Fast-breaking arc-protecting and arc-extinguishing surge protection device and application thereof
A surge protection and arc protection technology, applied in the direction of automatic disconnection emergency protection device, emergency protection circuit device, emergency protection circuit device for limiting overcurrent/overvoltage, etc., to prevent arcing.
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Embodiment 1
[0052] A rapid breaking arc-proof and arc-extinguishing type surge protection device, including a housing, an arc-proof component, a voltage sensitive component, an arc-extinguishing element 20, a response switch component and an electrode lead-out pin; the housing includes an inner shell 1 and The outer cover 2; the arc-proof assembly includes an arc-proof ejector 3 and an elastic element 14; the voltage sensitive assembly includes at least one voltage sensitive element 7; the response switch assembly includes a thermal element 13 and a front electrode 7a And the tripping electrode; the tripping electrode is composed of the movable electrode piece 6a, the electrode welding end 6c and the opening position 6b to form an electrical connection; the electrode lead-out pin includes a flexible conductor 12, the first electrode lead-out pin 8 and the second Two electrode lead pins 9; the movable electrode piece 6a of the tripping electrode is fixed on the front end of the arc-proof ca...
Embodiment 2
[0075] Another embodiment of a rapid breaking arc-proof 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:
[0076] The surge protection device does not contain the remote signaling alarm device 4 .
[0077] Both ends of the soft conductor 12 are electrically connected to the movable electrode piece 6 a and the inner end 8 b of the first electrode lead-out pin by means of metal alloy solder spot welding.
[0078] The indicating device 11 is a mechanical indicating device 11 .
[0079] The thermal sensitive element 13 is conductive polymer.
[0080] The voltage sensitive element 7 is a discharge tube type sensitive element.
[0081] The outer end 8a of the first electrode lead pin and the outer end 9a of the second electrode lead pin protrude from the two external pins formed outside the inner shell 1, and connect these two external pins...
Embodiment 3
[0088] Another embodiment of a rapid breaking arc-proof 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:
[0089] The surge protection device does not contain an indicating device 11 and an indicating window 2a, but uses a remote signaling alarm device 4 as a working status indicator;
[0090] The voltage sensitive element 7 is a discharge gap type sensitive element.
[0091] The outer cover 2 is provided with a remote signaling notch 2b, and the remote signaling alarm device 4 is arranged inside the outer cover 2, and its alarm lead-out pin 4a extends out of the outer cover 2. When using a surge protection device in a power supply system, connect the two external pins to the phase line and the neutral line or the ground line respectively. At this time, the switch of the remote signaling alarm device 4 is not pressed by the external str...
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