CN202696568U

CN202696568U - Electronic time relay of electric motor

Info

Publication number: CN202696568U
Application number: CN 201220233664
Authority: CN
Inventors: 马云龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-23
Filing date: 2012-05-23
Publication date: 2013-01-23
Anticipated expiration: 2022-05-23

Abstract

An electronic time relay of an electric motor comprises a shell and an electronic circuit in the shell, wherein the electronic circuit comprises a power source module, a timing module, an output module and a trigger module; the power source module is communicated with the timing module; a phase-shift circuit (RC) of the power source module is connected with a photoelectric coupler IC1 of the trigger module; the photoelectric coupler IC1 of the trigger module is connected with a resistor R2 of the trigger module; the resistor R2 is connected with a second pin and a sixth pin of a photoelectric coupler IC2 of the timing module; a third pin of the photoelectric coupler IC2 is communicated with a solid-state relay SSR1 of the output module; and a fourth pin and an eighth pin of the photoelectric coupler IC2 are communicated with a solid-state relay SSR2. A microelectronic optical device and a power device are used for realizing electrical isolation and signal coupling between an input control loop and a load loop, so that the electronic time relay has the advantages of high action speed, broad range, high time-delay accuracy, convenience in regulation, long service life and strong anti-interference capability, can be controlled by a computer easily, and can work in adverse environment reliably.

Description

The electric locomotive electronic time relay

Technical field

The utility model relates to locomotive traction electrical equipment auxiliary field, specifically a kind of electric locomotive electronic time relay.

Background technology

The time relay is a kind of electric control device.It has control system (claim not only input circuit) and by the interactive relationship between the control system (but also claiming output loop).Usually be applied in the control circuit of automation, it is actually a kind of " automatic switch " that goes to control large electric current running with little electric current.So in circuit, play the effects such as automatic adjusting, safeguard protection, change-over circuit.

The time relay of use for electric locomotive equally also is the effects such as automatic adjusting, safeguard protection, change-over circuit that play in its Circuits System.Because the time relay that uses in the electric locomotive mostly has the contact, and contact and external environment be difficult to isolation, causes it to be difficult to adapt to for a long time normal operation under adverse circumstances.In the actual use of my section, what especially expose on the time relay take LWSJ as representative is very obvious.The statistics of 175 electric locomotive most common failures of my section is found, the appearance of LWSJ relay fault is very frequent, and the LWSJ fault can directly cause the locomotive with no pressure without stream, makes locomotive forfeiture tractive effort, can't continue the tractor-trailer train operation, have a strong impact on the normal transport order of railway.

The utility model content

Technical problem to be solved in the utility model provide a kind of applied widely, delay precision is high, easy to adjust, the life-span is long, antijamming capability is strong, can be in rugged environment the electric locomotive electronic time relay of reliably working.

Adopt following technical scheme for solving technical problem of the present utility model:

A kind of electric locomotive electronic time relay, comprise housing and be located at electronic circuit in the housing, described electronic circuit comprises: power module, time block, output module and trigger module, described power module is communicated with time block, phase-shift circuit RC in the described power module is connected with photoelectrical coupler IC1 in the trigger module, described photoelectrical coupler IC1 is connected with resistance R 2 in the trigger module, in described resistance R 2 and the described time block 2 pin of photoelectrical coupler IC2 with are connected pin and are connected, 3 pin of described photoelectrical coupler IC2 are communicated with solid-state relay SSR1 in the described output module, and 4 pin of described electric coupling IC2 and 8 pin are communicated with solid-state relay SSR2.

Described time block adopts 555 time-base circuit principles.

Power supply in the described power module is the DC power supply of 110V.

The control switch device that the utility model has used microelectric technique to make is realized electricity isolation and signal coupling between input control loop and the load circuit by microelectronics optical device and power spare.Owing to all adopt semiconductor device in input circuit and the load circuit, therefore do not have in the course of the work mechanical movement.Compare with electromagnetic relay, have quick action, scope is wide, delay precision is high, easy to adjust, life-span long, antijamming capability is realized computer control by force, easily, can be in rugged environment the characteristics such as reliably working.In recent years, the development speed of electronic relay is very fast, the terminal control interface, and numerical control device, abominable operational environment and explosion-proof occasion etc. have extensively adopted electronic relay.

