JP2011189034A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker which prevents bad influence on an operation board or the like by steam, reduces a production cost, and also reduces bad influence on the operation board by the heat of a lid heater. <P>SOLUTION: In the rice cooker having a rice cooker body and a lid body located above the rice cooker body, the rice cooker body has an inner pan, a heating means for heating the inner pan and a control means for controlling the heating means, and the lid body has an operation part different from the lid body in which the operation board is stored, and has a first through hole for connection wiring, wherein the operation part has a second through hole for connection wiring to keep the control means and the operation board electrically connected by the connection wiring passing through the first through hole and the second through hole, so that the first through hole and the second through hole are sealed by a seal member. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention particularly relates to a rice cooker in which a lid is provided with an operation unit separate from the lid.

  Generally, a rice cooker has a plurality of heating means such as an induction coil, a heat retaining heater, a lid heater, etc., and automatically cooks and heats using these heating means to provide optimal rice to the user. Widely known.

  And recently, what provided the operation board in the lid of the rice cooker has been produced. In such a case, an operation unit is provided on the front surface of the lid, an operation board is disposed on the operation unit, and a display, a microcomputer, a switch, a battery, and the like are provided on the operation board.

  In the case where the operation substrate is provided on the lid, a sealed space is formed in the lid so that the vapor does not enter the operation substrate and the operation substrate and the like are arranged in the space. The thing shown in FIG. 8 is known as such. The rice cooker shown in the figure has a lid 1 and a rice cooker main body 2, and a recessed space 3 is formed in the recessed portion 3 which is depressed downward on the upper surface of the front side (opposite side of the hinge mechanism) of the lid 1. A resin operation unit 4 is detachably provided.

  The operation portion 4 is formed in a sealed space 5 therein, and is detachably mounted in the recessed space 3 by attracting an iron plate attached to the bottom to a magnet 6 provided on the upper surface of the recessed space 3. And in the said recessed space 3, the operation board | substrate 7, the indicator 8, LED9 as an indicator lamp, the operation button 10, the battery 11, etc. are provided.

  The upper surface of the shoulder member 12 is provided with a first coupler 13 that is an optical signal transmission means upward, and in the recessed space 3, a portion facing the first coupler 13 is provided downward. Similarly, a second coupler 14 that is also an optical signal transmission means is provided to indirectly transmit information between the first coupler 13 and the second coupler 14.

  An inner pot 15 and a control device 16 are provided in the rice cooker body 2. The control device 16 is electrically connected to the first coupler 13 through a lead wire, and the control device 16 and a microcomputer provided on the operation board 7 are connected via the first coupler 13 and the second coupler 14. Thus, information is indirectly transferred (for example, see Patent Document 1).

  In the conventional apparatus, since the operation board 7 and the like are formed in the integrated operation unit 4, the operation board 7 and the like are not adversely affected by the steam. However, since the above-mentioned conventional one uses the optical information transmission means of the first coupler 13 and the second coupler 14, the cost increases accordingly, and a process for attaching both the couplers 13, 14 and the like is also necessary. Therefore, there is a problem that the production cost increases.

  Further, the conventional device does not have a lid heater, but when the lid heater is provided on the lid body, there is a problem that the thermal influence on the operation substrate cannot be reduced.

Japanese Patent No. 2627028

  An object of the present invention is to provide a rice cooker that can prevent adverse effects of steam on the operation board and the like, reduce production costs, and reduce adverse effects on the operation board due to the heat of the lid heater. is there.

  In order to achieve the above object, the present invention adopts the following configuration.

  In the invention which concerns on Claim 1, it is a rice cooker which has a rice cooker main body and the cover body located above the said rice cooker main body, Comprising: The said rice cooker main body is heating which heats an inner pot and the said inner pot. And a control means for controlling the heating means, wherein the lid body has an operation part separate from the lid body in which the operation board is accommodated, and the lid body is a first for connection wiring. The control unit and the operation board are electrically connected by a connection wiring passing through the first through hole and the second through hole. And the first through hole and the second through hole are sealed with a seal member.

  In the invention according to claim 2, in addition to the structure of the invention of claim 1, the seal member is sandwiched between the lid and the operation portion, and the first through hole and the second through hole are sealed.

