicle frame, connected to the vehicle frame by the transition bracket 1. The two battery frame main structures are fixed at the bottom of the vehicle frame by the power battery bracket connector 2. This design aims to reduce weight while meeting the requirements of battery hoisting technology, while maintaining structural stability and minimizing the space occupied by the battery in the vehicle.

[0030] As a preferred embodiment of this invention, there are three transition supports 1.

[0031] As a preferred embodiment of this utility model, there are two power battery bracket connectors 2.

[0032] As a preferred embodiment of this utility model, the detachable crossbeam 3 is a single beam.

[0033] As a preferred embodiment of this utility model, the detachable column 4 is a single unit.

[0034] As a preferred embodiment of this utility model, there are three battery fixing beams 5.

[0035] Installation instructions:

[0036] The first step is to place the main battery frame structure 6 in the sub-assembly position, and use two special pads (or long benches) to support the bottom of the main frame structure. The main frame is then installed with M16 bolts and power battery bracket connector 2.

[0037] The second step is to hoist and secure the bottom battery.

[0038] The third step is to connect the mounting beam to the upper crossbeam of the bottom layer using M14 bolts after the bottom layer battery is installed.

[0039] The fourth step is to connect the upper column to the lower beam using M10 bolts;

[0040] Fifth step: Connect the top beam to the column using M10 bolts;

[0041] Step 6: Install the top-level protective longitudinal beams and protective panels.

[0042] The key technical features of this utility model are as follows:

[0043] 1. The battery frame features a split design, with the upper crossbeams and columns being detachable (i.e., detachable crossbeams 3 and detachable columns 4), facilitating the installation of the bottom and second-layer battery boxes 7. The bottom battery box can be installed first, followed by the installation of the second-layer batteries, and then the detachable crossbeams 3 and detachable columns 4 can be assembled.

[0044] 2. It saves space. The entire frame is compact, allowing for battery hoisting operations in limited space, reserving more space for the whole vehicle to more easily accommodate larger capacity batteries and improve the vehicle's range.

[0045] 3. The bracket is sturdy and reliable. The main frame structure is connected by welding and screwing, while the top layer, which is less stressed, is connected by detachable screwing. This ensures that there is no vibration or abnormal noise during vehicle operation and facilitates mass production.

[0046] 4. Optimize the overall vehicle weight. The main structure of this frame is mostly welded and assembled using U-shaped channel steel, and weight-reducing holes are drilled to reduce the weight of the entire battery bracket frame. At the same time, the U-shaped channel steel facilitates the pre-embedding of nuts and installation drilling operations (the battery mounting holes are located at its bottom), reducing the time required for battery frame assembly and battery installation.

[0047] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A detachable battery bracket for an electric vehicle, characterized in that: The battery frame main structure (6) includes a battery fixing beam (5), a detachable beam (3), a detachable column (4), a transition bracket (1), and a power battery bracket connector (2). The battery frame main structure (6) is divided into upper and lower layers. The transition bracket (1) is set on one side of the battery frame main structure (6). The two battery frame main structures (6) are fixedly connected by the power battery bracket connector (2). The detachable column (4) is connected to the battery frame main structure (6) and supports the detachable beam (3). The battery fixing beam (5) is set above the first-layer battery box and is installed and fixed between the upper and lower layers of the battery frame main structure (6).

2. The detachable battery bracket for an electric vehicle according to claim 1, characterized in that: Two battery frame main structures (6) are arranged on each side of the vehicle frame and connected to the vehicle frame by means of a transition bracket (1). The two battery frame main structures (6) are fixed at the bottom of the vehicle frame by a power battery bracket connector (2).

3. The detachable battery bracket for an electric vehicle according to claim 2, characterized in that: There are three transition supports (1).

4. The detachable battery bracket for an electric vehicle according to claim 3, characterized in that: There are two power battery bracket connectors (2).

5. The detachable battery bracket for an electric vehicle according to claim 4, characterized in that: The detachable crossbeam (3) is one.

6. The detachable battery bracket for an electric vehicle according to claim 5, characterized in that: The detachable column (4) is one.

7. A detachable battery bracket for an electric vehicle according to claim 6, characterized in that: There are three battery fixing beams (5).