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Electromagnetic elevator limit switch device

A travel switch and electromagnetic technology, which is applied in the field of electromagnetic elevator travel switch devices, can solve problems such as elevator jamming and poor contact of elevator travel switches, achieve reliable closing and disconnection, and overcome poor contact and burn out contacts. Disconnected, novel effect of overall structure

Active Publication Date: 2016-04-13
上海华晟电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method of using the collision of the moving parts of the production machinery to make the contact act to realize the connection or disconnection of the control circuit, so as to achieve a certain control purpose. Electromagnetic elevator travel switch device

Method used

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing, and the structure and principle of this device are very clear to those skilled in the art. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Such as figure 1 As shown, this switch can act immediately to cut off the power supply under abnormal conditions, such as abnormal elevator movement or exceeding the specified travel distance, or drive other components according to design requirements to make the elevator enter a safe state. The device includes a small shell assembly, a shell assembly, a conversion assembly, a closure assembly, and an electromagnet assembly. After the electromagnet assembly is connected, it will transmit the force to the moving contact connecting rod to force the spring, and the spring will connect the moving contact. The moving contact silver...

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Abstract

The invention relates to the field of electric control technology, and particularly to an electromagnetic elevator limit switch device. The electromagnetic elevator limit switch device comprises the components of a small housing assembly, a housing assembly, a conversion assembly, a closing assembly and an electromagnet assembly. After the electromagnet assembly is energized, the electromagnet assembly transmits an acting force to a dynamic contact connecting rod for making a spring bear a force. The spring makes a dynamic contact silver nail on a dynamic contact connecting rod switch between an off state and an on state on a static contact silver nail on a contact pole, thereby realizing small stroke, high positioning precision and high control flexibility. The electromagnetic elevator limit switch device is advantageous in that the electromagnetic elevator limit switch device is composed of the small housing assembly, the housing assembly, the conversion assembly, the closing assembly and the electromagnet assembly; when the swing rod bears a force with a preset magnitude, the swing rod immediately drives the conversion assembly for switching between the off state and the on state on the small housing assembly of the switch; the housing assembly and the closing assembly realize necessary protection on the switch, thereby obtaining controllable integral safety, higher reliability in switching-on and switching-off, and improving closing performance and insulating performance.

Description

[technical field] [0001] The invention relates to the technical field of electrical control, in particular to an electromagnetic elevator travel switch device widely used in various elevator safety components to realize sequence control, positioning control and position state detection. [Background technique] [0002] Travel switch is a kind of position switch (also known as limit switch). It is a commonly used small current master electrical appliance. It uses the collision of production mechanical moving parts to make its contacts move to realize the connection or break of the control circuit. Certain control purposes. Usually, this type of switch is used to limit the position or stroke of the mechanical movement, so that the moving machinery will automatically stop, reverse movement, variable speed movement or automatic reciprocating movement according to a certain position or stroke. [0003] The travel switch in the elevator is mainly used for the control and signal pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/16H01H3/28H01H3/32H01H1/50
CPCH01H1/50H01H3/16H01H3/28H01H3/32H01H2003/326
Inventor 姚亦斌赵财芝
Owner 上海华晟电器有限公司
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