WO1989007737A1 - Cooking range - Google Patents

Abstract

In a cooking range having a halogen lamp (2) provided as a heat source below a cooking plate (1), and a reflecting member (3) surrounding the outer side portion of the halogen lamp (2), the halogen lamp (2) is bent at its intermediate portion and crossed at its both end portions so as to form a substantially annular portion (4) with sealed portions (5), which are provided at both ends of the halogen lamp, positioned on the outer side of the reflecting member (3). The halogen lamp (2) is crossed at its end portions on the inner side of the reflecting member (3), and a light-emitting member (6) is provided so as to extend substantially from the intersection of these end portions and through the annular portion (4).

Description

Specification

heating cooker

Technical field

TECHNICAL FIELD The present invention relates to a heating cooker using a halogen lamp. Background technology

Heating cookers using halogen lamps are well known. This heating cooker uses electricity, so it does not emit flames or smoke, so it is safe. In addition to the advantages of the heater system, the temperature control can be selected steplessly, and the rise time is also fast, which cannot be obtained with other heaters. It has advantages.

By the way, most of the bottoms of cooking utensils are circular, and it is desirable that the heat-generating part of the heating cooker is ring-shaped from the point of view of thermal efficiency, but halogen lamps tend to be curved. was difficult. For this reason, a conventional heating cooker using halogen lamps has a plurality of linear halogen lamps arranged side by side, and a circular transmitting portion is formed on the cooking plate with a masking plate.

However, if the number of halogen lamps in the above-mentioned heating cooker is small, it is difficult to heat the cookware evenly. Also, if the number of halogen lamps is large, the uneven heating mentioned above can be eliminated, but it becomes very expensive.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and to provide a heating cooker having a long-life annular halogen lamp. Another object of the present invention is to provide a heating cooker in which the light-emitting portion of the halogen lamp can be made into a nearly circular annular shape.

Invention disclosure

The invention for achieving the above object is a heating cooker having a halogen lamp provided as a heat source below a cooking plate and a reflecting member surrounding the outside of the halogen lamp. By curving the parts and crossing each other on the rainy end side to form a substantially circular annular part, the sealing parts provided at both ends of the halogen lamp are positioned outside the reflecting member. be.

The invention for achieving the above-mentioned other object is characterized in that the halogen lamps are intersected within the reflecting member, and the light-emitting portion is provided on the annular portion side from the substantially intersecting position.

Brief description of the drawing

Fig. 1 is an exploded perspective view of the main part of the heating cooker, which is an embodiment of the present invention;

Fig. 2 is a sectional view of the heating cooker,

Fig. 3 is a plan view of a halogen lamp used in the heating cooker according to the present invention;

FIG. 4 is an exploded perspective view showing another embodiment of the present invention, and FIG. 5 is a cross-sectional view showing a part of the heating cooker in an assembled state.

Best Mode for Carrying Out the Invention

The present invention will be described in detail with reference to the accompanying drawings. Figures 1 and 2 show an embodiment of the cooker according to the invention, but only the main parts of the cooker are shown for ease of understanding.

1 and 2, reference numeral 1 denotes a cooking plate made of shochu hot glass or the like, 2 a halogen lamp, and 3 a reflector configured as a reflector surrounding the outside of the halogen lamp 2. It is a material. The halogen lamp 2 is formed in a nearly circular shape with a curved intermediate portion as clearly shown in FIGS. Extends out of 3. That is, the halogen lamps 2 cross each other near the rain end to form an annular portion 4, and the sealing portions 5 at both ends thereof are positioned outside the reflector 3. In this case, the halogen lamp 2 has its intersecting position within the reflector 3, and the filament which is the light emitting part of the halogen lamp 2 is provided in the annular part 4 between the intersections. . In addition, in the case of this example, a notch 3a is formed in the reflector 3, and both end portions of the halogen lamp are led outside through this notch 3a.

A molybdenum foil 7 is provided in the sealing portion 5 , and an external lead wire 8 and an internal lead wire 9 are connected to the molybdenum foil 7 . An internal lead wire 9 extends from the molybdenum foil 7 to the filament 6 . Well, code 10 is a sensor that detects the temperature near one side of the cooking plate.

In the heating cooker thus constructed, since the sealing portion 5 of the halogen lamp 2 protrudes outside the reflector 3, the temperature can be maintained at a low temperature. At this time, if necessary, a fan or the like is provided inside the vessel to can also be cooled by wind. In addition, since the intersection position of the halogen lamp 2 is within the reflector 3, and the filament is provided in the contact-shaped portion 4 between the intersections, the halogen lamp 2 can be used during cooking. The red light appearing on the plate 1 becomes an almost circular ring, which has a high thermal efficiency and an excellent appearance.

