| 摘要 |
An electrical switch comprises a housing in which at least two power source terminals and a conductive piece are disposed such that the conductive piece is fastened at one end with one of the two power source terminals for electrically conducting or interrupting the two power source terminals. The conductive piece is connected with a link structure by which an external force causes the conductive piece to make contact with or separate from other one of the two power source terminals. A spring piece is fastened at one end with the housing and at other end with the link structure. The spring piece enables the conductive piece to jump so as to separate from other one of the two power source terminals at the time when the conductive piece is overheated. The electrical switch further comprises an adjustment device for providing with a predetermined force against the conductive piece under the circumstance that the conductive piece is electrically connected with the power source terminals such that the critical overheated temperature of the conductive piece can be set.
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