CN102543488B - Capacitor sealing cover and capacitor - Google Patents
Capacitor sealing cover and capacitor Download PDFInfo
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- CN102543488B CN102543488B CN201210054065.5A CN201210054065A CN102543488B CN 102543488 B CN102543488 B CN 102543488B CN 201210054065 A CN201210054065 A CN 201210054065A CN 102543488 B CN102543488 B CN 102543488B
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Abstract
The invention provides a capacitor sealing cover and a capacitor. The capacitor comprises a housing consisting of an open end and a closed end, a core arranged in the housing from the open end of the housing, a sealing cover comprising a cover body and made of metal materials and serving as a lead wire terminal; the other lead wire terminal made of the metal materials and serving as the other lead-out pole, wherein the cover body is made of an insulating material and a connection hole is formed on the cover body; the lead wire terminal is embedded in the connection hole in a matched manner, and two ends of the lead wire terminal respectively extend out of two end parts of the cover body; one end of the lead wire terminal embedded in the connection hole is connected with the core of the housing; the other lead wire terminal is positioned on the outer side of the closed end of the housing and is integrally connected with the closed end of the housing; and one end of the other lead wire terminal is connected with the core in the housing. An annular projection extending along an edge direction of the cover body is projected at the edge near the cover body. A sealing ring covers and tightly presses the above of the annular projection. The diameter of the sealing ring is adaptive to that of the cover body. The sealing cover is used for the capacitor.
Description
Technical field
The present invention relates to capacitor devices, relate in particular to a kind of capacitor sealing cover and capacitor.
Background technology
Ultracapacitor (Electric double-layer capacitor) is the electrochemical energy storage element between traditional ordinary capacitor and battery that development in recent years is got up; Because it has advantages of that power density is high, service life cycle is long and charging rate is fast, at multiple fields such as mobile communication, solar power generation, wind power generation, information technology and electric automobiles, have broad application prospects.
Tradition ultracapacitor, generally include an end opening metal shell, be positioned at housing fuse and in order to the sealing plug of seal casinghousing openend.For ultracapacitor is electrically connected to outside, the both positive and negative polarity guide pin of ultracapacitor all passes from sealing conventionally beyond the Great Wall; Because adopting insulating material conventionally, makes by sealing plug, therefore sealing property is relatively better.But when ultracapacitor is carried out to high current charge-discharge, thereby because being all arranged in same sealing plug, both positive and negative polarity guide pin causes that the cross-sectional area of single electrode guide pin (anodal guide pin/negative electrode guide needle) is limited becomes less, both positive and negative polarity guide pin is easy to burn, and causes whole ultracapacitor to be scrapped.
In order to improve ultracapacitor large current density power, part ultracapacitor manufacturers design a kind of ultracapacitor, this ultracapacitor also comprises the metal shell of an end opening, the openend of this metal shell is sealed by metallic sealed cover, and metal shell insulate mutually with metallic sealed cover, make ultracapacitor anode and cathode terminals lay respectively at an end of housing and the outside of metallic sealed cover.In order to increase the overcurrent capability of this anode and cathode terminals, the cross-sectional area of this anode and cathode terminals is increased, although the ultracapacitor of this kind of structure has solved ultracapacitor to a certain extent when heavy-current discharge, the technical problem that both positive and negative polarity guide pin easily burns, but in seal process, if because of careless manipulation, cause metallic sealed cover and metal shell to be conducted, and then cause ultracapacitor short circuit.Separately, while sealing between metallic sealed cover and metal shell, if misoperation is easy to produce leakage, sealing effectiveness is poor.In addition, metallic sealed cover is owing to adopting metal material to make, therefore its manufacturing cost is high.Comprehensive above product technology shortcoming, is necessary the supercapacitor structures of this capacitor seal cover and application sealing lid to improve.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of capacitor sealing cover, this capacitor sealing cover low cost of manufacture, and good sealing effect and can effectively prevent ultracapacitor leakage.
Another technical problem that the present invention will solve is to provide a kind of capacitor, and this capacitor can be avoided because the leakage that seal cover is former thereby cause, short circuit, anode and cathode terminals are because of technological deficiencies such as high current charge-discharge burn.
In order to realize object of the present invention, in a first aspect of the present invention, the invention provides a kind of capacitor sealing cover, comprising: lid; Lead terminal, is made and as the extraction pole of capacitor by metal material.A connecting hole is made and offered on lid to lid by insulating material; Lead terminal has one, and lead terminal is embedded in connecting hole suitablely and stretch out from the both ends of lid respectively at the two ends of lead terminal; Wherein, in the edge near lid, protrude and be formed with the annular projection extending along the edge direction of lid.
