JP2003222339A - High frequency heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high frequency heating device capable of securing the cooling performance for electric components even if a sheet laid under the device is sucked to attach to the whole vent holes located under the body. <P>SOLUTION: The high frequency heating device comprises a body, a heating chamber provided inside the body to heat any object to be heated and having an opening in the front face, a bottom plate to form the bottom of the body and having vents there, a blower device installed in a position below the heating chamber and over the bottom plate for cooling the electric components to drive the heating device, and a bottom plate metal piece furnished at its end with an auxiliary vent right over the bottom surface in addition to the side faces and bottom surface located below the vents in the bottom plate, wherein even if the sheet laid under the body is sucked to attach to the vents in the bottom surface and side faces of the bottom plate metal piece, the cool air outside the body can be sucked in from the vent right over the bottom surface provided at the end of the bottom plate metal piece, so that it is possible to secure the cooling performance of the electric components. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cooling a high frequency heating device.

[0002]

2. Description of the Related Art A conventional high-frequency heating device will be described with reference to the drawings. FIG. 5 is an external perspective view of a conventional high-frequency heating device,
FIG. 6 is a vertical cross-sectional view of a conventional high frequency heating device, and FIG. 7 is an external perspective view of a bottom plate and a bottom plate metal fitting of the conventional high frequency heating device.

In FIG. 6, a heating chamber 2 for heating an object to be heated is provided inside a main body 1, and the bottom surface of the main body 1 is composed of a bottom plate 3 having ventilation holes on the bottom surface. A machine chamber 4 is provided below the heating chamber 2 and above the bottom plate 3, and a blower device 6 for cooling the electric components 5 for driving the high-frequency heating device is provided in the machine chamber 4, and the blower device is provided. 6, a blower device 6 is partitioned from the electrical component 5 that is the object to be cooled,
The blower device 6 is provided with a partition plate 7 for the purpose of sucking cool air outside the main body as much as possible to improve the cooling capacity. Below the ventilation holes of the bottom plate 3, bottom plate fittings 8 having ventilation holes on the bottom surface and side surfaces are provided. Again 9
Is a stand for the high-frequency heating device, 10 is a sheet for preventing the stand 9 from being contaminated by an object to be heated, or an antibacterial sheet for preventing cockroaches from being made of nylon or polyethylene of various thicknesses and masses. It is a thing. Next, the operation will be described. When the blower 4 operates, the blower 4 tries to take in air from everywhere, but inside the machine room 4, the blower 6 and the electric component 5 are partitioned by a partition plate 7. Therefore, most of the outside cool air is taken in from the ventilation holes of the bottom plate 3 through the ventilation holes on the bottom surface and the side surface of the bottom plate metal fitting 8 having a low intake resistance. At this time, the larger the suction force of the blower 6 is, and the smaller the mass of the seat 10 is and the thinner and softer it is, the more the seat 10 is sucked to the bottom surface of the main body 1. For example, when the seat 10 is adsorbed by the blower 6 only to the ventilation holes on the bottom surface of the bottom plate metal fitting 8, it becomes impossible to inhale through the ventilation holes on the bottom surface of the bottom plate metal fitting 8, but since the intake air on the bottom surface has disappeared, the ventilation holes on the side surface are eliminated. Since the intake pressure from the inside increases, the blower 6 can inhale the cool air outside the main body 1 regardless of adsorption to the bottom surface of the seat 10, and the cooling performance of the electric parts can be secured.

[0004]

However, in the above-mentioned conventional structure, when the size and quantity of the electric parts 5 are increased and the heat capacity is increased with the increase in output and function of the high-frequency heating device, the blower of the blower device is blown. In order to increase the capacity, it is necessary to increase the intake force as well.In that case, the seat laid on the stand will adsorb not only on the bottom surface of the bottom plate metal fittings but also on the ventilation holes on the side surfaces, and intake from outside It becomes sufficient, and the air blower draws in hot air from the gap throughout the machine room, and the intake air temperature rises. As a result, there is a problem that the cooling performance of the electric parts becomes insufficient and the electric parts are broken.

The case where the ventilation holes on the bottom surface and the side surfaces of the bottom plate fitting are closed by the sheet is the thickness of the laid sheet,
Since it depends on the mass as well, the conventional configuration of the related art is not sufficient to secure the cooling performance of the electric parts.

