KR20030066937A - Microwave oven - Google Patents

Abstract

PURPOSE: A microwave oven is provided to achieve improved productivity and reduce manufacturing costs by allowing for ease of repair and replacement of the magnetron mounted in the electrical component chamber. CONSTITUTION: A microwave oven comprises a cooking tray(25) mounted to be rotatable in a cavity; a drive motor arranged in the lower portion of the cavity so as to rotate the cooking tray; and a coupler(30) interposed between a rotating shaft(26a) of the drive motor and the cooking tray in such a manner that the coupler allows for transmission of the rotating force of the drive motor to the cooking tray. The coupler includes an upper coupler(31) coupled with the cooking tray; and a lower coupler(32) having an upper portion coupled with the upper coupler in such a manner that the coupler has an adjustable height, and a lower portion coupled with the rotating shaft of the drive motor.

Description

Microwave oven {MICROWAVE OVEN}

The present invention relates to a microwave oven, and more particularly, to a microwave oven that allows the components to be shared through the height of the coupler connecting the rotating shaft of the cooking plate and the drive motor.

In general, the microwave oven is a device for cooking food using a high frequency supplied from the magnetron into the cooking chamber. As shown in FIG. 1, a cooking dish 1 that is rotatable is installed in the cooking chamber of the microwave oven, and a driving motor for rotating the cooking dish 1 is provided in the lower portion of the cooking chamber 2. 3) is installed.

Between the bottom surface 2a of the cooking chamber 2 and the lower surface of the cooking plate 1, a rotating member 4 having a plurality of rollers 4a coupled thereto is installed to rotatably support the cooking plate 1. , Between the rotary shaft 3a of the drive motor 3 and the cooking plate 1, the rotational force of the driving motor 3 is transmitted to the cooking plate 1 so that the cooking plate 1 can rotate. Is installed. This configuration is such that the rotational force of the drive motor 3 installed in the lower part of the cooking chamber 2 is transmitted to the cooking plate 1 through the coupler 5 so that the cooking plate 1 rotates, thereby allowing cooking mounted on the cooking plate 1 to be rotated. The water is cooked evenly.

On the other hand, such a microwave oven is produced in various standards according to the size of the cooking chamber (2), in the case of products of different standards of the cooking chamber (2) is usually the size of the cooking plate (1) or the driving motor (installed inside) Since the installation position of 3) is different, the specification of the coupler 5 which mediates the connection between the drive motor 3 and the cooking dish 1 is also different. Therefore, the microwave maker is preparing a coupler (5) of various sizes in accordance with the specifications of the various products when producing the microwave in advance and takes the way to assemble by selecting the appropriate according to the product.

By the way, the production method of producing a coupler (5) of various specifications and selecting and assembling to fit each product has a problem that it is difficult to manage parts in the production line of the microwave oven, because there are many types of couplers (5), There was a problem that the manufacturing cost increases.

The present invention is to solve such a problem, an object of the present invention is to provide a microwave oven that can reduce the manufacturing cost and increase the productivity by allowing the height adjustment of the coupler to be common to this product of various specifications It is.

1 is a cross-sectional view illustrating a connection structure of a cooking dish and a driving motor of a conventional microwave oven.

2 is a cross-sectional view showing the overall configuration of a microwave oven according to the present invention.

3 is an exploded perspective view illustrating a mounting structure of the microwave coupler according to the present invention.

4 is a cross-sectional view showing the configuration of a microwave coupler according to the present invention.

Explanation of symbols on the main parts of the drawings

20: main body, 21: cooking chamber,

22: battlefield, 23: magnetron,

24: high voltage transformer, 25: cooking dish,

26: drive motor, 30: coupler,

31: upper coupler, 32: lower coupler,

33: height adjusting member.

The microwave oven according to the present invention for achieving the above object, a cooking plate rotatably installed in the cooking chamber, a drive motor installed in the lower portion of the cooking chamber for the rotation of the cooking plate, the rotating shaft of the drive motor and the In a microwave oven including a coupler is installed between the cooking plate to mediate rotational force transmission, the coupler is coupled to the upper coupler coupled to the cooking plate, the upper portion is adjustable to the upper coupler and the lower portion is coupled to the rotating shaft It characterized in that it comprises a lower coupler to be coupled.

In addition, the coupling portion of the upper coupler and the lower coupler is characterized in that at least one height adjustment member is interposed.

In addition, the height adjustment member is characterized in that it is provided in a ring shape having a predetermined thickness.

In addition, the lower portion of the upper coupler is provided with a bolt for fastening with the lower coupler, the upper portion of the lower coupler is characterized in that the female screw portion is fastened to the bolt portion.

In addition, the upper portion of the upper coupler is characterized in that the sawtooth coupling portion for coupling with the cooking dish is provided.

In addition, a lower portion of the lower coupler is characterized in that the coupling groove of the polygon is formed for coupling with the rotation axis.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

As shown in FIG. 2, the microwave oven according to the present invention includes a cooking chamber 21 and an electric equipment chamber 22 formed to be partitioned inside the main body 20. In the electric compartment 22, a magnetron 23 for supplying a high frequency into the cooking chamber 21, a high voltage transformer 24 and a high voltage capacitor (not shown) for applying a high voltage to the magnetron 23 are embedded.

