CN215896610U

CN215896610U - BMS mounting bracket

Info

Publication number: CN215896610U
Application number: CN202122038898.XU
Authority: CN
Inventors: 王晓宾
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-02-22
Anticipated expiration: 2031-08-26

Abstract

A BMS mounting bracket includes at least two load bearing brackets. The bearing supports are sequentially distributed along the extending direction of the long edge of the BMS; each bears support all is provided with boss and panel, and the boss stretches into in the interval between the adjacent battery module, and the lower terminal surface of boss and the end plate laminating of battery module, and the panel is used for bearing BMS, is equipped with the positioning stud who is used for fixed BMS on the panel. The BMS is supported by the plurality of bearing supports together, so that the size of the BMS mounting support is reduced, and the utilization rate of the internal space of the battery pack is improved; the bosses are directly locked on the module through the long bolts, and the panel is provided with the positioning studs to fix the BMS, so that parts needing to be assembled are reduced, the assembling steps of the BMS are simplified, the assembling efficiency of the battery pack is improved, and the maintenance difficulty of the BMS is reduced; the boss and the panel are integrally formed, the structure is compact, and the structural strength of the BMS mounting bracket is improved.

Description

BMS mounting bracket

Technical Field

The utility model relates to the technical field of batteries, in particular to a BMS mounting bracket.

Background

On the premise that the battery technology is not broken through, the arrangement of all parts in the battery pack is optimized, and the improvement of the space utilization rate is one of the main means for improving the energy density of the battery pack. As shown in fig. 5, when a Battery Management System (BMS) is mounted in a conventional battery pack, studs 20 are first fixed inside a battery box as a base, a mounting plate 10 is connected to the studs 20 to form a bracket, and the BMS is finally fixed to the mounting plate 10 by bolts.

In the above fixing method, screws are required to be screwed for the stud 20, the mounting plate 10 and the stud 20, and the BMS is connected to the mounting plate 10, and the number of parts and components is large, and the mounting process of the BMS is complicated, which results in low assembly efficiency and difficulty in maintenance of the battery pack.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a BMS mounting bracket which is reliable in structure and less in assembly steps.

The purpose of the utility model is realized by the following technical scheme:

a BMS mounting bracket comprises a plurality of bearing brackets;

each bearing bracket is sequentially distributed along the extending direction of the long edge of the BMS;

each bear the support and all be provided with boss and panel, the boss stretches into in the interval between the adjacent battery module, just the lower terminal surface of boss and the end plate laminating of battery module, the panel is used for bearing BMS, be equipped with the positioning stud who is used for fixed BMS on the panel.

In one embodiment, the panel extends outwards with the boss as a center, one side of the panel extends out of the coverage range of the BMS, and a wiring hole is formed in the portion, located outside the coverage range of the BMS, of the panel.

In one embodiment, the edge of the panel is provided with wiring lugs, the wiring lugs are positioned in the intervals between the adjacent battery modules, and the wiring lugs are provided with wiring harness fixing holes.

In one embodiment, the front surface and the back surface of the boss are both provided with lightening grooves.

In one embodiment, the boss is provided with a bolt fixing hole, and the end plate of the battery module is provided with a through hole matched with the bolt fixing hole.

In one embodiment, the bolt fixing holes are formed in a plurality, and the plurality of bolt fixing holes correspond to the battery modules contacting the lower end surface of the boss in a one-to-one manner.

In one embodiment, the outer wall of the BMS is provided with a mounting foot seat, and the mounting foot seat is provided with a mounting hole matched with the positioning stud.

In one embodiment, the panel is provided with a stiffener.

In one embodiment, the width of the bosses is less than the interval between the adjacent battery modules.

In one embodiment, the outer wall of the boss is provided with a position-avoiding hole, and the position-avoiding hole is communicated with the weight-reducing groove.

