JPS596205Y2 - Hot air charcoal kotatsu - Google Patents

Description

[Detailed explanation of the idea] This invention relates to the improvement of a small charcoal kotatsu.

Conventional charcoal kotatsu have the advantage of being extremely economical in fuel consumption, but on the other hand, it takes time for the temperature inside the kotatsu to rise, and once the temperature rises, it is impossible to adjust the temperature. There was a drawback that the inside of the kotatsu heated up.

The present invention improves the above-mentioned drawbacks of the conventional charcoal kotatsu, makes it possible to quickly warm the inside of the kotatsu, maintains the temperature constant, and prevents unnecessary consumption of charcoal. The objective is to provide a warm-air charcoal kotatsu that can be easily improved by using a conventional charcoal kotatsu.

The gist is that on the back of the top of the kotatsu tower,
It is attached to the upper part of the outer wall 2 which is shaped by an air circulation wall and has an electric fan 6 attached to the bottom surface, and inside the outer wall 2, asbestos is placed in a box shaped like a shallow box with an opening at the top made of a perforated iron plate. 14, an air intake with an adjustment plate is provided on the upper surface, and a perforated iron plate 20 is provided below the air intake.
A case lid 1 is provided, and the lower part thereof is filled with asbestos 21.
The temperature controller 30, the thermostat 31, the power supply motor 7 of the fan 6, and the power supply are electrically connected to each other. The embodiment of the present invention, which is applied to a fudo charcoal kotatsu, is illustrated in the drawings and will be described as follows.

In Fig. 1, reference numeral 1 denotes a kotatsu tower, which is shaped by an air circulation wall made of wire mesh, punched iron plate, etc. on the back side of its upper part 1a, and has an outer surrounding wall 2 with an opening at the upper part.
Attach the upper edge of the

3 is a support frame for the outer wall.

Further, 4 is a heat reflecting plate. A fan support frame 5 is attached to the lower surface of the outer surrounding wall 2, and servo fans A, C, and 6 are attached within the frame.

7 is an electric motor for operating the fan.

One side of the outer wall 2 is formed with an opening 2a for inserting and removing a charcoal case 11, which will be described later, and a lid 8 is attached to the opening 2a with a hinge 9 so that it can be opened and closed.

Reference numeral 8a designates an operating hole for an operating rod 18 provided in the lid 8, and 10 represents a locking device for the lid 8.

2b is a support portion of the charcoal case 11.

As shown in FIGS. 2 to 4, the charcoal case 11 has a case lid 11 attached to one edge of the case body 11a having an open top surface.
One edge of b is hinged by a hinge 12.

13 is a locking device for the charcoal case. Case body 11
A is shaped like a shallow box with an opening at the top using a perforated iron plate.
The inside of the box is filled with asbestos 14.

The case lid 11b has a box shape with an opening at the bottom, and the upper surface 11b' is provided with an air intake port 15, as shown in FIG. An adjustment plate 16 for adjusting the degree is rotatably attached.

17 is an adjustment hole provided in the adjustment plate 16.

One end of an operating rod 18 is fixed near the periphery of the adjustment plate 16, and protrudes outward from the side surface of the case lid 11b through an operating rod operating hole 19 provided on the upper surface 11b' of the case lid 11b. ing.

A perforated iron plate 20 is fixed below the adjustment plate 16 of the case lid 1lb, and asbestos 21 is filled below the perforated iron plate 20.

30 is a temperature controller attached to the outer wall 2; 31 is a temperature controller attached to the outer wall 2;
Thermostat attached to the kotatsu tower 1, 32 is a cord insertion port attached to the kotatsu tower, 33 is a fixed cord, 34 is one end inserted into the cord insertion hole 32 and connected to the fixed cord 33, and the other Outlet 35 installed at the end
Use a heat-resistant power cord inside the bag as the power connection cord to connect it to the power source.

Thus, until the temperature inside the kotatsu reaches the set temperature of the temperature controller 30, the electric motors 7 of the servo fans A, C, and servo fan 6 are operated, and the servo fans A, C, and servo fan 6 rotate, and the thermostat 31 As a result, the temperature inside the kotatsu changes to temperature controller 3.
When it is sensed that the set temperature of 0 has been reached, the operation of the electric motor 7 is stopped, and therefore
The temperature regulator 30, the thermostat 31, the electric motor 7 of the fan 6, and the power source are interconnected so that the rotation of the fan 6 is also stopped.

