CN218274340U - Contact system of dual-power automatic transfer switch - Google Patents
Contact system of dual-power automatic transfer switch Download PDFInfo
- Publication number
- CN218274340U CN218274340U CN202222408246.5U CN202222408246U CN218274340U CN 218274340 U CN218274340 U CN 218274340U CN 202222408246 U CN202222408246 U CN 202222408246U CN 218274340 U CN218274340 U CN 218274340U
- Authority
- CN
- China
- Prior art keywords
- contact
- plate
- static contact
- static
- piece
- 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.)
- Active
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a dual supply automatic transfer switch's contact system, including the multiunit switch module of assembling each other, the switch module includes the casing, rotates the contact frame that sets up in the casing, with contact frame linkage complex moving contact, advance the contact plate, set up two static contact pieces, common contact plate, setting the static contact piece commonly used who serves in contact plate one commonly used, reserve contact plate, set up the reserve static contact piece in reserve contact plate one end commonly used, two static contact pieces, static contact piece commonly used, reserve static contact piece be rectangular array distribution in the casing, the casing in correspond two static contact pieces, static contact piece commonly used, reserve static contact piece punishment do not be provided with an explosion chamber, the explosion chamber in be provided with the magnetic blow-out subassembly respectively, the magnetic blow-out subassembly including setting up fixed plate in the explosion chamber, set up the magnet in the fixed plate. The utility model has the advantages of simple structure, stable performance are reliable, the assembly is convenient, the arc extinguishing is effectual.
Description
Technical Field
The utility model relates to a dual supply automatic transfer switch, concretely relates to dual supply automatic transfer switch's contact system.
Background
At present, many industries and departments have very high requirements on the reliability of power supply, and in order to ensure the continuity of power supply, a dual-power automatic transfer switch is adopted for supplying power to an electric appliance in many important occasions. As an essential device for switching electric energy, the technical performance requirements are also higher and higher. The dual-power transfer switch is mainly divided into a PC-level dual-power automatic transfer switch and a CB-level dual-power automatic transfer switch. The PC level dual-power automatic transfer switch adopts a high isolation switch as an actuating mechanism, can be switched on and carried but cannot break short-circuit current, and can still keep power supply continuity when a load is overloaded. The CB-level dual-power automatic transfer switch adopts a circuit breaker as an actuating mechanism, is provided with an over-current release, and has an overload protection function on electric equipment and cables on a load side. It can connect, carry and break short circuit current, and can disconnect load when overload or short circuit occurs to the load. However, the contact system of the existing PC-level dual-power automatic transfer switch is unreasonable in structural design, and the arc extinguishing effect of the contact system is poor, so that the breaking capacity of the dual-power automatic transfer switch is low, and the contact system of the dual-power automatic transfer switch also has the defects of complex structure, unreliable performance and inconvenient assembly.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance are reliable, the assembly is convenient, the effectual dual supply automatic transfer switch's of arc extinguishing contact system.
In order to realize the above-mentioned purpose, the utility model discloses a dual supply automatic transfer switch's contact system, including the multiunit switch module of assembling each other, switch module include the casing, rotate the contact frame that sets up in the casing, with contact frame linkage complex moving contact, advance the contact plate, set up two static contact pieces, the common contact plate of contact plate one end commonly used, set up at one of contact plate commonly used one the normal contact, reserve contact plate, set up the reserve static contact plate of contact plate one end commonly used, two static contact pieces commonly used, reserve static contact piece be the rectangular array and distribute in the casing, the casing in correspond two static contact pieces, static contact piece commonly used, reserve static contact piece punishment do not be provided with an explosion chamber, the explosion chamber in be provided with the magnetic blow-out subassembly respectively, the magnetic blow-out subassembly including setting up fixed plate in the explosion chamber, set up the magnet in the fixed plate.
The beneficial effect of above-mentioned structure is: two static contact, the static contact commonly used, reserve static contact punishment of this contact system do not are provided with an explosion chamber, and are provided with the magnetism in the explosion chamber and blow the subassembly, and the magnetism blows the effect that the subassembly can play the magnetism and blow the arc extinguishing, and electric arc can enter into the explosion chamber fast to be favorable to strengthening this arc extinguishing system's arc extinguishing effect. Therefore, the contact system of the dual-power automatic transfer switch has the advantages of simple structure, stable and reliable performance, convenience and rapidness in assembly and good arc extinguishing effect.
