KR200340873Y1 - A fixing structure of tray motor for a microwave oven - Google Patents

Abstract

The present invention discloses a tray motor fixing structure for rotating a tray on which a cooking vessel is placed. According to a preferred embodiment of the present invention, in the tray motor fixing structure for rotating the tray located on the inner surface of the cavity is divided into a cooking compartment for cooking food and the electric compartment, a predetermined portion on the bottom plate of the cavity Protrudes inwardly toward the cooking chamber and extends a coupling part having fastening holes formed at both sides thereof, and fastens the fastening screw from the lower side of the tray motor to the fastening hole so that the tray motor is installed on the bottom surface of the coupling part. The tray motor is fixedly installed on the bottom plate of the cavity, and according to the present invention, a separate motor bracket is not required, thereby reducing production cost and improving assembly performance. In particular, the motor bracket and the motor bracket are not required. The welding process between the tray motors is not involved, which improves workability. Were, there is an effect, such as to facilitate the replacement of the tray motor and the A / S.

Description

A FIXING STRUCTURE OF TRAY MOTOR FOR A MICROWAVE OVEN}

The present invention relates to a tray motor fixing structure of a microwave oven, and in detail, the coupling part drawn on the bottom plate of the cavity is extended to facilitate fixing of the tray motor, and the number of parts for fixing the tray motor is reduced, thereby reducing the production cost. The present invention relates to a tray motor fixing structure of a microwave oven capable of improving saving and assembly.

In general, the microwave oven is a device that heats food by high frequency oscillation from the magnetron. The microwave oven is equipped with a magnetron, and the primary and secondary induction coils of the high-voltage transformer installed on the bottom of the electrical chamber are mutually induced. Is applied to the magnetron, and the high frequency oscillated from the magnetron is irradiated into the cooking chamber through the waveguide to cook the food.

The microwave oven is a control panel installed to control a variety of functions and doors formed on the front of the cavity to form a cooking chamber, and to surround the sides and top of the cavity to form the electrical component to which each electric component is assembled. Consists of.

The cavity includes a front plate forming an upper surface of an electric equipment section, a back plate forming a rear surface of a cooking compartment, a side plate forming both sides and a bottom surface of the cooking compartment, and a bottom surface surrounding the lower part of the side plate and forming a bottom surface of the electrical equipment section. Join the plates in turn. When combined as described above, the outer box of the microwave oven is wrapped to assemble the outer box, the bottom plate and the back plate with a plurality of fastening screws.

On the other hand, the bottom of the cooking chamber is provided with a tray on which the cooking vessel is placed, and a tray motor for rotating the tray is installed at the bottom of the cooking chamber so that the cooking vessel placed thereon is rotated along the tray, thereby irradiating the cooking chamber with high frequency. It is composed of a structure that is uniformly delivered to the food in the container and heated.

In addition, the microwave is a multi-functional microwave that can be combined with a simple function microwave that defrosts or cooks food using only high-frequency oscillating magnetron, and grill and oven cooking in addition to cooking by high-frequency by installing heaters in the upper and lower parts of the cooking chamber. It is divided into a stove.

In addition, the control panel is installed on the front of the electric room of the microwave oven, which is divided into simple functions and multi-functions. The control panel is a membrane keyboard or an adjustment knob, which is an input device for controlling the functions of the microwave oven. It consists of a button for opening the door, and a display window for displaying the operation status and set functions of the microwave oven.

3 is a cross-sectional view illustrating a tray motor fixing structure of a conventional microwave oven, as shown, a hub hole 122 is formed in the cooking chamber bottom plate 120, and a motor bracket 130 is formed on the bottom surface of the cooking chamber bottom plate 120. ) Is fixed by welding, and the tray motor 140 is fixedly installed by the fastening screw 150 on the bottom surface of the motor bracket 130.

Subsequently, the motor shaft 142 of the tray motor 140 is arranged in the hub 160 inserted into the hub hole 122 of the cooking chamber bottom plate 120.

Reference numeral 132 is a shaft hole formed in the motor bracket 130 is inserted into the motor shaft 142 of the tray motor 140.

In such a microwave oven, when looking at the assembly structure of the tray motor 140 which is the driving source for rotating the tray 170, a predetermined space between the cooking chamber bottom plate 120 and the bottom surface 110 of the cavity 100, The motor bracket 130 is positioned to form an additional portion.

Therefore, the motor bracket 130 is welded and fixed to the cooking chamber bottom plate 120 and the plurality of fastening screws 150 are screwed to the motor bracket 130 from the lower portion of the tray motor 140, so that the tray motor 140 is connected to the motor. It is fixed to the bracket 130.

However, in the conventional technology, the motor bracket 130 must be provided to fix the tray motor 140, thereby increasing the production cost and lowering the assemblability due to the addition of parts. In particular, the tray motor 140 is fixed. In order to involve the assembly process of welding the motor bracket 130 to the lower surface of the cooking chamber bottom plate 120 has caused a decrease in productivity.

