CN202839774U

CN202839774U - Battery plate cover

Info

Publication number: CN202839774U
Application number: CN201220423030XU
Authority: CN
Inventors: 郑清洲
Original assignee: Individual
Current assignee: Liu Junchuan
Priority date: 2012-08-24
Filing date: 2012-08-24
Publication date: 2013-03-27
Anticipated expiration: 2022-08-24

Abstract

The utility model provides a battery plate cover which comprises a plate cover body, a conducting terminal which is arranged in a through hole in the plate cover body in a penetrating mode, and an insulation sleeve body which is manufactured between the plate cover body and the conducting terminal in a plastic injection mode, wherein the insulation sleeve body comprises an insulation area section filled between the through hole and the conducting terminal, a first shoulder portion arranged on the outer plate surface of the plate cover body, and a second shoulder portion arranged on the inside plate surface of the plate cover body which are integrally formed. The battery plate cover enables the conducting terminal and the plate cover body to be combined firmly and enlarges the contact area between the plate cover body and the insulation sleeve, and therefore good air-tight insulation effect at the penetrating position of the plate cover body and the conducting terminal is achieved.

Description

The battery disk cover

Technical field

The utility model is relevant for battery, espespecially a kind of battery disk cover.

Background technology

Secondary cell is one of general common energy accumulating device in the middle of the general daily life, demand increase along with electric tool and electric motor car, more raise the growth in secondary cell market, the apparent size of general secondary cell is decided according to the size of product mostly, and the plate designs of inside battery, except active material is selected, the size of dispensing area, the design of more important is exactly electric installation is linked to the structural design of the conducting terminal of battery container with it.

For example, if airborne moisture and medium are invaded battery container inside via the electric installation joint of disk cover, be very easy to cause the battery core abnormal failure of battery container inside; As shown in Figure 1, the battery core 11 of general secondary cell is coated in the thimble 121 of a battery container 12, and a disk cover 122 is respectively sealed up at thimble 121 two ends, and each disk cover 122 center has a perforation 123, links battery core 11 so as to pass perforation 123 for a conducting terminal 13.

Moreover, if undermine battery core 11 for avoiding airborne moisture and medium to invade inside battery, on take off and commonly use secondary cell in when assembling, how can respectively add in the medial and lateral of perforation 123 Airtight gasket 14,15 that an insulation material is made, and get a part 16 that compresses that is consisted of by nut and screw in conducting terminal 13 by disk cover 122 outsides, the strength of utilizing thread to lock forces and compresses part 16, Airtight gasket 14,15, disk cover 122 sealed penetration 123, reaches conducting terminal 13 is finished inside and outside airtight isolated purpose with disk cover 122 places of wearing.

On take off the air tight construction of commonly using the battery disk cover, main mode with man-made assembly, with be located at perforation 123 places of disk cover 122 conducting terminal 13, be located at the Airtight gasket 14,15 in the disk cover 122 interior outsides, and a part 16 that compresses that is made of nut is assembled and forms; When practical application, can be because perforation 123, Airtight gasket 14,15 even the mismachining tolerance of conducting terminal 13, or artificial assembling disappearance and make whole air tight construction can't reach due effect.

The utility model content

Main purpose of the present utility model be to provide a kind of can be with conducting terminal and the firm combination of disk cover body, and obtain the battery disk cover of better airtight isolated effect.

Take off purpose on reaching, solution of the present utility model is:

A kind of battery disk cover includes:

One disk cover body, be provided with a perforation that supplies conducting terminal to place in its precalculated position, the peritreme place that its outer card is positioned at perforation is provided with an aperture greater than the first section of class of punch inside diameter, and the peritreme place that its interior card is positioned at perforation is provided with an aperture greater than the second section of class of punch inside diameter;

One conducting terminal, relatively be arranged in perforation place of disk cover body, and the position that it is corresponding with the first section of class and the second section of class, be respectively equipped with one first outward flange and one second outward flange, this first outward flange and this second outward flange keep preset space length with corresponding the first section of class and one second section of class respectively, and the external diameter of its first outward flange and the second outward flange centre portion and punch inside diameter keep preset space length;

One isolated body, mode with plastic ejection moulding, be made between disk cover body and the conducting terminal, and one-body molded have fill out the isolated section, that is overlying between perforation and the conducting terminal and fill out the first shoulder, in the middle of first section of class that is overlying on and fill out the second shoulder in the middle of second section of class that is overlying on.

Described conducting terminal is provided with in the punch process mode in the first outward flange, makes the first outward flange become section towards the punched of the first shoulder direction compressing of isolated body.

Described disk cover body is formed with an inward flange at the inner ring of its section of the second class, card and outer card are with respect to the zone of inward flange in the disk cover body, be respectively equipped with in the punch process mode, make the disk cover body become section towards the punched of the second shoulder direction compressing of isolated body.

Described conducting terminal is provided with in the punch process mode in the first outward flange, makes the first outward flange become section towards the punched of the first shoulder direction compressing of isolated body; And, this disk cover body is formed with an inward flange at the inner ring of its section of the second class, card and outer card are respectively equipped with in the punch process mode with respect to the zone of inward flange in the disk cover body, make the disk cover body become section towards the punched of the second shoulder direction compressing of isolated body.

Further be provided with at least one relief hole on the described disk cover body.

Described conducting terminal is provided with one for the through hole that places with battery core.

Described conducting terminal is provided with a thread section in the through hole.

Commonly use structure with tradition and compare, battery disk cover of the present utility model can produce following effect:

1, can really consist of conducting terminal and the firm combination of disk cover body.

2, can make disk cover body and the conducting terminal place of wearing obtain better airtight isolated effect.

3, can reduce the man-made assembly cost.

4, can reduce the man-made assembly disappearance.

5, can eliminate fully because of disk cover body or conducting terminal mismachining tolerance, and issuable leakage problems.

Description of drawings

Fig. 1 is the disk cover portion structure cutaway view of commonly using secondary cell;

Fig. 2 is that battery disk cover of the present utility model uses scheme of installation;

Fig. 3 is battery disk cover stereoscopic figure of the present utility model;

Fig. 4 is battery disk cover partial structurtes cutaway view of the present utility model;

Fig. 5 be isolated cover of the present utility model body formed before, the scheme of installation of disk cover body and conducting terminal;

Fig. 6 be isolated cover of the present utility model body formed before, the relative position schematic diagram of disk cover body and conducting terminal.

[primary clustering symbol description]

[prior art]

11 battery cores, 12 battery containers

121 thimbles, 122 disk covers

123 perforation, 13 conducting terminals

14 Airtight gaskets, 15 Airtight gaskets

16 compress part

[the utility model]

20 battery disk covers, 21 disk cover bodies

211 perforation, 212 first sections of class

213 second sections of class, 214 inward flanges

215 puncheds become section 216 relief holes

22 conducting terminals, 221 through holes

222 first outward flanges, 223 second outward flanges

224 puncheds become section 225 thread sections

23 isolated body 231 isolated sections

232 first shoulders, 233 second shoulders.

Embodiment

In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.

Use shown in the scheme of installation such as Fig. 2 battery disk cover of the present utility model, battery disk cover of the present utility model 20 main battery container 12 two ends in order to predetermined dimension to be installed, the associated components of battery container 12 inside is sealed up for safekeeping, make to consist of a complete secondary battery construction, and as the battery core 11 of battery container 12 inside and the medium of external device electrical connection.Cooperate simultaneously with reference to Fig. 3 and shown in Figure 4, battery disk cover 20 of the present utility model has consisted essentially of: a disk cover body 21, a conducting terminal 22, and an isolated body 23;

This disk cover body 21 is in its precalculated position, be provided with a perforation 211 that supplies conducting terminal 22 to place, the peritreme place that its outer card is positioned at perforation 211 is provided with an aperture greater than the first section of class 212 of perforation 211 internal diameters, and the peritreme place that its interior card is positioned at perforation 211 is provided with an aperture greater than the second section of class 213 of perforation 211 internal diameters.

This conducting terminal 22 is arranged in perforation 211 places of disk cover body 21 relatively, it is preset with a through hole 221 that supplies battery core 11 to place, and the position that it is corresponding with the first section of class 212 and the second section of class 213, be respectively equipped with one first outward flange 222 and one second outward flange 223, this first outward flange 222 and this second outward flange 223 keep preset space length with corresponding the first section of class 212 and one second section of class 213 respectively, and the external diameter of the first outward flange 222 and the second outward flange 223 centre portions also keeps preset space length with perforation 211 internal diameters.

As for, should completely cut off body 23 in the mode of plastic ejection moulding, be made between disk cover body 21 and the conducting terminal 22, and one-body molded have to fill out be overlying on perforation 211 and the isolated section 231, between the conducting terminal 22 and fill out the first shoulders 232, in the middle of first section of class 212 that is overlying on and fill out and be overlying on the second central shoulder 233 of the second section of class 213; When implementing, first as shown in Figure 5 mode is placed through conducting terminal 22 in the perforation 211 of disk cover body 21 (as shown in Figure 6) in advance, the disk cover body that will place again conducting terminal is positioned over ejection shaping die to the location, make when the plastics injection ejection shaping die of ejection formation facility with melting, can be under the pressure of ejection formation facility be done, allow plastics insert first, the second outward flange 222,223 and first, the second section of class 212, in 213 the spacing, and communicate with it first, the second outward flange 222, in the spacing of the section in the middle of 223 and perforation 211.

