JPH063218U - LCD waterproof structure of rice cooker - Google Patents

Abstract

(57) [Abstract] [Purpose] LC of rice cooker with simple shape and inexpensive to manufacture
D is to provide a waterproof structure. [Structure] A double-sided adhesive sheet 43 is provided on the outer edge of the LCD 35 provided on the rice cooker body 11 with a highly stretchable member excellent in waterproofness.
A waterproof member 41 is attached. The waterproof member 41 intervenes in a compressed state between the rice cooker body 11 side and the panel 36 without a gap even if the panel 36 has a curved shape, and the double-sided adhesive sheet 43 adheres to the rice cooker body 11 side, It prevents water from entering the surface of the LCD 35.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an LCD waterproof structure of a rice cooker.

[0002]

[Prior art]

 Conventionally, some rice cookers include an LCD (liquid crystal panel) 1 for displaying a timer reservation time and the like, as shown in FIG. The LCD 1 is attached to the substrate 2a provided on the shoulder of the rice cooker body 2 via the LCD spacer 3, and the front surface side thereof is covered with the panel 4. The panel 4 is made of a light-transmissive material, and a light-shielding member 5 is integrally formed on the outer surface other than the portion facing the LCD 1 to form a transparent viewing portion 5a. A packing 6 is provided between the panel 4 and the outer edge of the LCD 1.

[0003]

[Problems to be solved by the device]

 However, the packing 6 must be provided with a ridge 7 on its surface so as to surely prevent water from entering the surface of the LCD 1 and prevent fogging, and its shape is also spherical. It must be pressed evenly against the back surface of panel 4. The packing 6 is made of an expensive material such as silicon rubber. Therefore, the waterproof structure using the packing 6 has a problem that the material cost is high and the shape thereof is complicated, so that the manufacturing cost is high. The present invention has been made in view of the above problems, and an object of the present invention is to provide an LCD water-proof structure of a rice cooker that can be manufactured at a low cost with a simple shape.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention has an LCD provided on a rice cooker main body, a panel attached to the rice cooker main body and having a transparent visual observation part for visually recognizing the LCD, and is located on an outer peripheral portion of the LCD, In an LCD waterproof structure of a rice cooker, comprising a waterproof member for preventing water from entering the LCD by pressing the main body of the rice cooker against a panel, the waterproof member is made of a high waterproof material such as sponge. It is composed of a stretchable material, the highly stretchable material and a double-sided pressure-sensitive adhesive sheet attached to the rice cooker body side.

[0005]

[Action]

 In the present invention, the waterproof member intervenes in a compressed state between the rice cooker main body side and the panel even if the panel has a curved shape, and the sheet adheres to the rice cooker side to prevent water on the LCD surface. Prevent the invasion of.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to FIGS. The electronic rice cooker shown in FIG. 1 includes a rice cooker main body 11 and a lid 12 rotatably provided on the rice cooker main body 11 about a hinge shaft 11a. The rice cooker body 11 includes an outer case 13 forming a bottom plate and a side plate, a shoulder body 14 forcibly fitted to the upper end of the outer case 13, and a dish-shaped protection frame 15 housed in the outer case 13. And a cylindrical metal inner case 16 having an upper end fitted to the shoulder body 14 and a lower end fitted to the protection frame 15.

A rice cooking container 18 is accommodated in a container accommodating portion 17 formed by the shoulder body 14, the protective frame 15, and the inner case 16. Below the protective frame 15, a ferrite mount 19 attached to the outer case 13 is located. An induction heating coil 20 is arranged on the upper surface of the mounting table 19 between the mounting table 19 and the protective frame 15, and eight ferrites 21 are radially mounted on the lower surface of the mounting table 19 (see FIG. 4). . The ferrite 21 is for preventing magnetic lines of force generated when the coil 20 is energized from reaching the electronic parts.

A substantially rectangular long hole 16a is bored in the inner case 16, and a heater 22 for heat retention is arranged in a portion excluding the long hole 16a. A sensor holder 24, in which a pair of side sensors 23, 23 are respectively attached vertically, is fitted into the elongated hole 16a. These sensors 23, 23 are pressed against the outer surface of the rice cooking container 18 to detect the internal temperature via the rice cooking container 18. An aluminum reflector 25 is provided on the outer edge of the protective frame 15 to prevent noise from leaking.

In the lower space of the rice cooker body 11, an IH substrate 26 on which electronic components such as transistors (not shown) are mounted is housed. The IH board 26 has a large number of heat radiation fins 27, and a fan 28 is rotatably attached. The fan 28 is rotated by a motor 29, sucks air through a plurality of air holes 13a formed in the bottom plate, and cools the electronic component. Reference numeral 30 denotes a battery board provided with a battery for backing up electronic parts, which is arranged on the rear side of the lower space of the rice cooker body 11 (see FIG. 4).

