JPH037863B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a hot air generating unit suspended within the main body of a yagura kotatsu.

(b) Prior art In the case of the conventional generator unit of this type of kotatsu, especially the one equipped with a lamp, for example, Utility Model Publication No. 46-31430, a space between the lamp and the heating element was set so that the heated lamp (heating element) would not come into contact with the heating unit. A protective mesh was placed over the area where the lamps were located to prevent those who were taking heat from coming into direct contact with the lamps and getting burned. Of course, the protective mesh itself is heated to a high temperature, and contact with the mesh can cause burns, so the mesh is usually spaced a predetermined distance from the lamp to prevent it from being heated more than necessary. It is provided. As a result, the height of the generator unit becomes large, which limits the effective internal volume of the kotatsu tower, which is undesirable as the feet of the person taking the heat come into contact with it. In addition, a wind cylinder is provided to prevent the radiant heat from the lamp from directly hitting the electric motor, but this requires a separate component (wind cylinder) and increases the height of the hot air generation unit. It became the cause.

(c) Problems to be Solved by the Invention The overall height of the hot air generating unit is reduced and the temperature in the storage space of the electric motor is lowered to further reduce the height of the hot air generating unit and the height of the electric motor is reduced. This prevents the effects of heat.

(d) Means for Solving the Problems The present invention has a hot air generating unit suspended from the central ceiling of the main body of the Yagura Kotatsu, wherein the hot air generating unit has a unit top plate;
a wind guide plate having a substantially central portion bulging downward to form a flat surface and an inclined surface on its outer periphery, and a motor storage space provided between the unit top plate; and an electric motor disposed within the motor storage space. , an electric blower fan rotatably driven by the electric motor and disposed facing the flat surface and the inclined surface; and an infrared lamp disposed on the lower surface of the wind guide plate outside the outer periphery of the electric blower fan. , and a mesh body covering the lower part of the wind guide plate, the electric blower fan, and the infrared lamp.

(e) Effect The wind taken in from the center of the mesh body by the rotation of the electric blower fan will hit the flat surface and spread in the circumferential direction, and will be smoothly dispersed radially along the wind guide plate using the sloped surface as a guide. , directly guided by the inclined surface and distributed radially along the wind guide plate, which efficiently cools the flat surface and the inclined surface and smoothes the flow of the wind.

(F) Embodiment The present invention has been made in view of these points, and one embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 designates the main body of the Yagura Kotatsu, which is rectangular in plan and consists of long sides 2, 2 and short sides 3, 3, with legs 4, 4, 4, 4 hanging down from the corners thereof, respectively. There is. The ceiling portion 5 of the main body of the tower kotatsu is constructed by combining a plurality of crosspieces 6, 6, . . . that intersect vertically and horizontally.

Reference numeral 7 denotes a hot air generation unit that is suspended on the central ceiling of the Yagura Kotatsu body 1 and heats the inside of the Yagura Kotatsu body.The hot air generation unit is equipped with an electric blower fan 8 and two rod-shaped infrared rays. The lamps 9, 9 are arranged parallel to each other and are arranged outside the outer periphery of the electric blower fan 8, so that the heat rays radiated from the rod-shaped infrared lamps 9 and the air circulation of the electric blower fan 8 can be used. The inside of the Gurakotatsu body 1 is heated. Therefore, the electric sending fan 8 and the rod-shaped infrared lamps 9, 9 are disposed substantially horizontally in the lateral direction within the hot air generating unit.

The hot air generating unit 7 has a wind guide plate 11 superimposed thereon at a distance S below the uppermost unit top plate 10. The wind guide plate 11 has a substantially central portion bulged downward to form an inverted conical shape, and has a flat surface 11a and an inclined surface 12 on the outer periphery of the flat surface 11a.
A motor storage space 13 is provided between the two. Further, the electric motor M is swingably housed in the electric motor storage space 13, and the electric motor M is elastically supported in the vertical direction by the wind guide plate 11 via a spring 14. The drive shaft 15 of the electric motor M penetrates through the wind guide plate 11 and has a fan 16 disposed facing the flat surface 11a and the inclined surface 12 at its tip. As shown in the direction, one that hits the flat surface 11a and spreads in the circumferential direction and is smoothly distributed radially along the wind guide plate 11 using the slope 12 as a guide, and the other that is guided directly by the slope 12 and is the aforementioned flat surface. 11a and mixes with the flowing wind to form the wind guide plate 1.
1, so that they are distributed radially.

