CN2273034Y - Multicolor magnetic rotor - Google Patents

Abstract

The utility model discloses an improved multicolor magnetic rotor used for modern large dynamic display screens, which is realized mainly by using similar motor principle. More than two coils of a stator made of fixing coils are made through using a piece of permanent magnet sheet to correspond to the inner magnetic type double-coupling return circuits of two coils and using a rotary color cylinder provided with the permanent magnet sheet as a rotor, the coils control the strength and the direction of the signal electric current input into the fixed coils, cause the driving magnetic field produced by the stator and the permanent magnetic field in the rotary color cylinder to interact, and force the rotary color cylinder to rotate according to required direction and angle and display required color and fast continuous varied cartoon function. The utility model is particularly suitable for advertisement propaganda in the field of economic circulation.

Description

Polychrome magnetic is turned

The utility model belongs to the display element that constitutes large electronic display curtain equipment.

The display element of modern large-scale dynamic electron display screen removes and adopts bulb, light emitting diode (LED) liquid crystal (LCD) and the magnetic board turning, relatively the electronic display that controlled by computer, that formed with multicolor displaying element (patent No. is 89204917.0) of novelty.But the used multicolor displaying element of this display screen is that to adopt the formed magnetic field of magnetic core in each fixed coil be relatively independent export-oriented magnetic field, the permanent magnetism sheet of rotating cylinder inboard then with fixed coil in the corresponding one by one formation external magnetic type structure of magnetic core.Relatively independent magnetic field coupling circuit of magnetic core in such fixed coil and the corresponding formation of permanent magnetism sheet then is the single loop coupling.Behind this single loop external magnetic type structure composition display plane, then between adjacent multicolor displaying element, have certain electromagnetism phase mutual interference, and the big more this interference of drive current is obvious more.In addition, because the radius of gyration of the permanent magnetism sheet of this single loop external magnetic type structure is substantially the same with the radius of gyration of rotating cylinder colouring face, promptly be in maximum position, thereby the rotator inertia of rotating cylinder is bigger, thereby colour solid variable color speed is restricted, so the electronic display of forming for its can only color display can not realize the animated function of Fast transforms.Moreover this single loop coupling requires all (as 4) the single loop symmetry in each display element to get well on the one hand, thereby higher to the technological requirement of producing display unit.On the other hand, colour solid has certain negative function to the rotating torque between the adjacent loop when rotating 90 degree turn colors, make the total rotating torque of colour solid weaken, reduce the sensitivity of colour solid, is unfavorable for the raising of colour solid variable color speed equally.Also have the variable color window of present multicolor displaying element to adopt open type, thus the performance of anti-blown sand, sleet a little less than, thereby on the regional condition of applying, be subjected to certain restriction.

Task of the present utility model is that the problem at above-mentioned existence designs, and solves the phase mutual interference of magnetic field radiation and the problems such as velocity of rotation of variable color.Design after the improvement has not only kept original color function and power consumptive province, advantage such as simple in structure, reliable, also solved electromagnetic interference each other, improved the variable color speed of colour solid, made it have the animated function of higher conversion rate at the display screen of forming by it.Simultaneously also strengthened anti-blown sand, the ability of the sleet that wafts, and easily manufactured.

Solution of the present utility model is to improve design on the basis of multicolor displaying element, and its principle of work still adopts class machine operation principle to adopt realization, and the polychrome rotor of promptly making " stator " by fixed coil and the permanent magnetism sheet being housed is made " rotor " and formed.The magnetic structure that this programme adopted is the internal magnetization structure, and adopts the two-circuit coupling.So not only solved the phase mutual interference between magnetic is turned but also its moment of inertia is reduced, and rotate sensitivity and improve, so the variable color speed that magnetic is turned had been improved.The electronic display of being made up of it can not only color display, also has the animated function that image can comparatively fast change continuously.For preventing the influence of natural dust storm and sleet, on its color display window, increased transparent shield in addition.

