JP3412467B2 - rice cooker - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker used in general households and the like. 2. Description of the Related Art Conventionally, a rice cooker of this kind is, for example, shown in FIG.
The configuration was as shown in FIG. In the figure, reference numeral 1 denotes a cylindrical body having an open upper surface.
A protection frame 2 serving as an inner pot storage portion is provided, and the protection frame 2 is formed of a non-metallic material into a bottomed cylindrical shape.
Is engaged with the inside of the upper end of the body 1. [0003] Reference numeral 3 denotes an inner pot in which a flange 4 protruding outward is formed at an upper end opening.
By being placed in a suspended state on the upper surface of the protective frame 3, the protective frame 2 is detachably disposed in the protective frame 2. An induction coil 5 is provided outside the protection frame 2, and the induction coil 5 is formed of a heat-resistant resin material on a lower portion of the outer circumference of the protection frame 2 so that the distance to the outer peripheral surface of the inner pot 3 is constant. It is supported by the formed coil cover 6. [0004] Reference numeral 7 denotes an outer cover made of a synthetic resin, and the outer cover 7 is rotatably supported via a pin 9 on a hinge member 8 integrally formed on an upper portion of an upper frame 23. 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 as 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 heat radiation plate 11 generates heat by the electromagnetic action of the induction coil 12. Further, a sensor 14 for detecting the temperature of the heat radiating plate 11 is directly attached to the heat radiating plate 11 with an aluminum tape, and the temperature of the heat radiating plate 11 is adjusted. An engaging member 16 is located on the opposite side of the hinge member 8 and is integrally formed on the upper end of the protective frame 2. An engaging lever 17 is provided on the outer lid 7 so as to face the engaging member 16. Is instructed to be rotatable via a pin 18. When the outer lid is closed, the pot packing 20 presses against the flange 4 of the inner pot 3 to seal the inner pot 3. Reference numeral 24 denotes a steam cylinder, which prevents squirt from leaking outside. Reference numeral 25 denotes a control board, which controls input and output of the current to the induction coil 12 and signals of the operation display unit 26. A cooling fan 27 cools the control board 25 and the induction coil 5. [0007] However, in the above-mentioned rice cooker, there is a problem that the size of the main body relative to the inner pot of the rice cooker is large, and the rice cooker is not easy to carry and install. In addition, since the heat sink cannot be attached or detached, the heat sink cannot be directly cleaned, resulting in poor maintenance. An object of the present invention is to solve the above-mentioned problem, and to realize a rice cooker in which a heat radiating plate can be attached and detached with a compact structure and the heat radiating plate is securely attached at the time of cooking rice. In order to solve the above-mentioned problems, the present invention provides a main body for storing a pot therein, a lid for opening and closing an upper opening of the main body, and a lid for opening and closing the lid. Shaft freely
The hinge axis to be supported, and the hinge axis is located substantially opposite to the hinge axis.
A hook button attached to the main body,
A lid forming an outer surface of the lid, and the pan of the outer lid;
An outer lid cover that covers the side, and a pot side of the outer lid cover.
Is arranged freely Naru radiator plate removably, said heat sink the outer
A plurality of cover engaging portions each having an engaging portion for engaging the lid cover, and at least one of the lid engaging portions;
One is an engaging claw for engaging the engaging portion of the hook button.
It has a configuration having a portion . This makes it possible to realize a rice cooker having a compact structure and a detachable heat sink. [0010] The invention according to claim 1 has a pot inside.
A main body to be housed, a lid for opening and closing the upper surface opening of the main body, a hinge shaft for pivotally supporting the lid for opening and closing,
It is located almost opposite to the hinge axis and is not attached to the main body.
And a lid button forming an outer surface of the lid.
And an outer lid cover that covers the pot side of the outer lid.
A detachable heat sink is arranged on the pot side of the outer lid cover, and the heat sink is engaged with the outer lid cover.
With a plurality of lid engaging portions having
Preferably, at least one of the lid engaging portions includes the hook button.
It has a configuration having an engaging claw portion for engaging the engaging portion . This makes it possible to realize a rice cooker having a compact structure and a detachable heat sink. (Embodiment 1) A first embodiment of the present invention will be described with reference to FIGS. In FIGS. 1, 2, 3 and 4, the main body 28 is opened like the conventional rice cooker, and a pot 29 for storing the food to be heated is arranged inside the main body 28. A protection frame 30 on which the pot 29 is placed and a heater 31 arranged on the outer periphery of the protection frame 30 are fixed. If the heater 31 is IH, more delicious rice can be cooked. The upper openings of the main body 28 and the pan 29 are covered with a lid 32 so as to be openable and closable.
The main body 28 is provided with an engaging portion 35 which engages with the lid 32 via a hook button 34. A hinge spring 36 is provided on the hinge shaft 33 so that a force is applied to the lid 32 in the lid opening direction. Reference numeral 32a is an outer lid that forms the outer surface of the lid 32. Reference numeral 32b is an outer lid cover that covers the pot 29 side of the outer lid 32a. The outer cover 32b is a heat sink 38.
And a heat sink mounting portion 32c for engaging
