BMS fixing support

Abstract

The utility model provides a BMS (battery management system) fixing support, which relates to the technical field of battery management systems, and comprises a mounting frame used for mounting a BMS, and the mounting frame comprises a frame body which is at least mounted at two horizontal ends of the vertically placed BMS; the bottom end of the frame body extends to the lower part of the BMS, so that the BMS is vertically supported by the at least two frame bodies; the mounting frames are arranged at the two ends of the BMS, the BMS is vertically fixed between the two mounting frames, the internal space of the battery pack is saved in a vertical mode of the BMS, meanwhile, the two BMS can be mounted on the two sides of the mounting frames, the utilization rate of the internal space of the battery pack is further increased, the BMS is mounted on the frame body, the bottom end extending part of the frame body can play a supporting role in the battery pack, the BMS is separated from the bottom wall, and the battery pack is more convenient to use. And the BMS is prevented from colliding with the inner wall of the battery pack on the frame body, so that the service life of the BMS is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery management systems, and particularly relates to a BMS fixing bracket. Background Art

[0002] A battery management system (BMS) is a system used to monitor and manage batteries. It can real-time monitor parameters such as the state, temperature, current, and voltage of the batteries, and protect the batteries from damage by controlling the charging and discharging processes.

[0003] The function of the BMS fixing bracket is to fix the BMS components and stably install them inside the battery pack for normal operation. The BMS fixing bracket is a bracket used to fix the battery management system. The BMS fixing bracket is generally made of metal materials, has a fixed structure and shape, and can install the BMS components inside the battery pack.

[0004] In the prior art, as shown in the attached drawings of the specification for the BMS fixing solution Figure 1 it uses the form of a sheet metal combined bracket to horizontally place the BMS master and slave units, making the placement of the BMS components more stable. The increased structural strength of the sheet metal parts helps to reduce the risk of damage to the battery system, thereby improving the use safety.

[0005] However, the above solution still has the following problems. The main disadvantage is that the sheet metal bracket itself is relatively heavy, and multiple brackets need to be combined, resulting in an increase in the production cost of the sheet metal bracket. When the sheet metal parts are placed horizontally, heat accumulates at the bottom, causing local overheating, affecting the battery performance and life, and the horizontal placement form requires a larger layout space in many cases. Multiple factors all affect the installation of the BMS. Summary of the Utility Model

[0006] To solve the above technical problems, the utility model solves the technical problem that the sheet metal bracket horizontally places the BMS, occupying a larger space and affecting the installation of the BMS. The specific technical solution is as follows:

[0007] A BMS fixing bracket includes an installation frame for installing the BMS. The installation frame includes a frame body, which is at least installed at the horizontal two ends of the vertically placed BMS; its bottom end extends below the BMS, so that the BMS is vertically supported by at least two frame bodies.

[0008] In the above solution, to ensure the stability of both ends of the BMS, the frame body is installed at both ends of the BMS, and the rest can be placed as needed. The bottom end of the frame body is located below the BMS. When the BMS is installed on the frame body, the extended part of the bottom end of the frame body can play a supporting role in the battery pack, separating the BMS from the bottom wall.

[0009] Preferably, the mounting bracket further includes mounting posts provided between it and the BMS mounting surface, and at least two of the mounting posts are provided with threaded bushings, and the BMS is connected to the bracket body through the threaded bushings. Among them, the threaded bushings can be selectively placed in different mounting posts to adapt to BMSs with different mounting sizes.

[0010] Preferably, the threaded bushings are distributed at the top and bottom ends of the BMS. This ensures that both the top and bottom ends of the BMS serve as mounting fulcrums, improving the stability of the BMS installation.

[0011] Preferably, the same BMS is mounted on the same side of multiple bracket bodies. This increases the number of BMSs that can be installed. The vertical design can make full use of the space inside the battery pack, avoiding low space utilization caused by a horizontal arrangement.

[0012] Preferably, the bottom end of the bracket body extends relatively to form a rib platform, and a through-hole bushing is provided on the rib platform. The through-hole bushing is used to fix the mounting bracket to the battery pack.