  According to a third aspect of the invention, in addition to the first and second aspects of the invention, the number of the sealing members is one, and the first through hole and the second through hole are sealed simultaneously.

  In the invention according to claim 4, in addition to the configuration of the invention of claims 1 to 3, the lid body has a lid heater, and a plurality of heat insulating layers, for example, between the lid heater and the operation portion, The structure which has a lid heater heat insulating material, an aluminum sheet, an air layer, etc.

  With these configurations, it is possible to prevent adverse effects of the steam on the operation board and the like, reduce the production cost, and reduce the adverse effects of the lid heater on the operation board.

  According to the first aspect of the present invention, the lid body is provided with an operation portion separate from the lid body in which the operation board is accommodated, and the lid body and the operation portion are provided with first and second through holes for connection wiring, respectively. The control means and the operation board are electrically connected by a connection wiring passing through the first through hole of the lid body and the second through hole of the operation part, and both the through holes are sealed with a seal member, so that Intrusion of steam can be prevented, and adverse effects of the steam on the operation substrate and the like can be prevented. In addition, since the control means and the operation board are electrically connected by connection wiring, a simple connection structure is required, so that the production cost can be reduced as compared with the conventional one.

  In the invention according to claim 2, the sealing member is sandwiched between the lid body and the operation portion, and the first through hole of the lid body and the second through hole of the operation portion are sealed, thereby achieving the effect of the invention of claim 1. In addition, the sealing structure can be simplified and the sealing function can be further enhanced.

  According to a third aspect of the present invention, in addition to the effects of the first and second aspects of the present invention, the single sealing member is used to simultaneously seal the first through hole of the lid and the second through hole of the operation portion. The structure of the seal member can be further simplified.

  The invention according to claim 4 is provided with a lid heater on the lid, and by providing a plurality of heat insulating layers between the lid heater and the operation portion, in addition to the effects of the inventions of claims 1 to 3, The adverse effect on the operation board or the like can be reduced.

Whole section of rice cooker FIG. 1 is an enlarged sectional view of the vicinity of the operation unit Perspective view before assembling the board box to the lid Perspective view of the operation panel Perspective view of seal member 3 is a cross-sectional view taken along the line AA in FIG. 3 before the seal member is sandwiched. 3 is a cross-sectional view taken along line AA in FIG. 3 after the seal member is sandwiched. Enlarged sectional view of the vicinity of the conventional operation unit

  1 shows an overall vertical cross-sectional view of the rice cooker, FIG. 2 shows an enlarged cross-sectional view in the vicinity of the operation unit of FIG. 1, FIG. 3 shows a perspective view before the substrate box is assembled to the lid, FIG. 5 is a perspective view of the operation panel and the seal member, and FIGS. 6 and 7 are cross-sectional views before and after holding the seal member. In addition, let the hinge mechanism 50 side of the rice cooker 20 be the back, and let the other side of the hinge mechanism 50 be the front.

  The whole rice cooker 20 is shown in FIG. The rice cooker 20 includes a rice cooker body 21 and a lid 40. The rice cooker main body 21 has an outer case 22 made of a steel plate case or an integrally molded product made of synthetic resin, and an inner pan 23 such as a metal pan or an earthen pan is detachably set in the outer case 22. In addition, an inner case 24 that is a protective frame along the shape of the inner pot 23 is provided outside the inner pot 23. The inner case 24 is made of a heat-resistant synthetic resin such as polyethylene terephthalate, for example, and a sensor insertion hole is provided in the center of the bottom portion for allowing the center sensor 25 made of a thermistor to face.

  The upper end of the inner case 24 is integrally coupled to the upper end of the outer case 22 via the shoulder member 26. A bottom work coil 27 and a side work coil 28 which are heating means for induction heating the inner pot 23 are provided on the bottom outer surface of the inner case 24 and the curved outer surface from the bottom to the side. The bottom work coil 27 and the side work coil 28 are provided concentrically around the bottom center of the inner case 24 at each position of the bottom and curved portions of the inner case 24.

