BMS mounting bracket structure

Abstract

The utility model provides a BMS mounting support structure, which comprises a sheet body, a plurality of first sprouting parts, a mounting part and a second sprouting part, the plurality of first sprouting parts are arranged on the sheet body, and every two adjacent first sprouting parts are arranged at intervals and extend towards one side far away from the sheet body; the plurality of mounting parts are arranged on the sheet body and are bent towards the extending direction of the first budding part; the multiple second sprouting parts are correspondingly arranged on the mounting parts respectively, extend towards the side close to the sheet body and are arranged at intervals with the sheet body, the first sprouting parts and the second sprouting parts correspond to the BMS connecting positions respectively, two BMS can be connected to the sheet body in a fastened mode, the structure is compact, the structure is simple, and the cost is low. The two BMS modules can be tightly and orderly mounted in a limited space, so that the mounting space is greatly saved, and the overall space utilization rate of the battery pack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a BMS mounting bracket structure. Background Art

[0002] With the rapid development and popularization of new energy vehicles, improving cruising range and safety are the core technologies that new energy vehicle manufacturers and new energy power battery pack manufacturers have to overcome. Improving cruising range can be solved by increasing power and lightweighting. The weight of new energy power battery pack parts accounts for a high proportion of the entire vehicle, so lightweighting of new energy power battery pack parts is an important means to improve cruising range.

[0003] BMS is an important component of new energy battery modules. It plays a variety of roles, such as improving battery utilization, preventing battery overcharge and over-discharge, extending battery life, and monitoring battery status. Generally, one battery module is equipped with one BMS, and then the BMS device is installed inside the battery module using a mounting bracket. However, for some multi-cell battery modules, a single BMS channel is insufficient, and multiple BMSs are often required to meet the needs.

[0004] A BMS bracket with announcement number CN217589228U is used to install the BMS in the battery module. The BMS bracket includes multiple support members and locking accessories. The multiple support members are assembled through the locking accessories, and the support members and the locking accessories are detachably connected. Since the support members and the locking accessories are detachably connected, the specifications of the locking accessories can be changed first according to the process requirements, and then the multiple support members can be connected to assemble BMS brackets of different specifications.

[0005] Currently, the existing BMS brackets are not suitable for the installation requirements of multiple BMSs. When multiple BMSs need to be installed, separate brackets are required for installation, which consumes a large amount of installation space and reduces the energy density of the battery pack. Utility Model Content

[0006] In view of this, the utility model proposes a BMS mounting bracket structure, which can simultaneously install two BMSs, thereby saving a large amount of installation space and effectively improving the space utilization of the battery pack.

[0007] The technical solution of the present invention is implemented as follows: The present invention provides a BMS mounting bracket structure, including a sheet, a plurality of first budding parts, a mounting part and a second budding part, wherein:

[0008] The plurality of first sprouting portions are all provided on the sheet body, and two adjacent first sprouting portions are spaced apart and extend toward a side away from the sheet body;

[0009] The plurality of mounting portions are all provided on the sheet body and are all bent sideways toward the extension direction of the first sprouting portion;

[0010] A plurality of second sprouting parts are respectively arranged on each mounting part, and all extend toward a side close to the sheet body and are spaced apart from the sheet body.

[0011] On the basis of the above technical solution, preferably, the number of the first sprouting parts, the mounting parts and the second sprouting parts are equal, and the first sprouting parts are arranged in rotational symmetry with respect to the center point of the sheet body.

[0012] On the basis of the above technical solution, preferably, the mounting portion includes at least two first cantilevers and a second cantilever, wherein:

[0013] The sheet body is provided with two first windows which are symmetrically arranged;

[0014] At least two first cantilevers are respectively arranged in each first window, and at least two second cantilevers are fixed on one side of the sheet body. The first cantilever and the second cantilever are both integrated with the sheet body, and the at least two first cantilevers and the second cantilever are symmetrically distributed at the center point.

[0015] Based on the above technical solution, preferably, the first cantilever and the second cantilever are staggered with the first sprouting part, and are not in the same straight line position in the longitudinal direction, and the center point between at least two first cantilevers and the second cantilever is in the same straight line with the radial direction of the first sprouting part.

[0016] On the basis of the above technical solution, preferably, the first cantilever and the second cantilever are both bent, and the first cantilever and the second cantilever both include a vertical section and a parallel section, the vertical section is fixedly connected to the sheet body, the parallel section is fixedly connected to one end of the vertical section away from the sheet body, and is arranged parallel to the surface of the sheet body, and the second sprouting portion is arranged on the parallel section.

