CN104681329A - Contact system of dual power change-over switch - Google Patents
Contact system of dual power change-over switch Download PDFInfo
- Publication number
- CN104681329A CN104681329A CN201510092812.8A CN201510092812A CN104681329A CN 104681329 A CN104681329 A CN 104681329A CN 201510092812 A CN201510092812 A CN 201510092812A CN 104681329 A CN104681329 A CN 104681329A
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- China
- Prior art keywords
- contact
- outlet
- moving
- movable contact
- moving contact
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/54—Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch
- H01H21/58—Change-over switches without stable intermediate position
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a contact system of a dual power change-over switch. The contact system comprises a moving contact base, two moving contact pieces, two reeds, a rotating shaft, two inlet terminals and an outlet terminal, wherein the moving contact base is fixed on and penetrates through the rotating shaft; annular moving contact frames are formed on the two sides of the moving contact base; the two moving contact pieces are oppositely sleeved by the moving contact base between the two moving contact frames; each reed is arranged between a moving contact piece and a moving contact frame on the moving contact piece side; the moving contact piece is in Y-shaped towards an outer ring and forms one inlet moving contact and two outlet moving contacts; one side of the reed is connected with the moving contact frame, and the other end of the reed is propped against the outer sides of three moving contacts of the moving contact piece; the two inlet terminals are respectively arranged on the two sides of the inlet moving contact; inlet fixed contacts corresponding to the inlet moving contacts are formed on the two inlet terminals; the outlet terminal is arranged between the two outlet moving contacts; an outlet fixed contact corresponding to the outlet moving contact is arranged on the outlet terminal. The contact system has a simple structure, is not easy to cause misconnection, and can prevent the parallel operation of two different power supplies.
Description
Technical field
The present invention relates to a kind of contact system, especially a kind of contact system of dual-power transfer switch.
Background technology
Double power supply automatic transfer switch to be used in electric power system, when main electricity breaks down, trouble power can being avoided to power to the load, reliably selecting again qualified power supply to drop into normal operation, to ensure that power supply is uninterrupted.The place of general use outbalance, such as hospital, airport, harbour, all rely on double power supply automatic transfer switch to power to provide continuous print.
The double power supply automatic transfer switch of common current domestic use is bikini automatic switching control equipment the most widely, this wiring is two road power supplys, the using and the reserved, for subsequent use each other, combined by two contactors or circuit breaker or load-break switch, generally electrical interlock and mechanical interlocking is all established, in case two power sources in parallel between two Switch main bodies.Any road under normal circumstances in the power supply of Ke You bis-road powers, and another road is for subsequent use; When normal use power failure has a power failure, this automatic change-over automatically by load transition to another Power supply, the three kinds: first contactor type can be divided into according to its various combination and operation principle, it is combined by two contactors, the one being the earliest, the device circuit of this combination is simple, low price, but its poor reliability, the long-term live line work of functional contact device coil, power consumption is large, this combination of the fewer and feweri employing of current designer; The second is CB level product, and it is combined by two air circuit+controllers, and have mechanical interlocking and electrical interlock, and protection switch and diverter switch are combined, existing defencive function, has handoff functionality again, and system is simple and reliable; The third PC level product, PC level product is generally encapsulated in a complete housing, combined by two load-break switchs superpositions and controller, there is mechanical interlocking and electrical interlock, as can be seen from above three kinds of modes, in traditional double transfer switch, there are two groups of moving contacts, be realized by machinery and electrical interlock, prevent from running without power sources in parallel.The state that unsuccessfully there will be two different electrical power parallel runnings when interlocking causes load equipment scaling loss.
Summary of the invention
For above-mentioned reasons, the object of the present invention is to provide a kind of structure simple, the contact system of easy to operate dual-power transfer switch.
For achieving the above object, the present invention adopts a kind of contact system of dual-power transfer switch, comprise movable contact block, movable contact spring, reed, rotating shaft, input terminal, outlet terminal, movable contact block is fixedly set in rotating shaft, movable contact block both sides form the action contact frame of annular, two panels movable contact spring is enclosed within the movable contact block between two action contact frames relatively, two panels reed is separately positioned between the action contact frame of two panels movable contact spring and respective side, input terminal and outlet terminal are separately positioned on the both sides of movable contact spring, described movable contact spring is that Y type forms three moving contacts towards outer ring, three moving contacts are respectively an inlet wire moving contact of one end and two outlet moving contacts of the other end, reed side is connected on action contact frame, the other end withstands on outside three moving contacts of movable contact spring, two input terminals are separately positioned on the both sides of inlet wire moving contact, on two input terminals, corresponding inlet wire moving contact forms inlet wire fixed contact, outlet terminal is arranged between two outlet moving contacts, on outlet terminal, corresponding outlet moving contact forms outlet fixed contact.
