CN105977073A - Nozzle connection structure, arc extinguish chamber using the same and breaker using the same - Google Patents
Nozzle connection structure, arc extinguish chamber using the same and breaker using the same Download PDFInfo
- Publication number
- CN105977073A CN105977073A CN201610397627.4A CN201610397627A CN105977073A CN 105977073 A CN105977073 A CN 105977073A CN 201610397627 A CN201610397627 A CN 201610397627A CN 105977073 A CN105977073 A CN 105977073A
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- CN
- China
- Prior art keywords
- moving contact
- bulge loop
- spout
- connection structure
- central diameter
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
Abstract
The invention relates to the high voltage electrical equipment control field and discloses a nozzle connection structure, an arc extinguish chamber using the same and a breaker using the same. The nozzle connection structure comprises a nozzle and a moving contact which are respectively arranged in front and at the back; the outer side of the nozzle is sleeved by a flow guiding ring which is internally provided with a stepped hole with the front end being small and rear end being big; the rear side of the nozzle is provided with a protruded ring which protrudes outwardly; and the protruded ring is clamped in the stepped hole of the flow guide ring by a flow guide ring and the moving contact. In the nozzle connection structure, the arc extinguish chamber and the breaker, the protruded ring of the nozzle is clamped in the stepped hole of the flow guide ring by the flow guide ring and the moving contact, and a breaker nozzle is fixed on the moving contact by virtue of the flow guiding ring. Compared with the traditional direct bolt joint, the nozzle connection structure has reliable connection, reduces the possibility of looseness of the nozzle and prevents foreign matters produced by nozzle wearing.
Description
Technical field
The present invention relates to high voltage electric equipment control field, be specifically related to a kind of nozzle connection structure and use arc-chutes and the chopper of this structure.
Background technology
In arc-extinguishing chamber of circuit breaker, the assembling mode of spout is directly installed on moving contact generally by threaded, and during use, even coming off easily occurs loosening in threaded connection place, and this connected mode reliability is low.During screw thread degree of tightness, after spout abrasion, also can produce foreign body.It addition, spout is directly screwedly mounted on moving contact, it is difficult to ensure the sealing property between spout and moving contact, and spout may be caused when vibrating excessive to damage.
Summary of the invention
It is an object of the invention to provide a kind of nozzle connection structure reducing the probability that spout loosens and use arc-chutes and the chopper of this structure.
For achieving the above object, the technical scheme of nozzle connection structure of the present invention is: nozzle connection structure includes spout and the moving contact front and back arranged, the outer sheath of described spout is equipped with guide ring, pre-small post-large shoulder hole it is provided with in guide ring, the rear side of described spout is provided with the bulge loop of outwardly convex, and the diversed ring of described bulge loop and moving contact are clamped in the shoulder hole of guide ring.
Described shoulder hole is three grades of shoulder holes, including path section from front to back, central diameter section and big footpath section, described bulge loop coordinates with described central diameter section seam, bulge loop coordinates with the step surface block between path section with central diameter section forward, described moving contact coordinates with described big footpath section seam, and the step surface block between the front end face of moving contact with central diameter Duan Yu great footpath section coordinates.
The sealing ring being in compressive state it is provided with between the rear end face of the front end face of described moving contact and the bulge loop of spout.
The degree of depth of described central diameter section more than bulge loop axially on thickness, and difference between the two is not more than the theoretical compression amount of described sealing ring.
Described sealing ring is rubber ring, and the front end face of moving contact and/or the rear end face of bulge loop are provided with the mounting groove for installing sealing ring.
Described moving contact is fixed on guide ring by flange arrangement.
The technical scheme of arc-chutes of the present invention is: arc-chutes include nozzle connection structure, nozzle connection structure includes spout and the moving contact front and back arranged, the outer sheath of described spout is equipped with guide ring, pre-small post-large shoulder hole it is provided with in guide ring, the rear side of described spout is provided with the bulge loop of outwardly convex, and the diversed ring of described bulge loop and moving contact are clamped in the shoulder hole of guide ring.
Described shoulder hole is three grades of shoulder holes, including path section from front to back, central diameter section and big footpath section, described bulge loop coordinates with described central diameter section seam, bulge loop coordinates with the step surface block between path section with central diameter section forward, described moving contact coordinates with described big footpath section seam, and the step surface block between the front end face of moving contact with central diameter Duan Yu great footpath section coordinates；Be provided with the sealing ring being in compressive state between the rear end face of the front end face of described moving contact and the bulge loop of spout, the degree of depth of described central diameter section more than bulge loop axially on thickness, and difference between the two is not more than the theoretical compression amount of described sealing ring.