[0013] Preferably, the bracket body is provided with a plurality of inner holes. The setting of the inner holes is used to reduce the weight of the bracket body and save the overall use of materials at the same time.

[0014] Preferably, holes corresponding to and communicating with some of the inner holes are also provided on the bracket body. This improves the heat dissipation efficiency at the connection of the BMSs, preventing the temperature from being difficult to dissipate due to being blocked by the side edges of the inner holes between adjacent BMSs.

[0015] Preferably, the mounting bracket is formed by plastic injection molding. This reduces the overall mass. The weight of the mounting bracket is reduced by injection molding, avoiding excessive weight caused by the use of sheet metal parts.

[0016] From the above technical solutions, it can be seen that the present utility model has the following beneficial effects:

[0017] In the present utility model, mounting brackets are provided at both ends of the BMS, so that the BMS is vertically fixed between the two mounting brackets. The vertical arrangement of the BMS saves the space inside the battery pack. At the same time, two groups of BMSs can be installed on both sides of the mounting bracket, further improving the space utilization rate inside the battery pack and ensuring that the sockets of the BMSs face upward, which helps with heat dissipation.

[0018] After two groups of BMSs are installed, the gap in the middle is convenient for fixing with a screwdriver, improving the convenience of installation. The mounting bracket is formed by injection molding, replacing the original sheet metal parts, which can reduce the overall mass. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of an existing design using sheet metal parts for installation;

[0020] Figure 2Structural schematic diagram of the assembly of the present utility model and the BMS

[0021] Figure 3 Partial structural schematic diagram of the assembly of the present utility model and the BMS

[0022] Figure 4 Structural schematic diagram of the present utility model

[0023] In the figure: 10, BMS; 20, mounting bracket; 201, bracket body; 202, inner hole; 203, mounting post; 204, threaded bushing; 205, rib platform; 206, through-hole bushing. Specific embodiments

[0024] The following combines the accompanying drawings and specific embodiments to elaborate on the present utility model in detail. Before elaborating on the technical solutions of each embodiment of the present utility model, the nouns and terms involved are explained. In this specification, components with the same name or the same reference numeral represent similar or identical structures, and are for illustrative purposes only.

[0025] As Figure 1 shown, it is an installation method commonly used in the prior art. Specifically, the BMS is placed horizontally, and both ends are fixed to the end mounting holes of the BMS using sheet metal parts, so that the BMS is horizontally installed inside the battery pack. When subjected to vertical forces, it is prone to deformation or damage, affecting its function of protecting the battery. At the same time, the horizontal placement of the BMS is not conducive to the heat dissipation efficiency. During the charging and discharging process of the battery, heat is generated. If the BMS is placed horizontally, the principle of heat rising may be unfavorable for heat dissipation, thereby affecting the performance and lifespan of the battery.

[0026] As Figure 2 and Figure 3 shown, a BMS fixing bracket includes a mounting bracket 20 for mounting the BMS 10. The mounting bracket 20 includes a bracket body 201, which is at least installed at the horizontal ends of the vertically placed BMS 10; its bottom end extends below the BMS 10, so that the BMS 10 is vertically supported by at least two bracket bodies 201. Among them, the number of bracket bodies 201 is at least two. After the BMS 10 is vertically placed, to ensure the stability of both ends of the BMS 10, the bracket bodies 201 are installed at both ends of the BMS 10, and the rest can be placed as needed. The bottom end of the bracket body 201 is located below the BMS 10. When the BMS 10 is installed on the bracket body 201, the extended part at the bottom end of the bracket body 201 can play a supporting role inside the battery pack, separating the BMS 10 from the bottom wall, and preventing the BMS 10 from colliding with the inner wall of the battery pack on the bracket body 201, so as not to affect the service life of the BMS 10.

