CN101937805B - Upper contact base of drop-out fuse - Google Patents
Upper contact base of drop-out fuse Download PDFInfo
- Publication number
- CN101937805B CN101937805B CN 200910054120 CN200910054120A CN101937805B CN 101937805 B CN101937805 B CN 101937805B CN 200910054120 CN200910054120 CN 200910054120 CN 200910054120 A CN200910054120 A CN 200910054120A CN 101937805 B CN101937805 B CN 101937805B
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- guide rod
- touch base
- base body
- contact base
- base
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Abstract
The invention discloses an upper contact base of a drop-out fuse. The drop-out fuse comprises a fuse carrier, a lever mechanism, the upper contact base, a lower contact base, a tripping/switching-in mechanism, an insulating piece, an upper terminal block, a lower terminal block, an upper insert and lower insert, wherein the upper contact base comprises an upper support, a spring base, a guide rod, the upper contact base and a pressure spring; the guide rod is sequentially inserted into a guide hole of the upper support and a guide rod jack of the spring base and is connected with the upper contact base through rivets; and the pressure spring is arranged on the guide rod and is sleeved outside a circular table of the upper contact base and is positioned between the lower end face of the spring base and the upper end face of the upper contact base, so that an included angle alpha is formed between an axis of the guide rod and an axis of the guide hold of the upper support. The upper contact base of the drop-out fuse can realize the reliable action of switching-in and tripping of the fuse carrier, and can perform switching-in/tripping operation only through small operating force while ensuring that the large contact pressure exists.
Description
Technical field
The present invention relates to a kind of upper touch base for fuse switch.
Background technology
Fuse switch is the most frequently used a kind of protective switch of the short circuit of 10kV distribution line branch line and distribution transformer; it have economy, easy to operate, adapt to the characteristics such as outdoor environment is strong, be widely used in 10kV distribution line and distribution transformer primary side as protection and carry out the usefulness that equipment is thrown, cut operation.Its operation principle is: fuse is penetrated in the fusion tube, tighten at two ends, and make fuse be positioned at fusion tube upper middle side, upper moving contact is upturned perpendicular to cartridge fuse owing to the tension force of fuse tension, with insulated tension pole upper moving contact is pushed in the upper static contact, become closure state ("on" position) and keep this state.When protected circuit breaks down, when fault current makes fuse failure, form electric arc; expulsion tube decomposites a large amount of gases under the high arc temperature effect, overpressure is sharply increased, and gas is at a high speed ejection outwards; electric arc is formed strong vertical arc blow-out, electric arc is elongated rapidly and extinguish.Meanwhile, because fuse failure, the pulling force of fuse disappears, and retaining mechanism is discharged, and cartridge fuse falls around the lower shaft upset under the effect of the elastic force of upper static contact and deadweight thereof, forms obvious break distance.Circuit is disconnected, excision faulty section circuit or faulty equipment.
The upper touch base of the fuse switch of prior art generally can only carry out up and down, when the fusing carrier on/off switch larger operating physical force need to be arranged.Along with fuse cut-offs constantly increasing of capacity, requiring has more contact between contact, when this certainly will cause divide-shut brake larger operating physical force will be arranged, and therefore demands urgently improving.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, a kind of upper touch base for fuse switch is provided, it redesigns in order to reach labour-saving purpose change motion mode and to adapt to the close/open machine that increases newly.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of upper touch base for fuse switch, described fuse switch comprises fusing carrier, leverage, on, lower touch base, close/open machine, insulating part, on, on lower connecting terminal reaches, lower inserts, described upper touch base comprises upper bracket, spring base, guide rod, upper touch base body and stage clip, wherein, described upper bracket comprises plane on one and is vertically connected on the lower cover of rear and front end, plane, its cross section is doorframe shape, on its upper plane from left to right coaxially the interval offer dual-purpose connecting hole and a waist type pilot hole in connecting upper connecting terminal; Described spring base is a rectangular slab, and two connecting holes are offered on the left side of its upper surface, and offers on the right a guide rod jack and form an angle as the inclined-plane of α as the boundary to the bending one downwards of its right-hand member direction with upper surface take the center line of this guide rod jack; The bar section of described guide rod and the guide rod jack of spring base mate and can swing in the pilot hole of upper bracket, and the upper end of bar section is provided with a limited cap, and the bottom surface of bar section is provided with a rivet blind hole; The left side of described upper touch base body is a thin flat plate, and the left side upper surface of this thin flat plate is offered two connecting holes, and the rear and front end of this thin flat plate bends downwards respectively and offers an interlock pin-and-hole on a linkage board and this linkage board; The right that should upper touch base body also forms a circular platform type draw-in groove for thin flat plate and at medium position by the punching press that makes progress of its lower surface, offers a rivet at the end face of this draw-in groove; The rear and front end of touch base body and the intersection that is positioned at its left side and the right are respectively equipped with a lock buckling groove on described; Described guide rod is plugged on successively in the guide rod jack of pilot hole, spring base of upper bracket and by rivet and is connected with upper touch base, described stage clip be installed on the guide rod and the end face of the outer draw-in groove that is enclosed within the touch base body outer and between the upper surface of the lower surface of spring base and upper touch base body;
Described upper bracket is fixed on the upper connecting terminal, and when carrying out closing operation after described upper touch base body and the interlock of described close/open machine, described spring base is done swinging take angle as α, and described upper touch base body moves up and down and the compound motion that swings.