In particular, exhaust holes are respectively arranged at one side of the shell corresponding to each arc extinguish chamber. The exhaust hole can release the pressure in the shell, so that the arc can be ensured to enter the arc extinguishing chamber quickly, and the arc extinguishing effect of the contact system is improved.
Particularly, the moving contact comprises a clamping plate arranged in the contact head frame, two moving contact pieces arranged on the clamping plate, supports arranged on the two moving contact pieces and a spring piece arranged between the support and one of the moving contact pieces, wherein two contact spaces matched with the two static contact pieces, the common static contact piece and the standby static contact piece are respectively formed at two ends of the two moving contact pieces. A spring piece is arranged between the support and the movable contact pieces, the spring piece can increase the contact pressure of the two movable contact pieces, and the contact reliability is higher, so that the working reliability of the contact system is improved.
Particularly, cardboard both ends have an picture peg respectively, the contact headstock on be provided with picture peg matched with jack, the picture peg on be provided with the card hole, the jack in be provided with the fixture block, the picture peg alternate in the jack, and the fixture block is in the card hole, and constitutes the joint cooperation of cardboard and contact headstock. The clamping plate and the contact frame are connected in a clamping matching mode, so that the clamping plate and the contact frame can be assembled conveniently, and the assembly efficiency of the contact system can be improved.
Drawings
Fig. 1 is an internal structure diagram of the embodiment of the present invention.
Fig. 2 is an assembly view of the moving contact and the contact holder according to the embodiment of the present invention.
Fig. 3 is a sectional structure diagram of the moving contact and the contact holder according to the embodiment of the present invention.
Fig. 4 is a perspective view of the moving contact according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1-4, the embodiment of the present invention is a contact system of dual power automatic transfer switch, including the multiunit switch module 10 of assembling each other, switch module 10 include casing 11, rotate the contact frame 12 that sets up in casing 11, with contact frame 12 linkage complex moving contact 13, advance contact plate 14, set up two static contact pieces 141, common contact plate 15, set up common static contact piece 151, reserve contact plate 16, the reserve static contact piece 161 of setting on one end at reserve contact plate 16 that advance contact plate 14 one of one end, two static contact pieces 141, common static contact piece 151, reserve static contact piece 161 be rectangular array distribution in casing 10, casing 10 in correspond two static contact pieces 141, common static contact piece 151, reserve static contact piece 161 punishment and be provided with an explosion chamber 17 respectively, explosion chamber 17 in be provided with magnetic blow-down subassembly 18 respectively, magnetic blow-down subassembly 18 including setting up fixed plate 181 in explosion chamber 17, set up magnet 182 in fixed plate 181. And exhaust holes 111 are respectively arranged at one side of the shell 11 corresponding to each arc extinguish chamber 17. The exhaust hole can release the pressure in the shell, so that the arc can be ensured to enter the arc extinguishing chamber quickly, and the arc extinguishing effect of the contact system is improved.
As shown in fig. 2 to 4, the movable contact 13 includes a card board 131 disposed in the contact frame 12, two movable contacts 132 disposed on the card board 131, a bracket 133 disposed on the two movable contacts 132, and a spring plate 143 disposed between the bracket 133 and one of the movable contacts 132, and two stationary contacts 141, a common stationary contact 151, and a contact space 130 for matching the spare stationary contact 161 are respectively formed at two ends of the two movable contacts 132. A spring piece is arranged between the support and the movable contact pieces, the spring piece can increase the contact pressure of the two movable contact pieces, and the contact reliability is higher, so that the working reliability of the contact system is improved. Two ends of the clamping plate 131 are respectively provided with an inserting plate 1311, the contact frame 12 is provided with an inserting hole 121 matched with the inserting plate 1311, the inserting plate 1311 is provided with a clamping hole 1312, a clamping block 122 is arranged in the inserting hole 121, the inserting plate 1311 penetrates through the inserting hole 121, the clamping block 122 is clamped in the clamping hole 1312, and clamping matching of the clamping plate 131 and the contact frame 12 is formed. The clamping plate and the contact frame are connected in a clamping matching mode, so that the clamping plate and the contact frame are convenient to assemble, and the assembly efficiency of the contact system is improved.
Two static contact, the static contact commonly used, reserve static contact punishment of this contact system do not are provided with an explosion chamber, and are provided with the magnetism in the explosion chamber and blow the subassembly, and the magnetism blows the effect that the subassembly can play magnetism and blow out the arc, and electric arc can enter into in the explosion chamber fast to be favorable to strengthening this arc extinguishing system's arc extinguishing effect. Therefore, the contact system of the dual-power automatic transfer switch has the advantages of simple structure, stable and reliable performance, convenience and rapidness in assembly and good arc extinguishing effect.
