CN218123513U

CN218123513U - Support and battery pack

Info

Publication number: CN218123513U
Application number: CN202222490546.2U
Authority: CN
Inventors: 赵冬
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-12-23
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a support, it is used for installing battery management system, the support includes the mounting panel, the mounting panel is concave-convex structure, and it is including at least one convex part and at least one concave part that set up in turn, the convex part is equipped with the installation face, the concave part dorsad the installation face is recessed, just the concave part is along being on a parallel with the direction of installation face is link up the mounting panel. This support is established and is used for installing battery management system in the battery package, can effectively optimize battery management system's radiating effect.

Description

Support and battery pack

Technical Field

The utility model relates to a battery technology field especially relates to a support and battery package.

Background

With the development of the new energy automobile industry, electric automobiles are more and more popular, and the battery pack is used as a key component of the electric automobiles and mainly provides energy for the electric automobiles. A Battery Management System (BMS), which serves as the brain of the battery pack, can intelligently manage and maintain the respective battery cells, prevent overcharge and overdischarge of the battery, extend the life of the battery, monitor the state of the battery, and the like.

BMS generally is through the support mounting in the battery package, but, during current BMS installation, the whole laminating of bottom surface of BMS is on the support, and in the battery package working process, the heat that BMS produced is whole to be concentrated on between BMS bottom surface and the support, and the heat can't distribute away, influences BMS's life easily.

SUMMERY OF THE UTILITY MODEL

In order to overcome above-mentioned prior art at least one defect, the utility model provides a support, it is established and is used for the installing the system in the battery package, can effectively optimize battery management system's radiating effect.

The utility model discloses a solve the technical scheme that its problem adopted and be:

a bracket for mounting a battery management system comprises a mounting plate, wherein the mounting plate is of a concave-convex structure and comprises at least one convex part and at least one concave part which are alternately arranged, the convex part is provided with a mounting surface, the concave part is concave downwards opposite to the mounting surface, and the concave part penetrates through the mounting plate along a direction parallel to the mounting surface;

in the mounting state, the battery management system is mounted on the mounting surface, and at least part of the battery management system is suspended in the concave part.

The utility model discloses a support establishes the mounting panel into concave-convex structure, and battery management system installs at the convex part and unsettled in the concave part, and in the battery package working process, the heat that battery management system produced can distribute away through the concave part is effectual, has optimized battery management system's radiating effect.

Moreover, the wiring harness of the battery management system can be arranged in the concave part in a centralized manner, so that the mutual interference of the wiring harness of the BMS and the wiring harness of other electrical elements in the battery pack due to the disordered distribution of the wiring harnesses is avoided, the wiring harness distribution condition in the battery pack is optimized, the space in the battery pack is saved, short circuit caused by mutual interference, abrasion and the like among the wiring harnesses is not easy to cause risks such as thermal runaway and the like due to the wiring harness distribution problem, and the optimization of the wiring harness distribution is favorable for follow-up maintenance and disassembly of the battery pack and various parts in the battery pack.

On the other hand, the utility model also provides a battery pack, it includes battery box and battery management system, and the battery box includes bottom plate, explosion-proof valve and locates the above-mentioned support of battery box, and battery management system installs on the support.

Drawings

Fig. 1 is a schematic structural view of a battery pack in examples 1 and 2;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view showing the structure of a stent according to example 1;

fig. 4 is a schematic structural view of a stent in example 2.

Wherein the reference numerals have the following meanings:

0. a battery pack; 1. a battery box; 2. a base plate; 3. an explosion-proof valve; 4. a support beam; 5. a support; 51. mounting a plate; 511. a convex portion; 512. a recess; 513. a mounting surface; 514. a protrusion; 515. a lateral recess; 516. a longitudinal recess; 52. a support plate; 53. an ear plate; 531. mounting holes; 6. BMS.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1

Referring to fig. 3, the present embodiment discloses a bracket 5 for mounting a BMS6. In addition, referring to fig. 1, the present embodiment also discloses a battery pack 0 including a battery box 1 and a BMS6 provided in the battery box 1, wherein the BMS6 is mounted in the battery box 1 through a bracket 5.