Description of drawings

Fig. 1 is the utility model circuit theory diagrams.

Embodiment

Below in conjunction with accompanying drawing the utility model is further elaborated.

As shown in Figure 1, a kind of electric locomotive electronic time relay comprises housing and is located at electronic circuit in the housing that described electronic circuit comprises: power module 1, time block 2, output module 3 and trigger module 4 four modules.Power module 1 is communicated with time block 2.Wherein time block 2 adopts 555 time-base circuit principles.Phase-shift circuit RC in the power module 1 is connected with photoelectrical coupler IC1 in the trigger module 4, photoelectrical coupler IC1 is connected with resistance R 2 in the trigger module 4, in resistance R 2 and the time block 22 pin of photoelectrical coupler IC2 with are connected pin and are connected, 3 pin of photoelectrical coupler IC2 are communicated with solid-state relay SSR1 in the

output module

3, and 4 pin of electric coupling IC2 and 8 pin are communicated with solid-state relay SSR2 in the output module 3.

When the DC110V power connection, power module 1 is as the working power of this relay during use, and power module 1 is started working, and supply convertor is pulse-width modulation (PWM) principle.110V is on the photoelectrical coupler IC1 of phase-shift circuit RC in the trigger module 4, photoelectrical coupler IC1 conversion produces high level (about 12V) at R2, capacitor C 2 is by quick charge, and 2 pin of photoelectrical coupler IC2 are high level (putting 1) in this moment time block 2, photoelectrical coupler IC2 in the time block 2 overturns immediately, the 3 pin output low levels of photoelectrical coupler IC2, in resistance R 2 and the time block 22 pin of photoelectrical coupler IC2 with are connected pin and are connected, 3 pin of photoelectrical coupler IC2 are communicated with solid-state relay SSR1 in the

output module

3, and 4 pin of electric coupling IC2 and 8 pin are communicated with solid-state relay SSR2 in the output module 3.So solid-state relay SSR1 input 2 is connected with output 2, solid-state relay SSR2 input 1 is connected with output 2.LED2 in the output module 3, LED 3 lights; Supply convertor output+12V power supply is connected to the working power indicator light on the supply convertor, this lamp is bright during power work, and time block 2 carries out work after the energising, and time block 2 is 555 time-base circuit principles.Output module 3 is to adopt contactless solid-state relay (or PCMOS pipe).The time opening of relay is by presetting the end Determines.Solid-state relay SSR1 and solid-state relay SSR2 are output as low level in the output module 3 at this moment, signal of telecommunication indicator light LED2, and LED3 extinguishes.

The electric locomotive electronic time relay mode of connection is basic identical with mechanical type, unique different be the wiring of input stage: the DC power supply of a 110V need to be provided, and the while wiring of controlled stage need be noted positive losing side by the expression on the relay.

Claims

1. electric locomotive electronic time relay, comprise housing and be located at electronic circuit in the housing, it is characterized in that: described electronic circuit comprises power module (1), time block (2), output module (3) and trigger module (4), described power module (1) is communicated with time block (2), phase-shift circuit RC in the described power module (1) is connected with photoelectrical coupler IC1 in the trigger module (4), described photoelectrical coupler IC1 is connected with resistance R 2 in the trigger module (4), in described resistance R 2 and the described time block (2) 2 pin of photoelectrical coupler IC2 with are connected pin and are connected, 3 pin of described photoelectrical coupler IC2 are communicated with solid-state relay SSR1 in the described output module (3), and 4 pin of described electric coupling IC2 and 8 pin are communicated with solid-state relay SSR2.

2. electric locomotive electronic time relay according to claim 1 is characterized in that: described time block (2) employing 555 time-base circuit principles.

3. electric locomotive electronic time relay according to claim 1, it is characterized in that: the power supply in the described power module (1) is the DC power supply of 110V.