SU983547A1

SU983547A1 - Electromeasuring instrument

Info

Publication number: SU983547A1
Application number: SU802964391A
Authority: SU
Inventors: Виктор Иванович Ефименко; Анатолий Иванович Якимчук
Original assignee: Краснодарский Ордена Трудового Красного Знамени Завод Электроизмерительных Приборов
Priority date: 1980-07-23
Filing date: 1980-07-23
Publication date: 1982-12-23

Description

(54)ЭЛЕКТРОИЗМЕРИТЕЛЬНЫЙ ПРИБОР(54) ELECTRIC MEASURING DEVICE

Изобретение относитс к электроизмерительной технике, в частности к электромеханическим измерительным приборс1М с подвижной системой на раст жках .The invention relates to electrical measuring equipment, in particular to an electromechanical measuring device with a movable system on stretching.

Известны конструкции электроизмерительных приборов, в которых узел креплени подвижной рамки с внешней цепью выполнен в виде раст жки амортизационной пружины и контактного ввода 1.Designs of electrical measuring devices are known in which the mount of the moving frame with the external circuit is made in the form of an extension of the shock-absorbing spring and the contact input 1.

Недостаток этих конструкций состоит в том, что дл включени прибора в измерительную цепь необходимо иметь дополнительные элементы контактного соединени внутри и вне корпуса прибора . Это усложн ет технологию сборки , снижает надежность прибора.The disadvantage of these structures is that in order to connect the device to the measuring circuit, it is necessary to have additional elements of the contact connection inside and outside the device case. This complicates the assembly technology, reduces the reliability of the device.

Наиболее близким техническим решением к изобретению вл етс электроизмерительный прибор, содержащий корпус , подвижную систему на раст жках, амортизсщионные пружины пластинчатой . формы с прорезью, к внутренней кромке которой прикреплены раст жки 2.The closest technical solution to the invention is an electrical measuring instrument comprising a housing, a movable system on tension, shock absorbing plate springs. forms with a slit, to the inner edge of which the extensions 2 are attached.

Недостаток этих приборов заключаетс также в необходимости соединени внутренней схемы прибора с изме-. рительной цепью вне корпуса прибора через дополнительные элементы контактного .соединени , т.е. имеетс многоэлементна св зь между амортизационными пружинами, подвижной рамкой и внешней цепью.The disadvantage of these devices is also the need to connect the internal circuitry of the device with the measurement. the external circuit of the device through the additional elements of the contact. there is a multi-element relationship between the damping springs, the moving frame and the external circuit.

Такое выполнение св зи внутренней схемы прибора с внешней цепью создает некоторые трудности при сборке, требует дополнительного количества паек, что в конечйом итоге отрицатель10 но сказываетс на надежности прибора.Such an implementation of the connection between the internal circuitry of the device and the external circuit creates some difficulties during assembly, requires an additional number of rations, which ultimately negatively affects the reliability of the device.

Целью изобретени - вл етс упрощение конструкции и повышение надежности прибора.The aim of the invention is to simplify the design and increase the reliability of the device.

Поставленна цель достигаетс тем, The goal is achieved by

15 что в электроизмерительном приборе, содержащем корпус, подвижную систему на раст жках, амортизационные пружины пластинчатой формы с прорезью, к 2Q внутренней кромке которой прикреплены раст жкиf рассто ние между внешней кромкойамортизационной пружины и осью подвижной системы с одной стороны больше, чем рассто ние между осью подвижной системы и корпусом.15 that in an electrical measuring instrument comprising a housing, a movable system on extensions, depreciation springs of a lamellar form with a slot, to 2Q the inner edge of which is stretched, the distance between the outer edge of the amortization spring and the axis of the movable system on one side is greater than the distance between the axis movable system and housing.

2525

На чертеже изображен электроизмерительный прибор, общий вид.The drawing shows the electrical measuring device, a general view.

Подвижна система прибора, содержаща рамку 1,поворотную ось 2 и указатель 3, укреплена на раст жках 4 The mobile system of the device, containing frame 1, pivot axis 2 and pointer 3, is fixed on tension 4

Claims

30 to the damping springs 6 and 7, which are mounted on the fixed elements 8 and 9, enclosed in the housing 10 of the device. The flat cushion springs 6 and 7 are made with extensions 11 and 12 and partially extend beyond the limits of the housing 10 as external contacts for inclusion in the measurement circuit. The device works as follows. The electrical signal through the extension 11 and 12 of the damping springs b and 7 enters the device, then through the contacting with them stretches 4 and 5 - into the frame 1, which creates an electromagnetic field that interacts with the field of the permanent magnet; a torque, proportional to the electrical signal, occurs, and the ratio of torque to the opposing moment, which is created by stretching, determines the position of the moving system and the pointer 3 attached to it, according to which the instrument reads. The proposed technical solution makes it possible to reduce the number of parts included in the contact system, namely the supply conductors and connector elements, four soldering of the supply conductors to the contact elements and damping springs, thereby simplifying the design of the device as a whole, manufacturing and assembly, reliability of the device. In cases where the stiffness of the current-carrying part extending beyond the casing is greater than / than the spring part, the damping spring is made of different materials of different thickness. The proposed technical solution can be used in electrical measuring instruments with a moving system on tension, in which the measured electrical value is converted into mechanical movement of the moving frame, mainly in indicators that do not have a corrector. The invention The electrical measuring device, comprising a housing, a movable system on extensions, shock-absorbing springs of a lamellar form with a slit, to the inner edge of which are attached stretches, differing in that, in order to simplify the design and increase reliability, the distance between the outer edge of the damping spring. and the axis of the movable system on the one hand is greater than the distance between the axis of the movable system and the housing. I Sources of information taken into account in the examination 1. Arutyunov V.O. Atlas design of electrical measuring devices for direct evaluation. Gosenergoizdat, 1956, p. 193, 199.

2. .M-370 type indicator.

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