CN208386133U

CN208386133U - A kind of Motor Control and protective switch with electronic switch function

Info

Publication number: CN208386133U
Application number: CN201820677806.8U
Authority: CN
Inventors: 胡晓峰
Original assignee: Wuxi Wing Duopuli Technology Co Ltd
Current assignee: Wuxi Wing Duopuli Technology Co Ltd
Priority date: 2018-05-08
Filing date: 2018-05-08
Publication date: 2019-01-15
Anticipated expiration: 2028-05-08

Abstract

The utility model discloses a kind of Motor Control and protective switch with electronic switch function, including processor, the processor is connected with the normally closed or normally opened relay of multiple groups, the power input of the processor is connected with metal-oxide-semiconductor, metal-oxide-semiconductor grid connection cut-off switch and connecting switchs, one end of the cut-off switch connects the grid of the metal-oxide-semiconductor, the collector of the other end connection first diode and the second diode, the base stage of first triode is connected to the processor, the collector of second diode connects with the connection that turns on, the base stage connected switch and be also connected with third transistor, the collector of the third transistor is connected to the processor；The utility model to control is powered on and is powered off in such a way that circuit carrys out analog mechanical switch, more safe and stable using electronic switch, the service life is long, greatly saves the material of script mechanical structure.

Description

A kind of Motor Control and protective switch with electronic switch function

Technical field

The utility model relates to motor switch technical field, in particular to a kind of Motor Control with electric function Switch.

Background technique

Existing motor is typically all to use mechanical switch to control opening or breaking for motor, although cheap, machine Tool structure access times are limited, have certain quality requirements to machinery, if practical middle buckle releaser or mechanical structure go wrong, Then shielding failure consequence is not serious in place for de- mouth failure or mechanical action.

Utility model content

In order to solve the problems, such as existing motor controling switch there are safety problem and access times are limited, this is practical It is novel that a kind of safety and stability and the electronic switch of long-life are provided, for the control and protection to motor.

In order to real above-mentioned purpose, technical solution provided by the utility model is: a kind of with electronic switch function Motor Control and protective switch, including processor, the processor are connected with the normally closed or normally opened relay of multiple groups, the place The power input of reason device is connected with MOS pipe, and metal-oxide-semiconductor grid connection cut-off switch and connecting switchs, the cut-off switch One end connect the grid of the metal-oxide-semiconductor, the other end connects the collector of first diode and the second diode, the described 1st The base stage of pole pipe is connected to the processor, and the collector of second diode connects with the connection that turns on, the connection Switch is also connected with the base stage of third transistor, and the collector of the third transistor is connected to the processor.

As further technical solution, described relay one end connects power supply, other end connecting triode, three pole The base stage of pipe is connected to the processor.

In the above scheme, it is preferred that the processor is single-chip microcontroller.

Further preferred scheme is additionally provided with voltage stabilizing chip between the metal-oxide-semiconductor and the single-chip microcontroller.

In the above scheme, it is preferred that the voltage stabilizing chip uses 78M05.

The beneficial effect of the utility model compared with the existing technology is: the utility model carrys out analog mechanical using circuit and opens The mode of pass is powered on and is powered off to control, and the practical number of mechanical structure originally is limited, has certain quality requirements to machinery, such as Fruit buckle releaser or mechanical structure in go wrong, and then shielding failure consequence is not serious in place for de- mouth failure or mechanical action, The utility model takes electronic switch that can evade mechanical this problem, more safe and stable, the service life is long, greatly saves The material of script mechanical structure.

Detailed description of the invention

Fig. 1 is the frame diagram of the utility model；

Fig. 2-4 is the circuit diagram of the utility model；

Specific embodiment

Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.

As shown in Figure 1, a kind of Motor Control and protective switch with electronic switch function, by single-chip microcontroller as processing Device carries out data processing and signal and receives and transmitting unit, wherein single-chip microcontroller can choose 51 series or STM8 series or its His single-chip microcontroller of model is all within the protection scope of the present utility model, and the power module of single-chip microcontroller is as shown in Fig. 2, power supply unit subpackage A transformer is included, alternating current 220V alternating current is entire electronics using direct current is become after full-bridge rectification chip after transformer Switch provides direct current, and one metal-oxide-semiconductor Q2 of concatenation is used to control the on-off of entire circuit in circuit, metal-oxide-semiconductor Q2's Grid connects cut-off switch interface J9, and interface J9 is upper to be connect with the collector of triode Q9 and Q3, the base stage of triode Q3 and The I/O mouth of single-chip microcontroller connects, and emitter ground connection, when such cut-off switch issues signal, single-chip microcontroller just will receive signal；Triode The base stage of Q9 is connect with switch interface J10 is connected, and the emitter ground connection of triode Q9 also connects in addition, connecting on switch interface J10 The base stage of a triode Q8 is connect, the collector of triode Q8 and the I/O mouth of single-chip microcontroller connect, when connecting switch sending signal, Single-chip microcontroller can also receive signal.

