JPS6034966Y2 - Cooker control panel device - Google Patents

Description

[Detailed Description of the Invention] This invention relates particularly to a control panel device for a high-frequency heater cooker.

Conventionally, this type of control panel device is formed by injection molding a control panel main body 2 made of thermoplastic resin or the like into a frame shape, as shown in FIG.
A boss A4 and a boss B5 for attaching 2 are formed at a predetermined interval, and a plurality of reinforcing ribs 6 are provided,
A front panel 7, which is made of transparent glass with dimensions larger than the window 8 and has operating instructions written on it, is housed on the back side of the main body 2 formed in this way, and the periphery of the panel 7 is further housed on the back side of this panel. A pair of left and right support plates 9 that hold down the parts and a board 10 to which various electronic and electrical circuit parts are mounted are respectively placed on the boss A4 of the main body 2, and these are screwed together with screws 11 to integrate them, and then the main body 2 A frame 12 is arranged on the back side of the heater and fixed to the boss B5 with screws 18, and such a unit-shaped control panel device C is detachably attached to the front plate 13 of the high-frequency heater.

However, such conventional devices have the following drawbacks.

That is, first of all, when the control panel device C is required to have high heat resistance, for example, in a high frequency heater that has a heater inside the heating chamber (not shown) to provide an open function, the two main body parts of the control panel device C have a temperature of about 120 mm. Because it is heated to around 30°F, it is thermally impossible to use with ordinary thermoplastic resins, requiring the use of expensive and highly heat-resistant resins, and is also disadvantageous in terms of molding operations.

Furthermore, it is necessary to increase the dimension W of the frame portion of the window 8 of the main body 2 from the viewpoint of forming the boss A4 and the boss B5, or to maintain the overall strength of the main body 2 itself. This results in a reduction in the effective space for the operation section and display section of the board 10, and also leads to a disadvantage in that the effective usable area relative to the entire area of the substrate 10 is reduced.

In particular, when the operation is a so-called touch control method and the board 10 is a printed wiring board, the cost of materials is high and the cost is wasted, which is not desirable in terms of price.

Furthermore, in terms of the design of the high-frequency heating device main body, for example, if you want to give the outer peripheral edge of the main body 2 a metallic luster, plating treatment or hot stamping of aluminum or chrome foil, or so-called two-shape processing, is required. It is very expensive, and at present, when high heat-resistant resins such as those mentioned above are used, surface treatment techniques are difficult and cannot be carried out easily.

This invention was devised to eliminate the various drawbacks of the prior art.

An example of this invention will be explained below.
In Fig. 3, reference numeral 2 is the control panel main body, which is formed by press-forming a steel plate with an abbreviated cross section into a picture frame shape, and joining both ends by spot welding etc. to form a frame shape, with a predetermined window 8 in the center. It is set up.

The left and right inner circumferential surfaces of this main body 2 have two longitudinal cross-sectional shapes L on each side, facing each other with the other side.
A fixing plate 15 made of a steel plate having a letter shape is arranged, and the lower end of this fixing plate is inserted into the groove 16 provided at the lower end of the main body 2 and fixed, and the upper end of the fixing plate is also placed inside the upper end 19 of the main body 2. It is fixed by bending it.

The fixing plate 15 is formed with two claws E and F that protrude toward the center of the main body 2, and the dimensions of each of these claws are such that the support plate 9 and presser plate 17, which will be described later, can be removably engaged with the fixing plate 15. The dimensions are pre-designed.

7 is a front panel made of transparent glass, etc. In the case of a touch control method, the operations necessary for each cooking are printed on the front in the desired pattern, and the back is coated with electrode parts corresponding to the printed parts. has been done.

This front panel is inserted and installed inside the main body 2 while being slightly tilted from the rear.

Reference numeral 9 denotes a pair of metal support plates having a U-shaped cross section, which are installed on both the left and right ends of the front panel 7 after the front panel 7 is installed.
When installed along the side surface of the main body 2, the fixing plate 15 has a through hole 20 through which the pawl E passes through, and when the through hole and the pawl E are engaged and the support plate 9 is installed, the support plate 9
The claws 21 formed in the front panel 7 are inserted into the gaps S formed between the peripheral surface of the front panel 7 and the fixing plate 15 to prevent the front panel 7 from wobbling in the left and right direction, and at the same time prevent the front panel 7 from shaking in the left and right direction. It is designed to be held between the body 2 and the body 2.

Reference numeral K denotes two protrusions formed integrally at the upper end of the support plate 9 at a predetermined interval. Reference numeral 10 denotes a board with a through hole 22 provided at a position corresponding to the protrusion, on which printed wiring is applied. and various circuit parts are attached.

The dimensions are such that when this board is placed on the support plate 9, the protrusion K penetrates through the through hole 22 and projects several millimeters above the board 10.

Reference numeral 17 denotes a pair of metal holding plates having a U-shaped cross section similar to that of the supporting plate 9, and one each is arranged along both left and right ends of the substrate 10.

Reference numeral 23 denotes an elongated hole formed in the holding plate 17 to correspond to the claws F of the fixing plate 15, and 24 denotes a notch formed in the holding plate 17 to correspond to the elongated hole 23.

Therefore, when the holding plate 17 is installed with its elongated hole 23 and the claw F of the fixing plate 15 aligned, the lower end surface of the elongated hole 23 is pressed downward by the claw F, so that there is a gap between the holding plate 17 and the support plate 9. When the substrate 10 is held in a press-contact state and the holding plate 17 is further slid in a predetermined direction as shown by arrow A in FIG. As shown in FIG. 2, the protrusion K escapes from the notch 24 and comes into contact with the inner surface of the presser plate 17, so this force presses the entire presser plate 17 to the left in FIG.
It is held in pressure contact with the main body 2.

Reference numeral 25 indicates a screw hole provided in the holding plate 17, and reference numeral 12 indicates a front plate 13 on which the door 3 provided on the front side of the high-frequency heater main body 1 is closed.
A metal frame that can be detachably attached to the
The previously assembled control panel device C as described above is attached to this frame by screwing the screws 18 into the screw holes 25.

As described above, this idea consists of forming the frame-shaped control panel body that houses the front panel out of metal, and attaching a presser plate to the fixed plate attached to the control panel body, and the attachment to the cooker is done using the presser plate. Since a plate is used, the effective usable area of the board and front panel increases, and the entire device can be manufactured at low cost while maintaining high heat resistance.

Furthermore, since the main body of the control panel is made of metal, it has the advantage that various secondary processes for design can be easily performed.

It goes without saying that the control panel main body and the fixing plate may be fixed by a fixing method using screws or rivets instead of caulking as in the above embodiment.

[Brief explanation of drawings]

Figure 1 is a perspective view showing an example of applying this invention to a high-frequency heater, Figure 2 is a perspective view of the control panel device seen from the back side with a portion cut away, and Figure 3 is a vertical sectional view of the main parts. , FIG. 4 is a vertical sectional view of the same part as FIG. 3, showing a vertical example. In the figure, 1 is a high-frequency heater (cooker), 2 is the control panel body,
7 is a front panel, 10 is a substrate, 15 is a fixing plate, and 17 is a holding plate. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A metal frame-shaped control panel body that houses the front panel,
The main body includes a fixing plate fixed to the inner surface of the main body, and a pair of holding plates attached to the fixing plates, respectively, and the fixing plate, the holding plate, and the supporting plate are incorporated at predetermined positions in the control panel main body. A control panel device for a cooking appliance, wherein the control panel main body is attached to the cooking appliance via the holding plate in the above-mentioned state.