CN202905473U - Connection structure for leading-out terminals of super-capacitor - Google Patents

Connection structure for leading-out terminals of super-capacitor Download PDF

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Publication number
CN202905473U
CN202905473U CN 201220474820 CN201220474820U CN202905473U CN 202905473 U CN202905473 U CN 202905473U CN 201220474820 CN201220474820 CN 201220474820 CN 201220474820 U CN201220474820 U CN 201220474820U CN 202905473 U CN202905473 U CN 202905473U
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China
Prior art keywords
leading
out terminal
rivet
cover plate
blind hole
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CN 201220474820
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Chinese (zh)
Inventor
阮殿波
潘国林
张洪权
傅冠生
陈照平
于智强
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Ningbo CRRC New Energy Technology Co.,Ltd.
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NINGBO NANCHE NEW ENERGY TECHNOLOGY Co Ltd
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Priority to CN 201220474820 priority Critical patent/CN202905473U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13Energy storage using capacitors

Abstract

The utility model discloses a connection structure for leading-out terminals of a super-capacitor, which relates to the field of super-capacitor component. The utility model aims to provide the connection structure for the leading-out terminals of the super-capacitor, which has the following advantages: tight and reliable connection, low connection resistance and high current carrying capacity. The connection structure for the leading-out terminals of the super-capacitor comprises the following components: a leading-out terminal, an aluminum foil electrode, a cover plate and a rivet. The leading-out terminal is axially provided with a blind hole at the connection part between the leading-out terminal and the aluminum foil electrode. The bottom of the blind hole is provided with a cone top which projects outwards. The leading-out terminal at the opening of the blind hole is provided with a plurality of grooves. The cover plate surface where the cover plate contacts with the aluminum foil electrode is provided with a flange which is matched with the groove. The rivet shank bottom of the rivet shank is provided with a concave rivet expansion tank which is matched with the cone top. The aluminum foil electrode is provided with an aluminum foil electrode hole which corresponds with the blind hole. The cover plate is provided with a cover plate hole which corresponds with the blind hole. The rivet shank of the rivet successively passes through the cover plate hole of the cover plate and the aluminum foil electrode hole of the aluminum foil electrode, and then is snapped in and fixedly connected with the blind hole of the leading-out terminal.

