Overheating power-off method of switch and electrical equipment

Abstract

The invention provides an overheating power-off method for a switch and electrical equipment, which includes the following steps: making a movable conductive member bear a first moment and a second moment opposite to each other; when the first moment is greater than the second moment , will make the movable conductive part conduct the first conductive part and the second conductive part to form a path state; when an overheating damage part is destroyed, the first torque will be smaller than the second torque, and the active conductive By helping the second moment to leave the second conductive element, the first conductive element and the second conductive element form an open circuit state.

Description

technical field [0001] The present invention relates to an overheating power-off method for switches or electrical equipment, in particular to a power-off method that is different from fuses and bimetal strips. The overheating damage parts of the present invention do not rely on the passage of current to perform damage. Instead, the method of destroying and de-energizing the switch relies on the transfer of thermal energy. Background technique [0002] The existing rocker switch is to control the switch to pivot reciprocally in a certain angle range to control the access and disconnection of the switch. For example, China Taiwan Patent No. 560690 "Spark shielding structure of switch", when the switch pivots, use Locating features position it in a first position or a second position to create a path or break. [0003] In China Taiwan Patent No. 321352 "On-Line Switch Structure Improvement" discloses a switch structure with a fuse, but the fuse is located in the path of the l...

AI Technical Summary

Problems solved by technology

[0007] 1. The metal pins of the plug are severely oxidized, and the metal pins are covered with oxides. When the plug is inserted into the socket, the oxide with poor conductivity will increase the resistance and the socket will overheat.

[0008] 2. When the metal pin of the plug is inserted into the socket, the insertion is not complete, resulting in only partial contact, and the too small contact area causes the socket to overheat

[0009] 3. The metal pins of the plug are deformed or worn, resulting in incomplete contact when inserted into the socket, and too small contact area causes the socket to overheat

[0010] 4. The metal pins of the plug or the metal sheet of the socket are stained with foreign matter, such as dust or dirt, which makes the conductivity poor, so the resistance becomes larger and overheats

[0013] Since there are many situations that cause the socket to overheat, and the distance between the socket and the bimetal of the overload protection switch will cause a huge temperature difference, in order to effectively achieve overheat protection, an overload protection should be set on each socket of the extension cord socket. Protection switch, but the price of the bimetal type overload protection switch is relatively high. If it is installed on each socket of the extension cord socket, the price will rise sharply, which is not conducive to popularization.

Images