The above-mentioned upper touch base that is used for fuse switch, wherein, described α is 20 °～30 °.
The above-mentioned upper touch base that is used for fuse switch, wherein, the upper plane of described upper bracket is along its length direction punching press one trapezoidal groove.
The above-mentioned upper touch base that is used for fuse switch, wherein, the lower surface of described spring base is provided with the cylindrical boss that be used for stage clip location coaxial with described guide rod jack, and described stage clip is enclosed within outward outside this boss.
The technical scheme of the upper touch base for fuse switch of the present invention has changed the motion mode of original upper touch base, namely changed into by single moving up and down and move up and down and the pattern that swings and combine, it is comprised of upper touch base, upper bracket, spring work, guide rod, stage clip, after linking with the close/open machine that increases newly, just can realize the action message of fusing carrier on/off switch, and when ensuring larger contact, as long as there is less operating physical force just can carry out the on/off switch operation.
Description of drawings
Fig. 1 is the structural representation of fuse switch;
Fig. 2 is the schematic diagram of the upper touch base for fuse switch of the present invention;
Fig. 3 is the structural representation of the upper bracket of the upper touch base for fuse switch of the present invention;
Fig. 4 is the structural representation of the spring base of the upper touch base for fuse switch of the present invention.
Fig. 5 is the structural representation of the upper touch base body of the upper touch base for fuse switch of the present invention.
Embodiment
Below by embodiment particularly and by reference to the accompanying drawings technical scheme of the present invention is described:
See also Fig. 1, fuse switch comprises fusing carrier 1, leverage 2, upper and lower touch base 3,4, close/open machine 5, insulating part 6, upper and lower binding post 7,8 and upper and lower inserts 9,10.
See also Fig. 2 to Fig. 5, the upper touch base for fuse switch of the present invention comprises upper bracket 51, spring base 52, guide rod 53, upper touch base body 54 and stage clip 55 again, wherein,
Upper bracket 51 comprises plane 511 on one and is vertically connected on the lower cover 512 of 511 rear and front ends, plane, its cross section is doorframe shape, on its upper plane 511 from left to right coaxially the interval offer dual-purpose connecting hole 513,514 and one waist type pilot hole 515 in connecting upper connecting terminal; Along its length direction punching press one trapezoidal groove 516, the groove ancient piece of jade, round, flat and with a hole in its centre of this groove 516 forms reinforcement on the upper surface on upper plane 511, with the intensity that increases upper bracket 51 and reduce upper bracket 511 use the material amount;
The bar section 531 of guide rod 53 mates with the guide rod jack of spring base 52 523 and can swing in the pilot hole 515 of upper bracket 51, and the upper end of bar section 531 is provided with a limited cap 532, and the bottom surface of bar section is provided with a rivet blind hole;
The left side of upper touch base body 54 is a thin flat plate, the left side upper surface of this thin flat plate is offered two connecting holes 541, two, front and back of this thin flat plate be bent to form downwards a pair of linkage board 542 and this to offer respectively on the linkage board 542 one with the interlock pin-and-hole 543 of close/open machine interlock; The right that should upper touch base body 54 also forms a circular platform type draw-in groove 545 for thin flat plate and at medium position by the punching press that makes progress of its lower surface, offers a rivet 546 at the end face of this draw-in groove 546; In the rear and front end of upper touch base body 54 and the intersection that is positioned at its left side and the right be respectively equipped with a lock buckling groove 544;
The bar section 531 of guide rod 53 is plugged on successively in the guide rod jack 523 of pilot hole 514, spring base 52 of upper bracket 51 and by rivet 56 and is connected with upper touch base body 54, stage clip 55 be installed in the bar section 531 of guide rod 53 and the end face of the outer draw-in groove 546 that is enclosed within the outer and upper touch base body 54 of spring base 52 boss 525 outer and between the upper surface of the lower surface of spring base 52 and upper touch base body 54, for the location of stage clip 55; Because the upper surface of spring base 52, makes between the upper plane 511 of guide rod 53 with the lower end of its limited cap 532 and upper bracket 51 and forms a swing fulcrum as the boundary as a bending side take the center line of guide rod jack 523.
Upper bracket 51 in the upper touch base of the present invention is fixed on the upper connecting terminal 7, when carrying out closing operation after upper touch base body 54 links with close/open machine, spring base 52 is done swinging take angle as α, α is 20 °～30 °, and upper touch base body 54 moves up and down and the compound motion that swings.
