CN204596646U - The contact system of automatic transfer switching electric appliance - Google Patents
The contact system of automatic transfer switching electric appliance Download PDFInfo
- Publication number
- CN204596646U CN204596646U CN201520249813.4U CN201520249813U CN204596646U CN 204596646 U CN204596646 U CN 204596646U CN 201520249813 U CN201520249813 U CN 201520249813U CN 204596646 U CN204596646 U CN 204596646U
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- CN
- China
- Prior art keywords
- moving contact
- bus
- connecting rod
- housing
- arc
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of contact system of automatic transfer switching electric appliance, and comprise housing, feature is: install main power source bus in the left side of described housing, install stand-by power supply bus, installation load bus below stand-by power supply bus on the right side of housing; In the middle of described housing, install rocking arm; the both sides of rocking arm bottom are rotationally connected respectively by bearing pin and first connecting rod and second connecting rod; first connecting rod and second connecting rod are rotationally connected with the moving contact of the left and right sides respectively; the lower end of moving contact is connected with housing into rotation, corresponding main power source bus and stand-by power supply bus are distinguished in the upper end of moving contact.Arc-extinguish chamber is wrapped up outside described moving contact.The lower end of described moving contact is respectively in circular arc-shaped end, and two arc surfaces that this circular arc-shaped end and load bus are formed match.Bringing onto load switching capability of the present utility model is strong, and arc extinction speed is fast.
Description
Technical field
The utility model relates to a kind of contact system of automatic transfer switching electric appliance, belongs to transfer switching equipment technical field.
Background technology
In low-voltage distribution system, automatic transfer switching electric appliance has become an indispensable important component part.When power failure, one or several load circuit can be converted to stand-by power supply automatically from trouble power, not power-off when ensureing that important load works.At present, the subject matter that automatic transfer switching electric appliance exists is: the problem of the fast not and secure context that uses arc extinction speed to bring more slowly of the switch speed between trouble power and stand-by power supply.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of contact system of automatic transfer switching electric appliance, and bringing onto load switching capability is strong, and arc extinction speed is fast.
According to the technical scheme that the utility model provides, a contact system for automatic transfer switching electric appliance, comprise housing, feature is: install main power source bus in the left side of described housing, stand-by power supply bus is installed on the right side of housing, installation load bus below stand-by power supply bus; In the middle of described housing, install rocking arm; the both sides of rocking arm bottom are rotationally connected respectively by bearing pin and first connecting rod and second connecting rod; first connecting rod and second connecting rod are rotationally connected with the moving contact of the left and right sides respectively; the lower end of moving contact is connected with housing into rotation, corresponding main power source bus and stand-by power supply bus are distinguished in the upper end of moving contact.
Further, outside described moving contact, arc-extinguish chamber is wrapped up.
Further, the lower end of described moving contact is respectively in circular arc-shaped end, and two arc surfaces that this circular arc-shaped end and load bus are formed match.
The contact system of automatic transfer switching electric appliance described in the utility model is independently, and component universality is strong, easy to maintenance; Active and standby power source bus is in different arc control device, and arc extinction speed is fast, and bringing onto load switching capability is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in Figure 1: the contact system of described automatic transfer switching electric appliance comprises main power source bus 1, arc-extinguish chamber 2, rocking arm 3, moving contact 4, stand-by power supply bus 5, load bus 6, housing 7, first connecting rod 8, second connecting rod 9 etc.
As shown in Figure 1, the utility model comprises housing 7, installs main power source bus 1, install stand-by power supply bus 5, installation load bus 6 below stand-by power supply bus 5 on the right side of housing 7 in the left side of housing 7; In the middle of described housing 7, install rocking arm 3; both sides of rocking arm 3 bottom are rotationally connected respectively by bearing pin and first connecting rod 8 and second connecting rod 9; first connecting rod 8 and second connecting rod 9 are rotationally connected with the moving contact 4 of the left and right sides respectively; lower end and the housing 7 of moving contact 6 are rotationally connected, corresponding main power source bus 1 and stand-by power supply bus 5 are distinguished in the upper end of moving contact 4.
Outside described moving contact 4, wrap up arc-extinguish chamber 2, form independently arc control device.
The lower end of described moving contact 4 is respectively in circular arc-shaped end, and two arc surfaces that this circular arc-shaped end and load bus 6 are formed match.
The course of work of the present utility model: when rocking arm 3 turns left, the upper end of the moving contact 4 on the left side contacts with main power source bus 1, and lower end arc surface rotates in the arc surface of load bus 6, and the moving contact 4 on the right is away from stand-by power supply bus 5; Contrary to rocking arm 3 turns right, the upper end of the moving contact 4 on the right contacts with stand-by power supply bus 5, and lower end arc surface rotates in the arc surface of load bus 6, and the moving contact 4 on the left side is away from main power source bus 1.
The contact system of automatic transfer switching electric appliance described in the utility model has two-way inlet wire and a road outlet, and two-way inlet wire is divided into main power source bus and stand-by power supply bus, and a road outlet is called load bus, and these three groups of buses constitute a contact system; Three or four contact systems add that switching mechanism, electric operating system, control system constitute an automatic transfer switching electric appliance.This contact system is all independently, and component universality is strong, easy to maintenance; Active and standby power source bus is in different arc control device, and arc extinction speed is fast, and bringing onto load switching capability is strong.
Claims (3)
1. the contact system of an automatic transfer switching electric appliance, comprise housing (7), it is characterized in that: in the left side of described housing (7), main power source bus (1) is installed, stand-by power supply bus (5) is installed, at stand-by power supply bus (5) below installation load bus (6) on housing (7) right side; Install rocking arm (3) in the middle of the described housing (7); the both sides of rocking arm (3) bottom are rotationally connected respectively by bearing pin and first connecting rod (8) and second connecting rod (9); first connecting rod (8) and second connecting rod (9) are rotationally connected with the moving contact (4) of the left and right sides respectively; lower end and the housing (7) of moving contact (6) are rotationally connected, corresponding main power source bus (1) and stand-by power supply bus (5) are distinguished in the upper end of moving contact (4).
2. the contact system of automatic transfer switching electric appliance as claimed in claim 1, is characterized in that: at described moving contact (4) outside parcel arc-extinguish chamber (2).
3. the contact system of automatic transfer switching electric appliance as claimed in claim 1, is characterized in that: the lower end of described moving contact (4) is respectively in circular arc-shaped end, and two arc surfaces that this circular arc-shaped end and load bus (6) are formed match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520249813.4U CN204596646U (en) | 2015-04-22 | 2015-04-22 | The contact system of automatic transfer switching electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520249813.4U CN204596646U (en) | 2015-04-22 | 2015-04-22 | The contact system of automatic transfer switching electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596646U true CN204596646U (en) | 2015-08-26 |
Family
ID=53932773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520249813.4U Expired - Fee Related CN204596646U (en) | 2015-04-22 | 2015-04-22 | The contact system of automatic transfer switching electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596646U (en) |
-
2015
- 2015-04-22 CN CN201520249813.4U patent/CN204596646U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |