CN201985046U

CN201985046U - Low power consumption alternating current contactor

Info

Publication number: CN201985046U
Application number: CN201120082380XU
Authority: CN
Inventors: 江俊锋; 周雅云; 许明延; 张辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-20
Filing date: 2011-03-20
Publication date: 2011-09-21
Anticipated expiration: 2021-03-20

Abstract

The utility model belongs to the technical field of electrical switches and provides a low power consumption alternating current contactor which has the main characteristics that the contactor comprises a shell, a movable arm, a movable contact and a static contact, wherein a rack is arranged on the movable arm, a gear engaged with the rack on the movable arm is arranged on a motor shaft in the shell, a locating pin and a light transmission hole are arranged on the gear, a limiting rail is arranged at the lower end of the movable arm in the shell, a strong spring is arranged in the limiting rail, and a control circuit board is arranged in the shell. The low power consumption alternating current contactor has the advantages of low power consumption, no magnetic noise, long service life and the like.

Description

The low power consumption A.C. contactor

Technical field

The utility model belongs to the electric switch technical field, relates to contactor, is specifically related to a kind of low power consumption A.C. contactor.

Background technology

A.C. contactor is widely used in the electric equipment control field in the power transmission system as a kind of switch that utilizes electromagnetic attraction to make the frequent conducting of contact and cut off AC power.Existing A.C. contactor mainly comprises: support, swing arm, moving contact, pull-in winding, the iron core of its pull-in winding are " day " font silicon sheet core, and the control button of pull-in winding is normally closed button.This A.C. contactor coil at work is with a little all the time, and operating current is big, 80% above power consumption is arranged on magnetic hysteresis, eddy current and short-circuited conducting sleeve, and meritorious power consumption major part is converted into heat energy and loses, even phenomenons such as the coil of burning, contact loose contact are arranged; The magnetic that is in operation is made an uproar greatly, produces the noise pollution environment; When the A.C. contactor in the electromagnetic structure ran into the power supply network transient fault, pull-in winding was opened automatically because of overload, stopped the externally power supply of load, caused enterprise's tremendous economic loss.

The utility model content

The inventor finds that in the daily course of work existing A.C. contactor exists above-mentioned defective, improve through trial-production constantly, technical problem to be solved in the utility model provides that a kind of low power consumption, no magnetic are made an uproar, the low power consumption A.C. contactor of long service life.

For solving the problems of the technologies described above, technical solution adopted in the utility model is that the structure of this low power consumption A.C. contactor comprises shell, swing arm, moving contact, fixed contact, on swing arm, offer tooth bar, establish the gear that is meshed with tooth bar on the swing arm on the motor reel in the enclosure, on gear, establish alignment pin and pass unthreaded hole, the lower end of the swing arm Bit Track of limiting in the enclosure, in spacing track, establish brute spring, also establish a control circuit board in the enclosure, circuit board is connected with Motor Control, at two buttons that link to each other with circuit board of shell peripheral hardware.

In order to protect A.C. contactor, at the anti-lightning appliance controller of power end serial connection of circuit board.

The utility model low power consumption A.C. contactor adopts technique scheme to have following beneficial effect:

1. economize on electricity.Because only when break-make was changed, motor is electricity consumption in short-term, the gear alignment pin makes dynamic and static contact reliably closing and disconnection during operate as normal, and through on probation, economize on electricity can reach more than 99.8%;

2. do not generate heat.Himself temperature is consistent with ambient temperature because A.C. contactor in the not power consumption of when work, works long hours.

3. not having magnetic makes an uproar.Owing to removed silicon sheet core and coil, do not have magnetic in the course of the work and make an uproar, do not have magnetic and shake.

4. the life-span is long.Because A.C. contactor not power consumption when work is not generated heat, so be difficult for breaking down.

5. has anti-lightning protection function.Because the anti-lightning Protector for electric appliance of power end serial connection at circuit board; when power supply network generation transient fault; anti-lightning Protector for electric appliance can pass through (0-15 second) transient fault; the A.C. contactor that guarantees operation continues to the load power supply, stops the tremendous economic loss that brings to enterprise because of the electrical network transient fault.

Description of drawings

Fig. 1 represents the structural representation of the utility model low power consumption A.C. contactor;

Fig. 2 represents the utility model circuit principle structure schematic diagram.

Embodiment

Specify below in conjunction with the structure and the operation principle of accompanying drawing the utility model low power consumption A.C. contactor.

Referring to Fig. 1, the structure of the utility model low power consumption A.C. contactor comprises shell 1, swing arm 2, moving contact 3, fixed contact 4, on swing arm 2, offer tooth bar 11, establish the gear 6 that is meshed with tooth bar 11 on the swing arm 2 on 5 on the motor in shell 1, on gear 6, establish alignment pin 7 and pass unthreaded hole 8, the lower end of swing arm 2 Bit Track 10 of limiting in shell 1, in spacing track 10, establish brute spring 9, in shell 1, also establish a control circuit board 12, circuit board 12 and motor 5 control connections are at two button (not shown) that link to each other with circuit board of shell 1 peripheral hardware.In order to protect A.C. contactor, at the anti-lightning appliance controller of power end serial connection of circuit board 12.

Referring to Fig. 1, Fig. 2, the course of work of the utility model low power consumption A.C. contactor is described below:

Powered operation: press SB1, miniature cocurrent electromotor M just changes, gear driven swing arm on the motor shaft moves down along the swing arm rail, when dynamic and static contact closure, light-operated switch K8 receive D1 through passing the unthreaded hole emission light and work, cut off motor M power supply, it is quit work, and the gear alignment pin is eliminated the inertia of motor drives gear and is blocked gear, makes A.C. contactor can rely on the power load power supply, brute spring is eliminated swing arm inertia, makes dynamic and static contact more stable.

Operation has a power failure: press SB2, miniature cocurrent electromotor M counter-rotating, gear driven swing arm on the motor reel is along moving on the swing arm rail, dynamic and static contact is opened, and cuts off the power supply of power load, light-operated switch K9 receive D2 through passing the unthreaded hole emission light and work, cut off the power supply of motor M, it is stopped, and the gear alignment pin is eliminated the inertia of motor drives gear and is blocked gear, and A.C. contactor is disconnected reliably.

The utility model causes the low power consumption ac contactor contact to disconnect for preventing the electrical network lightning, will close contact K with time-delay appliance controller one group leader at this power supply live wire end connects, (live wire in secondary supply line, zero line) respectively adorns an insurance Fu, and with two full-wave rectification block input ZQ1, ZQ2 connects, rectification module ZQ1 output head anode is respectively by the long button SB1 that opens, optoelectronic switch GK1, insert GK1 respectively after output K switch 2 other ends are in parallel with SB1, the GK2 module input, the control power supply of forming two optical switches, the D1 in addition of access ZQ1 positive pole in parallel with SB1, the D2 luminescent system.SB2 with insert optoelectronic switch GK3, GK4 input again after K10 is in parallel, form 4GK input electronic control system.

The utility model full-wave rectification block ZQ2 output is made up of to motor M power supply bridge K3, K4, K6, K7 respectively, this rectification module input other end joins with K1, K5 in parallel, other end connecting to neutral line after K1, the K5 parallel connection is formed the controlled parallel circuit of this module ZQ2.

Photoelectric control switch output K1, K2, K3, K4, K5, K6, K7, K8, K9, K10 are inserted successively, can form to micromotor M just change, counter-rotating, the spacing control of photoelectricity.

It is as follows that the utility model secondary is controlled each microelectronic component job description:

Motor M is just being changeed operation (A.C. contactor closure): press the long button SB1 that opens, photoelectric controller GK1, the GK2 input gets electric work, output K1, K2, K3, the closed conducting of K4, motor gets the electric work of just changing a job, when the reliable closure of A.C. contactor dynamic/static contact, photoelectricity receiving key K8 receives D1 emission light and works through gear hole, by closed and disconnect, thus.GK1, GK2 output are all because of dead electricity disconnects, and motor quits work because of dead electricity.Alignment pin blocks gear, and then eliminates the dynamic/static contact shake.

The A.C. contactor opening operation: press SB2, GK3 and GK4 input get electric work, output K5, K6, K7, K10 are all closed, at this moment direct current machine power supply polarity is opposite, and motor M is sent out commentaries on classics, and the A.C. contactor contact is reliably opened, stop to the power load power supply, simultaneously, photoelectric controller K9 receives D2 emission light and disconnects, cut off photoelectric controller GK3, the GK4 working power, its output all disconnects, and motor stops because of dead electricity.

Claims

1. low power consumption A.C. contactor, comprise shell, swing arm, moving contact, fixed contact, it is characterized in that on swing arm, offering tooth bar, establish the gear that is meshed with tooth bar on the swing arm on the motor reel in the enclosure, on gear, establish alignment pin and pass unthreaded hole, in the enclosure the lower end of the swing arm Bit Track of limiting, in spacing track, establish brute spring, also establish a control circuit board in the enclosure, circuit board is connected with Motor Control, at two buttons that link to each other with circuit board of shell peripheral hardware.

2. low power consumption A.C. contactor as claimed in claim 1 is characterized in that the anti-lightning appliance controller of power end serial connection at circuit board.