JP3468050B2 - rice cooker - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker for general household use or business use.

[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 a pan storage section is provided and the protective frame 2
Is formed into a bottomed cylindrical shape by a non-metallic material, and the upper end of the protective frame 2 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 arranged 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 board, which controls the input / output state of the induction coil 12 and the signal of the operation display unit 26. A cooling fan 27 cools the control board 25 and the induction coil 5.

[0007]

However, the above-mentioned rice cooker has a problem that the size of the main body with respect to the inner pot of the rice cooker is large, and the rice cooker is difficult to carry and install.

The present invention is to solve the above problems, and an object thereof is to realize a rice cooker having a compact structure.

[0009]

In order to solve the above-mentioned problems, the present invention provides a main body, a lid for covering the upper part of the main body, an inner pan detachably housed in the main body, and the inner pan. A bottom heating coil for inductively heating the bottom heating coil, a protective frame for supporting the bottom heating coil, a controller for supplying high-frequency power to the bottom heating coil, and an operation part arranged on the lid, and the shape of the main body When viewed from above, the front part has a substantially circular shape and the rear part has a substantially rectangular shape, and the substrate of the control part is a heater for cooling the element.
A tosink and the heat sink is secured to a protective frame.
The substrate is provided with the heat sink and the protective frame.
It is a rice cooker that is sandwiched and fixed .

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 includes a main body,
A lid for covering the upper part of the main body, an inner pan detachably housed in the main body, a bottom heating coil for inductively heating the inner pan, a protective frame for supporting the bottom heating coil, and the bottom heating coil A control unit for supplying high-frequency power to the, and an operation unit arranged on the lid, and the shape of the main body is
The front a substantially circular shape, and the rear and substantially square shape, the control unit
The substrate of the device includes a heat sink for cooling the device,
The heat sink is fixed to a protective frame, and the substrate is the heat sink.
It is sandwiched and fixed by the heat sink and the protective frame.
By using the rice cooker as described above, the parts in the main body can be collectively arranged in the lower rear part, the space in the main body can be efficiently used, and the main body can be made compact. Furthermore, the board can be used as a protective frame with a simple configuration.
Can be attached, contributing to the compactness of the main unit
be able to.

The invention according to claim 2 is formed of a flame-retardant material.
A cord made of flame-retardant material that connects the power supply to the protective frame
Thermi that connects the reel to the bottom heating coil and control unit
And a cable between the terminal and the outer shell.
By arranging the reels, it is possible to configure the periphery of the terminal with a flame-retardant member, ensure safety, and efficiently arrange the cord reels .

[0012]

Embodiments of the present invention will be described with reference to FIGS. As disclosed in the figures, the features of the present invention include:
The shape of the main body, the arrangement of the protective frame and the control unit and the heat sink,
There is a point to realize compactness such as arrangement of cord reels. The devised points will be described in order.

Conventionally, since the heating substrate 70 has a high heat generating element, it has been required to be cooled. Therefore, it is arranged on the bottom surface or the front surface portion in the main body 71, but in this configuration, since the heating substrate 70 is stored, a space is required on the front portion or the bottom surface, and the front-rear length or height of the product is increased. Was getting bigger.

In view of this, in the present invention, the shape of the main body 71 is substantially circular when viewed from above, and the rear portion is substantially angular so that the heating substrate 70 and the like are formed as shown in FIG. , Was able to be arranged under the rear hinge portion 72.

In addition, the heating board 70, the power supply board 73, the board such as the cord reel 74, and the large current components are shown in FIG.
In the above, it is arranged on the protective frame 75 formed of a flame-retardant member.

Further, all the components on the board and the lead wires to be connected are arranged outward from the center of the main body.

As shown in FIG. 2, the board and the large current component such as the heating board 70, the power supply board 73, and the cord reel 74 are flame-retardant above and in the center of the main body when the product is in use. It is configured to be covered with the protective frame 75 formed in. Therefore, the periphery of the substrate and the high-current component can be made flame-retardant without using any other member, and water or the like can be prevented from entering from above, so that safety can be ensured. . At the same time,
Easy to assemble by facilitating lead wire processing
Moreover, each component can be arranged in a space-saving manner.

In order to prevent water from entering, a rib for preventing intrusion may be provided at the end of the protective frame 75 as shown in the figure.

Further, in FIG. 2, a heat sink 76 is arranged at a right angle to the heating substrate 70, and a cooling fan 77 is mounted on the heat sink 76. The heat sink 76
Has a substantially triangular cross section, and in order to guide the flow of cold air from the intake holes 78 in the rear portion of the main body 71 to the side surface or front surface of the main body 71, the fin shape of the heat sink 76 is arranged so as to face the front and rear of the main body. is doing. In addition, the heating substrate 70
In order to secure the cooling by attaching the heat generating component of No. 1 to the heat sink 76 and to suppress the impact due to the main body falling or the like, a screw mounting portion is provided in a part of the heating substrate 70, and the heat sink 76 is screwed to the screw mounting portion. ing.

