Fast breaking arc-preventing and arc-extinguishing surge protection device
A technology of surge protection and arc protection, which is applied in the direction of automatic disconnection emergency protection devices, emergency protection circuit devices, circuit devices, etc., to achieve the effect of preventing arc generation
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Embodiment 1
[0047] A rapid-breaking arc prevention and arc extinguishing surge protection device, comprising a shell, an arc prevention component, a voltage sensitive component, an arc extinguishing element 20, a response switch component and an electrode lead-out pin; the shell includes an inner shell 1 and Outer cover 2; the arc prevention assembly includes an arc prevention catapult 3 and an elastic element 14; the voltage sensitive assembly includes at least one voltage sensitive element 7; the response switch assembly includes a heat sensitive element 13, a front electrode 7a And a trip electrode; the trip electrode is formed by the movable electrode sheet 6a, the electrode welding end 6c and the breaking position 6b to form an electrical connection; the electrode lead-out foot includes a flexible conductor 12, a first electrode lead-out foot 8 and a first Two electrode leads 9; the movable electrode sheet 6a of the trip electrode is fixed at the front end of the arc-proof catapult 3; ...
Embodiment 2
[0066] Another embodiment of the rapid breaking arc prevention and arc extinguishing surge protection device of the present invention. This embodiment has a similar structure and usage to most of the components in Embodiment 1. The main differences are:
[0067] The surge protection device does not contain the remote signal alarm device 4; the two ends of the soft conductor 12 are respectively formed with the movable electrode sheet 6a and the inner end 8b of the first electrode lead-out leg by means of spot welding with metal alloy solder. Connection; the indicating device 11 is a mechanical indicating device 11; the heat sensitive element 13 is a conductive polymer; the voltage sensitive element 7 is a discharge tube type sensitive element; the first electrode leads to the outer end 8a The outer ends 9a of the lead-out pins of the second electrode and the second electrode extend out of the two external pins formed outside the inner shell 1, and the two external pins are connect...
Embodiment 3
[0070] Another embodiment of the rapid breaking arc prevention and arc extinguishing surge protection device of the present invention. This embodiment has a similar structure and usage to most of the components in Embodiment 1. The main differences are:
[0071] The surge protection device does not contain the indicating device 11 and the indicating window 2a, but uses the remote signal warning device 4 as the working status indicator;
[0072] The voltage sensitive element 7 is a discharge gap type sensitive element.
[0073] The outer cover 2 is provided with a remote signal notch 2b, the remote signal alarm device 4 is arranged in the outer cover 2, and its alarm lead-out foot 4a extends out of the outer cover 2. When using a surge protection device in a power system, connect the two external pins to the phase line and the neutral line or the ground line. At this time, the switch of the remote signal alarm device 4 is not compressed by external stress, that is, The normal workin...
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