Contact switch structure

A contact switch and switch technology, applied in the direction of contact engagement, etc., can solve the problems of difficult to design high-voltage, small-volume contact switch products, etc., and meet the requirements of reducing the reset elasticity, shrinking the volume, and high isolation voltage Effect

Inactive Publication Date: 2012-05-09
刘伟亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to design high-voltage, small-volu

Method used

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  • Contact switch structure
  • Contact switch structure
  • Contact switch structure

Examples

Experimental program
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Effect test

Embodiment 1

[0014] figure 1 The described SPST contact switch structure includes: a static contact terminal 1, a moving contact 2, a static contact 3, a moving contact terminal 4, and an insulating partition 5. The insulating partition is integrated with a rotating shaft. When the switch performs on-off and off-function switching, the mechanical force pulls the contact end of the movable contact terminal, and at the same time transmits the force to the rotating shaft. Driven by the rotating shaft, the insulating partition acts as a bob up and down. When the switch is in the closed state, the insulating partition swings to the bottom of the contacts, and when the switch is in the open state, the insulating partition is inserted between the moving and static contacts.

Embodiment 2

[0016] figure 2 Described is a TPST contact switch structure including: static contact terminal 1, moving contact 2, static contact 3, moving contact terminal 4, and insulating partition 5. Two insulating partitions are connected symmetrically with a rotating shaft. The rotating shaft is set between the two sets of contact terminals. Driven to the rotating shaft, the insulating partition is driven by the rotating shaft to make a 90-degree step-by-step rotation. When the switch is in the closed state, the insulating partition is turned to the neutral position between the two groups of contact terminals. When the switch is in the off state, the insulating partition is inserted between the corresponding moving and static contacts.

Embodiment 3

[0018] image 3 The described three pole single throw contact switch structure includes: static contact terminal 1 , moving contact 2 , static contact 3 , moving contact terminal 4 , and insulating partition 5 . Six insulating partitions are integrated with a hollow rotating shaft, and one end of the hollow rotating shaft is provided with helical teeth for direct motion and variable rotation. When the switch performs the function of switching on and off, the mechanical force pulls the contact end of the moving contact terminal, and at the same time Through the transmission of force to the rotating shaft, the insulating partition is driven by the rotating shaft to make a stepwise rotation of 30 degrees. When the switch is in the closed state, the insulating partition is turned to the neutral position between the two groups of contact terminals. When the switch is in the off state, the insulating partition is inserted between the corresponding moving and static contacts.

[001...

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Abstract

The invention relates to a contact switch structure. A movable contact is pulled away from a fixed contact by a mechanical force in the process of converting an on state to an off state of a switch, meanwhile, an insulating baffle plate is inserted into a corresponding gap between the fixed contact and the movable contact through rotation or movement; after the mechanical force disappears, the movable contact approaches the fixed contact under the action of a reset force; as the insulating baffle plate stops between the fixed contact and the movable contact at the time, the movable contact cannot be in contact with the fixed contact due to the support of the insulating baffle plate, the switch is in the off state, the movable contact and the fixed contact are separated by the insulating baffle plate; a distance between the contacts is the insulating baffle plate thickness of 0.3-0.8mm, therefore, a small switch travel can be designed, and the size of the switch can be also reduced. As an insulating plate for completing the fixed contact is adopted, the isolation voltage of the switch contacts is higher. An action force of pulling away the movable contact is not applied when the switch is in the off state, therefore, the requirement on reset elasticity is reduced.

Description

technical field [0001] The present invention relates to a contact switch structure, more specifically, it relates to a contact switch structure used for manufacturing electrical switches and relays. Background technique [0002] At present, electrical products such as switches, relays and contactors with contact structure, the disconnected state is to pull the moving contact a certain distance away from the static contact, in order to solve the problem of the electric field between the static contact and the moving contact when static The arc phenomenon, the distance between the contacts increases with the increase of the working voltage, which causes the volume of the contact switch to increase. Therefore, it is difficult to design a high-voltage, small-volume contact switch product with this contact switch structure. Contents of the invention [0003] The problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a contact...

Claims

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Application Information

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IPC IPC(8): H01H1/12
Inventor 刘伟亮
Owner 刘伟亮
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