CN2394303Y

CN2394303Y - Bistable electromagnet with dual gaps and iron core movement in straight lines

Info

Publication number: CN2394303Y
Application number: CN 99234992
Authority: CN
Inventors: 吴守礼
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-30
Filing date: 1999-09-30
Publication date: 2000-08-30
Anticipated expiration: 2009-09-30

Abstract

The utility model is mainly used for double voltage-stabilizing electromagnets, bistable relays and bistable indicators and belongs to the field of the manufacture of the electromagnetic technique. The utility model is mainly composed of a U-shaped inner and a U-shaped outer magnetic conductors, a permanent magnet, a connecting supporting frame and a return spring sheet for separeting magnetism, wherein, the U-shaped inner and the U-shaped outer magnetic conductors be clamped by the connecting supporting frame, forming a double working gaps structure. Simultaneously, the return spring sheet for separeting magnetism is added between the working surface of an iron core and the magnetic conductor; one end of the return spring sheet for separeting magnetism is fixed on the magnetic conductors and the other end is positioned between the working surface of the iron core and the outer magnetic conductor, formng an included angle. The utility model has the advantages of simple structure, easy manufacturing, reliable performance, long service life, etc.

Description

Double-acting air gap linear motion type bistable electro-magnet unshakable in one's determination

A kind of double-acting air gap linear motion type bistable electro-magnet unshakable in one's determination is mainly used in bistable electro-magnet, bistable relay and the bistable state indicating device product, belongs to electromagnetic system technology for making field.

Background technology of the present utility model is disclosed No. 88104491.1 of Chinese invention patent communique " permanent magnet is by the fixing electromagnet of case " patent applications.The technological deficiency of its existence is: the first, because its inside and outside magnetic conductor is non-U font magnetic conductor, particularly magnetic conductor is a cross bar type structure in it, and its iron core is supported by outer magnetizer, and respectively there is magnet or the like inside and outside magnetic conductor both sides, make whole electromagnet structure complexity, the production cost height.The second, do not consider how to make things convenient for the initial suction and the confining force of regulating magnet in when design, but thereby property poor.

Goal of the invention of the present utility model is to release a kind of simple in structure at above-mentioned the deficiencies in the prior art, easy to manufacture, with low cost, and easy to adjust, the reliable operation of initial suction and confining force, the life-span is long, traverse unshakable in one's determination is big double-acting air gap linear motion type bistable electro-magnet unshakable in one's determination.

Goal of the invention of the present utility model can be achieved by the following technical programs:

This double-acting air gap linear motion type bistable electro-magnet unshakable in one's determination, be mainly used on bistable electro-magnet, bistable relay and the bistable state indicating device, it comprises U font outer magnetizer 1, permanent magnet 3, coil 6, unshakable in one's determination 10, simultaneously it also have magnetic conductor 2 in the U font, connect support 4, by non-magnetic conduction elastomeric material make every magnetic

return spring sheet

5,8 and bobbin 7 and push rod 9.The connection support 4 that permanent magnet 3 has a side plate 41 by both sides is installed on two ends to have between the inside and outside magnetic conductor 1 of U font and 2 of air gap; Two extreme faces of magnetic conductor 2 are respectively made a concentric holes in the U font, two extreme faces of magnetic conductor 2 are concentric in the endoporus of bobbin 7 and the U font, and also mounted thereto by being located at groove on the bobbin 7 biside plate end faces location of matching with magnetic conductor 2 in the U font; The iron core 10 that can make reciprocal axial motion is loaded among the concentric holes.Place respectively between 10 working faces unshakable in one's determination and the U font outer magnetizer 1 every magnetic

return spring sheet

5 and 8, the one end is fixed on the U font outer magnetizer 8, form the α angle between the other end and the U font outer magnetizer 1, when work, play a part every magnetic and provide to restore elastic force.The push rod made from non-magnet material 9 is threaded onto in the hole of U font outer magnetizer 1 end face, and is fixed on one heart on the axle head of iron core 10.Push rod 9 can also symmetrical being arranged on the U font outer magnetizer 1.

Advantage of the present utility model is: 1., since inside and outside magnetic conductor adopted the U font structure, bobbin is by magnetic conductor location and fixing in the U font, unshakable in one's determination by magnetic conductor support in bobbin and the U font, and only need adopt a permanent magnet, make its simple in structure being easy to process low cost of manufacture.2., between unshakable in one's determination and U font outer magnetizer, set up, make the adjusting of initial attraction of the present utility model and confining force easier every magnetic return spring sheet.Advantages such as the utility model has reliable working performance simultaneously, and the life-span is long, and traverse unshakable in one's determination is big.

