JPS6367101B2 - - Google Patents

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 Cooking appliances 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 appliances, the space for placing these cooking appliances has become limited. is subject to major restrictions.

Conventional heating cooking appliances such as microwave ovens are generally equipped with a heating chamber and an operating section to the right of the heating chamber.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 temperature in the heating chamber.

The reason why these operation 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 does not take into account the arrangement of various appliances in the kitchen. In other words, depending on where these heating cookers are placed, the door that covers the front of the heating chamber may need to open to the left or the right, and depending on the opening/closing direction of the door, the operating section may also open to the left. In some cases, it may be easier to operate the device if it is on the left side, but 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 operating section is usually located on the right side.
A heating cooking appliance having such a configuration has the disadvantage that it is extremely difficult to operate depending on the location where it is placed, and also requires a large installation space.

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 heating chamber and the external material, and although it is used as a place for installing heat insulating materials, various mechanical parts, and connecting wires, this space makes it difficult for the main body to The drawback remains that the effective volume of the heating chamber is relatively small relative to the external dimensions.

When determining the external shape of the main unit due to installation space constraints,
If we can secure a heating chamber volume that is as large as its external dimensions, the capacity of the heated object will increase accordingly.
This will ultimately lead to a reduction in heating time.
Also, 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.
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 has the drawback of requiring a larger installation area.

Furthermore, there have conventionally been examples in which an exhaust passage and an exhaust cover for exhausting water vapor and odor generated from the object to be heated in the heating chamber are provided outside the main body. In this case, since the exhaust cover itself is an appearance part, it is necessary to apply appropriate anti-rust treatment as an appearance part, and the front and rear dimensions of the product including the exhaust cover will be larger only at the part of the exhaust cover. The installation space required extra space for the exhaust cover to protrude. 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 conventional problems, and has an operating section that is easy to operate regardless of where the appliance is placed, has an extremely small external dimension compared to the size of the heating chamber, and has a small installation area. It is an object of the present invention to provide a configuration of a high-frequency heating device that reduces the size of the device.

Structure of the Invention In order to achieve the above object, the high frequency heating device of the present invention includes an exterior plate in which the upper surface and left and right side surfaces of the heating device main body are formed of a single plate in a substantially inverted U shape, and a bottom plate and a bottom plate located inside the exterior plate. The left and right side walls of the heating chamber are formed of a single plate in a substantially U-shape, a back plate, and a front plate having an opening for putting in and taking out the heated object. The heating chamber is formed by fixing both U-shaped ends of the side wall of the heating chamber to the inside of the exterior plate, and the space between the heating chamber and the side of the exterior plate is used as an exhaust passage, and an exhaust port is installed on the back plate or the exterior plate. In addition to making effective use of the double U-shaped space inside and outside, the upper surface of the heating chamber is an exterior plate, so there is no extra space above the upper surface of the heating chamber, and the height of the main body can be reduced. This makes it possible to make effective use of the installation space in the kitchen, as well as making it possible to reduce the front and rear dimensions of the product, compared to installing the exhaust cover outside the device body as in the past. The installation space in the kitchen can be reduced, and
The exhaust passage component is an interior component within the exterior panel, and can be subjected to rust prevention treatment as an interior component rather than as an exterior component, which has the effect of reducing costs.

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 a front plate, 2 is a back plate, and 3 is an exterior plate, which includes a top surface 3a, a left side surface 3b, and a right side surface 3.
A side wall 4 of the heating chamber 5 is formed inside the exterior plate 3 so that it has a substantially inverted U-shape.
An exterior plate 3 is provided on both upper end surfaces of the side wall 4 of the heating chamber 5.
The upper surface of the heating chamber also serves as the upper surface 3a of the exterior plate 3, 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 plane of is the opening lower end 1 of the front plate 1 of the heating chamber.
It is fixed on substantially the same plane as a.

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

On the right side wall 4c of the heating chamber 5, there is a heating chamber side wall exhaust punching 8 that exhausts water vapor and odor from the heated object in the heating chamber 4.The exhaust punching 8 is covered and the flame generated in the heating chamber is Exhaust labyrinth section 9 forming a labyrinth to prevent air from reaching the outside of the product
is fixed to the heating chamber side wall 4c, and an exhaust partition plate 10 for preventing exhaust gas from flowing into the electrical chamber 6 is also fixed to the heating chamber side wall 4c. The back plate 2 has punchings 7 for exhaust. Therefore, the exhaust gas and flame exit the exhaust punching 8 on the right side wall 4c of the heating chamber 5,
Exhaust gas passes through the exhaust labyrinth section 9 through a passage with the right side surface 3c of the exterior plate 3, and is exhausted from the exhaust punching 7 of the back plate 2 to the outside of the product.

