KR19980030328U - Microwave Tray Guide Structure - Google Patents

Abstract

The present invention discloses a tray guide structure of a microwave oven.

The present invention is a bracket having a side plate facing each other at least three places arranged on the lower plate of the cooking chamber corresponding to the rotational trajectory of the tray relative to the center of rotation of the tray; A guide roller hinged between the side plates of the bracket to have a rotational direction corresponding to the rotational trajectory of the tray and in contact with a lower surface of the tray, the bracket being provided on the lower plate of the cooking chamber and rotatable on the bracket. By guiding the rotation of the tray through the hinged guide rollers to prevent the peeling of the paint of the lower plate, and in particular, it is possible to prevent the guide rollers from detaching from the bracket to prevent food from spilling into the cooking chamber. can do.

Description

Microwave Tray Guide Structure

The present invention relates to a microwave oven, and more particularly, to a guide structure for guiding rotation of a tray through a tray motor.

In general, a microwave oven cooks food with frictional heat generated by molecular motion by irradiating food with microwaves that are oscillated from a magnetron.

As shown in FIGS. 1 and 2, the cabinet is divided into a ca. Cv and a driving room of a substantially rectangular shape for cooking food. It is configured.

In addition, a tray Tr in which a vessel Ve is placed on the bottom of the cooking chamber Cv, and a tray motor Tm for rotating the tray Tr. Are mounted respectively.

In addition, a magnetron Ma and a high voltage transformer Ht are respectively installed in the drive chamber Dr of the cabinet Ca, and a high frequency oscillated from the magnetron Ma is transferred to the cooking chamber Cv. A wave guide (Wg) for dispersing is provided, and a cooling fan assembly (Cf) for cooling them or blowing air into the cooking chamber Cv is installed.

Therefore, the high frequency is oscillated from the magnetron Ma of the drive chamber Dr, and the food Fo is cooked while being dispersed into the cooking chamber Cv through the wave guide Wg.

As shown in FIG. 3, the tray mounting structure of the conventional microwave oven has a circular guide groove 11 formed on an upper surface of a lower plate 10 constituting the cooking chamber Cv of the cabinet Ca. Is formed.

Then, the rollers 16 of the roller guide 15 are positioned and guided in the guide groove 11 of the lower plate 10, and the tray Tr is placed on the upper surface of the roller guide 15. The roller guide 15 is rotated by the drive of the tray motor Tm.

Therefore, while the tray Tr placed on the upper surface of the roller guide 15 is rotated by the drive of the tray motor Tm, high frequency is irradiated to the food Fo to perform cooking, wherein the roller of the roller guide 15 16 keeps the rotation smoothly in the guide groove (11).

However, in such a tray mounting structure, since the roller guide 15 is rotated at a constant trajectory on the bottom surface of the cooking chamber Cv, the bottom surface of the lower plate 10 of the cooking chamber Cv is continuously pressed. Due to this problem, the paint coating on the surface is peeled off, and the roller 16 is detached from the roller guide 15 when used for a long time, and thus, inside the cooking chamber Cv of the food Fo during the cooking process. This causes the problem of leaking.

The present invention is devised to solve such a conventional problem, it is possible to prevent the problem that the paint coating on the surface is peeled off by the load that the lower plate of the cooking chamber continues to be pressed, in particular, the detachment of the roller It is an object of the present invention to provide a tray guide structure of a microwave oven which can be prevented in advance.

In order to achieve the above object, the tray guide structure of the microwave oven according to the present invention includes a cabinet in which a cooking chamber and a driving chamber for cooking food are partitioned, and a tray mounted to rotate by driving of a tray motor in the cooking chamber. And a magnetron installed in the driving chamber and oscillating a high frequency wave, the microwave oven comprising: at least three conformal points on the lower plate of the cooking chamber corresponding to the rotational trajectory of the tray, based on the rotational center of the tray; A bracket arranged on the road and having side plates facing each other; And a guide roller hinged between the side plates of the bracket to have a rotational direction corresponding to the rotational trajectory of the tray and in contact with a lower surface of the tray.

1 is a perspective view showing a typical microwave oven

2 is a cross-sectional view of FIG.

3 is a cross-sectional view showing the installation structure of the tray in a conventional microwave oven

Figure 4 is a cross-sectional view showing a tray guide structure of the microwave oven according to the present invention.

