CN204130356U

CN204130356U - Ultracapacitor sealing device

Info

Publication number: CN204130356U
Application number: CN201420503947.XU
Authority: CN
Inventors: 陈乐茵; 陈宇澄
Original assignee: Forward Electronics Co Ltd
Current assignee: Forward Electronics Co Ltd
Priority date: 2014-09-02
Filing date: 2014-09-02
Publication date: 2015-01-28
Anticipated expiration: 2024-09-02

Abstract

The utility model provides a kind of ultracapacitor sealing device, it comprises end cap and sealing ring, described end cap comprises round base and round boss, described sealing ring comprises annular body, the first round insulation limit and the second round insulation limit, described sealing ring is sheathed on described end cap and the side of the described first coated described round boss in round insulation limit, and annular ring body is near the end face of described round base and the side of the described second coated described round base in round insulation limit; The utility model can effectively prevent ultracapacitor leakage, and then ultracapacitor quality is got a promotion.

Description

Ultracapacitor sealing device

Technical field

The utility model relates to a kind of ultracapacitor parts, especially a kind of ultracapacitor sealing device.

Background technology

Ultracapacitor is a kind of novel energy-storing device between traditional capacitance and rechargeable battery, owing to having, power is high for it, charge-discharge velocity is fast, have extended cycle life and the multiple advantage such as environmental protection, obtains applying more and more widely in recent years in fields such as industrial electronic, communications and transportation, the renewable energy resources as power power-supply or accumulation power supply.

Conventional Large Copacity ultracapacitor, the ultracapacitor of such as 3000F, because its capacity is large, and high current charge-discharge speed is fast, as improper in its structural design, and capacitor is easy to generation leakage or anode and cathode terminals is burnt; In order to avoid anode and cathode terminals is burnt when high current charge-discharge, jumbo ultracapacitor usually can strengthen the diameter of anode and cathode terminals and form the mode of metal pole, to improve the ability of the overcurrent of ultracapacitor.Therefore, common jumbo ultracapacitor generally include one end open and the other end close metal shell, described metal shell blind end center arranges a metal pole and as an electrode of ultracapacitor, and the openend of metal shell is sealed the metal shell being equiped with fuse by metal cover board usually, and metal pole is set in the center, outer face of metal cover board and as another electrode of ultracapacitor.When although the supercapacitor structures of this class formation solves ultracapacitor high current charge-discharge, positive and negative problem of very easily burning; But because the general volume of Large Copacity ultracapacitor is comparatively large, as bad in sealed, be easy to produce leakage; And metal cover board lacks elasticity, therefore, as adopted metal cover board to seal ultracapacitor housing, operate careless slightly, ultracapacitor in aperture position leakage, and then will affect properties of product.

For solving the technological deficiency existing for above-mentioned ultracapacitor, be disclose a kind of cover plate structure for super capacitor in the patent documentation of ZL201210053176.4 in China Patent No., this cover plate is provided with annular projection, to in ultracapacitor seal process, make sealing ring reach better sealing effectiveness by annular projection to the squeezing action of sealing ring, and then prevent ultracapacitor leakage; But in use find, although the cover plate of this kind of structure is to a certain extent to preventing ultracapacitor from the dead of night playing certain effect, but because ultracapacitor leakage is flowed out from cover plate side and ultracapacitor shell inner surface junction, and the annular projection in this patent is arranged on cover plate upper surface, therefore, to preventing, ultracapacitor leakage role is limited, therefore, for this defect, be necessary to improve the ultracapacitor sealing device of this class formation further.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of ultracapacitor sealing device, and this ultracapacitor sealing device can effectively prevent ultracapacitor leakage, and then ultracapacitor quality is got a promotion.

In order to solve the problems of the technologies described above, the utility model provides a kind of ultracapacitor sealing device, it comprises the end cap be made up of metal material and is set in the sealing ring made on described end cap and by insulating material, described end cap comprises round base and diameter is less than described round base and protrudes the round boss being arranged at the external side end face of described circular slab, described sealing ring comprises the annular body of central aperture, and the diameter of the internal diameter of annular ring body and the round boss of described end cap is suitable, along annular ring body inside edge and to annular body outer face protrude be formed with the first round insulation limit, and along annular ring body outer ledge and to annular body inner face direction protrude be formed with the second round insulation limit, described first round insulation limit height is greater than described second round insulation limit height, and the height of the round boss of the first insulation limit height and described end cap is suitable, the thickness of the round base of described second round insulation limit height and described end cap is suitable, described sealing ring is sheathed on described end cap and the side of the described first coated described round boss in round insulation limit, annular ring body is near the end face of described round base and the side of the described second coated described round base in round insulation limit.