In order to realize object of the present invention, in a second aspect of the present invention, the invention provides a kind of capacitor, comprising: housing, comprises openend and blind end; Fuse, is placed in housing from the openend of housing; Seal cover, seal cover comprises lid and a lead terminal being made and be used as an extraction pole of capacitor by metal material; And another lead terminal, by metal material, made and as another extraction pole of capacitor.Wherein, a connecting hole is made and offered on lid to lid by insulating material; A described lead terminal is embedded in connecting hole suitablely and stretch out from the both ends of lid respectively at the two ends of a described lead terminal, and the one end of wherein inlaying a described lead terminal that is positioned at connecting hole is connected with the fuse that is positioned at housing.Wherein, described another lead terminal be positioned at housing blind end outside, be connected as one with the blind end of housing and one end of described another lead terminal is connected with the fuse that is positioned at housing; Wherein, in the edge near lid, protrude and be formed with the annular projection extending along the edge direction of lid; Above annular projection, cover and closely pressed sealing ring, seal diameter and lid diameter are suitable.
Compared with prior art, the present invention has following beneficial effect:
(1) because adopting insulating material, makes capacitor seal cover of the present invention, therefore the seal cover that traditional metal materials is made relatively has low cost of manufacture, and because adopting insulating material, makes this capacitor seal cover, therefore the sealing of its relative prior art material this to have elasticity strong, the advantage of good sealing effect.
(2) because capacitor seal cover of the present invention is made by insulating material, in its connecting hole, be inlaid with lead terminal, and the lead terminal being embedded in this connecting hole has one, therefore, sealing lid has enough spaces and holds larger-diameter capacitor lead wire terminal, therefore, apply the seal cover of this capacitor, because its lead terminal diameter is larger, therefore application has the capacitor of sealing lid to carry out when high current charge-discharge, and can not burn, and then improved the useful life of capacitor.
(3) because the annular projection being formed with along the edge direction extension of described lid is protruded in the edge of seal cover of the present invention, therefore, when using sealing lid to seal the housing of capacitor, the dual sealing functions to the liquid in capacitor due to elastic sealing cover and annular projection, compare with traditional metal seal cover, it is better that the present invention has sealing effectiveness, and then can prevent because capacitor seal cap sealing is not tight, the technological deficiency that causes the electrolyte in capacitor to flow out.
(4) because adopting insulating material, makes seal cover of the present invention, thus can avoid, because adopting metallic sealed cover, when careless manipulation, causing metallic sealed cover and metal shell to be conducted, and then cause the phenomenon of ultracapacitor short circuit to occur.
Accompanying drawing explanation
Fig. 1 is the front upper top perspective view according to capacitor sealing cover of the present invention;
Fig. 2 is the front lower face upwarding stereogram according to capacitor sealing cover of the present invention;
Fig. 3 is according to the front view of capacitor sealing cover of the present invention;
Fig. 4 is according to the three-dimensional exploded view of capacitor of the present invention angle;
Fig. 5 is according to the three-dimensional exploded view of another angle of capacitor of the present invention;
Fig. 6 is the exploded view of facing according to capacitor of the present invention;
Fig. 7 is according to the stereogram of capacitor of the present invention angle;
Fig. 8 is according to the stereogram of another angle of capacitor of the present invention;
Fig. 9 is the front view according to capacitor of the present invention; And
Figure 10 is the vertical view according to capacitor of the present invention.
Wherein, description of reference numerals is as follows:
1 housing 2 fuse 3 seal covers
4A, 4B lead terminal 5 sealing ring 6 elastic conducting strips
7 pole plate 8 explosion-proof valve 11 openends
13 blind end 31 lid 311 connecting holes
313 315 annular projection 3151 edges, edges
317 middle part end faces
Embodiment
Below in conjunction with accompanying drawing, illustrate according to capacitor sealing cover of the present invention and capacitor.
First illustrate according to capacitor sealing cover of the present invention.
As shown in Figure 1 to Figure 3, according to capacitor sealing cover 3 of the present invention, comprising: lid 31; And lead terminal 4A, by metal material, made and as the extraction pole of capacitor.Wherein, a connecting hole 311 is made and offered on lid 31 to lid 31 by insulating material, and lead terminal 4A has one, and this lead terminal 4A is embedded in connecting hole 311 suitablely and stretch out from the both ends of lid 31 respectively at the two ends of lead terminal 4A.
In capacitor sealing cover 3 according to the present invention, the two ends that lead terminal 4A stretches out from the both ends of lid 31 respectively can have different cross-sectional areas, as shown in Figure 3.Certainly, the two ends that lead terminal 4A stretches out from the both ends of lid 31 respectively can have same cross-sectional area.
In capacitor sealing cover 3 according to the present invention, preferably, connecting hole 311 is positioned at the center of lid 31, as shown in Figure 1 to Figure 3.