The present invention has been devised to solve the above problems, the object of the present invention is easy to fix the tray motor, the number of parts for fixing the tray motor is reduced to reduce the production cost and improve the assembly The purpose is to provide a tray motor fixing structure of the stove.

1 is a cross-sectional view showing a tray motor fixing structure of a microwave oven according to a preferred embodiment of the present invention;

2 is a second embodiment according to the present invention,

3 is a cross-sectional view showing a tray motor fixing structure of a conventional microwave oven.

<Description of the code | symbol about the principal part of drawing>

10: cavity 20: bottom plate

22: coupling portion 23: fastening hole

30: cooking chamber 60: tray

70: tray motor 80: tightening screw

Technical problem of the present invention for achieving the above object is

In the tray motor fixing structure for rotating the tray located on the inner side of the cavity that is divided into a cooking chamber for cooking food and the electrical equipment compartment,

A predetermined portion on the bottom plate of the cavity protrudes inwardly toward the cooking chamber and extends a coupling portion having fastening holes formed at both sides thereof;

Fastening the fastening screw into the fastening hole from the lower side of the tray motor so that the tray motor is installed on the bottom surface of the coupling portion,

It is achieved by providing a tray motor fixing structure of a microwave oven, characterized in that the tray motor is fixed to the bottom plate of the cavity.

Preferred embodiments of the present invention having the features as described above will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a tray motor fixing structure of a microwave oven according to a preferred embodiment of the present invention, the cavity 10 is divided into a cooking chamber 30 and the electric compartment (not shown), The tray 60 on which the cooking vessel is placed on the bottom of the cooking chamber 30 and the tray motor 70 for rotating the tray 60 are fixedly installed by fixing means.

Subsequently, a magnetron for oscillating high frequency and a high voltage transformer are installed in the electrical chamber of the cavity 10.

In the fixing structure for fixing the tray motor 70 according to the present invention, as shown in FIG. 1, a predetermined portion on the bottom plate 20 of the cavity 10 protrudes inward toward the cooking chamber 30 ( 22 is formed to extend, and fastening holes 23 are formed at both sides of the coupling part 22.

In forming the coupling part 22, it is preferable to mold integrally by drawing the bottom plate 20 of the cavity 10 upward.

Then, the fastening screw 80 is screwed from the lower side of the tray motor 70 toward the fastening hole 23 so that the tray motor 70 can be installed on the bottom surface of the coupling portion 22.

Meanwhile, a hub hole 43 is formed in the cooking chamber bottom plate 40 in which the tray 60 is installed, and the motor shaft 72 of the tray motor 70 is inserted into the hub hole 43 of the cooking chamber bottom plate 40. It is built in the hub 50 which becomes.

Reference numeral 24 is a shaft hole is formed in the coupling portion 22 is inserted into the motor shaft 72 of the tray motor 70.

Referring to the assembly process of the present invention tray motor configured as described above is as follows.

First, the tray motor 70 is fixedly installed on the bottom plate 20 of the cavity 10. That is, the tray motor 70 is positioned on the bottom of the coupling portion 22 protruding inwardly to the bottom plate 20 of the cavity 10. At this time, the motor shaft 72 of the tray motor 70 is inserted from the bottom of the shaft hole 24 to the top.

In this state, the tray motor 70 is fixed to the bottom plate 20 of the cavity 10 by screwing the fastening screw 80 toward the fastening hole 23 from the lower side of the tray motor 70. In order to perform the role of the motor bracket by drawing the bottom plate 20 itself of the cavity 10 without the need for a separate motor bracket.

On the other hand, Figure 2 is a second embodiment of the present invention, which is such that the tray motor 70 is fixed to the upper surface of the coupling portion 22 is drawing processing on the bottom plate 20 of the cavity 10, the action is As described above.

As described in detail above, according to the tray motor fixing structure of the present invention, a coupling part drawn on the bottom plate of the cavity is formed and the tray motor is fixedly installed on the coupling part, thereby eliminating a separate motor bracket, thereby reducing production cost. And assembling performance can be improved, and in particular, since the motor bracket is not required, the welding process between the motor bracket and the tray motor is not accompanied, thereby improving workability, and it is easy to replace the tray motor and A / S. It can be effective.

The invention has been shown and described with respect to a specific preferred embodiment, but the invention is not limited to the embodiment described above, the field to which the subject innovation belongs without departing from the gist of the subject innovation claimed in the utility model registration claims Anyone of ordinary skill in the art would be able to make various modifications.

Claims (1)

In the tray motor fixing structure for rotating the tray 60 located on the inner side of the cavity 10 is divided into the cooking chamber 30 for cooking food and the electrical equipment compartment, The predetermined portion on the bottom plate 20 of the cavity 10 protrudes inwardly toward the cooking chamber 30 and extends the engaging portion 22 having fastening holes 23 formed at both sides thereof. Fastening the fastening screw 80 to the fastening hole 23 from the lower side of the tray motor 70 so that the tray motor 70 is installed on the bottom of the coupling portion 22, The tray motor fixing structure of the microwave oven, characterized in that the tray motor 70 is fixed to the bottom plate (20) of the cavity (10).