The power supply board 73 has a heat sink 76.
It is inserted along the groove provided in, and is fixed so as to be sandwiched by the protective frame 75. Therefore, other fixing metal fittings are unnecessary, and the main body structure can be made more compact.

Further, as shown in FIG. 1, a cord reel 74 formed of a flame-retardant member is arranged at a corner of the main body 71, and either the heating substrate 70 or the power supply substrate 73 is provided on the opposite side of the cord reel 74. It is installed in the corner of.

On the other hand, regarding the lead wire for supplying the current to the bottom heating coil 79, the bottom heating coil 79 and the heating substrate 70 are conventionally provided at the connector portion provided on the heating substrate 70.
Although the upper wiring part was connected, the connector part usually needs a large one in order to supply a large current, which tends to hinder compactification of the main body. for that reason,
The wiring of the heating substrate 70 is a board-in type or the like to avoid the burden on the connection portion on the heating substrate 70 and to provide the terminal terminal connection portion 80 on the protective frame 75 formed of a flame-retardant member. And space is secured.

With such a structure, the space below the hinge portion 72 is effectively used. At this time, the terminal terminal connecting portion 80 has the flame-retardant protective frame 75 and the cord having the flame-retardant property. Since it is arranged so as to be surrounded by the reel 74, it also has safety around the terminal terminal connecting portion 80.

The heating board 70, the power board 73, and other control parts, the cord reel 74, the terminal terminal connection part 80, and the like should be arranged at substantially the same height as the inner pan 81 for space saving and size reduction. Needless to say.

[0025]

As described above, according to the invention of claim 1, the main body, the lid for covering the upper portion of the main body, the inner pan detachably accommodated in the main body, and the inner pan are provided. A bottom heating coil for induction heating, a protective frame that supports the bottom heating coil, a control unit that supplies high-frequency power to the bottom heating coil, and an operation unit arranged on the lid, and the shape of the main body is As viewed from above, the front part has a substantially circular shape, the rear part has a substantially rectangular shape, and the substrate of the control part is a heat shield for cooling the element.
And the heat sink is fixed to a protective frame,
The substrate is sandwiched between the heat sink and the protective frame.
By making it a rice cooker that is embedded and fixed , the parts inside the main body can be placed together at the lower rear,
The space in the main body can be efficiently used, and the main body can be made compact. Also a simple configuration
The board can be attached to the protective frame with the
It is possible to contribute to the activation.

According to the invention of claim 2 , flame retardant
Made of flame-retardant material that connects the power supply to the protective frame made of material
The bottom cord and the control unit.
And a terminal that continues to connect the terminal and the outer shell.
By arranging the cord reel in between, the periphery of the terminal can be formed of a flame-retardant member, safety can be ensured, and the cord reel can be efficiently arranged .

[Brief description of drawings]

FIG. 1 is a layout view of parts of a rice cooker according to an embodiment of the present invention.

FIG. 2 is a cutaway sectional view of the essential part of the rice cooker.

FIG. 3 is a cross-sectional view of a conventional rice cooker.

[Explanation of symbols]

70 Heating board 71 body 72 Hinge part 73 Power board 74 cord reel 75 protection frame 76 heat sink 77 Cooling fan 78 Intake hole 79 Bottom heating coil 80 Terminal terminal connection part 81 inner pot

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masatoshi Yagi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Masahiro Koyama 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-2-7383 (JP, A) JP-A-5-317164 (JP, A) JP-A-9-140559 (JP, A) JP-A-9-37933 (JP, A) JP-A-8-33556 (JP, A) JP-A-9-201274 (JP, A) JP-A-9-192008 (JP, A) Jitsuko Sho-48-44777 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47J 27/00

Claims (2)

(57) [Claims] 1. A main body, a lid for covering the upper part of the main body, an inner pan detachably housed in the main body, a bottom heating coil for inductively heating the inner pan, and a support for the bottom heating coil. The body includes a protective frame, a control unit that supplies high-frequency power to the bottom heating coil, and an operation unit disposed on the lid, and the main body has a substantially circular front portion and a rear portion when viewed from above. Has a substantially rectangular shape, and the substrate of the control unit is a heater for cooling the element.
A tosink and the heat sink is secured to a protective frame.
The substrate is provided with the heat sink and the protective frame.
Rice cooker that is sandwiched and fixed . 2. A power supply is connected to a protective frame made of flame-retardant material.
A cord reel made of continuous flame-retardant material and a bottom heating coil.
And a terminal for connecting a control unit and a control unit.
The cord reel is arranged between the terminal and the outer shell.
The rice cooker according to claim 1 .