The mounting positions of the temperature regulator 30 and the thermostat 31 are not limited to the above-mentioned positions.

In the present invention, the locking device 10 of the lid 8 of the outer wall 2 is removed, the lid 8 is opened, and the charcoal case 11 is taken out.

After removing the locking device 13 of the charcoal case 11, open the case lid 1lb and place the ignited charcoal 40 between the asbestos 14 and 21 as shown in FIG. The operating rod 18 is protruded from the operating hole 8a of the cover 8 of the outer wall 2 to the outside of the outer wall 2, and the cover 8 of the outer wall 2 is opened. Lock the lid.

Next, operate the operating rod 8 to rotate the adjustment plate 16 to open the air intake port 15 of the case lid 11b.Insert one end of the power connection cord 34 into the cord insertion port 32 of the fixed cord 33, and then Plug the outlet 35 into the power source.

Next, the temperature regulator 30 is set to a predetermined temperature.

Until the thermostat 31 senses the above set temperature,
The electric motor 7 operates to rotate the A, C, and servo fans 6, and the air that enters the outer wall from the outer wall 2 flows through the air intake port 15 of the case lid 11b of the charcoal case 11, and the perforated iron plate 20. The charcoal 4 passed through the asbestos 21 and was ignited.
0, the asbestos 14 of the case body 11a is strongly pulled through the through holes of the case body 11a, and forced convection occurs in the air inside the kotatsu, allowing it to quickly rise to a predetermined temperature. .

The thermostat 31 controls the temperature inside the kotatsu, and the temperature controller 3 controls the temperature inside the kotatsu.
When it is sensed that the temperature set to 0 has been reached, the electric motor 7 stops operating, and the rotations of A, C, and servo fans 6 also stop.

The air inside the kotatsu is kept to a minimum, which saves fuel (small charcoal) consumption.

If the adjustment plate 16 is closed and the air intake port 15 is closed when the kotatsu is not in use, fuel can be further saved.

In addition, in the present invention, the adjustment plate is closed and the air intake port 15 is closed.
The servo fans A, C, and servo fan 6 may be operated with the servo fan 6 closed.

As mentioned above, the present invention takes advantage of the advantage of the conventional charcoal kotatsu in that the fuel is extremely cheap, and by adding an extremely simple improvement to this, the amount of electricity used is extremely small, and the kotatsu can still be heated. It is possible to rapidly raise the temperature until the internal temperature reaches a predetermined temperature, and after reaching the predetermined temperature, it is possible to keep the internal temperature constant in an averaged state, and there is no need for charcoal. has the effect of preventing consumption.

Furthermore, since the ignited charcoal is interposed between the asbestos on the case body side and the asbestos on the case lid side, it has the effect of preventing the risk of burning the kotatsu tower or kotatsu futon due to the firepower of the ignited charcoal. be.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of the small charcoal kotatsu of the present invention, Fig. 2 is an enlarged plan view of the small charcoal case, Fig. 3 is a longitudinal cross-sectional view taken along line XX' in Fig. 2, and Fig. 4 is the case lid of the small charcoal case. FIG. 5 is a longitudinal cross-sectional view of the device in an open state, and is a diagram showing the relationship among the fan, temperature regulator, and power connection cord. 1...Kotatsu tower, 1a...Kotatsu tower upper part, 2...Outer wall, 6...Electric fan, 7...Electric motor , 11...
- Charcoal case, 14... Asbestos, 15...
・Air intake port of the charcoal case, 16...adjustment plate,
21... Asbestos, 30... Temperature controller,
31...Thermostat, 32...Cord insertion port, 33...Fixed cord, 34...
...Power connection cord.

Claims (1)

[Scope of utility model registration request] The upper part of the outer wall 2, which is formed by an air circulation wall and has an electric fan 6 attached to the lower surface, is attached to the back of the upper part of the kotatsu tower, and inside the outer wall 2, a perforated iron plate is used to form a shallow box shape with an opening at the top. A case main body 1a filled with asbestos 14 is provided in the box, an air intake with an adjustment plate is provided on the top surface, a perforated iron plate 20 is provided below the air intake, and asbestos 2 is provided below the case body 1a.
The charcoal case 11, which is hinged to the case lid 1b filled with charcoal 1, is removably housed, and the temperature regulator 30, thermostat 31, power supply motor 7 of the fan 6, and power supply are electrically connected to each other. A warm-air charcoal kotatsu characterized by its wired connections.