In one embodiment, cave in gradually along the outer ledge of described round base end face to round base and round boss junction and form edge protuberance and inner side locates the shoulder that caves in gradually bottom round boss at the end face of round base, the junction on annular ring body and the second round insulation limit leans at this shoulder place.

In one embodiment, described shoulder and horizontal plane are formed with angle α, and described angle α is the acute angle being more than or equal to 15 ° and being less than or equal to 30 °.

In one embodiment, described end cap is provided with the containing cavity of inner side end opening, and the chamber wall of described containing cavity opening part is arranged near the edge of round base, and diameter is less than the diameter of round base.

In one embodiment, outwardlyly in the center of described round boss metal pole is formed.

Compared with prior art, the utility model has following beneficial effect: (1) comprises the annular body of central aperture due to sealing ring of the present utility model, first round insulation limit and the second round insulation limit, and the first round insulation limit makes the round boss of described end cap and the shell body phase insulation of ultracapacitor, second round insulation limit makes the shell body phase insulation of the round base of described end cap and ultracapacitor and sealing function is built in opposite end simultaneously, because the first round insulation limit height is greater than the height on the second round insulation limit, when under external force ultracapacitor housing being sealed, second round insulation limit can not produce fold, and then improve the sealing property of ultracapacitor, avoid ultracapacitor causes leakage phenomenon because of poorly sealed, (2) due to the end face of the utility model round base is formed with edge protuberance and inner side gradually to the shoulder of round boss bottom notch, annular ring body leans at this shoulder place, to in ultracapacitor housing seal process, the junction on described shoulder extruding annular ring body and the second round insulation limit under external force, the junction on annular ring body and the second round insulation limit closely leans the inner surface place at ultracapacitor housing under the pressure effect of shoulder, thus effectively prevent electrolyte from having cover plate junction to spill from ultracapacitor housing, and then reach excellent sealing effect.

Accompanying drawing explanation

Fig. 1 is the stereo decomposing structural representation of the utility model ultracapacitor sealing device, there is shown the end cap of ultracapacitor sealing device and the stereochemical structure of sealing ring;

Fig. 2 is the sectional structure schematic diagram of the utility model ultracapacitor sealing device, there is shown end cap and the sealing ring annexation of the utility model ultracapacitor sealing device.

Fig. 3 a is the perspective view at a visual angle of the end cap of the utility model ultracapacitor sealing device;

Fig. 3 b is the perspective view at another visual angle of end cap of the utility model ultracapacitor sealing device;

Fig. 4 a is the main TV structure schematic diagram of the end cap of the utility model ultracapacitor sealing device;

Fig. 4 b is the plan structure schematic diagram of the end cap of the utility model ultracapacitor sealing device;

Fig. 4 c is that the A-A of the utility model ultracapacitor sealing device Fig. 4 b is to sectional structure schematic diagram;

Fig. 5 a is the perspective view at a visual angle of the sealing ring of the utility model ultracapacitor sealing device;

Fig. 5 b is the perspective view at another visual angle of the sealing ring of the utility model ultracapacitor sealing device;

Fig. 6 a is the plan structure schematic diagram of the sealing ring of the utility model ultracapacitor sealing device;

Fig. 6 b is that the B-B of the utility model ultracapacitor sealing device Fig. 6 a is to sectional structure schematic diagram.

Embodiment

Ultracapacitor sealing device of the present utility model is mainly used in sealing the openend of ultracapacitor housing, although the end cap of ultracapacitor sealing device of the present utility model is in order to an electrode as ultracapacitor, but the utility model is mainly better around what how to make ultracapacitor shell nozzle end seal, the angle preventing ultracapacitor electrolyte inside from spilling is set out, and sets forth correlation technique content of the present utility model.

See Fig. 1 and Fig. 2, ultracapacitor sealing device of the present utility model comprises end cap 1 and sealing ring 2; Wherein, outer end cap 1 adopts metal material to make, and sealing ring 2 adopts insulating material to make, and is set in described end cap 1 matches with end cap 1 and seals the openend of ultracapacitor housing.

See Fig. 3 a and Fig. 3 b, end cap 1 of the present utility model comprises round base 11 and round boss 12, and wherein, described round boss 12 protrudes the end face outside being arranged on this round base 11, and the diameter of round boss 12 is less than the diameter of described round base 11; Center along described round boss 12 is outwardly is formed with metal pole 121, and this metal pole 121 is as an electrode of ultracapacitor.

See Fig. 4 a, Fig. 4 b and Fig. 4 c, end cap 1 inner side end of the present utility model is provided with containing cavity 13, and the inner side end of described containing cavity 13 opens wide.Containing cavity 13 opening part chamber wall 131 is arranged near round base 11 edge, and diameter is less than the diameter of round base 11.