[0017] On the basis of the above technical solution, preferably, transition chamfers are provided at the connections between the vertical section, the parallel section and the sheet body.

[0018] On the basis of the above technical solution, preferably, it further includes at least two reinforcing parts, wherein two second windows are symmetrically arranged on the sheet body, and the two second windows are located between the two first windows; at least two reinforcing parts are annular and are arranged around the edge of the first window.

[0019] On the basis of the above technical solution, preferably, the reinforcement portion is formed by a stamping flange, and the reinforcement portion abuts against the surface of the sheet.

[0020] On the basis of the above technical solution, preferably, the surface of the second sprouting portion close to the sheet body and the surface of the reinforcing portion away from the sheet body are at the same height.

[0021] On the basis of the above technical solution, preferably, it further includes a plurality of mounting holes and notches, wherein,

[0022] Several mounting holes are formed on the sheet body and are arranged at each corner of the sheet body. Several mounting holes are arranged in rotational symmetry with respect to the center point of the sheet body, and are used to connect the sheet body to an external counterpart.

[0023] The notches are all formed on the sheet body and are arranged on both sides of the sheet body and located on the side of the first window away from the second window, so as to reduce the weight of the sheet body.

[0024] The BMS mounting bracket structure of the present invention has the following advantages over the prior art:

[0025] (1) By setting the first and second budding parts to correspond to the BMS connection positions respectively, the two BMSs can be fastened to the sheet body, and the structure is compact, so that the two BMS modules can be installed tightly and orderly in a limited space, which greatly saves the installation space and improves the overall space utilization of the battery pack;

[0026] (2) The weight of the sheet is reduced by providing the first window, the second window and the notch, thereby achieving a lightweight design;

[0027] (3) The first sprouting portion, the mounting portion, and the second sprouting portion are all symmetrically arranged at the center point, so that the force is evenly distributed, thereby improving the overall stability and reliability of the BMS after installation;

[0028] (4) The reinforcement part is provided to make the entire support structure more solid and durable, thereby improving the load-bearing capacity and strength of the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a three-dimensional diagram of the BMS mounting bracket structure of the present utility model;

[0031] Figure 2 This is a front view of the BMS mounting bracket structure of the present invention;

[0032] Figure 3 This is a side view of the BMS mounting bracket structure of the present invention;

[0033] Figure 4 This is a three-dimensional view of the BMS mounting bracket structure from another perspective of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figure 1-4 As shown, a BMS mounting bracket structure of the utility model includes a sheet 1, a plurality of first sprouting portions 2, a mounting portion 3 and a second sprouting portion 4, wherein the plurality of first sprouting portions 2 are all arranged on the sheet 1, and two adjacent first sprouting portions 2 are arranged at intervals, and both extend toward the side away from the sheet 1; the plurality of mounting portions 3 are all arranged on the sheet 1, and are all bent toward the extension direction of the first sprouting portion 2; the plurality of second sprouting portions 4 are respectively arranged on each mounting portion 3, and both extend toward the side close to the sheet 1, and are spaced apart from the sheet 1.

[0036] It should be noted that the sheet 1 is made of carbon steel, and the first budding portion 2 and the second budding portion 4 are both budding holes. The first budding portion 2 extends from the sheet 1 and serves as a BMS installation connection point to ensure that the BMS can be firmly installed on the bracket; at the same time, there is a gap between the installed BMS and the sheet 1, which can play a role in heat dissipation or ventilation, helping to reduce the operating temperature of the BMS module. The mounting portion 3 is formed by a stamping and bending process and is used as a structural mounting carrier for another BMS module. The second budding portion 4 plays a role in fastening and connecting another BMS module to the sheet 1. In addition, there is a gap between the second budding portion 4 and the sheet 1, that is, a step difference is formed with the sheet 1 in the vertical direction to avoid installation in the second budding portion 4, so that the sheet 1 can realize two BMS installations at the same time. The bracket structure is compactly designed, so that the two BMS modules can be installed tightly and orderly in a limited space, which greatly saves installation space and improves the overall space utilization of the battery pack.

[0037] In this embodiment, the number of the first sprouting parts 2 , the mounting parts 3 and the second sprouting parts 4 are equal, and the first sprouting parts 2 are arranged in 180° rotational symmetry with respect to the center point of the sheet body 1 .

[0038] Specifically, in this embodiment, the number of the first sprouting parts 2, the mounting parts 3 and the second sprouting parts 4 are four, and the four first sprouting parts 2, the mounting parts 3 and the second sprouting parts 4 are all symmetrically arranged at the center point, so that the force is uniform, which is beneficial to improving the overall stability and reliability of the BMS after installation.

