CN202473672U - Insulation switch moving contact capable of preventing discharging - Google Patents
Insulation switch moving contact capable of preventing discharging Download PDFInfo
- Publication number
- CN202473672U CN202473672U CN2012200966333U CN201220096633U CN202473672U CN 202473672 U CN202473672 U CN 202473672U CN 2012200966333 U CN2012200966333 U CN 2012200966333U CN 201220096633 U CN201220096633 U CN 201220096633U CN 202473672 U CN202473672 U CN 202473672U
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- moving contact
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- main body
- ring
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Abstract
The utility model relates to the field of switch equipment, and in particular relates to a moving contact. An insulation switch moving contact capable of preventing discharging comprises a moving contact device, wherein the moving contact device comprises a moving contact and a grading ring positioned on the contact end of the moving contact; the grading ring is provided with a starting rod; and the starting rod is connected with the moving contact through the grading ring. Because the technical scheme is adopted, the insulation switch moving contact capable of preventing discharging provided by the utility model is simple in structure, is low in manufacturing cost; an electric arc generated when the static contact and the moving contact are separated discharges, the discharge can be borne by the starting rod replacing the moving contact, the moving contact is effectively protected from abrasion caused by burning, and the actual service life of the moving contact is prolonged.
Description
Technical field
The utility model relates to the switchgear field, is specifically related to a kind of moving contact.
Background technology
Isolating switch is to use maximum a kind of electrical equipment in the high-voltage switch electric appliance; In circuit, play itself the operation principle and relatively simple for structure of isolating switch of buffer action; But because its utilization rate is frequent; Functional reliability requires high, and the safe operation of transformer station, power plant is played bigger influence.Wherein, SSBII (AM)-525 type isolating switch just is widely used by some alternating current-direct current transformer stations at present; The moving contact of this type isolating switch does not have the arc extinguishing ability, and this makes moving contact and fixed contact in the separating brake process, be easy to generate flash burn, can form certain wearing and tearing to moving contact; Reduce the useful life of moving contact, operation power is caused certain potential safety hazard.
The utility model content
The purpose of the utility model is to provide a kind of isolating switch moving contact of discharging avoided, and solves above technical problem.
The technical problem that the utility model solved can adopt following technical scheme to realize:
A kind of isolating switch moving contact of discharging avoided; Comprise a trigger device; Said trigger device comprises that a moving contact, is positioned at the grading ring of said moving contact contact jaw; It is characterized in that said grading ring is provided with a starting rod, said starting rod connects said moving contact through said grading ring.
The starting rod of the utility model is when isolating switch is opened a sluice gate; Can the electric energy that arc discharge between said moving contact and the fixed contact produces be guided on the said starting rod; High-tension electricity when said starting rod replaces said moving contact to bear discharge, the high temperature of protecting said moving contact to avoid arc discharge is burnt.
Said starting rod comprises a circular-arc main body, two connecting elementss, and said circular-arc main body two ends connect said connecting elements respectively, and said circular-arc main body is through the said connecting elements said grading ring that removably connects.Said starting rod utilizes said connecting elements and said uniform ring to removably connect; When said trigger device is connected with said fixed contact; Said starting rod does not act on; But when the moment that said trigger device and said fixed contact separate, said starting rod still keeps being connected with said fixed contact, and the electric energy that said moving contact is residual is directed on himself; After said starting rod and said fixed contact thoroughly separate, replace said moving contact to discharge residual electric energy, heat release by said starting rod.
Said grading ring comprises two circle ring parts, and the circle ring part that is positioned at said grading ring top is last annulus, and the circle ring part that is positioned at said grading ring below is annulus down, and said annulus down is a ring-type pipe.
Said circular-arc main body is positioned at said grading ring below, and the radius of said circular-arc main body is more than or equal to the said radius of annulus down.So that when said fixed contact separates with trigger device, said circular-arc main body contacts with said fixed contact.
Said connecting elements comprises that one connects rod member, a connecting ring; Said connection rod member connects said connecting ring; The cross section of said connecting ring is circular arc, and the central angle of said circular arc is greater than 180 °, and the radius of said circular arc equals the said pipe radius of annulus down.So that what coupling member was more firm is connected with said grading ring, avoid said starting rod to break away from the volley.
The connecting elements that is connected with said circular-arc main body left end is left connecting elements, and the connecting elements that is connected with said circular-arc main body right-hand member is right connecting elements.
The connection rod member of said left connecting elements connects said circular-arc main body, and the connecting ring of said left connecting elements is to said circular-arc main body inside bend; The connection rod member of said right connecting elements connects said circular-arc main body, and the connecting ring of said right connecting elements is to said circular-arc main body outside curve.
The center of circle of said left connecting elements and the center of circle of said right connecting elements are positioned on the same horizontal plane.
The starting rod that said starting rod adopts the silver tungsten material to process.
Beneficial effect: owing to adopt technique scheme; Simple in structure, the low preparation cost of the utility model; The arc discharge that when fixed contact separates with moving contact, produces; Can replace moving contact to bear by starting rod, effectively protect moving contact to avoid burning and the wearing and tearing that cause, improve the actual life of moving contact.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the starting rod sketch map of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, Fig. 2; A kind of isolating switch moving contact of discharging avoided comprises a trigger device, and trigger device comprises that a moving contact, is positioned at the grading ring 3 of moving contact contact jaw; Grading ring 3 is provided with a starting rod 1, and starting rod 1 connects moving contact through grading ring 3.The starting rod 1 of the utility model is when isolating switch is opened a sluice gate; Can the electric energy that arc discharge between moving contact and the fixed contact produces be guided on the starting rod 1; High-tension electricity when starting rod 1 replaces moving contact to bear discharge, protection moving contact are avoided the high temperature of arc discharge and are burnt.
