JP2010104549A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve switch installation in an area of a transparent window section to improve the operability and design while securing a double seal structure of the transparent window section. <P>SOLUTION: The transparent window section 9a is constructed as a part of a wall of a sealed chamber 20 doubly sealed inside a cover body 7, an insulated space g is formed inside the sealed chamber 20, and a spacer 23 which fills the insulated space g is placed between embosses 9b, 22a on top and bottom to transmit the pressing force from the emboss 9b on a top board 9 side above to the emboss 22a on a decoration sheet side below through the spacer 23 and to make an operation section 25 of a switch 24 operate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rice cooker including a display unit for displaying an operation state and a part of an operation unit in a transparent window of a lid.

In an electronically controlled rice cooker, it is essential to equip an operation board having an operation unit and a display unit, and the installation position is roughly divided into the following two types.
A. Installed in the product body B. Items installed in the lid provided rotatably on the product body Among these, the operation part and the display part A are installed on the product body part, and it is difficult to secure the operation board installation space. However, the outer dimensions of the product must be increased, and the number of parts is further increased, which is inefficient.

  On the other hand, the above-mentioned B in which the operation unit and the display unit are installed in the lid body can easily secure the installation space for the operation board, and can be designed to have a smaller external dimension of the product compared to the above-mentioned A. Therefore, the number of parts can be reduced, and it is efficient (for example, refer to Patent Document 1).

JP 2000-070129 A (FIG. 1)

  However, in the case of B, since the substrate chamber for accommodating the operation unit and the display unit is installed above the inner pot in which an object to be heated (rice, water, etc.) is placed, it is easily affected by heat. The substrate room has a large temperature change, and there is a problem that condensation easily occurs on the display unit due to a temperature difference from the outside air.

  In order to solve this, special considerations such as sealing the substrate chamber, installing a desiccant, and moving a heat source (such as a lid heater) to a position as far as possible from the substrate chamber are necessary. However, when the heat source is moved away from the substrate chamber, there is only an alternative of reducing the area for heating the object to be heated or increasing the product size and moving the substrate chamber away.

  By the way, in order to prevent the dew condensation, it is generally performed that a transparent window portion visually recognized by a user is further sealed in a substrate chamber to form a double seal structure. However, if this double seal structure is used, the distance from the switch mounted on the operation board to the transparent window becomes longer, so it is impossible to place switches around the display in the area of the transparent window. The actual state is that switches are arranged away from the display portion, that is, outside the transparent window portion. For this reason, it is difficult to check the correspondence between the operation content and the display content, and it is difficult for the user to perform an intuitive operation, resulting in poor operability.

  The technical problem of the present invention is that switches can be provided in the area of the transparent window while ensuring a double seal structure of the transparent window, so that operability and design can be improved. There is.

  The rice cooker according to the present invention has a heating means, a main body in which the inner pot is detachably accommodated, and a substrate chamber in which the operation board is accommodated, and is hinged to the main body to open and close the upper opening of the inner pot. A lid that can be freely closed and a sealed chamber that houses the liquid crystal display device and that is disposed above the operation substrate in the substrate chamber and is hermetically maintained are provided with a transparent window portion integrally therewith. A liquid crystal holding member that holds the top plate of the lid, the liquid crystal display device, and an operation portion of a switch mounted on the operation board in the vicinity of the liquid crystal display portion, and the liquid crystal holding member that is flush with the liquid crystal display surface A decorative sheet that is pasted to cover at least the operation part of the switch, and a sealing means provided between the inner surface around the transparent window part of the top plate and the outer peripheral rib of the liquid crystal holding member, Forming a heat insulation space between the top and the decorative sheet The embosses are formed at positions corresponding to the operation portions of the switch on the top plate and the decorative sheet, and the pressing force from the emboss on the top plate side is transmitted between the embosses to the emboss on the decorative sheet side, so that the switch A spacer for operating the operation unit is provided.

  According to the rice cooker of the present invention, a sealed chamber that accommodates a liquid crystal display device and is arranged above the operation substrate in the substrate chamber and is kept airtight, and a top plate of a lid body integrally provided with a transparent window portion; A liquid crystal holding member that holds the liquid crystal display device and has an operation portion of a switch mounted on the operation board in the vicinity of the liquid crystal display portion, and is attached to the liquid crystal holding member so as to be flush with the liquid crystal display surface And a sealing sheet that covers at least the operation part of the switch, and sealing means provided between the inner surface of the top panel around the transparent window and the outer peripheral rib of the liquid crystal holding member. A heat insulating space is formed between them, and embosses are formed at positions corresponding to the operation portions of the switches on the top plate and the decorative sheet, respectively. En Since the spacer for operating the switch operating portion by transmitting to the switch is provided, the transparent window portion region is secured while ensuring a double seal structure of the transparent window portion, that is, preventing the transparent window portion from being clouded. Switches can be provided in the inside, and operability and design can be improved.

The present invention will be described below with reference to illustrated embodiments.
FIG. 1 is an exploded perspective view showing a lid of a rice cooker according to an embodiment of the present invention, FIG. 2 is a sectional view of the substrate chamber and the sealed chamber as viewed from the front, and FIG. 3 is a longitudinal sectional view showing the overall configuration. FIG. 4 is a perspective view showing the overall configuration.