Compared with the prior art, the utility model has at least the following advantages:

1. the BMS is supported by the plurality of bearing supports together, so that the size of the BMS mounting support is reduced, and the utilization rate of the internal space of the battery pack is improved;

2. the long bolts penetrate through the bosses and the end plates of the battery modules to fix the BMS bracket and the battery modules on the box body bottom plate together, the bosses and the battery modules in contact with the bosses are locked together, the structural rigidity of the battery modules is improved, the structure of the battery pack is firmer, and the panel is provided with the positioning studs to fix the BMS, so that parts needing to be assembled are reduced, the assembling steps of the BMS are simplified, the assembling efficiency of the battery pack is improved, and the maintenance difficulty of the BMS is reduced;

3. the boss and the panel are integrally formed, the structure is compact, and the structural strength of the BMS mounting bracket is improved.

Drawings

The above and other aspects, features and advantages of certain exemplary embodiments of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

fig. 1 is an exploded view of a BMS mounting bracket according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating the distribution of BMS mounting brackets within a battery pack in accordance with an embodiment of the present invention;

FIG. 3 is a schematic structural view of a support bracket according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of the support bracket shown in FIG. 3 from another perspective;

fig. 5 is a schematic view illustrating the structure of a conventional BMS mounting bracket.

Reference numerals:

BMS mounting bracket 1, support bracket 100, boss 110, lightening groove 111, panel 120, positioning stud 121, wiring lug 122, reinforcing rib 123, BMS31, spacer 32, battery module 33, end plate 34, mounting foot 35, stud 20, mounting plate 10, wiring hole 41, wire harness fixing hole 42, bolt fixing hole 43, mounting hole 44, avoiding hole 45, long bolt 51

Detailed Description

Referring to fig. 1, a BMS mounting bracket 1 includes a plurality of load-bearing brackets 100, the load-bearing brackets 100 are disposed in a battery pack, and a plurality of load-bearing brackets 100 are fitted on a battery module 33 to form a platform for supporting a BMS31, so that the load-bearing brackets 100 do not need to cover the entire bottom surface of a BMS31, and are small-sized brackets, which is advantageous for improving the space utilization rate inside the battery pack.

Referring to fig. 1, the plurality of the load bearing brackets 100 are sequentially distributed along the extending direction of the long side of the BMS31, the number of the load bearing brackets 100 is increased or decreased according to the length of the BMS31, and at least 2 load bearing brackets 100 are provided to support both ends of the BMS31, respectively.

Referring to fig. 3 and 4, each of the supporting brackets 100 is provided with a boss 110 and a panel 120, and the boss 110 and the panel 120 are integrally formed, so that the structure is compact and the structural strength is high, and stable support can be provided for the BMS 31. The boss 110 extends into the space 32 between the adjacent battery modules 33, the lower end face of the boss 110 is attached to the end plate 34 of the battery module 33, the panel 120 is used for bearing the BMS31, the panel 120 is provided with the positioning stud 121 for fixing the BMS31, specifically, the outer wall of the BMS31 is provided with the mounting foot seat 35, the mounting foot seat 35 is provided with the mounting hole 44 matched with the positioning stud 121, the BMS31 is placed on the panel 120, the positioning stud 121 on the panel 120 penetrates through the mounting hole 44 on the mounting foot seat 35, and finally the mounting foot seat 35 is locked on the panel 120 through a nut.

Referring to fig. 1 and fig. 2, it should be noted that the battery modules 33 in the battery pack are distributed in a rectangular array, that is, the plurality of battery modules 33 are divided into a plurality of rows and a plurality of columns, a gap exists between two adjacent rows of battery modules 33 or two adjacent columns of battery modules 33, a larger interval 32 is formed at the side of the upper end plate 34 of the battery module 33, and the interval 32 between two adjacent rows (columns) is the fixing position of the supporting bracket 100.

After the bosses 110 on the supporting bracket 100 extend into the gaps 32, the lower end faces of the bosses 110 are attached to the end plates 34 of the battery modules 33, a plurality of end plates 34 in contact with the lower end faces of the bosses 110 are provided, and the bosses 110 and the end plates 34 in contact with the bosses 110 can be jointly fixed to the bottom plate of the box body through the long bolts 51, that is, the supporting bracket 100 and each adjacent battery module 33 are locked together, so that the connection of the battery modules 33 is firmer. Note that the width of the bosses 110 is smaller than the interval between the adjacent battery modules 33. That is, after the bosses 110 are inserted into the spaces 32, there is a gap between the outer walls of the bosses 110 and the outer walls of the battery modules 33 located at both sides thereof.