[0027] The mounting bracket 20 further includes mounting posts 203 provided on its mounting surface with the BMS 10. At least two of the mounting posts 203 are provided with threaded bushings 204. The BMS 10 is connected to the frame body 201 through the threaded bushings 204. Among them, the mounting posts 203 are embedded in the frame body 201 and are arranged along the thickness direction of the frame body 201, so that the threaded bushings 204 can be selectively placed in different mounting posts 203 to adapt to the BMS 10 with different mounting dimensions. Preferably, the threaded bushings 204 are distributed at the top and bottom ends of the BMS 10 to ensure that both the top and bottom ends of the BMS 10 serve as mounting fulcrums, improving the stability of the BMS 10 installation.

[0028] As Figure 2 and Figure 3 shown, the same BMS 10 is installed on the same side of multiple frame bodies 201. Among them, it is preferably to set two mounting brackets 20, and the BMS 10 is installed on both sides of the two mounting brackets 20, which not only increases the installation quantity of the BMS 10, but also the vertical design can make full use of the space in the battery pack to avoid low space utilization caused by the horizontal setting.

[0029] As Figure 3 and Figure 4 shown, the bottom end of the frame body 201 extends relatively to form a rib platform 205, and a through-hole bushing 206 is provided on the rib platform 205. Among them, the through-hole bushing 206 is used to fix the mounting bracket 20 to the battery pack. When fixing the BMS 10 on both sides of multiple frame bodies 201, there is a gap between the two BMS 10s. The rib platform 205 is located in this gap, which can hide the rib platform 205. At the same time, a screwdriver accessory can be inserted through the gap, which is convenient for the screwdriver to extend from the gap to the through-hole bushing 206 to fix the frame body 201 to the battery pack, improving the installation convenience.

[0030] As Figure 4 shown, a plurality of inner holes 202 are provided on the frame body 201. The setting of the inner holes 202 is used to reduce the weight of the frame body 201, while saving the overall use of materials, and the design of this structure also meets the support requirements for the BMS 10.

[0031] As Figure 4 shown, holes corresponding to and communicating with some of the inner holes 202 are also provided on the frame body 201. Among them, the inner holes 202 are square and are equidistantly arranged on the frame body 201. Some of the inner holes 202 directly penetrate the frame body 201, and holes are also opened on the side walls of the inner holes 202 that penetrate the frame body 201. The purpose is to improve the heat dissipation efficiency of the temperature at the connection of the BMS 10 to prevent the temperature from being difficult to dissipate due to the side of the inner hole 202 blocking between adjacent two BMS 10s.

[0032] The mounting bracket 20 is formed by plastic injection molding, reducing the overall quality. The weight of the mounting bracket 20 is reduced by injection molding, avoiding excessive weight caused by the use of sheet metal parts.

[0033] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A BMS fixing bracket, comprising a mounting bracket (20) for mounting a BMS (10), characterized in that, The mounting bracket (20) includes a frame body (201) mounted at least at the horizontal two ends of the vertically placed BMS (10); the bottom end thereof extends below the BMS (10), so that the BMS (10) is vertically supported by at least two frame bodies (201).

2. The BMS fixing bracket according to claim 1, wherein The mounting bracket (20) further includes mounting posts (203) provided on its mounting surface with the BMS (10), and at least two of the mounting posts (203) are provided with threaded bushings (204), and the BMS (10) is connected to the frame body (201) through the threaded bushings (204).

3. The BMS fixing bracket according to claim 2, characterized in that, The threaded bushings (204) are distributed at the top and bottom ends of the BMS (10).

4. The BMS fixing bracket according to claim 1, wherein, The same BMS (10) is mounted on the same side of a plurality of the frame bodies (201).

5. The BMS fixing bracket according to claim 1, characterized in that, The bottom ends of the frame bodies (201) extend relatively to form rib platforms (205), and through-hole bushings (206) are provided on the rib platforms (205).

6. The BMS fixing bracket according to claim 1, characterized in that, A plurality of inner holes (202) are provided on the frame body (201).

7. The BMS fixing bracket according to claim 6, wherein Holes corresponding to and communicating with some of the inner holes (202) are further provided on the frame body (201).

8. The BMS fixing bracket according to claim 1, wherein The mounting bracket (20) is formed by plastic injection molding.

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