The motion mode of the upper touch base for fuse switch of the present invention is up and down pattern with swinging and combining, after linking with the close/open machine that increases newly, just can realize the action message of fusing carrier on/off switch, and when ensuring larger contact, as long as there is less operating physical force just can carry out the on/off switch operation.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (4)
1. upper touch base that is used for fuse switch, described fuse switch comprises fusing carrier, leverage, upper and lower touch base, close/open machine, insulating part, upper and lower binding post and upper and lower inserts, described upper touch base comprises touch base body, upper bracket, spring base, guide rod and stage clip, it is characterized in that
Described upper bracket comprises plane on one and is vertically connected on the lower cover of rear and front end, plane, and its cross section is doorframe shape, on its upper plane from left to right coaxially the interval offer dual-purpose connecting hole and a waist type pilot hole in connecting upper connecting terminal;
Described spring base is a rectangular slab, and two connecting holes are offered on the left side of its upper surface, and offers on the right a guide rod jack and form an angle as the inclined-plane of α as the boundary to the bending one downwards of its right-hand member direction with upper surface take the center line of this guide rod jack;
The bar section of described guide rod and the guide rod jack of spring base mate and can swing in the pilot hole of upper bracket, and the upper end of bar section is provided with a limited cap, and the bottom surface of bar section is provided with a rivet blind hole;
The left side of described upper touch base body is a thin flat plate, and the left side upper surface of this thin flat plate is offered two connecting holes, and the rear and front end of this thin flat plate bends downwards respectively and offers an interlock pin-and-hole on a linkage board and this linkage board; The right that should upper touch base body also forms a circular platform type draw-in groove for thin flat plate and at medium position by the punching press that makes progress of its lower surface, offers a rivet at the end face of this draw-in groove; The rear and front end of touch base body and the intersection that is positioned at its left side and the right are respectively equipped with a lock buckling groove on described;
Described guide rod is plugged on successively in the guide rod jack of pilot hole, spring base of upper bracket and by rivet and is connected with upper touch base, described stage clip be installed on the guide rod and the end face of the outer draw-in groove that is enclosed within the touch base body outer and between the upper surface of the lower surface of spring base and upper touch base body;
Described upper bracket is fixed on the upper connecting terminal, and when carrying out closing operation after described upper touch base body and the interlock of described close/open machine, described spring base is done swinging take angle as α, and described upper touch base body moves up and down and the compound motion that swings.
2. the upper touch base for fuse switch according to claim 1 is characterized in that, described α is 20 °～30 °.
3. the upper touch base for fuse switch according to claim 1 is characterized in that, the upper plane of described upper bracket is along its length direction punching press one trapezoidal groove.
4. the upper touch base for fuse switch according to claim 1 is characterized in that, the lower surface of described spring base is provided with the cylindrical boss that be used for stage clip location coaxial with described guide rod jack, and described stage clip is enclosed within outward outside this boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910054120 CN101937805B (en) | 2009-06-30 | 2009-06-30 | Upper contact base of drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910054120 CN101937805B (en) | 2009-06-30 | 2009-06-30 | Upper contact base of drop-out fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101937805A CN101937805A (en) | 2011-01-05 |
| CN101937805B true CN101937805B (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910054120 Expired - Fee Related CN101937805B (en) | 2009-06-30 | 2009-06-30 | Upper contact base of drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101937805B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681150B (en) * | 2013-12-12 | 2015-07-08 | 国网上海市电力公司 | Upper contact base of drop-out fuse |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827010A (en) * | 1972-03-06 | 1974-07-30 | Westinghouse Electric Corp | Composite sectionalized open-type drop-out-type fusible output with series enclosed current limiting fuse |
| US4857879A (en) * | 1987-07-02 | 1989-08-15 | Brown Boveri (Australia) Pty, Limited | Drop-out expulsion fuse |
| CN2379895Y (en) * | 1999-06-30 | 2000-05-24 | 泰州市电力机械有限公司 | Mechanism for interlocking outdoor high voltage vacuum breaker and isolating switch |
| CN1639926A (en) * | 2002-10-22 | 2005-07-13 | 罗伯特-博希股份公司 | Contactor seat |
| CN201465955U (en) * | 2009-06-30 | 2010-05-12 | 浙江赛菲特电气有限公司 | Swing structure of upper contact pedestal for drop-out fuse |
-
2009
- 2009-06-30 CN CN 200910054120 patent/CN101937805B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827010A (en) * | 1972-03-06 | 1974-07-30 | Westinghouse Electric Corp | Composite sectionalized open-type drop-out-type fusible output with series enclosed current limiting fuse |
| US4857879A (en) * | 1987-07-02 | 1989-08-15 | Brown Boveri (Australia) Pty, Limited | Drop-out expulsion fuse |
| CN2379895Y (en) * | 1999-06-30 | 2000-05-24 | 泰州市电力机械有限公司 | Mechanism for interlocking outdoor high voltage vacuum breaker and isolating switch |
| CN1639926A (en) * | 2002-10-22 | 2005-07-13 | 罗伯特-博希股份公司 | Contactor seat |
| CN201465955U (en) * | 2009-06-30 | 2010-05-12 | 浙江赛菲特电气有限公司 | Swing structure of upper contact pedestal for drop-out fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101937805A (en) | 2011-01-05 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20130630 |