SU1354272A1 - Temperature sensor - Google Patents

Abstract

The invention relates to electrical engineering, in particular to thermal devices with a temperature-sensitive bimetallic disk element, and is intended to control and regulate temperature. The purpose of the invention is to facilitate the processability and extend the temperature range of the temperature sensor. The temperature sensor has a metal housing 1 with a bimetal disk 2 of a snap action located therein; fixed contact 5, mounted on the electrical output 3; movable contact 4 mounted on the radial protrusion of the annular contact holder 6 located between the fixed contact and the bimetallic disk. A radial protrusion with a movable contact located on it and an element 7 transmitting the movable contact moving the center of the disk form an elastic system in the form of a closed contour. The introduction of an elastic system into the sensor increases the manufacturability and extends the temperature range of operation. 2 Il. (L 00 ate 4 th

Description

The invention relates to electrical engineering, in particular to thermal devices with a temperature-sensitive bimetallic disk element, and is intended to control and regulate; temperneur.

The purpose of the invention is the improved processability and the expansion of the temperature range of the temperature sensor, Q

In fig „1 1 the temperature sensor is depicted, general view; in Fig, 2 - target contact holder, section.

The temperature sensor has a metal case 1 with a bimetallic disk 2 click

the disk, and the elastic side of the contour bends pronouncedly to the perimeter of the disk.

Thus, the proposed device eliminates the rigid mobile contact with the disk, which minimizes the deformation of the bimetallic disk at large temperatures (positive negative) medium and without additional layers / technological conditions, eliminates the imbalance of even 5 accordingly expands t

action, electrical lead 3 with fixed contact 5 fixed on the adjusting screw 4 and pressed by electrically insulating plastic. The housing 1 is sealed with a sealing ring 6 located in the recess of the cup 1, parts of the n-th lock are made by an elastic gasket 8, and the final fixing of the screw after calibrating the sensor is accomplished by compounding

The movable contact 9 is mounted on a radial protrusion in the center of an annular contact holder 10 made of spring metal. The disc 2 method and the radial protrusion of the ring 10 locate element 11, the radial protrusion of the ring 10 and element 11 form an aggressive system in the form of a closed contour.

The principle of operation of the device is as follows.

When turning the temperature of the medium atur 5 to the upper specified limit, the bimetallic 2 will shift its center to the opposite position indicated in FIG. 1, Moving contact 9 moves following the center of disk 2. Contacts open (close).

When the temperature of the medium drops to the lower preset limit, the bimetallic disk 2 is clicked back in the shelf 1, according to FIG. 1, the contacts are closed (opened). A further decrease in the temperature of the medium causes a smooth movement of the center of the bimetallic disk. The hard side of the closed loop is moved according to the movement of the center.

operating range,

the disk, and the resilient side of the contour bends pronouncedly to the jumble of the disk.

Thus, in the proposed device, the rigid connection of the movable contact with the disk is eliminated, which minimizes the deformation of the bimetallic disk with large temperature changes (positive and negative) of the medium and without additional layers and technological elements eliminates the imbalance of the sensor and 5, respectively expands

When testing the proposed device, it was found that the sensor misalignment is not observed. This makes it possible to operate the sensors with high reliability in a wide range of positive and negative temperatures without additional complicated technological operations.

F o r t i i l a invention

A temperature sensor containing a metal housing in which

a thermosensitive bimetallic disk, a non-twisted contact mounted on an electrical outlet, a movable contact mounted on a radial protrusion of a ring end

a hinge carrier located between a fixed contact and a thermosensitive bimetallic disk, characterized in that, in order to maintain manufacturability and

expanding the temperature range 5 it is equipped with a U-shaped element installed with the possibility of transferring the movement of the thermo-sensitive bimetallic center

the disk to the movable contact, the radial protrusion of the annular contact carrier with the mounted sliding contact and the U-shaped element form

a kind of closed contour, one of the sides of which, allowing for elastic deformation, is oriented towards the moving contact, and the other being rigid, abuts against a thermo-sensitive bimetallic disk,

Compiled by C, Gordon Editor A. Kozoriz Techred L. Oliynyk

Order 5703/48 Circulation 697 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, JN35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

2

Proofreader V. But ha

Claims (1)

Claim A temperature sensor comprising a metal case in which a temperature-sensitive bimetallic disk is placed, a fixed contact mounted on an electrical terminal, a movable contact mounted on a radial protrusion of an annular contact holder located between the fixed contact and a heat-sensitive bimetallic disk, characterized in that , in order to increase manufacturability and ⁴⁰ expand the temperature range, it is equipped with a U-shaped element installed with the ability to transfer premises of the center of heat-sensitive bimetallic 45 of the disk to the movable contact, the radial ’protrusion of the annular contact holder with the movable contact mounted on it and the U-shaped element form an elastic system having 50 is a view of a closed loop, one side of which allows elastic - deformation, facing the movable contact, and the other being rigid, abuts against the heat-sensitive bimetallic disk.