CN212625842U

CN212625842U - Busbar support of battery module and battery module

Info

Publication number: CN212625842U
Application number: CN202021411998.1U
Authority: CN
Inventors: 于世梦; 张巧然; 李乐
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-02-26
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a busbar support of battery module, include: the body, be equipped with a plurality of busbar mounting grooves on the body, every all be equipped with joint portion on the inside wall of busbar mounting groove, joint portion includes: the bus bar mounting groove is formed in the bus bar mounting groove, the first limiting clamping protrusion and the limiting clamping hook are arranged on the inner peripheral wall of the bus bar mounting groove in a spaced mode, and the first limiting clamping protrusion and the limiting clamping hook can be clamped on the upper surface of the bus bar together to limit the bus bar in the vertical direction. According to the utility model discloses a busbar support of battery module through all being equipped with first spacing protruding and spacing pothook of card on the inside wall of every busbar mounting groove, can carry out ascending spacing from top to bottom to the busbar, reliably cooperates between this busbar support and the busbar, promotes the connection reliability between busbar support and the busbar.

Description

Busbar support of battery module and battery module

Technical Field

The utility model relates to a battery module technical field particularly, relates to a busbar support and battery module of battery module.

Background

In the related art, the bus bar of the battery module cannot be well fixed on the bus bar support, and the bus bar is easily shaken relative to the bus bar support, so that the connection and the matching between the bus bar and the bus bar support are not reliable.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a bus bar support of battery module, this bus bar support can with the bus bar between reliably cooperate, promote the connection reliability between bus bar support and the bus bar.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a bus bar holder of a battery module, comprising: the body, be equipped with a plurality of busbar mounting grooves on the body, every all be equipped with joint portion on the inside wall of busbar mounting groove, joint portion includes: the bus bar mounting groove is formed in the bus bar mounting groove, the first limiting clamping protrusion and the limiting clamping hook are arranged on the inner peripheral wall of the bus bar mounting groove in a spaced mode, and the first limiting clamping protrusion and the limiting clamping hook can be clamped on the upper surface of the bus bar together to limit the bus bar in the vertical direction.

According to the utility model discloses an embodiment, first spacing calorie of protruding with all be equipped with the direction inclined plane that the downward sloping extends on the spacing pothook.

According to the utility model discloses a second embodiment, first spacing protruding lower surface of card with spacing pothook lower surface respectively to the length that busbar mounting groove center extends is L, and wherein 0.3mm is less than or equal to L and is less than or equal to 1 mm.

According to the utility model discloses a still another embodiment, first spacing card protruding lower surface with clearance between the busbar upper surface is h1, spacing pothook lower surface with clearance between the busbar upper surface is h2, and wherein 0.3mm is less than or equal to h1 is less than or equal to 0.5mm, and 0.3mm is less than or equal to h2 is less than or equal to 0.5 mm.

Optionally, every all be equipped with the spacing card of second on the inside wall of busbar mounting groove be equipped with the spacing groove on the busbar, the spacing card of second is protruding be suitable for with the spacing groove cooperation, the protruding upper surface of the spacing card of second is higher than the busbar upper surface.

Further, a gap between the second limiting clamping protrusion and the inner side wall of the limiting groove is h3, wherein the gap is not less than 0.2mm and not more than h3 and not more than 0.5 mm.

Further, the second limit clamp protrusions comprise two, the two second limit clamp protrusions are oppositely arranged on the inner peripheral wall of the bus bar installation groove, each bus bar is provided with two limit grooves, and the limit grooves are matched with the second limit clamp protrusions in a one-to-one correspondence mode.

According to the utility model discloses a still another embodiment, be equipped with two brace rods on the bottom wall in the busbar mounting groove, the middle part of busbar is formed into the depressed part, two brace rods support the both sides of depressed part lower surface.

According to the utility model discloses a still another embodiment, be equipped with fixed mounting portion on the busbar support, be equipped with the fixed mounting position of undercut on the busbar, fixed mounting portion warp the crimping through the hot melt and is on the fixed mounting position.

Compared with the prior art, the busbar support of battery module have following advantage:

according to the utility model discloses a busbar support of battery module through all being equipped with first spacing protruding and spacing pothook of card on the inside wall of every busbar mounting groove, can carry out ascending spacing from top to bottom to the busbar, reliably cooperates between this busbar support and the busbar, promotes the connection reliability between busbar support and the busbar.

