JP2007105153A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker which permits an improvement in heat insulativeness and ease of maintenance of a steam passage portion by significantly reducing the adhesion of dew into the steam passage portion during heat insulation. <P>SOLUTION: The rice cooker has a rice cooker body 1 removably storing a pot 2, a lid body 3 covering the top face opening portion of the rice cooker body 1 including the pot 2 and a heat dissipation plate 4 provided below the lid body 3 and covering the top face opening portion of the pot 2. The heat dissipation plate 4 is provided with a lid heater 8 for heating, a steam port 5 and a cylindrical steam passage portion 6. The steam passage portion 6 is formed integrally with the heat dissipation plate 4 and arranged in a steam passage portion 7 provided in the lid body 3. Consequently, heat of the heat dissipation plate 4 can be easily transmitted to the steam route portion 6 of the heat dissipation plate 4, can improve the heat insulativeness by significantly reducing the adhesion of dew into the steam passage portion 6 during heat insulation, and the formation of the steam route portion 6 of the heat dissipation plate 4 integrally with the heat dissipation plate 4 does not leaves a gap, and can improve an ease in maintenance of the steam passage portion 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a rice cooker mainly used in general households.

Conventionally, in this type of rice cooker, the lid is provided with a lid that covers the upper surface opening of the rice cooker body that houses the pan, and a heating plate provided below the lid, and the steam that is provided with a steam cylinder in the lid It is known that the path is provided with a steam hole in the heating plate to cope with the steam and rice balls in the pot generated during rice cooking (see, for example, Patent Document 1).
JP 2003-70629 A

  However, in the conventional configuration, since the steam path of the lid and the heating plate are sealed by steam packing, the heat of the heating plate is difficult to be transmitted to the steam path, and the steam path may be dewed during heat insulation, The taste could be affected. In addition, rice balls generated during rice cooking sometimes have difficulty sticking to a small gap between the steam path and the fitting portion of the steam packing.

  The present invention solves the above-mentioned conventional problems, and significantly reduces the dew condensation in the steam passage during the heat insulation, thereby improving the heat retention and improving the care of the steam passage. It aims at providing the rice cooker which can do.

  In order to solve the conventional problem, the rice cooker of the present invention has a rice cooker body that opens the upper surface and detachably stores the pan, and a lid that covers the upper surface opening of the rice cooker body including the pan, A heat dissipating plate provided below the lid and covering the top opening of the pan; the heat dissipating plate includes a lid heater for heating, a steam hole for guiding the steam in the pan to the outside, and a cylindrical steam passage portion The cylindrical steam passage portion is formed integrally with the heat radiating plate and is disposed in the steam passage portion provided in the lid.

  As a result, the heat of the heat sink heated by the lid heater is easily transferred to the steam path of the heat sink, greatly reducing the amount of dew that gets into the steam path during heat insulation and improving heat retention. In addition, since the steam path portion of the heat radiating plate is formed integrally with the heat radiating plate, there is no gap and the care of the steam passage portion can be improved.

  The rice cooker of the present invention can greatly reduce the dew that gets into the steam passage during heat insulation, thereby improving the heat retention and improving the care of the steam passage.

  1st invention opens the upper surface, the rice cooker main body which accommodates | detaches a detachable pan, the cover body which contains the said pan and covers the upper surface opening part of a rice cooker main body, the upper surface of the said pot provided below the said cover body A radiator plate covering the opening, the radiator plate is provided with a lid heater for heating, a steam hole for guiding the steam in the pan to the outside, and a cylindrical steam passage portion, and this cylindrical steam passage portion is By using a rice cooker that is formed integrally with the heat sink and placed in the steam passage provided in the lid, the heat of the heat sink heated by the lid heater is transmitted to the steam path of the heat sink. It is easy to be heated, and it is possible to greatly reduce the dew condensation in the steam passage during heat insulation and improve heat insulation, and the steam path of the heat sink is formed integrally with the heat sink. There are no gaps, and the care of the steam passage can be improved.

  In particular, the second aspect of the present invention is that during the cooking of the first aspect, the steam passage portion formed by the heat dissipation plate and the steam passage portion of the lid is equipped with a steam cylinder that is detachable from the outside of the lid. Can be prevented from escaping to the outside, and even if a stick adheres to the steam passage, the steam cylinder can be removed and the steam passage can be easily wiped off with a cloth, Careability can be improved.

