SU533995A1

SU533995A1 - Switch

Info

Publication number: SU533995A1
Application number: SU1981305A
Authority: SU
Inventors: Вадим Николаевич Шоффа; Юрий Сергеевич Коробков; Борис Михайлович Рассадин; Владимир Кузьмич Шибанов
Priority date: 1973-12-29
Filing date: 1973-12-29
Publication date: 1976-10-30

Description

1one

Изобретение относитс к элементам управлени , предназначенным дл коммутации электрических цепей, и может быть использовано в системах автоматики, контрольно-измерительной аппаратуре и в других област х техники.The invention relates to control elements intended for switching electrical circuits, and can be used in automation systems, test equipment and in other fields of technology.

Известно коммутационное устройство, содержащее магнитоуправл емые контакты, элементы пам ти 1. Однако в этом устройстве при увеличении скорости перемещени возбуждающего устройства увеличиваетс его объем и вес. Кроме того, устройство не обладает виброударостойкостью.A switching device is known which contains magnetically controlled contacts, memory elements 1. However, in this device, as the speed of the driving device increases, its volume and weight increase. In addition, the device does not have vibration impact resistance.

Более близкиА1 к изобретению по технической сущности вл етс выключатель 2, содержащий магнитоуправл емые контакты, возбуждающее устройство, состо щее по крайней мере из одного магнита, и узел относительного перемещени возбуждающего устройства и магнитоуправл емых контактов. Относительное перемещение возбуждающего устройства и магнитоуправл емых контактов вызывает срабатывание последних. Такого рода выключатели используютс как кнопки, новоротные выключатели, микровыключатели, счетчики перемещающихс объектов и т. д. Однако в этих выключател х, когда требуетс фиксирование прохождени мимо выключател объекта, перемещающегос с больщой скоростью , из-за недостаточного быстродействи More closely, A1 to the invention in its technical essence is a switch 2 comprising magnetically controlled contacts, an excitation device consisting of at least one magnet, and a unit for the relative movement of the excitation device and magnetically controlled contacts. Relative movement of the exciter and magnetically controlled contacts triggers the latter. These kind of switches are used as buttons, rotary switches, microswitches, counters of moving objects, etc. However, in these switches, when it is necessary to fix the passage of objects passing by at high speeds past the switch, due to insufficient speed

магнитоуправл емых контактов необходимо увеличивать размер (а соответственно и вес) возбуждающего устройства (например, посто нного магнита) в направлении перемещени magnetically controlled contacts, it is necessary to increase the size (and, accordingly, the weight) of the excitation device (for example, a permanent magnet) in the direction of movement

объекта. В р де случаев оказываетс недостаточной также виброударостойкость магнитоуправл емых контактов выключател в их разомкнутом положении. Дл повыщени длительности нахождени object. In a number of cases, the vibration impact resistance of the magnetic contacts of the switch in their open position is also insufficient. To increase the duration of a stay

магнитоуправл емых контактов в состо нии «сработано в известных выключател х используютс дополнительные пол ризующие магннты, а применение пол ризующих магнитов из-за предварительного возбуждени имиThe magnetically controlled contacts in the state "operated" in known switches use additional polarizing magnets, and the use of polarizing magnets due to their preliminary excitation

магнитоуправл емых контактов снижает величину напр жени пробо и виброударостойкость последних.Magnetically controlled contacts reduce the value of the breakdown voltage and the vibration and impact resistance of the latter.

Предлагаемый выключатель не имеет указанных недостатков. Он обеспечивает поThe proposed switch does not have these disadvantages. It provides by

сравнению с известными конструкци ми уменьшение объема и веса возбуждающего устройства при увеличении относительной скорости перемещени возбуждающего устройства и магнитоуправл емых контактов, а также обладает повышенной виброударостойкостью.in comparison with the known constructions, a decrease in the volume and weight of the excitation device with an increase in the relative speed of movement of the excitation device and magnetically controlled contacts, and also has an increased vibration and vibration resistance.

Claims

This is achieved by the fact that in it, parallel to the magnetically controlled contacts, magnetic memory elements of a material with an average magnetic rigidity are installed. FIG. 1 schematically shows a switch in which the elements of magnetic memory are made in the form of a C-shaped bracket; in fig. 2 is a circuit breaker circuit in which the magnetic memory element is in the form of a strip; in fig. 3 is a circuit diagram of a switch in which the magnetic memory element is designed as a part of a cylinder enclosing a magnetically controlled contact; in fig. 4 is a circuit diagram of a switch in which the elements of magnetic memory in the form of strips are connected to ferromagnetic pole tips with magnetically controlled contacts made with free ends between which the exciter device moves. In the rotary switch schematically depicted in FIG. 1, parallel to the magnetically controlled contacts 1, the axes of which are located along the cylinder-forming elements, magnetic elements 2 are installed, made of a material with medium magnetic rigidity and having a C-shape. The magnetic memory elements 2 are controlled by an excitation device consisting of magnets 3 and 4 and moved by means of the displacement unit 5. When the magnet 3 passes by, some of the magnetic memory elements 2 pass through the latter being magnetized during the microsecond range. Being magnetized and having magnetic poles of different polarity (and S) at their ends, the magnetic memory element 2 closes a magnetically controlled contact 1 located next to it. When the magnet 4 passes by, some of the magnetic memory elements 2 pass through and the latter magnetizes at their ends, the magnetic poles of the same polarity (N). At the inner overlapping ends of the contact cores of the corresponding magnetically controlled contact 1, magnetic poles of the same polarity also appear, and the magnetically controlled contact opens. Since the magnetic poles of the same polarity remain at the inner ends of the contact cores of the magnetically controlled contact after it is opened, the vibration impact resistance in the open state and the magnitude of the breakdown voltage of this magnetic contact increase. Since the magnetic memory elements 2 re-magnetize in a very short time (microsecond range), the magnets 3 and 4, respectively, at the moment of closing and opening of the magnetically controlled contacts 1 controlled by them can be far from these magnetic contacts, which makes it possible at significant speed x moving the excitation device to reduce the size of the permanent magnets. If only the magnet 3 is used in the excitation device, the magnetically controlled contacts 1 can be returned to the initial one (open th) state by special excitation windings disposable, e.g., magnetic memory elements

2. In the switches of FIG. 2 and 4, the magnetic memory elements are in the form of a strip, and in the switch in FIG. 3 - as part of a cylinder, covering a magnetically controlled contact. In the switch in FIG. 4 for organizing the magnetic field of the permanent magnets 3 and 4 and the magnetic memory elements 2 are connected to the magnetically controlled contact 1 by ferromagnetic pole tips 6 between which the permanent magnets 3 and 4 are moved. The principle of operation of the switches shown in FIG. 2, 3 and 4, does not differ from the principle of operation of the described switch. The considered switches (Figs. 1-4) are examples only. They do not cover the whole possible variety of the design and mutual arrangement of their constituent elements (magnetic contacts, magnetic memory elements, exciter, pole pieces and displacement device of the exciter) and, thus, do not limit the scope of the invention, the essence of which is set forth in claims. The invention includes a switch containing magnetically controlled contacts, an excitation device consisting of on and off magnets, and a unit for relative displacement of the excitation device and magnetically controlled contacts, characterized in that in order to reduce the volume and weight of the excitation device during its increased speeds and increasing the vibration impact resistance, parallel to the magnetically controlled contacts, magnetic memory elements of a material with an average magnetic rigidity are installed.

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