SU817781A1

SU817781A1 - Pressure relay

Info

Publication number: SU817781A1
Application number: SU792763477A
Authority: SU
Inventors: Леонид Александрович Бубнов; Юрий Никонорович Куроедов
Original assignee: Предприятие П/Я А-7114
Priority date: 1979-05-07
Filing date: 1979-05-07
Publication date: 1981-03-30

Description

(54) РЕЛЕ ДАВЛЕНИЯ(54) PRESSURE RELAY

Изобретение относитс к электротехнике и может найти примейение в пневмоэлектрических системах.This invention relates to electrical engineering and may find application in pneumoelectric systems.

Известны реле давлени , содержащие корпус, эластичную мембрану с жестким центром и микропереключатель i.Pressure relays are known to include a housing, an elastic membrane with a rigid center, and a microswitch i.

Такие устройства имеют большие габариты .Such devices have large dimensions.

Известны также реле давлени , содержащие корпус, эластичную мембрану с жестгим центром, установленною так, что указанный жесткий центр имеет возможность взаимодействи с приводным элементом микропереключател . При работе этого устройства жесткий центр выполн ет роль рычага и согласующего элемента при передаче усили , развиваемого мембраной, к приводному элементу микропереключател 2..Pressure relays are also known, comprising a housing, an elastic membrane with a rigid center, installed so that said rigid center can interact with the drive element of the microswitch. When this device is in operation, the hard center acts as a lever and a matching element when transmitting the force developed by the membrane to the drive element of the microswitch 2.

В этом реле давлени не участвует в работе часть мембраны между стенкой и упором , так как ее перемещению преп тствует упор. Это приводит к уменьшению чувствительности и увеличению габаритов.In this pressure switch, a part of the membrane between the wall and the stop does not participate in the work, since the stop prevents its movement. This leads to a decrease in sensitivity and an increase in size.

Цель изобретени - уменьшение габаритов и повышение чувствительности путемThe purpose of the invention is to reduce the size and sensitivity by

расширени диапазона работы в зоне низких давлений.extending the range of operation in the low pressure zone.

Указанна цель достигаетс тем, что в реле давлени , содержащем корпус,- эластичную мембрану с жестким центром, установленную так, что указанный жесткий центр имеет возможность взаимодействи с приводным элементом микропереключател , упом нутый жесткий центр закреплен на эластичной мембране эксцентрично и опи раетс одним краем на корпус, а точка егоThis goal is achieved by the fact that in the pressure switch containing the housing there is an elastic membrane with a rigid center, installed so that said rigid center can interact with the drive element of the microswitch, said rigid center is eccentrically fixed on the elastic membrane and is supported by one edge on body and its point

взаимодействи с приводным элементом микропереключател смещена к краю, опирающемус на корпус.The interaction with the drive element of the microswitch is shifted to the edge resting on the housing.

Реле давлени представлено на чертеже.The pressure switch is shown in the drawing.

Эластична мембрана 1 с эксцентричноElastic membrane 1 with eccentric

за репленным жестким центром 2 зажатаfor replenished hard center 2 clamped

Claims

between housing 3 and base 4, a microswitch 5 is mounted on the housing. At housing 3, membrane 6 has a step 6 on which a rigid center 2 rests on one edge. Drive element 7 of microswitch 5 is on the line connecting the axis of symmetry W of the CTKoro center 2 and its point of support. To iodify the pneumatic signal to the housing 3, there is a plug 8. The pressure switch is closed by a cover 9, on which a connector 10 is installed for soldering wires from the contacts of the microswitch 5 and connecting external electric circuits. The relay works as follows. When a pneumatic signal is applied to the pressure relay input, the membrane 1 exerts a pressure force, which through the rigid center 2 is transmitted to the microswitch 5. At the same time, the membrane 1 deflects and lifts the hard center 2, which rotates relative to its support point as a second lever kind, acts on the drive element 7 microswitch 5, the closure of his contacts. When the pneumatic signal is removed, the diaphragm 1 with a rigid center 2 returns to its original position, and the contacts of the microswitch 5 open. The invention of the pressure switch comprising a housing, an elastic membrane with a rigid center, installed so that said rigid center has the ability to interact with a microswitch driving element, characterized in that in order to reduce dimensions and increase sensitivity by expanding the range of operation in the low pressure zone, the rigid center is fixed on the elastic membrane eccentrically and rests with one edge on the body, and its point of interaction with the drive element of the microswitch is shifted to the edge, op rayuschemus on the case. Sources of information taken into account in the examination 1. Achaykin DI Sensors of control and regulation, Moscow, 1965, p. 622.

2. US Patent No. 4085305, 200-83, 19178.