KR20000003796U - Halogen lamp cooling structure of microwave oven - Google Patents

Abstract

The present invention relates to a structure for cooling a halogen lamp mounted in a microwave oven and operating as another heating source.

Cooling structure according to the present invention, the light emitting lamp is installed on one side of the cavity of the microwave; A reflection plate installed above the light emitting lamp to reflect light into the cavity; Air flow generating means for generating a cooling air flow; Inflow means for introducing the cooling airflow into the reflection plate; And exhaust means for exhausting the airflow introduced into the reflection plate to the outside of the reflection plate. The inflow means is composed of a flow inlet of a predetermined interval formed between the reflecting plate and the cavity one side. The exhaust means includes a porous portion formed on one side of the cavity corresponding to the light emitting lamp, and a vent formed on the upper portion of the reflecting plate, and through the porous portion, the vent portion is lowered to the upper portion of the reflecting plate. Exhaust cooling airflow.

Description

Halogen lamp cooling structure of microwave oven.

The present invention relates to a cooling structure of a halogen lamp used in a microwave oven, and more particularly to a cooling structure of a halogen lamp configured to form a cooling air flow flowing into the cavity and the upper portion of the reflector via the halogen lamp. It is about.

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 halogen lamp 12 is provided on the upper surface 10 of the cavity 2 of the microwave oven. The use of the light waves emitted from the halogen lamp 12 as a heating source for heating the heating object and the properties of the light waves generated from the halogen lamp are as described above.

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

Next, a cooling structure of a conventional halogen lamp will be described with reference to FIGS. 2 and 3. As shown, a cooling fan unit 20 for cooling the halogen lamp 12 is provided at a position adjacent to the reflecting plate 14. Referring to FIG. 3, the cooling air flow generated by the cooling fan unit 20 cools the reflecting plate while passing through an upper surface of the reflecting plate 14. However, according to the conventional cooling structure, the cooling airflow mainly cools the reflecting plate 14 while passing through the upper surface of the reflecting plate 14, but does not directly cool the halogen lamp 12 which is the highest temperature. There is a disadvantage.

In FIG. 3, reference numeral 18 is a guide for guiding the cooling airflow between the reflecting plates 14, and 16 is a transmission hole for injecting light waves from the halogen lamp 12 into the cavity as described above. . In addition, a filter 22 is installed at a lower portion of the mesh in which the penetration hole 16 is formed. The filter 22 is usually made of a glass material, and functions to protect water vapor or the like, which contains foreign substances generated from a heating object, from being adhered to the surface of the halogen lamp 12. Substantially the part where the perforated hole 16 is formed and the filter 22 must also be cooled smoothly because they are heated to a considerable temperature, but the conventional cooling structure does not suggest a cooling method for such a part.

According to such a conventional halogen lamp cooling structure, since the halogen lamp installed inside the reflector is not directly cooled, only an indirect cooling effect can be expected, and it is practically impossible to pass through the halogen lamp side. Of course, it is pointed out that the plurality of transmission holes 16 do not have a sufficient cooling structure for the formed porous part.

The present invention is to solve the above-described problems, and an object of the present invention is to provide a cooling structure capable of sufficiently cooling the halogen lamp and its peripheral components.

Another object of the present invention is to more simply implement a configuration of a microwave oven equipped with a halogen lamp through the cooling structure of the halogen lamp.

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

2 is a partial perspective view of a conventional halogen lamp cooling structure.

3 is a cross-sectional view of a conventional halogen lamp cooling structure.

4 is a cross-sectional view of a cooling structure of a halogen lamp according to the present invention.

5 is a perspective view of a cooling structure according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

32, 34 ..... Halogen lamp 38 ..... Top of cavity

40 .... Cooling fan unit 42 ..... Reflector

43 ..... Aeration 44 .... Perforation

Microwave cooling apparatus according to the present invention for achieving the above object, the light emitting lamp is installed on one side of the cavity of the microwave; A reflection plate installed above the light emitting lamp to reflect light into the cavity; Air flow generating means for generating a cooling air flow; Inflow means for introducing the cooling airflow into the reflection plate; And exhaust means for exhausting the airflow introduced into the reflection plate to the outside of the reflection plate.

The inflow means is composed of an airflow inlet portion of a predetermined interval formed between the reflecting plate and one side of the cavity, or is formed in one side of the reflector plate is shown an embodiment consisting of an inflow space for introducing the cooling airflow.

The exhaust means includes a porous portion formed on one side of the cavity corresponding to the light emitting lamp, and a vent formed on the upper portion of the reflecting plate, and through the porous portion, the vent portion is lowered to the upper portion of the reflecting plate. The cooling airflow is exhausted.

According to the present invention, while the airflow flows into the inside of the reflector and then exhausts to the outside, efficient cooling of the halogen lamp, the reflector, and one side of the cavity can be performed. Based on the embodiment will be described in more detail with respect to the present invention.

As shown in FIG. 4 showing the first embodiment of the present invention, the cooling air flow generated in the cooling fan unit 40 is provided between the lower end of the reflecting plate 42 and the cavity upper surface 38. It is configured to be able to flow into the interior of 42). In other words, the cooling air flow generated in the cooling fan unit 40 can be introduced into the reflection plates 42 in which the halogen lamps 32 and 34 are located.

Thus, there may be many configuration examples in the configuration for guiding the cooling air flow in the cooling fan unit 40 to the inside of the reflector plate 42. In the embodiment shown in FIG. 4, the air flow is reflected by the air reflecting plate 42 by forming an air inflow portion 42 b by spacing a predetermined interval between the lower end portion 42 a of the reflecting plate 42 and the cavity upper surface 38. It is configured to be able to flow inward. However, as another configuration example, the inside of the reflector plate 42 is substantially cooled by forming a slit or a through hole through which airflow from the cooling fan unit 40 can flow into one side of the reflector plate 42. It is sufficient to configure so that the cooling air flow in the fan unit 40 can be introduced.

On the upper surface of the reflecting plate 42, a vent hole 43 communicating with the outside is formed. The vent hole 43 communicates the inside and the outside of the reflecting plate, and is formed so that the air flow introduced through the air flow inlet 42b passes through the halogen lamps 32 and 34 and then exits to the top. . The airflow exiting the vent hole 43 is guided by the guide 46 installed at an upper portion thereof to exit the outside of the microwave oven.

In addition, as described above, the porous portion 44 in which a plurality of through holes is formed is located in the cavity upper surface 38 corresponding to the halogen lamps 32 and 34. The porous portion 44 is a portion formed to guide the light generated from the halogen lamps 32 and 34 into the cavity. A filter 48 is provided below the porous portion 44 in the same manner as the conventional art. The filter 48 protects the halogen lamps 32 and 34 from foreign substances generated in food during heating as described above. It is for.

The cooling airflow introduced into the reflection plate 42 through the airflow inlet 42b is introduced into the cavity through the porous part 44. Such airflow substantially forms a smooth flow of air around the porous portion 44, which is effective for cooling the surrounding portion. In addition, the airflow flowing into the cavity through the porous part 44 hits the filter 48 to cool the filter 48.

As described above, according to the present invention, the cooling air flow generated in the cooling fan unit 40 is introduced into the reflection plate 42. The introduced airflow passes through the halogen lamps 32 and 34 installed inside the reflector 42 and cools the surfaces of the halogen lamps 32 and 34 to an acceptable temperature.

Part of the airflow introduced into the reflector 42 having the halogen lamps 32 and 34 exits to the upper side of the reflector 42 through the air vent 43 formed at the upper part of the reflector 42. The other part is introduced into the cavity through the porous portion 44 of the cavity upper surface 38, and then completely exits to the outside of the microwave oven along the exhaust structure of the cavity.

As described above, according to the present invention, a part of the airflow introduced into the reflection plate 42 is introduced into the cavity through the hole 44. The air introduced into the cavity through the porous part 44 also serves to prevent water vapor containing foreign substances generated by heating from rising and coming into contact with the halogen lamps 32 and 34. Therefore, when efficiently applying the cooling structure according to the present invention, it is possible to omit the configuration of the filter 48 provided to protect the halogen lamps 32 and 34 from foreign matter.

5 shows another embodiment of the present invention. In the illustrated embodiment, the configurations of the halogen lamps 32 and 34 and the reflecting plate 42 are the same as in the above-described embodiment. 5 shows a case where the cooling fan unit 40 is installed to have a position parallel to the halogen lamps 32 and 34, and other configurations are different from those shown in FIG. same. Therefore, also in this embodiment, a part of the air flow generated in the cooling fan unit 40 flows into the reflection plate 42 to cool the halogen lamps 32 and 34, and then the vent holes formed on the upper surface of the reflection plate ( 43 and the inside of the cavity through the hole 44 of the cavity upper surface 38.

As described above, according to the present invention, at least a part of the cooling air flow generated in the cooling fan unit 40 is introduced into the reflection plate 42. The cooling airflow thus introduced can efficiently cool the halogen lamp by directly hitting the surface of the halogen lamp.

After cooling the halogen lamp, the air flow exits into the cavity and the upper portion of the reflecting plate through the air vent 43 of the upper portion of the reflecting plate 42 and the porous portion 44 of the upper surface 38 of the cavity, respectively. As a result of the airflow exiting the upper portion of the reflector 42, the flow of air around the reflector is substantially smoothed, allowing the reflector to be cooled more efficiently. In addition, due to the air flow introduced into the cavity through the porous part 44, the cooling of the porous part 44 may be performed as well as the filter. In addition, when the airflow according to the present invention is used efficiently, it is possible to block the flow of air rising to the halogen lamp side during heating, so that the configuration of the filter for protecting the halogen lamp can be omitted. Is also expected.

Claims (4)

A light emitting lamp installed on one side of the cavity of the microwave oven; A reflection plate installed above the light emitting lamp to reflect light into the cavity; Air flow generating means for generating a cooling air flow; Inflow means for introducing the cooling airflow into the reflection plate; And And an exhaust means for exhausting the air flow introduced into the reflector to the outside of the reflector. The cooling apparatus of claim 1, wherein the inflow means comprises an airflow inflow portion at a predetermined interval formed between the reflecting plate and one side surface of the cavity. The cooling apparatus of claim 1, wherein the inflow means is formed on one side of the reflecting plate and includes an inflow space for introducing a cooling air flow. The method according to any one of claims 1 to 3, wherein the exhaust means; Pores formed on one side of the cavity corresponding to the light emitting lamp, It consists of a vent formed in the upper portion of the reflecting plate, Cooling apparatus of the microwave oven to exhaust the cooling air flow through the porous portion to the lower portion of the cavity and through the vent hole to the upper portion of the reflecting plate.