By the way, in the case of a heating cooker that simply uses a substantially annular halogen lamp and places its sealing portion inside a reflective material, the radiant heat of the halogen lamp also contributes to heating. Within the material, the concentration near the surface of the norogen lamp is about 700. It will reach a high temperature of C to 800°C.

However, it is necessary to keep the sealed part of the norogen lamp below 350°C, which is also stipulated in the Japanese Industry Standards. If the sealing part of the halogen lamp becomes hotter than that, the molybdenum foil part is likely to break, and the above-mentioned heating cooker has a problem that the life of the halogen lamp is short.

Furthermore, since the above heating cooker is not provided with a filament in the sealing portion, the halogen lamp light emitting portion has a circular shape with a missing portion, that is, an almost C shape. There was also a problem.

This kind of problem does not occur in the present invention because the sealing portion 5 of the halogen lamp 2 protrudes outside the reflector 3 . Also, the norogen lamp 2 is provided in the annular portion 4 between the filaments 6, so that the red light appearing on the cooking plate 1 has a substantially circular ring shape. 4 and 5 are an exploded perspective view and a sectional view showing an embodiment of the present invention.

In Fig. 4, the cooking plate 1 comprises a super-distilled glass-ceramic plate 11 and a masking plate 12, and is fixed to the case 13 of the heating cooker. The reflecting plate 3 includes a cylindrical side wall 14, a central protrusion 15, two holding arms 16 extending from the central protrusion 15 to the side wall 14, and a bottom plate 17 made of heat-absorbing material. -It is made physically. In this example, the reflector 3 is made by molding ceramic dicfino. A temperature sensor 10 is provided on the central projection 15.

A notch 18 is formed in the side wall 14, and the halogen lamp 2 is supported by the notch 18 and a receiving groove 19 formed in the support arm 16. In this case, after the halogen lamp 2 is placed on the reflector 3, the joint piece 20 is fitted into the notch 18, and this joint piece 20 leaves a gap at the rain end of the halogen lamp 2. It is supported by penetrating the side wall 14 as it arises.

A circular heat insulating plate 21 is superimposed on the lower part of the reflecting plate 3, and the heat absorbing plate 21 is composed of ultrafine silica particles, ceramic fibers, and an opaque agent. A heat insulating material with a microporous structure (trade name Microtherm) is used as the main component. The overlapping body of the reflector 3 and the heat insulating plate 21 is accommodated in a dish-shaped receiving member 22, and the receiving member 22 is supported by the bottom cover 24 via a compression spring 23. . The compression spring 23 and the upper surface of the reflector plate 3 are pressed against the cooking plate 1, Since the lamp 2 penetrates the side wall 14 with almost no gap, the interior of the reflector 3 is kept substantially airtight.

In the heating cooker thus constructed, the sides and bottom of the reflector 3 are kept in an airtight state with a heat insulating material, so the heat of the halogen lamp 2 generally heats the cooking plate 1, and the heat efficiency increases. increase. Furthermore, since the heat is much less likely to escape to the outside of the reflector 3, the sealing portion 5 of the halogen lamp 2 is kept at a low temperature and does not require a cooling means by blowing air.

Claims

The scope of the claims (1) A heating cooker having a halogen lamp provided as a heat source below a cooking plate and a reflecting member surrounding the halogen lamp, A middle portion of the halogen lamp is curved and crossed at both ends to form a substantially circular annular portion, and a sealing portion provided at the rain end of the halogen lamp is positioned outside the reflecting member. The heating cooker characterized by: (2) The halogen lamps are intersected within the reflecting member, and the light-emitting portion is provided on the annular portion side from the position where they nearly intersect. heating cooker. (3) The reflecting member has a cylindrical side wall and a bottom plate closing the bottom of the side wall, and the side wall and the bottom plate are formed integrally with a heat-insulating material. The heating cooker according to claim 1 or claim 2. (4) The heating cooker according to claim 3, characterized in that both sides of the halogen lamp penetrate through the sidewall of the reflecting member with almost no gap. (5) At least one supporting portion for holding the annular portion of the halogen lamp on the reflecting member is formed integrally with the side wall and the bottom bracket. Cookers as described in Section . (6) A claim characterized in that a heat insulating plate made of a heat insulating material having a microporous structure is superimposed under the reflecting member. The range of the heating cooker described in paragraph 3. ) A receiving member is provided for receiving the superimposed body of the reflecting member and the heat insulating member, the receiving member is supported by the main body of the heating cooker via a spring, and the upper surface of the reflecting member is cooked by the elastic force of the spring. The heating cooker according to claim 3, characterized by being pressed against a plate. new paper