CN206774617U

CN206774617U - Battery conductive connection sheet and full lug core

Info

Publication number: CN206774617U
Application number: CN201720604581.9U
Authority: CN
Inventors: 黄文弘
Original assignee: Dongguan Qiao Steps On Energy-Conservation Science And Technology Ltd
Current assignee: Dongguan Qiao Steps On Energy-Conservation Science And Technology Ltd
Priority date: 2017-05-26
Filing date: 2017-05-26
Publication date: 2017-12-19
Anticipated expiration: 2027-05-26

Abstract

A kind of battery conductive connection sheet and full lug core, wherein, battery conductive connection sheet includes an elongated location-plate, electrically it is connected for the connector assembly with battery top, the side arc of elongated location-plate one end extends downwardly one first arc, and the bottom of the first arc extends downwardly one first riser；The opposite side arc of elongated location-plate one end extends downwardly one second arc, and a drops Section Space is formed between the first arc, the second arc, and the bottom of the second arc extends downwardly one second riser, and the second riser is parallel to the first riser.And full lug core includes an at least core body and is respectively formed in the lug group of core body both sides, the top of any lug group is in water droplet section shape, for accommodating and being incorporated into the drops Section Space formed between the first arc recess and the second arc recess.

Description

Battery conductive connection sheet and full lug core

Technical field

A kind of conductive connecting piece is the utility model is related to, espespecially one kind can effectively reduce interior resistance so that conductive smooth, and Reduce the battery conductive connection sheet of self-discharge rate and full lug core.

Background technology

Lithium cell core used at present, mainly includes a housing, electrolyte solution and lithium battery coiling is placed with built in housing Core, by positive plate, barrier film and negative plate, continuously winding forms lithium battery coiling core.Wherein, positive plate welding positive pole ear, positive pole Lug is welded in inner walls again, housing is electrically connected with positive terminal.And negative plate welding negative lug, negative pole Lug is then welded on the bottom of the negative terminal of housing upwards.Thus, you can pass through positive terminal and negative terminal After the external screw thread of column top screws togather a nut respectively, different binding posts is fixed respectively, to export positive and negative electricity respectively.However, Above-mentioned negative lug is drawn in addition by negative plate, then is welded in the bottom of negative terminal, and its procedure is numerous and diverse；And positive pole pole Ear is welded in inner walls and negative lug is welded in negative terminal, and the quality of its pad is difficult to control, and is often point-like Contact, therefore, easily cause the problem of conductive and radiating is bad, be only suitable for the energy storage electricity consumption of low current, be not suitable for high magnification The charge and discharge of high current use.

And in order to solve the above problems, have a kind of metal plate of conductive connecting piece with an outline in in-line at present It is stamped to form, the conductive connecting piece after being molded includes an elongated location-plate, a bending plate and one first extension board, bending plate Extended vertically downward by one end of elongated location-plate, the first extension board is extended by the side vertical-horizontal of bending plate.Whereby, you can When elongated location-plate is electrically connected with the connector assembly of a lithium cell core, make the lug group of the first extension board and lithium cell core Electrically connected in a manner of large area, and the charge and discharge use demand of high magnification high current can be met.But said structure is in reality Test can not only make interior resistance increase and reduce conductance in use, because bent angle is too many and surface area is larger, and can produce compared with Big self-discharge rate and influence properties of product.

Utility model content

In view of this, in order to provide it is a kind of be different from the structure of prior art, and improve the shortcomings that above-mentioned, inventor's product is more The experience in year and constantly research and development improve, and have generation of the present utility model then.

A purpose of the present utility model is to provide a kind of battery conductive connection sheet and full lug core, existing that can solve Being conductively connected sector-meeting makes interior resistance increase and reduce conductance, and can produce larger self-discharge rate and influence asking for properties of product Topic, and interior resistance can be effectively reduced, so that it is conductive smooth, and the surface area of conductive connecting piece is reduced, to reduce self-discharge rate.

In order to achieve the above object, the battery conductive connection sheet set by the utility model includes an elongated location-plate, one first Extension board and one second extension board.Wherein, the length direction of the elongated location-plate has a first end and is in reverse to first end One second end, elongated location-plate with a connector assembly on a battery top for being electrically connected；First extension board includes one First arc and one first riser, the first arc are extended downwardly by the second end side arc of elongated location-plate, and first is vertical Plate is extended downwardly by the bottom of the first arc with the angle of vertical long location-plate；Second extension board includes one second arc Plate and one second riser, the second arc are extended downwardly by the second end opposite side arc of elongated location-plate, make the second arc Recess and the first arc recess between form a drops Section Space, and the second riser is by the bottom of the second arc Extended downwardly with the angle of vertical long location-plate, the second riser is parallel to the first riser.