Rotation of the present utility model is to pass to the polarity of the magnetic field that Control current changes the fixed coil magnetic core in fixed coil, can change " stator " magnetic field, at this moment " stator " magnetic field and " rotor " magnetic field interaction, force colour solid according to adding electric current requirement rotate certain orientation (clockwise or inhour), certain angle (60 degree, 90 degree, 120 degree, 180 degree etc.).That is to say certain (group) coil that changes in the fixed coil or the direction of current in certain several (group) coil, just can control the polarity in " stator " magnetic field, force " rotor " rotation or brake.The color relation that is the rotational tube changes and changes according to the direction of drive current in the fixed coil.This variation can show two above color positions as required.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1: the utility model external form figure;

Fig. 2: be combined into one of display unit floor map with the utility model;

Fig. 3: fundamental diagram of the present utility model;

Fig. 4: duty of the present utility model is 0 synoptic diagram when spending;

Fig. 5: the synoptic diagram of duty of the present utility model when turning 90 degrees clockwise;

Fig. 6: the synoptic diagram when duty of the present utility model turn 90 degrees for inhour;

Fig. 7: the synoptic diagram when duty of the present utility model is spent for rotation 180;

Fig. 8: structural representation of the present utility model;

Fig. 9: the A-A sectional view that is Fig. 8;

Figure 10: the front view of the utility model fixed coil understructure;

Figure 11: be the vertical view of Figure 10;

Figure 12: be the upward view of Figure 10;

Figure 13: rotational barrel structure figure of the present utility model;

Figure 14: be the A-A sectional view of Figure 13;

Figure 15: the utility model transparent shield structural drawing;

Figure 16: the Distribution of Magnetic Field synoptic diagram of the utility model fixed coil magnetic core;

Figure 17: the Distribution of Magnetic Field synoptic diagram of the utility model permanent magnetism sheet;

Figure 18: two of the permanent magnetism sheet kinds of assembling synoptic diagram in the utility model fixed coil magnetic core and the rotating shaft;

Figure 19: the utility model skeleton structure diagram;

Figure 20: the left view that is Figure 19;

Structure of the present utility model is shown in Fig. 8-9, and Fig. 9 is the sectional view of the A-A of Fig. 8.1 is coil among the figure, and 2 are rotating shaft, and 3 is rotating mask, and 4 is the permanent magnetism sheet, and 5 is colour band, and 6 is skeleton, and 7 is magnetic core, and 8 is base, and 9 is upper cover plate, and 10 is bottom plate, and 11 is protective cover.

Fig. 3 is a fundamental diagram of the present utility model, Fig. 4-the 7th, the working state schematic representation when the different number of degrees.Its expression the utility model has working position more than 2 kinds.Can show (as 4 kinds) different colours more than 2 kinds.So the electronic display of being made up of it can show the wherein image of more than one colors, thereby satisfy the demand by people's requirement controlling and driving marking current size and direction.Two dull and stereotyped representatives of permanent magnetism " rotor " among Fig. 4-7, four driving magnetic fields that on behalf of fixed coil, magnetic core coil produce: the polarity of " stator ".Fig. 4 represents that duty is 0 when spending, and promptly 3. two coils of A1, A2 (1. pass to the identical electric current of big or small equidirectional with two coils of B1, B2 (among Fig. 3 2. 4.) among Fig. 3; Fig. 5 is expressed as clockwise and turn 90 degrees, i.e. the electric current of two coils of A1, A2 (1. 3.) commutation, and Fig. 6 is expressed as inhour and turn 90 degrees, i.e. two coils of B1, B2 (2. 4.) electric current commutation; Fig. 7 is expressed as and rotates 180 degree, and promptly two coils of A1, A2 are 1. 3.) and the middle electric current of two coils of B1, B2 (2. 4.) commutate simultaneously.

