CN102122593A - Moving contact device for circuit breaker - Google Patents
Moving contact device for circuit breaker Download PDFInfo
- Publication number
- CN102122593A CN102122593A CN2010100037987A CN201010003798A CN102122593A CN 102122593 A CN102122593 A CN 102122593A CN 2010100037987 A CN2010100037987 A CN 2010100037987A CN 201010003798 A CN201010003798 A CN 201010003798A CN 102122593 A CN102122593 A CN 102122593A
- Authority
- CN
- China
- Prior art keywords
- spring
- bridge
- rotating shaft
- circuit breaker
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Breakers (AREA)
- Fuses (AREA)
Abstract
The invention discloses a moving contact device for a circuit breaker, consisting of a contact bridge, a rotation shaft and four springs, wherein the rotation shaft is provided with a radial through hole; one end of the contact bridge passes through the radial through hole; the four springs are respectively arranged on two end faces of the rotation shaft; four axial grooves are arranged on the outer side wall of the rotation shaft; any one groove is provided with a pin; and the two ends of any one pin are respectively connected with one end of one spring. Two troughs are respectively arranged in the two end faces of the rotation shaft in parallel and each spring is arranged in one trough. The heat between the springs and the contact bridge is insulated by the rotation shaft; the spring force is not influenced by the temperature of the contact bridge so that the spring force is stable; the springs act on the contact bridge through the pins; and the pins press on the contact bridge and have large stressed areas so that the abrasion during the movement is small and the service life of the product is prolonged.
Description
Technical field:
The present invention relates to electricity field, relate in particular to low-voltage circuit breaker, particularly a kind of trigger device that is used for circuit breaker.
Background technology:
In the prior art, moving contact system in the breaker with double breaks and plastic case is directly hung over by two extension springs and touches on the bridge, though assembling is simple, but have very big hidden danger: when product under maximum rated current during operate as normal, touch temperature on the bridge about 120 ℃, because abutting against, touches on the bridge by spring, so spring can reduce at the high-temperature condition down spring, when elastic force reduces, contact pressure also can reduce, thereby the temperature rise of touching bridge is further raise, form vicious circle, burn cisco unity malfunction until circuit breaker.At spring with touch and be provided with thermal insulation layer between bridge, elastic force is not touched the bridge Temperature Influence in the part-structure, but spring exerts pressure by being riveted on the connecting rod that touches on the bridge, concentrates because connecting rod and axle are stressed, so serious wear, and there is considerable influence in life-span of product.
Summary of the invention:
The object of the present invention is to provide a kind of trigger device that is used for circuit breaker, the described this trigger device that is used for circuit breaker to solve in the prior art breaker with double breaks and plastic case the moving contact system with touch that bridging connects that mode is unreasonable, circuit breaker short technical problem in useful life.
This trigger device that is used for circuit breaker of the present invention constitutes by touching bridge, rotating shaft and spring, wherein, described rotating shaft is provided with radial direction through hole, the described bridge that touches passes described radial direction through hole, the number of described spring is four, spring is separately positioned on two end faces of rotating shaft, the lateral wall of rotating shaft is provided with four grooves, any one described groove all is parallel to the axial of rotating shaft, be provided with a pin in any one groove, the two ends of any one described pin are connected with an end of a described spring separately.
Further, be arranged with two grooves respectively in parallel in two end faces of described rotating shaft, described spring is arranged in the described groove separately.
Operation principle of the present invention is: spring and touch between bridge heat insulationly by rotating shaft, and spring force is not touched bridge temperature effect, and spring force is stable; Spring acts on by pin and touches bridge, and pin is pressed in and touches on the bridge, and lifting surface area is big, and the wearing and tearing in the motion process are very little, greatly improved the life-span of product.
The present invention and prior art are compared, and its effect is actively with tangible.The present invention is provided with rotating shaft in the trigger device of circuit breaker, will touch in the radial direction through hole that bridge is located in rotating shaft, and spring is arranged on the end of rotating shaft, spring by pin with touch bridge and compress, with spring with touch bridge and separate, spring force is not touched bridge temperature effect by rotating shaft, and spring force is stable; Simultaneously, pin directly is pressed in and touches on the bridge, and lifting surface area is big, and the wearing and tearing in the motion process are little, improved the life-span of product.
Description of drawings:
Fig. 1 is a kind of structural representation that is used for the trigger device of circuit breaker of the present invention.
Embodiment:
Embodiment 1:
As shown in Figure 1, a kind of trigger device that is used for circuit breaker of the present invention, by touching bridge 1, rotating shaft 2 and spring 3 constitute, wherein, described rotating shaft 2 is provided with radial direction through hole, a described end that touches bridge 1 passes described radial direction through hole, the number of described spring 3 is four, spring 3 is separately positioned on two end faces of rotating shaft 2, the lateral wall of rotating shaft 2 is provided with four grooves, any one described groove all is parallel to the axial of rotating shaft 2, is provided with a pin 4 in any one groove, and the two ends of any one described pin 4 are connected with an end of a described spring 3 separately.
Further, be arranged with two grooves respectively in parallel in two end faces of described rotating shaft 2, described spring 3 is arranged in the described groove separately.
The course of work of present embodiment is: spring 3 and to touch 1 on bridge heat insulation by rotating shaft 2, and spring 3 power are not touched bridge 1 temperature effect, and spring 3 power are stable; Spring 3 acts on by pin 4 and touches bridge 1, and pin 4 is pressed in and touches on the bridge 1, and lifting surface area is big, and the wearing and tearing in the motion process are very little, greatly improved the life-span of product.
