SU928441A1 - Tumbler - Google Patents

Description

$) TUMBLER

The invention relates to electrical engineering, and more specifically to switching devices. Known toggle switches containing dielectric housing, side contact plates and central support plates that are not movably mounted on the base of the housing, perekny krntaktoderzhateli and switching mechanism 1 and 2j are known. These toggle switches are not reliable enough. Tumblers containing a dielectric body with an edge on its base, side contact and support plates and a switching mechanism comprising a lever and a holder with a spring-loaded pusher and a recess under said lever having two fixed positions 3j are also known. These toggle switches are unreliable in operation and have a short lifespan. The design of the switching mechanism, including the lever and the holder with a central hole for interaction with the lower part of the lever, is based on the dependent interaction of the lever and the holder, i.e. on zaolaivaniya cage lower portion of the lever when installing it in the center holes of the cage. However, permissible total errors on the offset of the holes in the kryikk during cutting, lid shift When installing and securing it on the body, distorting the sleeve when expanding it, the lower part on the lid, result in asymmetric orientation of the lower part relative to the central hole of the yoke, Housing, overvoltages in the lower part of the lever , is shifted in the transverse direction and turns on the diagonal of the body until it is jammed in it. In addition, this toggle switch provides movement of the yoke along a curved trajectory, the arc falling down described by the lower part of the lever does not provide for a cage stopper in an extended direction and, depending on the value of the total technological errors, the amount of the creep to the left will not be equal to the displacement of the cage to the right when the lever is fixed in one of the extreme provisions. Contact with less pressure is subject to more erosive wear and premature failure. The rib on the base of the housing is designed to eliminate electrical breakdown between adjacent contact groups, while the problem of eliminating lateral displacement and rotation of the housing along the diagonal of the housing is partially solved, since the interaction between the lever and the housing leads to rubbing of the walls of the housing with the walls of the rib or housing. The traditional shape of the cage with bevels in the upper part and the arcuate profile of the ribs confirm that the cage moves along curvilinear trajectories following the lower part of the rod. In the known toggle switches, the stability of the contact pressing is not ensured. The purpose of the invention is to increase reliability and increase service life. This goal is achieved by the fact that in a tumbler containing a dielectric body with an edge on its base, side contact plates and support plates fixedly mounted on the base of the body, flip contact plates mounted on the corresponding cent. a rotary support plate with the possibility of moving interaction, and a switching mechanism comprising a lever and a holder with a spring-loaded thrust rod and a recess under the lever, is both shaped in the form of a parallelepiped with a longitudinal channel, the recess on the lever is made in a V-shaped form in at least one of the longitudinal sections, rib section, housing facing the cage, are made flat and parallel to the base case and the end of the lever, which interacts with the walls of the hollowed holder, is in the form of a hemisphere, while the edge of the case is entered the hollow channel of the holder, which is installed with the possibility of interaction with one of the side walls of the housing in each of the extreme fixed positions of the lever. The recess of the V-shape is made elongated. Figure 1 shows a general view of the toggle switch in two projections (main view and left view); Figures 2 and 3; FIGS. 4 and 5 — housing. The toggle switch consists of a housing 1, side contact plates 2 and 3, support plates i ribs 5 changeover contact plates 6, holder 7 with a channel 8 and a recess 9, a lever with a hemisphere 10, springs 11, pushers 12, a cover 13, a sleeve 14 and a support axis 15. The toggle switch works as follows. In the static state, the lever mounted on the axis 15 occupies one of the extreme positions. When the holder 7 under the influence of the compression spring 11 is pressed to the hemisphere 10 of the drive lever, the pushers 12 to the changeover contacts 6, and the ends of the contacts 6 to the ends of the stationary contact plates 3, the holder 7 is pressed to one side of the housing side the edge of the case is horizontal to its base. The other fixed contact group remains normally open. With an external impact on the lever, the yoke 7 is displaced in the opposite direction along the edge 5 of the housing 1, the end of the lever moving along a curved path, and the yoke moving along a horizontal straight line. Pushers 12 compress the springs 11, and when passing through the critical point of transfer, an instantaneous transfer of the holder 7 occurs in the opposite direction. The contacts 2 are closed, while the holder 7 is pressed against the opposite wall of the housing 1 and remains also in a horizontal position. When the lever is returned, the switching mechanism takes its initial position. During the entire switching cycle, the hemisphere 10 of the drive lever rolls along the recess 9 of the yoke 7 to pivotally interact, and the hemisphere is displaced in the transverse direction due to the elongated shape of the notch but does not occur. The stroke of the yoke 7 remains constant in each of its extreme positions, which puts the work of the contact pairs in equal conditions and thus ensures their reliability and long service life. The yoke is made of a thermoplastic material with a low coefficient of friction, which significantly improves its sliding on the surface of the body rib. invention 1. A toggle switch comprising a dielectric body with an edge at its base, side contact and support contact plates, flip contact plates and a switching mechanism including a lever and both with a spring-loaded pusher and a recess under said lever having two fixed 4TOj in order to increase reliability and increase service life, the sleeve is made in the form of a parallelepiped with a longitudinal channel, the recess under the lever is made of a y-shape at least in from the longitudinal sections of the toggle switch, the section of the body edge facing the cage is made flat and parallel to the base of the case, and the end of the lever that interacts with the walls of the recess of the cage is hemispheric, and the casing edge is inserted into the longitudinal channel of the cage that is installed with . interaction with one of the side walls of the housing in each of the extreme fixed positions of the lever. 2. Toggle pop. 1, differing in and with the fact that the recess of the Y-shaped form is made elongated. Sources of information taken into consideration. Upon examination 1.Patent of England f 1558752, cl. H 1 N (H 01 H 23/28), 1980. 2.Patent of England No., cl. H 1 V (H 01 H 23/28), 1971. 3. For France, ff 2223809, cl. H 01 H 23/20, 197 (prototype).

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Claims (2)

Claim 1. A toggle switch comprising a dielectric housing with an edge at its base, lateral contact and support; .15 contact plates, flip contact plates and a switching mechanism including a lever and a clip with a spring-loaded pusher and a recess for said lever, 20 having two fixed positions, characterized in that in order to increase reliability and increase service life, the clip is made in the form parallelepiped with a 25 longitudinal channel, the recess for the lever is made in a V-shape in at least one of the longitudinal sections of the toggle switch, the portion of the body rib facing the holder is made flat and parallel to the base casing, and the end of the lever, interacting with the walls of the recess of the cage, in the form of a hemisphere, while the edge of the casing is inserted into the longitudinal channel of the cage, which is installed with the possibility of interaction with one of the side walls of the casing in each of the extreme fixed positions of the lever. 2. Toggle switch pop. 1, distinguishing with I. the fact that the deepening of the V-shaped is made elongated.