Specifically, referring to fig. 3, the rack 5 includes a mounting plate 51 of a concavo-convex structure provided with a convex portion 511 and a concave portion 512, wherein the convex portion 511 is provided with a mounting surface 513 for mounting the BMS6, the concave direction of the concave portion 512 is opposite to the mounting surface 513, and the concave portion 512 penetrates the mounting plate 51 in the length direction thereof. The support 5 of this embodiment establishes mounting panel 51 into concave-convex structure, erect BMS6 through convex part 511, concave part 512 is used for concentrating the wiring with the pencil on BMS6 and walks the line, the mixed and disorderly distribution of pencil of other electrical component in BMS6 pencil and the battery package 0 and mutual interference, the pencil distribution situation in the battery package 0 has not only been optimized, 0 inner space of battery package has been saved, and difficult mutual interference between the pencil, wearing and tearing etc. cause the short circuit, thereby be difficult for causing risks such as thermal runaway because of pencil distribution problem, and the optimization of pencil distribution is favorable to follow-up maintenance and the dismouting to battery package 0 and various spare parts in it.

Preferably, mounting plate 51 of concavo-convex structure is provided with two convex portions 511 and one concave portion 512, two convex portions 511 and one concave portion 512 are arranged side by side, and two convex portions 511 are separated by one concave portion 512, and BMS6 is mounted on two convex portions 511, so that the edges of BMS6 are erected on two convex portions 511, the middle of BMS6 is suspended in a hollow portion 512, and at this time, concave portion 512 can be used for concentrated wiring of BMS6 wire harness, and BMS6 can be elevated to make it more convenient for heat dissipation of BMS6, and heat concentration between BMS6 and convex portions 511 is avoided.

According to the structure of the mounting plate 51, when two or more BMS6 modules are mounted in one battery pack 0, the BMS6 can be uniformly distributed and mounted on the two protrusions 511 according to actual conditions, even a plurality of BMSs 6 can be mounted on each protrusion 511, and then the wire harnesses of the BMSs 6 can be collectively routed in the recesses 512.

Thus, the mounting plate 51 of the concavo-convex structure of the present embodiment may be deformed to be provided with one convex portion 511 and one concave portion 512, the BMSs 6 being mounted on the one convex portion 511, and the wire harness of the BMS6 being routed concentrated on the one concave portion 512. If the number of the wire harnesses of the BMS6 is large, the mounting plate 51 of the concavo-convex structure may be deformed to be provided with two recesses 512 and one protrusion 511, the one protrusion 511 and the two recesses 512 are arranged in parallel, and the one protrusion 511 partitions the two recesses 512, so that the wire harnesses of the BMS6 can be dispersed to be routed at the two recesses 512 after the BMS6 is mounted at the protrusion 511. Of course, in practical application, the shape of the metal plate can be changed into other shapes according to requirements, which are not listed here, and the principle is the same.

From the above list, the BMS6 may be completely mounted on the convex portions 511 without being suspended by the concave portions 512 when the BMS6 is mounted, and heat may be concentrated between the BMS6 and the convex portions 512. For this, referring to fig. 3, the protrusion 512 of the present embodiment is provided with protrusions 514, the protrusions 514 are protruded from the mounting surface 513, the number of the protrusions 514 is equal to the number of the BMS6 mounting parts, and the positions of the protrusions 514 correspond to the positions of the BMS6 mounting parts. From this, when installing BMS6 at convex part 511, make the installation department of BMS6 install in corresponding arch 514 department to there is the clearance between the main part position of messenger BMS6 and convex part 511, conveniently distribute away the heat. Specifically, the mounting part of the BMS6 is mounted at the protrusion 514 by a fastener, which may be selected from a bolt-nut assembly.

In this embodiment, the protrusion 514 may be stamped and formed from the protrusion 511, and the protrusion 511 and/or the recess 512 may be stamped and formed from the mounting plate 51.

The main structure of the rack 5 of the present embodiment can be known from the foregoing discussion, and how the BMS6 is mounted in the battery case 1 through the rack 5 will be discussed below. Referring to fig. 1 and 2, the battery box 1 is provided with a base plate 2, and a bracket 5 is fixed on the base plate 2. Specifically, two modes may be preferred:

first, the bracket 5 is adhered to the base plate 2, specifically, the bottom of the concave portion 512 is adhered to the base plate 2 by a heat conductive adhesive. This kind of mode can further improve the radiating effect through the heat-conducting glue pastes.