A second object of the present invention is to provide a battery module, include:

the battery pack comprises a plurality of battery cells arranged side by side and a bus bar support according to the embodiment, wherein the bus bar support is arranged above the plurality of battery cells arranged side by side.

Compared with the prior art, battery module have following advantage:

according to the utility model discloses a battery module is protruding and spacing pothook through all being equipped with first spacing card on the inside wall of every busbar mounting groove, can carry out the ascending spacing of upper and lower side to the busbar, reliably cooperates between this busbar support and the busbar, promotes the connection reliability between busbar support and the busbar.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a perspective view of a battery module according to an embodiment of the present invention;

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

fig. 3 is an exploded view of a battery module according to an embodiment of the present invention;

fig. 4 is an enlarged view of a portion B in fig. 3.

Description of reference numerals:

the battery module 100 is provided with a battery case,

a bus bar support 10, a bus bar mounting groove 11, a first limit clamp protrusion 121, a limit clamp hook 122, a guide inclined plane 123, a second limit clamp protrusion 124, a support rib 125, a fixed mounting part 126, a flexible circuit board 127,

the bus bar 20, the limiting groove 21, the concave part 22, the fixed mounting position 23 and the nickel sheet 24.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The busbar mount 10 of the battery module 100 according to the embodiment of the first aspect of the present invention will be described with reference to fig. 1 to 4.

According to the utility model discloses battery module 100's busbar support 10 includes the body, is equipped with a plurality of busbar mounting grooves 11 on the body, and busbar mounting groove 11 is used for installing busbar 20.

As shown in fig. 1, further, a clamping portion is disposed on the inner side wall of each bus bar mounting groove 11, wherein the clamping portion includes a first limiting clamping protrusion 121 and a limiting clamping hook 122, the first limiting clamping protrusion 121 and the limiting clamping hook 122 are disposed on the inner peripheral wall of the bus bar mounting groove 11 at intervals, the first limiting clamping protrusion 121 and the limiting clamping hook 122 can be clamped on the upper surface of the bus bar 20 together to limit the bus bar 20 in the vertical direction, that is, the bus bar 20 is limited in the vertical direction by the joint cooperation of the first limiting clamping protrusion 121 and the limiting clamping hook 122, so that the bus bar 20 is reliably mounted in the bus bar mounting groove 11.

According to the utility model discloses battery module 100's busbar support 10 through all being equipped with first spacing calorie of protruding 121 and spacing pothook 122 on the inside wall of every busbar mounting groove 11, can carry out ascending spacing from top to bottom to busbar 20, reliably cooperates between this busbar support 10 and the busbar 20, promotes the connection reliability between busbar support 10 and the busbar 20.

As shown in fig. 2, according to an embodiment of the present invention, the first limiting protrusion 121 and the limiting hook 122 are both provided with a guiding inclined plane 123 extending downward to facilitate pushing the bus bar 20 downward into the bus bar mounting groove 11. As shown in fig. 1, the guide slope 123 extends obliquely downward and toward one side of the center of the bus bar installation groove 11.

Further, the lower surface of the first limit catching protrusion 121 and the lower surface of the limit catching hook 122 are both flat surfaces, so that when the bus bar 20 is fitted in the bus bar mounting groove 11, the bus bar 20 can be reliably caught in the bus bar mounting groove 11 by the lower surface of the first limit catching protrusion 121 and the lower surface of the limit catching hook 122.

According to the utility model discloses a another embodiment, the length that first spacing block protrusion 121 lower surface and spacing pothook 122 lower surface extend to busbar mounting groove 11 center respectively is L, and wherein 0.3mm is less than or equal to L and is less than or equal to 1mm, specifically, L can get 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm and 1.0 mm. Specifically, the lower surface of the first limiting clamping protrusion 121 and the lower surface of the limiting clamping hook 122 are limited within the range from the center of the bus bar mounting groove 11 to the length L extending to the center of the bus bar mounting groove 11, so that the clamping of the first limiting clamping protrusion 121 and the limiting clamping hook 122 to the bus bar 20 can be more reliable, and the bus bar 20 is not easy to break away from the bus bar mounting groove 11.

