CN204257561U - A kind of permanent magnetic drive circuit breaker - Google Patents
A kind of permanent magnetic drive circuit breaker Download PDFInfo
- Publication number
- CN204257561U CN204257561U CN201420864452.XU CN201420864452U CN204257561U CN 204257561 U CN204257561 U CN 204257561U CN 201420864452 U CN201420864452 U CN 201420864452U CN 204257561 U CN204257561 U CN 204257561U
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- China
- Prior art keywords
- contact
- moving contact
- magnetic
- permanent
- control device
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Abstract
The utility model relates to a kind of permanent magnetic drive circuit breaker, comprises moving contact group, stationary contact head group and arc control device, and described stationary contact head group comprises fixed contact pedestal and fixed contact; Described moving contact group comprises the embedded moving contact magnetic conductor of movable contact block, movable contact block, permanent magnetism moving contact and drives permanent magnet; Movable contact block is fixed with and is positioned at the magnetic conduction radome that arc control device surround permanent magnetism moving contact and fixed contact; Described movable contact block neighboring is connected to the arc control device of fixed contact pedestal neighboring composition sealing by seal.The utility model structure is simple, achieve the complete seal isolation of arc control device, utilize the attracting principle of homopolar-repulsion, heteropole to control dynamic and static contact folding simultaneously, reliable in action, extend circuit breaker useful life, reduce accident rate, in arc control device, introduce magnetic conduction radome, automatically at permanent magnetism moving contact, set up magnetic field between magnetic conduction fixed contact and radome, realize magnetic blow-out current interruption function, there is use value widely.
Description
Technical field
The utility model relates to a kind of circuit breaker, is specifically related to a kind of permanent magnetic drive circuit breaker.
Background technology
Current killer switch is of a great variety, and no matter its arc control device adopt SF6 arc extinguishing, vacuum extinction or oil blast, and because moving contact drives, its arc control device all cannot realize complete seal isolation, thus cause interruption of service because of seal failure.Arc quenching principle in current arc control device adopts magnetic blow-out structure of contact terminal, owing to being designed with blowout coil, causes contact dead volume to increase, has both added precious metal use amount and again limit operating current.The folding of current dynamic and static contact all adopts Spring driving, by telescopic spring execution, but along with service time elongated, spring can be tired, and elasticity is deteriorated or fracture, shortens the useful life of circuit breaker or causes accident.
Summary of the invention
For the problems referred to above, the utility model takes a kind of permanent magnetic drive circuit breaker utilizing the attracting principle of homopolar-repulsion, heteropole to control dynamic and static contact folding, extend circuit breaker useful life, reduce accident rate.
For solving the problem, the technical scheme that the utility model is taked is: a kind of permanent magnetic drive circuit breaker, comprises moving contact group, stationary contact head group and arc control device, the fixed contact being positioned at arc control device that described stationary contact head group comprises fixed contact pedestal and is fixedly connected with it; The permanent magnetism moving contact being positioned at arc control device that described moving contact group comprises the embedded moving contact magnetic conductor of movable contact block, movable contact block, be electrically connected with movable contact block and for changing moving contact magnetic conductor magnetic thus controlling the driving permanent magnet of permanent magnetism moving contact and fixed contact folding; Described movable contact block neighboring is connected to the arc control device of fixed contact pedestal neighboring composition sealing by seal.
Movable contact block is fixed with and is positioned at the magnetic conduction radome that arc control device surround permanent magnetism moving contact and fixed contact.
Permanent magnetism moving contact refers to the permanent magnet as moving contact; Moving contact magnetic conductor refers near permanent magnetism moving contact and it is produced to the magnetic conductor of active force, and magnetic conduction radome refers to the magnetic conductor as radome.Wherein permanent magnetism moving contact can move relative to movable contact block but both remain electrical connection, and electrical connection is not limited to by versions such as ripple, flexible conductor, flexible conductor sheet connect.Be between magnetic conduction radome and movable contact block, between fixed contact and fixed contact pedestal and be sealedly and fixedly connected, be tightly connected and be not limited to by versions such as welding, welding or bondings.Be vacuum or filling sulphur hexafluoride, transformer wet goods arc extinguishing dielectric in described arc control device.In arc control device, introduce magnetic conduction radome, automatically at permanent magnetism moving contact, set up magnetic field between fixed contact and radome, realize magnetic blow-out current interruption function.
Described moving contact magnetic conductor one end is near permanent magnetism moving contact, and the other end stretches out movable contact block near driving permanent magnet.Moving contact magnetic conductor one end is positioned at arc control device and fixed contact generation opening and closing movement, and one end is near driving permanent magnet.Along with the change driving permanent magnet polarity, moving contact magnetic conductor is geomagnetic into the magnet of corresponding polarity.
Described driving permanent magnet is rotating permanent magnet.Change the magnetic pole near moving contact magnetic conductor by rotating permanent magnet, moving contact magnetic conductor is magnetized to the magnet to magnetropism, control the action of permanent magnetism moving contact according to the attracting principle of homopolar-repulsion heteropole, thus control the folding of fixed contact, permanent magnetism moving contact.
A described rotary permanent-magnet outer periphery part is near moving contact magnetic conductor, and remainder is surrounded by pole shoe; Pole shoe two ends are corresponding with magnetic conduction radome both sides.The shielding of described rotating permanent magnet, rotary permanent-magnet pole shoe and magnetic conduction is covered with communicated magnetic circuit relation.Magnetic conduction radome transmits magnetic force, realizes arc control device static state totally-enclosed, prevents corrugated body or shaft seal ageing failure to cause arc control device explosion accident.
Described driving permanent magnet is movable permanent magnet body.Become the magnetic pole near moving contact magnetic conductor by movable permanent magnet structural reform, moving contact magnetic conductor is magnetized to the magnet to magnetropism, control the action of permanent magnetism moving contact according to the attracting principle of homopolar-repulsion heteropole, thus control the folding of fixed contact, permanent magnetism moving contact.Rotating permanent magnet or movable permanent magnet body change near the magnetic pole of moving contact magnetic conductor the actuator be connected with rotating permanent magnet or movable permanent magnet body can be relied on to realize, described actuator be not limited to electronic, surge or the version such as pneumatic.
Described movable permanent magnet body is made up of the permanent magnet that at least two connect through synonyms pole end, and every two adjacent distance between two poles of the same name equal the width of magnetic conduction radome.Thus when ensureing that permanent magnetism moving contact contacts with fixed contact, the magnetic pole of the same name that two of movable permanent magnet body are adjacent is corresponding with the both sides of magnetic conduction radome.Object makes the magnetic on magnetic conduction radome and magnetic conductor or dynamic and static contact different, and movable permanent magnet body and magnetic conduction shielding are covered with communicated magnetic circuit relation, thus when making circuit breaker opening and closing produce electric arc, produce magnetic quenching effect under electromagnetic force.
The utility model structure is simple, achieves the complete seal isolation of arc control device, utilizes the attracting principle of homopolar-repulsion, heteropole to control dynamic and static contact folding, reliable in action simultaneously, extends circuit breaker useful life, reduces accident rate.In addition, in arc control device, introduce magnetic conduction radome, automatically at permanent magnetism moving contact, set up magnetic field between magnetic conduction fixed contact and radome, realize magnetic blow-out current interruption function, there is use value widely.
Accompanying drawing explanation
Fig. 1 is that embodiment 1 disconnects schematic diagram;
Fig. 2 is that embodiment 1 closes schematic diagram;
Fig. 3 is that embodiment 2 disconnects schematic diagram;
Fig. 4 is that embodiment 2 closes schematic diagram;
Fig. 5 is that embodiment 3 disconnects schematic diagram;
Fig. 6 is that embodiment 3 closes schematic diagram;
Fig. 7 is that embodiment 4 disconnects schematic diagram;
Fig. 8 is that embodiment 4 closes schematic diagram;
Wherein, 1, fixed contact, 2, seal, 3, arc control device, 4, permanent magnetism moving contact, 5, movable contact block, 6, moving contact magnetic conductor, 7 rotating permanent magnets, 8, movable permanent magnet body, 9, fixed contact pedestal, 10, pole shoe, 11, magnetic conduction radome.
