JPH0759221B2 - Rice cooker control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an improvement of a rice cooker control device.

[Prior Art] Rice cookers, which heat and cook rice using electric power, have become widespread nationwide and have become an indispensable appliance in the kitchen of each household. For that reason, the enthusiasm of each manufacturer for developing the technology is wonderful, and it literally takes on the stance of day by day.

FIG. 2 is a front view of a conventional rice cooker, FIG. 3 is a perspective view showing a control device thereof, 1 is an outer case, 2 is a control device, 3 is a control panel, and 4 is a substrate on which electronic components 5 are mounted. , 4a are screw holes, 6 is a back sheet, 7 is a set screw, and 11 is a board warp prevention pin provided on the control panel 3.

As shown in the figure, the control device 2 of the rice cooker includes a control panel 3 molded from a plastic material mounted in an opening provided on one side of the outer case 1, and a lower side of the opening from the back side of the control panel 3. A substrate 4 having a size that extends across and extending the electronic component 5 and is disposed inside the outer case 1
And the back sheet 6 for insulating the substrate 4 on the back surface of the control panel 3.
The rice cooker is provided with a set screw 7 fixed via a pin, and a board warp prevention pin 11 integrally formed at a position facing the opening lower side crossing part of the board 4 in the control panel 3. It is configured to be attached to the case 1. Therefore, the rice cooker can perform operations such as preheating, rice cooking, steaming, and heat retention by operating each button of the control panel 3.

[Problems to be Solved by the Invention] FIG. 4 is a cross-sectional view of a mounting portion of the control panel device 2 to the outer case 1 of the rice cooker. In the figure, control panel 3
Although the electronic component 5 on the substrate 4 is electrically protected by covering the substrate 4 of the above, there is a slight gap 8 at the joint between the control panel 3 and the outer case 1 of the rice cooker. Of static electricity 9 on the substrate 4 intersects with the lower side of the opening, that is, the gap 8
There is a case where the rice cooker invades a portion opposite to and affects the electronic component 5 on the substrate 4, and causes a malfunction of the rice cooker. For this reason, its countermeasures have long been a problem.

The present invention has been made to solve the above-mentioned problems of the conventional rice cooker, and external static electricity entering from the gap generated at the joint between the control panel and the outer case may affect the gap facing portion of the board. It is intended to provide a control device for a rice cooker that does not receive it.

[Means for Solving the Problems] A rice cooker control device according to the present invention has the following configuration. That is, the control panel is mounted in the opening of the outer case, and the electronic component has a size that extends inside the outer case so as to extend from one side of the opening from the back surface side of the control panel. In a rice cooker in which a board is arranged, the board is fixed to the back surface of the control panel, and a board warp prevention pin is provided at a position facing the opening side intersection of the board in the control panel, Between,
An insulating protective sheet is arranged to cover the opening side intersections of the substrate, and the protective sheet is fixed to the substrate warp prevention pins.

[Operation] In the present invention, since the protective sheet for insulation covering the opening side intersecting portion of the substrate is arranged between the control panel and the substrate, it intrudes from the gap between the joint portion between the control panel and the outer case. The generated static electricity is shielded by the protective sheet and does not reach the electronic components attached to the gap facing portion or the like on the substrate. Therefore, the electronic components are not affected by the static electricity.

Further, since the protective sheet is fixed to the warp preventing pins of the substrate, the present invention can be directly applied to the conventional apparatus without any member or processing for attaching the protective sheet.

[Embodiment of the Invention] FIG. 1 is a sectional view of a control device according to an embodiment of the present invention, (b) is a rear plan view, 10 is a protective sheet, and 11 is a pin for preventing warpage of a substrate. Is.

As shown in the figure, a plastic protective sheet 10 is arranged between the control panel 3 and the substrate 4. When disposing the protective sheet, the board warp prevention pin 11 formed on the control panel 3 is used. Therefore, static electricity 9 that has entered through the gap 8 between the control panel 3 and the outer case 1
Is not shielded by the protective sheet 10 and does not reach the electronic component 5, and the electronic component 5 is not affected by the static electricity 9.

[Effects of the Invention] As described above, according to the present invention, the control panel is mounted in the opening of the outer case, and one side of the opening is crossed inside the outer case from the back surface side of the control panel. A board having an extending size and having electronic components mounted thereon is arranged, the board is fixed to the back surface of the control panel, and the board is warped at a position facing the opening side intersection of the control panel. In a rice cooker with pins, an insulating protective sheet was placed between the control panel and the substrate to cover the above-mentioned opening side intersections of the substrate, and the protective sheet was fixed to the substrate warp prevention pins. Static electricity that has entered through the gap between the joint between the panel and the outer case can be shielded by the protective sheet, and the influence of static electricity on the electronic components attached to the gap facing portion on the substrate can be prevented. Therefore, troubles such as malfunction of electronic components due to static electricity can be prevented.

Further, since the protective sheet is fixed to the warp preventing pins of the substrate, the present invention can be applied to the conventional apparatus as it is without any member or processing for attaching the protective sheet.

[Brief description of drawings]

FIG. 1 is a sectional view of a rice cooker control device according to an embodiment of the present invention, FIG. 1 (b) is a plan view from the back, FIG. 2 is a front view of a conventional rice cooker, and FIG. Is a perspective view of the controller, and FIG. 4 is a sectional view of the controller. In the figure, 1 is an outer case, 2 is a control device, 3 is a control panel, 4
Is a substrate, 5 is an electronic component, 6 is a back sheet, 7 is a set screw,
Reference numeral 8 is a gap, 9 is static electricity, 10 is a protective sheet, and 11 is a board warp prevention pin. The same reference numerals in the drawings indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Shimatani 1728, Omaeda, Hanazono-cho, Osato-gun, Saitama Prefecture 1 Mitsubishi Electric Home Appliances Co., Ltd. Mitsubishi Electric Home Equipment Co., Ltd. (56) Reference JP-A-63-77412 (JP, A) JP-A-60-18120 (JP, A)

Claims (1)

[Claims] 1. A control panel is attached to an opening of an outer case,
Inside the outer case, a board having a size extending from the back side of the control panel so as to extend across one side of the opening and having electronic components mounted thereon is arranged, and the board is placed on the back side of the control panel. In the rice cooker which is fixed to the control panel and is provided with a board warp prevention pin at a position facing the opening side intersection of the board in the control panel, the opening of the board is provided between the control panel and the board. A control device for a rice cooker, wherein an insulating protective sheet covering an edge crossing portion is arranged, and the protective sheet is fixed to the substrate warp prevention pin.