  According to a third aspect of the invention, in particular, in the first or second aspect of the invention, the heat sink is provided on the lid through the steam packing by the flange portion that is bent outward at the upper end of the steam passage portion of the heat sink. By adhering to the steam passage portion, the heat radiating plate can be securely attached to the lid, and the intended purpose can be achieved.

  In the fourth aspect of the invention, in particular, in the third aspect of the invention, since the guide surface of the steam tube is formed at the bent corner portion of the flange portion, the steam tube can be easily attached and detached and can be handled easily.

  In particular, in the fifth invention, in any one of the first to fourth inventions, the surface of the steam passage portion of the heat sink has been subjected to rust prevention and antibacterial treatment, thereby improving the careability. Hygienic.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a rice cooker according to Embodiment 1 of the present invention.

  As shown to a figure, the rice cooker main body 1 has opened the upper surface, and accommodates the pan 2 with a flange in the inside so that attachment or detachment is possible. And the cover body 3 which covers the upper surface opening part of the rice cooker main body 1 including the pan 2 is provided so that opening is possible. The lid 3 is pivotally supported by a hinge portion 11 and a hinge shaft 12 provided at the rear of the rice cooker body 1. An aluminum radiator plate 4 that covers the upper surface opening of the pot 2 is provided inside the lid 3. The radiator plate 4 is provided with a lid heater 8 for heating, a steam hole 5 for guiding the steam in the pan 2 to the outside, and a cylindrical steam passage portion 6. The cylindrical steam passage portion 6 is connected to the radiator plate 4. It is formed integrally and disposed inside the steam passage portion 7 provided in the lid 3. Further, a pot packing 10 that seals between the heat sink 4 and the pot 2 is provided. A steam packing 13 made of silicon rubber is sandwiched between the inner surface of the heat radiating plate 4 and the end of the steam passage portion 7 of the lid 3.

  The steam passage portion 7 provided in the lid 3 has a stepped shape, and a steam cylinder 9 having a shape matching this is detachably mounted. The steam tube 9 is used to prevent the rice bowl 2 from passing through the steam passage portion 6 and blown out to the outside of the rice cooker body 1 and has a small diameter steam hole 9a on the upper and lower surfaces. It has a shape.

  Further, a heating substrate unit 15 for supplying electric power to the rice cooking IH coil 14 and the lid heater 8 as heating means for the pan 2 is disposed inside the rice cooker body 1.

  The rice cooker having the above-described structure is cooked in the same manner as the rice cookers known so far, but the heat of the lid heater 8 is conducted to the steam passage 6 by the heat radiating plate 4, and the rice is cooked during rice cooking. It can be heated sufficiently from above, and during heat insulation, it is possible to prevent dew on the steam passage portion 6 of the heat sink 4 and to reduce dew dripping on the surface of the rice and to reduce the whiteness of the rice. . Further, since the heat radiating plate 4 and the steam passage portion 6 are one member, there is no gap, and even if a sticky rice cake adheres, it can be easily wiped off with a cloth or the like. Moreover, by having such a structure, the effect that the smell of the resin of the lid 3 and the smell of the silicon rubber of the steam packing 13 and the smell of the sticking are not attached to the rice can be obtained.

  As described above, in the present embodiment, the heat of the heat sink heated by the lid heater is easily transferred to the steam path portion of the heat sink, and the occurrence of dew in the steam passage portion during heat retention is greatly reduced. Thus, the heat retaining property can be improved, and since the steam path portion of the heat radiating plate is formed integrally with the heat radiating plate, there is no gap and the careability of the steam passage portion can be improved.

(Embodiment 2)
FIG. 2 shows a rice cooker according to Embodiment 2 of the present invention. Since the structure of the rice cooker is the same as that of Embodiment 1, the description thereof will be omitted, and the description will focus on the differences.

  As shown in the figure, the steam cylinder 9 is detachably mounted from the outside of the lid 3. In addition, the valve packing 16 provided on the outer periphery of the steam cylinder 9 is configured to be fitted with the inner surface of the steam passage portion 6 of the heat radiating plate 4 so as to be sealed.

