CN201594560U

CN201594560U - Upper spacer structure of lithium-ion power battery

Info

Publication number: CN201594560U
Application number: CN2009203050223U
Authority: CN
Inventors: 李敬; 脱佳彬; 刘凤龙; 荣强; 邱扬; 杜磊; 吕小梅; 叶茂
Original assignee: Tianjin Lishen Battery JSCL
Current assignee: Tianjin Lishen Battery JSCL
Priority date: 2009-06-25
Filing date: 2009-06-25
Publication date: 2010-09-29
Anticipated expiration: 2019-06-25

Abstract

The utility model provides an upper spacer structure of a lithium-ion power battery, which is formed by an anode post insulating matching hole, a cathode post insulating matching hole, a pole set insulating face, a cover insulating face and a post positioning groove. The cover insulating face is the upper surface of the upper spacer structure, the pole set insulating face is the lower surface of the upper spacer structure, the anode post insulating matching hole and the cathode post insulating matching hole are respectively disposed on two sides of the upper spacer structure, and the post positioning groove is arranged at the centre of the upper spacer structure. With the anode post insulating matching hole, the cathode post insulating matching hole and the post positioning groove, the upper spacer structure with positioning engagement of posts is capable of ensuring battery safety and effectively preventing possible battery short circuiting, has great protection function in lithium-ion power battery manufacturing, guarantees no falling off of anode posts and cathode posts, and isolation of pole sets, and plays necessary functions of insulation protection and positioning.

Description

A kind of lithium-ion-power cell Upper gasket structure

Technical field

The utility model relates to a kind of battery Upper gasket structure, especially a kind of lithium-ion-power cell Upper gasket structure.

Background technology

The range of application of lithium ion battery more and more widely, particularly capacity is fast-developing especially in the development of the above battery of 10Ah in recent years.The built-in electrical insulation of battery electrode column comprises between the positive and negative terminals simultaneously, and the insulation between pole and cap, the housing also has the also further investigation day by day of requirements such as positioned internal of pole.

The insulation safety of battery be electrokinetic cell make and design process in key technology emphasis and requirement, if utmost point group and pole connect and can cause internal short-circuit of battery in the lithium battery use, produce serious safety problem, even explode.Slim Upper gasket simple in structure, function singleness is generally adopted in the most at present big vehicle-mounted dynamic lithium battery of capacity inside; can't more effectively play positioning action to positive and negative terminals; only to a certain extent insulation there is certain effect; to more then not effectively protection of heavy-current discharge, thereby there is very big potential safety hazard.Therefore specialized designs is a kind of has the Upper gasket of location and insulating effect at the lithium-ion-power cell pole, is to have very much the production practices meaning.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of lithium-ion-power cell Upper gasket structure.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A kind of lithium-ion-power cell Upper gasket structure, form by positive terminal insulation coordination hole, negative terminal insulation coordination hole, utmost point group insulating surfaces, cap insulating surfaces and pole location notch, wherein the cap insulating surfaces is the upper surface of described Upper gasket structure, utmost point group insulating surfaces is the lower surface of described Upper gasket structure, positive terminal insulation coordination hole and negative terminal insulation coordination hole lay respectively at the both sides of described Upper gasket structure, and the pole location notch is positioned at the central authorities of described Upper gasket structure.

Preferably, above-mentioned lithium-ion-power cell Upper gasket structure, described positive terminal insulation coordination hole and negative terminal insulation coordination hole are the square hole shape.

The beneficial effects of the utility model are:

(1) above-mentioned lithium-ion-power cell Upper gasket structure is provided with positive and negative pole insulation coordination hole and pole location notch, and the Upper gasket structure that this pole location cooperates can guarantee the fail safe of battery, effectively prevents the possibility of battery short circuit;

(2) in the lithium-ion-power cell manufacture process, described Upper gasket structure can play very big protective effect, guarantees that positive and negative terminals can not come off, and isolates with utmost point group, has played necessary insulation protection and positioning action;

(3) insulation safety for the electrokinetic cell heavy-current discharge has played the sound assurance effect, can satisfy the above great-capacity power battery discharge insulating requirements of 10A electric current, improve simultaneously the pole efficiency of assembling greatly, simplify assembly technology, operation, reduce the cost of production and product, improve product assembly quality, strengthen the competitiveness of product in market.

Description of drawings

Fig. 1 is the structural representation of a kind of lithium-ion-power cell Upper gasket structure of providing of the utility model;

Fig. 2 is the vertical view of a kind of lithium-ion-power cell Upper gasket structure of providing of the utility model;

Fig. 3 is the upward view of a kind of lithium-ion-power cell Upper gasket structure of providing of the utility model.

Among the figure: 2-negative terminal insulation coordination hole, 1-positive terminal insulation coordination hole

3-utmost point group insulating surfaces 4-cap insulating surfaces 5-pole location notch

Embodiment

For further specifying the utility model, existing conjunction with figs. is described in detail:

As Fig. 1, Fig. 2 and shown in Figure 3, described lithium-ion-power cell Upper gasket structure, form by positive terminal insulation coordination hole 1, negative terminal insulation coordination hole 2, utmost point group insulating surfaces 3, cap insulating surfaces 4 and pole location notch 5, wherein cap insulating surfaces 4 is the upper surface of described Upper gasket structure, utmost point group insulating surfaces 3 is the lower surface of described Upper gasket structure, internal poles group and positive and negative pole and battery cap are separated, form insulation protection; Positive terminal insulation coordination hole 1 and negative terminal insulation coordination hole 2 are the square hole shape, lay respectively at the both sides of described Upper gasket structure, corresponding with the positive and negative pole position of lithium-ion-power cell, the threaded portion of positive and negative pole can pass from positive terminal insulation coordination hole 1 and negative terminal insulation coordination hole 2 respectively; Pole location notch 5 is positioned at the central authorities of described Upper gasket structure, cooperates with the platform location that is located by connecting of positive and negative pole.

The assembling process of lithium-ion-power cell Upper gasket structure described in the utility model:

At first positive and negative pole is passed positive terminal insulation coordination hole 1 and negative terminal insulation coordination hole 2 during assembling respectively, the location of again platform that is located by connecting of positive and negative pole being packed into from pole location notch 5, with the pole nut screwing clamping of battery, form insulation and location then with pole.

Described lithium-ion-power cell Upper gasket structure, fixing the positive and negative pole insulation of lithium-ion-power cell, guarantee in use can not produce phenomenons such as the short circuit that comes off; Guarantee by positive and negative pole

insulation coordination hole

1,2 that poles can not contact with housing and increased air-tightness when being short-circuited greatly, and by cooperating with pole location notch 5, avoided pole use and assembly project in rotate with moment of torsion, generation with short circuit phenomenon effectively prevents to come off.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. lithium-ion-power cell Upper gasket structure, it is characterized in that: form by positive terminal insulation coordination hole, negative terminal insulation coordination hole, utmost point group insulating surfaces, cap insulating surfaces and pole location notch, wherein the cap insulating surfaces is the upper surface of described Upper gasket structure, utmost point group insulating surfaces is the lower surface of described Upper gasket structure, positive terminal insulation coordination hole and negative terminal insulation coordination hole lay respectively at the both sides of described Upper gasket structure, and the pole location notch is positioned at the central authorities of described Upper gasket structure.

2. a kind of lithium-ion-power cell Upper gasket structure according to claim 1 is characterized in that: described positive terminal insulation coordination hole and negative terminal insulation coordination hole are the square hole shape.