With reference to Fig. 4-7, the utility model is a fixed coil of forming the parallel symmetry of angle location of equal with the coil (being generally 4) of band magnetic core more than two base plane coordinate king, per 2 coils are one group, four coils are divided into two groups, be respectively A group, B group, the connecting line of A group coil is A1, A2 among corresponding diagram 3-Fig. 7, and the connecting line of corresponding B group coil is B1, B2.Magnetic core by four fixed coils is formed " stator " magnetic field, and the distribution of this magnetic field magnetic line is not outwards but inwardly, is not separate but connects each other and form a magnetic field integral body (showing as Figure 16), therefore claims that it is the internal magnetization structure.Rotating part of the present utility model is the rotational tube, and there are two permanent magnetism sheets its inside, the parallel interior rotating shaft both sides of rotational tube that are symmetrically located at, and polarity of the magnetic field is opposite, and the magnetic line of force distributes as Figure 17 as showing two permanent magnets formation closed-loop paths, a magnetic field.That is to say that two permanent magnetism sheets in fixed coil and the rotational tube produce " " magnetic field is uncorrelated mutually, is in closed equilibrium state separately for rotor.When the rotational tube cover be assembled into display unit on the fixed coil after, at this moment " rotor " magnetic field is among " stator " magnetic field, the result of " rotor " magnetic field and " stator " magnetic field interaction, original closed equilibrium state all can be broken with " rotor " magnetic field in " stator " magnetic field, according to the synthetic new field circuit of the size groups of magnetic resistance in the magnetic loop.New Distribution of Magnetic Field characteristics are corresponding two the coil magnetic cores of every permanent magnetism sheet, as shown in Figure 4, so be referred to as the two-circuit coupling.As seen the magnetic line of force by this figure distributes, the intensity in " stator " magnetic field should equate with the intensity in " rotor " magnetic field, and be difficult in practice realize equating, but because employing is the internal magnetization structure, therefore " rotor " is when magnetic field intensity is unequal, understand self and form the closed-loop path, and can not cause interference to external radiation.

With reference to Fig. 8. Fig. 9 and Figure 18, the two ends magnetic pole of two permanent magnetism sheets of the present utility model is the two ends of close four coil magnetic cores respectively, and must guarantee that gap between them is less than 0.5 millimeter, make magnetic resistance much smaller than the magnetic resistance between two permanent magnetism sheets, every corresponding respectively two the coil magnetic cores of permanent magnetism sheet constitute field circuit simultaneously.The magnetic core of four coils has magnetic property, and the magnetic pole of this magnetic core is subjected to the control that the drive current direction changes in the coil again simultaneously, that is to say, this magnetic core has the function of storage color code signal.

With reference to Fig. 3 and Fig. 4-7, concrete analysis control is rotated and the physics course of work of mapping window color by the direction and the directed location of rotational tube of drive current in the coil.Now be that example describes with Fig. 4.4 coils are divided into two groups of A B among the figure, and the connection between them as shown in Figure 3.Import from A1 for A group coil regulation drive current direction, A2 output then is forward current, otherwise is negative current; Direction dictates for B group coil drive is identical with the A group, and B1 input B2 just is output as, otherwise for negative.At this moment the magnetic core syntagmatic in permanent magnetism sheet and the coil is as shown in Figure 4 in the rotational tube.The magnetic field of permanent magnetism sheet 1 constitutes the loop by the magnetic line of force of loop A 1, B2 in Fig. 4; The magnetic field of same permanent magnetism sheet 2 constitutes the loop by the magnetic line of force of loop A 2, B2, reaches the magnetic field balance, rotational tube location, and a kind of color appears in the window of display unit.When A group coil is imported the pulsed drive current of negative sense, then the magnetic line of force direction of A group coil is anti-phase immediately, repel each other according to the magnetic field same sex, the principle that there is a natural attraction between the sexes, at this moment the magnetic line of force of permanent magnetism sheet 1 focuses on coil B1, the magnetic line of force of permanent magnetism sheet 2 focuses on coil B2, the magnetic line of force of the magnetic field suction permanent magnetism sheet 2 of while coil A1, the magnetic field of loop A 2 then attracts the magnetic line of force of permanent magnetism sheet 1, the variation of the above-mentioned magnetic line of force, all produce the moment that the rotational tube is moved in the direction of the clock, because the angle between the adjacent windings is 90 degree, so after rotating torque forced the rotational tube to clockwise rotate 90 degree (as Fig. 5), " stator " magnetic field reached new balance with " rotor " magnetic field, rotational tube location, i.e. a kind of new color of the window transform of display unit.

