CN2083656U

CN2083656U - Brake electronic energy-saving coil

Info

Publication number: CN2083656U
Application number: CN 90222870
Authority: CN
Inventors: 齐延国
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-28
Filing date: 1990-10-28
Publication date: 1991-08-28

Abstract

The utility model relates to a brake electronic energy saving coil which is composed of a rectification circuit, a normally open contact, a normally closed contact, a direct current coil, etc. The brake electronic energy saving coil is characterized in that a movable iron core is attracted to be closed by magnetic force generated by the direct current coil. The normally open contact arranged on a circuit is disconnected, and the normally closed contact is connected through the closing action of the movable iron core. The brake electronic energy saving coil supplies electricity for partial windings of an electrical magnet coil through a half-wave rectification circuit, or the brake electronic energy saving coil supplies electricity for the electrical magnet coil through the induce voltage of a transformer secondary winding by a full-wave rectification circuit, therefore, the movable iron core is attracted and is closed, and power consumption is reduced. The utility model has the advantages of simple structure, small volume, long service life without noises. When the utility model is used for replacing an alternating current coil, the structure of an original brake does not need to be changed.

Description

Brake electronic energy-saving coil

The utility model relates to a kind of break electronics energy-saving coil.

At present, mostly also adopt AC coil on the break electromagnet,, therefore produce bigger noise because there is alternating current zero crossing in Alternating Current Power Supply.Sound iron core pole-face is wearing and tearing easily also, and the sound iron core is adjusted improper or because dust when intercepting, also can and cause coil burnout, reliability is relatively poor.Simultaneously, remain on attracting state for keeping iron core, coil needs all the time by very big electric current, consumed power.

China's utility model patent discloses a kind of electromagnet saver, and application number is 87208500.Its technical solution is on moving iron core the pull bar that can swing to be housed, one V-shaped groove is arranged on the pull bar, pull bar is helped pull a cart outward, the hole of dress steel ball in having on helping pull a cart, be with one outside helping pull a cart and make the dial sleeve that slides on it, the internal diameter right-hand member of dial sleeve is bigger than left end, and it is gradient, one shift fork is housed on axle, in the groove of the slide block of shift fork lower end outside dial sleeve, the upper end is connected with little electromagnet, and connects with electric pull bar by pull bar, and a normally-closed contact and normally opened contact are arranged in the electrical switch, such scheme is behind electromagnetic actuation, make the electromagnet outage by a cover pull bar driving mechanism, by little electromagnet replacement work, make iron core remain on attracting state, reach the purpose of economize on electricity with this.This scheme adopts mechanical transmission, the structure more complicated, and volume is bigger, can not solve noise problem simultaneously.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple in structure, noise free, the break electronics energy-saving coil of saving power.

The purpose of this utility model is achieved in that the break electronics energy-saving coil that comprises electromagnet coil Jc, its special way is to be connected with one to two rectification circuit between power supply and electromagnet coil Jc, wherein power supply can with an input end (a of two rectification circuits, b) or two input end (a, b), (a, c) be connected, the output terminal of rectification circuit all links to each other with electromagnet coil Jc, on an above-mentioned rectification circuit, can be provided with and to become the normally-closed contact of full wave rectifier into one way rectifier, electromagnet coil has tap simultaneously, the part winding and the normally opened contact of electromagnet coil, current-limiting resistance, the rectification circuit series connection constitutes the one way rectifier electric circuit, make electromagnet keep attracting state, energy efficient thus.Between power supply and two rectification circuits, can be connected with transformer, the elementary winding of transformer links to each other with power supply, it also is connected with the input end of a rectification circuit simultaneously, between elementary winding and rectification circuit input end, be serially connected with the normally closed switch of this current supply circuit break-make of control, the transformer secondary output winding then is connected with the input end of another rectification circuit, and the output terminal of two rectification circuits then links to each other with electromagnet coil.

The utility model becomes Ac by rectification circuit and is direct current, not only can eliminate the back drop that electromagnet produces, reduce the pole-face wearing and tearing, also can reduce to adjust improper or intercept and cause coil burnout by dust because of dynamic and static iron core gap, thereby improve coil working life, increase the reliability of break.After the moving iron core adhesive of electromagnet, the utility model then utilizes the adhesive action of moving iron core, the normally-closed contact or the normally closed switch that are located on the circuit are disconnected, the normally opened contact closure, power to electromagnet part winding by half-wave rectifying circuit, perhaps power to electromagnet coil through full-wave rectifying circuit, be in attracting state, reduce power consumption to keep moving iron core by transformer secondary output winding induced voltage.

The utlity model has following advantage: simple in structure, volume is little, easy for installation, replace AC coil of the prior art with this electronics energy-saving coil, need not change former brake structural, easy to use.The Alternating Current Power Supply of the utility model change simultaneously is direct current supply, can abate the noise, and reduces pole-face and weares and teares, and improves the working life of coil, increases the reliability of break.Also can reduce power consumption at work.

Fig. 1 is most preferred embodiment circuit theory diagrams of the present utility model.

Fig. 2 is another embodiment's of the utility model circuit theory diagrams.

Be described in further detail below in conjunction with accompanying drawing:

As shown in Figure 1, bridge rectifier is by diode D ₁, D ₂, D ₃, D ₄Constitute, its input end (a, c) is connected with power supply, and output terminal is connected with electromagnet coil Jc, at diode D ₃, D ₄Or at D ₁, D ₂Between be serially connected with normally-closed contact J ₁Electromagnet coil is provided with tap, and tap is through lead and current-limiting resistance R, normally opened contact J ₂, rectification circuit output end is connected, and constitutes the electronics energy-saving coil thus.The working procedure of this circuit is: after connecting ac power supply, electric current is through behind the full-wave rectifying circuit, Ac is become direct current send into electromagnet coil Jc, produce magnetic force and will move the iron core adhesive, break work, the interlocking normally-closed contact that meanwhile moving iron core will be serially connected in the rectification circuit disconnects, the normally opened contact adhesive that is connected in series with the part winding, electric current makes the moving iron core of electromagnet still remain on attracting state to part winding power supply after one way rectifier, realizes the purpose of economizing on electricity with this.

As shown in Figure 2, two bridge rectifiers are by diode D ₁, D ₂, D ₃, D ₄, D ₅, D ₆Constitute, wherein diode D ₁, D ₂Be public bridge circuit, the output terminal of bridge rectifier is connected with electromagnet coil Jc, input end a, c and a, b respectively with the elementary winding B of power transformer ₁With secondary windings B ₂Be connected, between primary winding and rectification circuit input end, be serially connected with normally closed switch K.Its working procedure is to connect ac power supply, electric current through primary winding, normally closed switch with by diode D ₁, D ₂, D ₅, D ₆The rectification circuit that constitutes is to electromagnet coil, and electromagnet produces magnetic force will move the iron core adhesive, break work.In moving iron core adhesive, normally closed switch is disconnected, owing to have induced voltage to produce on the transformer secondary output winding, and via diode D ₁, D ₂, D ₃, D ₄The rectification circuit that constitutes is powered to electromagnet coil, makes iron core remain on attracting state, reaches the purpose of economize on electricity.

Claims

1, break electronics energy-saving coil, it comprises electromagnet coil Jc, it is characterized in that between power supply and electromagnet coil J, being connected with one to two rectification circuit, wherein power supply can be connected with the input end (a, b) of two rectification circuits or two input ends (a, b), (a, c), and the output terminal of rectification circuit all links to each other with electromagnet coil Jc.

2, break electronics energy-saving coil according to claim 1, it is characterized in that on a rectification circuit, can being provided with and to become the normally-closed contact of full wave rectifier into one way rectifier, electromagnet coil has tap simultaneously, the part winding of electromagnet coil is connected with normally opened contact, rectification circuit and is constituted the one way rectifier electric circuit, makes electromagnet keep attracting state.

3, break electronics energy-saving coil according to claim 1, it is characterized in that between power supply and two rectification circuits, can being connected with transformer, the elementary winding of transformer links to each other with power supply, it also links to each other with the input end (a, c) of a rectification circuit simultaneously, between elementary winding and rectification circuit input end, be serially connected with the normally closed switch of this current supply circuit break-make of control, the transformer secondary output winding then links to each other with the input end (a, b) of another rectification circuit, and the output terminal of two rectification circuits then links to each other with electromagnet coil.

4, break electronics energy-saving coil according to claim 2 is characterized in that being serially connected with current-limiting resistance between electromagnet coil tap and the normally opened contact.