Surge protection device (SPD) with double-trip mechanism

A surge protection device (SPD) with a double-trip mechanism, comprising a frame, an electrode, and a reed, wherein the electrode is provided on the frame;

• the reed corresponds to the electrode and is welded with the electrode through a low-temperature alloy;
• and the SPD further comprises a first trip structure and a second trip structure on the frame;
• the first trip structure comprises a slider and a first tension spring;
• and the first tension spring comprises a first end connected to the frame, and a second end connected to the slider;
• the second trip structure comprises a second tension spring;
• and the second tension spring comprises a first end connected to the frame, and a second end connected to the reed;
• and
• when the SPD is triggered, the first tension spring drives the slider to move to the electrode and be located between the electrode and the reed, and the second tension spring drives the reed to move toward a direction away from the electrode.