Compared with the scheme shown in fig. 5, the stud 20 does not need to be fixed on the end plate 34 in the fixing process, and the mounting plate 10 and the stud 20 do not need to be connected through screws, so that fewer parts are needed in the assembling process, the assembling steps are simplified, and the assembling efficiency of the whole battery pack can be effectively improved.

Referring to fig. 1, in order to facilitate the arrangement of the wire harness, the panel 120 extends outward around the boss 110, one side of the panel 120 extends out of the coverage of the BMS31, and a wire hole 41 is formed in a portion of the panel 120 outside the coverage of the BMS 31. Further, a wiring lug 122 is disposed on an edge of the panel 120, the wiring lug 122 is located in the space 32 between the adjacent battery modules 33, and a wiring harness fixing hole 42 is formed on the wiring lug 122.

Referring to fig. 3 and 4, in an embodiment, weight-reducing grooves 111 are formed on both the front surface and the back surface of the boss 110, and the weight of the supporting bracket 100 is reduced by hollowing out the boss 110 through the weight-reducing grooves 111. Preferably, the boss 110 is provided with a bolt fixing hole 43, and the end plate 34 of the battery module 33 is provided with a through hole matching with the bolt fixing hole 43. The long bolt 51 passes through the bolt fixing hole 43 and the through hole on the end plate 34 and is connected with the bottom plate of the box body.

Preferably, a plurality of bolt fixing holes 43 are formed, and the plurality of bolt fixing holes 43 are formed to face the respective battery modules 33 contacting the lower end surface of the boss 110 in a one-to-one correspondence. The number of the bolt fixing holes 43 is determined according to the number of the end plates 34 contacting with the lower end surfaces of the bosses 110, as shown in fig. 2, after the carrier bracket 100 is fixed to the spacers 32, the bosses 110 contact with the end plates 34 of the adjacent 4 battery modules 33, 4 bolt fixing holes 43 are provided in the drawing, and the bosses 110 are connected with the 4 end plates 34 by the long bolts 51, so that the 4 battery modules 33 are further locked by the bosses 110 while the carrier bracket 100 is fixed, thereby improving the structural strength of the battery modules 33.

Referring to fig. 4, the panel 120 is a thin plate, and the panel 120 is provided with a reinforcing rib 123 to ensure the structural strength of the panel 120. In one embodiment, the outer wall of the boss 110 is provided with a clearance hole 45 to avoid the flange surface of the long bolt 51, so as to facilitate the installation of the long bolt 51.

Claims

1. A BMS mounting bracket is characterized by comprising a plurality of bearing brackets;

2. The BMS mounting bracket according to claim 1, wherein the panel extends outward centering on the boss, one side of the panel extends outside a coverage of the BMS, and a wiring hole is opened at a portion of the panel outside the coverage of the BMS.

3. The BMS mounting bracket according to claim 1, wherein wiring lugs are provided on edges of the panel, the wiring lugs being located in spaces between adjacent battery modules, and the wiring lugs being provided with harness fixing holes.

4. The BMS mounting bracket of claim 1, wherein weight-reducing slots are formed in both the front and back sides of the boss.

5. The BMS mounting bracket according to claim 4, wherein the boss is provided with bolt fixing holes, and the end plate of the battery module is provided with through holes matched with the bolt fixing holes.

6. The BMS mounting bracket according to claim 5, wherein the bolt fixing holes are formed in plural numbers, and the plural bolt fixing holes are formed in a one-to-one correspondence to the respective battery modules contacting the lower end surfaces of the bosses.

7. The BMS mounting bracket according to any of claims 1 to 6, wherein mounting feet are provided on the outer wall of the BMS, and mounting holes matched with the positioning studs are opened on the mounting feet.

8. The BMS mounting bracket of any of claims 1 to 6, wherein a stiffener is provided on the face plate.

9. The BMS mounting bracket according to any one of claims 1 to 6, wherein the bosses have a width smaller than a spacing between adjacent battery modules.

10. The BMS mounting bracket according to any of claims 4 to 5, wherein a clearance hole is formed on an outer wall of the boss.