Further, touch two grooves are set on the bridge 1, cooperate with pin 4 positions.
Claims (3)
1. trigger device that is used for circuit breaker, constitute by touching bridge, rotating shaft and spring, it is characterized in that: described rotating shaft is provided with radial direction through hole, the described bridge that touches passes described radial direction through hole, the number of described spring is four, spring is separately positioned on two end faces of rotating shaft, the lateral wall of rotating shaft is provided with four grooves, any one described groove all is parallel to the axial of rotating shaft, be provided with a pin in any one groove, the two ends of any one described pin are connected with an end of a described spring separately.
2. a kind of trigger device that is used for circuit breaker as claimed in claim 1 is characterized in that: be arranged with two grooves respectively in parallel in two end faces of described rotating shaft, described spring is arranged in the described groove separately.
3. a kind of trigger device that is used for circuit breaker as claimed in claim 1 is characterized in that: described spring acts on by pin and touches on the bridge, and pin is pressed in and touches on the bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100037987A CN102122593A (en) | 2010-01-11 | 2010-01-11 | Moving contact device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100037987A CN102122593A (en) | 2010-01-11 | 2010-01-11 | Moving contact device for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102122593A true CN102122593A (en) | 2011-07-13 |
Family
ID=44251118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100037987A Pending CN102122593A (en) | 2010-01-11 | 2010-01-11 | Moving contact device for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102122593A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5313180A (en) * | 1992-03-13 | 1994-05-17 | Merlin Gerin | Molded case circuit breaker contact |
| CN1388547A (en) * | 2001-05-28 | 2003-01-01 | 富士电机株式会社 | Moulded box circuit breaker |
| CN2899084Y (en) * | 2006-01-25 | 2007-05-09 | 大全集团有限公司 | Spin-dle seizing mechanism of circuit breaker |
| CN101114556A (en) * | 2007-04-29 | 2008-01-30 | 上海电器科学研究所（集团）有限公司 | Circuit breaker rotating dual-breakpoint contact system and spring protection structure |
| CN201608134U (en) * | 2010-01-11 | 2010-10-13 | 上海良信电器股份有限公司 | Moving contact device used for circuit breaker |
-
2010
- 2010-01-11 CN CN2010100037987A patent/CN102122593A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5313180A (en) * | 1992-03-13 | 1994-05-17 | Merlin Gerin | Molded case circuit breaker contact |
| CN1388547A (en) * | 2001-05-28 | 2003-01-01 | 富士电机株式会社 | Moulded box circuit breaker |
| CN2899084Y (en) * | 2006-01-25 | 2007-05-09 | 大全集团有限公司 | Spin-dle seizing mechanism of circuit breaker |
| CN101114556A (en) * | 2007-04-29 | 2008-01-30 | 上海电器科学研究所（集团）有限公司 | Circuit breaker rotating dual-breakpoint contact system and spring protection structure |
| CN201608134U (en) * | 2010-01-11 | 2010-10-13 | 上海良信电器股份有限公司 | Moving contact device used for circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104217897A (en) | Spring-type power failure restoration temperature control switch capable of controlling two kinds of circuits | |
| CN201608134U (en) | Moving contact device used for circuit breaker | |
| CN204130875U (en) | A kind of slide contact type safety transmission device | |
| CN102122593A (en) | Moving contact device for circuit breaker | |
| CN204067192U (en) | The spring-piece type power-off restoration temperature detect switch (TDS) of two kinds of circuit can be controlled | |
| CN204067187U (en) | The spring-piece type power-off restoration temperature detect switch (TDS) of multi-load circuit can be controlled | |
| CN204067188U (en) | The power-off restoration temperature detect switch (TDS) of multi-load circuit can be controlled | |
| CN203151084U (en) | Electrical protection circuit for electromagnetic switch | |
| CN204348533U (en) | A kind of dynamic/static contact | |
| CN103065852A (en) | Novel double-line forcefully-breaking rocker switch | |
| CN204067193U (en) | The power-off restoration temperature detect switch (TDS) of two kinds of load circuits can be controlled | |
| CN204407197U (en) | A kind of diverter switch moving contact group | |
| CN204289121U (en) | A kind of diverter switch big current moving contact group | |
| CN204289124U (en) | The contact system of automatic change-over | |
| CN202275768U (en) | Forced disconnection rocker switch | |
| CN204464680U (en) | A kind of bearing shell formula conduction clutch | |
| CN206401223U (en) | It is a kind of to rotate moving contact and the switch using the rotation moving contact | |
| CN208469577U (en) | A kind of motor-driven carrier automatic charge device | |
| CN103050314A (en) | Rocker switch forcibly disconnected by rotating button cover | |
| CN203330243U (en) | Compact type bowed roller bearing seat of double-roller type temper mill | |
| CN202275765U (en) | Safe and reliable forcedly-disconnected rocker switch | |
| CN202601432U (en) | Heavy-load clapping touch switch capable of avoiding contact oxidation and abrasion | |
| CN204268807U (en) | A kind of two forced shutdown compression-type temperature controller | |
| CN202405455U (en) | Elastic unit contact body | |
| CN201315552Y (en) | Control circuit for press-down contracting brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110713 |