Starting rod 1 comprises a circular-arc main body 11, two connecting elementss, and circular-arc main body 11 two ends connect connecting elements respectively, and circular-arc main body 11 is through the connecting elements grading ring 3 that removably connects.Starting rod 1 utilizes connecting elements and uniform ring to removably connect; When trigger device was connected with fixed contact, starting rod 1 did not act on, but when moment that trigger device and fixed contact separate; Starting rod 1 still keeps being connected with fixed contact; And the electric energy that moving contact is residual is directed on himself, after starting rod 1 and fixed contact thoroughly separate, replaces moving contact to discharge residual electric energy, heat release by starting rod 1.
Grading ring 3 comprises two circle ring parts, and the circle ring part that is positioned at the grading ring top is last annulus, and the circle ring part that is positioned at the grading ring below is following annulus 31, and following annulus 31 is a ring-type pipe.Circular-arc main body 11 is positioned at grading ring 3 belows, and the radius of circular-arc main body 11 is more than or equal to the radius of following annulus 31.So that when fixed contact separates with trigger device, circular-arc main body 11 contacts with fixed contact.
Connecting elements comprises that one connects rod member, a connecting ring, connects rod member and connects connecting ring, and the cross section of connecting ring is circular arc, and the central angle of circular arc is greater than 180 °, and the radius of circular arc equals the pipe radius of annulus down.So that what coupling member was more firm is connected with grading ring, avoid starting rod 1 to break away from the volley.The connecting elements that is connected with circular-arc main body 11 left ends is left connecting elements 12, and the connecting elements that is connected with circular-arc main body right-hand member is right connecting elements 13.The connection rod member of left side connecting elements 12 connects circular-arc main body 11, and the connecting ring of left connecting elements 12 is to circular-arc main body 11 inside bend; The connection rod member of right connecting elements 13 connects circular-arc main body 11, and the connecting ring of right connecting elements 13 is to circular-arc main body 11 outside curve.Left side connecting elements 12 is different with the bending direction of right connecting elements 13, and left connecting elements 12 hearts and right connecting elements 13 hearts are positioned on the same horizontal plane.So that left connecting elements 12 can be connected with following annulus 31 with right connecting elements 13 simultaneously, make circular arc main body 11 be parallel to annulus, circular arc main body 11 can better contact with fixed contact.The starting rod that starting rod 1 adopts the silver tungsten material to process.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (9)
1. can avoid the isolating switch moving contact that discharges for one kind; Comprise a trigger device; Said trigger device comprises that a moving contact, is positioned at the grading ring of said moving contact contact jaw; It is characterized in that said grading ring is provided with a starting rod, said starting rod connects said moving contact through said grading ring.
2. a kind of isolating switch moving contact of discharging avoided according to claim 1; It is characterized in that: said starting rod comprises a circular-arc main body, two connecting elementss; Said circular-arc main body two ends connect said connecting elements respectively, and said circular-arc main body is through the said connecting elements said grading ring that removably connects.
3. a kind of isolating switch moving contact of discharging avoided according to claim 2; It is characterized in that: said grading ring comprises two circle ring parts; The circle ring part that is positioned at said grading ring top is last annulus; The circle ring part that is positioned at said grading ring below is following annulus, and said annulus down is a ring-type pipe.
4. a kind of isolating switch moving contact of discharging avoided according to claim 3 is characterized in that: said circular-arc main body is positioned at said grading ring below, and the radius of said circular-arc main body is more than or equal to the said radius of annulus down.
5. a kind of isolating switch moving contact of discharging avoided according to claim 4 is characterized in that: said connecting elements comprises that one connects rod member, a connecting ring, and said connection rod member connects said connecting ring;
The cross section of said connecting ring is circular arc, and the central angle of said circular arc is greater than 180 °, and the radius of said circular arc equals the said pipe radius of annulus down.
6. a kind of isolating switch moving contact of discharging avoided according to claim 5, it is characterized in that: the connecting elements that is connected with said circular-arc main body left end is left connecting elements, the connecting elements that is connected with said circular-arc main body right-hand member is right connecting elements.
7. a kind of isolating switch moving contact of discharging avoided according to claim 6, it is characterized in that: the connection rod member of said left connecting elements connects said circular-arc main body, and the connecting ring of said left connecting elements is to said circular-arc main body inside bend;
The connection rod member of said right connecting elements connects said circular-arc main body, and the connecting ring of said right connecting elements is to said circular-arc main body outside curve.
8. a kind of isolating switch moving contact of discharging avoided according to claim 7, it is characterized in that: the center of circle of said left connecting elements and the center of circle of said right connecting elements are positioned on the same horizontal plane.
9. a kind of isolating switch moving contact of discharging avoided of stating according to claim 8 is characterized in that: the starting rod that said starting rod adopts the silver tungsten material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200966333U CN202473672U (en) | 2012-03-15 | 2012-03-15 | Insulation switch moving contact capable of preventing discharging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200966333U CN202473672U (en) | 2012-03-15 | 2012-03-15 | Insulation switch moving contact capable of preventing discharging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473672U true CN202473672U (en) | 2012-10-03 |
Family
ID=46921815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200966333U Expired - Fee Related CN202473672U (en) | 2012-03-15 | 2012-03-15 | Insulation switch moving contact capable of preventing discharging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473672U (en) |
-
2012
- 2012-03-15 CN CN2012200966333U patent/CN202473672U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20200315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |