Mechanical switch circuit structure and setting method

Abstract

The invention discloses a mechanical switch circuit structure, and the structure comprises a mechanical switch which comprises an output contact, a power contact, and a grounding contact; a first self-locking unit which is arranged between the power supply input end and the power supply output end; a second self-locking unit which is arranged between the power supply input end and the power supplygrounding end; when the power supply contact is conducted with the output contact, the second self-locking unit opens the conduction state and opens the conduction state of the first self-locking unit, and the first self-locking unit outputs a low level; and when the power supply contact and the output contact are in an open circuit state, the output contact is conducted with the grounding contact, the first self-locking unit outputs a high level, and the second self-locking unit is opened to maintain a conduction state. The invention further discloses a setting method of the mechanical switch circuit. Through the mechanical switch circuit structure and the setting method provided by the invention, the normal operation of the circuit can be ensured under the condition of poor contact of the mechanical switch.

Description

technical field [0001] The invention relates to the field of circuit structures, in particular to a mechanical switch circuit structure and a setting method. Background technique [0002] In the prior art, the mechanical switch has the advantages of simple structure, low price, and low calorific value, so it is widely used in various circuit structures. However, compared with semiconductor switching devices, mechanical switching devices have disadvantages that cannot be ignored. For example, since any mechanical device needs to complete the corresponding work through continuous movement, mechanical devices are prone to wear and metal fatigue. At the same time, since the mechanical switching device is directly exposed to the air, metal elements in the mechanical switching device may be oxidized and cause poor contact of the mechanical switching device. If the mechanical switch device has poor contact, it will have adverse consequences on the normal operation of the equipment...

AI Technical Summary

Problems solved by technology

However, compared with semiconductor switching devices, mechanical switching devices have disadvantages that cannot be ignored. For example, because any mechanical device needs to complete the corresponding work through continuous movement, mechanical devices are prone to wear and metal fatigue.

At the same time, since the mechanical switching device is directly exposed to the air, the metal elements in the mechanical switching device may be oxidized and cause poor contact of the mechanical switching device

If the mechanical switch device has poor contact, it will have adverse consequences on the normal operation of the equipment, which will affect the user experience of using mechanical switch products

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