CN213425142U

CN213425142U - Lithium battery tab support

Info

Publication number: CN213425142U
Application number: CN202022247956.5U
Authority: CN
Inventors: 杨尚勇; 杨德财; 娄隆圣; 连抒翔
Original assignee: Fujian Super Power New Energy Co ltd
Current assignee: Fujian Super Power New Energy Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-11
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a lithium battery tab support, form holistic support body and busbar including moulding plastics. The bracket body comprises a body part, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are formed by respectively extending outwards from two ends of the body part, and the bus bar is fixed on the body part. The same side of the body part, the first fixing part and the second fixing part extends towards the upper side and the lower side respectively to form a protruding part. The utility model provides a lithium battery tab support which is convenient to disassemble and assemble and has stable structure, and the bus bar and the support body are molded into an integral part, thereby being beneficial to fixing the bus bar and being convenient for loading; through set up the bulge in support body one side, can realize the spacing to battery module casing well, improve the stability of producing the science.

Description

Lithium battery tab support

Technical Field

The utility model relates to a lithium cell technical field, in particular to lithium cell utmost point ear support.

Background

The lithium battery is used as an energy battery with high reaction efficiency, strong safety and small volume, and is more and more widely applied, particularly widely applied in the fields of electric automobiles, electric ships and the like. In a lithium battery, in order to prevent technical problems such as short circuit and damage of tabs during installation, transportation and use, a bus bar is generally used for limiting, guiding and supporting the tabs, and then a tab support is used for fixing the bus bar. Among the current lithium cell, busbar and utmost point ear support are split type design usually, pay busbar lock on utmost point ear support through bolt etc. promptly, the inconvenient material loading of this kind of fixed mode, and appear screw looseness etc. unusually after a long time easily for there is the potential safety hazard in the in-process of lithium cell using. Meanwhile, the conventional tab support does not usually have a structure for limiting the lithium battery shell up and down or front and back, so that the lithium battery shell is easy to fall off, displace and the like, and the lithium battery product has poor stability.

Disclosure of Invention

To the technical problem who proposes in the background art, the utility model aims to provide a structural design is reasonable, stability is good and can carry out spacing lithium cell utmost point ear support to lithium cell casing.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a lithium battery tab support comprises a support body and a bus bar which are integrally formed by injection molding. The bracket body comprises a body part, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are formed by respectively extending outwards from two ends of the body part, and the bus bar is fixed on the body part. The same side of the body part, the first fixing part and the second fixing part extends towards the upper side and the lower side respectively to form a protruding part.

Furthermore, the main body is provided with an open slot on the opposite side of the protruding part, the left and right sides of the wall surface of the open slot close to the one side of the protruding part are respectively provided with a through hole which penetrates through the main body from front to back, one side of the busbar is fixed in the open slot, and the other side of the busbar penetrates through the two through holes to form two conductive connecting parts.

Preferably, the left side and the right side of the opening groove are respectively provided with a nickel sheet clamping groove. The welding of negative pole copper tab and busbar is not firm, in order to do benefit to utmost point ear and busbar welding, can install the nickel strap in the open slot, and the nickel strap draw-in groove can make things convenient for the fixed of nickel strap.

Preferably, the front side surface of the body portion extends forward above/below the two conductive connecting portions to form two lugs. One side of the lug support provided with the lug can play an insulating role between adjacent module layers, and one side of the lug support not provided with the lug can facilitate the connection between the adjacent module layers.

Furthermore, the upper and lower surfaces of the first fixing part and the second fixing part are respectively provided with a positioning bulge. Set up the locating hole that supplies the protruding card of location to go into respectively in lithium battery case's upper and lower two sides, during the installation, carry out spacing joint cooperation with the locating hole with the protruding of location for the location of casing is more reliable and stable, is difficult to appear phenomenons such as coming off or displacement.

Furthermore, in order to realize the fixed connection between the tab support and the lithium battery shell, the first fixing part and the second fixing part are respectively provided with one or more vertically through riveting holes.

Furthermore, in order to more stably fix the lithium battery shell, the upper side and the lower side of the middle position of the body part are respectively recessed inwards to form two grooves, and the bottom surface of the groove of the body part is provided with one or more vertically through riveting holes.

Preferably, in order to facilitate the taking and placing of the rivet and prolong the service life of the whole module, a steel sleeve is embedded in the riveting hole.

Furthermore, in order to conveniently and stably fixedly install the information acquisition connector on the tab support, a fixing lug for installing the acquisition connector is fixedly arranged on the front side surface of the body part.

Furthermore, the support body is made of insulating plastics, and the bus bar is made of aluminum. When the lug support is manufactured, the shape of the bus bar is determined, and then the whole injection molding piece is manufactured.

The utility model discloses following beneficial effect has:

1. the bracket body and the bus bar are molded to form an integral part, so that the bus bar is fixed, the structure is more stable and firm, and the feeding is facilitated;

2. the upper side and the lower side of the tab support are respectively provided with a protruding part, and steps formed by the protruding parts can limit the front and back movement of the upper shell and the lower shell of the lithium battery, so that the risk of dislocation and falling of the upper shell and the lower shell is reduced;

3. the middle part of the bracket body is provided with an inward concave groove, so that the left and right displacement of the upper shell and the lower shell can be limited after the bracket is matched with a lithium battery shell, and the product stability is improved;

4. two lugs are arranged on the front side of the support body, one side provided with the lugs can play an insulating role between the upper and lower adjacent module layers, and one side of the lug support, which is not provided with the lugs, can facilitate the connection of conductive copper strips between the upper and lower adjacent module layers;

5. positioning bulges are respectively arranged at the top and the bottom of the first fixing part and the second fixing part, so that the connection stability of the product can be further improved;

6. the front side of the bracket body is provided with the fixing lug, so that the installation of the information acquisition connector can be conveniently and stably realized;

7. the steel sleeve is arranged in the riveting hole, so that the rivet can be conveniently taken and placed, and the service life is prolonged.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of another angle of the present invention.