37 are arranged. Further, a heat radiating plate 38 which is heated by heat generated from the lid heater 37 is disposed on the side of the outer lid cover 32b. If the lid heater 37 is an IH heater, the radiator plate 38 is more efficiently heated by the lines of magnetic force. The heat-generating portion 38a that generates heat is usually made of aluminum, and in the case of IH, stainless steel or iron-based metal is used as a material. The heat sink 38 is provided with the above-mentioned engaging portion 35. The heat sink 38 has an outer cover 32b.
An engagement portion 38b and an engagement claw portion 38c that are detachable from the main body are provided. The operation of the rice cooker lid configured as described above will be described below. A heat radiating plate 38 is attached to the lid 32, and the lid 32 is provided with an engaging portion 32 b of the heat radiating plate 38.
The cover is closed by engaging the engaging portion 35 of the main body 28 via the. When the engagement means of the lid 32 and the main body 28, that is, the engagement of the hook button 34 is released, the lid 32 starts opening by the force of the hinge spring 36, and rotates about the hinge shaft 33. Next, the operation of the configuration of the embodiment will be described. As shown in FIG. 1, a cover cover is attached to the outer cover 32b.
A heater 37 is arranged. In this embodiment, the lid heater-3 is used.
7 is described as IH. On the pot 29 side of the outer lid cover 32b, a heat radiating plate heat generating portion 38a which generates heat by magnetic lines of force generated from the lid heater 37 is disposed, so that delicious rice which is the original purpose of the rice cooker can be cooked. is there.
In other words, the heat radiating plate 38 itself generates heat during cooking rice, and the heat at the bottom of the pan is heated.
Due to the heater effect of the heat sink and the heat radiating plate 38, it is possible to heat the surroundings like an oven and bake the rice. This is the same as steamed potato compared to baked potato. This is well known because starch can become sweet when cooked well. On the other hand, the outer periphery of the heat radiating plate 38 is provided with an engaging portion 38b and an engaging claw portion 38c detachable from the lid 32, so that the dirt on the heat radiating plate 38 can be easily washed away. Then, by closing the lid via the heat sink, it is possible to realize that the heat sink is securely attached at the time of cooking rice. Further, the heat sink engaging portion 32b is engaged with the front portion of the lid, thereby realizing a rice cooker with a compact structure and a detachable heat sink. Further, since the configuration in which the heat radiating plate 38 is detachable from the lid body is small in shape, it can be washed in a dishwasher like a dish, so that the cleaning time can be reduced and the time can be effectively used. It can be possible. (Embodiment 2) In a recent rice cooker, in order to improve the rice cooking performance,
Means for detecting the temperature inside 9 and estimating the rice cooking state from the temperature is employed, and the lid sensor 41 has such a function. The lid sensor 41 has a bottomed cylindrical temperature detecting portion 41c and a sensor spring 41b made of an elastic body, preferably made of a spring or rubber.
The bottom of c is urged downward by a sensor spring 41a so as to contact the heat sink 38. As shown in FIG. 4, when the heat radiating plate 38 is mounted on the lid 32, the lid sensor 41 is pushed upward, but the upward movement causes a part of the cylindrical portion constituting the lid sensor 41 to move upward. Sensor lever 41b engaged with
Can operate the open / close switch 42 to detect the attachment of the heat sink 48. This makes it possible to detect whether or not the heat sink 38 is attached. Then, the temperature of the pot 29 is reliably detected, and a radiator plate can be attached and detached with a compact structure. As described above, the first aspect of the present invention provides
A main body for storing the pan therein, a lid for opening and closing the upper opening of the main body, and a hinge for pivotally supporting the lid for opening and closing
Shaft, and attached to the main body located substantially opposite to the hinge shaft.
And a hook button which is provided with
An outer lid forming an outer surface, and an outer lid covering the pot side of the outer lid
A detachable radiator plate is disposed on the pot side of the outer cover, and the radiator plate engages the outer cover.
Having a lid engaging portion of the plurality of positions having an engagement portion for engagement
And at least one of the lid engaging portions is
And an engaging claw for engaging the engaging portion of the button . This has a compact structure and a removable radiator plate for reliable heat dissipation during cooking.
A rice cooker to which a plate is attached can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a main part of a rice cooker according to a first embodiment of the present invention. FIG. 2 is a schematic view showing attachment and detachment of a heat sink of the rice cooker. FIG. 4 is a schematic view of the periphery of a lid sensor of a rice cooker according to a second embodiment of the present invention. FIG. 5 is a sectional view of a main part of a conventional rice cooker. Main body 32 Lid 33 Hinge shaft 34 Hook button 38 Heat sink 38b Lid engaging part 41 Lid sensor 41a Sensor spring 41c Temperature detecting part

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiro Shinabe 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd. (56) References -243873 (JP, A) JP-A-10-234567 (JP, A) JP-A-7-27415 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 27/00 103

Claims (1)

(57) [Claims 1] A main body for storing a pan therein, a lid for opening and closing the upper opening of the main body, and a lid for opening and closing the lid.
A hinge shaft which is pivotally supported, and which is located substantially opposite to the hinge shaft,
With a hook button attached to the body
The cover is an outer cover forming an outer surface of the cover, and the outer cover
An outer lid cover that covers the pot side, wherein the outer lid cover has a pot side
Universal Naru radiator plate detachable is disposed on the heat sink the
A plurality of lid engaging portions having an engaging portion for engaging the outer lid cover, and at least the lid engaging portion
One is for engaging the engaging portion of the hook button.
Rice cooker with claw part .