Embodiment
embodiment 1
A kind of permanent magnetic drive circuit breaker, as shown in Figure 1 and Figure 2, comprises moving contact group, stationary contact head group and arc control device 3, the fixed contact 1 being positioned at arc control device 3 that described stationary contact head group comprises fixed contact pedestal 9 and is fixedly connected with it; The permanent magnetism moving contact 4 being positioned at arc control device 3 that described moving contact group comprises the embedded moving contact magnetic conductor 6 of movable contact block 5, movable contact block 5, be electrically connected with movable contact block 5 and for changing moving contact magnetic conductor 6 magnetic thus controlling the rotating permanent magnet 7 of permanent magnetism moving contact 4 and fixed contact 1 folding; Described movable contact block 5 neighboring is connected to the arc control device 3 of fixed contact pedestal 9 neighboring composition sealing by seal 2.Described moving contact magnetic conductor 6 one end is near permanent magnetism moving contact 4, and the other end stretches out movable contact block 5 near rotating permanent magnet 7.
embodiment 2
A kind of permanent magnetic drive circuit breaker, as shown in Figure 3, Figure 4, comprises moving contact group, stationary contact head group and arc control device 3, the fixed contact 1 being positioned at arc control device 3 that described stationary contact head group comprises fixed contact pedestal 9 and is fixedly connected with it; The permanent magnetism moving contact 4 being positioned at arc control device 3 that described moving contact group comprises the embedded moving contact magnetic conductor 6 of movable contact block 5, movable contact block 5, be electrically connected with movable contact block 5 and for changing moving contact magnetic conductor 6 magnetic thus controlling the movable permanent magnet body 8 of permanent magnetism moving contact 4 and fixed contact 1 folding; Described movable contact block 5 neighboring is connected to the arc control device 3 of fixed contact pedestal 9 neighboring composition sealing by seal 2.Described moving contact magnetic conductor 6 one end is near permanent magnetism moving contact 4, and the other end stretches out movable contact block 5 near movable permanent magnet body 8.
embodiment 3
A kind of permanent magnetic drive circuit breaker, as shown in Figure 5, Figure 6, comprises moving contact group, stationary contact head group and arc control device 3, the fixed contact 1 being positioned at arc control device 3 that described stationary contact head group comprises fixed contact pedestal 9 and is fixedly connected with it; The permanent magnetism moving contact 4 being positioned at arc control device 3 that described moving contact group comprises the embedded moving contact magnetic conductor 6 of movable contact block 5, movable contact block 5, be electrically connected with movable contact block 5 and for changing moving contact magnetic conductor 6 magnetic thus controlling the rotating permanent magnet 7 of permanent magnetism moving contact 4 and fixed contact 1 folding; Movable contact block 5 is fixed with and is positioned at the magnetic conduction radome 11 that arc control device 3 surround permanent magnetism moving contact 4 and fixed contact 1; A described rotating permanent magnet 7 neighboring part is near moving contact magnetic conductor 6, and remainder is surrounded by pole shoe 10; Pole shoe 10 two ends are corresponding with magnetic conduction radome 11 both sides.Described movable contact block 5 neighboring is connected to the arc control device 3 of fixed contact pedestal 9 neighboring composition sealing by seal 2.
