Self-early warning type anti-collision ammeter

Abstract

The invention discloses a self-early-warning type anti-collision ammeter, and belongs to the technical field of ammeters, and the ammeter can achieve an anti-collision effect by adding anti-collision strips at the periphery, preliminarily achieves an elastic buffering effect after the anti-collision strips at the outer side are collided, concentrates impact force, transmits the impact force to a force collection column, and achieves the anti-collision effect. The energy absorption bag is extruded to achieve secondary buffering, external impact force can be effectively counteracted, vibration is not prone to being caused to the ampere meter body, meanwhile, the spontaneous heating phenomenon is triggered in the extrusion process of the force collection column, heat is transmitted to the thermal separation rod to promote the thermal separation rod to conduct separation action, and the safety of the ampere meter is improved. And then the static magnetic ring is used for forcing the early warning film to expand outwards to carry out early warning and prompt an impact part by virtue of the magnetic repulsive action of the static magnetic ring on the early warning film, and meanwhile, the expanded early warning film can be additionally provided with a buffer barrier when facing the same impact, so that the anti-collision capability of the ammeter is improved.

Description

technical field [0001] The invention relates to the technical field of ammeters, in particular to a self-warning anti-collision ammeter. Background technique [0002] Ammeter refers to the instrument used to measure the current in AC and DC circuits. In the circuit diagram, the symbol for the ammeter is "circle A". The current value is in "A" or "A" as the standard unit. [0003] The ammeter is made according to the action of the current-carrying conductor in the magnetic field by the magnetic field force. There is a permanent magnet inside the ammeter, which generates a magnetic field between the poles. There is a coil in the magnetic field. There is a hairspring spring at both ends of the coil. Each spring is connected to a terminal of the ammeter. The spring and the coil are connected by a rotating shaft. On the front of the ammeter, there is a pointer. When a current flows, the current passes through the magnetic field along the spring and the rotating shaft, and the...

AI Technical Summary

Problems solved by technology

[0004] Because the ammeter is a precision measuring instrument with many parts inside, it is easy to be damaged after being hit. In the prior art, most of the ammeters can only rely on the shell to prevent the impact. Even if it will not break, the larger vibration will not Will interfere with the normal use of the ammeter

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