JPH04359888A - High frequency heating device - Google Patents

Abstract

PURPOSE:To enhance the cooling efficiency of a high frequency heating device and prevent a radiation noise or an undesired sound generated in the high frequency heating device from leaking outward by providing an air guide in an integrated high frequency heating device, connecting the high frequency heating device of a high frequency heating cooking device. CONSTITUTION:A high frequency heating device 21 is composed of a microwave generator 22, an electric power converting device 23, a cooling means 26, and a storing part 27 for storing them; a first air guide 43, for introducing an air being inhaled by the cooling means 26, and a second air guide 41, for introducing an air being discharged from the cooling means 26, are mountably provided in the high frequency heating device, thereby it is possible to prevent a radiation noise or an undesired sound generated in the high frequency heating device from leaking outward.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency cooking device that heats items using microwaves.

0002

[Prior Art] As shown in FIG. 2, a conventional high-frequency heating device 1 of a high-frequency cooking device is composed of a microwave generator 2 such as a magnetron, a step-up transformer, a switching element, a capacitor, a coil, etc. A cooling means 6 consisting of a power converter 3 that generates a high voltage for driving a microwave generator 2, a cooling fan 4, and a motor 5 that rotates the cooling fan 4; and a storage section 7 made of a conductive member. The microwave generator 2, the power converter 3, and the cooling means 6 are configured to be housed in a housing section 7. The housing 7 is attached to waveguide means 8, such as a waveguide. The storage section 7 is provided with an intake port 9 and an exhaust port 10. The heating chamber 11 is provided with an air intake port 12 . Further, a large number of holes 14 are provided on the back plate 13 of the high frequency cooking device.

[0003] An air guide 15 is provided between the exhaust port 10 of the storage section 7 and the inlet port 11 of the heating chamber 12, and is designed to guide heated exhaust gas into the heating chamber and suppress dew condensation inside the heating chamber. There is.

0004

However, in the conventional configuration described above, air outside the storage section 7 is sucked into the storage section 7 by the cooling fan 4. There is a rear panel 1 on the outside of the storage section 7.
Air is supplied through holes 14 made in 3. On the other hand, the surroundings of the storage section 7 are heated by heat generated by the microwave generator 2, power converter 3, etc. stored in the storage section 7. Therefore, there is a problem that a part of the heated air around the storage section 7 enters the intake port 9 of the storage section 7 and the cooling efficiency of the microwave generator 2 and the electric/land converter 3 decreases.

[0005]Also, a large number of holes 14 are provided in the back plate 13 to allow the heated air around the storage section 7 to be released outside as quickly as possible, but this solves the problem of radiant noise and noise leaking outside. had.

The present invention is intended to solve the above-mentioned problems, and aims to improve the cooling efficiency of a high-frequency heating device and reduce leakage of radiation noise and noise to the outside.

[0007]

Means for Solving the Problems In order to achieve the above object, the high frequency heating device of the present invention includes a microwave generator, a power converter for supplying power to the microwave generator, and a power converter for supplying power to the microwave generator. a storage section made of a conductive member that stores a cooling means for cooling the power converter; and a first air guide that guides air sucked into the storage section; It is provided so that it can be freely attached to the storage section.

[0008] Also, a second air guide is provided to guide air discharged from the storage section, and the air guide is configured to be freely attachable to the storage section.

[0009]

[Operation] With the above-described structure, the present invention can prevent heated air from being sucked into the storage section, and can suppress radiation noise and noise emitted from the high-frequency heating device from leaking to the outside.

0010

[Embodiment] An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, the high frequency heating device 21 is
A microwave generator 22 such as a magnetron, a power converter 23 that is composed of a step-up transformer, a switching element, a capacitor, a coil, etc. and generates a high voltage to drive the microwave generator 22, and a cooling fan 24. The microwave generator 22, the power converter 23, and the cooling means 26 are housed in the housing 27. be done. The storage portion 27 is provided with an exhaust port 29 and an intake port 30. Exhaust port 29
A second air guide 41 is fixed with a screw 42 between the air intake port 32 and the air intake port 32 provided in the heating chamber 31. Storage part 2
A first air guide 43 is fixed with a screw between the intake port 30 of No. 7 and the back plate 33 of the high-frequency cooking device. Portion 40 of the back plate 33 that is in contact with the intake part of the first air guide 43
An intake hole 34 is provided in the.

According to the above configuration, the air sucked into the storage section 27 by the cooling fan 24 is supplied from the intake hole 34 of the back plate 33 that is remote from the storage section 27, passes through the air guide 43, and enters the storage section 27. 27, so that heated air near the storage section 27 is not sucked in.

Furthermore, since the opening area of the intake hole 34 of the back plate 33 is reduced, leakage of radiant noise and noise to the outside can be reduced.

Furthermore, since the second air guide 41 and the first air guide 43 can be freely attached to the storage section 27, the same high-frequency heating can be achieved by simply changing the second air guide 41 and the first air guide 43. The device 21 can be attached to another high frequency cooking device.

[0015]

As explained above, the high frequency generator of the present invention includes a microwave generator, a power converter for supplying power from a commercial power supply or a battery to the microwave generator, a cooling means, and a conductive and an air guide for guiding air sucked into the storage part, the microwave generator, the power converter, and the cooling means are built into the storage part, and the 1
The air guide is configured to be freely attached to the storage section, and further includes a second air guide that guides air discharged from the storage section, and the second air guide is configured to be freely attached to the storage section. Therefore, the heated air around the storage part is not sucked in, and the cooling efficiency of the high-frequency heating device can be increased. Furthermore, since the number of openings on the back side of the high-frequency heating cooker is small, leakage of radiation noise and noise to the outside can be suppressed.

Furthermore, a first
The air guide and the second air guide attached to the exhaust side can be attached to the storage section, so all you have to do is change the shape of the first air guide attached to the intake side and the second air guide attached to the exhaust side. The same high frequency heating device can be attached to another high frequency cooking device.

[Brief explanation of drawings]

FIG. 1 is a three-dimensional perspective view of a high-frequency heating device of a high-frequency cooking device according to an embodiment of the present invention.

[Fig. 2] Three-dimensional perspective view of a high-frequency heating device of a conventional high-frequency heating cooker

[Explanation of symbols]

21 High frequency heating device 22 Microwave generator 23 Power converter 26 Cooling means 27 Storage section made of conductive material 41 Second air guide 43 First air guide

Claims (2)

[Claims] 1. Consisting of a conductive member housing a microwave generator, a power converter for supplying power to the microwave generator, and cooling means for cooling the microwave generator and the power converter. 1. A high-frequency heating device comprising: a storage section, and a first air guide that guides air sucked into the storage section, the first air guide being freely attachable to the storage section. 2. The high-frequency heating device according to claim 1, further comprising a second air guide for guiding air discharged from the storage section, the air guide being freely attachable to the storage section.