In capacitor sealing cover 3 according to the present invention, preferably, at 313 places, edge near lid 31, protrude and be formed with the annular projection 315 extending along the edge direction of lid 31, as shown in Figure 1 to Figure 3.More preferably, an end face of lid 31 is that the high periphery in middle part is low and be step-like step end face, and annular projection 315 is positioned at the peripheral position of described step end face, at 313 places, edge near step-like step end face of being of lid 31, as shown in Figure 1 to Figure 3.
Next illustrates capacitor of the present invention.
As shown in Fig. 4 to Figure 10, capacitor according to the present invention comprises: housing 1, comprises openend 11 and blind end 13; Fuse 2, is placed in housing 1 from the openend 11 of housing 1; Seal cover 3, comprises lid 31 and a lead terminal 4A who is made and be used as an extraction pole of capacitor by metal material; Another lead terminal 4B, is made and as another extraction pole of capacitor by metal material; .Wherein: a connecting hole 311 is made and offered on lid 31 to lid 31 by insulating material; Lead terminal 4A is embedded in connecting hole 311 suitablely and stretch out from the both ends of lid 31 respectively at the two ends of lead terminal 4A, and the one end of wherein inlaying the lead terminal 4A that is positioned at connecting hole 311 is connected with the fuse 2 that is positioned at housing 1; Lead terminal 4B is positioned at blind end 13 outsides of housing 1, be connected as one with the blind end 13 of housing 1 and one end of lead terminal 4B is connected with the fuse 2 that is positioned at housing 1.
According in capacitor of the present invention, preferably, connecting hole 311 is positioned at the center of lid 31.
According in capacitor of the present invention, preferably, at 313 places, edge near lid 31, protrude and be formed with the annular projection 315 extending along the edge direction of lid 31.One end face of lid 31 is that the high periphery in middle part is low and be step-like step end face; Annular projection 315 is positioned at the peripheral position of described step end face, at 313 places, edge near step-like step end face of being of lid 31.Preferably, above annular projection 315, cover and closely pressed sealing ring 5.Sealing ring 5 is made by insulating material.Step end face place and bottom 53 that sealing ring 5 is positioned at lid 31 cover annular projection 315, and the top 51 of sealing ring 5 flushes with the end face of the middle part end face 317 of lid 31.
At this, it should be noted that according to the seal cover 3 of capacitor of the present invention identical with the structure of capacitor sealing cover 3 in Fig. 1 to Fig. 3.
According in capacitor of the present invention, sealing ring 5 diameters and lid 31 diameters are suitable.Preferably, the external diameter of sealing ring 5 is not less than the maximum outside diameter (being the external diameter at 313 places, edge) of lid 31.
According in capacitor of the present invention, as shown in Figure 5 and Figure 6, described capacitor also can comprise: elastic conducting strip 6, the one end of inlaying the lead terminal 4A that is positioned at connecting hole 311 is connected with the fuse 2 that is positioned at housing 1 via elastic conducting strip 6, elastic conducting strip 6 is chip rugosity, its super-high-current performance is strong, can effectively improve the ability that capacitor super-high-current charges and discharge.
According in capacitor of the present invention, as shown in Figures 4 to 6, described capacitor also can comprise: pole plate 7, and suitable with the internal diameter of housing 1, be placed in housing 1 and near blind end 13 bottoms of housing 1; Wherein, one end of lead terminal 4B is connected with the fuse 2 that is positioned at housing 1 via pole plate 7.
According in capacitor of the present invention, as shown in Fig. 4 to Figure 10, described capacitor also can comprise: explosion-proof valve 8, along the axis direction of housing 1 linearly shape be arranged at housing 1 lateral wall.Preferably, explosion-proof valve 8 for the axis direction along housing 1 linearly shape be arranged at the indenture on housing 1 lateral wall.
Finally, according to the embodiment with above-mentioned whole parts shown in Fig. 4 to Figure 10, come simple declaration once according to the seal process of capacitor of the present invention.First pole plate 7 is placed in to blind end 13 bottoms with the housing 1 of lead terminal 4B, then pack the fuse 2 that is connected with elastic conducting strip 6 into, to be step-like that be provided with annular projection 315 and pack housing 1 into the lid 31 of lead terminal 4A afterwards, afterwards sealing ring 5 is contained in again to the edge 3151 that lid 31 and sealing ring 5 cover annular projection 315, finally utilize channelling machine (not shown) to carry out slot rolling processing and housing 1 is carried out to crimping processing the position that is provided with sealing ring 5 of housing 1, thereby realize the sealing between housing 1, sealing ring 5 and lid 1; Because sealing ring 5 is when sealing, the top 51 of sealing ring 5 is subject to the pressure-acting after housing crimping, and the bottom 53 of sealing ring 5 is subject to annular projection 315 extruding and closely cooperates with annular projection 315, therefore its sealing property is fine.
Claims (8)
1. a capacitor sealing cover (3), comprising:
Lid (31);
Lead terminal (4A), is made and as the extraction pole of capacitor by metal material;
It is characterized in that,
A connecting hole (311) is made and offered on lid (31) to lid (31) by insulating material; And
Lead terminal (4A), has one, and it is embedded in connecting hole (311) suitablely and stretch out from the both ends of lid (31) respectively at the two ends of lead terminal (4A);
Wherein, near the edge (313) of lid (31), locating to protrude the annular projection (315) being formed with along the edge direction extension of lid (31).
2. capacitor sealing cover as claimed in claim 1 (3), is characterized in that, connecting hole (311) is positioned at the center of lid (31).
3. capacitor sealing cover as claimed in claim 1 (3), is characterized in that,
One end face of lid (31) is that the high periphery in middle part is low and be step-like step end face;
Annular projection (315) is positioned at the peripheral position of described step end face.
4. a capacitor, comprising:
Housing (1), comprises openend (11) and blind end (13);
Fuse (2), the openend (11) from housing (1) is placed in housing (1);
Seal cover (3), seal cover (3) comprises lid (31) and a lead terminal (4A) of being made and be used as an extraction pole of capacitor by metal material; And
Another lead terminal (4B), is made and as another extraction pole of capacitor by metal material; It is characterized in that,
A connecting hole (311) is made and offered on lid (31) to lid (31) by insulating material;
A described lead terminal (4A) is embedded in connecting hole (311) suitablely and stretch out from the both ends of lid (31) respectively at the two ends of a described lead terminal (4A), and the one end of wherein inlaying a described lead terminal (4A) that is positioned at connecting hole (311) is connected with the fuse (2) that is positioned at housing (1); And
Described another lead terminal (4B) be positioned at housing (1) blind end (13) outside, be connected as one with the blind end (13) of housing (1) and one end of described another lead terminal (4B) is connected with the fuse (2) that is positioned at housing (1);
Wherein, near the edge (313) of lid (31), locating to protrude the annular projection (315) being formed with along the edge direction extension of lid (31); In annular projection (315) top, cover and closely pressed sealing ring (5), sealing ring (5) diameter and lid (31) diameter are suitable.
5. capacitor as claimed in claim 4, is characterized in that,
One end face of lid (31) is that the high periphery in middle part is low and be step-like step end face;
Annular projection (315) is positioned at the peripheral position of described step end face and the top (51) of sealing ring (5) flushes with the end face of the middle part end face (317) of lid (31).
6. capacitor as claimed in claim 4, is characterized in that, described capacitor also comprises:
Elastic conducting strip (6), is chip rugosity, inlays one end of a described lead terminal (4A) that is positioned at connecting hole (311) and is connected with the fuse (2) that is positioned at housing (1) via elastic conducting strip (6).
7. capacitor as claimed in claim 4, is characterized in that, described capacitor also comprises:
Pole plate (7), suitable with the internal diameter of housing (1), be placed in housing (1) and the blind end (13) of close housing (1) bottom;
Wherein, one end of described another lead terminal (4B) is connected with the fuse (2) that is positioned at housing (1) via pole plate (7).
8. capacitor as claimed in claim 4, is characterized in that, described capacitor also comprises:
Explosion-proof valve (8), along the axis direction of housing (1) linearly shape be arranged at housing (1) lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210054065.5A CN102543488B (en) | 2012-03-02 | 2012-03-02 | Capacitor sealing cover and capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210054065.5A CN102543488B (en) | 2012-03-02 | 2012-03-02 | Capacitor sealing cover and capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102543488A CN102543488A (en) | 2012-07-04 |
| CN102543488B true CN102543488B (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210054065.5A Active CN102543488B (en) | 2012-03-02 | 2012-03-02 | Capacitor sealing cover and capacitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106548869B (en) * | 2016-09-30 | 2019-01-25 | 铜陵其利电子材料有限公司 | A kind of capacitor lead wire structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122572A (en) * | 2010-12-31 | 2011-07-13 | 无锡富洪科技有限公司 | Cover plate device for electric double-layer capacitor and electric double-layer capacitor |
| CN102290544A (en) * | 2011-07-22 | 2011-12-21 | 奇瑞汽车股份有限公司 | High-capacity lithium-ion power battery post sealing structure |
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2012
- 2012-03-02 CN CN201210054065.5A patent/CN102543488B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122572A (en) * | 2010-12-31 | 2011-07-13 | 无锡富洪科技有限公司 | Cover plate device for electric double-layer capacitor and electric double-layer capacitor |
| CN102290544A (en) * | 2011-07-22 | 2011-12-21 | 奇瑞汽车股份有限公司 | High-capacity lithium-ion power battery post sealing structure |
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| CN102543488A (en) | 2012-07-04 |
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