The present invention solves the above-mentioned conventional problems, and the thickness of the sheet laid on the stand even when the intake force of the blower increases with the increase in output and function of the high-frequency heating device. It is an object of the present invention to provide a high-frequency heating device capable of sucking cool air outside the main body into a blower device regardless of the mass and ensuring cooling performance of electric parts.

[0007]

In order to solve the above-mentioned conventional problems, the high-frequency heating apparatus of the present invention has ventilation holes on the bottom and side surfaces of the bottom plate fitting, and has a bottom surface at the end of the bottom plate fitting. On the other hand, ventilation holes are provided in the vertical direction as an auxiliary.

As a result, even when the intake force of the blower is improved due to the higher output and higher functionality of the high-frequency heating device, and despite the difference in the thickness and mass of the sheet laid on the stand. , Even if the seat is adsorbed on both the bottom and side air vents of the bottom plate metal fitting, the seat is not adsorbed by the vent hole as an auxiliary vertically upward with respect to the bottom surface of the short part of the bottom plate metal fitting and the cold air is sucked in. It becomes possible to secure the cooling performance of electric parts.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 constitutes a main body, a heating chamber provided inside the main body for heating an object to be heated having an opening at the front surface, a bottom surface of the main body, and a bottom surface. A bottom plate having a ventilation hole, a blower provided below the heating chamber and above the bottom plate to cool electric components for driving the high frequency heating device, and a side plate and a bottom surface below the ventilation hole of the bottom plate. By providing a bottom plate metal fitting with an auxiliary ventilation hole vertically upward with respect to the bottom surface at the end, when the intake power of the blower is improved as the high-frequency heating device has higher output and higher functionality. Also, the sheet laid on the stand is adsorbed to the ventilation holes on both the bottom surface and side surface of the bottom plate fitting by the suction force of the blower, and even when the intake is insufficient, the end of the bottom plate fitting is perpendicular to the bottom surface. Cool air outside the body is sucked in from the auxiliary ventilation holes in the upward direction. It can become possible, to ensure the cooling performance of the electrical component.

The invention as defined in claim 2 is particularly defined by claim 1.
By providing a ventilation hole on the side surface of the bottom plate described in 1 above, and eliminating the need for a bottom plate metal fitting, the sheet laid on the stand is adsorbed by the ventilation hole on the bottom plate bottom surface, and the blower is provided from the ventilation hole on the bottom surface of the bottom plate. Even if the cool air outside the main body cannot be sucked in, the cool air can be sucked in through the auxiliary ventilation holes provided on the side surface of the bottom plate, and the cooling performance of the electric parts can be secured.

The invention as defined in claim 3 is particularly defined by claim 1.
By providing a louver on the side surface of the bottom plate described in 1 above, and eliminating the need for a bottom plate fitting, the sheet laid on the stand is adsorbed by the vent holes on the bottom plate bottom, and the blower is the main body from the vent holes on the bottom plate bottom. Even if the outside cool air cannot be sucked in, the cool air can be sucked in from the auxiliary louver provided on the side surface of the bottom plate, and the cooling performance of the electric parts can be secured.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a longitudinal sectional view of a high frequency heating apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a first embodiment of the present invention.
3 is an external perspective view of a bottom plate and a bottom plate fitting in the embodiment of FIG.

In FIG. 1, a heating chamber 2 for heating an object to be heated is provided inside a main body 1, and a bottom surface of the main body 1 is composed of a bottom plate 3 having ventilation holes on the bottom surface. A machine chamber 4 is provided below the heating chamber 2 and above the bottom plate 3, and a blower device 6 for cooling the electric components 5 for driving the high-frequency heating device is provided in the machine chamber 4, and the blower device is provided. 6, a blower device 6 is partitioned from the electrical component 5 that is the object to be cooled,
The blower device 6 is provided with a partition plate 7 for the purpose of sucking cool air outside the main body as much as possible to improve the cooling capacity. Below the ventilation holes of the bottom plate 3, there are provided bottom plate fittings 8 having ventilation holes on the bottom surface and side surfaces, and additionally having auxiliary ventilation holes vertically upward with respect to the bottom surface. 9
Is a stand for the high-frequency heating device, 10 is a sheet for preventing the stand 9 from being contaminated by an object to be heated, or an antibacterial sheet for preventing cockroaches from being made of nylon or polyethylene of various thicknesses and masses. It is a thing. Further, an auxiliary vent hole vertically upward with respect to the bottom surface of the bottom plate fitting 8 is provided at a height such that the seat 10 will not be blocked by the seat 10 even if the seat 10 is rolled up by the intake force of the blower 6. .

The operation and action of the high-frequency heating device configured as described above will be described below.

First, when the blower 4 works to cool the electric parts 5, the blower 4 tries to take in air from everywhere, but inside the machine room 4, the blower 6 and the electric parts 5 are blown.
Since the partition plate 7 is used for partitioning, most of the bottom plate metal fitting 8 has a small intake resistance and the bottom plate 3 has ventilation holes on the bottom surface and side surfaces and a ventilation hole vertically upward with respect to the bottom surface of the end. Inhale cold air. At this time, if the seat 10 laid on the stand 9 is adsorbed to the bottom and side vents of the bottom plate fitting 8 by the suction force of the blower 6, it is not possible to take in air from the bottom and side vents of the bottom plate fitting 8. However, the auxiliary vent hole provided at the end of the bottom plate fitting 8 vertically upward with respect to the bottom surface allows the seat 10 to be sucked without being adsorbed. Also,
Since the bottom and side vent holes of the bottom plate fitting 8 are blocked to make it impossible to take in air, the intake pressure of the vent hole provided at the end of the bottom plate fitting 8 vertically above the bottom surface assists the seat 10. Is increased as compared to the case where the bottom plate fitting 8 is not adsorbed on the bottom surface and the side surface, the intake amount of the blower device 6 is the same as when the seat 10 is not adsorbed on the bottom plate fitting 8, and Electric components 5 because the cooling capacity does not change
The cooling performance can be secured.

As described above, in this embodiment, the seat 10 is provided with the bottom surface of the bottom plate fitting 8 by providing the bottom plate fitting 8 with the auxiliary ventilation holes vertically upward with respect to the bottom surface in addition to the bottom surface and the side surfaces. Even if suction is not possible due to adsorption to the side surface, the seat 10 is provided with the seat 10 through the ventilation hole provided in the blower 6 at the end of the bottom plate metal member 8 as an auxiliary vertically upward with respect to the bottom surface.
Since intake air with a higher pressure is obtained compared with the case where the electric components are not sucked in, it is possible to ensure the cooling performance of the electric parts.

(Embodiment 2) FIG. 3 is a vertical sectional view of a high frequency heating apparatus according to Embodiment 2 of the present invention. In FIG. 3, the difference from the configuration of the first embodiment is that the bottom plate 3 has a sheet 1 on the side surface.
0 is that an auxiliary vent is provided at a position where it is not blocked even if it is rolled up by the suction force of the blower 6, and the bottom plate fitting 5 is unnecessary. The same reference numerals as those in the first embodiment have the same structure, and the description thereof will be omitted.

First, when the blower 4 works to cool the electric parts 5, the blower 4 tries to take in air from everywhere, but inside the machine room 4, the blower 6 and the electric parts 5 are blown.
Since most of them are partitioned by the partition plate 7, most of the outside cool air is taken in through the ventilation holes of the bottom plate 3 with a small intake resistance. At this time, if the seat 10 laid on the stand 9 is adsorbed to the ventilation holes on the bottom surface of the bottom plate 3 by the suction force of the blower 6, it becomes impossible to intake air from the ventilation holes on the bottom surface of the bottom plate 3. The sheet 10 is not adsorbed to the auxiliary vent hole provided on the side surface of the sheet and can be inhaled. In addition, since the ventilation holes on the bottom surface of the bottom plate 3 are blocked to make it impossible to inhale air, the intake pressure of the ventilation holes provided as an auxiliary on the side surface of the bottom plate 3 is increased.
Since 0 increases as compared with the case where the bottom surface of the bottom plate 3 is not adsorbed, the intake amount of the air blowing device 6 is the same as that when the seat 10 is not adsorbed to the bottom plate 3, and the cooling capacity of the air blowing device 6 is reduced. Since it does not change, the cooling performance of the electric component 5 can be secured.

As described above, the bottom plate 3 is used in this embodiment.
In addition to the bottom surface of the bottom plate, by providing auxiliary ventilation holes on the bottom surface on the side surface, the blower 6 is provided on the side surface of the bottom plate 3 as an auxiliary even if the seat 10 is adsorbed by the bottom surface of the bottom plate 3 and air cannot be taken. As compared with the case where the sheet 10 is not sucked by the bottom plate 3 from the ventilation holes, intake air having a higher pressure is obtained, so that the cooling performance of the electric component can be secured.