Electrical control parts and the like are attached to the floor plate 11 of the main body of the apparatus, and are housed and fixed in the electrical room 6 through the opening at the bottom of the inverted U-shape of the exterior plate 3.

In FIG. 2, reference numeral 12 denotes a tray for placing the object to be heated, and is rotated by a motor 13.

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

According to the embodiment configured as above, the heating chamber 5
The bottom surface of the bottom surface is horizontally substantially flush with the lower end 1a of the opening of the front plate 1, making it easy to clean, making it easy to take in and take out the saucer 12, and also serving as the top surface of the heating chamber 5 and the top surface 3a of the exterior plate 3. Because
The effective volume of the heating chamber 5 can be made large relative to the external dimensions, and by arranging various electrical components at the bottom, the center of gravity of the main body is located downward, allowing for stable installation despite its light weight. Since the exhaust cover does not protrude outside the product, the front and rear dimensions of the product can be reduced, which has the effect of reducing the installation area.

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

(1) The operation section is located at the bottom of the main body so that it can be easily operated regardless of where the main body is placed.

(2) The top surface and the outside of the back surface of the heating chamber are the exterior of the main body, there are no extra voids, there are no other components, and the height of the main body is relatively and substantially low;
Effective use of installation space in the kitchen can be achieved.

(3) Since the top surface of the heating chamber also serves as the top surface of the exterior plate,
The weight can be reduced accordingly, and the material cost can also be reduced accordingly.

(4) Right side 3c of exterior plate 3 and right side 4 of heating chamber 5
By making good use of the space between C and C, an exhaust labyrinth section can be provided, and the front and rear dimensions of the product can be made smaller than when installing an exhaust cover on the outside of the device body as in the past, allowing for effective use of installation space in the kitchen. can be achieved.

(5) Electrical components are placed all at once on the floor plate of the main unit and stored in the electrical room on the exterior board, and most of the work can be done before assembling the parts and storing the wiring.
In addition to being easy to assemble, the center of gravity of the entire device is located at the bottom, 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 put in and take out objects to be heated and the saucer, and the inside of the heating chamber can be cleaned very easily. can.

(7) Since the exhaust labyrinth part is not provided externally but is provided inside the exterior plate, these parts do not need to be rust-proofed as an exterior plate, and can simply be treated as interior parts, reducing costs. greatly contributes to reducing

(8) Since the exhaust labyrinth part is housed inside the exterior plate without protruding from the back plate of the product as in the past, the external dimensions of the product, especially the front and rear dimensions, can be made smaller than before, making the product easier to use. The size of the package delivered to the customer can be reduced, reducing packaging costs and significantly lowering transportation costs.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of the exterior plate, heating chamber plate, etc. of a high-frequency heating device according to an embodiment of the present invention, FIG.
FIG. 3 is a cross-sectional view taken along line BB' of the main body of the heating device in FIG. 1. 1... Front plate, 2... Back plate, 3... Exterior plate, 4...
...Heating chamber side wall, 5...Heating chamber, 6...Electric room, 7
...Exhaust punching, 8...Heating chamber side wall exhaust punching, 9...Exhaust labyrinth section, 10...Exhaust partition plate, 11...Floor plate, 12...Saucer, 13...
Motor, 14...timer.

Claims (1)

[Claims] 1. An exterior plate in which the top surface and left and right sides of the heating device body are formed from a single plate in a substantially U-shape, and a heating chamber located within the exterior plate and in which the bottom surface and left and right side walls are formed from a single plate in a substantially U-shape. It is equipped with a side wall, a back plate, and a front plate having an opening for putting in and taking out the heated object, and the inner side of the upper surface of the outer plate is used as the upper plate of the heating chamber, and both end surfaces of the side walls of the heating chamber are fixed to the inner side of the outer plate. A high-frequency heating device having a configuration in which a heating chamber is formed by using a heating chamber, a space between a side wall of the heating chamber and a side surface of an exterior plate is used as an exhaust passage, and an exhaust port is provided on a back plate or an exterior plate.