JPS60263021A - High-frequency heating apparatus - Google Patents

Abstract

PURPOSE:To obtain a high-frequency heating apparatus of small size for which only a small installation space is needed, by bonding the side wall of a heating chamber to the ceiling part of an outer casing consisting of one sheet metal plate, and by forming an exhaust gas passage between both side walls of a heating chamber and an outer casing. CONSTITUTION:The outer casing panel 3 of a high-frequency heating apparatus, consisting of a top plate 3a, the left side wall 3b, and the right side wall 3c, is made of one sheet metal plate so as to form nearly a U-shape. The top plate 3a of an outer casing panel 3 serves both as the top plate of a heating chamber 5. The left side wall 4a, the bottom plate 4b, and the right side wall 4c of a heating chamber 5 are composed of one sheet metal plate so as to form nearly a U-shape. The horizontal bottom plate 4b is fitted to the lower edge 1a of the opening of a front panel 1 of heating chamber nearly on the same level with the edge. Exhaust gas and flames going out of punched holes 8 for exhaust gas, provided on the right side wall 4c of a heating chamber 5, once going to the front direction of an apparatus through an exhaust gas labyrinth 9, then flowing through the labyrinth 9 along the right side wall 3c of an outer casing panel 3, is exhausted from the exhaust outlet 7 provided at the back plate 2. The exhaust gas labyrinth is provided inside the outer casing panel in such a manner that the depth of the titled apparatus is shortened, and the installation space in the kitchen for the apparatus can be effectively utilized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the structure of a high frequency heating device such as a microwave oven.

Conventional configuration and its problems Heating cooking utensils such as microwave ovens are often placed near the cooking area in the kitchen, but due to housing conditions and the diversification of cooking-related utensils, it is difficult to place these cooking utensils in the kitchen. is subject to major restrictions.

Conventional heating cooking appliances such as microwave ovens are generally equipped with a booster chamber and an operating section to the right of the booster chamber, and the operating section is located at the front of the electrical chamber that houses the high-frequency generator and other electrical components. There are knobs such as a timer for setting the heating time and a dial for setting the heating chamber temperature.

The reason why these operating parts are located on the right side of the main body is based on the assumption that the majority of users are usually right-handed, and is not based on the placement of divine utensils in the kitchen. In other words, depending on where these heating cookers are placed, it is safe to have the door that covers the front of the heating chamber open either to the left or to the right, and depending on the opening/closing direction of the door, it may be safer to have the operation part on the left. Although it may be easier to operate, in reality there is no such thing as a device with a left-hand control section. Even if the door opens from the front, the operation section on the right side is customary.

Heating cooking utensils with such a configuration have the disadvantage of being extremely difficult to operate depending on the location, and
There was a problem in that it required a wide space for installation.

Recently, some devices have been seen in which the operation section is placed at the top or bottom of the main body to alleviate the above-mentioned drawbacks.

However, even in this case, the heating chamber is mainly constructed of a double-layer structure in which an external material is placed over the outside of the box.

In other words, there is a certain amount of space between the support chamber and the external material, and although it is used as a place for installing heat insulating materials, mechanical parts of the gods, connecting wires, etc., due to this space, the main body The drawback remains that the effective volume of the heating chamber is relatively small relative to the external dimensions.

When the external shape of the main body is determined by the constraints of the installation space, if a support chamber of the same size as the external dimensions can be secured, the capacity of the heated object will be increased by that amount, which will lead to a reduction in heating time. If a heating chamber with the same volume as a conventional heating chamber but without the above-mentioned voids could be created, it would have the advantage of helping to reduce the installation space, but in reality, if the external dimensions of the main body are determined by installation space constraints,
The volume of the heating chamber is proportionally smaller, and when the volume of the heating chamber is used as a reference, the external shape of the main body becomes larger, which necessitates a larger installation area.

Furthermore, there has been a conventional example in which an exhaust system for removing water vapor and odor generated from the object to be heated in the heating chamber is provided outside the main body. that time,
Since the exhaust cover itself is an exterior part, it is necessary to apply appropriate exterior surface treatment, and the
The rear dimensions became larger due to the exhaust cover, and additional installation space was required. Furthermore, even the packaging used to deliver the products to customers has become larger, increasing transportation costs.

Purpose of the Invention The present invention solves the above-mentioned problems of the conventional art, and has an operating section that is easy to operate regardless of where the instrument is placed, and has an extremely small external dimension compared to the size of the assisting chamber, resulting in a small installation area. The purpose of the present invention is to provide a configuration of a high-frequency heating device.

Structure of the Invention In order to achieve the above object, the high-frequency heating device of the present invention has an abbreviated-shaped heating chamber side wall on the top surface of the exterior plate, which is formed by treating the top surface and left and right side surfaces of the auxiliary device body as a single piece in a substantially U-shape. solid lS
In addition to forming an exhaust passage between the inner and outer double U-shapes, an exhaust port is provided on the exterior plate or back plate! This makes it possible to reduce the front and rear dimensions of the product, reduce the installation area, and reduce the cost by making the exhaust path parts an internal part and requiring only rust prevention treatment as an internal part. It has all these effects.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a housing portion of a high-frequency heating device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the device. 1 is the front plate, 2 is the back plate, 3 is the exterior plate, and the top surface 3
a, left side 3b, right side 3C are formed from one metal plate into a substantially U-shape, and inside the exterior plate 3, the side wall 4 of the boosting chamber 5 is provided, and the side wall of the heating chamber 5 is 4 is the exterior plate 3 on the top surface
It also serves as the top surface 3a, and the left side wall 4a, bottom surface 4b, and right side wall 4C are formed into a substantially U-shape by one metal plate, and the bottom surface 4b
The horizontal surface of the heating chamber is fixed substantially flush with the opening lower end 1a of the front plate 1 of the heating chamber.