During implementation, the elongated location-plate includes location division, kink and the extension sequentially extended by length direction, location division Electrically it is connected for the connector assembly with battery top, kink is by one end of location division with the direction away from the end with one jiao Degree level extends downwardly；Extension is horizontal-extending with the direction away from the end by one end of kink, and the first arc is by extending The side arc in portion is extended downwardly, and the second arc is extended downwardly by the opposite side arc of extension.

Full lug core set by the utility model has the given shape for coordinating above-mentioned battery conductive connection sheet, including extremely A few core body and the lug group for being respectively formed in core body both sides, the top of any lug group is in water droplet section shape, is supplied Accommodate and be incorporated into the drops Section Space formed between the second arc recess and the first arc recess.

The beneficial effects of the utility model are：Interior resistance can effectively be reduced so that conduction is smooth, and reduces self-discharge rate.

Brief description of the drawings

Fig. 1 is the three-dimensional appearance schematic diagram of lithium cell core before assembling；

Fig. 2 is the use state that battery conductive connection sheet of the present utility model and full lug core are assembled in lithium cell core Figure；

Fig. 3 is battery conductive connection sheet of the present utility model and the component exploded view of full lug core before assembling；

Fig. 4 is the three-dimensional appearance schematic diagram of the preferred embodiment of battery conductive connection sheet of the present utility model.

Description of reference numerals

The lower house of 1 lithium cell core 10

The 11 full positive pole ear groups of lug core 111

The core body of 112 negative lug group 113

The top plate of 12 cover plate 121

The thermal interface platform of 122 insulating trip 13

The conductive rivet of 14 gum cover 15

The battery conductive connection sheet of 16 insulating barrier 2

The 21 elongated first ends of location-plate 211

The location division of 212 second end 213

The extension of 214 kink 215

The extension board of 216 insulation board 22 first

The riser of 221 first arc 222 first

The arc of 23 second extension board 231 second

232 second risers.

Embodiment

To further appreciate that the utility model, below according to preferred embodiment, coordinate accompanying drawing, figure number, this practicality is new The specific constitution content of type and its it is reached the effect of describe in detail it is as follows.

Battery conductive connection sheet of the present utility model with a connector assembly on a battery top for being electrically connected.Such as figure 1st, exemplified by the lithium cell core 1 shown in Fig. 2, the lithium cell core 1 mainly includes a lower house 10, and lower house 10 has for top to be opened The hollow rectangular body of mouth, lower house 10 is interior to accommodate at least one full lug core 11, and the top of lower house 10 is covered with a cover plate 12 Close, to close the opening.Cover plate 12 has a top plate 121 and an insulating trip 122 for upper-lower overlapping, and two thermal interfaces are put down The top of two gum covers 14 in the plate face of cover plate 12, two battery conductive connection sheets 2 are located at insulating trip to platform 13 respectively respectively 122 down either side, and riveted respectively with conductive rivet 15, to form positive and negative electrode conductive path respectively.Two battery conductives connect Contact pin 2 is respectively welded in the positive pole ear group 111 and negative lug group 112 of at least one full both sides of lug core 11, full lug An at least insulating barrier 16 is provided between the outer peripheral edge of core 11 and the inwall of lower house 10, to prevent short circuit.

During implementation, battery conductive connection sheet 2 of the present utility model can be that positive conductive connection sheet or negative pole are led Electric connecting sheet.Refer to shown in Fig. 3, Fig. 4, it is the preferred embodiment of battery conductive connection sheet 2 of the present utility model, and it is one Individual in T shape or elongated metal flat plate buckling probably in T shape forms, including an elongated location-plate 21, one first extension board 22 and one second extension board 23.

The length direction of the elongated location-plate 21 has first end 211 and is in reverse to the second end 212 of first end 211, elongated Location-plate 21 includes a location division 213, a kink 214 and the extension sequentially extended towards the second end 212 by first end 211 Portion 215, there are two through holes in the plate face of location division 213, by the riveting of two conductive rivets 15, to make elongated location-plate 21 Electrically it is connected with a connector assembly on the top of lithium cell core 1.Kink 214 is by one end of location division 213 with the remote end Direction is extended downwardly with an angle level, and extension 215 is prolonged by one end of kink 214 with the direction level away from the end Stretch, an elongated or probably elongated appearance is formed between the subjacent and kink 214 so as to making location division 213 Between being empty, to accommodate an insulation board 216.