In the cooking chamber 21, a rotatable cooking plate 25 is installed so that food can be mounted, and a normal driving motor 26 is provided at the bottom of the cooking chamber 21 as a driving means for rotating the cooking plate 25. Is installed. At this time, as shown in Figures 2 and 3 between the bottom of the cooking chamber 21 and the lower surface of the cooking plate 25, a ring shape in which a plurality of rollers (27a) is coupled so that the cooking plate 25 can be rotated smoothly Rotating member 27 is installed. The driving motor 26 is coupled to the support bracket 28 fixed to the lower surface of the cooking chamber 21 so that the driving motor 26 can be fixed at a predetermined interval from the lower surface of the cooking chamber 21, and the rotation shaft 26a of the driving motor 26 is provided. Is installed so as to extend a predetermined length toward the cooking chamber 21 through the support bracket 28.

Between the rotating shaft 26a of the drive motor 26 and the cooking dish 25, a coupler 30 is provided to mediate the connection so that the rotational force of the driving motor 26 can be transmitted to the cooking dish 25. This is to allow the cooking plate 25 to be rotated by the drive of the drive motor 26 so that the food mounted on the cooking plate 25 can be cooked while rotating together. At this time, the upper portion of the coupler 30 is detachably engaged with the central portion of the lower surface of the cooking plate 25, and the lower portion penetrates the bottom 21a of the cooking chamber 21 and is coupled to the rotating shaft 26a.

In addition, the coupler 30 of the microwave oven according to the present invention, as shown in Figure 4, the upper coupler (31) and the lower coupler 32, and the upper coupler (30) to be able to adjust the height of the coupler (30) 31) and the height adjustment member 33 interposed in the fastening portion of the lower coupler (32).

More specifically, the upper portion of the upper coupler 31 has a serrated engagement portion 31a protruding radially at equal intervals so as to be detachably coupled to the catching jaw 25a provided below the cooking dish 25. ) Is provided, and a lower portion of the upper coupler 31 is provided with a bolt portion 31b provided to protrude downward for fastening with the lower coupler 32.

The lower coupler 32 is provided in a cylindrical shape having a predetermined length, and an upper portion of the lower coupler 32 has a female screw portion 32a to which the bolt portion 31b of the upper coupler 31 is fastened, and a lower portion of the rotation shaft of the drive motor 26. Polygonal coupling grooves 32b to which 26a are coupled are formed. At this time, the rotating shaft 26a of the drive motor 26 is also formed in a polygon to be coupled corresponding to the coupling groove 32b.

The height adjusting member 33 has a through-hole 33a formed at the center thereof so as to be interposed between the upper coupler 31 and the lower coupler 32 while being fitted to the bolt portion 31b, and has a ring shape having a predetermined thickness. Is prepared.

The configuration of the coupler 30 is to be applied to the microwave oven of various standards by allowing the height adjustment member 33 to adjust the height between the upper coupler 31 and the lower coupler 32. . That is, in order to increase the height of the coupler 30 in order to apply to a large-scale microwave oven, the upper and lower lengths are lengthened by interposing a plurality of height adjusting members 33 between the upper coupler 31 and the lower coupler 32. On the contrary, when the height of the coupler 30 is to be reduced, the vertical length is shortened by not interposing the height adjusting member 33 or interposing a few height adjusting members 33. This allows the same coupler 30 to be applied to microwave ovens of various standards, thereby reducing the cost of manufacturing and facilitating parts management in the production line.

As described above in detail, the microwave oven according to the present invention is composed of an upper coupler and a lower coupler to which the coupler installed between the rotating shaft of the drive motor and the cooking plate is fastened to each other, and a height adjusting member is disposed between the upper coupler and the lower coupler. Since the height of the coupler may be interposed, it may be used in microwave ovens of various standards, thereby increasing productivity and reducing manufacturing costs.

Claims (6)

A cooking plate rotatably installed inside a cooking chamber, a driving motor installed under the cooking chamber for rotating the cooking plate, and a coupler installed between the rotating shaft of the driving motor and the cooking plate to mediate rotational force transmission. In the microwave oven, The coupler includes an upper coupler coupled to the cooking dish, and an upper coupler coupled to the upper coupler so that height is adjustable, and a lower coupler coupled to the rotating shaft. The method of claim 1, Microwave oven, characterized in that at least one height adjustment member is interposed between the upper coupler and the lower coupler. The method of claim 2, The height adjusting member is a microwave oven, characterized in that provided in a ring shape having a predetermined thickness. The method of claim 1, The lower portion of the upper coupler is provided with a bolt portion for fastening with the lower coupler, the upper portion of the lower coupler is characterized in that the female screw portion is fastened to the bolt portion is formed. The method of claim 1, The upper portion of the upper coupler is characterized in that the saw-tooth coupling portion for coupling with the cooking dish is provided. The method of claim 1, Microwave oven characterized in that the coupling groove of the polygon is formed in the lower portion of the lower coupler for coupling with the rotation axis.