[0039] The mounting portion 3 in this embodiment includes at least two first cantilevers 31 and a second cantilever 32, wherein two symmetrically arranged first windows 100 are opened on the sheet body 1; at least two first cantilevers 31 are respectively arranged in each first window 100, and at least two second cantilevers 32 are fixed on one side of the sheet body 1, the first cantilever 31 and the second cantilever 32 are both an integral structure with the sheet body 1, and the at least two first cantilevers 31 and the second cantilever 32 are symmetrically distributed around the center point.

[0040] It should be noted that in this embodiment, the number of the first cantilever 31 and the second cantilever 32 are both 2, and the first cantilever 31 is located in the first window 100. The first cantilever 31 and the second cantilever 32 are both formed by a stamping and bending process based on the sheet 1, which simplifies the manufacturing process and reduces costs.

[0041] In this embodiment, the first cantilever 31 and the second cantilever 32 are staggered with the first sprouting portion 2 and are not in the same straight line in the longitudinal direction. The center point between at least two first cantilevers 31 and the second cantilever 32 is in the same straight line with the radial direction of the first sprouting portion 2.

[0042] It should be noted that the mounting portion 3 and the first sprouting portion 2 in this embodiment are staggered in the x-axis and y-axis directions, so that the two BMSs can avoid each other during installation, which facilitates installation.

[0043] In this embodiment, the first cantilever 31 and the second cantilever 32 are both bent, and each of the first cantilever 31 and the second cantilever 32 includes a vertical section 301 and a parallel section 302. The vertical section 301 is fixedly connected to the sheet body 1, and the parallel section 302 is fixedly connected to the end of the vertical section 301 away from the sheet body 1, and is arranged parallel to the surface of the sheet body 1. The second sprouting portion 4 is arranged on the parallel section 302.

[0044] It should be noted that the cantilever structure formed by the bend not only provides sufficient rigidity and stability, but also can effectively disperse stress when subjected to external force, preventing structural damage caused by excessive force on a single point. Since the parallel section 302 is parallel to the surface of the sheet, the second sprouting portion 4 arranged thereon can be more easily docked and fixed with the BMS module, simplifying the installation process and reducing the installation difficulty and cost.

[0045] In this embodiment, transition chamfers are provided at the connections between the vertical section 301 and the parallel section 302 and the sheet body 1 .

[0046] It should be noted that the presence of transition chamfers can significantly reduce stress concentration at the connection. In material mechanics, sharp corners are often high-incidence areas of stress concentration, which can easily cause the material to break when subjected to external forces. By introducing transition chamfers, the stress distribution can be made more uniform, thereby improving the strength and durability of the connection and enhancing the overall performance and reliability of the BMS mounting bracket.

[0047] This embodiment also includes at least two reinforcing parts 5, wherein two symmetrically arranged second windows 110 are opened on the sheet body 1, and the two second windows 110 are located between the two first windows 100; at least two reinforcing parts 5 are annular and are arranged around the edge of the first window 100.

[0048] It should be noted that the reinforcement part 5 is an annular structure and is arranged around the edge of the first window 100, which effectively increases the supporting force of the sheet 1 around the window. Since the first window 100 may weaken the local strength of the sheet due to the removal of material, the introduction of the reinforcement part 5 makes the entire bracket structure more sturdy and durable, thereby improving the bearing capacity of the bracket.

[0049] The reinforcement portion 5 of this embodiment is formed by a stamping flange, and the reinforcement portion 5 abuts against the surface of the sheet 1 .

[0050] It should be noted that the reinforcement portion 5 is attached to the sheet body 1 by a stamping and flanging process to achieve a double-wall structure to improve strength performance.

[0051] In this embodiment, the surface of the second sprouting portion 4 close to the sheet body 1 and the surface of the reinforcing portion 5 away from the sheet body 1 are at the same height.

[0052] This embodiment also includes a plurality of mounting holes 6 and notches 7, wherein the plurality of mounting holes 6 are all provided on the sheet body 1 and are disposed at the corners of the sheet body 1, and the plurality of mounting holes 6 are arranged 180° rotationally symmetrically about the center point of the sheet body 1, for connecting the sheet body 1 to an external counterpart; the notches 7 are all provided on the sheet body 1 and are disposed on both sides of the sheet body 1, and are located on the side of the first window 100 away from the second window 110, for reducing the weight of the sheet body 1.