Peripheral frames 17, 17, 17, 17 are provided on the four sides of the unit top plate 10 and the wind guide plate 11, respectively.
The outer peripheral frame is formed with a plurality of horizontally long slits formed through holes 18, 18..., and the lower opening formed by the outer peripheral frame is covered with a net-like body 19 made of flocked lath plate. It's dressed up.

The rod-shaped infrared lamps 9, 9 are located between the electric blower fan 8 and the outer peripheral frame 17 consisting of four sides, and are suspended along a pair of opposing outer peripheral frames, and the irradiation of the rod-shaped infrared lamps is The heat rays directly irradiate and warm the feet of the person positioned below the net-like body 19 through the net-like body 19.
The net-like body 19 is heated by irradiation and further heats the wind guide plate 11, and the central side of the net-like body 19 corresponds to the suction port of the electric blower fan 8 that is driven, and the heated net-like body 19 is indicated by the arrow. Heat is sequentially radiated by the air flowing along the direction. The wind guide plate 11 also radiates heat by air, and the heat is sequentially released from the through holes 18, 18, . Of course, since the hot air that has exchanged heat with the lamps is released from the outer frames 17, 17 on the two sides along the rod-shaped infrared lamps 9, 9, the temperature is higher than the hot air released from the outer frames 17, 17 on the remaining two sides. becomes.

Therefore, the surface of the net-like body 19 is always maintained at a relatively low temperature without being heated more than necessary, and the hot air emitted from the hot air generating unit 7 is connected to the opposite side where the high temperature hot air is emitted and the low temperature hot air is emitted. This forms the opposite sides. In addition, near both ends of the lamp, it is difficult to receive the hot air from the lamp itself, and the temperature in that area becomes low, but it is affected by the heat from the other lamp, so heating is almost uniform on the opposite sides where low-temperature hot air is released. is obtained.

(g) Effects of the invention Since the present invention is configured as described above,
Since the infrared lamp and the electric blower fan do not overlap in the vertical direction, the overall height of the unit can be reduced. In particular, the wind from the electric blower fan flows along flat and inclined surfaces, which cools the entire surface of the wind guide plate and suppresses the temperature rise inside the motor storage space. The distance can be reduced and the overall height of the unit can be reduced. The electric motor housed in the electric motor housing space can be prevented from deteriorating due to high temperatures.

[Brief explanation of the drawing]

Figure 1 is an external side view of the hot air kotatsu of the present invention, Figure 2
The figure is also a bottom view, and FIG. 3 is a longitudinal sectional view of the hot air generating unit used in the hot air kotatsu of the present invention. 1... Yagura kotatsu, 7... Heat generating unit, 8
...Electric blower fan, 9,9... Rod-shaped infrared lamp, 11... Wind guide plate, 11a... Flat surface, 12
... Inclined surface, 13 ... Electric motor storage space, 19 ...
reticular formation.

Claims (1)

[Claims] 1. A hot air generating unit that is suspended from the central ceiling of the Yagura Kotatsu main body, the hot air generating unit having a top plate, a flat surface with a substantially central portion bulging downward, and a sloped surface on its outer periphery. a wind guide plate having a motor storage space between it and the unit top plate; an electric motor disposed in the motor storage space; an electric blower fan disposed thereon; an infrared lamp disposed on the lower surface of the wind guide plate outside an outer periphery of the electric blower fan; and a net-like body covering the lower portions of the wind guide plate, the electric blower fan, and the infrared lamp. A warm air kotatsu consisting of.