After the plastic cool typing of inserting between disk cover body 21 and the conducting terminal 22, can form in the position that this is inserted an isolated body 23 (as shown in Figure 4), and really consist of conducting terminal 22 and the 21 firm combinations of disk cover body by the isolated body 23 behind the cooling and shaping, and under the effect of the first outward flange 222 and the second outward flange 223, effectively limit conducting terminal 22 axial displacements.

In principle, utilize the said structure feature, can be by isolated body 23 formed isolated section 231 behind ejection formation, and lay respectively in the disk cover body 21, under the second shoulder 233 of outer card and the effect of the first shoulder 232, significantly increase the contact area of disk cover body 21 and isolated body 23, make disk cover body 21 and conducting terminal 22 places of wearing obtain better airtight isolated effect, invade battery container inside if prevent airborne moisture and medium via disk cover body 21 and the joint of conducting terminal 22, with relative more positive means, avoid battery core or other member abnormal failure of battery container inside.

Moreover, for increasing the sealing property between isolated body 23, conducting terminal 22 and the disk cover body 21, battery disk cover 20 of the present utility model can be after isolated body 23 moulding, further the first outward flange 222 in conducting terminal 22 is provided with in the punch process mode, makes the first outward flange 222 become section 224 towards the punched of the first shoulder 232 directions compressing of isolated body 23.Even, can be further be formed with an inward flange 214 in the inner ring of the second section of class 213 of disk cover body 21, in disk cover body 21 interior cards and the outer card zone with respect to inward flange 214, be respectively equipped with in the punch process mode, make disk cover body 21 become section 215 towards the punched of the second shoulder 233 directions compressing of isolated body 23.

Can become under section 224,215 the effect at above-mentioned punched, strengthen urgent, sealing property between isolated body 23, conducting terminal 22 and the disk cover body 21.Certainly, battery disk cover 20 of the present utility model is provided with in the punch process mode in the first outward flange 222 of conducting terminal 22 when implementation, makes the first outward flange 222 become section 224 towards the punched of the first shoulder 232 directions compressing of isolated body 23; And, inner ring in the second section of class 213 of disk cover body 21 is formed with an inward flange 214, and in disk cover body 21 interior cards and the outer card zone with respect to inward flange 214, be respectively equipped with in the punch process mode, make disk cover body 21 become section 215 into good towards the punched of the second shoulder 233 directions compressing of isolated body 23.

Subsidiary one what carry is that because general high secondary battery is when using, its battery container internal pressure is relatively large, when battery container internal pressure serious offense certain limit value, might cause the battery disk cover to fly off from battery container because of compression shock; So battery disk cover 20 of the present utility model can further be provided with at least one relief hole 216 in disk cover body 21 as shown in Figures 2 and 3, this relief hole 216 can cooperate under the effect of relevant pressure relief mechanism avoids the event of battery explosion to occur.

Moreover, conducting terminal 22 of the present utility model removes can be such as Fig. 2, shown in Figure 3, be provided with outside the through hole 221 that supplies to place with battery core, it more can further be provided with a thread section 225 in through hole 221 places, so that to utilize the locking effect of thread section 225, strengthen the effect that engages of conducting terminal 22 and battery core 11, make applied secondary cell be obtained better performance and show.

Particularly, battery disk cover of the present utility model is to produce following effect:

3, can reduce the man-made assembly cost.

4, can reduce the man-made assembly disappearance.

Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.

Claims

1. a battery disk cover is characterized in that, includes:

2. battery disk cover as claimed in claim 1, it is characterized in that: this conducting terminal is provided with in the punch process mode in the first outward flange, makes the first outward flange become section towards the punched of the first shoulder direction compressing of isolated body.

3. such as claim 1 a described battery disk cover, it is characterized in that: this disk cover body is formed with an inward flange at the inner ring of its section of the second class, card and outer card are with respect to the zone of inward flange in the disk cover body, be respectively equipped with in the punch process mode, make the disk cover body become section towards the punched of the second shoulder direction compressing of isolated body.

4. such as claim 1 a described battery disk cover, it is characterized in that: this conducting terminal is provided with in the punch process mode in the first outward flange, makes the first outward flange become section towards the punched of the first shoulder direction compressing of isolated body; And, this disk cover body is formed with an inward flange at the inner ring of its section of the second class, card and outer card are respectively equipped with in the punch process mode with respect to the zone of inward flange in the disk cover body, make the disk cover body become section towards the punched of the second shoulder direction compressing of isolated body.

5. such as each described battery disk cover of claim 1 to 4, it is characterized in that: further be provided with at least one relief hole on this disk cover body.

6. such as each described battery disk cover of claim 1 to 4, it is characterized in that: conducting terminal is provided with one for the through hole that places with battery core.

7. battery disk cover as claimed in claim 6, it is characterized in that: this conducting terminal is provided with a thread section in the through hole.