Secondly, the bracket 5 further comprises a supporting plate 52, the supporting plate 52 extends towards the bottom plate 2, an ear plate 53 is arranged at one end of the supporting plate 52 extending towards the bottom plate 2, and a mounting hole 531 is arranged on the ear plate 53. The fixing mode is that the bottom of the concave part 512 is adhered to the bottom plate 2 through the heat conducting glue, and meanwhile, the fixing mode is fixed on the bottom plate through the mounting hole 531 of the ear plate 53 through the fastener, so that the mounting stability of the bracket 5 is improved.

For the second fixing mode, the following steps can be substituted: the base plate 2 is provided with a support beam 4, and the ear plate 53 is mounted on the support beam 4.

In the above two fixing methods, the distance between the protrusion 511 and the bottom plate 2 needs to be greater than the length of the fastener at the protrusion 514 after passing through the protrusion 511, and in the second fixing method, the ear plate 53 and the support plate 52 need to be vertically staggered from the protrusion 514, so that the fastener at the protrusion 514 can be smoothly installed.

In addition, in the above two fixing modes, the bottom plate 2 can be designed as a liquid cooling plate, so as to further improve the heat dissipation effect.

Further, the battery case 1 is provided with the explosion-proof valve 3, the position of the explosion-proof valve 3 is close to or the same as that of the explosion-proof valve 3 of the battery case 1 which is common in the prior art, and when the holder 5 is mounted on the bottom plate 2, one end portion of the concave portion 512 in the length direction thereof is provided corresponding to the position of the explosion-proof valve 3. For example, in the aforementioned preferred structure, that is, "the mounting plate 51 of concave-convex structure is provided with two convex portions 511 and one concave portion 512, the two convex portions 511 and the one concave portion 512 are arranged side by side, and the two convex portions 511 are spaced apart by the one concave portion 512, and the BMS6 is mounted on the two convex portions 511 such that the edges of the BMS6 are mounted on the two convex portions 511 and the middle of the BMS6 is suspended from the one concave portion 512", one end portion of the concave portion 512 in the length direction thereof is disposed corresponding to the position of the explosion-proof valve, and at this time, heat can directly reach the explosion-proof valve 3 along the long path of the concave portion 512 and be radiated, thereby improving heat radiation efficiency. Of course, the design method of the concave portion 512 with other structures listed above can refer to the structural design, and is not listed here.

In addition, the surface of the bracket 5 of the present embodiment is completely coated with the insulating layer, or partially coated with the insulating layer, for example, at the protrusion 514 of the convex portion 511, at several routing concave portions 512, at the connection between the bracket 5 and the bottom plate 2 and the supporting beam 4, etc., so as to avoid the short circuit inside the battery pack 0. Specifically, the insulation resistance value of the insulation layer is 10 to 500m Ω.

Example 2

Referring to fig. 4, the present embodiment also discloses a rack 5, the rack 5 also being provided in the battery case 1 shown in fig. 1 for mounting a BMS6, the rack 5 of the present embodiment being different from that of embodiment 1 in that: the present embodiment is provided with two recesses 512 arranged crosswise.

Specifically, the two concave portions 512 are a transverse concave portion 515 and a longitudinal concave portion 516, respectively, the transverse concave portion 515 and the longitudinal concave portion 516 are arranged in an intersecting manner, and each concave portion 512 is spaced apart by two convex portions 511 in the width direction thereof, that is, one convex portion 511 is arranged on each of both sides in the width direction of the transverse concave portion 515, and one convex portion 511 is arranged on each of both sides in the width direction of the longitudinal concave portion 516, so that the mounting plate 51 is a structure in which the transverse concave portion 515 and the longitudinal concave portion 516 are arranged in an intersecting manner and are spaced apart by four convex portions 511. When the BMS6 is mounted using the support 5 having this structure, one BMS6 may be mounted on the four protrusions 511 and be suspended by the lateral recesses 515 and the longitudinal recesses 516, or two or more BMS6 may be arranged side by side and be suspended by at least one of the recesses 512, whereby the recess 512 for suspending all of the BMSs 6 may be left vacant, and the other recess 516 is used for several kinds of wiring, and one end in the length direction of the recess 512 for suspending all of the MSs 6 is provided corresponding to the explosion proof valve 3. For example, referring to fig. 4, one end of the transverse depressed portion 515 in the longitudinal direction is disposed corresponding to the explosion-proof valve 3, one BMS6 is disposed along the longitudinal direction of the transverse depressed portion 515, or two or more BMSs 6 are disposed side by side in the longitudinal direction of the transverse depressed portion 515, the middle of the BMS6 is suspended by the transverse depressed portion 515, the wiring harness of the BMS6 is concentrated on the longitudinal depressed portion 516 and routed, and the transverse depressed portion 515 is left empty so that the heat of the BMS6 can be directly dissipated along the long path of the transverse depressed portion 515 to the explosion-proof valve 3, thereby significantly improving the heat dissipation efficiency.