According to the utility model discloses a still another embodiment, the clearance between first spacing calorie of protruding 121 lower surface and the busbar 20 upper surface is h1, clearance between spacing pothook 122 lower surface and the busbar 20 upper surface is h2, wherein 0.3mm is less than or equal to h1 is less than or equal to 0.5mm, 0.3mm is less than or equal to h2 is less than or equal to 0.5mm, specifically, h1 can be 0.3mm, 0.4mm and 0.5mm, h2 can be 0.3mm, 0.4mm and 0.5mm, specific h1, h2 can select according to actual need, through injecing h1, h 2's numerical value range within the above-mentioned range, both can make first spacing calorie of protruding 121 lower surface, spacing pothook 122 lower surface respectively with the cooperation allowance between the busbar 20 upper surface, can avoid rocking of busbar 20 in busbar mounting groove 11 again.

As shown in fig. 2, optionally, a second limiting protrusion 124 is disposed on an inner sidewall of each bus bar mounting groove 11, a limiting groove 21 is disposed on the bus bar 20, and the second limiting protrusion 124 is adapted to cooperate with the limiting groove 21. Thus, the bus bar 20 can be limited in the front-back direction and the left-right direction, and the bus bar 20 is further prevented from shaking in the horizontal direction.

The upper surface of the second limit snap 124 is higher than the upper surface of the bus bar 20, and particularly, the upper end of the second limit snap 124 may extend to the opening of the bus bar mounting groove 11, so that the assembly between the bus bar 20 and the bus bar mounting groove 11 may be facilitated. Wherein, the second position-limiting clamping protrusion 124 can be rigidly connected with the inner side wall of the bus bar installation groove 11.

Further, the clearance between the second limiting clamping protrusion 124 and the inner side wall of the limiting groove 21 is h3, wherein 0.2mm is not less than h3 and not more than 0.5mm, specifically, h3 can be 0.2mm, 0.3mm, 0.4mm and 0.5mm, can be selected as required in practical application, and is limited in the above range through the clearance h3 between the second limiting clamping protrusion 124 and the inner side wall of the limiting groove 21, so that not only can the matching allowance between the second limiting clamping protrusion 124 and the inner side wall of the limiting groove 21 be ensured, but also the shaking of the bus bar 20 in the bus bar mounting groove 11 can be avoided, and the connection is more stable and reliable.

Further, the two second limiting clamping protrusions 124 are arranged on the inner peripheral wall of the bus bar mounting groove 11, two limiting grooves 21 are formed in each bus bar 20, and the limiting grooves 21 and the second limiting clamping protrusions 124 are matched in a one-to-one correspondence mode. The two second position-limiting protrusions 124 are asymmetrically disposed with respect to the bus bar installation groove 11. After the bus bar 20 is assembled in the bus bar installation groove 11, the limiting groove 21 and the second limiting clamping protrusion 124 are assembled together, so that the bus bar 20 can be prevented from being reversely assembled, meanwhile, the bus bar 20 can be limited in the front-back direction and the left-right direction, the bus bar 20 can be prevented from moving in the front-back direction and the left-right direction, and the position stability of the bus bar 20 can be ensured.

As shown in fig. 4, according to another embodiment of the present invention, two support ribs 125 are disposed on the bottom wall of the bus bar mounting groove 11, the middle portion of the bus bar 20 is formed as a recessed portion 22, and the two support ribs 125 are supported on both sides of the lower surface of the recessed portion 22, on one hand, the two support ribs 125 have a supporting function on the bus bar 20, and on the other hand, the two support ribs 125 can also have an auxiliary limiting function on the bus bar 20 in the up-down direction and the front-back direction.

According to the utility model discloses a still another embodiment is equipped with fixed mounting portion 126 on the busbar support 10, is equipped with the fixed mounting position 23 of undercut on the busbar 20, and fixed mounting portion 126 is through hot melt deformation crimping on fixed mounting position 23. The lower surface of the fixed mounting portion 126 and the upper surface of the fixed mounting location 23 are in close and zero clearance fit. It can be understood that after the bus bar 20 is assembled in the bus bar installation groove 11, the bus bar 20 is fixed in the bus bar installation groove 11 by the cooperation of the fixing installation portion 126 and the fixing installation site 23, thereby effectively preventing the bus bar 20 from shaking in the bus bar installation groove 11.