When normally powering on, alternating current is become direct current and powered for entire circuit by transformer and rectifier, at this point, The RC circuit charging of R21 and C11 composition can generate about several milliseconds of low level on the grid of P-channel metal-oxide-semiconductor Q2, this When metal-oxide-semiconductor Q2 be connected, by 13V power supply voltage stabilizing chip 78M05 namely after single-chip microcontroller power supply chip, monolithic at this time Machine obtain it is electric, single-chip microcontroller by the data being stored in single-chip microcontroller obtain then before whether be because failure power off, be not do Operation, otherwise single-chip microcontroller goes out to provide high level triode Q3 conducting in A5_ON and triode Q2 grid is dragged down, after guaranteeing several milliseconds Triode Q2 grid low level is maintained before charging complete, to complete power up.

If before faulty, artificial to force to press the key at J10 when powering on, metal-oxide-semiconductor Q2 grid passes through triode Q9 It drags down, single-chip microcontroller obtains electric and single-chip microcontroller and obtains KEY_RES_SIG signal, it is known that be to force to power on to ignore failure logging, in A5_ON High level triode Q3 conducting is provided out to drag down triode Q2 grid, guarantees to maintain three poles before the key pop-up at J10 Pipe Q2 grid low level, to complete power up.

In addition, motor, there are also protection location, including voltage protection and current protection, Current Voltage acquisition unit is electric current The collected three-phase voltage of mutual inductor is transmitted to single-chip microcontroller processing after operational amplifier is handled to provide current protection；Alternating current Pressure is transmitted to single-chip microcontroller after operational amplifier is handled after current with partial pressure to provide voltage protection, since the protection is not at this The protection scope of utility model, so just repeating no more in the present embodiment.

Go out to provide low level triode Q3 in A5_ON when protective condition, which is reached, to be needed to power off to disconnect triode Q2 grid is drawn high, and triode Q2 is disconnected, then completes to power off.

As shown in Figure 3 and Figure 4, powering on and powering off for the utility model is controlled by metal-oxide-semiconductor and transistor circuit, is passed through 5 relays come simulate script mechanical structure effect 08-05,98-95,41-42,41-44,51-52 five to external switch Amount.

The utility model is powered on and is powered off to control in such a way that circuit carrys out analog mechanical switch, mechanical knot originally The practical number of structure is limited, has certain quality requirements to machinery, if practical middle buckle releaser or mechanical structure go wrong, takes off mouth Then shielding failure consequence is not serious in place for failure or mechanical action, and the utility model takes electronic switch that can evade mechanical this Kind of problem, it is more safe and stable, the service life is long, greatly save the material of script mechanical structure.

The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.

Claims

1. a kind of Motor Control and protective switch with electronic switch function, including processor, it is characterised in that: the place Reason device is connected with the normally closed or normally opened relay of multiple groups, and the power input of the processor is connected with metal-oxide-semiconductor, the metal-oxide-semiconductor Grid connection cut-off switch and connecting switchs, and one end of the cut-off switch connects the grid of the metal-oxide-semiconductor, and the other end connects the The base stage of the collector of one diode and the second diode, the first triode is connected to the processor, second diode Collector connect with the connection that turns on, the switch of connecting is also connected with the base stage of third transistor, the three or three pole The collector of pipe is connected to the processor.

2. Motor Control according to claim 1 and protective switch, it is characterised in that: relay one end connection electricity The base stage in source, other end connecting triode, the triode is connected to the processor.

3. Motor Control according to claim 1 and protective switch, it is characterised in that: the processor is single-chip microcontroller.

4. Motor Control according to claim 3 and protective switch, it is characterised in that: the metal-oxide-semiconductor and the monolithic Voltage stabilizing chip is additionally provided between machine.

5. Motor Control according to claim 4 and protective switch, it is characterised in that: the voltage stabilizing chip uses 78M05。