CN101567427B - Battery cathode sealing device - Google Patents
Battery cathode sealing device Download PDFInfo
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- CN101567427B CN101567427B CN2009103029710A CN200910302971A CN101567427B CN 101567427 B CN101567427 B CN 101567427B CN 2009103029710 A CN2009103029710 A CN 2009103029710A CN 200910302971 A CN200910302971 A CN 200910302971A CN 101567427 B CN101567427 B CN 101567427B
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- seal
- hole
- cover board
- battery
- seal cover
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
A battery cathode sealing device comprises a sealing cover board arranged at an open end of a battery metal shell; a cathode component arranged on the sealing cover board, extending upwards from the battery metal shell outward the cover board; a sealing piece between the cathode component and the sealing cover board to make the cathode component and the sealing cover board form a sealing connection The invention effectively solves the problem of battery cathode leakage. The leakage points of the battery are completely sealed by the multiple sealing structure so as to effectively prevent the battery cathode leakage and avoid the battery and device damage due to the leakage liquid.
Description
[technical field]
The present invention relates to enclosed cell, particularly relate to a kind of battery cathode sealing device.
[background technology]
In recent years, because electronic equipments such as mobile phone, notebook computer, digital camera develop to lighting, high power capacity direction, as the driving power of this class of electronic devices, what generally use is the various alkaline batteries of high power capacity and with the nonaqueous electrolytic solution secondary battery of lithium ion battery as representative.But because above-mentioned non-electrolyte secondary batteries has high-energy-density, characteristics such as part throttle characteristics excellence and strong sealing, make this type of battery because of the energy density height, internal pressure causes the negative pole seepage greatly and easily, the negative pole seepage is very harmful to battery and electronic equipment then, and can directly influence the useful life and the safety in utilization of electronic equipment.
[summary of the invention]
The present invention is intended to address the above problem, and a kind of battery cathode seepage that can effectively prevent is provided, avoiding causing battery and device damage because of leakage, and simple structure, the battery cathode sealing device that sealing property is good.
For achieving the above object, the invention provides a kind of battery cathode sealing device, this device comprises:
A seal cover board, it is located at the opening end of battery metal shell;
One negative pole assembly, it is located on the described seal cover board, and by upwards extending in the battery metal shell outside the described seal cover board;
One seal, it is located between described negative pole assembly and the seal cover board, makes negative pole assembly and seal cover board form and is tightly connected.
Seal cover board is provided with the through hole of up/down perforation, is provided with the location hole of seal location usefulness on seal cover board away from an end downside of through hole.
Through hole is made of hole under hole on rectangle or the oval-shaped scalariform and circle that is communicated with it or the ellipse, is provided with the fluid stopping ring of the base plane that protrudes from the hole at the last hole and the edge of joint portion, following hole.
The negative pole assembly comprises a longitudinal metal joint pin and a transverse metal brace, and metal connecting sheet is fixed in the bottom of metal joint pin.
Seal is the plastics sleeve shape body, and it comprises integrally formed vertical body, goes up seal disc and horizontal lower seal plate, and wherein, last seal disc is located at the outside, nearly upper end of body, and the lower seal plate is located at the bottom of body.
The inside and outside footpath of body is corresponding with the diameter in the following hole of the through hole of the external diameter of the metal joint pin of negative pole assembly and seal cover board respectively; The described seal disc of going up is located at the outside, the nearly upper end of body, its profile is corresponding with the last hole of the through hole of seal cover board, the joint portion of the outer surface of last seal disc bottom outer surface and body is provided with the fluid stopping ring corresponding groove with seal cover board, forms cannelure between the sidewall of last seal disc and the body; Described lower seal plate is extended to form laterally by the lower end of body.
The lower seal plate is rectangle or oval tabular body, be provided with two spaced first positioning convex of broad ways at one end downside, the other end of lower seal plate is provided with down protruding detent, is provided with second positioning convex corresponding with the location hole of seal cover board at the opposite side of the lower seal plate relative with described positioning convex.
