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Contact control mechanism and switch for effective reset

A contact control and switch technology, applied in contact drive mechanisms, contacts, electric switches, etc., can solve problems such as difficulty in rolling, failure to push sliding wheel 102 to reset, failure to automatically reset and close, etc., to ensure effective reset and avoid Effects that cannot be effectively reset

Pending Publication Date: 2019-11-15
XIAMEN HONGFA AUTOMOTIVE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the shape of the particles is irregular and there are many corners or spikes in the fine places, the particles will be difficult to roll between the two sliding surfaces, and then the sliding friction force f of the sliding wheel 102 sliding in the sliding groove 103 will be greatly increased. , when the sliding friction force f is greater than the force F1 generated by the elastic reset of the movable reed 104, the elastic reset of the movable reed 104 alone will not be able to push the sliding wheel 102 to reset, causing the movable contact 105 and the static contact 106 to be suspended No contact, that is, the switch remains disconnected, and there is a hidden danger that it cannot be automatically reset and closed

Method used

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  • Contact control mechanism and switch for effective reset
  • Contact control mechanism and switch for effective reset
  • Contact control mechanism and switch for effective reset

Examples

Experimental program
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Effect test

Embodiment 1

[0037] The effective reset contact control mechanism of the present invention is suitable for switches, circuit breakers, side-mounted contacts and other electrical equipment provided with contact mechanisms and switchable on and off states. This embodiment is implemented in switches and acts on normal The moving reed of the closed contact is taken as an example for detailed description.

[0038] like Figure 5 to Figure 8 As shown, the effective reset contact control mechanism includes a sliding wheel 40, a sliding seat 31, and a sliding control part 21. The sliding seat 31 is provided with a sliding groove 32. The sliding wheel 40 includes a control end 41 and a driving end 42 at both ends. And the cambered surface 43 matched with the sliding groove 32 , the sliding wheel 40 is matched with the sliding groove 32 of the sliding seat 31 through the cambered surface 43 . The sliding control part 21 cooperates with the control end 41 of the sliding wheel 40, and the driving end...

Embodiment 2

[0056] This embodiment provides an effective reset switch based on the contact control mechanism, such as Figure 9 to Figure 11As shown, in this embodiment, two pairs of normally closed contacts and two pairs of normally open contacts are set, and two pairs of normally closed contacts and two pairs of normally open contacts are respectively symmetrically arranged on both sides of the contact control mechanism. The control mechanism controls the forced opening and auxiliary reset of the normally closed contacts. Specifically, it includes housing 30, spring 60, shrapnel 61, normally closed static spring 62, normally closed moving spring 63 (ie moving reed 50), normally closed moving contact 64 (ie moving contact 51), normally closed static contact Point 65 (i.e. static contact 52), normally open static spring 66, normally open moving spring 67, normally open moving contact 68, normally open static contact 69, bracket 70, contact control mechanism, sliding seat 31 and shell 30 a...

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Abstract

The invention relates to a contact control mechanism and a switch for effective reset. The sliding wheel of the contact control mechanism slides along a sliding groove. When the sliding wheel is located at a position corresponding to another working state driven by the sliding wheel, the control end of the sliding wheel is lifted away from a control part to enable the sliding wheel to abut againstthe sliding groove to form a fulcrum. The sliding wheel rotates around the fulcrum to keep away from the sliding groove. Friction force added to the sliding wheel by dust is eliminated. The sliding wheel can be reset only by the elastic resetting force of a contact mechanism. According to the invention, the contact control mechanism is particularly suitable for the situation where the friction force on the sliding wheel is increased due to the accumulation of dust, and the sliding wheel cannot be reset only by the elastic resetting force of the contact mechanism; effective reset of an electrical device is ensured; the sliding wheel provided by the invention is not provided with a fixed fulcrum, and can realize a longer stroke with a smaller volume, which is beneficial to the miniaturization design of a product; and the switch can ensure effective reset, and avoids the hidden danger that the switch cannot be reset effectively due to dust accumulation.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, and more specifically, to an effective reset contact control mechanism and an effective reset switch. Background technique [0002] Switches are widely used in the control circuits of various equipment. In order to improve the disconnection ability of switch contacts, a large number of common electrical mechanical switches use contact control mechanisms to mechanically push the contacts to disconnect, making full use of the large external driving force Forced opening of closed contacts. like Figure 1 to Figure 3 As shown, in the contact control mechanism of the prior art, the push rod 101 drives the sliding wheel 102 to slide in the sliding groove 103, and the moving reed 104 is opened by the sliding wheel 102, so that the moving contact 105 and the static contact 106 are forcibly disconnected; After the push rod 101 releases the sliding wheel 102, the active force F1 generated due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/42
CPCH01H3/42H01H3/40H01H3/14H01H1/20H01H1/2025H01H9/24
Inventor 汤炎青王俊青
Owner XIAMEN HONGFA AUTOMOTIVE ELECTRONICS CO LTD
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