KR20000003790U - Reflective Structure of Halogen Lamp for Microwave Oven - Google Patents

Abstract

The present invention relates to a reflective structure for reflecting the light of the halogen lamp into the cavity in a microwave oven with a halogen lamp.

Reflective structure according to the present invention is to reflect the plurality of halogen lamps (12,14) for generating light of a predetermined wavelength and the light from the halogen lamp into the cavity, so that the distribution of light reflected inside the cavity is different A plurality of reflecting portions 22a and 22b for reflecting light from the light emitting lamp; It is characterized in that light reflection is possible evenly inside the cavity.

Description

Reflective Structure of Halogen Lamp for Microwave Oven

The present invention relates to a reflective structure of a halogen lamp used in a microwave oven, and more particularly, by configuring the reflector reflecting the light of the halogen lamp asymmetrically, the halogen lamp is configured to enable more uniform heating. To a reflective structure.

Various kinds of apparatuses have been proposed to date as heating apparatuses for heating foods. The most primitive heating mechanism is a container of a predetermined shape in direct contact with a heat source, and the contents to be cooked are placed in such a container, and the desired cooking is performed by applying heat.

In addition, many types of cooking apparatuses have been developed that use electric energy directly or indirectly. As an example, a microwave oven using microwaves as a heating source may be cited. A microwave oven is a cooking apparatus in which microwaves are generated using electricity, and the microwaves penetrate the object to be cooked, causing molecular motion inside the object, and thereby heating. Such microwave ovens are widely used for simple heating, for example, a thawing process for dissolving frozen food or a device for heating food such as milk to a predetermined temperature due to its simple configuration and ease of use. It is used.

However, the microwave oven cannot be said to be suitable for heating various objects due to the disadvantages in use due to the heating method and the limitation of its output. That is, the conventional microwave oven using only microwaves as a heating source is pointed out that there is a problem in that it is not possible to provide fast and high-quality cooking because of the unity of the heating method by the microwave and its output. . For example, when heated by microwave, the object is heated both inside and outside together, but this advantage is a significant disadvantage depending on the cooking object. When cooking pizza as described later, it is judged that heating by microwaves is not suitable due to the properties of the object. In addition, it is also pointed out that in the case of heating by a microwave oven, too much moisture is removed from the object.

For these current microwave ovens, various types of microwave ovens using different heat sources have been developed and commercialized. For example, a microwave oven capable of performing appropriate heating on various cooking objects may be mentioned by attaching a convection heater, which can be said to be another heat source, separately from the microwave. In this way, however, even in a microwave oven in which the heater is built, it is true that such a heater does not have various functions as a whole because it only serves as another heat source.

In conclusion, when heating by the conventional microwave only, the limitation of the heating method of the single method of heating by the microwave, the disadvantages of the output, and various disadvantages due to the evaporation of water have been pointed out. Even in the case of installation, the above-mentioned disadvantages cannot be sufficiently solved.

In order to solve the above-mentioned problems of the conventional microwave oven, a microwave oven using light waves as a heating source has been proposed. That is, by using a lamp having a wavelength of at least 90% of the radiant energy of 1 μm or less as a heating source, by appropriately using the visible light and infrared rays emitted from such a lamp, the characteristics of the surface and the inside of the heating object can be adjusted. It is to be able to perform heating while keeping enough power. Halogen lamps are mentioned as such a heating source.

The difference between the wavelengths of the infrared light and the visible light is represented by the difference in the heating method by the different wavelengths applied to the object, and the outside and the inside of the object are heated in different forms by this difference. Using such a halogen lamp, for example, in the case of pizza, it is possible to obtain a cooking state in which the outside has a crisp heating degree and the inside is sufficiently heated and softly heated with a predetermined moisture. .

1 shows a microwave oven using such a halogen lamp as another heating source. As shown in the figure, a pair of halogen lamps 12 and 14 are provided on the upper surface 10 of the cavity 2 of the microwave oven. The use of the light waves emitted from the halogen lamps 12 and 14 as a heating source for heating the heating object and the properties of the light waves generated from the halogen lamps are as described above.

The reflection plate 16 is installed above the halogen lamps 12 and 14 to reflect the light waves generated upward from the halogen lamps 12 and 14 into the lower cavity 2. A plurality of through holes 18 are formed on the upper surface of the cavity 2 in which the halogen lamps 12 and 14 are provided.

Next, the structure of the conventional reflector will be described with reference to FIGS. 2 and 3. As described above, the reflector 16 is for reflecting light generated from the halogen lamps 12 and 14 into the cavity 2. As shown in FIG. 2, the upper portion of each of the halogen lamps 12 and 14 may be covered so that light incident upwardly from each of the halogen lamps 12 and 14 may be reflected back toward the lower cavity. And a first reflecting portion 16a and a second reflecting portion 16b. The reflecting plate 16 shown in FIG. 2 shows a reflecting plate 16 having a trapezoidal shape as a whole and composed of a pair of reflecting sections.

3 shows a conventional configuration example of a reflecting plate composed of a pair of reflecting portions 26a and 26b having a semicircular cross section.

Of course, the shape of the reflector can be modified in many ways, such as having a trapezoidal shape or a semi-circle, as shown in the figure, and the shape of the reflector can reflect light from the halogen lamps 12 and 14 into the cavity 2. There may be various other variations within the scope.

However, according to the conventional structural example shown in FIG. 2 and FIG. 3, it turns out that each reflecting part 16a, 16b and 26a, 26b which comprise a reflecting plate has the same shape of symmetry. At the same time, the respective halogen lamps 12 and 14 located inside the respective reflecting portions are also provided at the same positions.

Thus, according to the conventional structure, it can be seen that the pair of reflecting portions and the halogen lamps have exactly the same shape and position from left and right.

According to such a conventional structure, the light accompanied by the heat reflected by the reflector plates 16 and 26 has the same reflection angle, so that the same light is transmitted at the same position even in the cavity. Therefore, the object to be heated may be partially heated by energy transmitted in the same amount of light at the same position. Although the heating object is heated while rotating by a turntable (not shown) inside the cavity 2, when light from the halogen lamps 12 and 14 is supplied by the reflecting plate 16, only the same portion has the same reflection pattern. As a result of supplying by the light source, there is a possibility that a problem occurs in the uniform supply of light as a whole.

The present invention has been made to solve the above-described problems, and an object thereof is to provide a reflective structure capable of uniformly heating a heating object as a whole.

The object of the present invention may be achieved by supplying the amount of light reflected by the reflecting plate into the cavity as a whole.

1 is an exemplary configuration diagram of a microwave oven equipped with a halogen lamp.

Figure 2 is a partial perspective view showing the structure of a conventional reflector.

3 is a partial perspective view showing another conventional reflecting plate.

Figure 4 is a partial perspective view showing the structure of a reflecting plate according to the present invention.

5 is a partial perspective view of a reflector of another embodiment according to the present invention;

6 is a partial perspective view of a reflector according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

12, 14 ..... Halogen lamps 22, 32, 42 .... Reflector

22a, 22b, 32a, 32b, 42a, 42b ..... Reflector

Reflective structure according to the present invention for achieving the above object comprises a plurality of light emitting lamps for generating light of a predetermined wavelength; Reflecting light from the light emitting lamp into the cavity, and including a plurality of reflecting portions reflecting light from the light emitting lamp so that the distribution of light reflected into the cavity is different; It is characterized in that light reflection is possible evenly inside the cavity.

Reflective structure according to another embodiment of the present invention, a plurality of reflectors for reflecting light into the cavity; The light is provided inside the reflector to reflect light into the cavity, and includes a plurality of light emitting lamps installed at different relative positions in the respective reflectors.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

4 shows a reflective structure according to a first embodiment of the present invention. As shown in the drawing, the reflector plate 22 according to the present invention is composed of a first reflecting portion 22a and a second reflecting portion 22b each having different dimensions. Since the first reflecting portion 22a and the second reflecting portion 22b have the same outer shape, but have different dimensions, the reflection angles of the light reflected by the reflecting portions 22a and 22b are the same, but the light is different. The density will be different. Therefore, since the light density reflected by the first reflector 22a and incident into the cavity is different from the light density reflected by the second reflector 22b and incident into the cavity, more specifically, the first reflector ( The light density reflected at 22a) is intensively formed in a narrower area, while the light reflected from the second reflector 22b and incident into the cavity is lowered to have a uniform density distribution throughout. Is formed.