It is one section of square shaft that the present invention is set to described movable contact block further between two action contact frames, the square groove suitable with the square shaft of movable contact block is formed centrally in described movable contact spring, the opening of square groove is arranged between two outlet moving contacts, and reed also forms the reed trough identical with square groove.
The present invention is set to described square shaft at the opening of square groove further while form the arc surface identical with both sides action contact frame.
The present invention is set to described two inlet wire fixed contacts further and input terminal is mutually vertically opposite extends to inlet wire moving contact both sides, to be that 135 ° of angles are oblique extend between two outlet moving contacts for outlet fixed contact and outlet terminal, and the distance between the thickness of inlet wire fixed contact and outlet fixed contact and two movable contact springs is adaptive.
The present invention is set to be formed centrally square opening in described movable contact block further, and the cross section of rotating shaft is square, and rotating shaft is through in the square opening of movable contact block.
The inside edge that the present invention is set to described moving contact further forms cambered surface, and the lateral surface edge of described inlet wire fixed contact and outlet fixed contact is inclined-plane.
The invention has the beneficial effects as follows that two input terminals are arranged on the side of movable contact block, outlet terminal is arranged on the opposite side of movable contact block, and the mode of connection of the upper entering and lower leaving that low-voltage electrical apparatus can be adopted to commonly use, misconnection is less likely to occur; Contact adopts knife-switch structure, moving contact connects with the inlet wire fixed contact on the input terminal being connected primary, spare power supply respectively by rotating, an inlet wire moving contact switches between two input terminals, the same time can only connect an input terminal, effectively can prevent two different electrical power parallel runnings; Two outlet moving contacts, when inlet wire moving contact is connected with any one inlet wire fixed contact, all can have an outlet moving contact to be connected with outlet fixed contact; The chien shih inlet wire moving contact that the opening of the square groove of movable contact spring is arranged on two outlet moving contacts is identical to the conductor distance of two outlet moving contacts, and can preserve value identical electrical property; The cambered surface edge aspect moving contact of moving contact and the connection of fixed contact.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the specific embodiment of the invention.
Fig. 2 is the end view after the specific embodiment of the invention removes terminal.
Fig. 3 is the schematic diagram of movable contact spring in the specific embodiment of the invention.
Fig. 4 is the schematic diagram of movable contact block in the specific embodiment of the invention.
Fig. 5 is the generalized section of the specific embodiment of the invention in twin-power switch.
Embodiment
As Figure 1-Figure 5, specific embodiments of the invention are contact systems of a kind of dual-power transfer switch, comprise movable contact block 1, two panels movable contact spring 2, two panels reed 3, rotating shaft 6, two input terminals 4, outlet terminal 5, square opening 14 is formed centrally in movable contact block 1, rotating shaft 6 cross section is square, rotating shaft 6 is through in the square opening 14 of movable contact block 1, movable contact block 1 both sides form the action contact frame 11 of annular, movable contact block 1 is one section of square shaft 12 between two action contact frames 11, the square groove 21 suitable with the square shaft 12 of movable contact block 1 is formed centrally in movable contact spring 2, two panels movable contact spring 2 is enclosed within the square shaft 12 between two action contact frames 11 in pairs, reed 3 also forms the reed trough identical with square groove 21, two panels reed 3 is separately positioned between the action contact frame 11 of two panels movable contact spring 2 and respective side, movable contact spring 2 is that Y type forms three moving contacts towards outer ring, the inside edge of three moving contacts forms cambered surface 22, three moving contacts are respectively an inlet wire moving contact 23 of one end and two outlet moving contacts 24 of the other end, the opening of the square groove 21 of movable contact spring 2 is arranged between two outlet moving contacts 24, the square shaft 12 of movable contact block 1 at the opening of square groove 21 while form the arc surface 13 identical with both sides action contact frame 11, reed 3 side is connected on action contact frame 11, the other end withstands on three moving contacts (23 of movable contact spring 2, 24) outside, two input terminals 4 are separately positioned on the both sides of inlet wire moving contact 23, on two input terminals 4, corresponding inlet wire moving contact 23 forms inlet wire fixed contact 41, two inlet wire fixed contacts 41 are mutually vertical with input terminal 4 and relatively extend to inlet wire moving contact 23 both sides, outlet terminal 5 is arranged between two outlet moving contacts 24, on outlet terminal 5, corresponding outlet moving contact 24 forms outlet fixed contact 51, outlet fixed contact 51 and outlet terminal 5 are oblique in 135 ° of angles to be extended between two outlet moving contacts 24, distance between the thickness of inlet wire fixed contact 41 and outlet fixed contact 51 and two movable contact springs 2 is adaptive, the both sides of the edge of inlet wire fixed contact 41 and outlet fixed contact 51 are inclined-plane, moving contact makes moving contact be stuck in the both sides at fixed contact center by the cambered surface at edge and the inclined-plane at fixed contact edge just, contact area is large, ensure electric conductivity.
