CN206041858U

CN206041858U - Soft start safety control circuit

Info

Publication number: CN206041858U
Application number: CN201620455041.4U
Authority: CN
Inventors: 张善勇
Original assignee: Zhisheng Technology Guangzhou Co Ltd
Current assignee: Zhisheng Technology Guangzhou Co Ltd
Priority date: 2016-05-17
Filing date: 2016-05-17
Publication date: 2017-03-22
Anticipated expiration: 2026-05-17

Abstract

The utility model discloses a soft start safety control circuit, including being arranged in setting up at motor circuit and controlling its relay of opening and close, this safety control circuit still includes both hands control module and the electromagnetic switch who is used for the setting at the motor front end, both hands control module and electromagnetic switch all with the relay is connected, and the relay is the relay by the control of both hands control module. The utility model discloses a soft start safety control circuit, the sparkless produced when it was frequently opened and close at the relay, can effectively reduce the probability that electrical components damaged, both hands control module is adopted, operating personnel's safety can be ensured.

Description

A kind of soft start safety control circuit

Technical field

This utility model is related to circuit safety field, more particularly to a kind of soft start safety control circuit.

Background technology

In current high-voltage control circuit, general control mode makes electromagnetic contactor frequently open and close, and not only easily produces fire Flower, and fragile electromagnetic contactor；The operation of switch is typically carried out using one hand, and handss are while start machine, Another handss are likely to be at deathtrap, or some have been mounted with the machine of both hands control knob, due to two buttons not A button may be first withstood in the startup of energy Synchronization Control machine, individual operations personnel, only operated with handss, so as to lead to peace Full accident.

Utility model content

The purpose of this utility model is to provide a kind of soft start safety control circuit, and which is when relay is frequently opened and closed without fire Flower is produced, and can effectively reduce the probability of electric elements damage；Using control module, it can be ensured that the safety of operator.

For achieving the above object, the utility model discloses a kind of soft start safety control circuit, including for being arranged on In motor circuit, and control its keying relay；The safety control circuit also includes control module and for being arranged on motor The electromagnetic switch of front end, the control module and electromagnetic switch are connected with the relay, and relay is by control module control The relay of system.

Used as further improvement of the utility model, the control module includes that control chip, first switch and second are opened Close, the first switch and second switch are connected with the control chip, and control chip is connected with the relay.

Further improve as of the present utility model, the first switch, second switch are self-monitoring light eletric button.

Further improve as of the present utility model, the relay includes the first relay and the second relay, institute It is the relay for being respectively used to be connected to the U phase lines of motor and W phase lines to state the first relay and the second relay.

Further improve as of the present utility model, first relay and the second relay are contactless relay Device.

Further improve as of the present utility model, model AT-FM-10K of the control module.

Beneficial effect

Compared with prior art, soft start safety control circuit of the present utility model, which passes through in control module first Relay in switch and second switch co- controlling high-voltage motor circuit, so that realize the keying of high-tension circuit.First switch Self-monitoring light eletric button being with second switch, two handss of operator being needed while switching using one respectively, relay is Can close, and start motor, the handss of operator are located at deathtrap when preventing electric motor starting, it is ensured that the safety of operator； Relay is non-contact relay, even if continually open and close, can effectively reduce the several of electric elements damage Rate.

By description below and accompanying drawing is combined, this utility model will become more fully apparent, these accompanying drawings are used for explaining this The embodiment of utility model.

Description of the drawings

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is the circuit diagram that soft start safety control circuit of the present utility model is used in motor circuit；

Fig. 2 is the control module circuit diagram of soft start safety control circuit of the present utility model.

In figure, the 1, first relay；2nd, the second relay；3rd, control chip；4th, first switch；5th, second switch；6th, electricity Magnetic switch.

Specific embodiment

With reference now to Description of Drawings embodiment of the present utility model,.

Embodiment 1

Specific embodiment of the present utility model as shown in Fig. 1 to 2, a kind of soft start safety control circuit, which is arranged on In high-voltage motor circuit, two phase lines U of motor M1 and W are connected to AC220V voltages.Is connected in phase line U and phase line W One relay 1 and the second relay 2, the first relay 1 and the second relay 2 are non-contact relay, are used in Fig. 1 respectively SSR1 and SSR2 are represented.

First relay 1 and the second relay 2 are connected with control chip 3, model AT-FM-10K of control chip 3. Control chip 3 is also connected with first switch 4 and second switch 5, and first switch 4 and second switch 5 are self-monitoring light eletric button, Represented with STB1 and STB2 in Fig. 2 respectively.

Electromagnetic switch 6 is connected between first relay 1, the second relay 2 and motor M1.Electromagnetic switch 6 can be in electricity Machine M1 is protected to which when transshipping.

After power on circuitry, start electromagnetic switch 6, operator's both hands simultaneously by first switch 4 and second switch 5, Close which；Control chip 3 is to 2 sending signal of the first relay 1 and the second relay so as to close, so as to make motor M1 open It is dynamic.

As operator need two handss to use first switch 4 and second switch 5, the first relay 1 and second simultaneously Relay 2 can just close and start motor M1, and when can prevent motor M1 from starting, the handss of operator are located at deathtrap, it is ensured that behaviour Make the safety of personnel；First relay 1 and the second relay 2 are non-contact relay, even if continually open and close will not also produce Spark, can effectively reduce the probability of electric elements damage.

This utility model is described above in association with most preferred embodiment, but this utility model is not limited to the above and takes off The embodiment shown, and the various modifications carried out according to essence of the present utility model, equivalent combinations should be covered.

Claims

1. a kind of soft start safety control circuit, including for being arranged in motor circuit, and control the relay of its keying；Its It is characterised by, the safety control circuit also includes control module and the electromagnetic switch (6) for being arranged on motor front end, the control Molding block and electromagnetic switch (6) are connected with the relay, and relay is the relay controlled by control module.

2. a kind of soft start safety control circuit according to claim 1, it is characterised in that the control module includes control Coremaking piece (3), first switch (4) and second switch (5), first switch (4) and second switch (5) with the control core Piece (3) connects, and control chip (3) is connected with the relay.

3. a kind of soft start safety control circuit according to claim 2, it is characterised in that first switch (4), Two switches (5) are self-monitoring light eletric button.

4. a kind of soft start safety control circuit according to claim 1 or 2 or 3, it is characterised in that the relay bag The first relay (1) and the second relay (2) is included, the first relay (1) and the second relay (2) are to be respectively used to connection To the relay of the U phase lines and W phase lines of motor.

5. a kind of soft start safety control circuit according to claim 4, it is characterised in that the first relay (1) Non-contact relay is with the second relay (2).

6. a kind of soft start safety control circuit according to Claims 2 or 3, it is characterised in that control chip (3) Model AT-FM-10K.