Fig. 3 is a schematic perspective view of the stent body.

Fig. 4 is a schematic perspective view of the bus bar.

Fig. 5 is an installation schematic diagram of the tab holder of the present invention.

Description of the main component symbols: 1. a stent body; 10. an open slot; 100. a projection; 101. positioning the projection; 102. riveting holes; 103. a groove; 104. a through hole; 105. a nickel sheet clamping groove; 11. a body portion; 111. fixing the ear; 112. a lug; 12. a first fixed part; 13. a second fixed part; 2. a bus bar; 20. a conductive connection portion; 3. and (5) steel sleeve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1-5, a lithium battery tab support comprises a support body 1 and a bus bar 2 which are formed into a whole by injection molding, wherein when the whole tab support is manufactured, the shape of the bus bar 2 is determined, and then the whole injection molding piece is manufactured. Preferably, the bracket body 1 is made of insulating plastic, and the bus bar 2 is made of aluminum.

The bracket body 1 includes a body 11, and a first fixing portion 12 and a second fixing portion 13 respectively extending outward from both ends of the body 11, and the bus bar 2 is fixed on the body 11. The same side of the main body 11, the first fixing portion 12 and the second fixing portion 13 extends towards the upper and lower sides to form a protrusion 100. Preferably, the upper and lower surfaces of the first fixing portion 12 and the second fixing portion 13 are provided with positioning protrusions 101, respectively. The front side of the body 11 is fixedly provided with a fixing lug 111 for mounting the collecting connector. The first fixing portion 12 and the second fixing portion 13 are respectively provided with one or more vertically penetrating riveting holes 102. The upper and lower sides of the middle position of the main body 11 are recessed inwards to form two grooves 103, and the bottom surface of the groove 103 of the main body 11 is provided with one or more vertically through riveting holes 102. Preferably, the staking hole 102 is embedded with a steel sleeve 3.

The main body 11 is provided with an opening groove 10 on the opposite side of the protrusion 100, the left and right sides of the wall surface of the opening groove 10 near one side of the protrusion 100 are respectively provided with a through hole 104 penetrating the main body 11 from front to back, one side of the bus bar 2 is fixed in the opening groove 10, and the other side passes through the two through holes 104 to form two conductive connecting parts 20. Preferably, the left and right sides of the open slot 10 are respectively provided with a nickel sheet slot 105. Preferably, the front side surface of the body portion 11 extends forward above/below the two conductive connecting portions 20 to form two lugs 112.

The utility model discloses a utmost point ear support can realize well that busbar 2's installation is fixed, and busbar 2 can carry on spacingly, direction and support to battery subject's utmost point ear well. Through reasonable structural design, the utility model discloses a lug support can restrict the displacement of lithium cell casing each direction, and casing dislocation, the risk that drops about reducing for lithium cell module's structure is more stable firm.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a lithium battery tab support which characterized in that: the bracket comprises a bracket body and a bus bar, wherein the bracket body is integrally formed by injection molding, the bracket body comprises a body part, a first fixing part and a second fixing part, the first fixing part and the second fixing part are respectively formed by extending outwards from two ends of the body part, the bus bar is fixed on the body part, and the same side of the body part, the first fixing part and the second fixing part respectively extends towards the upper side and the lower side to form a protruding part.

2. The tab holder for a lithium battery as claimed in claim 1, wherein: the main body is provided with an open slot at the opposite side of the projecting part, the left side and the right side of the wall surface of the open slot close to one side of the projecting part are respectively provided with a through hole which penetrates through the main body from front to back, one side of the bus bar is fixed in the open slot, and the other side of the bus bar penetrates through the two through holes to form two conductive connecting parts.

3. The tab holder for a lithium battery as claimed in claim 2, wherein: the left side and the right side of the open slot are respectively provided with a nickel sheet clamping slot.

4. The tab holder for a lithium battery as claimed in claim 2, wherein: the front side surface of the body part extends forwards above/below the two conductive connecting parts to form two lugs respectively.

5. The tab holder for a lithium battery as claimed in claim 1, wherein: the upper and lower surfaces of the first fixing part and the second fixing part are respectively provided with a positioning bulge.

6. The tab holder for a lithium battery as claimed in claim 1, wherein: the first fixing part and the second fixing part are respectively provided with one or more vertically through riveting holes.

7. The tab holder for a lithium battery as claimed in claim 1, wherein: the upper side and the lower side of the middle position of the body part are respectively inwards sunken to form two grooves, and one or more vertically through riveting holes are formed in the bottom surface of the groove of the body part.

8. A tab holder for a lithium battery as claimed in claim 6 or 7, wherein: a steel sleeve is embedded in the riveting hole.

9. The tab holder for a lithium battery as claimed in claim 1, wherein: the front side surface of the body part is fixedly provided with a fixing lug for mounting the acquisition connector.

10. The tab holder for a lithium battery as claimed in claim 1, wherein: the support body is made of insulating plastics, and the busbar is made of aluminum.