As a preferred version of the present utility model, the edge of the round base 11 of end cap of the present utility model is provided with shoulder 111, this shoulder 111 is positioned at the edge outside the end face of this round base 11, and its end face outer ledge place at round base 11 is protruding and depression is located gradually in inner side bottom round boss 12; Namely this shoulder 111 caves in gradually with round boss 12 junction along the outer ledge of described round base 11 end face to round base 11 and formed.The shoulder 111 and the horizontal plane that formed are formed with angle α, and this angle α is preferably greater than and equals 15 ° and the acute angle being less than or equal to 30 °.

See Fig. 5 a and Fig. 5 b, sealing ring 2 of the present utility model is made up of insulating material, and it comprises annular body 21, first round insulation limit 22 and the second round insulation limit 23; Wherein, annular ring body 21 central aperture, the diameter that the bore dia of this annular body 21 is the internal diameter of this annular body 21 and the round boss 12 of end cap of the present utility model 1 is suitable, and the diameter of the external diameter of annular ring body 21 and the round base 11 of described end cap is suitable; Described first round insulation limit 22 vertically connects the inside edge being positioned at annular body 21, and described second round insulation limit 23 vertically connects the outer ledge being positioned at annular body 21.

See Fig. 6 a and Fig. 6 b the first round insulation limit 22 of the present utility model be annular ring body 21 outer face from inside edge to annular body 21 and protrude formation; And the second round insulation limit 23 is the outer ledge of annular ring body 21 and protrudes to annular body 21 inner face direction and formed.And described first round insulation limit 22 is highly greater than described second round insulation limit 23 height, and the height of the height on the first round insulation limit 22 and the round boss 12 of described end cap is suitable, 11 thickness of the described height on the second round insulation limit 23 and the round base of described end cap 1 are suitable.

Refer again to Fig. 2, when sealing ring 2 of the present utility model is sheathed on outer end cap 1, the side of the described first coated described round boss 12 in round insulation limit 22, annular ring body 21 is near the end face of described round base 11 and the side of the described second coated described round base 11 in round insulation limit 23.And the junction on annular ring body 21 and the second round insulation limit 23 leans shoulder 111 place at round base 11.

End face due to the utility model round base 11 is formed with the shoulder 111 of edge protuberance, the annular body 21 of sealing ring 2 and the junction on the second round insulation limit 23 lean at this shoulder 111 place, to in ultracapacitor housing seal process, under external force, described shoulder 111 extrudes the junction on annular ring body 21 and the second round insulation limit 23, it is made closely to lean inner surface place at ultracapacitor housing, thus effectively prevent electrolyte from having cover plate junction to spill from ultracapacitor housing, and then reach excellent sealing effect.In addition, because the height on the second round insulation limit 23 is less, when sealing ultracapacitor, the second round insulation limit 23 can not produce fold under external force squeezing action, and then avoids ultracapacitor and cause the phenomenon of leakage because sealing ring 2 produces fold.

Claims

1. a ultracapacitor sealing device, comprise the end cap be made up of metal material and be set in the sealing ring made on described end cap and by insulating material, described end cap comprises round base and diameter is less than described round base and protrudes the round boss being arranged at the external side end face of described circular slab, it is characterized in that, described sealing ring comprises the annular body of central aperture, and the diameter of the internal diameter of annular ring body and the round boss of described end cap is suitable, along annular ring body inside edge and to annular body outer face protrude be formed with the first round insulation limit, and along annular ring body outer ledge and to annular body inner face direction protrude be formed with the second round insulation limit, described first round insulation limit height is greater than described second round insulation limit height, and the height of the round boss of the first insulation limit height and described end cap is suitable, the thickness of the round base of described second round insulation limit height and described end cap is suitable, described sealing ring is sheathed on described end cap and the side of the described first coated described round boss in round insulation limit, annular ring body is near the end face of described round base and the side of the described second coated described round base in round insulation limit.

2. ultracapacitor sealing device as claimed in claim 1, it is characterized in that, cave in gradually along the outer ledge of described round base end face to round base and round boss junction and the end face of round base form edge protuberance and inner side gradually to the shoulder of round boss bottom notch, the junction on annular ring body and the second round insulation limit leans at this shoulder place.

3. ultracapacitor sealing device as claimed in claim 2, it is characterized in that, described shoulder and horizontal plane are formed with angle α, and described angle α is the acute angle being more than or equal to 15 ° and being less than or equal to 30 °.

4. ultracapacitor sealing device as claimed any one in claims 1 to 3, it is characterized in that, described end cap is provided with the containing cavity of inner side end opening, and the chamber wall of described containing cavity opening part is arranged near the edge of round base, and diameter is less than the diameter of round base.

5. ultracapacitor sealing device as claimed in claim 4, is characterized in that, outwardlyly in the center of described round boss is formed with metal pole.