KR200142359Y1 - Turn table driving apparatus for microwave oven - Google Patents

Abstract

A turntable driving device for a microwave oven is disclosed. A characteristic of the disclosed turntable driving device is configured to rotate and lift up and down the turntable by a single drive motor, and includes a gear member connected to an output shaft of the drive motor and a cam mechanism connected to the gear member. And a turntable coupled to a rotating shaft installed to rotate and lift by the cam mechanism. According to these features, it is possible to simplify the configuration, and thus to improve the stability of the operation, the manufacturing cost, and the productivity.

Description

Microwave Turntable Drive

The present invention relates to a microwave oven, and more particularly, to a turntable driving device for driving the lift table up and down to rotate the food is mounted.

As is well known, a microwave oven (Micro Wave Oven) is a cooking apparatus that can cook the outside and inside of the food at the same time by a dielectric heating method using microwaves, that is, microwaves in the same frequency band as color TV. Such a microwave is provided with a cooking chamber formed in a space of a constant size, and inside the cooking chamber is provided with a turntable on which food is mounted and rotated. In general, the turntable is installed so that the rotational movement and the lifting movement can be performed at the same time, so that the food can be cooked more quickly and evenly.

By the way, the conventional turntable driving apparatus of the microwave oven is provided with a drive motor for rotating the turntable and a drive motor for lifting and lowering the turntable rotated by the drive motor, so that the increase in manufacturing cost and productivity decrease. There is this.

Therefore, the technical problem to be achieved by the present invention is to solve the problems of the conventional turntable driving apparatus of the microwave as described above, the object of the present invention is to reduce the production cost and improve the productivity by a single drive source The present invention provides a microwave turntable driving device capable of rotating and elevating a turntable.

1 is a schematic perspective view showing a microwave turntable driving apparatus according to the present invention,

2 is a schematic cross-sectional view of FIG. 1, and

3 is a schematic plan view of FIG. 1.

Explanation of symbols for main parts of the drawings

10. Turntable 100. Base frame

110. Drive motor 120. First gear member

130. second gear member 140. third gear member

150. Cam member 153 Cam groove

160. The fourth gear member 170. The rotating shaft

In order to achieve the above object, a microwave turntable driving apparatus according to the present invention is a microwave turntable driving apparatus for rotating and elevating a turntable by a power transmission means connected to an output shaft of a driving motor installed in a base frame. The power transmission means includes a first gear member coupled to the output shaft of the drive motor, a second gear member engaged with the first gear member, and a cylindrical type coupled coaxially with the rotation shaft of the second gear member. A third gear member having a gear portion formed on the outer circumferential surface of the body, and a cylindrical body formed to surround the third gear member is coupled to the second gear member in a vertical state, and the cam is formed by cutting the cylindrical body inclined to one side. The cam member is provided with a cam groove on the truncated surface of the curved portion, and the gear portion of the third gear member is mounted on the truncated surface of the cam curved portion of the cam member. And the fourth gear member being engaged with one end is coupled to the center of the fourth gear member is seated in the cam groove of the cam member, characterized by including a rotation shaft that is coupled to the other end turntable.

In the microwave turntable driving apparatus according to the present invention, at least two or more of the second gear member 130, the third gear member 140, and the cam member 150 are preferably integrally formed.

Hereinafter, with reference to the accompanying drawings will be described in detail the microwave turntable driving apparatus of the present invention according to a preferred embodiment.

1 is a schematic perspective view illustrating a microwave turntable driving apparatus according to the present invention, FIG. 2 is a schematic cross-sectional view of FIG. 1, and FIG. 3 is a schematic plan view of FIG. 1.

1 to 3, in the microwave turntable driving apparatus according to the present invention, a driving motor 110 is installed in the base frame 100 fixed to the bottom plate 20 of the microwave cooking chamber, and the driving motor thereof. The first gear member 120 is rotatably coupled to the output shaft of the 110. In addition, one side of the first gear member 120 is installed side by side with the second gear member 130 to be engaged with the gear portion 141 on the outer peripheral surface of the cylindrical body to the second gear member 130. Is formed, the third gear member 140 is coaxially coupled. In addition, a cam member 150 having a cylindrical body 151 formed to surround the third gear member 140 is coupled to the second gear member 130 in a vertical state. On the other hand, the body 151 of the cam member 150 is truncated to be inclined to one side, the cam curved portion 152 is formed, the cam groove 153 is formed on the truncated surface of the cam curved portion 152. . In addition, a fourth gear member 160 engaged with the gear part 141 of the third gear member 140 is mounted on the truncated surface of the cam curve portion 152 of the cam member 150. At the center of the fourth gear member 160, the turntable 10 is coupled to the upper end, and the lower end has a configuration in which the rotary shaft 170 is seated in the cam groove 153 of the cam member 150.

According to the microwave turntable driving apparatus according to the present invention having the configuration described above, when the driving motor 110 is driven by applying power, the first gear member 120 coupled to the output shaft is engaged with the first gear member 120. The second gear member 130 is rotated. The fourth gear member 140, in which the third gear member 140 and the cam member 150 coupled with the second gear member 130 are rotated and engaged with the third gear member 140 by rotation of the second gear member 130 ( At the same time as the 160 is rotated, it is repeatedly raised and lowered along the truncated surface of the cam curve portion 152 of the cam member 150. Therefore, as the rotary shaft 170 coupled to the center of the fourth gear member 160 is rotated and lifted at the same time, the turntable 10 coupled to the upper end thereof is lifted and driven simultaneously with the rotation.

On the other hand, the lower end of the rotating shaft 170 is formed in a conical shape, for example, is coupled to the cam groove 153 in a stable state to prevent the departure during lifting.

In the microwave turntable driving apparatus according to the present invention, at least two or more of the second gear member 130, the third gear member 140, and the cam member 150 may be integrally formed. For example, the second gear member 130 and the third gear member 140, the second gear member 130 and the cam member 150, the third gear member 140 and the cam member 150 may be integrally formed, or the second gear member 130, the third gear member 140, and the cam member 150 may be integrally formed to further increase the stability and assembly of the operation.

As described above, according to the microwave turntable driving apparatus according to the present invention, the turntable can be rotated and lifted and driven by a single driving motor, thereby achieving stability of operation, reduction of manufacturing cost, and productivity improvement by simplifying the configuration. can do.

Claims (5)

In the turntable driving apparatus of the microwave oven for rotating and elevating the turntable 10 by a power transmission means connected to the output shaft of the drive motor 110 installed in the base frame 100, The power transmission means, A first gear member 120 coupled to the output shaft of the drive motor 110; A second gear member 130 installed to engage with the first gear member 120; A third gear member 140 having a gear portion 141 formed on an outer circumferential surface of a cylindrical body coupled coaxially with the rotation shaft of the second gear member 130; A cylindrical body 151 formed to surround the third gear member 140 is installed perpendicular to the second gear member 130, the cam formed by cutting the cylindrical body 151 inclined to one side A cam member 150 provided with a cam groove 153 on a truncated surface of the curved portion 152, A fourth gear member 160 mounted on the truncated surface of the cam curve portion 152 of the cam member 150 and engaged with the gear portion 141 of the third gear member 140; One end is coupled to the center of the fourth gear member 160 to be seated in the cam groove 153 of the cam member 150, and the other end comprises a rotary shaft 170 is coupled to the turntable 10 Microwave turntable drive. The method of claim 1, The second gear member 130 and the third gear member 140 is a microwave turntable driving apparatus, characterized in that formed integrally. The method of claim 1, The second gear member 130 and the cam member 150 is integrally formed turntable driving apparatus of the microwave oven. The method of claim 1, The third gear member 140 and the cam member 150 is integrally formed a turntable driving apparatus of the microwave oven. The method of claim 1, The second gear member 130, the third gear member 140 and the cam member 150 is integrally formed, the turntable driving apparatus of the microwave oven.