Above the bottom surface 4b is a heating chamber 5, and below it is an electrical chamber 6 for storing electrical components.

The back plate 2 has punched holes for the exhaust lower.

The right side wall 4CK of the heating chamber 4 has a side wall exhaust punching hole 8 for completely discharging water vapor and odor from the object to be heated in the heating chamber 4.
A disconnection line is formed to cover the exhaust punching hole 8 and prevent the flame generated inside the refrigerator from reaching the outside of the refrigerator. The exhaust labyrinth section 9 is fixed, and an exhaust partition plate for preventing exhaust gas from flowing into the electrical room 6 is also fixed.

Therefore, the exhaust gas and flame exit the air punching 8 on the right side wall 4C of the heating chamber 5, flow once toward the front of the equipment in the exhaust labyrinth section 9, and then pass through the exhaust labyrinth section 9 to the right side of the exterior plate 3. Surface 3C
Exhaust gas is discharged from the exhaust lower part of the back plate 2 through the passageway between the exhaust gas and the like.

Next, electrical control parts, etc. are attached to the floor plate 11 of the electrical appliance main body, and from the opening [-1 part] of the inverted U-shaped lower part of the exterior plate 3,
It is fixed by storing it in the electrical room 6.

In FIG. 2, reference numeral 12 is a tray for placing the object to be energized at a low level, and is rotated by a motor 13.

14 shows a timer for setting a heating time as an example of the arrangement of operating parts.

According to the embodiment with the above-described configuration, the bottom surface of the boosting chamber 5 is approximately horizontally aligned with the opening lower end 1a of the front plate 1, making it easy to clean and easy to put in and take out the saucer 12, and improve usability. Since the upper surface of the heating chamber 5 serves as the upper surface 3a of the exterior plate 3, the effective volume of the heating chamber 5 can be increased relative to the external dimensions, and by arranging various electrical components at the bottom, the main body The center of gravity is located at a lower position, allowing for stable installation f=1 despite its light weight.

In addition, since the exhaust labyrinth part can be provided by making good use of the space between the right side surface 3C of the exterior plate 3 and the right side wall 4C of the boosting chamber 5, it is possible to create It has the effect that the front and rear dimensions of the front and back dimensions can also be made smaller.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) Since the operating section is located at the bottom of the main body, it can be easily operated at all times without being affected by the location of the main body.

(2) The outside of the top and back surfaces of the heating chamber is the outside of the main unit, there are no extra gaps, there are no other components, the height of the main unit is relatively and substantially low, and there is no installation space in the kitchen. can be used effectively.

(3) Since the upper surface of the heating chamber is parallel to the upper surface of the exterior plate, the weight can be reduced accordingly, and the material cost can also be reduced accordingly.

G4) Right side 3C of exterior plate 3 and right side 4C of force chamber 5
By making full use of the available space, an exhaust labyrinth section can be provided, and by installing an exhaust cover outside the main body of the device as in the past, the front and rear dimensions of the product can be reduced, making effective use of the installation space in the kitchen. I can figure it out.

(5) Electrical components are placed all at once on the main body's wooden panel, and then stored in an air chamber on the exterior panel 1. Most of the work can be done before assembling and storing the parts, which improves ease of assembly. In addition to being a good product, the center of gravity of the entire electrical appliance is located downward, allowing for extremely stable installation.

(6) Since the lower end of the front plate opening and the horizontal plane of the bottom of the heating chamber are approximately on the same plane, it is easy to take in and out objects to be applied and the saucer, and the inside of the heating chamber can be cleaned very easily. I can do it.

(7) Since the exhaust labyrinth section is not provided outside but is provided inside the exterior plate, these parts do not require external surface treatment as an exterior plate and can be simply treated with anti-corrosion treatment, contributing to cost reduction.

(8) Since the exhaust labyrinth part is housed within the exterior plate rather than protruding from the back plate of the product as in the past, the external dimensions of the product, especially the front and back dimensions, can be made smaller than before, making it easier to package the product for delivery to the customer. It can be made smaller, reducing the amount of packaging and forging required, and even greatly reduces transportation costs.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the exterior plate, heating chamber plate, etc. of the high-frequency energizing device according to the embodiment of the misfire, and Fig. 2 is an exploded perspective view of the
FIG. 3 is a longitudinal cross-sectional view taken along line AA'i in the figure, and FIG. 3 is a cross-sectional view taken along line BB' in FIG. 1 of the main body of the heating device. 1... Front and rear, 2. Back plate, 3... Exterior plate, 4...
・Auxiliary chamber side wall, 5... Heating chamber, 6... Electrical room, 7... Exhaust [ ], q - Exhaust punching hole, 9 Exhaust labyrinth section, 10... Exhaust partition plate, 11・Floor+rr
i-plate, 12...Receiver 1111.13 Motor, 14
...Timer 0

Claims (1)

[Claims] (1) An exterior plate in which the upper surface and left and right sides of the main body of the assisting chamber are formed from a single plate in a substantially U-shape; The heating chamber includes a chamber side wall, a back plate, a front plate having an opening for putting in and taking out the heated object, and a heating chamber formed by fixing the heating chamber side wall to an upper plate of the outer plate, and the heating chamber and the side surface of the outer plate A high-frequency heating device that uses the space as an exhaust passage and has an exhaust port on the back plate or exterior plate.