CN104112587A - Explosion-proof capacitor - Google Patents
Explosion-proof capacitor Download PDFInfo
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- CN104112587A CN104112587A CN201310244900.6A CN201310244900A CN104112587A CN 104112587 A CN104112587 A CN 104112587A CN 201310244900 A CN201310244900 A CN 201310244900A CN 104112587 A CN104112587 A CN 104112587A
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- copper sheet
- capacitor
- explosion
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- sheet body
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Abstract
Provided is an explosion-proof capacitor. The explosion-proof device comprises insulating supporting plates which are connected on two opposite internal side surfaces of the box body of the explosion-proof capacitor, and two fuse copper sheets which are connected in series on a capacitor circuit. Each fuse copper sheet comprises an elongated copper sheet body, a rising part, and a pin part which is connected at the lower edge of the elongated copper sheet body, and the elongated copper sheet body, the rising part and the pin part are integrated. The rising part is connected with one end of the copper sheet body and upwardly inclines and extends so that an inclined angle is formed between the rising part and the upper edge of the elongated copper sheet body. The inclined angle is greater than 90 degrees. The two fuse copper sheets stand in opposite directions. The rising parts of the two fuse copper sheets are connected in a laminating and clinging way. An inverted "V"-shaped notch is formed by the lower edges of the two rising parts. The pin parts of the fuse copper sheets are matched with fixing holes arranged on the insulating supporting plates so that the fuse copper sheets are fixedly connected on the insulating supporting plates. With design of the fuse copper sheets, the fuse copper sheets can utilize thick copper sheets so that minimum through-flow resistance is reduced, through-flow area of an opening is increased and heating is reduced.
Description
Technical field
The present invention relates to the capacitor using in a kind of electric power system, relate in particular to a kind of pressure type noinductive capacitor of crossing.
Background technology
Existing noinductive capacitor is varied especially extensive to cross pressure type noinductive capacitor, its principle is: when capacitor core punctures, form short circuit, can produce a large amount of gas, the housing parts the most easily deforming in whole capacitor deforms, fuse or insurance copper sheet are pulled off, and cut off the electricity supply, and make the capacitor of working in off state.The key influence factor of its blast resistance construction is diameter or thickness, fuse or the insurance copper sheet welding quality of fuse or insurance copper sheet.Explosion-proof connection copper sheet in general explosion-protection equipment adopts the thin lateral opening copper sheet of 0.2-0.4mm, minimum galvanization resistance reaches 0.24 Ω m, opening part flow area is little, heating is large, and because its opening direction is Side face, explosion-proof to break stroke distances long, and scale copper easily stretches, the inconsistent 16-24KG that is generally of opening pulling force.It is all to adopt manual welding tin welding that while copper sheet two ends and explosion-protection equipment are fixed on housing. be easy to rosin joint sealing-off, and cost is high, welding procedure complexity, consistency hand-manipulated and poor reliability.
Summary of the invention
The object of the invention is to for prior art exist defect, a kind of noinductive capacitor is provided, its explosion-proof highly sensitive, insurance copper sheet heating low, opening part circulation area is large, and the consistency of its pulling force and reliability high.
For achieving the above object, the present invention adopts following technical proposals: a kind of noinductive capacitor, comprise the casing with cavity, be arranged at the capacitance group in cavity, in described cavity, the top of capacitance group is provided with explosion-protection equipment, described explosion-protection equipment comprises the insulation support plate on the relative medial surface of casing two that is connected in noinductive capacitor, be series at two insurance copper sheets on capacitor circuit, described insurance copper sheet comprises integrated strip copper sheet body, new line portion, be connected to the foot of strip copper sheet body lower limb, new line portion is connected to copper sheet body one end and the extension that is inclined upwardly, and between the top edge of strip copper sheet body, shape has angle, described angle is greater than 90 °, thirty years of age of two described insurance copper sheet relative direction, the new line portion part of two insurance copper sheets is stacked by connecting, the lower limb of two new line portions forms " V " v notch v, the foot of described insurance copper sheet coordinates with the fixing hole of opening on insulation support plate, making to insure copper sheet is fixed on insulation support plate.
Improve as one: the new line portion part of described two insurance copper sheets is stacked to be leaned on, and connects in being stacked by place's butt-joint.
Improve as one: described explosion-protection equipment is set up in capacitance group top by two fixed mounts, described fixed mount is provided with " ┕ " shape or " ┙ " shape grab, it is erect hook face and is provided with a lock dog, the upper end of described lock dog is fixed on the hook face of grab setting, lock dog is down with respect to erectting hook towards outer perk, on the side of the insulation support plate of explosion-protection equipment with draw-in groove, being clasped between described grab and draw-in groove is fixed in insulation support plate on two relative medial surfaces of capacitor casing, and act on insulation support plate restriction insulation support plate by the lower end of the outside perk of grab upper locking piece and upspring.