The technical scheme of chopper of the present invention is: chopper includes nozzle connection structure, nozzle connection structure includes spout and the moving contact front and back arranged, the outer sheath of described spout is equipped with guide ring, pre-small post-large shoulder hole it is provided with in guide ring, the rear side of described spout is provided with the bulge loop of outwardly convex, and the diversed ring of described bulge loop and moving contact are clamped in the shoulder hole of guide ring.
Described shoulder hole is three grades of shoulder holes, including path section from front to back, central diameter section and big footpath section, described bulge loop coordinates with described central diameter section seam, bulge loop coordinates with the step surface block between path section with central diameter section forward, described moving contact coordinates with described big footpath section seam, and the step surface block between the front end face of moving contact with central diameter Duan Yu great footpath section coordinates；Be provided with the sealing ring being in compressive state between the rear end face of the front end face of described moving contact and the bulge loop of spout, the degree of depth of described central diameter section more than bulge loop axially on thickness, and difference between the two is not more than the theoretical compression amount of described sealing ring.
The invention has the beneficial effects as follows: in the present invention, spout is provided with the bulge loop of outwardly convex, the diversed ring of bulge loop and moving contact are clamped in the shoulder hole of guide ring, by guide ring, nozzle of circuit breaker is fixed on moving contact, compared with traditional installation that is directly spirally connected, connect the most reliable, reduce the probability that spout loosens, avoid spout abrasion to produce foreign body simultaneously.
Further, bulge loop coordinates with described central diameter section seam, realize the coaxial centering between spout with guide ring, moving contact coordinates with big footpath section seam, realize the coaxial centering between guide ring with moving contact, thus ensure spout, guide ring, moving contact three coaxially, improve the reliability coordinated with static contact further.
Further, between moving contact and spout, it is provided with the sealing ring being in compressive state, on the one hand ensures to compress all the time between spout and moving contact, prevent spout from loosening, it is ensured that the sealing property between spout and moving contact；On the other hand Vibrant buffer is provided for spout, it is to avoid spout is damaged because vibration is excessive.
Further, thickness on the degree of depth of central diameter section is axial more than bulge loop, and difference between the two is not more than the theoretical compression amount of described sealing ring, after guide ring assembles with moving contact, little fit-up gap is still had between front end face and the rear end face of spout of moving contact, the existence of fit-up gap can avoid the assembling internal stress that spout causes because of flatulence of heat type, and the decrement of sealing ring can compensate the deformation of expanding with heat and contract with cold of part tolerance and spout.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of nozzle connection structure of the present invention；
Fig. 2 is the partial enlarged drawing of Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
The specific embodiment of the nozzle connection structure of the present invention, as shown in Figure 1 to Figure 2, nozzle connection structure includes the spout 1 front and back arranged and moving contact 2 and is sleeved on the guide ring 3 outside spout 1, pre-small post-large shoulder hole it is provided with in guide ring 3, the rear side of spout 1 is provided with the bulge loop 11 of outwardly convex, and the diversed ring of bulge loop 11 3 and moving contact 2 are clamped in shoulder hole.Shoulder hole is three grades of shoulder holes, including path section from front to back, central diameter section 31 and big footpath section 32.Bulge loop 11 coordinates with central diameter section 31 seam, and the step surface block between the front end face of bulge loop 11 with path section with central diameter section 31 coordinates, it is achieved that the coaxial centering between spout 1 with guide ring 3.The front end of moving contact 2 is provided with the flange arrangement of band male half coupling, moving contact 2 coordinates with big footpath section 32 seam, step surface block between the front end face of moving contact 2 with central diameter section 31 with big footpath section 32 coordinates, achieving the coaxial centering between guide ring 3 with moving contact 2, the flange arrangement of moving contact 2 is fixed on guide ring 3 by circumferentially distributed bolt 5.
The front end face of moving contact 2 is provided with mounting groove, is provided with the sealing ring 4 made with rubber in mounting groove.During assembling, sealing ring 4 is loaded in the mounting groove of moving contact 2 front end, then guide ring 3 is enclosed within spout 1 outside, and docks with moving contact 2, making guide ring 3 be fastenedly connected with moving contact 2 finally by bolt 5, the sealing ring 4 between bulge loop 11 rear end face and moving contact 2 is in compressive state.The degree of depth of central diameter section 31 more than bulge loop 11 axially on thickness, and the difference between the central diameter section degree of depth and bulge loop thickness is not more than the theoretical compression amount of sealing ring.That is, after guide ring 3 assembles with moving contact 2, fit-up gap is still had between front end face and the rear end face of bulge loop 11 of moving contact 2, sealing ring 4 is in compressive state, can be compressed by spout 1 forward, fit-up gap can avoid the assembling internal stress that spout 1 causes because of flatulence of heat type, and the theoretical compression amount of sealing ring 4 can compensate the deformation of expanding with heat and contract with cold of part tolerance and spout 1, ensure that spout is the most compacted simultaneously, prevent spout from loosening.