[0053] It should be noted that the mounting holes 6 are located at each corner of the sheet 1, ensuring that the bracket can be evenly stressed during installation, improving the stability and reliability of the installation. By installing fasteners such as bolts and screws in these holes, a firm connection between the bracket and the battery pack, vehicle body or other components can be achieved. The notch 7 helps to reduce the weight of the sheet 1 while maintaining the overall structural integrity of the bracket, thereby achieving the purpose of lightweighting.

[0054] Working principle:

[0055] The fixing holes of one BMS correspond to the first sprouting parts 2, and the BMS is fixed to the sheet body 1 with bolts. The fixing holes of another BMS correspond to the second sprouting parts 4, and the other BMS is fixed to the sheet body 1 with bolts, thereby completing the purpose of installing the two BMSs.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A BMS mounting bracket structure, characterized in that: It comprises a sheet body (1), a plurality of first sprouting parts (2), a mounting part (3) and a second sprouting part (4), wherein: A plurality of first sprouting portions (2) are all arranged on the sheet body (1), and two adjacent first sprouting portions (2) are arranged at intervals and both extend toward a side away from the sheet body (1); A plurality of mounting portions (3) are all arranged on the sheet body (1), and are all bent sideways toward the extension direction of the first sprouting portion (2); A plurality of second sprouting portions (4) are respectively arranged on each mounting portion (3), and all extend toward a side close to the sheet body (1), and are spaced apart from the sheet body (1).

2. The BMS mounting bracket structure according to claim 1, wherein: The number of the first sprouting parts (2), the mounting parts (3) and the second sprouting parts (4) are all equal, and the plurality of first sprouting parts (2) are arranged in a 180° rotational symmetry with respect to the center point of the sheet body (1).

3. The BMS mounting bracket structure according to claim 2, wherein: The mounting portion (3) comprises at least two first cantilevers (31) and a second cantilever (32), wherein: The sheet body (1) is provided with two first windows (100) which are symmetrically arranged; At least two first cantilevers (31) are respectively arranged in each first window (100), and at least two second cantilevers (32) are fixed on one side of the sheet body (1). The first cantilever (31) and the second cantilever (32) are both integrally structured with the sheet body (1), and the at least two first cantilevers (31) and the second cantilever (32) are symmetrically distributed about a central point.

4. The BMS mounting bracket structure according to claim 3, wherein: The first cantilever (31) and the second cantilever (32) are arranged in a staggered manner with the first sprouting portion (2) and are not located in the same straight line in the longitudinal direction, and the center point between at least two first cantilever arms (31) and the second cantilever (32) is located in the same straight line with the radial direction of the first sprouting portion (2).

5. The BMS mounting bracket structure according to claim 4, wherein: The first cantilever (31) and the second cantilever (32) are both bent, and each of the first cantilever (31) and the second cantilever (32) comprises a vertical section (301) and a parallel section (302), wherein the vertical section (301) is fixedly connected to the sheet body (1), and the parallel section (302) is fixedly connected to an end of the vertical section (301) away from the sheet body (1), and is arranged parallel to the surface of the sheet body (1), and the second sprouting portion (4) is arranged on the parallel section (302).

6. The BMS mounting bracket structure according to claim 5, wherein: The vertical section (301) is provided with transition chamfers at the connection points with the parallel section (302) and the sheet body (1).

7. The BMS mounting bracket structure according to claim 6, wherein: The invention also includes at least two reinforcing parts (5), wherein the sheet body (1) is provided with two symmetrically arranged second windows (110), and the two second windows (110) are located between the two first windows (100); and the at least two reinforcing parts (5) are annular and are arranged around the edge of the first window (100).

8. The BMS mounting bracket structure according to claim 7, wherein: The reinforcing portion (5) is formed by stamping and forming a flange, and the reinforcing portion (5) is in contact with the surface of the sheet body (1).

9. The BMS mounting bracket structure according to claim 8, wherein: The surface of the second sprouting portion (4) close to the sheet body (1) and the surface of the reinforcing portion (5) away from the sheet body (1) are at the same height.

10. The BMS mounting bracket structure according to claim 9, wherein: It also includes a plurality of mounting holes (6) and notches (7), wherein: A plurality of mounting holes (6) are provided on the sheet body (1) and are arranged at each corner of the sheet body (1), and the plurality of mounting holes (6) are arranged 180° rotationally symmetrically with respect to the center point of the sheet body (1), and are used for connecting the sheet body (1) with an external counterpart; The notches (7) are all formed on the sheet (1) and are arranged on both sides of the sheet (1) and located on the side of the first window (100) away from the second window (110) to reduce the weight of the sheet (1).

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