| 摘要 |
PROBLEM TO BE SOLVED: To prevent overheat of a cord reel.SOLUTION: In the cord reel, a reel plate is provided between a cover and a lid, a pair of spring terminals are provided in a central part of the reel plate, and a power supply cord is wound and accommodated in a power supply cord housing part that is provided in an outer circumference of the central part. A front end of the power supply cord is connected to the spring terminals, a power supply plug protruding from the cover is formed at the other end of the power supply cord, and a terminal fixing plate is provided in the center of the lid. A pair of fixing terminals are provided on an inner surface of the terminal fixing plate, the fixing terminals partially protrude through the terminal fixing plate to an outer surface to form a pair of power supply terminals, and the fixing terminals and the spring terminals are brought into contact at all the time, such that conduction between the power supply plug and the power supply terminals in a rotational state of the reel plate is maintained. A temperature sensor mounting part 40 is provided substantially at the center of the terminal fixing plate 37, a temperature sensor 42 is mounted in the temperature sensor mounting part and if the temperature sensor detects a temperature equal to or higher than a predetermined value, a control part 23 opens a relay 44 to cut off power supply.SELECTED DRAWING: Figure 4 |
