CN106411055A

CN106411055A - Motor switch formed by small DC relay and light touch key

Info

Publication number: CN106411055A
Application number: CN201611066781.XA
Authority: CN
Inventors: 徐东旭; 徐东升; 时海建; 张润禄; 张英超; 徐东山; 牛华强
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-29
Filing date: 2016-11-29
Publication date: 2017-02-15

Abstract

The invention relates to a motor switch formed by an electronic circuit controlled by a small DC relay and a light touch key. A special low voltage direct current power supply is formed by a resistance capacitance step-down circuit, a rectifier bridge, and a filtering and voltage stabilizing circuit, the electronic circuit through which only weak current can pass controlled by the so-called 'light touch key' is used to drive the motion of the small DC relay, and the starting and closing processes of the motor are completed. The functions of starting, closing or inching of a three-phase motor are completed with adding one direct current relay.

Description

Miniature direct current relay and the motor switch of touch key composition

Technical field

The present invention relates to the motor switch that the electronic circuit that a kind of Miniature direct current relay and touch key control forms.

Background technology

The various motor of modern production, are usually used the keying of the switch control rule motor such as A.C. contactor, simply The keying directly carrying out motor using knife switch is also had to control.

Content of the invention

The purpose of the present invention is it is simply that provide the electronic switching circuit group that a kind of Miniature direct current relay and touch key control The motor switch becoming.

Realize the object of the invention technical measures, be special low with capacitance-resistance voltage reduction circuit, rectifier bridge and filter regulator circuit composition Pressure dc source, using the electronic circuit driving small-sized DC relay that can only be controlled by so-called " touch key " of weak current The action of device, completes the opening-closing process of motor.

Brief description：

Fig. 1 is independent start key and the electronic circuitry stopping, crawl multiplexing bond conjunction controls；

The on-off circuit figure that Fig. 2 is startup, stopping independently being controlled with crawl key；

Fig. 3 is Miniature direct current relay and the threephase motor on-off circuit figure of touch key composition；

The symbol of each in figure is unified mark and is described as follows：

C1 and R1 is decompression capacitor and resistance；C2 is filter capacitor；D1～D5 is rectifying tube；DW is voltage-stabiliser tube；STR be two-way can Control silicon；T1 is controllable silicon；FD is luminous tube；BG1～BG5 is transistor；AN1～AN3 is touch key；JD and JD1, JD2 are Relay coil；R2～R12 is resistance；C3～C6 is electric capacity；～it is AC power.

Specific embodiment：

It is further described the specific embodiment of the present invention below in conjunction with accompanying drawing：

Embodiment one：Independent start key and the electronic circuit stopping, crawl multiplexing bond conjunction controls

In the circuit in fig. 1, after connecting motor power, special low-voltage dc power supply is started working；Press AN1, controllable silicon T1 turns on, relay JD adhesive, and operating opened by motor；Crawl AN2, T1 are because being ended, the JD when unclamping AN2 by AN2 short circuit Release, motor stall.

The AN2 of this example doubles as stopping and crawl key：Press and stop（Be substantially equal to the motor running time increased AN2 from Press the moment unclamped）, repeatedly press the effect that can play crawl.

Embodiment two：Start, stop and crawl key electronic circuit independently

Fig. 2 is to replace silicon controlled in Fig. 1 with the BG4 that the bistable circuit being formed by assemblies such as BG2 and BG3 drives to act on, and uses AN1 and AN2 united control bistable circuit, controls the keying of motor, and independently carries out the crawl of motor with AN3, both Action mutually no impact association.

Embodiment three：Miniature direct current relay and the threephase motor on-off circuit of touch key composition

This example button of with AN2 doubling as crawl and stopping same with embodiment one：Press and stop, crawl can be repeated, Except for the difference that increase a relay, just complete threephase motor open and close or crawl function（One phase of threephase motor All the time connect or switched on power in advance using single switch）.

Claims

1. a kind of Miniature direct current relay and touch key composition motor switch it is characterised in that：By special low-pressure direct The electronic circuit that stream power supply, touch key control and Miniature direct current relay are formed.

2. Miniature direct current relay according to claim 1 and touch key composition motor switch it is characterised in that： Special low-voltage dc power supply is made up of capacitance-resistance voltage reduction circuit, rectifier bridge and filter regulator circuit.

3. Miniature direct current relay according to claim 1 and touch key composition motor switch it is characterised in that： The electronic circuit that touch key controls is by independent start key and the ghyristor circuit institute group stopping, crawl compound keys jointly control Become.

4. Miniature direct current relay according to claim 1 and touch key composition motor switch it is characterised in that： The electronic circuit that touch key controls drives BG4 replacement controllable silicon to control electricity respectively by the bistable circuit being manipulated by AN1 and AN2 The keying of motivation；Independently carry out the crawl of motor with AN3.

5. the motor switch of Miniature direct current relay according to claim 1 and touch key composition, can control three Phase motor open and close with crawl it is characterised in that：Increase a DC relay, the one of motor mutually directly connects power supply.