Preferably, the transverse recesses 515 and the longitudinal recesses 516 are arranged crosswise, and in this case, the four protrusions 511 have four identical structures, so that the structure of the bracket 5 is more stable.

Finally, it is to be noted that, when the BMS6 is mounted on the rack 5 of the present embodiment, one or more BMSs 6 may be mounted on each convex portion 511 side by side according to actual needs, in this case, the transverse concave portion 515 and the longitudinal concave portion 516 mainly function to intensively route the wire harness of the BMS6, and of course, since the two concave portions 512, i.e., the transverse concave portion 515 and the longitudinal concave portion 516, are provided, the contact area between the rack 5 and the bottom plate 2 is larger, and when the bottom plate 2 is a liquid cooling plate, the heat dissipation is facilitated.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by combining the above technical features at will. It should be noted that modifications and embellishments may be made by those skilled in the art without departing from the principles of the present invention and are considered within the scope of the invention.

Claims

1. A rack for mounting a battery management system, the rack comprising a mounting plate, characterized in that: the mounting plate is of a concave-convex structure and comprises at least one convex part and at least one concave part which are alternately arranged, the convex part is provided with a mounting surface, the concave part is concave downwards opposite to the mounting surface, and the concave part penetrates through the mounting plate along a direction parallel to the mounting surface;

in the mounting state, the battery management system is mounted on the mounting surface, and at least part of the battery management system is suspended on the concave part.

2. A bracket according to claim 1, wherein: the number of the convex parts is at least two, the two convex parts are arranged in parallel, and one concave part is formed between the two convex parts;

in the mounting state, two end parts of the battery management system are respectively mounted on the two convex parts, and the middle area of the battery management system is suspended on the concave part.

3. A bracket according to claim 1, wherein: the recess includes a first recess for suspending the battery management system and a second recess for accommodating a wire harness, the first recess and the second recess communicating with each other.

4. A bracket according to claim 3, wherein: the number of the convex parts is at least four, the four convex parts are arranged in two rows at intervals, and each row is provided with two convex parts arranged at intervals, so that two concave parts arranged in a crossed manner are formed among the four convex parts;

the mounting surfaces of the two convex parts in each row are respectively used for mounting two end parts of a battery management system, so that the four convex parts are provided with the two battery management systems in parallel, and the two battery management systems are suspended in the same concave part.

5. A support according to claim 4, wherein: two concave parts are arranged in a crisscross manner.

6. A support according to any one of claims 1 to 5, wherein: the convex part and/or the concave part are formed by stamping the mounting plate.

7. A support according to any one of claims 1 to 5, wherein: the convex part is provided with a bulge, and the bulge is convexly arranged on the mounting surface.

8. A support according to claim 7, wherein: the protrusion is formed by stamping the convex part.

9. A support according to any one of claims 1 to 5, wherein: the mounting panel is connected with the backup pad, the backup pad extends along the direction that dorsad the installation face.

10. A bracket according to claim 9, wherein: the one end that the backup pad extends is equipped with the otic placode, the otic placode is equipped with the mounting hole.

11. A support according to any one of claims 1 to 5, wherein: and an insulating layer is arranged on the surface of the bracket.

12. A bracket according to claim 11, wherein: the resistance value of the insulating layer is 10-500m omega.

13. The utility model provides a battery package, includes battery box and battery management system, its characterized in that: the battery box comprises a bottom plate, an explosion-proof valve and the bracket of any one of claims 1 to 12 arranged in the battery box, and the battery management system is arranged on the bracket.

14. The battery pack according to claim 13, wherein: the support is attached to the bottom plate through heat-conducting glue.

15. A battery pack according to any one of claims 13 or 14, wherein: the bottom plate is a liquid cooling plate.

16. The battery pack according to claim 13, wherein: one end of at least one of the concave parts corresponds to the position of the explosion-proof valve.

17. The battery pack according to claim 13, wherein: the battery management system is mounted to the mounting surface of the boss by a fastener.

18. The battery pack according to claim 17, wherein: the length of the fastener passing through the convex part is smaller than the distance between the convex part and the bottom plate.