SU725109A1

SU725109A1 - Thermosensitive switch

Info

Publication number: SU725109A1
Application number: SU782677279A
Authority: SU
Inventors: Владимир Константинович Уткин; Генриетта Николаевна Кольнова
Original assignee: Предприятие П/Я В-2203
Priority date: 1978-09-04
Filing date: 1978-09-04
Publication date: 1980-03-30

Description

Термочувствительный выключатель работает следующим образом.Thermal switch operates as follows.

При нагревании сверх допустимой температуры элемент 8 расплавл етс , освобожда шток 5. Последний под действием пружины 7 вместе с шайбой 6 перемещаетс вверх, разрыва электрическую цепь.When heated above the permissible temperature, the element 8 melts, releasing the rod 5. The latter, under the action of the spring 7, together with the washer 6, moves upwards, breaking the electrical circuit.

Дл повторного использовани производитс нагрев элемента 8 до его расплавлени , щток 5 досылаетс в исходное положение и удерживаетс в таком положении до застывани сплава.For reuse, the element 8 is heated until it is melted, the brush 5 is returned to its original position and held in that position until the alloy solidifies.

Claims

1. A thermosensitive switch comprising a housing, a thermo sensitive element, a switching mechanism consisting of fixed contacts fixed in the housing and movable contacts associated with a spring-loaded stem that interacts with a thermo sensitive element characterized in that.

that, in order to increase reliability, it is equipped with a metal chamber rigidly fixed on one side of the housing, guide holes are made on opposite sides of the housing, a spring-loaded rod is placed in the said holes with the possibility of movement, a temperature-sensitive element is placed in the said metal chamber, and a movable The contact is rigidly fixed on the spring-loaded stock.

2. The switch according to claim 1, characterized in that the fixed contacts are made of fork-shaped from an elastic material, and the movable contact is in the form of a washer.

Sources of information taken into account in the examination

1. US patent number 3727164, cl. H 01 H 37/76, 1973.

2. USSR author's certificate number 528628, cl. H 01 H 37/76, 1976.