The metal joint pin of negative pole assembly and the body of seal are the sealed type tight fit, the metal joint pin after being pressed into described body with the metal connecting sheet riveted and fixed, one end of metal connecting sheet is positioned between two positioning convex on the lower seal plate of seal, the other end of metal connecting sheet then inserts in the detent of lower seal plate, makes metal connecting sheet not move at its Width.
Contribution of the present invention is that it efficiently solves the leakage problems of battery cathode.Owing to be provided with multi-sealing structure, the sealing that each breakthrough of battery is improved, thereby can effectively prevent the battery cathode seepage, avoided causing battery and device damage because of leakage.The present invention has simple in structure, and is easy to implement, sealing property excellence, characteristics such as low cost of manufacture.
[description of drawings]
Fig. 1 is the lithium ion battery structure schematic perspective view that is provided with battery cathode sealing device of the present invention.
Fig. 2 is the structure cutaway view of battery cathode sealing device of the present invention.
Fig. 3 is a parts exploded perspective schematic diagram of the present invention.
[embodiment]
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
Present embodiment only is example with the lithium battery.Consult Fig. 1～Fig. 3, battery cathode sealing device of the present invention comprises seal cover board 10, battery metal shell 20, negative pole assembly 30 and seal 40.Wherein, as shown in Figure 1, battery metal shell 20 is cuboid aluminum metal housings of open top.
As Fig. 1, shown in Figure 3, opening end at battery metal shell 20 is connected with a seal cover board 10, the sealing cover plate is and the tabular body of the corresponding rectangle of battery metal hull shape shape, be provided with the through hole 11 of up/down perforation in seal cover board 10 and the corresponding position of negative pole, as Fig. 2, this through hole 11 is made of last hole 111 and following hole 112, wherein, last hole 111 is the oval-shaped scalariform holes that extended to form laterally by upper end, following hole, following hole 112 is the circular ports that are communicated with last hole, and it is the through hole of the up/down perforation of T shape that upper and lower hole forms the longitudinal cross-section.Be provided with the fluid stopping ring 113 of the base plane that protrudes from hole 111 at the last hole 111 and the edge of 112 joint portions, following hole.Among Fig. 2, on seal cover board, be provided with the location hole 12 of the swallow-tail form of a seal 40 location usefulness away from an end downside of through hole 11.
As shown in Figure 1, on described seal cover board 10, be provided with negative pole assembly 30, its structure such as Fig. 2, shown in Figure 3, this negative pole assembly 30 comprises a longitudinal metal joint pin 31 and a transverse metal brace 32, in this example, metal joint pin 31 be by with the corresponding plate body 311 of last hole 111 shapes of seal cover board and integrally formed with the corresponding column of following hole 112 shapes of seal cover board 312, its longitudinal cross-section is a T shape.In this example, metal joint pin 31 is made by stainless steel.The bar shaped plates that described brace 32 is made for metallic nickel, brace 32 are provided with the joint pin hole 321 that places joint pin 31 usefulness.The joint pin hole 321 of brace 32 is passed in the lower end of joint pin 31, and rivets mutually with brace 32.As shown in Figure 2, the brace 32 of negative pole assembly 30 places in the battery metal shell 20, and it is connected with the conducting terminal (not shown) of battery inner core.The joint pin 31 of negative pole assembly 30 extends upwardly to outside the described seal cover board 10, and it is connected with conducting terminal (not shown) on the seal cover board.