5 is an enlarged cross-sectional view of the main portion excerpt of FIG.

Explanation of symbols for main parts of the drawings

10; Lower plate 20; Herb

20; Groove 30: Bracket

31,32: side plate 40: guide roller

Cv: Cooking Room Tr: Tray

Tm: Tray Motor

Such a characteristic configuration and the resulting effects of the present invention will become more apparent from the detailed description of the invention with reference to the accompanying drawings to be described later.

Figure 4 is a cross-sectional view showing a tray guide structure of the microwave oven according to the present invention, Figure 5 is an enlarged sectional view of the main portion. Hereinafter, a description will be given with reference to FIGS. 1 and 2.

First, referring to FIGS. 1 and 2, the cabinet Ca is divided into a cooking chamber Cv and a driving chamber Dr, and includes a container in which food Fo is placed at the bottom of the cooking chamber Cv. A tray Tr on which Ve is raised and a tray motor Tm for rotating the tray Tr are mounted. Then, the magnetron Ma and the high voltage transformer Ht for oscillating high frequency are provided in the drive chamber Dr of the cabinet Ca, respectively.

In this case, when the tray Tr is rotated through the tray motor Tm, the hub 20 is extended from the tray motor Tm, and the hub 20 is coupled to the bottom surface of the tray Tr. The groove 21 is formed.

In addition, on the lower plate 10 of the cooking chamber Cv corresponding to the rotational trajectory of the tray Tr, at least three locations on the basis of the rotation center of the tray Tr, that is, the portion coupled to the hub 20, are centered. The above-described isometric brackets (four shown) brackets 30 are fixedly installed through, for example, fixing screws S. FIG. On the other hand, the bracket 30 has side plates 31 and 32 facing each other.

As the lower surface of the tray Tr comes into contact with the space between the side plates 31 and 32 of each bracket 30 described above, a guide roller 40 for guiding the tray Tr rotatably rotates. Possibly hinged.

At this time, the installation direction of the guide roller 40 is installed to have a rotational direction corresponding to the rotational trajectory of the tray Tr.

In the tray guide structure of the microwave oven according to the present invention having such a configuration, when the tray motor Tm is driven to rotate the tray Tr coupled to the hub 20, the tray Tr is a cooking chamber ( The guide plate 40 is rotated by a guide roller 40 positioned on the lower plate 10 of Cv and rotatably hinged by the side plates 31 and 32 of the bracket 30.

At this time, the guide roller 40 is hinged on the side plates 31 and 32 of the bracket 30, so that there is no fear that the guide roller 40 may be separated from the bracket 30 even when used for a long time. Since the surface of the lower plate 10 of Cv is not in contact with the upper surface and is spaced apart, the paint painted on the surface of the lower plate 10 may not be peeled off by the load that is continuously pressed.

In addition, since the roller guide for installing the guide roller 40 becomes unnecessary, the overall height can be reduced, and the product can be made compact.

On the other hand, the above-described embodiment is only a description of a preferred embodiment of the present invention, the scope of the present invention is not limited to such, and can be changed appropriately within the scope of the same idea.

According to the tray guide structure of the microwave oven according to the present invention, the lower plate of the lower plate by guiding the rotation of the tray through a bracket provided on the lower plate of the cooking chamber and a guide roller rotatably hinged on the bracket. Peeling of the coating can be prevented, and in particular, the guide roller can be prevented from detaching from the bracket in advance, and food can be prevented from leaking into the cooking chamber.

Claims (1)

In a microwave oven including a cabinet configured to divide the cooking chamber and the driving chamber for cooking food, a tray mounted to be rotated by the drive of the tray motor in the cooking chamber, and a magnetron installed in the driving chamber to oscillate high frequency. In On the lower plate 10 of the cooking chamber Cv corresponding to the rotational trajectory of the tray Tr, at least three positions are arranged at an equal angle with respect to the rotational center of the tray Tr, and face each other. A bracket 30 having plates 31 and 32; A guide roller 40 hinged between the side plates 31 and 32 of the bracket 30 to have a rotational direction corresponding to the rotational trajectory of the tray Tr, and the lower surface of the tray Tr to contact the guide roller 40. The tray guide structure of the microwave oven characterized by the above-mentioned.