CN2036311U

CN2036311U - Magnetism maintaining type electromagnetic relay switch

Info

Publication number: CN2036311U
Application number: CN 88218906
Authority: CN
Inventors: 张凡; 李江
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-09-15
Filing date: 1988-09-15
Publication date: 1989-04-19

Abstract

The utility model discloses a novel magnetism maintaining type electromagnetic relay switch, being an electricity saving type electromagnetism series switch which does not consume the electricity after closing the valve and belonging to the technical field of the low-voltage electric apparatus switch. The function of the novel magnetism maintaining type electromagnetic relay switch is to switch on or switch off an electrical contact in an electric loop, and the novel magnetism maintaining type electromagnetic relay switch comprises a set of especial tractive magnets, a connecting rod system and a plurality of groups of contacts. When some one polar pulse electricity is communicated in a coil, iron-cores are attracted and automatically protected by means of a constant magnetic field. When the pulse electricity with an opposite polarity is communicated, the iron-cores are released because of the mutual exclusion of the magnetic field. Compared with the existing magnetism maintaining type relay and the existing polarization relay, the utility model has the advantages of simple structure, strong versatility, large contact capacity and many contacts, having the working condition indication function and the manual operating function.

Description

Magnetism maintaining type electromagnetic relay switch

The low-voltage electrical apparatus switching device, a kind of power-saving type electromagnetic series switch device.Its effect is the electrical contact that is switched on or switched off in the electric loop, to reach the purpose of control of electrical equipment or electric wiring.According to different service conditions such as the electrical contact capacity of switching device, quantity, specification, arc quenching methods, can manufacture the series of products of different types such as contactor, magnetic starter, control relay, different size.

In prior art, most electromagnetic relay switch devices, for the follow-up continuation of insurance of tractive electromagnet sticking that makes it is held in the combined floodgate service position, usually adopts to excitation coil of electromagnet and power for a long time or set up a cover mechanical self-latching mechanism switching device " locked " is handled in the way of closing position.Polarized relay is different therewith with magnetic freeze mode relay, and it relies on " permanent magnet " electrical contact of switch operating, and sticking is (being " neutrality " position) sometimes in a certain existing service position.This class relay generally all has following four features: the first, and armature adopts hinge to be connected the version of (shaft fulcrum) with fixed core (or permanent magnet) without exception; The second, there is the armature of the work of swinging or left and right sides seesaw type work to reach seldom several to electrical contact; The 3rd, the work moment in permanent magnetic field is little, thereby can only promote the use of in miniature and miniature control relay; The 4th, relay does not have working state signal indication and manual-operating mechanism.

The utility model is different with above-mentioned prior art, its objective is in order to provide a kind of space utilization factor big, simple in structure, reliable operation, can manual operation and have a novel magnetic freeze mode electromagnetic relay switch device of working state signal indication, in the vast field of electromagnetism such as medium and small contactor, magnetic starter, control relay series low voltage switching device, replace existing traditional product, for Subscriber Unit is saved a large amount of electric energy.

Basic structure of the present utility model is: each switching device is by one group of special tractive electromagnet unit, an Electromagnetically-operating connecting rod, a signal operation bar, some groups of electrical contacts, contact fixed support, back-moving spring, buffer spring, parts such as shell are formed.The tractive electromagnet unit is by a coil, a bobbin, and one is moving unshakable in one's determination, and a fixed core and necessary yoke are formed.Only be made up of a permanent magnet and a corresponding accessory of adopting unshakable in one's determination in quiet, the moving iron core, other magnetic material that another iron core and yoke then adopt the minimum electrical pure iron of remanent magnetism or have a same physical properties is made.Different with the basic structure of existing polarized relay, magnetic freeze mode relay, the utility model tractive electromagnet does not have the hinge fulcrum, and moving iron core is all being done the motion of straight line fortune perpendicular to fixed core in the adhesive separation process up and down.Manufactory is as long as select the electromagnet and the permanent magnet of different size, different geometrical size, just can carry out effective choice control to work magnetic field, so that on the Electromagnetically-operating connecting rod, need layering that the electrical contact of various capacity and logarithm is set by the user, the contactor of forming all size, magnetic starter, relay switch apparatus.In order to overcome the essential defect that the traditional electrical magnetic switching device lacks working state signal indication and manual operation function, the utility model is equipped with a signal operation bar in the bottom of Electromagnetically-operating connecting rod, afterbody at this bar is equipped with a detachable special signal marker again, in order to the divide-shut brake operating state of clear and definite display unit.In addition, by one provide together at random, detachable special use " manual operation loop bar ", can realize manual operation easily to switching device.

The basic functional principle of the utility model device is: move at tractive electromagnet under the reaction force of gravity unshakable in one's determination and back-moving spring, the initial position of switching device remains on gate-dividing state.When feeding the Pulse Electric of a certain polarity in the electromagnet coil, the permanent magnetic magnetic line of force in the magnetic line of force in the electromagnet magnetic circuit system and the permanent magnet magnetic circuit system magnetic field suction of " addition " back generation in the same way is enough to overcome the reaction force that moves gravity unshakable in one's determination and back-moving spring, dynamic and static moment adhesive unshakable in one's determination, through the direct drive of Electromagnetically-operating connecting rod, electrical contact switches to the combined floodgate operating state.At this moment, even the electromagnet coil outage, because the permanent magnetic field suction of permanent magnet and another iron core is enough big, switching device will remain on the combined floodgate service position under the situation that does not consume electric energy.During separating brake, only need moment feeding and the opposite polarity Pulse Electric of combined floodgate work in electromagnet coil, the magnetic line of force incorgruous " subtracting each other " in the magnetic line of force in the electromagnet magnetic circuit system and the permanent magnet magnetic circuit system, under moving gravity unshakable in one's determination, back-moving spring reaction force and magnetic field repulsive force comprehensive function, the dynamic and static iron core that original sticking separates rapidly, and switching device is returned to initial gate-dividing state.

This shows, by the utility model device that said structure principle and operation principle are made, be a kind of novel magnetic freeze mode electromagnetic relay switch device different with prior art with " moment energising adhesive; permanent magnetic is held self-insurance, moment energising disjunction " feature.The same with permanent magnet-type motor, it fully opens up the huge energy of having utilized permanent magnetic magnetic field, having made full use of the permanent magnet manufacturing process of China reaches its maturity, novel permanent magnetic material continues to bring out, the favorable factor that the ratio of performance to price is very superior changes for product thereby make the utility model device become a kind of electricity-saving type that is easy to apply.

It needs to be noted: according to two groups or more tractive electromagnet elementary cell of the utility model regulation making, can also be reassembled into control, the auxiliary relay of the new spec of various derivations, jumbo contactor or multiple contact logarithm with one " unit switch support ", " horizontal stiffness connecting rod " and some covers " synchronously track-type facilities ".

Accompanying drawing 1 is one of embodiment of the present utility model.

Switching device moves (2) unshakable in one's determination, yoke (3) by fixed core (1), bobbin (4) coil (5), Electromagnetically-operating connecting rod (6), electrical contact group (7), contact fixed support (8), signal operation bar (9), marker device (10), back-moving spring (11), Thrust nut (12), shell (13), flexible liner (14), buffer spring compositions such as (15).Fixed core (1) adopts permanent magnet and corresponding accessory to make, the magnetic material that moving unshakable in one's determination (2) and yoke (3) all adopt the minimum electrical pure iron of remanent magnetism or have a same physical properties is made, and Electromagnetically-operating connecting rod (6) and the non-magnetic conduction insulating material of contact fixed support (8) use are made.The length of Electromagnetically-operating connecting rod look the electrical contact amount of capacity that is installed on the connecting rod, layering logarithm what and become.Moving (2) unshakable in one's determination, Electromagnetically-operating connecting rod (6), signal operation bar (9) is the structure that is rigidly connected.Square rhabodoid is processed on the latter's top, and afterbody is processed into garden cylindricality screw rod, exposes a few reaches in addition at Thrust nut (12).Marker device (10) is made into detachable structure, its upper end central part is offered a square hole that cooperates with signal operation bar (9) appropriateness, therefore, marker device after being in place can't be done axially rotation along the signal operation bar, but can upwards move as axially parallel, cooperation at back-moving spring (11) and Thrust nut (12) is down fixing, when the fabrication and installation height of marker device (10) should guarantee that switching device is in "on" position, this marker all conceals in the bottom line of shell (13), when switching device is in gate-dividing state, be exposed to again beyond the bottom line of shell (13), and to form the appearance of obvious contrast color, the divide-shut brake operating state of indicator cock device with surrounding environment.The lower center portion position of marker device (10) also is provided with one and opens wide hole, shape garden, and its slightly larger in diameter is in the external diameter of manual operation loop bar (16).In the ordinary course of things, this structure can prevent from will to touch the tail end screw rod of signal operation bar (9) or push to marker device (10), causes the switching device malfunction.

During the manual operation switch device, should use special manual operation loop bar (16), with the indent threaded sleeve of this boom end and about 5 to the 6 circle screw threads of tail end garden cylindricality screw rod rotation engagement of signal operation bar (9), can rely on the sliding handle of loop bar bottom, personnel selection is tried hard to recommend or is left behind moving (2) unshakable in one's determination, so as to reaching the purpose of manual operation switch device.In order to prevent misoperation, manual operation loop bar (16) should unload unified keeping at ordinary times.

