JPS5843697Y2 - Oven oven heating chamber wall deformation prevention device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for preventing the heating chamber wall of a microwave oven from being thermally deformed when an object to be heated is heated by an electric heater.

Conventionally, as a microwave oven, as shown in FIG. It is known that support parts 5 protruding from the heating chamber 1 are formed to face each other, and a placing member 7 on which an object to be heated such as food is placed 6 is supported on these support parts 5 so that it can be taken in and out of the heating chamber 1. ing.

However, such a microwave oven has two electric heaters.
3 is activated to perform oven cooking, the side wall 4 of the heating chamber 1 is thermally deformed so that the width between the supporting parts 5 increases as shown in FIG. There is a problem in that the mounting member 7 may fall or the side wall 4 may be thermally deformed so that the width near the support portion 5 becomes narrow as shown in FIG. 3, making it impossible to remove the mounting member 7.

The present invention solves the above-mentioned conventional problems by preventing thermal deformation of the side wall of the heating chamber and preventing the mounting member from falling or becoming unable to be pulled out when cooking using an electric heater. The purpose is to

In order to achieve this objective, the heating wall deformation prevention device of the present invention includes an electric heater installed in the heating chamber, and a supporting member provided on the side wall of the heating chamber that supports the placing member for the heated object so that it can be taken in and out. In the microwave oven, a reinforcing member is fixed to the outside of both side walls of the heating chamber at a spaced interval, and a support portion of the side wall is supported and fixed to the reinforcing member via a fixture.

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 4 and 5, reference numeral 11 denotes an outer box of the main body of the microwave oven. A heating chamber 12 is provided inside the outer box 11, and electric heaters 13 and 14 are installed in the upper and lower parts of the heating chamber 12, respectively. , heating cooking using these heaters 13 and 14 and high frequency heating cooking using a high frequency heating device 15 are performed.

An opening/closing door 16 is provided on the open front surface of the heating chamber 12, and two protrusions 18 are provided at the intermediate portions of both side walls 17 of the heating chamber 12 in the height direction by drawing and protruding inward.
Support portions 18 having a diameter a are formed to face each other.

A mounting member 20 for a heated object 19 is supported between the protrusions 18a of the support portion 18 so as to be removable.

The mounting member 20 is configured in the shape of a shelf or a plate.

The heating chamber wall deformation prevention device is constructed as follows.

That is, plate-shaped reinforcing members 21 and 22 are installed on the outside of both side walls 17 of the heating chamber 12 with a space therebetween, and the lower ends of these reinforcing members 21 and 22 are connected to the main body outer box 11
The upper end of one reinforcing member 21 is also fixed to the outer surface of the earthen wall of the heating chamber 12.

As shown in FIG. 6, a screw 23 is fixed to a portion between the protrusions 183 on the outer surface of the support portion 18 of the heating chamber 12.
passes through the reinforcing members 21 and 22, and a nut 24 is screwed into the portion protruding from the reinforcing members 21 and 22, and the screw 23 and nut 24
The individual fixture 25 is constructed by the following.

By tightening the nut 24, the side wall 17 of the heating chamber 12 is supported and fixed to the reinforcing members 21, 22 via the fixture 25 so that the width of the heating chamber can be adjusted.

In FIGS. 4 and 5, 26 is a cooking selection button, 27 is a timer, 28 is a power switch, 29 is a cooking lamp, and 30 is a cooking switch.

In the present invention, the fixing device 25 is constructed by inserting a screw 23 into the side wall 17 from the inner surface of the support portion 18 of the heating chamber 12, and tightening another nut 31 onto the screw 23, as shown in FIG.
may be fixed to the side wall 17, and the screw 23 may be inserted through the reinforcing member 22 and the nut 24 may be tightened.

Further, as shown in FIG. 8, the reinforcing device 25 is constructed by fixing the inner end of the U-shaped support plate 32 to the outer surface of the support part 18 of the side wall 17 by spot welding or the like, and fixing the outer end of the support plate 32 to the outer surface of the support part 18 of the side wall 17. It may also be fitted onto a receiving member 33 fixed to the reinforcing member 21.

Although only one side wall is shown in FIGS. 7 and 8, the other side wall has a symmetrical structure.

Since the present invention is constructed as described above, when the object to be heated 19 such as food is placed on the mounting member 20 and cooked in the oven using the electric heaters 13 and 14, the heating chamber 1
Even if the support portion 18 of the side wall 17 of No. 2 tries to be thermally deformed so as to widen or narrow the width dimension between them, the support portion 18 is supported and fixed to the reinforcing member 21, 22 via the fixture 25. This prevents thermal deformation of the side walls 17, especially these supporting portions 18.

Therefore, according to the present invention, the width dimension between the supporting parts 18 is made constant, the placing member 20 for the object to be heated 19 does not fall or become stuck, and the placing member 20 can be taken in and out easily and smoothly. Therefore, it is possible to obtain the effect that heating defects of the object to be heated 19 due to the falling of the mounting member 20 will not occur.

In addition, in the present invention, if the fixture 25 is composed of the screw 23 and the nut 24 or this and another nut 31, the width dimension between the side walls 17 of the heating chamber 11 can be adjusted, so that manufacturing errors can be absorbed. This provides the advantage of more reliably preventing the placing member 20 from falling or being unable to be pulled out.

[Brief explanation of drawings]

Figure 1 is a partially cutaway front view showing an example of a conventional microwave oven, Figures 2 and 3 are action explanatory diagrams showing different thermal deformation states of a conventional microwave oven, and Figure 4. 5 is a partially cut-away front view of a microwave oven equipped with a heating chamber wall deformation prevention device according to an embodiment of the present invention, FIG. 5 is a partially cut-away perspective view of the same, and FIG. 6 is an embodiment of the present invention. FIGS. 7 and 8 are enlarged front views of one side showing different embodiments of the present invention, respectively. In the figure, 12 is a heating chamber, 13.14 is an electric heater, 17 is a side wall, 18 is a support part, 19 is an object to be heated, 20 is a mounting member, 21.22 is a reinforcing member, 23 is a screw, 24.31 is a nut, and 25 is a fixture.

Claims (2)

[Scope of utility model registration request] (1) In a microwave oven in which an electric heater is installed in a heating chamber, and a support part provided on the side wall of the heating chamber supports a mounting member for the object to be heated so as to be removable, there is a gap between the outer sides of both walls of the heating chamber. A device for preventing deformation of a heating chamber wall, characterized in that a reinforcing member is fixedly provided, and the supporting portion of the side wall is supported and fixed to the reinforcing member via a fixture. (2) The fixing device consists of a screw provided on the side wall of the heating chamber and a nut provided on the reinforcing member, and by tightening the screw and nut, the width of the heating chamber can be adjusted by screwing the both side walls and tightening the nut. A heating chamber wall deformation prevention device as set forth in claim 1, which is supported and fixed to a reinforcing member through a heating chamber wall.