Description

A kind of syndeton of ultracapacitor leading-out terminal
Technical field
The utility model relates to the ultracapacitor field of components, relates in particular to a kind of syndeton of ultracapacitor leading-out terminal.
Background technology
At present, make the large-scale ultracapacitor that conduction is drawn with the laminated aluminium foil electrode, generally adopt the mode of ultrasonic bonding to allow foil electrode be connected with leading-out terminal.And the metal ultrasonic welding machine is expensive, and welding quality is unstable, and it is disconnected weldering often to occur, the phenomenons such as sealing-off, and the foil electrode that surpasses certain number of plies is difficult to welding.People the internal resistance of ultracapacitor, charging and discharging capabilities are required more and more higher today, only have the current capacity that strengthens foil electrode, just can make large-scale ultracapacitor in large electric current (moment 6000A) charge and discharge process, be unlikely to excess Temperature.The general method that increases current capacity is exactly width and the number of plies that increases foil electrode, how foil electrode and leading-out terminal is connected to become the focal issue that industry solves reliably, effectively, closely.
China Patent Publication No. CN2909483, open day is on June 6th, 2007, name is called the syndeton that discloses a kind of leading-out terminal of power capacitor in the scheme of " syndeton of leading-out terminal of power capacitor ", comprise outer lead end, inner lead end, outer lead end is electrically connected with inner lead end, be provided with the connector of drawing that comprises the first terminals and the second terminals, corresponding the first terminals and the second terminals with drawing connector of outer lead end and inner lead end are electrically connected.Weak point is, the foil electrode of the syndeton of this leading-out terminal of power capacitor and the leading-out terminal connection reliability is poor, current capacity is low.
The utility model content
The utility model is for the foil electrode that overcomes existing large-scale ultracapacitor and this deficiency that the leading-out terminal connection reliability is poor, current capacity is low, provide a kind of simple in structure, be easy to connect, with low cost, connect closely reliably, the syndeton of contact resistance is low, current capacity is high a kind of ultracapacitor leading-out terminal.
To achieve these goals, the utility model is by the following technical solutions:
A kind of syndeton of ultracapacitor leading-out terminal, comprise: leading-out terminal, foil electrode, cover plate, rivet, leading-out terminal in leading-out terminal and foil electrode connection is axially arranged with blind hole, be provided with cambered outwards cone point in the blind hole bottom, leading-out terminal at the blind hole opening part is provided with some grooves, be provided with the convex edge that is complementary with groove at cover plate and the contacted cover plate face of foil electrode, be provided with in the rivet bar of rivet bottom and the concavity rivet expansion draw-in groove of boring point and being complementary, be provided with the foil electrode hole corresponding with blind hole at foil electrode, on the cover board be provided with the cover board hole corresponding with blind hole, the rivet bar of described rivet passes the cover board hole of cover plate successively and the foil electrode hole of foil electrode snaps in the blind hole that is fixedly connected on leading-out terminal.
This programme axially bores several blind holes on the leading-out terminal of the end that leading-out terminal is connected with foil electrode, and the bottom of blind hole is provided with the cone point, successively cover plate, foil electrode are put on rivet, after putting into the blind hole of leading-out terminal, carry out riveting, just can be good at a foil electrode and leading-out terminal and link together.At leading-out terminal groove is set, be provided with the convex edge that is complementary with groove at cover plate and the contacted cover plate face of foil electrode, its objective is so that when carrying out being connected of foil electrode and leading-out terminal, make the pressure that produces between cover plate and the leading-out terminal larger, thereby destroy the oxide layer on foil electrode surface, so that foil electrode is low with resistance after leading-out terminal is connected, current capacity is high.And connect closely reliable, simple in structure, be easy to connect, with low cost.
As preferably, described blind hole is provided with two, and these two blind holes are arranged symmetrically in the both sides, axis of leading-out terminal.Two blind holes all are laid in the both sides, axis of leading-out terminal, are symmetrically distributed so that rivet with can not rotate after leading-out terminal is connected, and so that connect more closely reliably, fail safe is higher.
As preferably, be laid with five grooves that are parallel to each other at the leading-out terminal of described blind hole opening part.Parallel groove is convenient to the orderly bending of foil electrode, can not cause foil electrode to be damaged because of the extruding of leading-out terminal and cover plate.
As preferably, the cone that described cone point is the normal cone shape is sharp.The cone of normal cone shape point so that the cone point when being subject to the blind hole extruding, uniformly to around component, thereby so that rivet with more reliably tight after leading-out terminal is connected, fail safe is higher.
