JP3468112B2 - rice cooker - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a rice cooker used in a general household.

[0002]

2. Description of the Related Art Conventionally, this type of rice cooker is shown in FIG.
The configuration was as shown in. In the figure, 1 is a cylindrical body having an open top surface, and inside the body 1,
A protective frame 2 which is an inner pot storage portion is arranged, and the protective frame 2 is formed of a non-metallic material into a cylindrical shape with a bottom.
The upper end of is engaged with the inner periphery of the upper end of the body 1.

Reference numeral 3 denotes an inner pot having an outwardly projecting flange 4 formed on the upper end thereof. The inner pot 3 has the flange 4 as an upper frame 2
By being placed on the upper surface of 3 in a suspended state, it is detachably provided in the protective frame 2. An induction coil 5 is arranged outside the protective frame 2, and the induction coil 5 is made of a heat-resistant resin material on the lower outer periphery of the protective frame 2 so that the distance to the outer peripheral surface of the inner pot 3 is constant. It is supported by the molded coil cover 6.

Reference numeral 7 denotes an outer lid made of synthetic resin, and the outer lid 7 is rotatably supported by a hinge member 8 integrally formed on the upper portion of the upper frame 23 via a pin 9. 10 is an inner cover,
The inner cover 10 is fixed to the inner surface of the outer lid 7. A heat radiating plate 11, which is a heating element, is fixed to the inner cover 10, and an induction coil 12 supported by a coil support 13 is located above the heat radiating plate 11. The electromagnetic effect of the induction coil 12 causes the heat sink 11 to generate heat. A sensor 14 for detecting the temperature of the heat dissipation plate 11 is directly attached to the heat dissipation plate 11 with an aluminum tape to adjust the temperature of the heat dissipation plate 11.

Reference numeral 16 denotes an engaging member which is located on the opposite side of the hinge member 8 and is integrally formed on the upper end portion of the protective frame 2. The engaging lever 17 is attached to the outer lid 7 so as to face the engaging member 16. Is rotatably instructed via a pin 18. The pot packing 20 is configured to press the flange 4 of the inner pot 3 to close the inner pot 3 when the outer lid is closed.

Further, numeral 24 is a steam cylinder, which prevents the bean from spilling outside. Reference numeral 25 denotes a control unit, which controls the input / output of the energization state of the induction coil 12 and the signal of the operation display unit 26. A cooling fan 27 cools the control unit 25 and the induction coil 5. A soft sheet 28 covers the upper surface of the control unit 25, and the input and output of the rice cooker are printed.

[0007]

However, in the above-mentioned rice cooker, there is a problem that the display portion of the control portion is exposed and fog occurs, and the display portion of the control portion becomes hard to see.

The present invention is to solve the above problems, and it is an object of the present invention to prevent dew and fog on the display portion of the control unit and to obtain good visual observation of the display portion of the control unit.

[0009]

In order to solve the above-mentioned problems, the present invention has a main body and a lid for covering the upper part of the main body ,
The lid covers the control unit and the control unit for controlling the outer lid and the rice cooker.
Equipped with a board cover that seals the space between the outer lid and the board cover.
And has an air flow between the sealed space and the outside air.
The ventilation passage is provided outside the lid.

[0010]

[0011]

[0012]

[0013]

[0014]

The invention according to claim 1 has a main body and a cover for covering the upper part of the main body, and the cover has a control unit for controlling the outer cover and the rice cooker and a substrate cover for covering the control unit. Equipped with
By providing a sealing space between the outer lid and the substrate cover, and providing a ventilation path led to the outside of the lid body through which air can flow in and out between the sealing space and the outside air, the sealing during rice cooking can be achieved. It is possible to prevent swelling of the stop space, prevent dew and fogging of the control board display section, and obtain good visual observation of the control board display section.

[0015]

According to a second aspect of the present invention, the ventilation passage is formed of a resin tube, so that the control board display section can be prevented from being dewed and fog to obtain a good visual observation of the control board display section. And improve the workability of the rice cooker.

[0017]

Embodiments of the present invention will be described with reference to FIGS. As shown in the figure, the feature of the present invention is to arrange a control unit for controlling the rice cooker in the lid unit, provide a display member having a display unit capable of visually observing the display of the control unit, and control unit of the display member. A seal member made of an elastic material is placed between the control member and a display member having a display unit or coated with a surfactant on the side or having a fine uneven surface, and the control substrate display unit is exposed. It is a point to prevent the occurrence of fogging.
The devised points will be described in order.

