JPS5810490Y2 - hair dryer heater - Google Patents

Description

[Detailed description of the invention] This invention is a heater board that forms a half-wave rectifier in a cross shape when a half-wave rectifier is incorporated into the heater part for the purpose of adding a function for switching the heater capacity to a conventional hair dryer. By attaching it to one corner to form a triangle with the heater board, the heat generated in the half-wave rectifier is cooled by air from the motor, protecting the half-wave rectifier, and also reinforcing the cross shape of the heater board. It is something.

One embodiment of the present invention will be explained based on FIGS. 1 to 5. Reference numerals ``la'' and ``lb'' indicate main body cases in which a motor 5 and a heater section 6 are built in, to which a fan 4 is attached, and 2 a and 2 b indicate main body cases la and lb. The air outlets 3a and 3b have a built-in power switch 19, the main body handle attached to the main body cases la and lb, and the heater part 6 have a coiled heater wire 8 wound around the outer periphery of the cross-shaped parts 7a and 7b. A thermostat 14 for preventing excessive temperature rise is mounted on the heater board 7b on the inside of the heater wire 8, and a heater cover 9 made of an aluminum plate surrounds the outside of the heater wire 8.

Assuming that the air is blown from the motor 5 as arrow A, the lowering resistor 10 of the motor 5 is inserted into the hole 18 of the heater board 7a in the direction of the arrow A of the cross-shaped heater board, and the lead wire 11 is inserted into the hole 18 of the heater board 7a.
The temperature fuse 12 is fixed to the short circuit plate 15 via the eyelet 17, and the temperature fuse 12 is welded to the short circuit plate 15 at one corner of the heater boards 7 a and 7 b so as to form a triangle with the heater boards 7 a and 7 b. wave rectifier 13
The heater boards 7a and 7 are placed in one corner facing the temperature fuse 12.
b and are fixed via terminals 16 so as to form a triangle.

The shorting plate 15 is fixed to the back side of the heater board 7b on which the lowering resistor 10 of the motor 5 is attached, and is electrically connected to the lowering resistor 10, the thermostat 14, and the heater wire 8.
are connected to the temperature fuse 12 in parallel.

20 is a changeover switch for changing over the heater capacity.

The insertion circuit of the half-wave rectifier 13 of the present invention will be explained with reference to FIG. 5. The power supply leads to the temperature fuse 12, and the drop resistor 10 connects to the motor 6 via the shorting plate 15 to which the temperature fuse 12 is attached. It is connected in parallel to the thermostat 14, the heater wire 8, and the half-wave rectifier 13.

Then, the heater wire 8 and the lead wire of the half-wave rectifier 13 pass through the capacity changeover switch 20 and enter the power switch 19.

On the other hand, the motor lead wire directly enters the power switch 19.

As described above, according to the present invention, by installing the half-wave rectifier at the - corner of the heater board so as to form a triangle with the heater board,
The heat generated in the half-wave rectifier is cooled by air blowing from the motor,
After protecting the half-wave rectifier and wrapping a coiled heater wire around the outer periphery of the heater board, reinforcement is also performed to maintain the cross shape of the heater board.

[Brief explanation of drawings]

Figure 1 is an exploded view of a product to which the present invention is applied, Figure 2 is a plan view of a heater for a hair dryer showing an embodiment of the present invention, Figure 3 is a front view of Figure 2, and Figure 4. is a right side view of FIG. 2, FIG. 5 is a half-wave rectifier insertion circuit diagram of the present invention, and FIG. 6 is a circuit diagram of a conventional example. la, lb...Body case, 4...Fan, 5...Motor, 6...Heater part, 7a, 7b...Heater Board, 8...
Heater wire, 13...half wave rectifier.

Claims (1)

[Scope of utility model registration request] The main body case has a built-in motor with a fan, a heater section, etc., the heater section is constructed by coiling heater wires on a cross-shaped heater board, and a rectifier is installed to be inserted into the circuit of the heater section or motor. A heater for a hair dryer, characterized in that the rectifier is attached to one corner of the heater substrate so as to form a triangular shape with the heater substrate.