As Fig. 2, shown in Figure 3, between described negative pole assembly 30 and seal cover board 10, be provided with a seal 40, seal 40 is the sleeve shape body of plastic injection-moulded formation, it comprises by vertical body 41 of integrated through injection molding formation, goes up seal disc 42 and horizontal lower seal plate 43, wherein go up seal disc 42 and be located at the outside, nearly upper end of body 41, lower seal plate 43 is located at the bottom of body 41.More particularly, the inside and outside footpath of body 41 is corresponding with the diameter in the following hole 112 of the through hole 11 of the external diameter of the metal joint pin 31 of negative pole assembly and seal cover board respectively.The described seal disc 42 of going up is located at the outside, body 41 nearly upper end, and its profile is the last hole 111 corresponding ellipses with the through hole 11 of seal cover board.The joint portion of the outer surface of last seal disc bottom outer surface and body 41 is provided with groove 421, and this groove is used to embed the fluid stopping ring 113 of seal cover board.Form the cannelure 422 of sealing usefulness between the sidewall of last seal disc and the body 41, described lower seal plate 43 is extended laterally by the lower end of body 41, forms the tabular body of rectangle.It is corresponding with the width of the metal connecting sheet 32 of negative pole assembly to be provided with two distances between spaced first positioning convex of broad ways 431, two positioning convex at lower seal plate one end downside.The other end of lower seal plate 43 is provided with down protruding detent 432, is provided with second positioning convex 433 corresponding with the location hole 12 of seal cover board at the opposite side of the lower seal plate 43 relative with described positioning convex 431.As shown in Figure 2, described seal 40 usefulness injection molding machines are injected and molded in the through hole 11 of seal cover board 10, make the last seal disc 42 of seal be sealedly attached in the last hole 111 of seal cover board through hole 11, the body 41 of seal is tightly connected with the following hole 112 of seal cover board through hole 11, the lower seal plate 43 of seal is sealedly attached to the inboard of seal cover board 10, second positioning convex 433 on the lower seal plate 43 embeds in the location hole 12 of seal cover board downside, lower seal plate 43 is located mutually with seal cover board 10, simultaneously, the fluid stopping ring 113 of seal cover board is tightly connected with groove 421 formation of seal.
Consult Fig. 2, the metal joint pin 31 of negative pole assembly is passed through external force,, form the interference fit of sealing as the body 41 of forcing press indentation sealing spare, the plate body 311 of joint pin embeds in the last hole 111 of seal cover board the lower end of the column 312 of joint pin and metal connecting sheet 32 riveted and fixed.One end of metal connecting sheet 32 is positioned between two positioning convex 431 on the lower seal plate 43 of seal, the other end of metal connecting sheet then inserts in the detent 432 of lower seal plate 43, make metal connecting sheet 32 not move, to prevent and as short circuit between the anodal battery metal shell 20 at its Width.
By this, by being tightly connected of 30 of seal 40 and seal cover board 10 and negative pole assemblies, can effectively prevent the battery cathode seepage.
Although by above embodiment the present invention is disclosed, scope of the present invention is not limited thereto, do not departing under the condition of the present invention design, more than each member can replace with the similar or equivalent element that affiliated technical field personnel understand.
Claims (4)
1. a battery cathode sealing device is characterized in that, this device comprises:
A seal cover board (10), it is located at the opening end of battery metal shell (20), sealing cover plate (10) is provided with the through hole (11) of up/down perforation, on seal cover board, be provided with the location hole (12) of a seal (40) location usefulness away from an end downside of through hole (11), through hole (11) is provided with the fluid stopping ring (113) of the base plane that protrudes from hole (111) by hole (111) on rectangle or the oval-shaped scalariform and circle that is communicated with it or oval hole (112) down formation at last hole (111) and the edge of joint portion, following hole (112);
One negative pole assembly (30), it is located on the described seal cover board (10), and by upwards extending in the battery metal shell (20) outside the described seal cover board (10), this negative pole assembly (30) comprises a longitudinal metal joint pin (31) and a transverse metal brace (32), and metal connecting sheet (32) is fixed in the bottom of metal joint pin (31);
One seal (40), it is located between described negative pole assembly (30) and the seal cover board (10), making negative pole assembly (30) form with seal cover board (10) is tightly connected, sealing part (40) is the plastics sleeve shape body, it comprises integrally formed vertical body (41), goes up seal disc (42) and horizontal lower seal plate (43), wherein, last seal disc (42) is located at the outside, nearly upper end of body (41), and lower seal plate (43) is located at the bottom of body (41).
