CN2142598Y

CN2142598Y - Power-saving electromagnetic device

Info

Publication number: CN2142598Y
Application number: CN 92239254
Authority: CN
Inventors: 王安铁
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-04
Filing date: 1992-11-04
Publication date: 1993-09-22
Anticipated expiration: 2002-11-04

Abstract

The utility model relates to a power-saving electromagnetic device, which belongs to the electromagnetic system of the technical field of the low-voltage electrical apparatus. The starting current of the power-saving electromagnetic device is seven times higher than the working current generally. The method of reducing the starting current by using an extending iron-core is adopt by the power-saving electromagnetic device, namely one end of the extending iron-core which is inserted into the coil winding is additionally provided with an extending iron-core which can be extended freely. The power saving effect is obvious. Iron lacquered wire winding, silicon controlled delaying conversion, and direct current circuit controlling scheme is adopted simultaneously. The utility model has the advantages of small starting current, accurate conversion, no arc light, fast releasing speed, etc. The utility model can be used for electromagnet, contactor, electromagnetic valve and other electromagnetic fields.

Description

Power-saving electromagnetic device

The utility model belongs to the energy saving type calutron that electromagnetic systems such as electromagnet in the low-voltage electrical apparatus field, contactor, electromagnetically operated valve are used.

At present, the power-saving technique of calutron mainly is to adopt full voltage starting to be transformed into the low-voltage direct sticking.Because the ad hoc structure of calutron has determined its starting current to reduce, generally speaking, the starting current of electromagnetic system such as electromagnet, contactor will be higher than operating current more than six times, reduces the present also suitable without comparison scheme of power-saving technique of starting current.After the alternating electromagnetic device changed DC operation in addition, obviously prolonged the release time after its outage, is unallowed in some occasion.

The purpose of this utility model is that a kind of starting current that the deficiencies in the prior art design is less, temperature rise is lower, conversion is accurate in order to solve, cut off the power supply after the energy saving type calutron of energy rapid release.

The purpose of this utility model can realize by following measure.End in the insertion coil of the moving iron core of calutrons such as electromagnet, contactor, setting up one extends unshakable in one's determination, this extends unshakable in one's determination by spring location (as the moving direction of motion unshakable in one's determination when downward also can without spring), can freely stretch, can drive moving action unshakable in one's determination by boss or pin etc. when stretching out, during withdrawal and moving iron core be an integral body.When the calutron energized, because it is nearer apart from fixed core to extend iron core, attraction is stronger, so there have less starting current just the extension iron core can be inhaled to be moving, drive is simultaneously moved iron core until adhesive.Be retractable in the moving iron core because extend iron core, be an integral body with moving iron core, so magnetic flux unshakable in one's determination after the adhesive and maintenance energy are all unaffected.During unshakable in one's determination adhesive fully, calutron promptly is transformed into low-voltage direct sticking state.More than saidly extend the part unshakable in one's determination that is unshakable in one's determination, can extend the core (seeing accompanying drawing one) of moving iron core as required, also half of extensible moving iron core or peripheral part.The extension iron core also can be made into multistage, promptly establishes one-level again and extend unshakable in one's determination on the extension iron core.Extend the fixed core end that also can be located at the winding that installs coil unshakable in one's determination, operation principle at this moment is fixed core and extends the moving action unshakable in one's determination that attracts unshakable in one's determination, until adhesive.

The time-delay economize on electricity conversion of the utility model calutron adopts controllable silicon to carry out, no arc light, and action is accurately and reliably; Iron enamelled wire winding is adopted in the current limliting step-down, has resistance, sense double action simultaneously, and cost and temperature rise are all lower; In order to guarantee the rate of release after magnetic system is cut off the power supply, taked control DC operation scheme, kept the rate of release of ac electromagnetism system basically.

Below in conjunction with a description of drawings embodiment of the present utility model.

Accompanying drawing 1 is extension of the present utility model work unshakable in one's determination schematic diagram (extending iron core is located on the moving iron core).(1) is that spring, (3) are that limiting plate, (4) are unshakable in one's determination for extending, (5) are that fixed core, (6) are coil windings for moving iron core, (2) among the figure.

Extending (4) unshakable in one's determination can freely stretch in the preformed hole that moves (1) unshakable in one's determination, by spring (2) and spacing version (3) location, can pass through limiting plate (3) drive moving (1) unshakable in one's determination when stretching out and move together; Can be an integral body with moving (1) unshakable in one's determination during withdrawal.After winding (6) energising, the magnetic field of coil will extend (4) unshakable in one's determination and inhale simultaneously to fixed core (5) moving (1) unshakable in one's determination, when extending (4) unshakable in one's determination and fixed core (5) when contacting, moving (1) unshakable in one's determination is under the electromagnetic attraction effect, the active force that overcomes spring (2) continues to inhale to fixed core, until adhesive.Because it is nearer apart from coil and fixed core (5) to extend iron core (4), so can reduce the starting current of electromagnetic system greatly.

Accompanying drawing 2 is the electrical schematic diagram of controllable silicon time-delay conversion and rapid release.D1, D2 are rectifier diode among the figure; D3 is a fly-wheel diode; D4 is a voltage stabilizing didoe; R1 is dividing potential drop, discharge resistance; R2 is a divider resistance; K is a controllable silicon; C is a charging capacitor; L1 is an iron enamelled wire winding; L2 is a coil windings; 1., 2., 3. be binding post.

As shown in the figure, terminal 1., 2. join (not constituting the loop) with AC power; 2., 3. join, this operation circuit can adopt manually or automatically with operation circuit.After connecting control loop, controllable silicon K is in conducting state, and coil windings L2 gets electric, calutron startup work; After the closure unshakable in one's determination, the capacitor C charging finishes, and the controllable silicon time-delay ends.This moment, the L1 winding sealed in the loop, reached the purpose of current limliting step-down.When calutron was out of service, electric current moment was zero among the coil windings L2, and electromagnetic system discharges immediately; Electric current in the entire circuit is zero at this moment, is in the strong attitude of the work for the treatment of.

The utility model is owing to adopted extension unshakable in one's determination, and iron enamel-covered wire winding, controllable silicon are delayed time and changed and operation circuit control flow directing device. So have that starting current is little, coil temperature rise is low, conversion is accurate, an advantage such as no arc light and rate of release are fast, extensively model is applied in electromagnet, contactor, magnetic valve and other electromagnetism field.

Claims

1, a kind of energy saving type calutron, form by moving iron core, fixed core, current limliting step-down winding, coil windings, rectification original paper, binding post and operation circuit etc., it is characterized in that: at a moving end that inserts in the coil windings unshakable in one's determination, setting up one extends unshakable in one's determination, this extends iron core and can freely stretch, can drive moving action unshakable in one's determination by boss or pin etc. when stretching out, during withdrawal and moving iron core be an integral body.

2, energy saving type calutron according to claim 1, its characteristic is: said extension iron core can be to extend moving core, half of part unshakable in one's determination, also can extend moving peripheral part unshakable in one's determination; Also can be that multistage extension is unshakable in one's determination.

3, energy saving type calutron according to claim 1 is characterized in that: the said extension end that can be located at the fixed core of the winding that installs coil unshakable in one's determination.

4, energy saving type calutron according to claim 1 is characterized in that: after controllable silicon ended, current limliting step-down winding put into operation.

5, energy saving type calutron according to claim 4 is characterized in that: said current limliting step-down winding is by the coiling of iron enamelled wire.

6, energy saving type calutron according to claim 1, its characteristic is: the terminal of a winding operation circuit is arranged, and by this terminal, operation circuit can directly be controlled the DC loop of this calutron, reaches the purpose that makes the calutron rapid release.