Therefore, the first reflector 22a reflects light intensively to the heating object inside the cavity, while the second reflector 22b reflects the light from the halogen lamp 14 to have an even distribution of light as a whole. do.

According to this embodiment, since it is possible to reflect the light from the halogen lamps 12 and 14 so that the reflecting plates on both sides can have a more uniform distribution of reflected light, compared with the conventional one having the same reflecting angle. It is expected that the object can be heated evenly.

In addition, the relative dimension of the halogen lamp 12 located in the first reflecting portion 22a, for example, the height h, is different from the relative dimension of the halogen lamp 14 located in the second reflecting portion 22b. It is preferable to set differently. By setting the relative positions of the halogen lamps 14 differently, the reflection angles of the substantially reflected light are different, and such different reflection angles have different reflecting plates 22a in consideration of reflecting plates having different dimensions. It means that the reflected light reflected at 22b) can be distributed more uniformly inside the cavity.

And the reflecting plate 22 according to the first embodiment of the present invention shown in Figure 4 shows an embodiment implemented with a reflecting portion having a pair of trapezoidal shape. In addition, the embodiment shown in FIG. 5 is an embodiment implemented in the reflecting plate 32 in which each reflecting unit 32a and 32b is formed in a semicircular shape.

Also in the embodiment shown in FIG. 5, the light reflected by the second reflecting portion 32b having a larger radius is uniformly distributed in a larger area inside the cavity, while the first reflecting portion 32a is distributed. The light reflected by it will have a distribution concentrated in a relatively small area inside the cavity. In the second embodiment, the light distribution due to the reflection of the halogen lamps 12 and 14 is the same as in the above-described first embodiment, and a detailed description thereof will be omitted.

Next, a third embodiment of the present invention will be described with reference to FIG. 6. The present embodiment differs in the light distribution reflected inside the cavity by differently setting the relative positions of the pair of halogen lamps 12 and 14 installed inside the pair of reflecting portions 42a and 42b having the same outer shape. The embodiment is configured to be able to.

In the illustrated embodiment, the first reflecting portion 42a and the second reflecting portion 42b have the same appearance and semi-circular reflecting portion in the illustrated embodiment, but inside each of the reflecting portions 42a and 42b. The relative positions of the halogen lamps 12 and 14 provided in the are different. The halogen lamp 12 is provided so as to have a height of c while being located at the right and left symmetrical position in the first reflecting portion 42a, i. On the other hand, in the halogen lamp 14, the distance from the left and right sides to the reflecting portion 42b in the second reflecting portion 42b is determined differently by b and b ', respectively, and the height c' is also determined by the first reflecting portion. It is determined differently from the height c of the halogen lamp of (42a).

By setting the relative positions of the halogen lamps 12 and 14 provided inside the respective reflecting sections 42a and 42b in this way, the reflection angles of the reflecting sections 42a and 42b are determined differently. Therefore, it is natural that the light incident into the cavity substantially has different light densities. Therefore, according to this embodiment, the light applied to the heating object can be made to have different densities.

As described above, according to the present invention, in the reflection of light from a plurality of halogen lamps on the reflecting plate, by having different reflection angles, the technical gist of the present invention is to provide uniform light inside the cavity. It can be seen that.

According to the present invention as described above, by varying the density of light incident into the cavity in which the heating target is located, by molding to have a uniform light distribution as a whole, it is possible to achieve uniform heating.

Claims (3)

A plurality of light emitting lamps generating light of a predetermined wavelength; Reflecting light from the light emitting lamp into the cavity, and including a plurality of reflecting portions reflecting light from the light emitting lamp so that the distribution of light reflected into the cavity is different; The light emitting lamp reflecting structure of the microwave oven, characterized in that even light reflection is possible throughout the cavity. The light emitting lamp reflecting structure of claim 1, wherein the plurality of reflecting parts are formed in the same shape but have different dimensions. A plurality of reflectors for reflecting light into the cavity; Light emitting lamp reflection of a microwave oven, which is provided inside the reflector to generate light reflected into the cavity, and includes a plurality of light emitting lamps installed at different relative positions in each reflecting unit. rescue.