First extension board 22 includes one first arc 221 and one first riser 222, and the first arc 221 is by extending The side arc in portion 215 extends downwardly, and the first riser 222 is by the bottom of the first arc 221 with vertical long location-plate 21 Angle extends downwardly.Second extension board 23 includes one second arc 231 and one second riser 232, and the second arc 231 is by prolonging The opposite side arc of extending portion 215 extends downwardly, and makes shape between the recess of the second arc 231 and the recess of the first arc 221 Into the space in a drops section, the second riser 232 is by the bottom of the second arc 231 with the angle of vertical long location-plate 21 Extend downwardly, the second riser 232 is parallel to the first riser 222.

Full lug core 11 of the present utility model has the given shape for coordinating above-mentioned battery conductive connection sheet 2, including extremely A few core body 113 and the lug group for being respectively formed in the both sides of core body 113, wherein, full lug core 11 is preferably with length Bar shaped positive plate, the first barrier film, strip negative plate and the second barrier film, which are sequentially laminated to wind again, to be formed, the volume after winding The side of core body 113 forms multiple positive pole ears, and opposite side forms multiple negative lugs, and after being laminated and pressurizeing respectively, Form a positive pole ear group 111 and a negative lug group 112.And the top of two lug groups is in water droplet section shape respectively, so as to It is respectively accommodated in two drops formed between two recesses of the first arc 221 and two recesses of the second arc 231 In Section Space, and two the first extension boards 22 and two the second extension boards 23 are incorporated into volume in a manner of large-area welding respectively In the positive pole ear group 111 and negative lug group 112 of the both sides of core body 113.

Therefore, the utility model has the following advantages that：

1st, conductive connecting piece of the present utility model is integrally formed with a metallic plate punching press, and multiple extension boards can be with big face Product mode is electrically connected with lug group, therefore, can not only be made the voltage of conduction and electric current stable, be met high magnification high current Charge and discharge use demand, and can effectively radiate, to increase product service life, and ensure safe to use.

2nd, water droplet is formed between the first arc recess and the second arc recess of conductive connecting piece of the present utility model Shape Section Space, and the lug group top of full lug core has the drops section for coordinating the space, accordingly, it is capable to effectively reduce Each bent angle is to reduce interior resistance, so that conductive smooth to improve conductive effectiveness.

3rd, conductive connecting piece of the present utility model has less bending, and whole surface area is greatly reduced, therefore, can be with Self-discharge rate is effectively reduced, to extend the service life of core.

In summary, it really can reach expected purpose according to content disclosed above, the utility model, there is provided one kind is not only The charge and discharge use demand of high magnification high current can be met, resistance is to improve conductive effectiveness in reduction, and can reduce self-discharge rate With the battery conductive connection sheet for extending the core life-span and full lug core, the value that is utilized in great industry, it is special propose in accordance with the law it is special Profit application.

Claims

A kind of 1. battery conductive connection sheet, it is characterised in that including：

One elongated location-plate, its length direction have a first end and are in reverse to one second end of the first end, the elongated location-plate For being electrically connected with a connector assembly on a battery top；

One first extension board, including one first arc and one first riser, first arc should by the elongated location-plate Second end side arc extends downwardly, and first riser by the bottom of first arc with the angle of the vertical elongated location-plate Degree extends downwardly；And

One second extension board, including one second arc and one second riser, second arc should by the elongated location-plate Second end opposite side arc extends downwardly, and makes to form a water between the recess of second arc and the recess of first arc Drop-wise Section Space, and second riser from the bottom of second arc with the angle of the vertical elongated location-plate to downward Stretch, second riser is parallel to first riser.
2. battery conductive connection sheet as claimed in claim 1, it is characterised in that the elongated location-plate is included by length direction sequentially A location division, a kink and an extension for extension, the location division are supplied with the connector assembly on the battery top electrically Connection, the kink are extended downwardly by one end of the location division with the direction away from the end with an angle level；The extension by One end of the kink is horizontal-extending with the direction away from the end, and first arc is from the side arc of the extension to downward Stretch, second arc is extended downwardly by the opposite side arc of the extension.
3. a kind of full lug core for coordinating the battery conductive connection sheet described in claim 1, it is characterised in that including at least one Core body and the lug group for being respectively formed in the core body both sides, the top of any lug group is in water droplet section shape, is supplied In the drops Section Space for accommodating and being incorporated into the second arc recess and being formed between the first arc recess.