As preferably, described rivet expansion draw-in groove inner chamber is surrounded by axial four uniform rivet expansion bars, and the terminal inboard of every rivet expansion bar curves inwardly slightly.Allow the terminal inboard of every rivet expansion bar slightly curve inwardly, when extruding leading-out terminal and rivet, the rivet expansion bar of interior bending is terminal can be because of crimp, rivet expansion bar can closely be clamped between cone point and the blind hole inwall after the distortion, and so that rivet expansion bar is better with the sharp interlock degree of cone, thereby so that rivet and leading-out terminal are connected after compressing is more reliable and more stable, should not come off.
As preferably, described cover plate is the rectangle cover plate, and the rectangle cover plate equates with the width of foil electrode, is provided with bevel edge in the edge of rectangle cover plate.Bevel edge can not make foil electrode be damaged.
As preferably, the rivet bar outer surface of described rivet is positive eight prisms, is provided with the blind hole madial wall that positive eight prisms with the rivet bar outer surface are complementary in the blind hole of described leading-out terminal.Eight prisms are not so that rivet can rotate after installing and damage foil electrode, and simultaneously, eight prisms are so that when cone point extruding blind hole, it is more good that rivet expansion bar contact with the blind hole inwall, connects more reliably tight.
The utility model can reach following effect:
This programme has realized that large-scale electrode of super capacitor can bear larger charging and discharging currents (moment 6000A), improved the performance index of large-scale ultracapacitor, and simple in structure, make simple, be easy to connect, with low cost, connect closely reliable, contact resistance is low, current capacity is high.
Description of drawings
Fig. 1 is the cross-sectional view after a kind of assembling of the present utility model.
Fig. 2 is the cross-sectional view of a kind of leading-out terminal of the present utility model.
Fig. 3 is the plan structure schematic diagram of a kind of leading-out terminal of the present utility model.
Fig. 4 is the plan structure schematic diagram of a kind of cover plate of the present utility model.
Fig. 5 is the cross-sectional view of a kind of cover plate of the present utility model.
Fig. 6 is that a kind of rivet of the present utility model is faced structural representation.
Fig. 7 is a kind of rivet plan structure schematic diagram of the present utility model.
Among the figure: 1, leading-out terminal; 11, cone point; 12, blind hole; 13, groove; 2, foil electrode; 3, cover plate; 31, convex edge; 32, bevel edge; 33, cover board hole; 4, rivet; 41, rivet expansion bar side seam; 42, rivet expansion bar; 43, rivet bar; 44, rivet expansion draw-in groove.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the syndeton of a kind of ultracapacitor leading-out terminal of present embodiment as shown in Figure 1, comprising: leading-out terminal 1, foil electrode 2, cover plate 3, rivet 4.
Such as Fig. 2, shown in Figure 3, leading-out terminal in leading-out terminal and foil electrode connection is axially arranged with two blind holes 12, and these two blind holes are arranged symmetrically in the both sides, axis of leading-out terminal, in the blind hole of leading-out terminal, be provided with the blind hole madial wall that positive eight prisms with the rivet bar outer surface are complementary, be provided with cambered outwards cone point 11 in the blind hole bottom, and should the cone point be the cone point of normal cone shape, uniform five grooves 13 that are parallel to each other that mill out on the leading-out terminal of blind hole opening part.
Such as Fig. 4, shown in Figure 5, cover plate is the rectangle cover plate, and the rectangle cover plate equates with the width of foil electrode, be provided with bevel edge 32 in the edge of rectangle cover plate, mill out the convex edge 31 that is complementary with groove at cover plate and the contacted cover plate face of foil electrode, on the cover board be provided with the cover board hole corresponding with blind hole 33.
Such as Fig. 6, shown in Figure 7, the rivet bar outer surface of rivet is positive eight prisms, be provided with in rivet bar 43 bottoms of rivet and the concavity rivet expansion draw-in groove 44 of boring point and being complementary, and rivet expansion draw-in groove inner chamber is surrounded by axial four uniform rivet expansion bars 42, and the terminal inboard of every rivet expansion bar curves inwardly slightly.
Be provided with the foil electrode hole corresponding with blind hole at foil electrode.
As shown in Figure 1, when use installing, pass successively the cover board hole of cover plate 3 and the foil electrode hole of foil electrode 2 snaps in the blind hole that is fixedly connected on leading-out terminal 1 with the rivet bar of two rivets 4.In blind hole bottom after the sharp purpose of cone is set is to allow rivet be pressed into, the cone point of blind hole bottom will thrust in the rivet expansion draw-in groove of rivet, make the rivet expansion bar of rivet end to expanding all around, rivet expansion bar side seam 41 will be magnified as shown in Figure 7, thereby rivet and blind hole inwall are filled closely, prevent that rivet from coming off out.
Present embodiment makes foil electrode and leading-out terminal more reliably, effectively, couple together closely, realized that large-scale electrode of super capacitor can bear larger charging and discharging currents, improved the performance index of large-scale ultracapacitor, and simple in structure, make simple, be easy to connect, with low cost, connect closely reliable, contact resistance is low, current capacity is high.
The above has described execution mode of the present utility model by reference to the accompanying drawings, but not limited by above-described embodiment when realizing, those of ordinary skills can make a variety of changes or revise within the scope of the appended claims.

