JPS5818094Y2 - High frequency heating device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a high-frequency heating device that includes a cooking heater in a heating chamber.

The present invention will be explained below with reference to the illustrated embodiment. 1 is a main body of the device equipped with a high-frequency oscillator (not shown), etc.; 2 is a door 3 provided in the main body; the front opening thereof can be opened and closed;
The heating chamber is closed by a heating chamber, and an annular recess 4 is formed approximately in the center of the inner bottom of the heating chamber.

Reference numeral 5 denotes a lower cooking heater installed at the bottom of the heating chamber facing the recess 4, which has a U-shape and has a portion facing the recess 4 bent toward the recess 4. There is.

Reference numeral 6 denotes a W-shaped upper cooking heater mounted above the heating chamber 2, and 7 denotes a rotary table protruding from the center of the recess 4 of the heating chamber 2, which is made of heat-resistant porcelain, that is, ceramic. It rotates in response to rotational force from a drive motor (not shown) attached to the outer surface of the bottom plate of the main body 1.

Reference numeral 8 denotes a metal pin fixed to a pair of opposing side walls of the heating chamber 2 by welding or the like, and 9 a support made of heat-resistant porcelain or the like with a hook hole 10 into which the pin is inserted. , forming a plurality of stages of placing portions 11.
It is removably hooked to the pin 8 using the hook hole 10.

Reference numeral 12 denotes a dish-shaped food placement plate installed on the placement portion 11 of this support, and is mainly used during electric cooking.

13 is a metal reinforcing material fixed to the outer wall surface of the heating chamber 2 so as to correspond to the installation part of the support 9, and the height B of this reinforcing material is slightly larger than the height A of the support 9, and The width is set to be sufficiently larger than the support 9.

14 is a ceramic turntable, which is connected to the rotating table 7.
A concave portion (not shown) that engages with a convex portion 15 formed on the upper surface of the
are provided at the center of the back surface, and the turntable 14 is removably connected to the rotary table 7 by their engagement.

Reference numeral 16 denotes support rollers made of Teflon resin that support the peripheral edge of the back surface of the turntable 14 at a plurality of locations, and are provided at the bottom of the heating chamber 2 and outside the recess 4 .

17 is a heat insulating material, and 18 is a convex portion formed by pressing a portion of the wall surface of the heating chamber 2 that corresponds to the support 9, and extends over the entire width corresponding to the support 9.

In the above configuration, when food is cooked by high frequency heating, it is the same as the conventional method and no problem occurs, so the explanation will be omitted.

On the other hand, when electricity is supplied to the cooking heaters 5 and 6 to perform cooking using electric heat, the temperature inside the heating chamber 2 becomes extremely high, unlike in the case of high-frequency heating or the conventional burnt date heating using a heater. As a result, thermal strain occurs on the wall surface of the heating chamber 2, which is usually formed of a thin plate such as stainless steel, and together with the strain during assembly, the corresponding surface of the support 9 deforms into an uneven surface, causing the support 9 to become uneven. However, with the above configuration, the reinforcing material 13 is attached to the wall surface of the heating chamber 2 to which the support 9 is attached. Since the convex portion 18 is provided, there is no fear that this portion will be deformed, and a secure latching condition can always be expected.

In addition to the deformation caused by heating as described above, the wall surface of the heating chamber 2 is also distorted with respect to the vertical line X as shown in FIGS. 3 and 4 due to the weight of the food etc. Although the wall tends to deform into an inclined surface, the formation of the convex portion 18 pre-applies strong tension to the wall surface itself, so such deformation can be suppressed.

Furthermore, according to the embodiment in which the convex portion 18 is provided below the pin 8, even if it is deformed, the support 9 is prevented from tilting as shown by the solid line in FIG. Since the supporting member 9 is supported in position, it will not come off the pin 8.In addition, a recessed portion may be provided in place of the convex portion to improve the wall strength of the heating chamber 2.

As described above, according to this invention, by forming the convex portion or four portions on the corresponding wall surface of the support excluding the fixed portion of the pin, it is possible to prevent the heating chamber wall surface from deforming due to heat, and also to place the food placement plate. This has the practical effect of simultaneously preventing deformation that occurs around the pin due to the weight of the food.

[Brief explanation of the drawing]

The figures show one embodiment of this invention. Figure 1 is a partially cutaway side view showing the state with the mounting plate removed, and Figure 2 shows the main components with the turntable and mounting plate installed. 3 is an enlarged view of the main part thereof, and FIG. 4 is a sectional view of the same part showing a conventional example. In the figure, 2 is a heating chamber, 5 and 6 are heaters, 9 is a support, 1
2 is a food placement plate, 13 is a reinforcing material, and 18 is a convex portion. In the drawings, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A support made of a heat-resistant insulator is removably hooked to multiple pins fixed to the peripheral wall of a heating chamber that contains a heater and is irradiated with high-frequency waves, and a metal food placement plate is attached to this support. The high-frequency heating device is configured such that a convex portion or four portions are integrally formed on a wall surface corresponding to the support excluding the fixing portion of the pin.