The rice cooker includes a main body 31, an inner pan 32 detachably housed in the main body 31, an induction coil 33 for heating the inner pan 32, a heating substrate 34 for generating a high frequency current in the coil, and the main body 31. It consists of a lid 35 that covers the upper part. Lid 3
Reference numeral 5 has a control unit 36 for controlling the rice cooker, and the control unit 36 has an operation unit 37 for operating the rice cooker and a display unit 38 for displaying the operating state of the rice cooker. By thus providing the operation part 37 for operating the rice cooker and the display part 38 for displaying the operating state of the rice cooker on the lid 35, the operability of the rice cooker is improved and the operating state of the rice cooker can be visually confirmed. It is possible to provide a rice cooker that is easy to use and easy to use.

However, when the steam from the inner pot 32 flows into the inside of the lid 35 by disposing the control unit 36 in the lid 35, the steam hits the control unit 36, so that the dew condensation of the control unit 36 occurs. Malfunction of rice cooker due to, display part 38
There is a problem of deterioration of visibility due to cloudiness and dew. Therefore, the control unit 36 is covered with a component that is a substrate cover 39, and the lid 3
The display portion 3 of the control unit 36 is provided on the surface of the outer lid 40 that constitutes the control unit 5.
A display member 4 having a display portion 41a which is visually observed after passing through 8.
1, the space 42 sealed from the steam flow is formed between the outer lid 40 and the substrate cover 39, and the controller 36 is arranged in the sealed space 42, so that the controller 36 is exposed to the steam. This makes it possible to eliminate the problems of malfunction of the rice cooker with dew of the control unit 36 due to the inflow of steam, and deterioration of visibility due to fog on the display unit 41a and dew.

In this example, for convenience, the display member 41 having the display portion 41a that passes through the display portion 38 of the control portion 36 and is viewed will be referred to as a membrane hereinafter.

During rice cooking, the sealed space 42 formed by the outer lid 40 and the substrate cover 39 is at a temperature higher than the outside air temperature due to the heat of rice cooking. Therefore, a temperature difference occurs between the sealed space 42 and the outside air. Generally, when there is a temperature difference between the sealed space 42 and the outside air, the inner wall of the sealed space 42 is fogged or dewed. As a matter of course, fog and dew are generated inside the sealed space 42, especially on the side of the control unit 36 of the membrane 43. Further, in this phenomenon, as the amount of moisture contained in the sealed space 42 increases, the amount of clouding or dew increases. However, since the amount of water that appears as cloudy weather or dew is less than the amount of moisture contained in the atmosphere, the amount of water is too small to cause a malfunction of the rice cooker, and the malfunction of the rice cooker does not occur. The amount of water that causes fogging or dew changes depending on the amount of water in the atmosphere in the process of forming the sealed space 42, that is, the humidity.

Therefore, the control unit 36 side of the display unit 41a of the display member 41 having the display unit 41a for visually observing the display unit 38 of the control unit 36 in the sealed space 42, that is, the display unit 43b of the membrane 43. By applying the surfactant 44 to the control unit 36 side of the display unit 43 of the membrane 43,
The haze or dew generated in b forms a film of a more uniform water content on the surface of the surfactant 44, which makes the refraction of light passing through the display section 43b uniform and makes the display section 38 of the control section 36 easy to see.

Further, by providing fine irregularities 45 on the control portion 36 side of the display portion 43b of the membrane 43, the cloudiness or dew generated on the display portion 43b of the membrane 43 becomes a uniform moisture film and passes through the display portion 43b. By making the refraction of the reflected light uniform, the display portion 38 of the control unit 36 can be easily viewed.

The amount of fog and dew generated in the sealed space 42 is affected by the amount of moisture in the sealed space 42. Therefore, by disposing a desiccant 46 that absorbs moisture in the sealed space 42, the desiccant 46 absorbs the moisture in the sealed space 42, the moisture in the sealed space 42 decreases, and the membrane 43 No cloudiness or dew on the side of the control section 36 of the display section 43b of FIG.