Accompanying drawing and drawing explanation:

Fig. 1 is the structural representation of the utility model under the no power state;

Fig. 2 is the structural representation of the utility model under "on" position;

Wherein:

Magnetic conductor in the 1-U font outer magnetizer 2-U font

3-permanent magnet 4-connects support

5,8-is every magnetic return spring sheet 6-coil

7-bobbin 9-push rod

10-41-side plate unshakable in one's determination

Embodiment: this specification the 5th part and in conjunction with the accompanying drawings 1-2 provided full implementation example of the present utility model, so here no longer the repetition.Make the utility model and adopt traditional spot welding, processing methods such as riveted joint get final product.In production and processing, inside and outside magnetic conductor of U font and iron core should be selected soft magnetic material for use, and permanent magnet can be used various hard magnetic materials according to the needs of product.The mounting means of the permanent magnet between the inside and outside magnetic conductor of U font, can be that the N utmost point contacts with outer magnetizer, the S utmost point contacts with interior magnetic conductor, also can be that the S utmost point contacts with outer magnetizer, the N utmost point and the contacted form of interior magnetic conductor, different connected modes constitutes the different embodiment of the utility model.Constitute the utility model double-acting air gap, the bistable electromagnetism work structuring of linear motion type unshakable in one's determination as Fig. 1 or 2 by inside and outside magnetic conductor of U font and core shoe face.Also can push rod 9 be arranged on symmetrically on the U font outer conductor 1 as required, just can constitute the utility model straight-line two functions of carrying out unshakable in one's determination.

Below in conjunction with accompanying drawing 1-2 operation principle of the present utility model and current intelligence in use are described:

1., outer magnetizer polarity under the magnet effect is the S utmost point, interior magnetic conductor polarity is the N utmost point.

2., when the coil no power, two end faces unshakable in one's determination all are polarized to the N utmost point by permanent magnet, unshakable in one's determination is that heteropolarity is inhaled mutually with the outer magnetizer contact-making surface, and owing to distance between the two poles of the earth unshakable in one's determination boot upper and outer magnetizer differs bigger, the (see figure 1) that will remain unchanged in this position unshakable in one's determination.

3., add negative potential when the loop A end, when the B end added positive potential, electric current produced magnetic field by coil, and this magnetic field will overcome the magnetic field of permanent magnet on iron core, and make left end pole-shoe face unshakable in one's determination be polarized to the S utmost point, and the right-hand member pole-shoe face is polarized to the N utmost point.Left end pole-shoe face magnetic polarity unshakable in one's determination is identical with the outer magnetizer magnetic polarity, and left end pole-shoe face unshakable in one's determination will be subjected to magnetic field repulsive force moving linearly to the right.And the different magnetic field suction that will be subjected to of the magnetic polarity of right-hand member pole-shoe face unshakable in one's determination and outer magnetizer magnetic moves right, and moves on the position shown in Figure 2.At this moment, remove the voltage at coil two ends, iron core is polarized to the N utmost point by permanent magnet by interior magnetic conductor again, and with explanation 2., iron core will remain on this position.

4., when iron core is positioned at position shown in Figure 2, when the loop A end adds positive potential, the B end adds negative potential, with explanation 3., left end pole-shoe face unshakable in one's determination is polarized to the N utmost point, and the right-hand member pole-shoe face then is polarized to the S utmost point, iron core will be under magneticaction moving linearly left, up to position shown in Figure 1.And when removing the coil both end voltage, remain on this position.

5., when iron core is positioned at position shown in Figure 1, when the loop A end adds positive potential, the B end adds negative potential, left end pole-shoe face then unshakable in one's determination is polarized to the N utmost point, the right-hand member pole-shoe face is polarized to the S utmost point, iron core will not produce motion under the electromagnetic force effect.In like manner, when iron core was positioned at position shown in Figure 2, the loop A end added negative potential, and the B end adds positive potential, and iron core does not produce motion equally.

6., every between magnetic return spring sheet and outer magnetizer, has certain included angle α, as shown in the figure, its effect is to carry out between working face unshakable in one's determination and outer magnetizer every magnetic, by changing α adjustable included angle joint confining force and the initial suction unshakable in one's determination between its thickness and it and outer magnetizer.

Claims

1, a kind of bistable electro-magnet that is mainly used in, the double-acting air gap of bistable relay and bistable state indicating device linear motion type bistable electro-magnet unshakable in one's determination comprises U font outer magnetizer (1), permanent magnet (3), coil (6), (10) unshakable in one's determination; It is characterized in that:

A, it also has magnetic conductor (2) in the U font, connects support (4), every magnetic return spring sheet (5), (8) bobbin (7) and push rod (9);

The connection support (4) that b, permanent magnet (3) have a side plate (41) by both sides is installed on two ends to have between the inside and outside magnetic conductor of U font (1) and (2) of air gap;

Two extreme faces of magnetic conductor (2) are respectively made a concentric holes in c, the U font, the endoporus of bobbin (7) is concentric with two extreme faces of the interior magnetic conductor (2) of U font, and by being located in groove and the U font on bobbin (7) the biside plate end face magnetic conductor (2) location of matching, and mounted thereto, but the iron core of axial motion (10) is loaded among the concentric holes;

D, place respectively between iron core (10) working face and the U font outer magnetizer (1) every magnetic return spring sheet (5) and (8), the one end is fixed on the U font outer magnetizer (8), forms the α angle between the other end and the U font outer magnetizer (1);

E, push rod (9) are threaded onto in the hole of U font outer magnetizer (1) end face, and are fixed on one heart on the axle head of iron core (10).

2, double-acting air gap according to claim 1 linear motion type bistable electro-magnet unshakable in one's determination, it is characterized in that: push rod (9) can also symmetrical being arranged on the U font outer magnetizer (1).