Claims (6)
1. the contact system of a dual-power transfer switch, comprise movable contact block, movable contact spring, reed, rotating shaft, input terminal, outlet terminal, movable contact block is fixedly set in rotating shaft, movable contact block both sides form the action contact frame of annular, two panels movable contact spring is enclosed within the movable contact block between two action contact frames relatively, two panels reed is separately positioned between the action contact frame of two panels movable contact spring and respective side, input terminal and outlet terminal are separately positioned on the both sides of movable contact spring, it is characterized in that: described movable contact spring is that Y type forms three moving contacts towards outer ring, three moving contacts are respectively an inlet wire moving contact of one end and two outlet moving contacts of the other end, reed side is connected on action contact frame, the other end withstands on outside three moving contacts of movable contact spring, two input terminals are separately positioned on the both sides of inlet wire moving contact, on two input terminals, corresponding inlet wire moving contact forms inlet wire fixed contact, outlet terminal is arranged between two outlet moving contacts, on outlet terminal, corresponding outlet moving contact forms outlet fixed contact.
2. the contact system of dual-power transfer switch according to claim 1, it is characterized in that: described movable contact block is one section of square shaft between two action contact frames, the square groove suitable with the square shaft of movable contact block is formed centrally in described movable contact spring, the opening of square groove is arranged between two outlet moving contacts, and reed also forms the reed trough identical with square groove.
3. the contact system of dual-power transfer switch according to claim 2, is characterized in that: described square shaft forms the arc surface identical with both sides action contact frame at the opening of square groove.
4. the contact system of the dual-power transfer switch according to claim 1,2 or 3, it is characterized in that: described two inlet wire fixed contacts and input terminal are mutually vertically opposite extends to inlet wire moving contact both sides, to be that 135 ° of angles are oblique extend between two outlet moving contacts for outlet fixed contact and outlet terminal, and the distance between the thickness of inlet wire fixed contact and outlet fixed contact and two movable contact springs is adaptive.
5. the contact system of the dual-power transfer switch according to claim 1,2 or 3, is characterized in that: be formed centrally square opening in described movable contact block, and the cross section of rotating shaft is square, and rotating shaft is through in the square opening of movable contact block.
6. the contact system of the dual-power transfer switch according to claim 1,2 or 3, is characterized in that: the inside edge of described moving contact forms cambered surface, and the lateral surface edge of described inlet wire fixed contact and outlet fixed contact is inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510092812.8A CN104681329A (en) | 2015-02-27 | 2015-02-27 | Contact system of dual power change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510092812.8A CN104681329A (en) | 2015-02-27 | 2015-02-27 | Contact system of dual power change-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104681329A true CN104681329A (en) | 2015-06-03 |
Family
ID=53316241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510092812.8A Pending CN104681329A (en) | 2015-02-27 | 2015-02-27 | Contact system of dual power change-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104681329A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140060A (en) * | 2015-09-15 | 2015-12-09 | 江苏省电力公司苏州供电公司 | Low-voltage tri-modal switching apparatus |
| CN108922803A (en) * | 2018-09-06 | 2018-11-30 | 厦门尤伯电气有限公司 | A kind of phase-change switch structure |
| CN109273293A (en) * | 2018-12-12 | 2019-01-25 | 沈阳斯沃电器有限公司 | A kind of trigger device for the conversion of two-way power supply |
| EP4246546A1 (en) * | 2022-03-17 | 2023-09-20 | Schneider Electric Industries SAS | Automatic transfer switch and contact system for automatic transfer switch |
| EP4258305A1 (en) * | 2022-04-08 | 2023-10-11 | Schneider Electric Industries SAS | Switch system with bypass contact |
-
2015
- 2015-02-27 CN CN201510092812.8A patent/CN104681329A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140060A (en) * | 2015-09-15 | 2015-12-09 | 江苏省电力公司苏州供电公司 | Low-voltage tri-modal switching apparatus |
| CN105140060B (en) * | 2015-09-15 | 2017-07-07 | 江苏省电力公司苏州供电公司 | The mode of low pressure three turns cutting apparatus |
| CN108922803A (en) * | 2018-09-06 | 2018-11-30 | 厦门尤伯电气有限公司 | A kind of phase-change switch structure |
| CN108922803B (en) * | 2018-09-06 | 2023-12-08 | 福建尤伯科技有限公司 | Phase change switch structure |
| CN109273293A (en) * | 2018-12-12 | 2019-01-25 | 沈阳斯沃电器有限公司 | A kind of trigger device for the conversion of two-way power supply |
| EP4246546A1 (en) * | 2022-03-17 | 2023-09-20 | Schneider Electric Industries SAS | Automatic transfer switch and contact system for automatic transfer switch |
| EP4258305A1 (en) * | 2022-04-08 | 2023-10-11 | Schneider Electric Industries SAS | Switch system with bypass contact |
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Application publication date: 20150603 |
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| WD01 | Invention patent application deemed withdrawn after publication |