Claims (4)
1. The utility model provides a dual supply automatic transfer switch's contact system, includes the multiunit switch subassembly of assembling each other, its characterized in that: the switch component comprises a shell, a contact frame, a moving contact, a contact inlet plate, two static contact pieces, a common contact plate, a common static contact piece, a standby contact plate and a standby static contact piece, wherein the contact frame is rotatably arranged in the shell, the moving contact is in linkage fit with the contact frame, the two static contact pieces are arranged on one end of the contact inlet plate, the common contact plate is arranged on one end of the common contact plate, the standby contact plate is arranged on one end of the standby contact plate, the two static contact pieces, the common static contact piece and the standby static contact piece are distributed in the shell in a rectangular array mode, an arc extinguish chamber is arranged in the shell in a position corresponding to the two static contact pieces, the common static contact piece and the standby static contact piece respectively, a magnetic blow-off component is arranged in the arc extinguish chamber respectively, and the magnetic blow-off component comprises a fixed plate and a magnet which are arranged in the fixed plate.
2. The contact system of a dual power automatic transfer switch of claim 1, wherein: and exhaust holes are respectively arranged in the shell corresponding to one side of each arc extinguish chamber.
3. The contact system of the dual power automatic transfer switch of claim 1 or 2, wherein: the movable contact comprises a clamping plate arranged in a contact head frame, two movable contacts arranged on the clamping plate, supports arranged on the two movable contacts, and a spring piece arranged between the support and one of the movable contacts, wherein two contact spaces matched with two static contacts, a common static contact and a standby static contact are formed at two ends of the two movable contacts respectively.
4. The contact system of the dual power automatic transfer switch of claim 3, wherein: the cardboard both ends have an picture peg respectively, the contact frame on be provided with picture peg matched with jack, the picture peg on be provided with the card hole, the jack in be provided with the fixture block, the picture peg alternate in the jack, and the fixture block is in the card hole, and constitute the cardboard and contact the joint cooperation of headstock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222408246.5U CN218274340U (en) | 2022-09-09 | 2022-09-09 | Contact system of dual-power automatic transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222408246.5U CN218274340U (en) | 2022-09-09 | 2022-09-09 | Contact system of dual-power automatic transfer switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218274340U true CN218274340U (en) | 2023-01-10 |
Family
ID=84713602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222408246.5U Active CN218274340U (en) | 2022-09-09 | 2022-09-09 | Contact system of dual-power automatic transfer switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218274340U (en) |
-
2022
- 2022-09-09 CN CN202222408246.5U patent/CN218274340U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100517534C (en) | Contact system capable of automatically change-over switching electric appliance | |
| CA2359789A1 (en) | Compact fused disconnect switch | |
| CN218274340U (en) | Contact system of dual-power automatic transfer switch | |
| CN110829395A (en) | Pluggable modular AC/DC power surge protector structure | |
| CN110164724B (en) | Automatic change-over switch electric appliance | |
| CN216015257U (en) | Low-voltage intelligent circuit breaker | |
| CN214588674U (en) | Residual current operated circuit breaker of multimode electricity-taking | |
| CN209880509U (en) | Circuit breaker with quick push-in connection and anti-live-hot plug-pull mechanism | |
| CN2917026Y (en) | Wireless electric connector | |
| CN217114275U (en) | High-breaking small circuit breaker | |
| CN108666164B (en) | Rotary electrical switch contact system and rotary electrical switch | |
| CN213184180U (en) | Universal circuit breaker moving contact assembly | |
| CN214477050U (en) | Contact system of change-over switch | |
| CN218241754U (en) | Contact system of dual-power automatic transfer switch | |
| CN212967580U (en) | Long-life universal circuit breaker moving contact assembly | |
| CN220796632U (en) | High-reliability miniature circuit breaker | |
| CN217061987U (en) | Contact structure | |
| CN216624176U (en) | Circuit breaker | |
| CN216624154U (en) | Circuit breaker | |
| CN219457394U (en) | Conductive structure applied to power transfer switch | |
| CN211150480U (en) | Contact arc extinguishing device of circuit breaker | |
| CN219534456U (en) | High breaking arc extinguishing chamber | |
| CN215008118U (en) | Small-sized circuit breaker | |
| CN219267534U (en) | Neutral point isolating switch | |
| CN211907313U (en) | Fuse type isolating switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |