JP3298339B2 - 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 provided with an electromagnetic induction heating source mainly used at home and for cooking rice by heating rice in a pot.

[0002]

2. Description of the Related Art In recent years, rice cookers that can cook more deliciously have been required due to the higher quality of eating habits, and rice cookers that can cook rice with higher heating power and that use safe electromagnetic induction heating have attracted attention. ing. This rice cooker using electromagnetic induction heating has an operation unit for cooking rice cooking, an operation board for the operation, a heating board for supplying a high-frequency current to a heating coil for induction heating of the pan, and control of the operation board and the heating board It has a power supply board for supplying power to the components.

[0003]

In the conventional rice cooker described above, the operation board is fixed inside the rice cooker main body corresponding to the operation section of the rice cooker main body, and requires relatively large parts. The heating board and the power supply board are fixed below the heating coil. In this configuration, the substrates are separated from each other, and these connection lines need to be long. Therefore, it is necessary to treat the connection lines so as not to be caught or damaged during assembly. Further, since the heating substrate and the power supply substrate are fixed horizontally to the rice cooker main body, unnecessary substances such as dust and water tend to collect.

[0004] The present invention has focused on the above problems,
A first object is to provide an inexpensive rice cooker that is compact, saves resources, and reduces the number of assembly steps.
A second object is to provide a rice cooker that has been made more compact. A third object of the present invention is to provide a rice cooker in which unnecessary items are eliminated.

[0005]

To achieve the first object, the present invention provides a rice cooker main body, a pot removably housed in the rice cooker main body, and a rice cooker main body which can be opened and closed. A cover, an induction heating device that heats and cooks the pot, an operation unit disposed on the upper front of the rice cooker body for operating rice cooking, and provided inside the rice cooker body corresponding to the operation unit. Operation board, a heating board for driving the induction heating device, and a power supply board for supplying power to both boards,
The heating board and the power board are perpendicular to the rice cooker body
And an eave portion is provided in a part of the substrate member, and these substrates are connected to each other and fixed to one substrate member to form a rice cooker as a substrate unit.

In order to achieve the second object, according to the present invention, the power supply substrate is disposed closer to the substrate member than the heating substrate, and the substrate member is provided with a ventilation hole at a position corresponding to the power supply substrate. .

[0007]

According to the present invention, the operation board, the heating board, and the power supply board are fixed to the board member to constitute the board unit, so that the connecting device for electrically connecting the boards can be shortened. Yes, without unnecessary connection processing. In addition, since the power supply substrate and the heating substrate are disposed vertically with respect to the rice cooker and the eaves are provided, unnecessary objects do not accumulate.

Further, since the power supply board is disposed on the board member side and the hole is provided below the board member corresponding to the power supply board, the temperature of the board atmosphere increases due to self-heating on the power supply board during use. Is preventing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG. In the figure, a pot 2 for putting rice and water is provided in a protective frame 3 inside a rice cooker main body 1, and an induction heating device 4 comprising an induction heating coil is provided on a lower surface of the protective frame 3 corresponding to the pot 2. Has been fixed. An operation unit 5 for performing a rice cooking operation is arranged on an upper front portion of the rice cooker main body 1, and a board unit 6 is fixed inside the rice cooker main body 1 corresponding to the operation unit 5.

The operation unit 6 comprises an operation board 7, a heating board 8, a power supply board 9, and a board member 10 to which the boards 7 to 9 are attached. The operation board 7 has a display section 7a and an operation button section 7b arranged at positions corresponding to the operation components. The heating substrate 8 is electrically connected to the induction heating device 4, and supplies a high-frequency current to the induction heating device 4 to heat the pot 2. The power supply board 9 receives a power supply from an external power supply, converts the power supply to a power supply required for the boards 7 and 8, and supplies a current. The substrates 7 to 9 are connected by connection devices 11a and 11b, respectively, because of the necessity of electrical connection.

As described above, according to this embodiment, in the rice cooker for performing induction heating, the operation board 7, which is always required,
By fixing the heating substrate 8 and the power supply substrate 9 to the substrate member 10 to form the substrate unit 6, the connection devices 11a and 11b for connecting the substrates 7 to 9 can be significantly shortened as compared with the related art. Therefore, the number of wiring processing steps can be reduced, and the assembly process can be simplified since the board unit 6 can be assembled in advance.

Next, a second embodiment of the present invention will be described with reference to FIG. The heating board 8 and the power supply board 9 are mounted below the operation board 7 in the opposite directions, and the respective boards are connected by bending the flexible insulation-coated lead wires 12 to form a more compact board unit. The rice cooker body can also be made compact with less resources.

FIG. 3 shows a third embodiment of the present invention, in which a heating board 8 and a power supply board 9 are mounted together with their components together, and connectors 13 and 14 mounted on both boards are directly connected from above the boards. Since they are engaged with each other, a more compact board unit 6 than in the second embodiment can be formed.

Next, a fourth embodiment of the present invention will be described with reference to FIG. As in the second embodiment, the heating board 8 and the power supply board 9 are attached to the board member 10 together, and this is the power supply board 9 attached to the board member 10 side.
The heat tends to accumulate, the temperature of each component approaches the usage limit, and it may cause a failure. Therefore, the substrate member 10
If the air vent 10a corresponding to the power supply board 9 is provided to release the air heated by the heat generated by the components, the temperature of each component is reduced, and the reliability of the component is improved.

FIG. 5 shows a fifth embodiment of the present invention. As in the other embodiments, the heating board 8 is attached to the rice cooker body 1 in a vertical direction. 10, an eave portion 10b is provided. With this configuration, it is possible to eliminate the accumulation of unnecessary materials on the heating substrate 8.

[0016]

As is apparent from the above embodiments, according to the present invention, the operation board, the heating board, and the power supply board are fixed to the board member to constitute the board unit, so that each board is electrically connected. The connecting device to be connected can be shortened, the connection processing is not performed unnecessarily, and the assembling property can be improved.

Further, since the power supply substrate is disposed on the substrate member side and the hole is provided below the substrate member corresponding to the power supply substrate, the temperature of the substrate atmosphere increases due to self-heating on the power supply substrate during use. Is preventing. Since the power supply board and the heating board are vertically arranged with respect to the rice cooker body and provided with an eave portion, it is possible to prevent unnecessary objects from being accumulated.

[Brief description of the drawings]

FIG. 1 is a side view showing a rice cooker according to a first embodiment of the present invention in a partially cutaway cross section.

FIG. 2 is an enlarged side view of a board unit of a rice cooker according to a second embodiment of the present invention.

FIG. 3 is an enlarged side view of a board unit of a rice cooker according to a third embodiment of the present invention.

FIG. 4 is an enlarged side view of a board unit of a rice cooker according to a fourth embodiment of the present invention.

FIG. 5 is an enlarged side view of a board unit of a rice cooker according to a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rice cooker main body 2 Pot 3 Protective frame 4 Induction heating device 5 Operation part 6 Substrate unit 7 Operation substrate 8 Heating substrate 9 Power supply substrate 10 Substrate members 11a and 11b Connection device 12 Lead wire with insulation coating 13, 14 Connector

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kiyoshi Horiuchi 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Hisakazu Endo 7-6 Tonoshimacho, Kadoma, Osaka Excel Co., Ltd. Techno (72) Inventor Toshiyuki Nakamura 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Norio Ikeda 1006 Oji Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Invention Person Masahiro Koyama 1006 Kadoma Kadoma, Kadoma City, Osaka (72) Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Shoji Shimono 1006 Kadoma Odama, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) −217875 (JP, A) JP-A-6-304065 (JP, A) JP-A-4-108416 (JP, A) JP-A-5-13320 (JP, U) (58) Field (Int.Cl. ^7, DB name) A47J 27/00

Claims (2)

(57) [Claims] 1. A rice cooker main body, a pot removably housed in the rice cooker main body, a lid body for opening and closing the rice cooker main body, an induction heating device for heating and cooking the pot, and the rice cooker An operation unit arranged on the front upper portion of the rice cooker body for operating rice cooking, an operation substrate provided inside the rice cooker main body corresponding to the operation unit, a heating substrate for driving an induction heating device, and both substrates and a power supply board for supplying power to the
The heating board and power supply board are arranged vertically to the rice cooker body.
The rice cooker is provided with an eave portion provided on a part of the substrate member, and these substrates are connected to each other and fixed to one substrate member to form a substrate unit. 2. The rice cooker according to claim 1, wherein the power supply board is disposed closer to the board member than the heating board, and the board member is provided with a ventilation hole at a position corresponding to the power supply board.