JPH0213886Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention makes the heater unit much thinner than the conventional one, and not only can warm air be supplied comfortably, but also the heat of the heater is transmitted to the decorative board side. This invention relates to a warm air type electric kotatsu that can prevent

[Conventional technology]

An example of a conventional heater unit designed to reduce the thickness of the heater unit is disclosed in Japanese Patent Application Laid-Open No. 59-66653. In the device shown in this patent application, the fan 1 is located inside the heater 2 and outside the reflecting plate 3, as shown in FIG.

[Problem that the invention attempts to solve]

In such a device, since the fan 1 is located outside the reflector plate 3, the heater unit must be thick, and the rotation of the fan may cause hot air to be supplied as shown by the solid line arrow. I don't know, but in places where there is no heater 2, instead of cold air being supplied, warm air and cold air are mixed and supplied, so it is not necessarily comfortable.

[Means for solving problems]

This proposal was devised to solve the above problems.According to this proposal, a heat shield plate is provided close to the decorative board, and a heat shield plate is provided facing the heat shield plate, and the peripheral portion and Each has multiple holes near the center,
A reflector plate having elongated holes facing and parallel to each other, a motor provided on the front side of the central part of the reflector plate, a rod-shaped heater provided along each of the elongated holes, and the motor. The main feature is that the fan rotates and is provided between a heat shield plate and a reflector plate so as to cover each of the heaters.

[Effect]

Since the present invention is constructed as described above, when the heater is energized and the motor is rotated, the heat generated by the heater and trapped in the chamber formed by the heat shield plate and the reflector plate is transferred to the reflector plate by the rotation of the fan. Hot air can be blown out from multiple holes near the periphery and center, providing a comfortable supply to the user.
However, since the fan covers the heater, most of the heat emitted from the heater is blocked by the fan, and together with the heat shield, it can provide a heat shielding effect for the decorative board. Since it is provided between the heater unit and the reflector, the heater unit can be made much thinner than conventional heater units.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Reference numeral 11 denotes a reflector plate with a substantially rectangular cross-section and a dish-shaped cross section, and machine screws 14 and 1 are attached to the wooden frames 12 and 13 of the kotatsu body.
It is fixed by 5. A motor 16 is fixed to the center of the reflecting plate 11 by appropriate means.

Elongated long holes 17 and 18 are formed in the reflecting plate 11 so as to sandwich the motor 16 therebetween, and rod-shaped heaters 19 and 20 are attached to the centers of these long holes by appropriate means.

However, as shown in FIG. 2, each heater is mounted so that its upper surfaces 21 and 22 are located above the reflector 11, and the lower surfaces 23 and 24 are located below the reflector 11, with the elongated hole bordering the heaters. It is preferable to be able to do so.

A thermostat 25 is provided on one side of the reflecting plate 11 and controls the temperature of the heater.

The peripheral edge of the reflector 11 has a slope 26 that slopes inward (upwards), and the thermostat 25 on this slope
A plurality of holes 27, 28, and 29 are bored on each of the other three sides except for the one side where the is attached. Furthermore, a plurality of holes 30, 31, and 32 are bored near the center of the reflector 11 in the vicinity of the motor 16. However, the inner hole 32 of these holes is connected to the thermostat 2.
Located close to 5.

33 is a heat shield plate located inside (above) the reflector plate 11.
The reflective plate is attached to the reflective plate in the vicinity of the decorative plate 34 by appropriate means. The peripheral edge of this heat shield plate has an inclined surface 35 facing outward (downward). A chamber 36 is formed by the reflective plate 11 and the heat shield plate 33. This chamber 36 has a disc-shaped fan 37 rotated by the motor 16. However, the fan has a plurality of blades 38 on its peripheral edge and is sized to cover each heater.

39 indicates a protective guard.

Next, the operation of the kotatsu shown in this example will be described. When the heaters 19 and 20 are turned on and heated, the heat emitted from these heaters is reflected by the reflection plate 11.
The air in the chamber 36 formed by the heat shield plate 33 and the heat shield plate 33 is heated. When the fan 37 rotates due to the rotation of the motor 16, the warm air inside the chamber 36 is pumped through the plurality of holes 27, 28, 29 at the periphery of the reflecting plate 11, the plurality of holes 30, 31, 32 near the center, and further through the long holes. It blows out from the holes 17 and 18 to supply comfortable warm air to the user.

In addition, since the lower surfaces 23 and 24 of each heater 19 and 20 are located on the front side of the reflector plate 11 with the reflector as a boundary, the heat from each heater is directly supplied to the user along with the warm air, and the entire body is heated. This provides comfortable heating.

Furthermore, since the hot air blown out from the holes 32 directly touches the thermostat 25, if this temperature becomes excessively high, the thermostat 25 immediately acts to control the temperature of each heater.

However, since the fan 37 is provided to cover each heater 19, 20, the heat emitted from the heater and directed inward (upward) is blocked not only by the heat shield plate but also by the fan.

[Effect of idea]

As mentioned above, in the case of the present invention, the fan is installed between the heat shield plate and the reflector plate, so it is much thinner than the conventional one, which not only provides comfortable heating, but also increases the heat generated by the heater. It is possible to provide a highly safe electric kotatsu with little chance of being transmitted to the decorative board.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view of the main part of the kotatsu according to the present invention, FIG. 2 is a sectional view taken along the - line in FIG. 1, and FIG. 3 is a longitudinal sectional view of the main part of the conventional kotatsu. 11...Reflector, 16...Motor, 17, 18
...Elongated hole, 19,20...Heater, 25...Thermostat, 27,28,29,30,31,3
2... Hole, 33... Heat shield plate, 34... Decorative board, 3
7... Juan.

Claims (1)

[Scope of utility model registration request] A heat shield plate provided close to the decorative board, and a plurality of holes provided facing the heat shield plate, each having a plurality of holes near the periphery and center, and bored parallel to each other, facing each other. a reflector plate having elongated holes, a motor provided on the front side of the central part of the reflector plate, a rod-shaped heater provided along each of the elongated holes, and a heat shield plate and a reflector plate rotated by the motor. A hot air type electric kotatsu comprising a fan provided between the heaters and the heaters so as to cover each of the heaters.