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Miniature-direct-current-motor-based computer key for five-prevention locking system

A DC motor, computer key technology, applied in circuits, electrical switches, electrical components, etc., can solve problems such as instability and high energy consumption, and achieve the effect of stable performance and low energy consumption

Active Publication Date: 2014-11-05
GUODIAN NANJING AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to avoid the problems of high energy consumption and instability caused by using electromagnets in computer keys to drive locking pins

Method used

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  • Miniature-direct-current-motor-based computer key for five-prevention locking system
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  • Miniature-direct-current-motor-based computer key for five-prevention locking system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The computer key of the five-proof locking system of the present invention includes a single-chip microcomputer, and the micro-DC motor is controlled by a drive circuit. Connection, the spring 24 is sleeved outside the locking pin 23, the baffle plate 21 is arranged on the middle part of the spring 24 to divide the spring into two parts, the baffle plate 21 and the spring 24 are perpendicular. Limit pins 22 are arranged at both ends of the spring 24 . The DC brushless motor is selected from the micro DC motor. In order to be able to apply the DC motor, the structure and circuit of the computer key are improved.

[0019] Since the rotation of the motor will generate vibration, a shock absorbing device is added to the inner wall of the computer key to avoid instability of the computer key caused by vibration.

[0020] If the pull-in electromagnet is 3.3V, the current is at least 100 mA, and the electromagnet needs to overcome its own weight to pull in, so the pull-in...

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PUM

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Abstract

The invention discloses a miniature-direct-current-motor-based computer key for a five-prevention locking system. The computer key comprises a singlechip, and is characterized by further comprising a miniature direct current motor, wherein the miniature direct current motor is controlled by a driving circuit; the driving circuit is connected with the singlechip; a magnet is arranged on and connected to the miniature direct current motor; a locking pin is fixedly connected with magnetic steel; a spring is sleeved outside the locking pin; and a baffle plate is arranged on the middle part of the spring to divide the spring into two parts, and is vertical to the spring. The locking pin is driven by the miniature direct current motor instead of an electromagnet, so that the computer key is low in energy consumption and stable in performance.

Description

technical field [0001] The invention relates to a mechanical part of a computer key in a five-proof locking system of a power system, and belongs to the technical field of power system automatic control. Background technique [0002] Five-proof locking system usually refers to the abbreviation of five anti-error functions for high-voltage switchgear to ensure personal safety, and is one of the important measures for electric power safety. The content of the five defenses includes 1. Preventing mis-dividing and closing the circuit breaker; 2. Preventing the disconnection and closing of the disconnector with load; 3. Preventing the live connection (closing) of the grounding wire (grounding switch); 4. Preventing power transmission with the grounding wire; 5. , Prevent strayed into the electrified interval. [0003] The five-defense system generally includes an anti-misuse expert system, which generally exists in the computer host; it also includes computer keys, comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/20
Inventor 王明毛乃虎沈健
Owner GUODIAN NANJING AUTOMATION