In the present invention, spout is provided with the bulge loop of outwardly convex, the diversed ring of bulge loop and moving contact are clamped in the shoulder hole of guide ring, by guide ring, nozzle of circuit breaker is fixed on moving contact, compared with traditional installation that is directly spirally connected, connect the most reliable, reduce the probability that spout loosens, avoid spout abrasion to produce foreign body simultaneously.Bulge loop coordinates with described central diameter section seam, realizing the coaxial centering between spout with guide ring, moving contact coordinates with big footpath section seam, it is achieved the coaxial centering between guide ring with moving contact, thus ensure spout, guide ring, moving contact three coaxially, improve the reliability coordinated with static contact further.It is provided with the sealing ring being in compressive state between moving contact and spout, on the one hand ensures to compress all the time between spout and moving contact, prevent spout from loosening, it is ensured that the sealing property between spout and moving contact；On the other hand Vibrant buffer is provided for spout, it is to avoid spout is damaged because vibration is excessive.Thickness on the degree of depth of central diameter section is axial more than bulge loop, and difference between the two is not more than the theoretical compression amount of described sealing ring, after guide ring assembles with moving contact, little fit-up gap is still had between front end face and the rear end face of spout of moving contact, fit-up gap can avoid the assembling internal stress that spout causes because of flatulence of heat type, deformation that the decrement of sealing ring can compensate part tolerance and spout expands with heat and contract with cold.
In other embodiments, the shoulder hole in guide ring may be omitted with big footpath section, uses two-stage shoulder hole.
In other embodiments, the mounting groove being used for installing sealing ring also may be provided on the rear end face of spout or is located at spout and moving contact simultaneously.
The arc-chutes of the present invention include nozzle connection structure, and nozzle connection structure is identical with the structure of the nozzle connection structure in above-described embodiment, does not repeats them here.
The chopper of the present invention includes nozzle connection structure, and nozzle connection structure is identical with the structure of the nozzle connection structure in above-described embodiment, does not repeats them here.
Claims (10)
1. nozzle connection structure, including the spout front and back arranged and moving contact, it is characterized in that: the outer sheath of described spout is equipped with guide ring, pre-small post-large shoulder hole it is provided with in guide ring, the rear side of described spout is provided with the bulge loop of outwardly convex, and the diversed ring of described bulge loop and moving contact are clamped in the shoulder hole of guide ring.
Nozzle connection structure the most according to claim 1, it is characterized in that: described shoulder hole is three grades of shoulder holes, including path section from front to back, central diameter section and big footpath section, described bulge loop coordinates with described central diameter section seam, bulge loop coordinates with the step surface block between path section with central diameter section forward, described moving contact coordinates with described big footpath section seam, and the step surface block between the front end face of moving contact with central diameter Duan Yu great footpath section coordinates.
Nozzle connection structure the most according to claim 2, it is characterised in that: it is provided with the sealing ring being in compressive state between the rear end face of the front end face of described moving contact and the bulge loop of spout.
Nozzle connection structure the most according to claim 3, it is characterised in that: the degree of depth of described central diameter section more than bulge loop axially on thickness, and difference between the two is not more than the theoretical compression amount of described sealing ring.
5. according to the nozzle connection structure described in claim 3 or 4, it is characterised in that: described sealing ring is rubber ring, and the front end face of moving contact and/or the rear end face of bulge loop are provided with the mounting groove for installing sealing ring.
Nozzle connection structure the most according to claim 1, it is characterised in that: described moving contact is fixed on guide ring by flange arrangement.
7. arc-chutes, including nozzle connection structure, nozzle connection structure includes spout and the moving contact front and back arranged, it is characterized in that: the outer sheath of described spout is equipped with guide ring, pre-small post-large shoulder hole it is provided with in guide ring, the rear side of described spout is provided with the bulge loop of outwardly convex, and the diversed ring of described bulge loop and moving contact are clamped in the shoulder hole of guide ring.
Arc-chutes the most according to claim 7, it is characterized in that: described shoulder hole is three grades of shoulder holes, including path section from front to back, central diameter section and big footpath section, described bulge loop coordinates with described central diameter section seam, bulge loop coordinates with the step surface block between path section with central diameter section forward, described moving contact coordinates with described big footpath section seam, and the step surface block between the front end face of moving contact with central diameter Duan Yu great footpath section coordinates；Be provided with the sealing ring being in compressive state between the rear end face of the front end face of described moving contact and the bulge loop of spout, the degree of depth of described central diameter section more than bulge loop axially on thickness, and difference between the two is not more than the theoretical compression amount of described sealing ring.
