CN2243115Y

CN2243115Y - Magnetic seat

Info

Publication number: CN2243115Y
Application number: CN 95217468
Authority: CN
Inventors: 王金源
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-07
Filing date: 1995-08-07
Publication date: 1996-12-18
Anticipated expiration: 2005-08-07

Abstract

The utility model relates to a magnetic seat, comprising a rotary rectangle magnetic element, two magnetic yoke iron groups, an upper non magnetic block, and a lower non magnetic block. The two magnetic yoke iron groups are respectively composed of a plurality of yoke iron sheets through piecing, the relative inner sides of the yoke iron sheets are respectively provided with flanges, the both sides of the upper non magnetic block and the lower non magnetic block arranged between the two magnetic yoke iron groups are respectively provided with concave parts, and the concave parts can be tightly connected with the flanges of the yoke iron sheets. The utility model has strong suction force.

Description

Magnet base

The utility model belongs to electric elements, relates in particular to a kind of magnet base.

Traditional magnet base, as Fig. 1, shown in Figure 2, magnet base coats one with two yokes 11 can be by the magnetic element 12 of turn, be provided with nonmagnetic substance 13 11 of two yokes, magnetic element 12 can be rotated to the precalculated position by a knob 14, make the flux circuit formation conducting of 16 of magnet base bottom 15 and absorbates or open circuit, the effect that reaches absorption and discharge, yet, the magnetic yoke iron block of traditional magnetic seat is generally one and forges or milling body, if in it during by magnetic conduction, the magnetic line of force in the overall structure might be not orthogonal to the rotating shaft of rectangle magnetic element, lowers its effective magnetism intensity, in addition because of the magnetic field in this overall structure irregular, and produce the magnetic field eddy current loss, and then weaken the suction of magnet base.

The purpose of this utility model is to provide a kind of magnet base, makes its absorption affinity strong, can reduce the magnetic field eddy current loss significantly, and each element of magnet base is difficult for getting loose, and the manufacturing of yoke iron slice need not be forged or milling, thereby reduces its production cost.

The utility model adopts following technical scheme:

Magnet base of the present utility model, comprise, one can be by the rectangle magnetic element of turn, two magnetic yoke groups, be positioned between two magnetic yoke groups on, following non-magnetic block and nonmagnetic before, backboard, two magnetic yoke groups are made up of predetermined quantity and the identical most yoke iron slice contiguous concatenations of geometry, the relative inner of yoke iron slice is near last, lower end position has a breach respectively, the ora terminalis of each breach has flange, most yoke iron slices are perpendicular to the rotation of rectangle magnetic element, two magnetic component do not have circular arc side in, and the bottom has a contact site that protrudes respectively downwards, on, following non-magnetic block has an inner arc surface respectively, form a column type inner chamber to coat the rectangle magnetic element with the interior circular arc side of two magnetic yoke groups is common, on, following non-magnetic block both sides have the recess that the flange that can stop most yoke iron slices laterally slides laterally respectively, the flange driving fit of this recess and most yoke iron slices, have most location holes that connect on each yoke iron slice, the location hole of each yoke iron slice same position is connected with each other logical, and with the stretch through connection location hole of each yoke iron slice of pin, each yoke iron slice is linked fixing, at a yoke iron slice rear side away from knob, having two is thick location-plate than yoke iron slice, the position of the corresponding yoke iron slice location hole of two location-plates, has countersunk respectively, front apron has protruded out most reference columns in the face of the one side of yoke group, each reference column closely inserts the part location hole of yoke group respectively and makes front apron in conjunction with the yoke group, the outside of most yoke iron slices can have the recess of a reservation shape, the magnetic yoke iron plate can be that material is made with the sand steel, on, following non-magnetic block and non magnetic backboard are made with aluminium, and also available plastic cement penetrates one-body molded.

Specifically narrate embodiment below in conjunction with accompanying drawing:

Fig. 1 is the stereogram of traditional magnetic seat

Fig. 2 is the cutaway view of Fig. 1 II-II line

Fig. 3 is the three-dimensional exploded view of the utility model first embodiment

Fig. 4 is the cutaway view of Fig. 3 IV-IV line

Fig. 5 is the dorsal view of the utility model second embodiment

Among the figure, circular arc sides in 11 yokes, 12 magnetic elements, 13 nonmagnetic substances, 14 knobs, 15 magnet bases bottom, 16 absorbates, 3 magnetic elements, 31 knobs, 32 arcwall faces, 4 yoke groups, 41,42 contact sites, 43 yoke iron slices, 43A are away from non-magnetic block on the yoke iron slice of knob, 44 breach, 441 flanges, 45 location holes, 46 inner chambers, 47 location-plates, 471 countersunks, 48 pins, 49 recess, 5,6 times non-magnetic block, 51 and 61 inner arc surfaces, 52 and 62 recesses, 7 front aprons, 71 reference columns, 8 backboards

