CN2269013Y - Automatic phase-off protector - Google Patents
Automatic phase-off protector Download PDFInfo
- Publication number
- CN2269013Y CN2269013Y CN 96220280 CN96220280U CN2269013Y CN 2269013 Y CN2269013 Y CN 2269013Y CN 96220280 CN96220280 CN 96220280 CN 96220280 U CN96220280 U CN 96220280U CN 2269013 Y CN2269013 Y CN 2269013Y
- Authority
- CN
- China
- Prior art keywords
- phase
- relay
- protector
- utility
- model
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an automatic phase-off protector, which is composed of three relays J1, J2 and J3, a bottom board and a push-and-pull handle, wherein, the three relays are installed on the bottom board; the push-and-pull handle is fixed on a movable contact piece of one of the three relay. The utility model does not use electronic elements, having low manufacturing cost. Because the phase voltage of a power supply is directly used as a control signal, the automatic phase-off protector has rapid reaction movement on phase off. In addition, the automatic phase-off protector has the advantages of simple structure, easy fabrication, easy maintenance, etc. The utility model not only can be used as the phase-off protection of electric appliances using three-phase electricity, but also can be used as the phase-off protection of the power utilization places of 220V three-phase lines, air conditioners, etc.
Description
The utility model relates to a kind of full-automatic protection electrical equipment when being used for the three phase mains phase failure.
At present; full-automatic phase failure protector of the prior art mostly is electronic control type greatly; the shortcoming of these phase failure protectors is: complex structure, cost of manufacture height, easy-maintaining not, and owing to all be to adopt the variation of electric current to be used as detection signal, thereby its movement response is all slow.
The purpose of this utility model is: a kind of electronic component, low, full-automatic phase failure protector for ease of maintenaince of cost of manufacture of not adopting is provided.
The utility model is to constitute like this: it is by three relay J 1, J2, J3 and base plate (1) and drawing handle (2) are formed, three relays are installed on the base plate (1), drawing handle (2) is fixed therein on the movable contact spring of a relay, one end of three relay magnetic coils links together and is connected with the ground wire of three phase mains, relay J 1, J2, one end of J3 fixed contact respectively with three phase mains in one be connected, relay J 1, J2, the other end of J3 fixed contact is respectively the output of three-phase electricity, the movable contact spring of relay J 1 is succeeded the other end of electrical equipment J2 magnetic coil, the movable contact spring of relay J 2 is succeeded the other end of electrical equipment J3 magnetic coil, and the movable contact spring of relay J 3 is succeeded the other end of electrical equipment J1 magnetic coil.During use, only need drawing handle (2) is pressed, three relays are adhesive work, and its output is exportable three-phase electricity, if at this moment as long as a phase phase shortage or section phase are arranged in the three-phase electricity of input, then the whole protecting device will cut off the power supply automatically and quit work; If when needing to cut off the electricity supply at work, only need drawing handle (2) is mentioned and can be cut off the electricity supply.
The utility model compared with prior art, owing to do not adopt electronic component, so cost of manufacture is cheap, and because the utility model directly adopts the power supply phase voltage as control signal, so very fast to the reaction of phase failure action, and the utility model also have simple in structure, make and easily, for ease of maintenaince wait advantage.The utility model not only can be used as the electrical equipment open phase protection that uses three-phase electricity, and can be used for the open phase protection in electricity consumption places such as three groups of circuits of 220V and air conditioner.
Accompanying drawing 1 is a schematic appearance of the present utility model;
Accompanying drawing 2 is circuit theory diagrams of the present utility model.
Embodiment of the present utility model: three relay J 1, J2, the relay that has only a normally opened contact that J3 can adopt on the market to be sold, base plate (1) and drawing handle (2) adopt insulating material to make, three relays are installed on the base plate (1), drawing handle (2) is fixed on the movable contact spring of relay J 2, one end of three relay magnetic coils is linked together and be connected with the ground wire of three phase mains, with relay J 1, J2, one end of J3 fixed contact respectively with three phase mains in one be connected, with relay J 1, J2, the other end of J3 fixed contact is respectively as the output of three-phase electricity, the movable contact spring of relay J 1 is succeeded the other end of electrical equipment J2 magnetic coil, the movable contact spring of relay J 2 succeeded the other end of electrical equipment J3 magnetic coil, the movable contact spring of relay J 3 is succeeded the other end of electrical equipment J1 magnetic coil.During use, it is may command and protection electrical appliance that the electrical appliance that uses is connected on three outputs.
Claims (1)
1; a kind of full-automatic phase failure protector; it is by three relay J 1; J2; J3 and base plate (1) and drawing handle (2) are formed; three relays are installed on the base plate (1); it is characterized in that: drawing handle (2) is fixed therein on the movable contact spring of a relay; one end of three relay magnetic coils links together and is connected with the ground wire of three phase mains; relay J 1; J2; one end of J3 fixed contact respectively with three phase mains in one be connected; relay J 1; J2; the other end of J3 fixed contact is respectively the output of three-phase electricity; the movable contact spring of relay J 1 is succeeded the other end of electrical equipment J2 magnetic coil; the movable contact spring of relay J 2 is succeeded the other end of electrical equipment J3 magnetic coil, and the movable contact spring of relay J 3 is succeeded the other end of electrical equipment J1 magnetic coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96220280 CN2269013Y (en) | 1996-08-29 | 1996-08-29 | Automatic phase-off protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96220280 CN2269013Y (en) | 1996-08-29 | 1996-08-29 | Automatic phase-off protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2269013Y true CN2269013Y (en) | 1997-11-26 |
Family
ID=33900638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96220280 Expired - Fee Related CN2269013Y (en) | 1996-08-29 | 1996-08-29 | Automatic phase-off protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2269013Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440271A (en) * | 2016-09-12 | 2017-02-22 | 广东美的暖通设备有限公司 | Air conditioning system and operation control method of air conditioning system |
-
1996
- 1996-08-29 CN CN 96220280 patent/CN2269013Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440271A (en) * | 2016-09-12 | 2017-02-22 | 广东美的暖通设备有限公司 | Air conditioning system and operation control method of air conditioning system |
| CN106440271B (en) * | 2016-09-12 | 2019-08-27 | 广东美的暖通设备有限公司 | The progress control method of air-conditioning system and air-conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |