CN2187831Y - Three-position polarizing magnet suspension contactor - Google Patents

Abstract

The utility model relates to a three-position polarizing magnetic suspension contactor, belonging to an electric appliance product. The three-position polarizing magnetic suspension contactor is composed of a machine shell, a static contact head arranged on the machine shell, an output bracket, a movable contact head arranged on the output bracket, and an electromagnetic actuating mechanism for driving the output bracket. An armature iron is made from a permanent magnetic material which is linked with the output bracket, two groups of static iron cores which are made from high residual magnetic materials are installed on two sides of THE armature iron, a coil is arranged on a core post, and the coil is connected to a position placing-restoring control circuit to form the electromagnetic actuating mechanism. The three-position polarizing magnetic suspension contactor has simple structure, small volume, a little of wire laying, low manufacturing cost, and good energy-saving good effect. The three-position polarizing magnetic suspension contactor can form a serial product.

Description

Three-position polarizing magnet suspension contactor

A kind of three bit polarization magnetic suspension contactors belong to electric elements.

At present three adjustings are modes of using always in automatic control system, as the just commentaries on classics of motor in the heating in the temperature control system-stop-cooling off, the electric drive system-stop-reversing, start, turn round-stop etc.Realized in the past regulating for three and adopt two common two contactor joint controls to finish usually, need like this that equipment is many, volume big, wiring how and power consumption big.Chinese patent CN85102776A provides a kind of three-position electromagnetic relay, its electromagnetic actuator is by the shell of magnetic conduction, the shell middle part installs on a yoke, the armature output shaft is installed, complex structure, production cost height, when it is in two SM set modes, all need electric current to keep, so its power consumption is big.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art, provide that power consumption is only little for a kind of volume of product power consumption 1/20 of finishing similar function, wiring less, high energy-saving type three contactors simple in structure, cheap for manufacturing cost.

The utility model is realized with following technical scheme: it by housing, be installed on that the fixed contact on the housing, movable output bracket, output bracket are provided with moving contact, the electromagnetic actuator that drives output bracket is formed.Described electromagnetic actuator by with output bracket interlock and the armature made by permanent magnetic material, two groups of fixed cores being made by the material that higher remanent magnetism is arranged after the polarization are installed in the both sides of armature, on its stem stem coil is set, coil inserts set one reset control circuit and forms.

The beneficial effect that the utility model had: 1, because two groups of fixed cores adopt is that the material that has higher remanent magnetism after polarizable, the polarization is again made, and armature is made by permanent magnetic material, therefore, when contactor placing three kinds of states any one and be in static after, do not need electric current to keep, when being in SM set mode, has only set one reset control circuit power consumption, and power consumption is minimum, the power consumption of this contactor only is at present for realizing about 1/20 of the used electrical apparatus product power consumption of same purpose, can save the energy, have higher utility.2, realize that the used components and parts of the utility model are few, therefore simple in structure, be easy to processing and manufacturing, low cost of manufacture and can be made into series of products.Alternative existing like product is finished the adjusting of three states.

Describe the utility model in detail below in conjunction with drawings and Examples.

Fig. 1 is three bit polarization magnetic suspension contactor master pseudosections;

Fig. 2 is three bit polarization magnetic suspension contactor set, one reset control circuit schematic diagrams;

Fig. 3 is three bit polarization magnetic suspension contactor electromagnetic actuator schematic diagrames;

Fig. 1～Fig. 3 has provided a kind of most preferred embodiment of the present utility model, it is by housing 1, available insulating material is made, housing 1 inwall is provided with spacing slideway 2, be provided with in the spacing slideway 2 armature 9 and with the output bracket 3 of its interlock, armature 9 can be made by permanent magnetic material, output bracket 3 is equipped with moving contact 5, on the housing 1 with on the moving contact 5 corresponding positions upper fixed contact 4 and the next fixed contact 6 are being installed, on in the both sides of armature 9 are separately installed with the spacing slideway 2 that is fixed in housing 1, following two groups of fixed cores 7 and 10, iron core is the E type, on, be mounted with coil 8 respectively in following fixed core 7 and 10 center pinch, 11, and by coil brace 12 supportings and fixing, can assemble electromagnetic actuator earlier during assembling, pack into then in the housing, and by base plate 13 encapsulation, 15,16 are respectively down, last fixed core fixing hole, housing is outside equipped with the electronic circuit guard shield.Described E core can select for use the magnetic material of high remanent magnetism to make.Armature 9 can select for use the polarization permanent magnetic material to make the spatial movement that armature 9 can be limited at the spacing slideway 2 of housing 1.The output of this contactor has three state, i.e. two kinds of SM set mode and reset mode, when keeper 9 is between the upper and lower fixed core 7,10 is reset mode, when keeper 9 and last or following fixed core adhesive, moving contact 5 links to each other with fixed contact 4 or 6 respectively, two kinds of SM set modes of contactor output.Can with contactor pay contact 4,6 and connect after be serially connected in the loop of relay J so that the power supply of control relay J.Above-mentioned described upper and lower fixed core coil 8,11 serial connections are gone into by Z ₁, Z ₂SM set mode control button, an end and Z ₁, Z ₂The SM set mode control button links to each other and the other end is anti-phase and the diode D that connects ₁, D ₂In the loop of forming, its position, multiple mansion condition controlled in reset button at, relay tip and connection in series-parallel diode D ₅, D ₃, D ₄Capacitor C ₃The reset circuit of forming, and form set one power-supplying circuit that resets by foregoing circuit and constitute.The utility model adopts movable output bracket, and also available lever or tooth bar realize that the quantity of contact can be established as required, and mixes arc quenching system according to the capacity of contact and make series of products.

Operation principle: when pressing the button Z ₂The time, AC power is through diode D ₁, D ₂Rectification is delivered to positive and negative direct current respectively on the two fixed core coils 8,11, and two is unshakable in one's determination polarized, upper iron core 7 polarization polarity intermediate ends are the N utmost point, and two ends are the S utmost point, and it is consistent with the polarity of armature 9, and unshakable in one's determination 10 polarity is opposite with upper iron core 7 polarization polarity down, and therefore, upper iron core 7 repels armature 9, and unshakable in one's determination 10 inhale mutually with armature 9 down, be connected to pair contact 5-6 adhesive in the relay J loop, relay J energising, its contact 17-18 adhesive, 19-20 disconnects, and gives capacitor C ₄Charging, first kind of SM set mode of contactor output.When pressing Z ₁During button, the polarization polarity of two fixed cores with press Z ₂Polarization polarity is opposite during button, armature 9 and last fixed core 7 adhesives, and the contactor that is connected in the relay circuit is paid contact 4-5 adhesive, and this moment, contactor was exported another kind of SM set mode.When pressing the button F or when having a power failure, relay J outage, its normally closed contact 19-20 closure, capacitor C ₄By diode D ₃, D ₄To 8,11 discharges of two fixed cores, 7,10 coils, unshakable in one's determination 7,10 is polarized, their polarization polarity and armature 9 same polarities, and repulsion armature 9, generation bi-directional magnetic suspension location, therefore, armature 9 is suspended in the centre position of upper and lower two fixed cores 7,10, this moment contactor to export the third state be reset mode.

Claims (1)

1, a kind of three bit polarization magnetic suspension contactors, comprise housing, be installed on the fixed contact on the housing, movable output bracket, output bracket is provided with moving contact and drive the electromagnetic actuator of output bracket, it is characterized in that electromagnetic actuator is provided with coil by installing by having after the polarization on two groups of fixed cores that higher remanent magnetism material makes, its stem stem with the both sides of output bracket interlock and the armature of being made by permanent magnetic material, armature, coil inserts set one reset control circuit and forms.

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