KR20040061365A - A Front Part Structure For Ventilation Hooded Microwave Oven - Google Patents

Abstract

PURPOSE: A front part structure of a microwave oven is provided to reduce the number of installation components of protective panels, to promote convenience of production, and to prevent deformation of manufactures through improvement of the strength of the front part of the microwave oven. CONSTITUTION: A front part structure of a microwave oven comprises a front plate(150) constituting the front of a cavity assembly(100); a left protective panel(153) extended upward from the left upper end of the front plate and integrated with the front plate; and a right protective plate(155) extended upward from the right upper end of the front plate and integrated with the front plate. Plural vents(153a) are formed to the left protective panel. Plural vents(155a) are formed to the right protective panel.

Description

A Front Part Structure For Ventilation Hooded Microwave Oven}

The present invention relates to a microwave oven, and more particularly, to a front structure of a microwave oven provided with a protection panel that enables smooth air flow and prevents noise and safety accidents.

1 is an exploded perspective view of a conventional microwave oven, Figure 2 is a front view showing the front structure of a conventional microwave oven.

The hood-use microwave oven shown in FIG. 1 is installed above the gas oven range (not shown). The hood-use microwave oven has a function of sucking air containing heat and moisture generated when cooking using a gas oven range installed below and discharging it to the outside of the microwave oven.

In the microwave oven, the cavity assembly 1 serves as a frame, and the base plate 5 forms both sides of the bottom surface of the cavity assembly 1, and the top plate 7 faces the top surface of the cavity assembly 1. Form. The front plate 8 and the back plate 9 form a front and a rear surface of the cavity assembly 1, respectively.

In FIG. 2, an outer casing 1 ′ is covered on an upper portion of the cavity assembly 1 to form an outer appearance of the upper surface and both sides of the microwave oven. Therefore, a space for air flow is formed between the top surface of the outer casing 1 ′ and the top plate 7. In addition, an opening 40 corresponding to the air flow space is formed at an upper portion of the front plate 8 between the outer casing 1 ′.

In the center of the cavity assembly 1, a cooking chamber 10 for heating a cooking object is provided, and an electrical equipment chamber 20 is provided on the right side of the cooking chamber 10. In the electric compartment 20, electric components such as a magnetron 21 for generating a macrowave irradiated to the cooking chamber 10 and a high voltage transformer 23 for generating a high voltage current required for high pressure oscillation of the magnetron are mounted. do. In addition, a cooling fan 25 that sucks external air is installed in the upper part of the electric compartment 20 to cool the electric component.

In the upper rear end of the top plate 7, an exhaust fan assembly 31 for generating an air flow for discharging air circulated in the microwave oven is mounted. In addition, an exhaust duct 33 for guiding air discharged to the outside of the microwave oven is provided at the center of the front top plate 7. Here, the exhaust duct 33 includes side wall portions 35 and 37 which are erected on both sides of the exhaust fan assembly 31, and is integrally injection molded by synthetic resin.

As shown in FIG. 2, air passing through the exhaust duct 33 is discharged to the outside of the microwave oven through the exhaust duct 33 to the central portion of the opening 40. The opening 40 allows smooth air flow into and out of the microwave oven, but noise such as electromagnetic waves may leak through the opening 40, and there is a risk of a safety accident.

Therefore, the left side protection panel 43 and the right side protection panel 47 are mounted in the opening 40 to block noise and to form a user's safety and the appearance of the product.

The left protective panel 43 forms a rectangular protective wall corresponding to the shape of the opening 40, and the left protective panel 43 has a plurality of through holes 45 for air flow.

The left protection panel 43 is manufactured separately from the front plate 8 and is mounted to the opening 40 at the upper left side of the front plate 8 during the assembly of the cavity assembly 1.

On the other hand, the upper right opening 40 of the front plate is equipped with a right protective panel 47 to protect the appearance of the microwave oven and to ensure the safety of the user, the right protective panel 47 has a plurality of through holes (49) ) Is formed.

In addition, air for circulating the inside of the microwave oven is sucked into the through hole 49 of the right protective panel 47 by the upper cooling fan 25 of the electric chamber 20. The air sucked into the electric compartment 20 cools the electric component and a part of the air is introduced into the cooking compartment 10.

The right protection panel 47 is manufactured separately from the front plate 8 like the left protection panel 43, and is mounted in the opening 40 in the assembly process of the cavity assembly 1.

However, the hood-use microwave oven having the above structure had the following problems.

That is, the left protective panel 43 and the right protective panel 47 are manufactured separately from the front plate 8 to prevent noise such as EMI and promote the safety of the user, and are installed in the opening 40. In this case, the production cost increases because the number of parts required in the installation process of each protection panel increases, and the assembly process is complicated, resulting in a problem of lowering productivity.

In addition, there is a problem that the quality of the product is degraded due to the shape deformation of the protective panel installation portion during the transport and storage of the microwave oven.

An object of the present invention is to implement a front structure of a microwave oven which can reduce the number of installation parts of the protective panel, and can facilitate production.

Another object of the present invention, to improve the strength of the microwave oven front portion to implement a front structure of the microwave oven that can prevent deformation of the product.

1 is an exploded perspective view of a common hood microwave oven.

Figure 2 is a front view showing the front structure of a conventional microwave oven.

Figure 3 is an exploded perspective view showing the configuration of a preferred embodiment of the front structure of the microwave oven according to the present invention.

* Description of the symbols for the main parts of the drawings *

100 ........ Cavity assembly 110 ........ Cooking room

120 ........ Electric battle room 141 ........ Exhaust fan assembly

142 ........ Exhaust duct 145 ........ Top plate

150 ........ Front Plate 151 ........ Exhaust

153 ........ left protective panel 153a ..

155 ........ Right protection panel 155a ..

The front part structure of the microwave oven according to the present invention for achieving the above object is a front plate for forming a front surface of the cavity assembly; A left protective panel extending upward from an upper left side of the front plate and integrally formed with the front plate and having a plurality of through holes; And extending from the upper right side of the front plate to the upper side, is formed integrally with the front plate, and comprises a right protective panel formed with a plurality of through holes.

According to the present invention of the above configuration, each protective panel is formed integrally with the front plate, it is possible to reduce the number of parts required, to simplify the production process to improve the productivity. In addition, the strength of the front plate can be improved to prevent deformation during product movement and storage.

Hereinafter, the configuration of a preferred embodiment of the structure of a front portion of a microwave oven according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view showing the configuration of a microwave oven according to the present invention. As shown, the upper rear end of the cavity assembly 100 is equipped with an exhaust fan assembly 141 for generating an air flow to discharge the air circulated through the inside of the microwave oven. And, in front of the exhaust duct 142 for guiding the air discharged to the outside of the microwave oven is installed in the center of the top plate 145.

In the present exemplary embodiment, an exhaust port 151 through which air circulating inside the microwave oven is discharged is formed on the front plate 150. Here, the exhaust port 151 needs to secure a proper area for smooth flow of air, and in the present embodiment, the exhaust port 151 has a long rectangular shape left and right.

The exhaust duct 142 is equipped with a filter (not shown) for removing foreign matter from the discharged air. In addition, the filter should be replaced with a certain period of time, the replacement of the filter is performed through the exhaust port (151). Therefore, it is preferable for the safety of the user to install a removable bracket (not shown) or the like in the exhaust port 151 so as to replace the filter.

The left and right portions of the exhaust port 151 should also allow smooth entry and exit of air circulating inside the microwave oven, but if left unattended, noise such as a safety accident or electromagnetic waves may leak. This is also undesirable for protecting the appearance of the microwave oven.

Therefore, the left side protection panel 153 is formed on the left side of the exhaust port 151 to block noise and protect external appearance. The left protection panel 153 extends upward from an upper left portion of the front plate 150 and is integrally formed with the front plate 150.

By the way, since the left protective panel 153 should be to facilitate the flow of air, the left protective panel 153 is formed with a plurality of through-holes (153a) for the air flow.

In this embodiment, not only the exhaust port 151 but also the through hole 153a of the left protective panel 153 forms a passage through which the air exhausted by the exhaust fan assembly 141 is discharged to the outside of the microwave oven.

The left protection panel 153 can be changed in structure depending on the internal structure of the rear portion, it is also possible to change the size and position of the through hole (153a).

On the other hand, the right side of the exhaust port 151 is a right side protection panel 155 for protecting the appearance of the microwave oven and the prevention of safety accident is formed extending from the upper right side of the front plate 150 to the upper side. In addition, the right protective panel 155 has a plurality of through holes 155a formed over the entire surface thereof so that external air can flow smoothly to the electric chamber 120.

Since the left protective panel 153 and the right protective panel 155 are each formed integrally with the front plate 150, a separate additional process for manufacturing is not required, and a separate part for mounting thereof is provided. You do not need it.

Hereinafter, the operation of the front structure of the microwave oven having the above configuration will be described.

When cooking using a microwave oven, outside air is sucked into the electrical equipment compartment 120 through the through hole 155a of the right protective panel 155 to cool the electronic components, and then flows into the cooking chamber 110 again. .

On the other hand, during cooking by the gas oven, the exhaust fan assembly 141 also operates as cooking proceeds to generate airflow. Air, including heat and moisture discharged from the gas oven, is introduced into the exhaust fan assembly 141 through an inlet (not shown) formed at the bottom of the cavity assembly 100. Air exhausted from the exhaust fan assembly 141 is discharged to the outside of the microwave oven through the exhaust hole 151 or the through hole 155a of the left protective panel 153.

According to the present embodiment, noise, such as EMI, is prevented by both side protection panels 153 and 155 while the microwave oven is in operation, and the risk of a safety accident can be prevented.

According to the present invention, the left protection panel 153 and the right protection panel 155 of the microwave oven are integrally formed with the front plate 150, and through holes 153a and 155a are formed in each of the protection panels 153 and 155, thereby providing a cavity assembly ( It is possible to reduce the number of parts required for assembly of the assembly 100 and to simplify the manufacturing process. In addition, the basic technical idea is to improve the strength of the microwave oven front part to prevent deformation of the product and to protect the appearance.

The scope of the present invention is not limited to the above embodiments but is determined by the matters described in the claims, and it is obvious that the present invention includes various modifications made by those skilled in the art in the same range as the matters described in the claims.

According to the present invention having the above structure, since the left and right protection panels are formed integrally with the front plate, the number of parts due to the installation of the protection panel can be reduced, and the manufacturing process is simplified, thereby improving productivity. This results in cost savings.

In addition, the left side protection panel and the right side protection panel are integrally formed with the front plate, which improves the strength of the front part of the microwave oven and prevents the deformation of the product during transportation and storage, improving appearance satisfaction and improving quality. It becomes possible.

Claims (1)

A front plate forming a front surface of the cavity assembly; A left protective panel extending upward from an upper left side of the front plate and integrally formed with the front plate and having a plurality of through holes; And Extending from the upper right side of the front plate to the upper side, integrally formed with the front plate, the front portion structure of the microwave oven including a right side protection panel formed with a plurality of through holes.