JPH0443230A - Microwave oven - Google Patents

Abstract

PURPOSE:To prevent entrance of liquid into a motor even if liquid having a low surface tension such as detergent drips by a method wherein a flange extending below an end surface of a washer is provided. CONSTITUTION:A washer 6 in close contact with a shaft is provided at an intermediate part of a shaft 2a of a motor with a resilient member such as rubber or the like. An end surface of the washer 6 is provided with a flange 6a extending downwardly. In the event that detergent is used for cleaning a heating chamber, even if the dripped detergent 9 is transmitted along the shaft 2a of the motor, the detergent does not enter an opening 3a of a motor fixing plate by a flange 6a extending below the end surface of the washer 6, resulting in that an insulating performance of the motor 2 can be assured.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a high frequency heating device.

Conventional technology Traditionally, high-frequency heating equipment has been equipped with a rotary table to rotate the food to prevent uneven heating of the food and to cook the food uniformly. It is rotated and driven.

This will be explained below with reference to FIGS. 5 and 6.

As shown in FIG. 5, below the bottom 1a of the heating chamber 1, a motor 2 for rotating a rotary table 4 in the heating chamber 1 is attached by a motor mounting plate 3; A cooking table 6 on which items T are placed is provided, and a rotating tape/I/4 and a cooking tape/I15 are detachable for easy cleaning. The shaft 2a of the motor 2 is connected to an opening 1 provided at the bottom of the heating chamber 1.
A washer T is provided in the middle part of the motor 2 in close contact with the shaft, and the food 7
Even if the boiling liquid 8 spills on the bottom of the heating chamber 1 and drips from the opening 1b, the washer 6 prevents it from entering the opening 3a of the motor mounting plate and does not attach to the motor 2. This is to ensure that the disconnection performance of 2 does not deteriorate.

Problems to be Solved by the Invention However, even in the configuration shown in FIGS.
etc., the surface tension acts, and the washer 6 prevents it from entering the opening 3a of the shimoter mounting plate, but the heating chamber bottom 1a
When the detergent 9 is used to clean the motor 2, the surfactant contained in the detergent 9 lowers the surface tension and if a large amount drops, it will enter the opening 3a of the motor mounting plate and deteriorate the insulation performance of the motor 2. will decrease.

Therefore, an object of the present invention is to ensure insulation performance without infiltrating the motor even when the inside of the heating chamber is cleaned with detergent.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a flange extending downward from the end face of the washer.

Function: The high-frequency heating device of the present invention is provided with a flange that extends downward from the end face of the washer, so that even if a liquid with low surface tension such as a detergent drips, it can drain well from one end face of the washer and prevent it from penetrating into the shimoter. insulation performance can be ensured.

EXAMPLE Hereinafter, a high-frequency heating device according to an example of the present invention will be explained with reference to the drawings.

As shown in FIG. 2, below the bottom 1a of the heating chamber 1, a motor 2 for rotating the rotating tape A/4 in the heating chamber 1 is mounted on a motor mounting plate 3. A
A cooking table ε for placing food 8 to be cooked is provided on top of the rotary table 4 and the cooking table 6 are detachable.

At the intermediate portion of the motor shirt 2a, there is a washer 6 which is made of an elastic material such as rubber and is configured to be in close contact with the shaft.The end face of the washer 6 is provided with a flange 6& that extends downward.

As shown in FIG. 1, when a detergent is used to clean the heating chamber, the flange 6a extends downward from the end surface of the washer 6 even if the detergent 9 that drips down the motor's shirt 2a.
The insulation performance of the motor 2 can be ensured without entering the opening 3a of the motor mounting plate.

Further, the washer 6 may be configured as shown in FIGS. 3 and 4. That is, a flange 6a extending downward is provided near the center of the end surface of the washer 6.

Even in this configuration, as shown in Fig. 3, when detergent is used to clean the heating chamber, even if the dripping detergent 9 travels down the motor's shirt 2a, it will end up near the center of the end face of the washer 6, which is in close contact with the shaft. The flange 6a extending downward prevents the motor 2 from entering the opening 3a of the motor mounting plate.
insulation performance can be ensured.

Effects of the Invention As is clear from the above explanation, the present invention has a flange extending downward on one end face of the washer, so that even if a liquid with low surface tension such as detergent drips, the motor attached below will not be affected. No infiltration occurs, the insulation performance does not deteriorate, and no safety problems occur.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a main part of a high-frequency heating device according to an embodiment of the present invention, FIG. 2 is a side cross-sectional view of the same, FIG. 3 is a cross-sectional view of a main part of a high-frequency heating device according to another embodiment, is a side sectional view of the same, FIG. 6 is a side sectional view of a conventional high frequency heating device,
FIG. 6 is a sectional view of the main part. 1... Heating chamber, 2... Motor, 4...
... Rotating table, 5... Cooking table,
6...Washer 6a...Flange. Name of agent: Patent attorney Shigetaka Awano and 1 other person2-
-9 6-Washer M-Flange Diagram 2-Motor 6-Washer 〇-Flange Diagram a/α Diagram Diagram! Figure Figure

Claims (2)

[Claims] (1) comprising a heating chamber, a high-frequency generating means coupled to the heating chamber, a rotating stand provided below the heating chamber, a motor for driving the rotating stand, and a washer closely attached to the shaft of the motor; The washer is a high-frequency heating device in which the washer has a flat portion in a substantially horizontal direction and a flange extending downward. (2) The high-frequency heating device according to claim (1), wherein the washer has a flange formed inside and below the outer periphery.