9. chopper, including nozzle connection structure, nozzle connection structure includes spout and the moving contact front and back arranged, it is characterized in that: the outer sheath of described spout is equipped with guide ring, pre-small post-large shoulder hole it is provided with in guide ring, the rear side of described spout is provided with the bulge loop of outwardly convex, and the diversed ring of described bulge loop and moving contact are clamped in the shoulder hole of guide ring.
Chopper the most according to claim 9, it is characterized in that: described shoulder hole is three grades of shoulder holes, including path section from front to back, central diameter section and big footpath section, described bulge loop coordinates with described central diameter section seam, bulge loop coordinates with the step surface block between path section with central diameter section forward, described moving contact coordinates with described big footpath section seam, and the step surface block between the front end face of moving contact with central diameter Duan Yu great footpath section coordinates；Be provided with the sealing ring being in compressive state between the rear end face of the front end face of described moving contact and the bulge loop of spout, the degree of depth of described central diameter section more than bulge loop axially on thickness, and difference between the two is not more than the theoretical compression amount of described sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397627.4A CN105977073B (en) | 2016-06-07 | 2016-06-07 | Nozzle connection structure and the arc-chutes and breaker using the structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397627.4A CN105977073B (en) | 2016-06-07 | 2016-06-07 | Nozzle connection structure and the arc-chutes and breaker using the structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105977073A true CN105977073A (en) | 2016-09-28 |
| CN105977073B CN105977073B (en) | 2018-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610397627.4A Active CN105977073B (en) | 2016-06-07 | 2016-06-07 | Nozzle connection structure and the arc-chutes and breaker using the structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105977073B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523980A (en) * | 2020-04-15 | 2021-10-22 | 南京德朔实业有限公司 | Grinding machine |
| CN114400172A (en) * | 2021-12-10 | 2022-04-26 | 河南平高电气股份有限公司 | Spout and explosion chamber of explosion chamber |
| CN114496615A (en) * | 2022-02-14 | 2022-05-13 | 平高集团有限公司 | Spout connection structure and explosion chamber and circuit breaker |
| CN114400172B (en) * | 2021-12-10 | 2024-04-19 | 河南平高电气股份有限公司 | Nozzle of arc extinguishing chamber and arc extinguishing chamber |
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| CN1069363A (en) * | 1991-08-02 | 1993-02-24 | Gec阿尔斯托姆有限公司 | The medium-pressure or high pressure circuit breaker that has arcing contact |
| US5229561A (en) * | 1991-03-13 | 1993-07-20 | Hitachi, Ltd. | Puffer-type gas circuit breaker |
| CN101162663A (en) * | 2007-10-22 | 2008-04-16 | 沈阳工业大学 | Cyclone type nozzle high-pressure blowing circuit breakers with groove |
| CN101752153A (en) * | 2009-11-30 | 2010-06-23 | 河南平高电气股份有限公司 | Dynamic arc contact, and installing method and special tool thereof |
| CN205244398U (en) * | 2015-12-22 | 2016-05-18 | 四川丹罗斯环保科技有限公司 | Condensate pump mechanical seal |
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2016
- 2016-06-07 CN CN201610397627.4A patent/CN105977073B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5229561A (en) * | 1991-03-13 | 1993-07-20 | Hitachi, Ltd. | Puffer-type gas circuit breaker |
| CN1069363A (en) * | 1991-08-02 | 1993-02-24 | Gec阿尔斯托姆有限公司 | The medium-pressure or high pressure circuit breaker that has arcing contact |
| CN101162663A (en) * | 2007-10-22 | 2008-04-16 | 沈阳工业大学 | Cyclone type nozzle high-pressure blowing circuit breakers with groove |
| CN101752153A (en) * | 2009-11-30 | 2010-06-23 | 河南平高电气股份有限公司 | Dynamic arc contact, and installing method and special tool thereof |
| CN205244398U (en) * | 2015-12-22 | 2016-05-18 | 四川丹罗斯环保科技有限公司 | Condensate pump mechanical seal |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523980A (en) * | 2020-04-15 | 2021-10-22 | 南京德朔实业有限公司 | Grinding machine |
| CN114400172A (en) * | 2021-12-10 | 2022-04-26 | 河南平高电气股份有限公司 | Spout and explosion chamber of explosion chamber |
| CN114400172B (en) * | 2021-12-10 | 2024-04-19 | 河南平高电气股份有限公司 | Nozzle of arc extinguishing chamber and arc extinguishing chamber |
| CN114496615A (en) * | 2022-02-14 | 2022-05-13 | 平高集团有限公司 | Spout connection structure and explosion chamber and circuit breaker |
| CN114496615B (en) * | 2022-02-14 | 2023-11-10 | 平高集团有限公司 | Spout connection structure and explosion chamber and circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105977073B (en) | 2018-07-06 |
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