SU1497647A1 - Liquid metal switch - Google Patents

Abstract

The invention relates to electrical engineering, in particular to liquid metal switching elements, and can be used in automation devices, information-measuring equipment, communication equipment. The aim of the invention is to enhance the functionality by providing switching operation. Liquid metal key switch works in both monostable and bistable modes. In the initial state, the moving contact / K / 12 bridges a pair of stationary K 6, and a pair of stationary K 7 is open. When the key moves to the sealed case in time 0.45 s, the mobile K 12 moves from a pair of stationary K 6, unlocks them, to a pair of stationary K 7. Moving mobile K 12 occurs as a result of the Lorentz force arising from the interaction of a magnetic field magnet and the electric current flowing through the mobile K 12. An electric current is induced in the electrical conductor 10 as a result of a change in the magnetic induction penetrating the electrical conductor 10 as the permanent magnet approaches the electrical conductor 10. 3 sludge.

Description

3149

(| ps get about hyogts k :(: ieirrpo- rexHiiKc, and ipipip to .personal commutations and 11I11 zleg-uitam, and can be used c yci royc tpah a1) mt I1KII, I11for | 1ioi11 -1sritsl1) iinTi technique, technique of sleeping.

The aim of the invention is the extension (of functional capabilities to provide operation at the switch, with both t) single-stable and nonstable modes.

FIG. 1 is represented by liquid metal: i1ic keyboard chog-1mutato | 1n initial computation; ita FIG. 2 - lo ;, with external influence; in fig. 3- the base of an e-case with no Bepxiieii and pizhneG covers, horizontally closing the base, but with a slide and a 1m socket.

The ICO 5e t t ap l ic e c k i i c c) wrinkles (Fig. I) contains kpavpsh 1 in the form of a quadrant-shaped form, K.-gaiish

made of polycarbonate, a permanent magnet 2 is attached to the bottom of the frame by epoxy resin, magnetized along the key travel axis, the large CTopoiia of the magnet coincides with the axis of magnetization, spherical; springy etalt. A new wire, 4 square in the base 4 (polycarbonate core, filled with four leads 5, made of copper strip, in 1 leads 5 are attached by welding two pairs of unsupported contacts 6, 7 of the sealed enclosure 8. Herme body 8 consists of a base 9 (|}) ig. 3), made in the form of a square, prepared from 1P1 carboyate, as well as upper and lower covers (not shown). Two pairs of b-7, mobile contacts made of copper were pressed into the base 9, and an electrical conductor 10 was pressed in, and you made a loop in the form of a loop and made 1-HY11 of copper. At the intersection of the electrical conductor 10 and two pairs of fixed contacts 6, 7 in the base 9 a square hole 1 1 was cut ({hole g, a hole 1 1 in base 9 was sealed with epoxy glue using polycarbonate lids. At the ends of the electrical conductor 10 and one A pair of fixed contacts 6 is suspended under the contact BHJKHbrfi contact 12 in the form of a droplet of jnd .1

k;) Г- () of metal (mercury), tmp.py electrical conductor 10 and two pairs of conductive contacts 6, 7, wet, H1, | mercury

Liquid metal switch. It works the following way (: 1).

li source SOS 1G) IPI GI VISHN,

contact 12 (fig. 3) neper-iiiiKaeT between co6oii is a pair of unsupported contacts 6, and a pair of nep () l, vpzh) 11,1x contacts 7 times at a time. When the key I (Fig. 2) is moved to the sealed case 8 in less than O time, the AZ with the movable contact 12 (Fig. 3) moves from the napi, i fixed contacts 6, open them, to a pair of fixed contacts 7, 1 p. nh The displacement of the lower contact 2 occurs as a result of the action of L1; 1 Lorepza, which occurs during the interactions 1 and the magnetic field of the permanent magnet 2 (Fig. 2), and proceeds through the movable contact 12 (Fig. 3) of the electric current . Electric current is induced in the electrical conductor 1 (i}) nr. 3) as a result of a change in the agpitic INDUK1PI1, I propose1 (its electrical P1) the water lead 10 when the constant magnet 2 (phpg 2) approaches the electrical conductor 10 (Fig. 3).

When moving, the key 1 (Fig. 1) returns to its initial state in a time more than 0.2 s and the movable contact 12 (Fig. 3) also returns to the initial state, while the size, 1 pair of fixed contacts 7 (Fig. 3) and A pair of fixed contacts 6 (monostable mode) closes.

Moving the moving contact 1 occurs under the action of the Lorentz force, but directed in the opposite direction, since the elec- trical current that occurs when the key is moved to its initial state is also directed in the opposite direction, since it occurs as a result of a decrease in magnetic induction, rather than an increase , as it was when moving the key 1 to the sealed housing 8 (Fig. 2).

When the key 1 (Fig. 1) is moved to its initial state within a time of more than 0.2 s, the external influence (pressure) on the key 1 decreases gradually, the Lorepza force, tending to move the moving contact 12 (Fig. 3) to the initial state tion. less coupling force movable contact

that 12 with napdii stationary giggakt 7 and the transfer of coitle 12 to the initial state of ife occurs (bistable mode). For the first} - me111, e) 1 and movable (zgo contact 12 and ioreal pair IORODYZHIY::: 1 (tnt, cu 7) it is necessary to pass the key 1 again (fig. 2) to the hermetic-5i chassis 8 (at any speed) and return the clavigu 1 to its initial state in a time less than 0.2 s.

Formula n 3 about b e e 1

The liquid metal switch containing the key is constant: the magnet is installed in the key, the base, the return system is clav11; 1 and in the initial state, the sealed housing with a pair of fixed contacts located under it and under 6476

bottom || 1m contact, output: in the form of k; The plausible metrics a, o tl and h aa III and with the fact that, in order to expand the functional possibilities by providing work on the new, the sealed case is equipped with at least one additional pair of fixed contacts) 0 on the p / 10 speed of the sealed i; opnyca base perpendicular to the axis of the magnetization of the permanent magnet of the pit so that the loop contour does not go out of that loop; n.1 the dimensions of the permanent magnet, face electric waterworks and all moving contacts are wetted with liquid metal, and

0 contact is connected to the ends of the electrical conductor and one pair of fixed contacts.

Fig.h

Phi2.2

Claims (1)

The formula is invented !! I The liquid metal switch containing the key is constant !! the magnet installed in the key, the base, the system for resetting the key to its original state, a sealed enclosure with a pair of fixed contacts located in it and under a movable contact made in the form of a droplet of hard metal, that, in order to expand functionality by providing switching operation, the sealed housing is equipped with at least one additional pair of fixed tone contact and an electric conductor made in the form of a loop installed in the main plane a sealed case perpendicular to the axis of magnetization of the permanent magnet so that the loop loop does not go beyond the dimensions of the permanent magnet, the ends of the electrical conductor and all fixed contacts are moistened with molten metal, and the movable The contact 20 is suspended on the torn electric conductor and one pair of fixed contacts. Figure 1