Claims (7)

1. the syndeton of a ultracapacitor leading-out terminal, comprise: leading-out terminal (1), foil electrode (2), it is characterized in that, also comprise: cover plate (3), rivet (4), leading-out terminal in leading-out terminal and foil electrode connection is axially arranged with blind hole (12), be provided with cambered outwards cone point (11) in the blind hole bottom, leading-out terminal at the blind hole opening part is provided with some grooves (13), be provided with the convex edge (31) that is complementary with groove at cover plate and the contacted cover plate face of foil electrode, be provided with in the rivet bar (43) of rivet bottom and the concavity rivet expansion draw-in groove (44) of boring point and being complementary, be provided with the foil electrode hole corresponding with blind hole at foil electrode, on the cover board be provided with the cover board hole corresponding with blind hole (33), the rivet bar of described rivet passes the cover board hole of cover plate successively and the foil electrode hole of foil electrode snaps in the blind hole that is fixedly connected on leading-out terminal.
2. the syndeton of a kind of ultracapacitor leading-out terminal according to claim 1 is characterized in that, described blind hole is provided with two, and these two blind holes are arranged symmetrically in the both sides, axis of leading-out terminal.
3. the syndeton of a kind of ultracapacitor leading-out terminal according to claim 1 and 2 is characterized in that, is laid with five grooves that are parallel to each other at the leading-out terminal of described blind hole opening part.
4. the syndeton of a kind of ultracapacitor leading-out terminal according to claim 1 is characterized in that, the cone point that described cone point is the normal cone shape.
5. the syndeton of a kind of ultracapacitor leading-out terminal according to claim 1, it is characterized in that, described rivet expansion draw-in groove inner chamber is surrounded by axial uniform four rivet expansion bars (42), and the terminal inboard of every rivet expansion bar curves inwardly slightly.
6. the syndeton of a kind of ultracapacitor leading-out terminal according to claim 1, it is characterized in that, described cover plate is the rectangle cover plate, and the rectangle cover plate equates with the width of foil electrode, is provided with bevel edge (32) in the edge of rectangle cover plate.
7. the syndeton of a kind of ultracapacitor leading-out terminal according to claim 1, it is characterized in that, the rivet bar outer surface of described rivet is positive eight prisms, is provided with the blind hole madial wall that positive eight prisms with the rivet bar outer surface are complementary in the blind hole of described leading-out terminal.
CN 201220474820 2012-09-17 2012-09-17 Connection structure for leading-out terminals of super-capacitor Active CN202905473U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106128797A (en) * 2016-07-25 2016-11-16 宁波中车新能源科技有限公司 A kind of ultracapacitor draws lug
CN110197770A (en) * 2019-04-16 2019-09-03 南通江海储能技术有限公司 A kind of both ends pole type high-performance super capacitor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106128797A (en) * 2016-07-25 2016-11-16 宁波中车新能源科技有限公司 A kind of ultracapacitor draws lug
CN106128797B (en) * 2016-07-25 2019-04-26 宁波中车新能源科技有限公司 A kind of supercapacitor extraction tab
CN110197770A (en) * 2019-04-16 2019-09-03 南通江海储能技术有限公司 A kind of both ends pole type high-performance super capacitor

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CP03 Change of name, title or address
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Address after: 315111 199 Yinzhou District Road, five town, Yinzhou District, Ningbo, Zhejiang

Patentee after: Ningbo CRRC New Energy Technology Co.,Ltd.

Address before: 315112 578 Wuxiangxi Road, Five Townships, Yinzhou District, Ningbo City, Zhejiang Province

Patentee before: Ningbo Nanche New Energy Technology Co., Ltd.