  The rice cooker 1 according to the present embodiment, as shown in FIG. 3, heats the inner pot 2 containing an object to be heated (rice, water, etc.) from below with heating means 3A such as an induction heating coil, and is disposed at the top. Heating means, that is, a lid heater 3B, also heats the object to be heated, and has a function of cooling and condensing (collecting) the steam generated at this time by directing the generated steam to the water tank 4 storing the cooling water. is doing.

  More specifically, the rice cooker 1 has a heating means 3A as shown in FIGS. 3 and 4, a main body 5 in which the inner pot 2 is detachably accommodated, and a lid heater 3B. And a lid 7 that covers the water tank 4 disposed at the front of the main body 5 from above, and stores cooling water and stores the front of the main body. The water tank 4 is detachably mounted on the bottom plate 8 of the water tank, and the steam generated from the heated object in the inner pot 2 during cooking is interposed between the inner pot 2 and the water tank 4 during the cooking. And a steam conduit (not shown) for guiding the water into the cooling water and condensing it into the cooling water.

  The lid body 7 is covered with a top plate 9 at the top, and a substrate chamber 11 that is substantially sealed by a seal member 27 is provided inside the front side thereof to prevent condensation. An operation substrate 12 is fixed to the bottom of the substrate chamber 11, and a hermetic chamber 20 that contains the liquid crystal display device 13 and is kept airtight is disposed above the operation substrate 12. The liquid crystal display unit can be visually recognized by the transparent window 9a.

  The sealed chamber 20 holds the lid top plate 9 integrally provided with the transparent window 9a and the liquid crystal display device 13, and is mounted on the operation board in the vicinity of the liquid crystal display, that is, in the area of the transparent window 9a. A liquid crystal holding member 21 on which the operation unit 25 of the switch 24 is disposed, a decorative sheet 22 that is attached to the liquid crystal holding member 21 so as to be flush with the liquid crystal display surface, and covers at least the operation unit 25 of the switch 24; It is composed of sealing means, ie, an adhesive 26, provided between the inner surface of the top plate 9 around the transparent window 9a and the outer peripheral rib of the liquid crystal holding member, and a heat insulating space g is provided between the top plate 9 and the decorative sheet 22. It is supposed to be formed. Embosses 9b and 22a are formed at positions corresponding to the operation section 25 of the switch 24 on the top plate 9 and the decorative sheet 22, and a heat insulating space g is buried between the embosses 9b and 22a so that the top plate side A spacer 23 is provided to transmit the pressing force from the emboss 9b to the emboss 22a on the decorative sheet side and operate the operation unit 25 of the switch 24. 1 is an operation key of the switch 24a mounted outside the sealed chamber 20 in the operation substrate 12 in the substrate chamber 11, that is, outside the area of the transparent window 9a.

  Thus, in the rice cooker of this embodiment, while forming the transparent window 9a part as a part of the wall of the sealed chamber 20 double-sealed in the lid body 7, it is formed in the sealed chamber 20. A spacer 23 that fills the heat insulating space g is disposed between the upper and lower embosses 9b, 22a, and the pressing force from the emboss 9b on the top plate side is transmitted to the emboss 22a on the decorative sheet side via the spacer 23 to switch 24 The operation unit 25 is operated, so that the double seal structure of the transparent window 9a portion is secured, that is, the transparent windows 9a portion is prevented from being clouded, and the switches are provided in the region of the transparent window 9a portion. The operability and design can be improved.

It is a disassembled perspective view which shows the cover body of the rice cooker which concerns on one Embodiment of this invention. It is sectional drawing which looked at the substrate room and sealed room of the rice cooker which concerns on one Embodiment of this invention from the front. It is a longitudinal section showing the whole rice cooker composition concerning one embodiment of the present invention. It is a perspective view showing the whole rice cooker composition concerning one embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Rice cooker, 2 Inner pot, 3A, 3B Heating means, 4 Water tank, 5 Main body, 6 Hinge, 7 Cover body, 9 Top plate, 9a Transparent window, 9b Embossing on the top plate side, 11 Substrate room, 12 Operation board , 13 Liquid crystal display device, 20 Sealed chamber, 21 Liquid crystal holding member, 22 Decoration sheet, 22a Embossing on the decoration sheet side, 23 Spacer, 24 switch, 25 Switch operation part, 26 Adhesive (sealing means), g Thermal insulation space.

Claims (2)

A lid having a heating means and having a main body in which the inner hook is detachably accommodated and a substrate chamber for accommodating the operation board, and is hinged to the main body to close the upper opening of the inner hook so as to be freely opened and closed And a sealed chamber that houses the liquid crystal display device and is disposed above the operation substrate in the substrate chamber and is kept airtight,
The sealed chamber,
A top plate of the lid body integrally provided with a transparent window;
A liquid crystal holding member that holds the liquid crystal display device and has an operation portion of a switch mounted on the operation board in the vicinity of the liquid crystal display portion,
A decorative sheet that is attached to the liquid crystal holding member so as to be flush with the liquid crystal display surface and covers at least the operation portion of the switch;
It comprises a sealing means provided between the inner surface of the periphery of the transparent window portion on the top plate and the outer peripheral rib of the liquid crystal holding member,
A heat insulating space is formed between the top plate and the decorative sheet, and embosses are respectively formed at positions corresponding to the operation portions of the switches on the top plate and the decorative sheet, and the top plate side is provided between the embossed portions. A rice cooker provided with a spacer for transmitting a pressing pressure from the emboss to the emboss on the decorative sheet side to operate the operation portion of the switch.   The rice cooker according to claim 1, further comprising a water tank for condensing steam generated from an object to be heated in the inner pot during cooking.

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