  With the above configuration, since the diameter of the steam passage portion 6 of the heat radiating plate 4 is stable, the fitting and detachment of the steam cylinder 9 is maintained in the initial state, and the change in fitting force due to aging due to heat is prevented. can do. Further, if the diameter of the steam passage portion 6 of the heat radiating plate 4 is increased and the volume of the steam tube 9 is increased, the steam tube 9 can be easily removed, and the steam passage portion 6 of the heat radiating plate 4 can be easily attached to the cloth width. Can be wiped off, etc., and the care can be improved.

  As described above, in this embodiment, the steam passage portion formed by the heat sink and the steam passage portion of the lid body is equipped with a steam cylinder that is detachable from the outside of the lid body. The stick can be prevented from escaping to the outside, and even if the stick adheres to the steam passage, the steam tube can be removed and the steam passage can be easily wiped off with a cloth. Can be improved.

(Embodiment 3)
3 and 4 show a rice cooker according to Embodiment 3 of the present invention. Since the structure of the rice cooker is the same as that of Embodiment 1, the description thereof will be omitted, and the description will focus on the differences.

  As shown in FIG. 3, the steam passage portion 7 in which the heat radiating plate 4 is provided in the lid 3 via the steam packing 13 by the flange portion 6 a that is bent outward from the upper end portion of the steam passage portion 6 of the heat radiating plate 4. It is fixed. That is, by fixing the heat radiating plate 4 to the steam passage portion 7, the steam packing 13 is sandwiched, so that the heat radiating plate 4 can be securely attached to the lid 3, and the intended purpose can be achieved. .

  Further, as shown in FIG. 4, the guide surface 6b of the steam tube 9 is formed at the bent corner portion of the flange portion 6a, so that the steam tube 9 can be easily attached and detached and can be handled easily. The guide surface 6b is formed by cutting it diagonally as shown in the figure or by making it into an R shape.

  Furthermore, although not shown in figure, the surface of the steam passage part 6 of the heat sink 4 is subjected to either rust prevention, antibacterial treatment, or both, which further improves care and is hygienic. It is said.

  Thus, in this Embodiment, a heat sink can be reliably attached to a cover body, and the intended objective can be achieved. In addition, the steam cylinder is easy to attach and detach, and can be handled easily. Furthermore, it is possible to improve the care of the steam passage portion of the heat sink and to make it hygienic.

  As described above, the rice cooker according to the present invention can greatly reduce dew condensation in the steam passage during heat insulation, improve heat insulation and improve care of the steam passage portion. Therefore, it can be applied not only for home use but also for business rice cookers.

Sectional drawing which shows the rice cooker in Embodiment 1 of this invention. Sectional drawing of the steam passage part of the rice cooker in Embodiment 2 of this invention. Sectional drawing of the steam passage part of the rice cooker in Embodiment 3 of this invention. Sectional drawing which shows the other steam channel | path part structure of the heat sink in the rice cooker.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rice cooker main body 2 Pan 3 Cover body 4 Heat sink 5 Steam hole 6 Steam passage part 6a Flange part 6b of heat sink Guide surface 7 Steam path part of cover body 8 Cover heater 9 Steam cylinder 13 Steam packing

Claims (5)

A rice cooker body that opens the upper surface and detachably stores the pan, a lid that includes the pan and covers the upper surface opening of the rice cooker body, and a heat sink that is provided below the lid and covers the upper surface opening of the pan The radiator plate is provided with a lid heater for heating, a steam hole for guiding the steam in the pan to the outside, and a cylindrical steam passage portion, and this cylindrical steam passage portion is formed integrally with the heat sink. And a rice cooker arranged in a steam passage provided in the lid. The rice cooker according to claim 1, wherein the steam passage portion formed by the heat radiation plate and the steam passage portion of the lid body is equipped with a steam cylinder that is detachable from the outside of the lid body. The rice cooker according to claim 1 or 2, wherein the heat sink is fixed to the steam passage portion provided on the lid body via the steam packing by a flange portion where the upper end portion of the steam passage portion of the heat sink is bent outward. The rice cooker of Claim 3 which formed the guide surface of the steam pipe | tube in the bending corner part of the flange part. The rice cooker of any one of Claims 1-4 which gave rust prevention and antibacterial treatment to the surface of the vapor | steam channel | path part of a heat sink.