By providing another sealed space 42a in the sealed space 42, the control section 3 of the display section 43b of the membrane 43 is also provided.
Cloudiness and dew on side 6 are reduced. A seal member 48 made of an elastic material is arranged between the control part 36 side of the display part 43b of the membrane 43 and the display part 38 of the control part 36, and another sealing space 42a is provided in the sealing space 42. . The amount of moisture contained in the other sealed space 42a becomes extremely small, and since the convection of air from the sealed space 42 is eliminated by the sealing member in the other sealed space 42a, the amount of moisture being cooked from the sealed space 42 is reduced. The temperature becomes low and the sealed space 42a separate from the outside air
Since the temperature difference between the
There is no fog or dew on the side of the controller 36 of b.
The display portion 38 of 6 is easier to see.

In the sealed space 42 formed of the outer lid 40 and the substrate cover 39, the temperature inside the space rises during rice cooking. Therefore, the air in the sealed space 42 expands to cause the membrane 43 to swell, which reduces the visibility of the display portion 38 of the control unit 36. Therefore, a ventilation path 49 connecting the sealed space 42 and the outside air
By providing the above, the expanded air is discharged into the outside air through the ventilation path 49, the expansion of the membrane 43 is eliminated, and the visibility of the display portion 38 of the control unit 36 is improved. In addition, since the sealed space 42 and the outside air are connected by the ventilation path 49, the sealed space 4
2 due to the decrease in temperature difference between 2 and the outside air
The cloudiness and dew generated on the control unit 36 side of the display unit 43b of No. 3 are reduced, and the visibility of the display unit 38 of the control unit 36 is improved. When the ventilation path 49 is provided between the sealed space 42 and the outside air outside the lid 35, the temperature in the sealed space 42 during rice cooking becomes closer to the outside air, and the temperature difference from the outside air further decreases. The cloudiness and dew generated on the control unit 36 side of the display unit 43b of the membrane 43 are further reduced, and the visibility of the display unit 38 of the control unit 36 is further improved. Further, when the resin tube 50 is used as a means for forming the ventilation passage 49, the ventilation passage 49 can be formed at any place, and the workability is improved. The size of the tube 50 is about 1 mm in inner diameter, and it sufficiently serves as the ventilation path 49.

[0027]

[0028]

[0029]

[0030]

[0031]

As described above, the invention according to claim 1 is
There is a main body and a lid that covers the upper portion of the main body, the lid includes a control unit that controls the outer lid and the rice cooker, and a substrate cover that covers the control unit, and a sealing space is provided between the outer lid and the substrate cover. Having a configuration in which a ventilation path led to the outside of the lid through which air can flow in and out is provided between the sealed space and the outside air, thereby eliminating swelling of the sealed space during rice cooking, and It is possible to prevent dew formation and fogging, and to obtain good visual observation of the control board display section.

[0032]

According to the second aspect of the present invention, the ventilation passage is made of a resin tube to prevent dew and fogging of the control board display section and to provide good visual observation of the control board display section. It can be obtained and improves the workability of the rice cooker.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a rice cooker according to an embodiment of the present invention.

FIG. 2 is a sectional view of the main part of the lid of the rice cooker.

FIG. 3 is a schematic view of the parts arrangement of the lid of the rice cooker.

FIG. 4 is a sectional view of a main part of a conventional rice cooker.

[Explanation of symbols]

31 body 35 Lid 36 Control unit 38 Display 39 board cover 40 outer lid 41 Display member 42 sealed space 44 Surfactant 45 Fine unevenness 46 desiccant 48 Seal member 49 air passage 50 tubes

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiro Koyama 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A 64-58215 (JP, A) JP-A 10- 137133 (JP, A) JP 61-141327 (JP, A) JP 63-40515 (JP, A) Actual development 58-155505 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47J 27/00 103 A47J 27/00 109

Claims (2)

(57) [Claims] 1. A main body and a lid for covering the upper portion of the main body, the lid having a controller for controlling the outer lid and the rice cooker, and a substrate cover for covering the controller, and between the outer lid and the substrate cover. A rice cooker having a sealed space therein, and provided with a ventilation path led to the outside of a lid through which air can flow in and out between the sealed space and the outside air. 2. A cooker in the ventilation path according to claim 1, wherein comprising a resin tube.