2. battery cathode sealing device as claimed in claim 1 is characterized in that, the inside and outside footpath of described body (41) is corresponding with the diameter in the following hole (112) of the through hole (11) of the external diameter of the metal joint pin (31) of negative pole assembly and seal cover board respectively; The described seal disc (42) of going up is located at the outside, the nearly upper end of body (41), its profile is corresponding with the last hole (111) of the through hole (11) of seal cover board, the joint portion of the outer surface of last seal disc bottom outer surface and body (41) is provided with fluid stopping ring (113) corresponding groove (421) with seal cover board, forms cannelure (422) between the sidewall of last seal disc and the body (41); Described lower seal plate (43) is extended to form laterally by the lower end of body (41).
3. battery cathode sealing device as claimed in claim 2, it is characterized in that, described lower seal plate (43) is rectangle or oval tabular body, be provided with two spaced first positioning convex of broad ways (431) at one end downside, the other end of lower seal plate (43) is provided with down protruding detent (432), is provided with second positioning convex (433) corresponding with the location hole (12) of seal cover board at the opposite side of the lower seal plate (43) relative with described positioning convex (431).
4. battery cathode sealing device as claimed in claim 2, it is characterized in that, the metal joint pin (31) of described negative pole assembly is the sealed type tight fit with the body (41) of seal, metal joint pin (31) is being pressed into described body (41) back and metal connecting sheet (32) riveted and fixed, one end of metal connecting sheet (32) is positioned between two positioning convex (431) on the lower seal plate (43) of seal, the other end of metal connecting sheet then inserts in the detent (432) of lower seal plate (43), makes metal connecting sheet (32) not move at its Width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103029710A CN101567427B (en) | 2009-06-05 | 2009-06-05 | Battery cathode sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103029710A CN101567427B (en) | 2009-06-05 | 2009-06-05 | Battery cathode sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101567427A CN101567427A (en) | 2009-10-28 |
| CN101567427B true CN101567427B (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103029710A Active CN101567427B (en) | 2009-06-05 | 2009-06-05 | Battery cathode sealing device |
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| CN (1) | CN101567427B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420295A (en) * | 2011-12-02 | 2012-04-18 | 苏州冠硕新能源有限公司 | Battery core cover, battery core cover component and manufacturing method thereof |
| KR102017232B1 (en) * | 2016-02-05 | 2019-09-02 | 주식회사 엘지화학 | Battery module and battery pack having the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753239A (en) * | 2004-09-22 | 2006-03-29 | 三星Sdi株式会社 | Lithium ion secondary battery and cap assembly therefor |
-
2009
- 2009-06-05 CN CN2009103029710A patent/CN101567427B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753239A (en) * | 2004-09-22 | 2006-03-29 | 三星Sdi株式会社 | Lithium ion secondary battery and cap assembly therefor |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2002-367577A 2002.12.20 |
| JP特开2003-45407A 2003.02.14 |
| JP特开2009-76394A 2009.04.09 |
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| Publication number | Publication date |
|---|---|
| CN101567427A (en) | 2009-10-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI KDL HARDWARE + PLASTIC CO., LTD. Free format text: FORMER OWNER: SHENZHEN KEDALI INDUSTRIAL CO., LTD. Effective date: 20120312 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 518109 SHENZHEN, GUANGDONG PROVINCE TO: 201615 SONGJIANG, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120312 Address after: Songjiang District Jiuting Zhen Yin Qing Road 201615 Shanghai City No. 829 Patentee after: Shanghai Kedali Hardware Plastic Co., Ltd. Address before: 518109, Baoan District, Shenzhen province Guangdong large wave street, won the same village, Huaxing Road, built in industrial zone Patentee before: Shenzhen Kedali Industrial Co., Ltd. |