Described moving contact magnetic conductor 6 one end is near permanent magnetism moving contact 4, and the other end stretches out movable contact block 5 near rotating permanent magnet 7.
embodiment 4
A kind of permanent magnetic drive circuit breaker, as shown in Figure 7, Figure 8, comprises moving contact group, stationary contact head group and arc control device 3, the fixed contact 1 being positioned at arc control device 3 that described stationary contact head group comprises fixed contact pedestal 9 and is fixedly connected with it; The permanent magnetism moving contact 4 being positioned at arc control device 3 that described moving contact group comprises the embedded moving contact magnetic conductor 6 of movable contact block 5, movable contact block 5, be electrically connected with movable contact block 5 and for changing moving contact magnetic conductor 6 magnetic thus controlling the movable permanent magnet body 8 of permanent magnetism moving contact 4 and fixed contact 1 folding; Movable contact block 5 is fixed with and is positioned at the magnetic conduction radome 11 that arc control device 3 surround permanent magnetism moving contact 4 and fixed contact 1; Described movable permanent magnet body 8 is made up of the permanent magnet that at least two connect through synonyms pole end, and every two adjacent distance between two poles of the same name equal the width of magnetic conduction radome 11.Described movable contact block 5 neighboring is connected to the arc control device 3 of fixed contact pedestal 9 neighboring composition sealing by seal 2.Described moving contact magnetic conductor 6 one end is near permanent magnetism moving contact 4, and the other end stretches out movable contact block 5 near movable permanent magnet body 8.
Claims (7)
1. a permanent magnetic drive circuit breaker, comprises moving contact group, stationary contact head group and arc control device, it is characterized in that: the fixed contact that described stationary contact head group comprises fixed contact pedestal and is fixedly connected with it; The permanent magnetism moving contact that described moving contact group comprises the embedded moving contact magnetic conductor of movable contact block, movable contact block, be electrically connected with movable contact block and for changing moving contact magnetic conductor magnetic thus controlling the driving permanent magnet of permanent magnetism moving contact and fixed contact folding; Described movable contact block neighboring is connected to the arc control device of fixed contact pedestal neighboring composition sealing by seal.
2. permanent magnetic drive circuit breaker according to claim 1, is characterized in that: be fixed with on movable contact block and be positioned at the magnetic conduction radome that arc control device surround permanent magnetism moving contact and fixed contact.
3. permanent magnetic drive circuit breaker according to claim 1 and 2, is characterized in that: described moving contact magnetic conductor one end is near permanent magnetism moving contact, and the other end stretches out movable contact block near driving permanent magnet.
4. permanent magnetic drive circuit breaker according to claim 3, is characterized in that: described driving permanent magnet is rotating permanent magnet.
5. permanent magnetic drive circuit breaker according to claim 4, is characterized in that: a described rotary permanent-magnet outer periphery part is near moving contact magnetic conductor, and remainder is surrounded by pole shoe; Pole shoe two ends are corresponding with magnetic conduction radome both sides.
6. permanent magnetic drive circuit breaker according to claim 3, is characterized in that: described driving permanent magnet is movable permanent magnet body.
7. permanent magnetic drive circuit breaker according to claim 6, is characterized in that: described movable permanent magnet body is made up of the permanent magnet that at least two connect through synonyms pole end, and every two adjacent distance between two poles of the same name equal the width of magnetic conduction radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864452.XU CN204257561U (en) | 2014-12-29 | 2014-12-29 | A kind of permanent magnetic drive circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864452.XU CN204257561U (en) | 2014-12-29 | 2014-12-29 | A kind of permanent magnetic drive circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204257561U true CN204257561U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420864452.XU Withdrawn - After Issue CN204257561U (en) | 2014-12-29 | 2014-12-29 | A kind of permanent magnetic drive circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204257561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485265A (en) * | 2014-12-29 | 2015-04-01 | 刁俊起 | Permanent magnet driving circuit breaker |
-
2014
- 2014-12-29 CN CN201420864452.XU patent/CN204257561U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485265A (en) * | 2014-12-29 | 2015-04-01 | 刁俊起 | Permanent magnet driving circuit breaker |
| CN104485265B (en) * | 2014-12-29 | 2017-08-25 | 刁俊起 | A kind of permanent magnetic drive breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150408 Effective date of abandoning: 20170825 |
|
| AV01 | Patent right actively abandoned |