CN204597464U - contactor protective device - Google Patents
contactor protective device Download PDFInfo
- Publication number
- CN204597464U CN204597464U CN201420805568.6U CN201420805568U CN204597464U CN 204597464 U CN204597464 U CN 204597464U CN 201420805568 U CN201420805568 U CN 201420805568U CN 204597464 U CN204597464 U CN 204597464U
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- contactor
- protective device
- protector
- power input
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Abstract
The utility model relates to a kind of contactor protective device, comprise power input unit and load unit, contactor is provided with between described power input unit and load unit, described protective device comprises contactor protective device and relay is connected with contactor, and described contactor protector, contactor are connected with control end; Described contactor is provided with signal lamp.After have employed said structure, contactor stick together phenomenon can not disconnect in time time, can carry out opening operation in time, saving resource by contactor protector, structure is simple, easy to operate.
Description
Technical field
The utility model relates to technical field of circuit control, especially relates to a kind of contactor protective device.
Background technology
Contactor is (English: Magnetic Contactor), to refer to utilize coil to flow through current induced magnetic field, make contact closure, to reach the electrical equipment of control load.Because fast shut-off can exchange with direct current major loop and the device with big current control circuit can be connected continually, so often apply to motor as control object, also can be used as controlling the electrical loads such as shop equipment, electric heater, machine-tool and various kinds electric power unit, and as remotely controlled plant.And contactor is in Long-Time Service process, easily make contact head to stick together phenomenon, when needs closing device, can not close, equipment operates always, causes waste, and needs to close total input power and carry out maintain and replace, inconvenient operation.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of contact head can the contactor protective device of arrestment work in time after the phenomenon that sticks together.
The technical scheme in the invention for solving the technical problem is: a kind of contactor protective device; comprise power input unit and load unit; contactor is provided with between described power input unit and load unit; described protective device comprises contactor protector and relay; described relay is connected with contactor, and described contactor protector, contactor are connected with control end.
Further, in order to make operating personnel can Timeliness coverage fault and on-call maintenance, described contactor is other be provided with signal lamp.
The beneficial effects of the utility model are: after have employed said structure, contactor stick together phenomenon can not disconnect in time time, can carry out opening operation in time, saving resource by contactor protector, structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail.
A kind of contactor protective device as shown in Figure 1, comprise power input unit and load unit, contactor is provided with between described power input unit and load unit, described protective device comprises contactor protector and relay, described relay is connected with contactor, and described contactor protector, contactor are connected with control end; Described contactor is other is provided with signal lamp.
Operation principle; first; the signal of contactor is closed in control end input; control end control contactor cuts out contactor protector simultaneously and starts working; when the contact head of contactor sticks together phenomenon time, contactor protector detects in circuit also there is electric current, outputs signal to relay and carries out power operation synchronous signal lamp and light; damaging appears in warning contactor, needs to keep in repair.
It is emphasized that: be only preferred embodiment of the present utility model above, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (2)
1. a contactor protective device; comprise power input unit and load unit; contactor is provided with between described power input unit and load unit; it is characterized in that; described protective device comprises contactor protector and relay; described relay is connected with contactor, and described contactor protector, contactor are connected with control end.
2. contactor protective device according to claim 1, is characterized in that, described contactor is other is provided with signal lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805568.6U CN204597464U (en) | 2014-12-19 | 2014-12-19 | contactor protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805568.6U CN204597464U (en) | 2014-12-19 | 2014-12-19 | contactor protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597464U true CN204597464U (en) | 2015-08-26 |
Family
ID=53933578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420805568.6U Active CN204597464U (en) | 2014-12-19 | 2014-12-19 | contactor protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204597464U (en) |
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2014
- 2014-12-19 CN CN201420805568.6U patent/CN204597464U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |