JP2001085152A - Microwave device containing mesh member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance strength and maximize a transmission factor of heat or light transmitting a mesh member by forming the mesh member in meshes having honeycomb-shaped hexagonal holes, enhancing a leak breaking ratio, and enhancing an opening ratio relating to the transmission factor of heat or light. SOLUTION: When power is applied in a state such that a cooking material is placed on a turn table 2 within a cooking chamber 1a, the turn table 2 is rotated with a driving motor 3, a magnetron 5 and a heater or a lighting device 9 start operation, an electron wave and heat or light are supplied to the cooking material within the cooking chamber 1a to uniformly heat the cooking material. Heat or light generated from the heater or the lighting device is supplied to the inside of the cooking chamber 1a through a mesh member 100 having hexagonal holes, and leak of microwaves generated from the magnetron 5 to the outside of the cooking chamber 1a is prevented with the mesh member 100.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a mesh member (mesh).
sh member), and
Specifically, the mesh formed on the mesh member is formed in a hexagonal shape like a honeycomb to improve the strength and increase the leakage blocking rate of electron waves, and the transmittance of a heat source or a light source passing through the mesh member. The present invention relates to a microwave device including a mesh member capable of improving the above.

[0002]

2. Description of the Related Art Generally, a typical microwave device including a mesh member includes a microwave oven and a microwave illuminating device, which will be described in detail below. First, in a microwave oven, a heater for supplying heat or light to the food is installed in the cooking chamber. However, when a heater weak to electromagnetic waves such as a far-infrared heater is applied, the heater is moved to the cooking chamber. And a separate chamber separated from the cooking chamber was formed, and the heater was installed inside the chamber.

That is, in a microwave oven as an example of a microwave device including a conventional mesh member, as shown in FIG. 7, there is provided a cooking chamber 1a on which a food is placed and cooked.
A turntable 2 rotatably mounted on the inner bottom surface of the cooking chamber 1a for loading a cooking object, a drive motor 3 installed below the turntable 2 and rotating the turntable 2; A high-frequency generating means 4 having a magnetron 5 and a wave guide 6 which are mounted on the outer side of 1a and output electromagnetic waves to the cooking chamber 1a;
The cooking chamber 1a is separately mounted above the cooking chamber 1a.
And a heating or lighting means 7 for supplying heat or light to the light source.

[0004] In the heating or lighting means 7, as shown in FIG. 8, a chamber 8 formed by notching a top of the cooking chamber 1 a and formed of a reflector 10 and a transparent ceramic 13, A heater or a lighting device 9 for generating light, which is housed in the inside, is provided between the transparent ceramic 13 and the reflecting plate 10, and supplies the heat or light to the inside of the cooking chamber 1a at the same time. A mesh member (mesh) for blocking external leakage of microwaves generated from the magnetron 5;
member) 11).

Here, the transparent ceramic 13 prevents the fumes from being scattered and penetrating from the cooked food in the cooking chamber 1 into the chamber 8 in which the heater or the lighting device 9 is installed. The heater or the lighting device 9 is protected, and the reflector 10 reflects heat or light rays generated from the heater or the lighting device 9 toward the cooking chamber 1.

A conventional example of the mesh member 11 used for the conventional heating or illuminating means 7 configured as described above will be described below with reference to FIGS. That is, in one example of the conventional mesh member 11, as shown in FIG.
The three circular holes 12 formed adjacent to each other are arranged so that the centers of the three circular holes 12 are respectively located at vertices of an isosceles triangle, and the diameter of the circular holes 12 is 3 m.
It was formed in the range of m to 7 mm.

For example, as shown in FIG. 10, when the diameter of the circular hole 12 is 7 mm, the linear distance connecting the centers of the two horizontal circular holes 12 is 7.8 m.
m, their spacing is 0.8 mm. And said 2
A vertical distance between a straight line connected to each center of the two horizontal circular holes 12 and a straight line passing in parallel with the center of another circular hole 12 is 6.8 mm.
The interval between the holes 12 is 0.83 mm.

In another example of the conventional mesh member 11, as shown in FIG. 11, a mesh is formed having a square hole 13, and the length of one side of the square hole is 7 mm.
mm, and the interval between the square holes 13 was 1 mm. Hereinafter, the operation of the microwave oven having such a mesh member will be described. First, when the user applies power while the food is placed on the turntable 2 inside the cooking chamber 1a, the turntable 2 is rotated by the drive motor 3, and at the same time, the magnetron 5 and the heater or the lighting device 9 are operated. To supply the food with electron waves and heat or light.

Therefore, the food in the cooking chamber 1a is
While being rotated by the turntable 2, electromagnetic waves and heat or light beams are supplied to uniformly heat them. At this time, heat or light generated from the heater or the lighting device 9 is supplied to the inside of the cooking chamber 1a through the mesh member 11 having the circular hole 12 or the square hole 13, and is generated from the magnetron 5. The generated microwave is transmitted to the cooking chamber 1a by the mesh member 11.
Is prevented from leaking outside.

On the other hand, as another example of a microwave device including a conventional mesh member, in a microwave illuminator, as shown in FIG.
A high-voltage generating unit 25 that is mounted on one side of the device and generates a high voltage by receiving power supplied from the outside; and a micro-voltage generated by the high voltage generated by the high-voltage generating unit 25 is installed beside the high-voltage generating unit 25. A microwave generation unit 30 that outputs a wave,
A waveguide 35 for guiding the microwaves output from the microwave generator 30, one end of which is inserted into the waveguide 35, and the other end of which is projected outward of the case 20; A mesh member 40 for resonating a microwave guided through 35, and an electrodeless bulb installed inside the mesh member 40 and filled with a gas excited by the microwave resonated in the mesh member 40 45, a cooling fan 50 installed on the other side of the case 20 corresponding to the mesh member 40, and cooling the heat generated from the microwave generating unit 30 and the high-pressure generating unit 25; The generated air is supplied to the microwave generator 30 and the high-pressure generator 25.
Air guides 55, 5
5 ′, and exhaust ducts 60 and 60 ′ formed on both sides of the case 20 to discharge air that has cooled the microwave generator 30 and the high-pressure generator 25, respectively.
It was configured with.

As shown in FIG. 13, the mesh member 40 is formed in a hollow cylindrical shape having a predetermined diameter, and as shown in FIG. It was formed on the entire surface of the member 40. In FIG. 12, an unexplained reference numeral 65 is a reflector surrounding the outside of the mesh member 40, 70 is a reflecting mirror for reflecting light generated from the electrodeless bulb 45, and 75 rotates the electrodeless bulb 45. And a motor.

Hereinafter, the operation of the microwave illuminating apparatus thus configured will be described. First, when power is applied from the outside, a high voltage is generated from the high voltage generator 25 and output to the microwave generator 30.
Generates microwaves. The microwaves generated in this manner are guided by the wave guide 35 and transmitted to the mesh member 40, and resonate in the mesh member 40 to excite the gas filled in the electrodeless bulb 45, and convert the gas into light energy. It is converted and emits light.

At this time, the mesh member 40 not only performs a function of blocking the microwaves from leaking out while resonating the microwaves, but also maximally reduces the light generated from the electrodeless bulb 45. It plays the role of releasing to the outside. When such an operation is performed, heat is generated in the high-voltage generating unit 25 and the microwave generating unit 30 due to loss of the high-voltage generating unit 25 and the microwave generating unit 30. Then, when the cooling fan 50 is driven, the cool air is discharged to the air guides 55 and 55 'in both directions, respectively, and the exhaust ducts 60 and 60' are cooled while cooling the high-pressure generator 25 and the microwave generator 30 respectively. And is discharged to the reflector 65 side.

Therefore, since the reflector 65 is also cooled, the reflecting mirror 70 installed in the mesh member 40 in the reflector 65 and heated by the heat generated from the electrodeless bulb 45 is also cooled. Here, since the reflector 65 is made of aluminum, heat transfer is quick, and therefore, the reflector 65 is immediately heated by the electrodeless light bulb 45 and immediately cooled by the air discharged through the exhaust ducts 60 and 60 ′. Since the cooling is performed, the reflection mirror 70 is rapidly cooled.

[0015]

However, in a microwave oven including such a conventional mesh member, in the case of a mesh member having a circular hole, the aperture ratio of the mesh member is reduced, so that the mesh member cannot be used from a heater or a lighting device. Because the transmittance of the output heat or light is reduced, the thermal efficiency of the heater is reduced, and in the case of a mesh member having a square hole, the diagonal of the square is long and the leakage of the electron wave is likely to occur. If the square hole is made small to prevent this, there is an inconvenience that the aperture ratio of the mesh member is reduced and the thermal efficiency of the heater is reduced.

In a conventional microwave illuminating device including a mesh member, since the mesh of the mesh member is formed in a square hole, it is difficult to realize a high aperture ratio, and the microwave blocking ratio is low. There was an inconvenience that the strength was reduced. The present invention has been made in view of such a conventional problem, and in a microwave device including a mesh member, a mesh of a mesh member used in the device is formed in a honeycomb-shaped hexagon, and an electronic device is formed. It is an object of the present invention to provide a microwave device including a mesh member capable of increasing a wave leakage blocking ratio, improving strength, and maximizing transmittance of a heat source or a light source passing through the mesh member.

[0017]

In order to achieve the above object, in a microwave device including a mesh member according to the present invention, a microwave device including a microwave generating means and a mesh member is provided. In the apparatus, the mesh member is formed in a mesh having hexagonal holes in a honeycomb shape, and configured to increase a microwave leakage blocking rate and to increase an aperture ratio related to a heat source or a light source transmission rate. It is characterized by:

[0018]

Embodiments of the present invention will be described below with reference to the drawings. In a microwave oven as a first application example of the microwave device including the mesh member according to the present invention, as shown in FIG. 1, a cooking chamber 1a which is disposed in a case 1 and on which cooking is placed and cooked. A turntable 2 rotatably installed on the inner bottom surface of the cooking chamber 1a and loading the food, a drive motor 3 installed below the turntable 2 and rotating the turntable 2, A high-frequency generating means 4 having a magnetron 5 and a wave guide 6 which are mounted on the outside of the cooking chamber 1a and output an electronic wave to the cooking chamber 1a; and which are mounted on the top of the cooking chamber 1a, And a heating or illuminating means 7 for supplying heat or a light beam toward 1a.

In the heating or illuminating means 7, the top of the cooking chamber 1 a is cut out to form a chamber 8 formed by a reflector 10 and a transparent ceramic 13.
A heating device or a lighting device 9 for generating light which is housed in the chamber 8 and a microwave generated from the magnetron 5 provided between the transparent ceramic 13 and the reflector 10. And a mesh member 100 that blocks external leakage.

In addition, the transparent ceramic 13 prevents the food to be cooked in the cooking chamber 1 from being scattered inside the chamber 8 and the fumes penetrating into the heater or the lighting equipment 9 in the chamber 8. The reflector 10 protects the heater or lighting device 9 and reflects the heat or light rays generated from the heater or lighting device 9 toward the inside of the cooking chamber 1.

In the mesh member 100 of the heating or lighting means 7, as shown in FIGS. 2 and 3, a mesh having hexagonal holes 110 is formed. Although the length can be adjusted, the hexagonal hole 110 is formed to have a width of 6 mm and a length of 7 mm, and the interval between them is preferably 1 mm.

Hereinafter, the operation of the microwave oven having the mesh member 100 according to the present invention will be described.
First, when the user applies power while the food is placed on the turntable 2 inside the cooking chamber 1a, the magnetron 5 and the heater or the lighting device 9 operate at the same time as the turntable 2 is rotated by the drive motor 3. At the start, an electron wave and heat or light are supplied to the food in the cooking chamber 1a.

Therefore, the food in the cooking chamber 1a is
While being rotated by the turntable 2, it is supplied with an electron wave and a heat ray or a light beam and is uniformly heated. At this time, heat or light rays generated from the heater or the lighting device 9 are supplied to the inside of the cooking chamber 1 through the mesh member 100 having the hexagonal holes 110, and the micro light generated from the magnetron 5 is supplied. The waves are prevented from leaking out of the cooking chamber 1 by the mesh member 100.

In this case, the heater or lighting equipment 9
Member 100 that has a decisive effect on the efficiency of the mesh
In order to confirm the performance of the present invention, an experiment was performed to measure the leakage blocking ratio and aperture ratio of electron waves for a mesh member having a conventional circular hole and a square hole and a mesh member having a hexagonal hole 110 of the present invention. The results are shown in Table 1 below.

[0025]

[Table 1]

As shown in Table 1 above, of the two indexes indicating the performance of the mesh member 100, the aperture ratio is:
Although the mesh member 100 of the present invention having the hexagonal holes 110 is lower than the conventional mesh member having the square holes, the electromagnetic wave leakage cutoff ratio is smaller than that of the conventional mesh member having the circular holes and the square holes. It can be seen that the mesh member is significantly higher.

As described above, when the opening ratio of the mesh member 100 of the present invention is higher than that of the conventional circular hole,
In order to improve the transmittance of a heat source or a light source of the heater or the lighting device 9, when a mesh member having an existing circular hole is used, the maximum temperature of the food is 157.5.
° C, the hexagonal hole 110 of the present invention
When the mesh member 100 having the above is used, the maximum temperature of the food increases to 178.1 ° C. in the same time.

Accordingly, in view of the cutoff rate and the aperture ratio of the electron wave, the mesh member 100 of the present invention having the hexagonal holes 110 can be used in the cooking chamber 1a to accommodate the chamber 8 in which the heater or the lighting device 9 is stored. In order to maximize the transmittance of the heater or the lighting device 9 while minimizing the leakage of electron waves therethrough, the thermal efficiency of the heater or the lighting device 9 is greatly improved to be significantly higher than that of the conventional mesh member. Excellent performance can be achieved.

On the other hand, as a second application example of the microwave apparatus including the mesh member according to the present invention, as shown in FIG. 4, the microwave apparatus is mounted on one side inside a hollow cylindrical case 20 as shown in FIG. A high-voltage generating unit 25 that receives a power supplied from the outside and generates a high voltage; and a microwave that is installed on a side of the high-voltage generating unit 25 and outputs a microwave by the high voltage generated from the high-voltage generating unit 25. A wave generator 30, a wave guide 35 for guiding the microwave output from the microwave generator 30, one end of which is inserted into the wave guide 35, and the other end protruding outside the case 20. The mesh member 20 that resonates the microwave guided through the wave guide 35
0, an electrodeless light bulb 45 housed inside the mesh member 200 and filled with a gas excited by microwaves resonating in the mesh member 200, and the case 20 corresponding to the mesh member 200. A cooling fan 50 installed on the lower side of the cooling fan 50 for cooling heat generated from the microwave generating unit 30 and the high-pressure generating unit 25, and formed continuously inside the case 20 on both sides of the cooling fan 50; The air discharged from the cooling fan 50 is guided to the microwave generator 30 and the high-pressure generator 25 to cool the air guides 55 and 55 ′, and the air guides 55 and 55 ′ are formed on both sides of the case 20. And exhaust ducts 60 and 60 ′ for discharging air that has cooled the wave generator 30 and the high-pressure generator 25, respectively.

The mesh member 200 is formed in a hollow cylindrical shape as shown in FIG. 5, and as shown in FIG. 6, a honeycomb-shaped hexagonal shape is formed on the peripheral wall surface of the cylindrical body. A mesh having holes 210 is formed. In addition, the size of the hexagonal hole 210 can be adjusted in length and width according to the intensity of the electromagnetic wavelength. t is preferably 1 mm.

The mesh member 200 forms a hexagonal hole 210 using an etching method, and cleans the surface corroded by the etching while increasing the reflectivity of microwaves. Perform plating. The operation of the microwave illuminating apparatus including the mesh member according to the present invention configured as described above is the same as the conventional one, and thus the description is omitted.

As is clear from the experimental values in Table 1, when the shape of the mesh member 200 is formed in the honeycomb-shaped hexagonal hole 210, the strength and the leakage and blocking rate of electron waves are lower than those of other shapes. There is an effect that the performance is excellent and the light transmittance of the electrodeless bulb 45 can be improved.

[0033]

As described above, in the microwave device including the mesh member according to the present invention, the mesh formed in the mesh member is formed into a honeycomb-shaped hexagonal hole, and the heat source or the light source is formed. This has the effect of increasing the aperture ratio associated with the transmission rate of the microwave, increasing the leakage blocking rate of the microwaves, and increasing the strength.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a structure of a microwave oven as a first application example of a microwave device including a mesh member according to the present invention.

FIG. 2 is a plan view showing the mesh member of FIG. 1;

FIG. 3 is a view showing the shape and dimensions of a hexagonal hole of the mesh member of FIG. 2;

FIG. 4 is a schematic sectional view showing a structure of a microwave illuminating device as a second application example of the microwave device including the mesh member according to the present invention.