A substrate holder 31 is housed in the front space of the rice cooker body 11. The substrate holder 31 includes a vertical surface portion 31a located on the lower side of the rice cooker body 11 and an inclined surface portion 31b located on the upper side, and the substrates 32a and 32b are fixed to each other. Three switches such as a rice cooking switch 33a are mounted on a substrate 32b fixed to the inclined surface portion 31b, and an LCD 35 is attached via an LCD spacer 34. The LCD 35 is visible from the panel 36 provided on the front upper portion of the rice cooker body 11.

Hereinafter, the LCD waterproof structure according to the present invention will be described in detail. That is, as shown in FIG. 3, a panel fitting recess 37 is formed in the front upper portion of the rice cooker body 11. The panel fitting recess 37 has a first recess 38 and a second recess 39 formed stepwise. A square hole 38a is formed in the first recess 39 to expose the LCD 35. Further, through holes 39a are formed at three locations in the second recess 39 at predetermined intervals. The switch 33a mounted on the substrate 32b and its spacer 33b and the LED 33c that emits light when the switch 33a is pressed are exposed in each through hole 39a. A plurality of them are provided.

A waterproof member 41 is provided in the first recess 38. As shown in FIG. 5, the waterproof member 41 includes a frame 42 made of a material having excellent elasticity such as a sponge and having waterproof properties, and a sheet 43 having an opening smaller than the frame 42, and a double-sided tape 4 attached thereto. 3a, and further, a release paper 43c is attached to the sheet 43 via a double-sided tape 43b (a double-sided adhesive sheet formed by the sheet 43 and double-sided tapes 43a and 43b attached to both sides thereof). Is formed).

The panel 36 is made of a material having a light-transmitting property and formed into a curved surface so as to match the outer surface of the outer case 13. A light-shielding member 44 is formed on the outer surface of the panel 36 other than the portion facing the LCD 35 to form a transparent visual observation portion 45. Further, through holes 46 are respectively formed at positions corresponding to the switch 33a, the LEDs 33c, etc. of the panel 36, and push buttons 47 project from the through holes 46. Further, a tubular portion 48 is formed on the back surface of the panel 36.

In order to form the LCD waterproof structure, the waterproof member 41 is mounted on the tubular portion 48 of the panel 36, the release paper 43c is peeled off, and then the panel 36 is fitted into the panel fitting recess 37. . As a result, the waterproof member 41 has the sheet 43 adhered to the bottom surface of the first recess 38 and the edge portion of the LCD 35 by the double-sided tape 43b, and is sandwiched between these and the back surface of the panel 36 to be compressed. It Since the frame body 42 of the waterproof member 41 has excellent elasticity, no gap is formed between the frame body 42 and the panel 36, and water does not enter the surface of the LCD 35 from the outside. Moreover, since the sheet 43 is adhered to the bottom surface of the first recess 38, vapor from the inside does not enter the surface of the LCD 35.

[0015]

[Effect of device]

 As is clear from the above description, according to the LCD waterproof structure of the rice cooker of the present invention, since the double-sided pressure-sensitive adhesive sheet is attached to a material such as a sponge having a high elasticity as the waterproof member, the waterproof member is Since it is not necessary to have a complicated shape as in the past, and the material itself is inexpensive, the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a rice cooker according to an embodiment.

FIG. 2 is a partially enlarged sectional view of FIG.

FIG. 3 is an exploded perspective view of FIG.

FIG. 4 is a bottom view of FIG. 1.

FIG. 5 is a partial cross-sectional view of the waterproof member according to the present embodiment.

FIG. 6 is a partial cross-sectional view of a rice cooker showing an LCD waterproof structure according to a conventional example.

[Explanation of symbols]

11 ... Rice cooker body, 34 ... LCD spacer, 35 ... LC
D, 36 ... Panel, 41 ... Waterproof member, 42 ... Frame body, 43
… Sheet.

Claims (1)

[Scope of utility model registration request] 1. An LCD provided on a rice cooker main body, a panel attached to the rice cooker main body, having a transparent visual observation part for visually recognizing the LCD, and located on an outer peripheral portion of the LCD,
By pressing the main body side of the rice cooker and the panel under pressure, LC
In a LCD waterproof structure of a rice cooker comprising a waterproof member for preventing water from entering D, the waterproof member is a highly stretchable material having waterproofness such as sponge, and the highly stretchable material and the rice cooker body. An LCD waterproof structure for a rice cooker, which is composed of a double-sided adhesive sheet attached to the side.