(Embodiment 3) FIG. 4 is a vertical sectional view of a high frequency heating apparatus according to Embodiment 3 of the present invention. In FIG. 4, the difference from the configuration of the first embodiment is that the bottom plate 3 has a sheet 1 on the side surface.
An auxiliary louver is provided at a position where 0 is not blocked even if it is rolled up by the intake force of the blower 6,
This is the point that is unnecessary. The same reference numerals as those in the first embodiment have the same structure, and the description thereof will be omitted.

First, when the air blower 4 works to cool the electric parts 5, the air blower 4 tries to take in air from everywhere, but inside the machine room 4, the air blower 6 and the electric parts 5 are blown.
Since most of them are partitioned by the partition plate 7, most of the outside cool air is taken in through the ventilation holes of the bottom plate 3 with a small intake resistance. At this time, if the seat 10 laid on the stand 9 is adsorbed to the ventilation holes on the bottom surface of the bottom plate 3 by the suction force of the blower 6, it becomes impossible to intake air from the ventilation holes on the bottom surface of the bottom plate 3. The seat 10 is not adsorbed to the auxiliary louver provided on the side surface of the seat, and the seat 10 can be inhaled. When the seat 10 is not adsorbed to the bottom surface of the bottom plate 3 due to the intake pressure of the louver provided as an auxiliary on the side surface of the bottom plate 3 due to the fact that the ventilation holes on the bottom surface of the bottom plate 3 are blocked and the intake is impossible. The air intake amount of the blower device 6 is increased as compared with
Is the same as when the bottom plate 3 is not adsorbed, the blower 6
Since the cooling capacity of the electric component 5 does not change, the cooling performance of the electric component 5 can be secured.

As described above, the bottom plate 3 is used in this embodiment.
By providing auxiliary louvers on the side surface in addition to the bottom surface of the fan, even if the seat 10 is adsorbed on the bottom surface of the bottom plate 3 and air cannot be sucked, the air blower 6 is provided with a vent hole provided as an auxiliary on the side surface of the bottom plate 3. As compared with the case where the seat 10 is not sucked by the bottom plate 3, intake air having a higher pressure is obtained, so that the cooling performance of the electric component can be secured. .

[0024]

As described above, according to the invention described in claims 1, 2, and 3, the size and quantity of the electric parts 5 are increased with the increase in the output and the function of the high-frequency heating device, and the heat capacity is increased. When the air blowing capacity of the air blower is increased, even if the sheet laid on the table is adsorbed to the entire air vent of the air blower under the main body, the cool air outside the main body will be exhausted from the auxiliary air vent. Can be sucked in, and the cooling performance of electric parts can be secured.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a high frequency heating apparatus according to a first embodiment of the present invention.

FIG. 2 is an external perspective view of the bottom plate fitting in the first embodiment of the present invention.

FIG. 3 is a vertical sectional view of a high frequency heating apparatus according to a second embodiment of the present invention.

FIG. 4 is a vertical sectional view of a high frequency heating apparatus according to a third embodiment of the present invention.

FIG. 5 is an external perspective view of the first, second, third, and conventional high-frequency heating devices of the present invention.

FIG. 6 is a vertical sectional view of a conventional high-frequency heating device.

FIG. 7 is an external perspective view of a conventional bottom plate fitting.

[Explanation of symbols]

1 body 2 heating chambers 3 bottom plate 4 machine room 5 electrical components 6 blower 7 partition boards 8 Bottom plate bracket 9 stand 10 sheets

Claims (3)

[Claims] 1. A main body, a heating chamber provided inside the main body for heating an object to be heated having an opening on the front surface, a bottom plate constituting a bottom surface of the main body, and having a ventilation hole on the bottom surface, and the heating unit. An air blower provided below the chamber above the bottom plate to cool electric parts for driving the high frequency heating device, and below the ventilation holes of the bottom plate in addition to the side surface and the bottom surface, the end portion is vertically upward with respect to the bottom surface. A high-frequency heating device comprising: a bottom plate fitting having an auxiliary ventilation hole. 2. The high-frequency heating device according to claim 1, wherein the bottom plate has auxiliary ventilation holes on the side surface in addition to the bottom surface, and the bottom plate metal fitting is unnecessary. 3. The high-frequency heating device according to claim 1, wherein the bottom plate has ventilation holes on the bottom surface and louvers on the side surfaces, and the bottom plate fitting is unnecessary.