CN210897452U

CN210897452U - Copper bar fixing device of battery pack

Info

Publication number: CN210897452U
Application number: CN201922449836.0U
Authority: CN
Inventors: 刘学文; 李方哲
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-06-30
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a copper bar fixing device of battery package, copper bar fixing device of battery package includes: the fixed seat is used for fixing the copper bar of the battery pack; the connecting piece, the connecting piece with the fixing base is connected, the connecting piece has joint portion, the space of collapsing is injectd to the inside of joint portion, the surface of joint portion is equipped with the joint turn-ups. From this, through setting up the space of bursting and the joint turn-ups that contracts, can make joint portion assemble with the fixed orifices of equidimension not, also can make joint portion assemble with the mounting panel of different thickness, can promote copper bar fixing device's commonality to can make copper bar fixing device set up in the battery package of different specifications, reduce copper bar fixing device's development cost, and then can reduce the manufacturing cost of battery package.

Description

Copper bar fixing device of battery pack

Technical Field

The utility model relates to a battery package technical field, in particular to copper bar fixing device of battery package.

Background

At present, high-voltage devices in the battery pack are connected with each other through copper bars to form a high-voltage loop, the copper bars are formed by bendable hard copper bars or foldable soft copper bars, and in order to prevent damages to a module output electrode and the bending/folding positions of the copper bars during vibration, the copper bars generally need to be fixed on a module end plate of the battery pack or a lower shell of the battery box.

Among the correlation technique, current copper bar fixing device all has the dimensional range requirement to different mounting panel thickness and fixed orifices size, and the copper bar fixing device that designs out is difficult to accomplish the assembly with different thick and fixed orifices diameter sizes, and copper bar fixing device's commonality is relatively poor, to the battery package of different specifications, needs the copper bar fixing device of a large number of specifications can realize the assembly of battery package, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a copper bar fixing device of battery package to solve the poor problem of copper bar fixing device commonality of battery package.

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

a copper bar fixing device of a battery pack comprises: the fixed seat is used for fixing the copper bar of the battery pack; the connecting piece, the connecting piece with the fixing base is connected, the connecting piece has joint portion, the space of collapsing is injectd to the inside of joint portion, the surface of joint portion is equipped with the joint turn-ups.

In some examples of the invention, the joint flange is arranged along a circumference of the joint portion.

In some examples of the present invention, the joint flange is a plurality of flanges spaced apart in a height direction of the joint portion.

In some examples of the invention, the clip flange extends obliquely upward from an outer surface of the clip portion.

In some examples of the invention, the connector is detachably connected to the holder.

In some examples of the invention, the connecting member further has a first connecting portion, and the fixing base has a second connecting portion connected to the first connecting portion.

In some examples of the invention, the outer surface of the first connecting portion has a first joint protrusion, the second connecting portion defines an installation cavity, and the inner side wall of the installation cavity has a second joint protrusion engaged with the first joint protrusion.

In some examples of the invention, the first joint protrusion is along a circumferential extension of the first connection portion, and the second joint protrusion is along a circumferential extension of the installation cavity.

In some examples of the present invention, the connector is a piece of PA66 material, and the holder is a piece of PA66 and a piece of glass fiber material.

In some examples of the present invention, the copper bar fixing device of the battery pack further comprises: the supporting flange is arranged on the clamping portion and extends along the circumferential direction of the clamping portion, and the supporting flange is close to the upper end of the clamping portion.

Compared with the prior art, copper bar fixing device of battery package have following advantage:

according to the utility model discloses a copper bar fixing device of battery package through setting up the space and the joint turn-ups that bursts to contract, can make joint portion assemble with the fixed orifices of equidimension not, also can make joint portion assemble with the mounting panel of different thickness, can promote copper bar fixing device's commonality to can make copper bar fixing device set up in the battery package of different specifications, reduced copper bar fixing device's development cost, and then can reduce the manufacturing cost of battery package.

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 schematic view of a copper bar fixing device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of the copper bar fixing device according to the embodiment of the present invention;

fig. 3 is an exploded view of the copper bar fixing device according to the embodiment of the present invention.

Description of reference numerals:

a copper bar fixing device 10;

a fixed seat 1; a second connecting portion 11; a mounting cavity 12; a second catching projection 13; a lower case 14; an upper cover 15; a copper bar fixing space 16;

a connecting piece 2; a clip portion 21; a crush space 22; clamping a flanging 23; a first connection portion 24; a first catching projection 25;

supporting the flange 3.

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.

As shown in fig. 1-3, the copper bar fixing device 10 of the battery pack according to the embodiment of the present invention includes: a fixed seat 1 and a connecting piece 2. Fixing base 1 includes casing 14 and upper cover 15 down, and the cross section of casing 14 and upper cover 15 all constructs for the U type down, and casing 14 and upper cover 15 joint are in the same place down, and casing 14 and upper cover 15 are injectd copper bar fixed space 16 down, and the copper bar is installed in copper bar fixed space 16. Connecting piece 2 is connected with fixing base 1, and connecting piece 2 has joint portion 21, and the inside of joint portion 21 limits the space 22 that contracts of bursting, and the surface of joint portion 21 is provided with joint turn-ups 23.

Specifically, when fixing the copper bar, fix the copper bar installation in copper bar fixed space 16 earlier, then install joint portion 21 in the module end plate in the battery package or the fixed orifices on the mounting panel of casing 14 under the battery box, make joint turn-ups 23 joint and fixed orifices joint, realize the fixed of copper bar.

In the prior art, for battery packs of different models and different service environments, the fixing hole connection with the module end plate or the battery box lower casing 14 can be realized only by the clamping portions 21 of various different specifications. And in this application, because the inside of joint portion 21 prescribes a limit to the space 22 that contracts of ulcerate, when joint portion 21 assembles with the fixed orifices, under the effect of pressure, joint turn-ups 23 can move towards the inside of joint portion 21, make joint turn-ups 23 can be in the same place with the fixed orifices joint, thereby make joint portion 21 carry out the joint cooperation with the fixed orifices of not unidimensional size, and, when the thickness of installation plate is great, can set up the internal thread on the internal face of fixed orifices, joint turn-ups 23 stretches into behind the fixed orifices, joint turn-ups 23 can be in the same place with the internal thread joint on the internal face of fixed orifices, thereby realize assembling with the fixed orifices of different plate thicknesses. Set up like this and to make joint portion 21 assemble with the not fixed orifices of unidimensional size, also can make joint portion 21 assemble with the mounting panel of different thickness, can promote copper bar fixing device 10's commonality to can make copper bar fixing device 10 set up in the battery package of different specifications, reduced copper bar fixing device 10's development cost, and then can reduce the manufacturing cost of battery package.

From this, through setting up the space 22 that bursts and the turn-ups 23 of joint, can make joint portion 21 assemble with the fixed orifices of equidimension not, also can make joint portion 21 assemble with the mounting panel of different thickness, can promote copper bar fixing device 10's commonality to can make copper bar fixing device 10 set up in the battery package of different specifications, reduced copper bar fixing device 10's development cost, and then can reduce the manufacturing cost of battery package.

The utility model discloses an in some embodiments, joint turn-ups 23 can be arranged along the circumference direction extension of joint portion 21, so set up the area that sets up that can increase joint turn-ups 23, and joint portion 21 is installed back in the fixed orifices, can guarantee joint turn-ups 23 and fixed orifices joint together to can guarantee copper bar fixing device 10 and module end plate or battery box casing 14's installation reliability down.

The utility model discloses an in some embodiments, joint turn-ups 23 can set up to a plurality ofly, a plurality of joint turn-ups 23 are arranged along the direction of height interval of joint portion 21, set up the quantity that sets up that can increase joint turn-ups 23 like this, joint portion 21 is installed back in the fixed orifices, can make joint portion 21 assemble with thicker mounting panel, thereby can enlarge copper bar fixing device 10's application range, and then can further promote copper bar fixing device 10's commonality, and, through setting up a plurality of joint turn-ups 23, can make joint portion 21 and more firm of fixed orifices joint, can prevent joint portion 21 and fixed orifices separation.

The utility model discloses an in some embodiments, as shown in FIG. 1, joint turn-ups 23 upwards extends from the surface slope of joint portion 21 and arranges, and joint portion 21 installs back in the fixed orifices, so set up and to guarantee that joint turn-ups 23 can be in the same place with the fixed orifices joint, can make joint turn-ups 23 arrange the form more reasonable.

In some embodiments of the present invention, the connecting member 2 is detachably connected to the fixing base 1. Wherein, in prior art, copper bar fixing device is integrated into one piece spare, and copper bar fixing device's connecting piece can not be changed. And in this application, be connected through connecting

piece

2 and 1 detachably of fixing base, to the fixed orifices of equidimension not, can adopt the mode through changing connecting piece 2 and carry out the joint with the fixed orifices of equidimension not to make copper bar fixing device 10 install in the fixed orifices of equidimension not, and then make the design development cost of connecting piece 2 minimize.

In some embodiments of the utility model, connecting piece 2 can set up to the better PA66(Polyamide 66-Polyamide 66) material piece of elasticity, also can understand that connecting piece 2 is made by PA66 material, sets up the structural strength that can promote connecting piece 2 like this, can avoid connecting piece 2 fracture to can solve the relatively poor easy problem of breaking of connecting piece 2 toughness. And, fixing base 1 can set up to the great PA66 of intensity and the glass fiber material spare, need to explain that fixing base 1 is made by PA66 material and the mixing of glass fiber material, compares with prior art, so sets up to make the thinner lighter that lower casing 14 and upper cover 15 do, can reduce the weight of copper bar fixing device 10, also can reduce the manufacturing cost of copper bar fixing device 10.

In some embodiments of the present invention, as shown in fig. 1 to 3, the connecting member 2 may further have a first connecting portion 24, and the lower housing 14 of the fixing base 1 may have a second connecting portion 11 connected to the first connecting portion 24, so that the connecting member 2 and the lower housing 14 can be assembled together by connecting the first connecting portion 24 and the second connecting portion 11.

In some embodiments of the present invention, as shown in fig. 2, the outer surface of the first connecting portion 24 may have a first clamping protrusion 25, the second connecting portion 11 may define the mounting cavity 12, and the inner side wall of the mounting cavity 12 may have a second clamping protrusion 13 clamped with the first clamping protrusion 25. Wherein, during assembly connecting piece 2 and lower casing 14, insert installation cavity 12 with first connecting portion 24 from the lower extreme opening of second connecting portion 11 in, make the protruding 25 joints of first joint on the upper surface of the protruding 13 of second joint, the protruding 13 of second joint plays limiting displacement to the protruding 25 of first joint, can avoid the protruding 25 and the installation cavity 12 separation of first joint to can fix the copper bar better.

In some embodiments of the utility model, first joint is protruding 25 can be arranged along the circumference direction extension of first connecting portion 24, and second joint is protruding 13 can be arranged along the circumference direction extension of installation cavity 12, sets up like this and can increase the setting area of first joint arch 25 and the protruding 13 of second joint, can increase the joint area of first joint arch 25 and the protruding 13 of second joint to can make first joint arch 25 install firmly in installation cavity 12.

In some embodiments of the present invention, as shown in fig. 1 to 3, the copper bar fixing device 10 may further include: support turn-ups 3, support turn-ups 3 and can set up in joint portion 21, support turn-ups 3 moreover and arrange along the circumference extension of joint portion 21, support turn-ups 3 and be close to the upper end setting of joint portion 21. Wherein, back in the fixed orifices on the mounting panel of casing 14 under the module end plate of joint portion 21 installation in the battery package or the battery box, support turn-ups 3 can be in the same place with the mounting panel support, can prevent that connecting piece 2 from taking place to be crooked for the mounting panel.

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 copper bar fixing device (10) of a battery pack, comprising:

the fixing seat (1) is used for fixing a copper bar of the battery pack;

connecting piece (2), connecting piece (2) with fixing base (1) are connected, connecting piece (2) have joint portion (21), the inside of joint portion (21) is injectd and is crumpled space (22), the surface of joint portion (21) is equipped with joint turn-ups (23).

2. The copper bar fixing device (10) of the battery pack as claimed in claim 1, wherein the snap-in flanges (23) are arranged along the circumference of the snap-in portion (21).

3. The copper bar fixing device (10) of the battery pack as claimed in claim 1, wherein the plurality of clamping flanges (23) are provided, and the plurality of clamping flanges (23) are spaced apart along the height direction of the clamping portion (21).

4. The copper bar fixing device (10) of the battery pack as claimed in claim 1, wherein the snap flanges (23) extend obliquely upward from the outer surface of the snap portion (21).

5. The copper bar fixing device (10) of the battery pack as claimed in claim 1, wherein the connecting piece (2) is detachably connected with the fixing base (1).

6. The copper bar fixing device (10) of the battery pack as claimed in claim 5, wherein the connecting member (2) further has a first connecting portion (24), and the fixing base (1) has a second connecting portion (11) connected to the first connecting portion (24).

7. The copper bar fixing device (10) of the battery pack as claimed in claim 6, wherein the outer surface of the first connecting portion (24) is provided with a first clamping protrusion (25), the second connecting portion (11) defines a mounting cavity (12), and the inner side wall of the mounting cavity (12) is provided with a second clamping protrusion (13) clamped with the first clamping protrusion (25).

8. The copper bar fixing device (10) of the battery pack as claimed in claim 7, wherein the first clamping protrusion (25) extends along a circumferential direction of the first connecting portion (24), and the second clamping protrusion (13) extends along a circumferential direction of the mounting cavity (12).

9. The copper bar fixing device (10) of the battery pack as claimed in claim 1, wherein the connecting member (2) is a piece of PA66 material, and the fixing seat (1) is a piece of PA66 and glass fiber material.

10. The copper bar fixing device (10) of the battery pack as recited in claim 1, further comprising: the support turn-ups, the support turn-ups is located joint portion (21) and edge the circumference of joint portion (21) extends, the support turn-ups is close to the upper end setting of joint portion (21).