FIG. 5 is a perspective view showing the mesh member of FIG. 4;

FIG. 6 is a view illustrating the shape and dimensions of a hexagonal hole of the mesh member of FIG. 5;

FIG. 7 is a cross-sectional view showing a structure of a microwave oven as an example of a microwave device including a conventional mesh member.

FIG. 8 is an enlarged view showing a chamber part of FIG. 7;

FIG. 9 is a plan view showing a conventional mesh member used for the chamber of FIG.

FIG. 10 is a view showing a shape and a size of a circular hole of the mesh member of FIG. 9;

FIG. 11 is a view showing the shape and dimensions of a square hole of another example of a conventional mesh member.

FIG. 12 is a cross-sectional view showing the structure of a microwave illuminating device as another example of a microwave device including a conventional mesh member.

FIG. 13 is an external view showing the mesh member of FIG. 12;

FIG. 14 is a view showing a shape of a square hole of the mesh member of FIG. 12;

[Explanation of symbols]

 1a ... Cooking room 2 ... Turn table 3 ... Drive motor 4 ... High frequency generating means 5 ... Magnetron 6, 35 ... Wave guide 7 ... Heating or lighting means 8 ... Chamber 9 ... Heater or lighting equipment 10 ... Reflecting plate 13 ... Transparent ceramic 20 ... Case 25... High-pressure generating part 30... Microwave generating part 45.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H05B 6/64 H05B 6/64 C 11/00 11/00 FF Term (Reference) 3K086 AA05 BA02 BA08 CB15 CC01 EA14 FA06 FA09 3K090 AA03 AA12 AB02 BA01 BB01 DA14 DA16 EB02 EB03 EB16 EB29 EB30 JB05 KA04 3L086 AA02 BA07 BB11 BB15 DA02

Claims (5)

[Claims] 1. A microwave device including a microwave generating means and a mesh member, wherein the mesh member is formed in a mesh having hexagonal holes in a honeycomb shape, and blocks microwave leakage. A microwave device configured to increase the efficiency and to increase an aperture ratio associated with a transmissivity of a heat or light source. 2. The microwave device according to claim 1, wherein the microwave device is a microwave oven including the mesh member having a mesh of hexagonal holes in a honeycomb shape formed on an upper surface of a flat plate. apparatus. 3. A microwave oven, wherein the microwave oven is rotatably installed on an inner bottom surface of the cooking chamber, and a turntable for loading the food, and a drive motor installed below the turntable to rotate the turntable. A high frequency generating means mounted on the outer side of the cooking chamber and having a magnetron and a wave guide for outputting an electron wave to the cooking chamber; and a top portion of the cooking chamber is formed by a notch and a reflector and a transparent ceramic. Chamber, a heater housed inside the chamber to generate heat or a lighting device to generate light, and a device installed between the transparent ceramic and the reflector to prevent external leakage of microwaves generated from the magnetron. 3. A heating or illuminating means comprising: a mesh member; Microwave devices. 4. The microwave apparatus according to claim 1, wherein the microwave device is a microwave illuminating device including the mesh member having a honeycomb-shaped hexagonal hole mesh formed on a peripheral wall of a hollow cylindrical network. The described microwave device. 5. A microwave illuminating apparatus comprising: a hollow cylindrical case; a high-pressure generating unit mounted on one side of the case and receiving a power supplied from the outside to generate a high voltage; A microwave generator installed at a side of the generator and outputting microwaves by high pressure generated from the high-voltage generator, a waveguide for guiding the microwave output from the microwave generator, and the wave; One end is inserted into the guide, the other end is protruded to the outside of the case, and a hollow cylindrical mesh member resonating microwave guided through the wave guide; and An electrodeless bulb that is housed therein and is filled with a gas that is excited by microwaves that resonate in the mesh member; and an electrodeless bulb installed below the case corresponding to the mesh member. A cooling fan configured to cool heat generated from the microwave generation unit and the high-pressure generation unit; and a microwave generation unit configured to continuously form the air discharged from the cooling fan inside the case on both sides of the cooling fan. An air guide for guiding and cooling the unit and the high-pressure generating unit, and an exhaust duct formed on both sides of the case to discharge air that has cooled the microwave generating unit and the high-pressure generating unit, respectively. The microwave device according to claim 4, comprising: