SU1686518A1

SU1686518A1 - Bridge microswitch with unitary break of circuit

Info

Publication number: SU1686518A1
Application number: SU884432967A
Authority: SU
Inventors: Михаил Владимирович Михеев; Николай Николаевич Соловьев
Original assignee: Предприятие П/Я Г-4993
Priority date: 1988-04-15
Filing date: 1988-04-15
Publication date: 1991-10-23

Abstract

Изобретение относитс к электротехнике . Целью изобретени вл етс повышение износостойкости и расширение эксплуатационных возможностей микровыключател за счет увеличени интервала рабочих температур. В корпус 1 вставлены неподвижные контакты 2 и токопроводный упор 3 с пазом, в котором размещен заостренный конец рычага 4. Рычаг 4 выполнен с возможностью поворота под воздействием приводного элемента 5. Контактный мостик 6 в виде рамки одним концом закреплен в пазу рычага 4. Рабоча пружина 8 расположена внутри мостика, одним концом жестко закреплена на токопроводном упоре 3, а другим - на свободном конце контактного мостика 6. На свободном конце мостика 6 также закреплены подвижные контакты 7. Рабоча пружина 8 выполнена волнообразной , имеет большую площадь поперечного сечени и меньшее удельное электрическое сопротивление материала по сравнению с ко актным мостиком 6. 2 ил.The invention relates to electrical engineering. The aim of the invention is to increase the wear resistance and expand the operational capabilities of the microswitch by increasing the range of operating temperatures. Fixed contacts 2 and a conductor support 3 are inserted into the housing 1 with a groove in which the pointed end of the lever 4 is placed. 8 is located inside the bridge, with one end rigidly fixed to the conductor support 3, and the other to the free end of the contact bridge 6. The movable contacts 7 are also fixed to the free end of the bridge 6. The operating spring 8 is made wavy; a greater cross-sectional area and minimal electrical resistivity material as compared with Comp act to bridge 6. 2-yl.

Description

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Claims

Claim

A single-break bridge microswitch containing fixed contacts, a conductive stop, a lever mounted on the conductive stop with the possibility of rotation relative to the stop, a contact bridge made in the form of a frame placed between the fixed contacts and the conductive stop. Moreover, one end of the contact bridge is mounted on the conductive emphasis with the possibility of rotation relative to the lever, as well as a working spring located inside the contact bridge, characterized in that, in order to increase wear durability and expanding operational capabilities by increasing the range of operating temperatures, the working spring is made undulating and rigidly fixed at one end to the conductive stop and the other at the loose end of the contact bridge, while the working spring has a large cross-sectional area and lower electrical resistivity of the material compared to the contact bridge.

Figure 2