Accompanying drawing 2 is two of embodiment of the present utility model.It with one of embodiment different be in: moving (2) unshakable in one's determination adopt permanent magnet and corresponding accessory to make, and one of its external form and embodiment are different.The magnetic material that fixed core (1) and yoke (3) then adopt the minimum electrical pure iron of remanent magnetism or have a same physical properties is made.In addition, all element numberings of present embodiment sign, material, structure, operation principle, annex etc. are all identical with accompanying drawing 1 described " one of embodiment ".

Accompanying drawing 3 is three of embodiment of the present utility model.

Fixed core (1), moving (2) unshakable in one's determination, yoke (3), bobbin (4), coil (5), Electromagnetically-operating connecting rod (6), back-moving spring (11), shell (13), flexible liner (14), buffer spring (15) constitutes the elementary cell of tractive electromagnet." one of embodiment " shown in its element number, material, structure, operation principle and the accompanying drawing 1 is identical.Unit switch support (18) and horizontal stiffness connecting rod (20) connect to a new integral body with above-mentioned two tractive electromagnet elementary cells: the fixed contact of electrical contact group (7) partly is fixed on the unit switch support (18) by busbar frame (22) and insulator foot (21).Moving contact part and touch spring (not marking) then are fixed on the horizontal stiffness connecting rod (20) by insulator foot (21).Track-type facilities (19) makes operator link (6) have minimum deflection angle in the process that axially moves both vertically synchronously, thereby each phase main contact of unit switch is synchronously closed a floodgate or separating brake.Detachable arc-extinguish chamber (23) is fixed in the outside of electrical contact (7), and pinout connector (24) divides crouches in the both sides of unit switch support (18), directly links to each other with distribution bus.The operation principle of present embodiment and aforementioned basic functional principle of the present utility model are identical, unique additionally are: the coil of two tractive electromagnets (5) should be connected in series or and receive in the same control circuit and go.

Claims

1, the low-voltage electrical apparatus switching device, a kind of electricity-saving type magnetic freeze mode electromagnetic relay switch device, by fixed core [1], moving [2] unshakable in one's determination, yoke [3], bobbin [4], coil [5], Electromagnetically-operating connecting rod [6], electrical contact group [7], contact fixed support [8], signal operation bar [9], marker device [10], back-moving spring [11], Thrust nut [12], shell [13], flexible liner [14], buffer spring [15] is formed, and it is characterized in that every group of tractive electromagnet of switching device formed by a fixed core [1] and one moving [2] unshakable in one's determination, and moving [2] unshakable in one's determination do not have hinge to be connected (shaft fulcrum) relation with fixed core [1] and yoke [3], two iron core adhesives up and down, all move both vertically during separation, every pair quiet, only there is a permanent magnet and a corresponding accessory of adopting unshakable in one's determination to make in the moving iron core.

2,, it is characterized in that fixed core (1) makes for permanent magnet and corresponding accessory by the switching device of claim 1 regulation.

3,, it is characterized in that moving (2) unshakable in one's determination and make for permanent magnet and corresponding accessory by the switching device of claim 1 regulation.

4, by the switching device of claim 1 regulation, it is characterized in that a signal operation bar (9) is equipped with in the bottom of Electromagnetically-operating connecting rod (6).

5, by the signal operation bar (9) of claim 4 regulation, the afterbody that it is characterized in that bar is equipped with the marker device (10) that detachable a, appearance and surrounding environment form obvious contrast color.

6, by signal operation bars (9) and the marker devices (10) of claim 4,5 regulations, it is characterized in that the two is in place after, the latter can't axially rotate along the former, but can upwards move as axially parallel.

7, by the marker device (10) of claim 5 regulation, when it is characterized in that switching device is in "on" position, this marker conceals in the bottom line of shell (13), is exposed to again beyond the shell bottom line during gate-dividing state.

8, by the signal operation bars (9) of claim 4,5 regulations, the afterbody that it is characterized in that this bar exposes in Thrust nut (12) a few reaches only in addition, must rely on special manual to operate loop bar (16) and can carry out manual operation to switching device.

9, by claim 1,2, the 3 switching device tractive electromagnet unit of stipulating, this type of unit that it is characterized in that two groups or more, can be with a unit switch support (18), the synchronous track-type facilities of some covers (19) and a horizontal stiffness connecting rod (20), be reassembled into a kind of derivation, big capacity or multiple contact group magnetic freeze mode electromagnetic relay switch device.