JPS6219661B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric stove using a straight tube type high temperature radiant heater that emits radiant heat including bright visible light.

Conventional technology This type of conventional electric stove is shown in Figures 6 and 7.
This will be explained with reference to FIG.

The first conventional example (Japanese Unexamined Patent Publication No. 58-142128) is the sixth example.
As shown in the figure. In Fig. 6, 1 is a main body, 2 is a reflector, 3 is a lamp heater, and 4 is a transparent plate made of a material that transmits infrared rays, such as heat-resistant glass, and its front surface is formed into an uneven shape, for example, in the shape of a square pyramid. has been done.

When the lamp heater 3 is energized, the heat rays pass through the light-transmitting plate 4, are refracted at the front surface of the light-transmitting plate 4, which has an uneven shape, and are diffused and radiated into the room. However, it has the effect of alleviating the irritation it gives to the eyes.

In addition, since the lamp heater 3 is covered by the transparent plate 4, it is safe because fingers and combustible materials do not come into direct contact with the lamp heater 3, and the front surface of the transparent plate 4, which has an uneven shape, prevents light from coming into contact with the lamp heater 3. The light is diffused and the entire surface of the transparent plate 4 shines even when viewed from an angle, making it look beautiful and warm.

Also, the second conventional example (Utility Model Application Publication No. 49-21959)
As shown in FIGS. 7a and 7b, a reflector 6 is provided behind the straight tube-shaped heater 5, and a protective net 7 made of metal lath is provided in front to cover the heater 5, so that the heat rays 8 are reflected by the protective net 7. It is configured to change upward.

Furthermore, the third conventional example (Utility Model Application Publication No. 56-15590)
As shown in FIGS. 8a and 8b, a reflecting plate 10 is provided at the rear of a straight tube-shaped heating element 9, and a heating element 9 is placed in front of the straight tube-shaped heating element 9.
A cell-like structure 11 is provided to cover the cell 11a, and the radiation infrared rays 12 from the heating element 9 are reflected on the reflective surface of the cell 11a, thereby preventing the radiation infrared rays from spreading in the front.

Problems to be Solved by the Invention However, there is currently a problem that there is no material suitable for the transparent plate 4 used in the structure of the first conventional example. That is, the heat-resistant glass exemplified in the first conventional example generally has poor transmittance for infrared rays with a wavelength of 2.7 μm or more, which reduces the warmth of an electric stove.

Furthermore, in the second conventional example, the heater 5 is not a high-temperature radiant heater, and the protective net 7 is made of metal lath.
Since the inner surface of the mesh cannot be made to shine as a reflective surface that shines with light, the heating effect, including visual sense, is low.
Furthermore, the mesh of the protective net 7 is diamond-shaped, and the heater 5 is clearly visible, which tends to cause unevenness during heating, and the strength is also weak.

Further, in the third conventional example, since the cells 11a of the cellular structure 11 are square, the radiated infrared rays 12 are reflected equally in opposite directions by the reflecting surfaces of each cell. Therefore, the infrared distribution is directed in the longitudinal direction of the horizontally elongated heating element 9, and the overall efficiency for warming the person decreases. Further, the heating element 9 was easily visible through the square cells 11a of the cellular structure 11, and uneven heating was likely to occur, and the strength was weak against external forces in diagonal directions.

The present invention solves these conventional problems and provides an electric stove that improves safety without reducing warmth, spreads warmth, and provides a beautiful shining surface.

Means for Solving the Problems The electric stove of the present invention includes a straight tube type high-temperature radiant heater that emits radiant heat including bright visible light;
a reflective plate provided at the rear thereof; an aluminum honeycomb member provided in front of the high-temperature radiant heater to cover the heater; a light shielding member, the aluminum honeycomb member has a cell wall that shines when receiving light, the light shielding member covers the aluminum honeycomb member with an edge of its opening, and the radiant heat of the high temperature radiant heater The light is reflected by the walls of the cells of the aluminum honeycomb member, passes through the cells, and radiates forward from the openings of the light shielding member.

Function Since the electric stove of the present invention has the above-described configuration, all the energy including bright visible light and infrared rays emitted from the high-temperature radiant heater passes through the honeycomb member without being absorbed. When the light passes through, the light is reflected on the cell wall, causing the entire surface of the honeycomb member at the opening formed in the light shielding member to shine beautifully, creating a beautiful pattern.

Embodiment Hereinafter, an electric stove according to an embodiment of the present invention will be described with reference to the drawings. 1, 2, and 3, 13 is the main body, 14 is a reflector, 15 is a straight tube type high temperature radiant heater that emits bright visible light and infrared rays, and 16 is a heater that covers the heater 15. It is an aluminum honeycomb member provided in front of cell 15, and each wall surface forming hexagonal cell 16b is a wall surface that shines when it receives light. 17 is a light shielding member that closes a part of the rectangular honeycomb member 16 and has an oval opening 17a in the center, and 18 is a backing plate. Then, as shown in FIG. 3, the honeycomb member 16 is sandwiched between the light shielding member 17 and the contact plate 18, and the pawl 17b provided on the light shielding member 17 is bent and fixed.
It is assumed that the honeycomb unit is 19.

FIG. 4 shows details of the aluminum honeycomb member 16. The aluminum honeycomb member 16 has a large number of hexagonal cells 16b formed by gluing together a large number of thin aluminum foils 16a with adhesive applied in several patterns and pulling the aluminum foils apart from each other. ing. Note that b is the cell dimension and t is the thickness of the honeycomb member. In this example, the cell dimension b is approximately 3 mm, the thickness t of the honeycomb member is 5 mm, and the thickness of the aluminum foil is approximately 30 μm.

In addition, the high temperature radiant heater 15 of this embodiment is a lamp heater in which a tungsten alloy is used for the heater wire, a quartz tube is used for the outer tube, and an inert gas is sealed inside, and the heater wire temperature is set at 1000°C to 1500°C. is used. Therefore, it emits brighter light than electric wire heaters used in general atmospheric environments.

Since this embodiment has the above configuration, a part of the infrared rays including bright visible rays emitted from the high temperature radiant heater 15 is transmitted to the aluminum honeycomb member 16.
The light passes straight through the cell 16b, and a portion of the light passes through the cell 16b while being reflected on the wall of the cell 16b. The light is then emitted forward through an opening 17a provided in the light shielding member 17.

Therefore, the entire surface of the aluminum honeycomb member 16 that faces the opening 17a of the aluminum honeycomb member 16 provided on the front surface of the high-temperature radiant heater 15 that is not covered by the light shielding member 17 shines beautifully. In addition, since the light shielding member 17 is made of plate-shaped metal,
The shape of the opening 17a can be freely formed by press working, and various designs as shown in FIGS. 5a, b, and c are possible. That is, while using the honeycomb member 16, which is difficult to cut other than straight lines, the shape of the beautiful shining surface including curved parts can be freely and accurately designed, and the reflection distribution of heat rays can be made uniform.

In addition, even if irregularities occur around the outer shape of the aluminum honeycomb member including the size, it is covered by the edge of the opening 17a of the light shielding member 17. There is no need to take special precautions, making it extremely easy to process.

Further, at least two wall surfaces of the hexagonal cells of the honeycomb member 16 are connected to the straight pipe type high temperature radiant heater 1.
The position is inclined to the longitudinal axis of 5,
Unnecessary radiation in the longitudinal direction of the straight tube type high temperature radiant heater 15 is suppressed, and the high temperature radiant heater 15 is caused to spread in the right angle direction. Therefore, especially in the case of an electric stove that uses the high-temperature radiant heater 15 vertically as in this embodiment, the rise in floor temperature can be prevented by lowering the straight-tube type high-temperature radiant heater 15 close to the floor and placing the footwells close to the floor. It has the effect of heating you from the side.

Furthermore, the honeycomb member 16 is connected to the high temperature radiant heater 1
5, and prevents people's fingers and combustible materials from coming into contact with the high-temperature radiant heater 15, and since there is no object through which the heat rays can pass, there is no reduction in energy caused by poor transmittance.

Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, the following effects can be obtained.

(1) The unnecessary spread of radiant heat in the longitudinal direction of the straight pipe type high-temperature radiant heater is suppressed, allowing efficient heating of the person taking the heat.

(2) The surface shape of the aluminum honeycomb member can be regulated by the opening of the light shielding member, so that the surface shape can be accurately designed and the heat ray reflection distribution can be made uniform.

(3) Even if any misalignment occurs in the outer circumferential processing of the aluminum honeycomb member, it is covered by the opening edge of the light shielding member, making it easier to process the outer shape of the honeycomb member and significantly improving the manufacturing yield.

(4) Since there is no object in front of the high-temperature radiant heater through which the heat rays pass, there is no reduction in energy due to transmission.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of an electric stove according to an embodiment of the present invention, Fig. 2 is a plan sectional view of Fig. 1,
Fig. 3 is an exploded perspective view of the honeycomb unit, Fig. 4 is a detailed perspective view of the aluminum honeycomb member, Figs. Figure 6 is a front cross-sectional view of the first conventional electric stove, Figures 7 a and b are front views and vertical cross-sectional views of main parts of the conventional electric stove, and Figures 8 a and b.
1 is a side view and a front view of a conventional electric stove. 13...Reflector, 15...High temperature radiant heater, 1
6... Aluminum honeycomb member, 16b... Cell,
b...Cell dimension, t...Thickness of honeycomb member, 1
7... Light shielding member, 17a... Opening, 18... Backing plate.

Claims (1)

[Scope of Claims] 1. A straight tube-type high-temperature radiant heater that emits radiant heat including bright visible light, a reflector provided behind the high-temperature radiant heater, and a reflector provided in front of the high-temperature radiant heater to cover the high-temperature radiant heater. and a frame-shaped light shielding member provided on the outer periphery of the aluminum honeycomb member and having an opening on the front surface, and the aluminum honeycomb member has a cell wall surface that receives light. The light shielding member covers the aluminum honeycomb member with the edge of its opening, and the radiant heat of the high temperature radiant heater passes through the cell while reflecting on the wall surface of the cell of the aluminum honeycomb member, An electric stove that emits light forward from the opening in the light shielding member. 2. The electric stove according to claim 1, wherein the opening of the light shielding member includes a curved part. 3. The electric stove according to claim 1, wherein the thickness of the honeycomb member is larger than the cell size.