| 摘要 |
A low voltage heating element for portable tools includes a low voltage, low current light bulb wrapped with a thin layer of metal darkened on its bulb-facing surface. Apertures in the metal layer allow the light from the bulb to be utilized in addition to its heating characteristics. Rechargeable batteries are installed in the handle of the tool to power the light bulb. An electrical jack in the tool housing may be plugged into an external power source for providing power for a greater length of time. A cordless soldering iron includes a low voltage, low current light bulb affixed to the tip of a conventional soldering iron, the conventional heating element having been removed from the housing. The bulb is wrapped with a layer of metal darkened on the bulb-facing surface, and is electrically connected to rechargeable batteries mounted either in the housing of the soldering iron, or within an external pack. A cordless curling iron includes a low voltage, low current light bulb removably mounted within the housing of the curling iron, the conventional heating element having been removed therefrom. The portable tools, soldering iron, hot glue gun and curling iron, are provided with an electrical jack for selectively receiving electric power from a power pack to recharge the batteries therein and to selectively supply power to the low voltage light bulb. The power pack is electrically connected to a conventional 110 V. a.c. power source and transforms this to low voltage, low current D.C. electricity.
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