Improve as one: perforate on the bottom of described fixed mount, two relative medial surface correspondence positions of capacitor casing are provided with by casing punching press projection outside to inside, and fixed mount is riveted on the punching press projection of capacitor casing by the perforate of bottom.
Beneficial effect of the present invention, in technique scheme, due to the design of insurance copper sheet, makes to insure copper sheet and can adopt thick copper sheet, reduces minimum galvanization resistance, increases opening part flow area, reduces heating.Two insurance copper sheet new line portion parts are stacked by connecting, and for face contact engages, with respect to the juncture of existing line contact or some contact, have reduced the requirement to welding technique.Moreover two insurance copper sheet new line portion part be stacked by connection, the lower limb of two new line portions forms the structural design of " V " v notch v, when housing distortion, two insure copper sheet and not only have the pulling force of direction in opposite directions, at the folded torsion also having by junction on insurance copper sheet thickness direction, impel two insurance copper sheets more easily to break in indentation, there, improved the explosion-proof sensitivity of capacitor.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of noinductive capacitor of the present invention.
Fig. 2 is A place partial enlarged drawing in Fig. 1.
Fig. 3 is the structural representation of fixed mount in Fig. 1.
Embodiment
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of embodiment of noinductive capacitor of the present invention, comprise the casing 1 with cavity, be arranged at the capacitance group 4 in cavity, in described cavity, the top of capacitance group 4 is provided with explosion-protection equipment, described explosion-protection equipment comprises the insulation support plate 2 on the 1 liang of relative medial surface of casing that is vertically connected at noinductive capacitor, automatic butt-welding is connected in series in the thick electrolysis insurance copper sheet 3 of two 1.0-1.2mm on capacitor circuit, described insurance copper sheet 3 comprises integrated strip copper sheet body 3a, the 3b of new line portion, be connected to the 3c of foot of strip copper sheet body 3a lower limb, new line portion is connected to copper sheet body 3a one end and the extension that is inclined upwardly, and between the top edge of copper sheet body 3a, shape has angle, described angle is greater than 90 °, thirty years of age of two described insurance copper sheet 3 relative direction, the 2b of the new line portion part of two insurance copper sheets 3 is stacked to be leaned on, connect in being stacked by place's automatic butt-welding.The lower limb of two 3b of new line portion forms " V " v notch v, and producing air pressure distortion with casing 1 is same direction.The electrolysis insurance copper sheet 3 that 1.0-1.2mm is thick is not variable, and breach pulling force is unanimously 16-18KG, has dwindled insurance copper sheet and has broken stroke, while making capacitor breakdown, explosion-proof rate reaches 100%, and minimum galvanization resistance reaches 0.18 Ω m, and indentation, there flow area is large, the advantage such as generate heat little.The 3c of foot of described insurance copper sheet 3 stretches into after the fixing hole of opening on insulation support plate, and the bending 3c of foot end is fixed, and makes to insure copper sheet 3 and is fixed on insulation support plate 2.The break traditions connected mode of manual welding of the present embodiment, adopt automatic butt-welding connected mode, can effectively avoid manual welding tin welding to be easy to rosin joint sealing-off, the drawback of consistency and poor reliability, and the technique that automatic butt-welding connects is simple, cost is low, can improve consistency and reliability that capacitor connects.
In order to simplify technique, be convenient to assembling, described explosion-protection equipment is set up in capacitance group top by two fixed mounts 5, described fixed mount 5 is provided with " ┕ " shape or " ┙ " shape grab 5a, it is erect hook face and is provided with a lock dog 5c, the upper end of described lock dog 5c is fixed on the hook face of grab 5a setting, lock dog 5c is down with respect to erectting hook towards outer perk, on the side of the insulation support plate 2 of explosion-protection equipment with draw-in groove 2a, being clasped between described grab 5a and draw-in groove 2a is fixed in insulation support plate 2 on two relative medial surfaces of capacitor casing 1, and act on insulation support plate 2 by the lower end of the outside perk of grab 5a upper locking piece 5c and limit insulation support plate 2 and upspring.
Perforate 5b on the bottom of all fixed mounts 5, two relative medial surface correspondence positions of capacitor casing 1 are provided with by casing 1 punching press projection 1a outside to inside, and fixed mount 5 is riveted on the punching press projection 1a of capacitor casing 1 by the perforate 5b of bottom.Between the present embodiment fixed mount 5 and capacitor casing 1, adopt Wuxiization riveted joint to be fixedly connected with, both reduced cost, improved again assembling and production effect.
Above-described embodiment is described in detail the present invention, is not obviously limitation of the present invention, and the present invention can also have many variations, and therefore protection of the present invention orientation should be determined by claim.
