JPS63119190A - Operating panel unit of radio frequency heater - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an operation panel unit for a high-frequency heating device.

[Conventional technology]

In recent years, high-frequency heating apparatuses have become popular, which use microcomputers as control circuits (2) to make it possible to cook various types of foods according to complex heating patterns. In such a high-frequency heating device, a plurality of control circuit boards are required to deal with structural problems and complicated heating patterns. For this reason, the above-mentioned control circuit board is housed in an operation bar unit for operating the high-frequency heating device.

The configuration of a conventional operation panel unit will be explained with reference to the drawings. FIG. 3 is an exploded explanatory diagram showing the configuration of the operation panel 41v unit when two control circuit boards are used. Third
In the figure, a decorative plate 2 is fixed to the front of the operation panel 1, and a support for each button 3 and a transparent smoke plate 4 are fixed to the back of the operation panel 1.
is fixed with a back plate 5. This back plate 5 has a volume 6
is attached, and a knob 7 is inserted from the front of the operation panel 1. A control circuit board 8 with a cooking selection switch and an operation control circuit board 9 are attached to the back of the back plate 5. The switch-equipped control circuit board 8 and the operation control circuit board 9 are connected by a cable 10.

FIG. 2 shows a cross-sectional view of a conventional operation panel unit having the above-mentioned configuration. Such an operation panel unit can be attached to the main body 11 of the high-frequency heating device with screws 12, or can be attached to the opening of the main body 11 by a retaining piece (not shown) provided at an appropriate location on the side wall 13 of the operation panel 1. It is engaged and attached to the part. The cape (vlo) that connects the control circuit board with switch 8 and the operation control circuit board 9 has one end fixed to the control circuit board with switch 8 and the other end detachably attached to the operation control circuit board 9. The cable 10 itself has a sufficient length to facilitate assembly or inspection work and to ensure efficient assembly.

Furthermore, when attaching the operation panel unit to the high-frequency heating device main body 11, in order to prevent the excess length of the cable 10 from being caught between the main body 11 and the operation panel 1, the end of the operation control circuit board 9 should be The distance from the side wall 13 of the operation panel 1 is increased, and the extra length is bent toward the back surface (the top surface in the figure) of the operation control circuit board 9 as shown.

[Problem that the invention seeks to solve]

In the configuration of the conventional operation panel unit as described above,
Since the cable 10 is bent toward the electronic component side of the operation control circuit board 9 during assembly work, the cable 10 may press against the electronic component side, which may cause damage to the electronic component side of the operation control circuit board 9. There was the problem of giving, and it became a factor task that required careful attention. In addition, if the cable 10 is not bent sufficiently or if the operation pile unit is attached to the main body 11 without bending it, the cape 1v10 may be caught between the cables, and in the worst case, the cable may break. Ta. As one means of preventing damage to the electronic component surface of the control circuit board 9 due to the above-mentioned bending, it is also considered to cut out the electronic component surface of the operation control circuit board in advance to accommodate the bending of the above-mentioned cable to an allowance length. However, in this case, designing the pattern of the substrate corresponding to this notch becomes extremely difficult. For this reason, it is clear that it is preferable not to make the above-mentioned notch.

Therefore, an object of the present invention is to solve the above-mentioned problems associated with bending the cable 10, which eliminates the need for the above-mentioned bending and also eliminates the possibility of pinching between the operation panel 1 and the high-frequency heating device main body 11. The purpose is to facilitate assembly work or inspection work.

[Means for solving problems]

The present invention includes a plurality of control circuit boards provided with a control circuit for controlling the operation of a high-frequency heating device in an operation pile;
In the operation panel unit of the high-frequency heating device that accommodates the cables that interconnect the control circuit boards described in 2., at least one engagement piece that engages with the high-frequency heating device main body is provided on the side wall of the operation panel, and the One of the pieces is a base unit for operating the high frequency heating device installed on the side wall of the operation panel at a position opposite to the cable absorption position.

[Effect]

In the operation panel unit of the high-frequency heating device according to the present invention, one of the engagement pieces provided on the operation panel that engages with the main body of the high-frequency heating device is always provided at a position opposite to the position where the cable is installed. Even if the cable falls down toward the side wall of the operation panel, it is blocked by this retaining piece and is not caught between the main body of the high-frequency heating device and the operation panel. Therefore, the operation panel can be engaged and attached to the main body of the high-frequency heating apparatus without having to bend the cable toward the operation control circuit board in advance. In addition, as mentioned above, since there is no need to bend the cable toward the operation control circuit board, there is no need to damage the electronic components on the board, and there is no need to provide a cutout in the board to take this into consideration. Facilitates circuit pattern design.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. Figure 1 is a cross-sectional view of an operating bar unit according to the present invention. As shown in FIG. 1, a decorative plate 2 is attached to the front side of the operation panel 1, and a button 3 is attached to the inner side of the back side.

The back plate 5 is fixed to the operation panel 1 with an engaging piece 14, and also fixes the fulcrum of the button 3. A control circuit board 8 with a cooking selection switch and an operation control board 9 are attached to the back of the back plate 5. And between the control circuit board 8 with switch and the operation control circuit board 9, there is a cape /l/10.
One end of the cable 10 is fixed to the switch-equipped control circuit board 8, and the other end is detachably attached to the operation control circuit board 9.

Further, the goople 10 is made to have a sufficient length as shown in the figure in order to facilitate wiring attachment to the operation control circuit board 9.

According to the present invention, in order to attach the operating spring /L/1 to the high-frequency heating device main body 11, a plurality of engaging pieces 15 are arranged on the side wall 13 of the operating pile 1, and these are attached to the main body 11. It is attached by engaging with the provided engagement opening 16. At this time, one of the engaging pieces 15 is always provided on the side wall 13 of the operation panel 1 at a position opposite to the position where the cable 10 is installed, so that the cable 10 and this engaging piece 15 are adjacent to each other. be.

At this time, it is preferable that the height of the engaging piece 15 is equal to or slightly longer than the allowance length of the cable 10.

〔Effect of the invention〕

As mentioned above, since one of the engaging pieces 15 provided on the operating pad 1 is provided at a position opposite to the installation position of the cable 10, this engaging piece 15 is used exclusively for the operating pad 1 of the VLO.
Since the cable 10 serves as a wall to prevent the side from falling over, the cable 10 will not be caught between the operation panel 1 and the main body 11 even if the cable 10 is not bent toward the operation control circuit board 9 side in advance. Therefore, the conventional bending work can be omitted, and furthermore, by eliminating this bending work, the operation control circuit board 9
Damage to the upper electronic components can be completely prevented. Further, there is no need to provide a notch in the operating circuit board 9 to avoid damage due to bending, and pattern design can be facilitated.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an operation panel unit according to the present invention, FIG. 2 is a sectional view of a conventional operation panel unit, and FIG. 3 is an exploded explanatory view showing the configuration of the operation panel unit. 1-m-operation panel, 8-m-control circuit board with switch, 9-m-operation control circuit board, 10--cable, 1
1-m--high frequency heating device main body, 13--operation panel side wall, 15-m=engaging piece, 16--engaging port.

Claims (1)

[Claims] 1. In an operation panel unit for a high-frequency heating device, the operation panel houses a plurality of control circuit boards equipped with a control circuit for controlling the operation of the high-frequency heating device, and cables that interconnect the control circuit boards. , at least one engagement piece that engages with the high-frequency heating device main body is provided on the side wall of the operation panel, and one of the engagement pieces is installed on the side wall of the operation panel at a position opposite to the installation position of the cable. Operation panel unit for high-frequency heating equipment.