CN2078477U - Four colour magnetic particle orientation for coloured large-screen television projection - Google Patents

Abstract

The utility model relates to a four-color magnetic turning monomer for colored large screen, which is a display element of a colored large-screen display system. The utility model relates to the electromagnetic technique. The utility model relates to four-color magnetic turning monomer, mainly comprising a bracket, a housing, a shaft, a magnetic ring and a magnetic strip. The magnetic ring is a rotor, the magnetic strip is a stator, and the magnetic ring and the magnetic ring interact, which compose a pair of electromagnet mechanisms. The turning function of the four-color magnetic turning monomer can be completed, and positioning function can also be completed. The utility model overcomes the defects of the existing four-color magnetic turning monomer in structure and material. The driving effect to the monomer is good, and the operation of the monomer is reliable. A scanning mode can be adopted in the operation of the drive circuit of display system.

Description

Four colour magnetic particle orientation for coloured large-screen television projection

Four colour magnetic particle orientation described in the utility model is the display element of large colour screen display system, relates to electromagnetic technique.

Existing large color screen four colour magnetic particle orientation is the patent of invention of Japan, the utility model patent of 86106733,3 No. 21, volumes, G09F11/235 and Shanghai Computer Technology Service Corporation, 87204855,4 volumes No. 7, G09F11/10.Existing four colour magnetic particle orientation has comprised two cover electromagnet structures, and one has overlapped the rotary action of monomer, the positioning action of another set of monomer, and this two covers electromagnet structure can not unite two into one.Rotor in the two cover electromagnet all adopts the permanent magnetism material, is all the soft magnetism material and be decided to be.Two cover electromagnet structures in the existing four colour magnetic particle orientation, because each self-applying is single, driving weak effect to monomer, and in its rotational structure, the rotating shaft of being fixed on the housing is rotated in the axle sleeve at support two ends, because of support is thinner, and easy deformation, rotate flexibly thereby influence monomer, make its work unreliable.In addition, the electromagnet stator is the soft magnetism material, make monomer during turning must keep "on" position, thereby the average energy consumption of monomer is big.

The utility model at above-mentioned four colour magnetic particle orientation structurally, the shortcoming that exists on the material has proposed a kind of four colour magnetic particle orientation that not only can finish rotation but also can finish positioning action.

The utility model mainly is made of support (1), housing (2), jump ring (3), axle (4), magnet ring (5), magnetic stripe (6), radome (7).Be provided with the reinforcement of projection in the support (1), axle (4) is fixed on the reinforcement, and is in aggregates with support (1).Housing (2) is enclosed within on the axle (4), is blocked by jump ring (3), and housing (2) can rotate around axle (4).Housing is provided with ring groove in (2), and radome (7) is arranged in the ring groove, and magnet ring (5) is arranged at outside the radome (7), fits with radome (7), and magnet ring (5), radome (7) are all fixing with housing (2).Two orthogonal magnetic stripes in position (6) are wound with coil on it, be fixed in the reinforcement of support (1) internal projection.Be arranged at housing (2) and go up the magnetic stripe (6) that the interior magnet ring (5) of ring groove covers two quadratures, magnet ring (5) is done rotor, adopts the permanent magnetism material, has only the magnetic field of a pair of polarity.The magnetic stripe of two quadratures (6) is made stator, adopts semi-hard magnetic material, forms the magnetic field of a pair of polarity in the space.In the coil on it, pass to different pulse currents, can change the remanent magnetism polarity of magnetic stripe (6), change the remanent magnetism polarity of a magnetic stripe (6), then 90 ° of directions of space magnetic field reversing.Because rotor field and stator field interact, make housing (2) produce torque or location torque, because of " same sex is repelled each other, there is a natural attraction between the sexes ", when the coil of a magnetic stripe (6) wherein passes to pulse current with previous opposite polarity, then remanent magnetism polarity is changed, 90 ° of the space magnetic field change in polarity of stator, rotor will be rotated 90 ° of location later on.

The structure of the utility model design, housing (2) go up at axle (4) changes the children, and the adverse effect that can avoid rigging error and extraneous factor that housing (2) is rotated guarantees the four colour magnetic particle orientation reliable operation.In addition, the magnetic field of two quadrature magnetic stripes (6) acts on mutually with magnet ring (5) magnetic field, produces location torque, forms transient equilibrium, and two magnetic stripes (6) all have two kinds of functions of rotating and locating simultaneously, drives effective to monomer.The utility model stator magnetic stripe (6) adopts semi-hard magnetic material, make that monomer is to rely on the permanent magnetic field of rotor magnetic ring (5) and the residual magnetic field interaction of stator magnetic stripe (6) to rotate, the energy of the remanent magnetism polarity of instantaneous change magnetic stripe (6) is compared with the average energy that prior art is rotated and is wanted much less, therefore can reduce the total energy consumption of large colour screen display system significantly.In addition, adopt pulse current to drive, make the driving circuit of display system can adopt " scanning " mode to work, significantly reduce component number, reduce the display system cost.

Fig. 1 is the utility model vertical view.

Fig. 2 is the utility model left view.

Embodiment of the present utility model is as follows: rotor magnetic ring of the present utility model (5) can be a permanent-magnetic clamp, can be two permanent magnetic tiles, also can be the several piece permanent magnetic tile, forms the rotor field of having only a pair of polarity.Two stator magnetic stripes (6) are quadrature then, forms the magnetic field of a pair of polarity in the space.In addition, version of the present utility model also can be divided into two two stator magnetic stripes (6) and rotor magnetic ring (5) from the centre, the corresponding magnet ring of magnetic stripe, each other can be arbitrarily angled, form two cover independent structures, it makes effect, the effect of monomer rotation and location constant.Housing of the present utility model (2) outside surface is the aspect of four different colors, and stator magnetic stripe (6) is semi-hard magnetic material, can be iron nickel cobalt, iron cobalt vanadium etc.

Claims (3)

1, large color screen four colour magnetic particle orientation, comprise support (1), housing (2), jump ring (3), axle (4), it is characterized in that two orthogonal, as to be wound with coil on it magnetic stripes (6),, be fixedly arranged on the reinforcement of support (1) internal projection as stator; Magnet ring (5) as rotor is fitted with radome (7), covers two magnetic stripes (6), and magnetic bad (5), radome (7) all are arranged in the interior ring groove of housing (2).

2, four colour magnetic particle orientation according to claim 1 is characterized in that magnetic stripe (6) adopts semi-hard magnetic material products.

3, four colour magnetic particle orientation according to claim 1 is characterized in that axle (4) one ends are fixed on the reinforcement of support (1) internal projection, and in aggregates with support (1), housing (2) is enclosed within on the axle (4), is blocked by jump ring (3).

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