Claims (4)
1. a noinductive capacitor, comprise the casing (1) with cavity, be arranged at the capacitance group (4) in cavity, it is characterized in that: in described cavity, the top of capacitance group (4) is provided with explosion-protection equipment, described explosion-protection equipment comprises the insulation support plate (2) on the relative medial surface of casing (1) two that is connected in noinductive capacitor, be series at the two insurance copper sheets (3) on capacitor circuit, described insurance copper sheet (3) comprises integrated strip copper sheet body (3a), new line portion (3b), be connected to the foot (3c) of copper sheet body (3a) lower limb, new line portion (3b) is connected to copper sheet body (3a) one end the extension that is inclined upwardly, and between the top edge of copper sheet body (3a), shape has angle, described angle is greater than 90 °, thirty years of age of two described insurance copper sheet (3) relative direction, new line portion (3b) part of two insurance copper sheets (3) is stacked by connecting, the lower limb of two new line portions (3b) forms " V " v notch v, the foot (3c) of described insurance copper sheet (3) coordinates with the fixing hole of opening on insulation support plate, making to insure copper sheet (3) is fixed on insulation support plate (2).
2. noinductive capacitor according to claim 1, is characterized in that: new line portion (2b) part of described two insurance copper sheets (3) is stacked to be leaned on, and connects in being stacked by place's butt-joint.
3. noinductive capacitor according to claim 1, it is characterized in that: described explosion-protection equipment is set up in capacitance group top by two fixed mounts (5), described fixed mount (5) is provided with " ┕ " shape or " ┙ " shape grab (5a), it is erect hook face and is provided with a lock dog (5c), the upper end of described lock dog (5c) is fixed on the hook face of grab (5a) setting, lock dog (5c) is down with respect to erectting hook towards outer perk, on the side of the insulation support plate (2) of explosion-protection equipment with draw-in groove (2a), being clasped between described grab (5a) and draw-in groove (2a) is fixed in insulation support plate (2) on two relative medial surfaces of capacitor casing (1), and outwards act on insulation support plate (2) restriction insulation support plate (2) and upspring in the lower end of perk by grab (5a) upper locking piece (5c).
4. noinductive capacitor according to claim 3, it is characterized in that: perforate (5b) on the bottom of described fixed mount (5), two relative medial surface correspondence positions of capacitor casing (1) are provided with by casing (1) punching press projection (1a) outside to inside, and fixed mount (5) is riveted on the punching press projection (1a) of capacitor casing (1) by the perforate (5b) of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310244900.6A CN104112587B (en) | 2013-06-20 | 2013-06-20 | Explosion-proof capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310244900.6A CN104112587B (en) | 2013-06-20 | 2013-06-20 | Explosion-proof capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104112587A true CN104112587A (en) | 2014-10-22 |
| CN104112587B CN104112587B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310244900.6A Active CN104112587B (en) | 2013-06-20 | 2013-06-20 | Explosion-proof capacitor |
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| Country | Link |
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| CN (1) | CN104112587B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978450A (en) * | 2017-12-21 | 2018-05-01 | 温州威斯康工业有限公司 | A kind of explosion-proof block of capacitor |
| CN109300688A (en) * | 2018-09-30 | 2019-02-01 | 德力西电气有限公司 | A kind of capacitor from explosion structure and capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842217A (en) * | 1981-10-08 | 1983-03-11 | 株式会社指月電機製作所 | Shielding conductor piece for condenser security device |
| EP0634760A1 (en) * | 1993-07-16 | 1995-01-18 | SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG | Electrical capacitor with overpressure protection |
| CN1200199A (en) * | 1995-10-31 | 1998-11-25 | 松下电器产业株式会社 | Explosion-proof seal plate for enclosed type cell and production method thereof |
| CN1205797A (en) * | 1995-10-30 | 1999-01-20 | 松下电器产业株式会社 | Electrolytic capacitor with open circuit mode mechanism |
| CN203300446U (en) * | 2013-06-20 | 2013-11-20 | 温州威斯康工业有限公司 | Explosion-proof capacitor |
-
2013
- 2013-06-20 CN CN201310244900.6A patent/CN104112587B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842217A (en) * | 1981-10-08 | 1983-03-11 | 株式会社指月電機製作所 | Shielding conductor piece for condenser security device |
| EP0634760A1 (en) * | 1993-07-16 | 1995-01-18 | SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG | Electrical capacitor with overpressure protection |
| CN1205797A (en) * | 1995-10-30 | 1999-01-20 | 松下电器产业株式会社 | Electrolytic capacitor with open circuit mode mechanism |
| CN1200199A (en) * | 1995-10-31 | 1998-11-25 | 松下电器产业株式会社 | Explosion-proof seal plate for enclosed type cell and production method thereof |
| CN203300446U (en) * | 2013-06-20 | 2013-11-20 | 温州威斯康工业有限公司 | Explosion-proof capacitor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978450A (en) * | 2017-12-21 | 2018-05-01 | 温州威斯康工业有限公司 | A kind of explosion-proof block of capacitor |
| CN107978450B (en) * | 2017-12-21 | 2024-04-19 | 温州威斯康工业有限公司 | Explosion-proof block of capacitor |
| CN109300688A (en) * | 2018-09-30 | 2019-02-01 | 德力西电气有限公司 | A kind of capacitor from explosion structure and capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104112587B (en) | 2017-02-08 |
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