First embodiment of the present utility model such as Fig. 3, shown in Figure 4, magnet base has one can be by knob 31 by the rectangle magnetic element 3 of turn, two relative arcwall faces 32 of magnetic element 3 by two magnetic yoke groups 4 and up and down

non-magnetic block

5 and 6 coat, two magnetic yoke groups 4 have circular arc side 41 in respectively, and the bottom has a contact site 42 that protrudes respectively downwards,

non-magnetic block

5 and 6 is between two magnetic yoke groups 4 up and down, when rectangle magnetic element 3 by turn during to the precalculated position, flux circuit between magnet base bottom and absorbate forms conducting or opens circuit, two magnetic yoke groups 4 are by predetermined quantity and geometry identical 43 adjacent overlapping compositions of most yoke iron slices, the relative inner of most yoke iron slices 43 has a breach 44 respectively near the upper and lower side position, the ora terminalis of each breach 44 has flange 441, most yoke iron slices 43 are perpendicular to the rotation of rectangle magnetic element 3, on each yoke iron slice 43, have most location holes 45 that connect, the location hole 45 of each yoke iron slice 43 same position is connected with each other logical, at a yoke iron slice 43A rear side away from knob 31, have two and be thick location-plate 47 than yoke iron slice 43, the position of two location-plates, 47 corresponding yoke iron slice 43 location holes 45, has countersunk 471 respectively, and with the stretch through connection location hole 45 of each yoke iron slice 43 of pin 48, and link each yoke iron slice 43 fixing,

non-magnetic block

5 and 6 has an inner arc surface 51 and 61 respectively up and down, form column type inner chambers 46 jointly to coat rectangle magnetic element 3 with the interior circular arc side 41 of two magnetic yoke groups 4,

non-magnetic block

5 and 6 both sides have the recess 52 and 62 that the flange 441 that can stop most yoke iron slices 43 laterally slides to two outsides respectively up and down, this recess 52 and 62 and flange 441 driving fits of most yoke iron slice 43, this magnet base also has and stops the magnetic element can axially movable nonmagnetic front and rear baffle 7 and 8, front apron 7 has protruded out most reference columns 71 in the face of the one side of yoke group 4, each reference column 71 closely inserts the part location hole 45 of yoke group 4 respectively and makes front apron 7 in conjunction with yoke group 4, backboard 8 is discoideus, be fixed on inner chamber 46 rear ends closely by adhesive, the material of most yoke iron slices must be the material of high magnetic conductivity, generally can be the sand steel, the contact-making surface of

non-magnetic block

5 and 6 and two yoke groups 4 is coated with adhesive up and down, and the non-magnetic block up and down of present embodiment is selected aluminium for use.Fig. 5 is second embodiment of the present utility model, the outside of most yoke iron slices 43 of two magnetic yoke groups 4 of magnet base can have the recess 49 of a reservation shape, can reduce material and weight like this, in addition, the non-magnetic block up and down 5 of the magnet base of present embodiment and 6 and non magnetic backboard 8 be that to adopt plastic cement to penetrate one-body molded.

Facts have proved, magnet base of the present utility model, reasonable in design is made simply, and cost reduces, and reduces the magnetic field eddy current loss, and each component is difficult for getting loose, and reaches design purpose.

Claims

1. magnet base, comprise, one can be by the rectangle magnetic element of turn, two magnetic yoke groups, be positioned between two magnetic yoke groups on, following non-magnetic block, it is characterized in that, it also comprises nonmagnetic front and rear baffle, two magnetic yoke groups are made up of predetermined quantity and the identical most yoke iron slice contiguous concatenations of geometry, the relative inner of yoke iron slice is near last, lower end position has a breach respectively, the ora terminalis of each breach has flange, yoke iron slice is perpendicular to the rotation of rectangle magnetic element, two magnetic component do not have circular arc side in, and the bottom has a contact site that protrudes respectively downwards, on, following non-magnetic block has an inner arc surface respectively, form a column type inner chamber jointly to coat the rectangle magnetic element with the interior circular arc side of two magnetic yoke groups, on, following non-magnetic block both sides have the recess that the flange that can stop most yoke iron slices laterally slides laterally respectively, the flange driving fit of this recess and most yoke iron slices, have most location holes that connect on each yoke iron slice, the location hole of each yoke iron slice same position is connected with each other logical, and, each yoke iron slice is linked fixing with the stretch through connection location hole of each yoke iron slice of pin.

2. magnet base according to claim 1 is characterized in that, at the yoke iron slice rear side away from knob, having two is thick location-plate than yoke iron slice, and the position of the corresponding yoke iron slice location hole of two location-plates has countersunk respectively.

3. magnet base according to claim 1 is characterized in that, front apron has protruded out most reference columns in the face of the one side of yoke group, and each reference column closely inserts the part location hole of yoke group respectively and makes front apron in conjunction with the yoke group.

4. magnet base according to claim 1 is characterized in that the outside of described most yoke iron slices can have the recess of a reservation shape.

5. magnet base according to claim 1 is characterized in that, can adopt the sand steel is the magnetic yoke iron plate that material is made.

6. magnet base according to claim 1 is characterized in that, the upper and lower non-magnetic block and the non magnetic backboard that can adopt aluminium to make.

7. magnet base according to claim 1 is characterized in that, described upper and lower non-magnetic block and non magnetic backboard can penetrate one-body molded with plastic cement.