JPS58479Y2 - futon dryer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a futon dryer, and is particularly aimed at ensuring safety when the temperature is abnormally high when drying futons.

The electrical circuit in a conventional futon dryer is shown in Figure 2.

That is, 1 is an electric timer, 2 is a blower energized by the timer 1, and has a temperature fuse 3 inside.

4 is the hot air/cold air selection switch, 5 is Seleno I
- The heater energized by the switch 4, 6 is a thermostat that operates by sensing the temperature of the hot air from the heater 5, and another temperature fuse 7 is connected in series with this thermostat 6 to prevent the heater 5 from rising abnormally. At certain times, the entire circuit of the futon dryer is shut off, but this requires a separate temperature fuse in addition to the temperature fuse built into the blower1, which is not very desirable.

This invention uses temperature fuses built into the blower to cut off the entire circuit in the event of abnormally high temperatures, thereby reducing the number of temperature fuses.

Hereinafter, the present invention will be described in detail according to an illustrated embodiment.

The same parts as in FIG. 2 are denoted by the same reference numerals.

FIG. 1 is an electrical circuit diagram of the futon dryer of the present invention.

In FIG. 1, 1 is an electric timer, 2 is a blower energized by the timer, and a temperature fuse 3 is provided inside the blower 2. As shown in FIG.

4 is a select switch that switches between hot air and cold air;
The heaters 5 which are energized by the seleno 1 to the switch 4 are connected in series.

A thermostat 6 operates by sensing the temperature of the hot air produced by the heater 5, and the thermostat 6 and a temperature fuse 3 provided inside the blower 2 are connected in series to the heater 5 and the blower 2.

If there is an abnormality when the futon dryer is operating, that is, when the blower 2 locks and stops, or when there is a rare short circuit, the blower 2
temperature rises abnormally and shuts off the temperature fuse 3.

Also, if the heater 5 heats up abnormally, the thermostat 1-
6 operates and cuts off all circuits.

Further, even if the thermostat 6 does not operate due to welded contacts, etc., the temperature fuse 3 is cut off to raise the temperature inside the futon dryer main body.

As mentioned above, the futon dryer of the present invention connects the thermostat and the temperature fuse in the blower in series with the heater and the blower, so that the temperature fuse and thermostat are connected in series to cut off the entire circuit. When either one works, it is possible to shut off the entire circuit, which is not only extremely safe, but it also eliminates the need for one temperature fuse compared to conventional systems, making it cheaper and of very high practical value. It is.

[Brief explanation of the drawing]

Figure 1 is an electrical circuit diagram of an embodiment of the futon dryer of the present invention.
FIG. 2 is an electrical circuit diagram of a conventional futon dryer. 2...Blower, 3...Temperature fuse,
5... Heater, 6 is thermostat.

Claims (1)

[Scope of utility model registration request] A blower with a built-in temperature fuse, a heater, and a thermostat that operates by sensing changes in the temperature of the hot air, characterized in that a series circuit of the temperature fuse and thermostat is inserted into the power supply circuit of the blower and heater. Futon dryer.