RU2099795C1 - Indication cell for matrix boards - Google Patents

Abstract

FIELD: digital equipment. SUBSTANCE: device has two permanent magnets 2 each of which has two opposite sides of different colors. Magnets 2 are mounted in frame magnetic circuit 1 on parallel rotation axes 3 which are parallel sides of each magnet 2 which are of different colors and differ from its poles. Magnets 2 are mounted for their simultaneous turn into opposite direction under magnetic field from external source. EFFECT: decreased power consumption, simplified design, increased reliability. 2 cl, 15 dwg

Description

 The invention relates to the field of digital technology and is intended for remote output of alphanumeric and graphic information on screens in queuing systems.

 A known indicator [1] containing an electromagnet, the core of which is connected by a magnetic field with poles of permanent magnets made in the form of parallelepipeds.

 Also known is an indication element for mosaic displays (hereinafter referred to as an element) [2] (the authors took it as a prototype), which contains permanent magnets with contrast-colored sides as a storage and indicator two-stable element.

 The disadvantages of the known technical solutions are design complexity, high energy consumption.

 The technical solution to the problem is to reduce energy intensity, simplify the design, increase reliability.

 The problem is solved in that the inventive element is a two-stable memory and indicator element with contrasting colored sides, consisting of a magnetic circuit frame in which two mutually oriented permanent magnets are fixed, fixed in the axes. To transfer the element to the opposite state, an external magnetic field of an external exciting device can be used, which has the ability to alternately switch the effect on the display elements, for example, an “P” electromagnet - shaped.

 The novelty of the proposed technical solution is due to the fact that the mosaic panel, composed of display elements, each of which is a magnetic storage system with two stable states, consisting of a magnetic circuit frame and two magnets with contrast-colored sides fixed in the axes, allows to increase reliability, simplify design and reduce power consumption.

 According to patent and scientific literature, the claimed combination of features is not found, which allows to judge the inventive step of the proposed proposal.

 Industrial applicability is seen in the fact that the claimed indication element can be used in digital information display devices.

 In FIG. 1 shows a placard of a flat rectangular shape; in FIG. 2 - element (for a mosaic board of any form); in FIG. 3 the same in axonometric representation; in FIG. 4 embodiment of a cylindrical display panel; in FIG. 5-9 phase rotation of the magnets of the element; in FIG. 10-15 phase reversal of the magnets of the element.

 The indication element for mosaic displays consists of a magnetic circuit frame 1 (see Fig. 1), in which two mutually orientating permanent magnets 2 are located, fixed on the axes 3 in the frame of the magnetic circuit 1.

 To transfer the element to the opposite, an external exciting device 4 is used with a discretely controlled action on the display elements, for example, electromagnets "P" in the form of a shape that could be mounted on the movable carriage 5 for the display 6 in the form of a flat rectangle. In this case, to obtain the effect of recording new information, the exciting device 4 electromagnet (or group of electromagnets) must be moved along the elements with simultaneous (synchronous) change in the magnitude and direction of the current in it (in them).

 To obtain the effect of a creeping line, the exciting device is fixed stationary, and the elements are placed on the cylindrical surface 7 (figure 4) with forced rotation.

 The display element operates as follows.

 In the drawings attached to this description, the poles of all the magnets are shown conditionally. The description of the operation does not depend on the absolute polarity of the poles and symmetric arrangements of the magnets are not considered trivial. The magnetic core is not shown and does not appear in the description of the functioning of a single element as a magnetic body that does not fundamentally change the process of interaction of magnets.

 If a current is passed through the coil of an electromagnet (hereinafter referred to as EM), then the result of the interaction of the fields of the 2 magnets of the element and EM will be the rotation of the movable magnets of the element. In this case, depending on the direction of the current, two rotation options are possible (these processes are not symmetrical).

 Option 1.

 In FIG. 5–9 in phases, interaction according to the first embodiment is considered. In FIG. Figures 5 and 6 show the state of the system in the absence of an external current field. The magnets of the element are oriented opposite poles to each other due to the action of forces F1 and F2. This condition is stable and is the initial one.

 After applying current, three magnetic bodies participate in the interaction. There are moments of forces F3 and F4 acting on the magnets of the element of Fig.6. Under the influence of these forces (moments), the magnets of the element are rotated at an angle in opposite directions and are set in position as shown in FIG. 7. The moments of the deflecting forces F3 and F4 and the returning forces F1 and F2 are balanced.

The angle of equilibrium depends on the magnitude of the current, the shape and size of the magnets, the material of the magnetic circuit, the distance between the magnets of the element and the EM and is automatically set to this. In any case, the rotation angle <90 ^o , since the EM field strength is not infinite and the EM core is not shorter than the distance between the axes of the magnets of the element. In practice, this angle <30 ^o .

 After removing the current, only the magnets of the element of FIG. 8 interact. By the forces of interaction F1 and F2, the magnets return to their original state by reverse rotation of Fig.9.

Thus, when passing current through the EM according to option 1, only the deviation (disturbance) to a certain angle (<90 ^o ) of the element magnets occurs.

 The transition of the element to the opposite state does not occur.

 Option 2

 The initial state, as in option 1 of Fig. 10, the moments of the interaction forces F1 and F2 act on the magnets of the element.

After applying the current of Fig. 11, moments of forces F3 and F4 occur, acting on the element magnets from the EM side. Under the influence of these moments, the magnets of the element are rotated in opposite directions by an angle significantly exceeding 90 ^o and are established in the equilibrium state, similar to option 1. In this case, after turning the first 90 ^o , the former back poles are included in the interaction. 12-15 show the individual rotation phases. As the magnets rotate, the lines shorten and the gaps decrease - the magnetic flux increases.

After removing the current, only two element magnets interact with forces F1 and F2. Magnets, due to the forces of interaction, rotate in the same direction (by the remaining angle <90 ^o ) and occupy a new stable state opposite to the original one.

 An element transitioned to the opposite state.

 Since the description of the processes does not depend on the absolute polarity of the magnets, it is easy to notice that the transition of an element to the opposite state always occurs only in the indicated direction of rotation of its magnets.

Claims (2)

 1. Indication element for mosaic displays, containing two permanent magnets, each with a pair of opposite sides of different colors, characterized in that the permanent magnets are installed in the frame magnetic circuit on parallel rotation axes, which parallel the multi-colored sides of each permanent magnet that do not coincide with the poles of this permanent magnet, while the permanent magnets are installed with the possibility of their simultaneous flip in the opposite direction under the influence of a magnetic field created by an external excitation guide means.  2. The method according to claim 1, characterized in that the external exciting device is made in the form of a U-shaped electromagnet, the distance between the centers of the poles of which is close to the distance between the axes of rotation of the permanent magnets.

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