The embodiment of the utility model provides an in, can firmly fix busbar 20 on busbar support 10, busbar support 10 in the transportation busbar 20 and nickel piece 24 and FPC (indicate flexible circuit board 127 promptly, one kind of making with polyimide or polyester film as the substrate has high reliability, the excellent compliance printed circuit board) welding department can not the atress produce the voltage acquisition inefficacy problem, busbar 20 can not produce relative motion with busbar support 10 after assembling into battery module 100, can solve in the transportation busbar 20 and busbar support 10 and easily produce great relative motion and the problem that busbar support 10 easily rocked after the assembly of battery module 100 is accomplished.

A second object of the present invention is to provide a battery module 100 including: a plurality of battery cells arranged side by side and a busbar holder 10 according to the above embodiment, the busbar holder 10 being arranged above the plurality of battery cells arranged side by side.

According to the utility model discloses battery module 100 through all being equipped with first spacing calorie of protruding 121 and spacing pothook 122 on the inside wall of every busbar mounting groove 11, can carry out ascending spacing from top to bottom to busbar 20, reliably cooperate between this busbar support 10 and the busbar 20, promote the connection reliability between busbar support 10 and the busbar 20.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bus bar support (10) of a battery module (100), comprising: the body, be equipped with a plurality of busbar mounting grooves (11) on the body, every all be equipped with joint portion on the inside wall of busbar mounting groove (11), joint portion includes: first spacing calorie of protruding (121) and spacing pothook (122), first spacing calorie of protruding (121) with spacing pothook (122) are in spaced apart arrangement on the internal perisporium of busbar mounting groove (11), first spacing calorie of protruding (121) with spacing pothook (122) can catch jointly busbar (20) upper surface is used for right busbar (20) carry out the ascending spacing in upper and lower direction.

2. The bus bar support (10) of a battery module (100) according to claim 1, wherein the first position-limiting snap-in protrusion (121) and the position-limiting snap-in hook (122) are provided with guide slopes (123) extending downward.

3. The bus bar support (10) of the battery module (100) according to claim 1, wherein the lengths of the lower surface of the first limiting clamping protrusion (121) and the lower surface of the limiting clamping hook (122) extending to the center of the bus bar installation groove (11) are both L, and L is greater than or equal to 0.3mm and less than or equal to 1 mm.

4. The bus bar support (10) of the battery module (100) according to claim 1, wherein the gap between the lower surface of the first stopper hook (121) and the upper surface of the bus bar (20) is h1, and the gap between the lower surface of the stopper hook (122) and the upper surface of the bus bar (20) is h2, wherein 0.3mm ≦ h1 ≦ 0.5mm, and 0.3mm ≦ h2 ≦ 0.5 mm.

5. The bus bar support (10) of a battery module (100) according to any one of claims 1 to 4, wherein a second position-limiting protrusion (124) is provided on an inner side wall of each bus bar mounting groove (11), a position-limiting groove (21) is provided on the bus bar (20), the second position-limiting protrusion (124) is adapted to be engaged with the position-limiting groove (21), and an upper surface of the second position-limiting protrusion (124) is higher than an upper surface of the bus bar (20).

6. The bus bar support (10) of a battery module (100) according to claim 5, wherein a gap between the second stopper protrusion (124) and the inner sidewall of the stopper groove (21) is h3, wherein 0.2 mm. ltoreq. h 3. ltoreq.0.5 mm.

7. The bus bar support (10) of the battery module (100) according to claim 5, wherein the number of the second limiting protrusions (124) is two, the two second limiting protrusions (124) are oppositely disposed on the inner peripheral wall of the bus bar mounting groove (11), two limiting grooves (21) are disposed on each bus bar (20), and the limiting grooves (21) and the second limiting protrusions (124) are correspondingly engaged one by one.

8. The bus bar holder (10) of a battery module (100) according to claim 1, wherein two support ribs (125) are provided on an inner bottom wall of the bus bar mounting groove (11), a central portion of the bus bar (20) is formed as a recess (22), and the two support ribs (125) are supported at both sides of a lower surface of the recess (22).

9. The bus bar support (10) of the battery module (100) according to claim 1, wherein the bus bar support (10) is provided with a fixed mounting portion (126), the bus bar (20) is provided with a fixed mounting position (23) recessed downward, and the fixed mounting portion (126) is crimped on the fixed mounting position (23) by thermal fusion deformation.

10. A battery module (100), comprising:

a plurality of battery cells arranged side by side;

the busbar mount (10) according to any of claims 1 to 9, the busbar mount (10) being disposed above the plurality of side-by-side cells.