With reference to Fig. 4, when when B group coil is imported the pulsed drive current of negative sense, then force the counterclockwise 90 degree location of rotational tube, window another kind of color occurs as shown in Figure 6.Equally with reference to Fig. 4, when to A, two groups of coils of B when importing the pulsed drive electricity of negative sense simultaneously, then force the rotational tube to rotate 180 degree, as shown in Figure 7.

Figure 19-the 20th, skeleton structure diagram of the present utility model, skeleton are the column-styles made by the insulating material of non-magnetic conduction or square.There is side plate at its two ends, and the upper end side plate thickness is the magnetic core thickness of coil, and the lower end side plate is slightly thick than magnetic core thickness.And the skeleton bottom has the square plug of an opening to be used for fixing coil on base (8), its length is identical with base (8) upper aperture with width, have a direct through groove on skeleton middle part and the two end side panels, in order to place the coil magnetic core, the notch direction is identical with skeleton square plug opening.

" stator " described in the utility model, promptly fixed coil is made up of coil (1), skeleton (6), magnetic core (7).It evenly stands vertically on the garden shape boss that is fixed on base (8), and differs 90 degree between each coil.Coil (1) evenly encloses on skeleton (6) around 800～3000 with 0.02～0.2 millimeter high strength enamelled wire usually.For protection against the tide, but the coil impregnated insulating paint.Skeleton is generally used insulating material such as bakelite, nylon, manufacturings such as plastics.For fixed coil can be securely fixed in base (8) boss hole, the skeleton lower end is the square plug of an opening, and opening surface is pressed in the square hole on the boss to the boss garden heart.Magnetic core (7) is made " [" shape, " I " shape or 90 degree " L " shapes with soft magnetic material." size of [" shape with not with rotating mask in permanent magnetism sheet (4) collide and exceed.The gap of the termination of magnetic core termination and permanent magnetism sheet (4) is generally 0.2 to 2 millimeter, is preferably 0.5 millimeter." [" shape magnetic core can be used the soft magnetic material manufacturing side, flat or circle, can be 1～10 millimeter made usually with diameter, makes the best but use diameter to be 1.5～2.5 millimeters.

Figure 10-the 12nd, understructure figure of the present utility model.With reference to Fig. 8-9, it has one side is display window, and colour band (5) color in " rotor " on the rotating mask (3) is to be shown by this window.The bottom center of base has a round boss, and the external diameter of boss has several square holes less than the internal diameter of rotating mask (3) on the sub-multiple angle center line of boss, and the center in hole is determined by the coil radius size from the boss back gauge.And the quantity in hole is on demand more than two, and its is for installing and fixing coil usefulness, so the size of square hole is identical with the plug of coil rack one end, belongs to wringing fit and assembles.The base bottom has fixed bottom cover plate (10) circular groove, and it is used for pushing down the extension line usefulness of coil one end.

The base boss center has the rounded channels that is used for for rotating shaft (2) rotation, should lean on before the middle mind-set base, this be for the color area of the demonstration that makes colour band on the rotating mask (5) many as far as possible, the base display window is equipped with an arc translucent cover (11), is to prevent that dust storm, sleet are to invasion and attack of the present utility model.

Figure 13-the 14th, rotational body structure synoptic diagram of the present utility model, its rotating mask can be made an integral body with rotating shaft, also can separate.The center of rotating mask (3) and rotating shaft (2) concentricity should be fine, and error should be less than 0.08 millimeter usually.Rotating shaft cross section in the rotating mask is rectangular or square, rotating shaft both sides and shaft parallel paste symmetrically two rectangles the permanent magnetism sheet as (Figure 18 _aShow) or in rotating shaft two ends and the corresponding part of magnetic core two ends that is fixed on coil, vertical with rotating shaft, and two foursquare permanent magnetism sheet (Figure 18 are fixed in the parallel rotating shaft termination of passing symmetrically _bShow).No matter the pole arrangement of these two magnetic sheets is rectangular vertical stickup, and still foursquare horizontal fixed is the closed-loop path that " N " extremely corresponding " S " utmost point self can form " rotor " magnetic field all the time.Rotating shaft (2) is answered smooth abrasion-proof with the contacted rounded channels of base.Rotating mask (3) is made with the light-weight non-magnetic (as aluminium, plastics etc.) that certain physical strength is arranged.Wall thickness is elected 0.1～0.8 millimeter as, and the surperficial king's of rotating mask (3) the available coating of colour band (5) directly sprays, and also the ribbon paper of available adhesive sticker is pasted.The physical dimension of rotating mask (3) is consistent with the window size of display unit, window size is usually within 10 * 10 millimeters to 50 * 50 square millimeters scopes, the size of window is more little, the resolution of forming coloured image in situation of the same area is high more, and image continually varying animation effect is good more.

Also have upper cover plate (6) with reference to Fig. 8-9 the utility model, its center pit is corresponding with sphere garden, the center heart of base convex platform slightly forward, and their concentricity should be less than 0.08 millimeter.The aperture size in this hole is with the rotating shaft (2) of entangling rotational tube upper end, and guarantees the rotational tube freely to rotate on pivot center and do not rock and exceed.

Embodiment of the present utility model, fixed coil encloses around 800-3000 with 0.02～0.2 millimeter high strength enamelled wire, and window size is 20 * 20 square millimeters, and the magnetic fidle of end intensity of permanent magnetism sheet is the best greater than 600～1600 Gausses with 1200 Gausses.The coil core diameter is 2 millimeters, two ends curve 30～90 the degree " [" shape, between magnetic core termination and the permanent magnetism sheet crack between 0.2～2 millimeter, best with 0.5 millimeter here.And base (8), rotating shaft (2), skeleton (6), upper cover plate (9) bottom plate (10) all select for use ABS plastic or bakelite powder compacting to form.

Employing the utlity model has that visibility is good, power consumption is little, simple in structure, easy to manufacture, various, the easy to use and energy long preservation image of color, can be single or multiple sliverings ground, form large screen display easily, make advertising and station, airport, harbour, sports ground in the current development of the national economy of particularly suitable and the commodity circulation, board is made to indicate in the cinema.

Claims (8)

1, a kind of " stator " that constitutes by fixed coil, the polychrome magnetic that " rotor " that the rotational tube constitutes and base are formed is turned, and the plural coil that it is characterized in that " stator " is the two coupling of the internal magnetization magnetic circuit with corresponding two fixed coils of 1 permanent magnetism sheet; Horizontal or vertical rotational tube is arranged; The rotating shaft both sides of rotational tube or up and down the perpendicular or parallel symmetry in two ends be stained with two permanent magnetism sheets; Display window is equipped with transparent shield.

2, polychrome magnetic according to claim 1 is turned, and it is characterized in that the magnetic core apparatus of " stator " coil has the soft magnetic material of colour coding memory function to make " [", " I ", " L " shape; The best is converted into 30～90 degree " [" shapes for two ends.

3, polychrome magnetic according to claim 1 is turned, and the coil that it is characterized in that being vertically mounted on " stator " on the same plane of base is the column-style more than 2, and the angle of adjacent windings is 90 degree or 120 degree or 180 degree or 60 degree.

4, polychrome magnetic according to claim 1 is turned, and it is characterized in that the rotating shaft middle part is for rectangular or square in the rotational tube.

5, turn according to claim 1 and 3 described polychrome magnetic, it is characterized in that useful non-magnetic conduction insulating material is made garden shape or square skeleton in the coil, have the groove of laying magnetic core on skeleton middle part and the biside plate; Skeleton one end has the square plug of opening.

6, polychrome magnetic according to claim 1 is turned, it is characterized in that in the magnetic core termination of fixed coil and the rotating shaft permanent magnetism sheet gapped be 0.2～2 millimeter, optimum dimension is 0.5 millimeter.

7, according to wanting profit to require 1 described polychrome magnetic to turn, the magnetic field that it is characterized in that the permanent magnetism sheet is 600～1600 Gausses, and the best is 1200 Gausses.

8, polychrome magnetic according to claim 1 is turned, and the translucent cover that it is characterized in that the anti-dust storm sleet that display window is laid is that the organic glass or the transparent material of 0.1～1 millimeters thick made.

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