  A synthetic resin coil support base 29 is provided outside the bottom work coil 27 and the side work coil 28, and the bottom work coil 29 is attached to the inner case 24 with screws or the like. 27 and the side work coil 28 are positioned and fixed at predetermined positions shown in the figure. A heat retaining heater 30 is provided on the outer peripheral side portion of the upper portion of the inner case 24.

  A dish-shaped bottom member 31 is attached to the lower end portion of the outer case 22 with a screw or the like, and the outer case 22 and the bottom member 31 form a container having an upper opening. A control board 32 is provided inside the rear of the outer case 22 so as to hang from the shoulder member 26.

  On the control board 32, electric parts such as a microcomputer and a power supply circuit are mounted as control means for controlling heating means including the bottom work coil 27, the side work coil 28, the heat retaining heater 30, and a lid heater 45 described later. Is done. Since some of these electrical components generate heat, a cooling fin 33 for cooling the heating elements and the like and a cooling fan 34 for radiating heat from the cooling fin 33 are provided in the vicinity of the control board 32. A cord winder 35 is provided on the rear side of the control board 32.

  Further, a locking mechanism 36 having a pressing portion 36a and a locking portion 36b is provided on the front side of the outer case 22, and the locking portion 36b is engaged with the lid body 40 by horizontally pressing the pressing portion 36a. Release the match.

  The lid 40 has an outer frame 41 and an inner frame 42. The outer frame 41 is a resin member that forms an outer peripheral surface, and a pressure adjusting unit 43 is provided at the center thereof. The inner frame 42 is a substantially ring-shaped member made of resin like the outer frame 41, and a metal heat radiating plate 44 is attached to the center of the inner frame 42. And the cover heater 45 is provided in the upper surface of the heat sink 44, and the inner pot 23 is heated from upper direction.

  The pressure regulating unit 43 has a steam passage 46 and a steam valve 47 inside, and regulates the steam pressure inside and discharges extra steam to the outside from the steam port 48. An inner lid 49 is detachably attached to the lower side of the heat radiating plate 44.

  A hinge mechanism 50 is provided on the rear portion of the lid 40 so as to extend from the rear portion to the shoulder member 26. The hinge mechanism 50 has a spring 51 or the like that always applies a force in the opening direction to the lid 40, and when the pressing portion 36 a is pressed and the locking portion 36 b releases the engagement with the lid 40, the spring 50 The lid 40 is opened by the force of 51.

  A concave groove portion 54 having a substantially rectangular shape in plan view is formed on the front upper surface of the outer frame 41 of the lid 40 as shown in FIG. In the recessed groove portion 54, three screw holes 55 (two are shown in the figure) and two first through holes 56 for connection wiring are provided in the vicinity of the outer end thereof. The first through hole 56 is formed in a shape slightly larger than the cross-sectional shape of the connection wiring 57 such as a lead wire or a flexible flat cable (FFC), and the connection wiring 57 is passed vertically as shown in the figure. . The white arrow in the figure indicates that the seal member 74 is disposed on the concave groove portion 54 and the substrate box 61 is disposed on the seal member 74.

  As shown in FIGS. 3 and 6, a first concave fitting portion 58 that is recessed downward is formed on the bottom surface 54 a (also the outer frame 41) of the concave groove portion 54, and the approximate center of the first concave fitting portion 58 is formed. A first through hole 56 is formed in the first. The first through-hole 56 is formed in a spoon shape composed of a rectangular large opening 56a and a rectangular small opening 56b, and a connector attached in advance to the tip of the connection wiring 57 is passed through the large opening 56a. For example, the openings may be the same size. The first through hole 56 may be one or plural.

  The first concave fitting portion 58 has a hollow space 58a, and a first inclined portion 58b communicating with the first through hole 56 is formed on the lower surface of the hollow space 58a. That is, the first through hole 56 has an upper portion inclined and a lower portion vertical, and has a cross-sectional shape as a whole.

  As shown in FIG. 2, a lid heater heat insulating material 52 and an aluminum sheet 53 are stacked between the bottom surface 54 a of the groove 54 and the heat radiating plate 44, and there is a gap above the aluminum sheet 53. The air layer 53a is formed, and the adverse effect of the heat of the lid heater 35 being transmitted to the operation board 64 in the operation unit 60 is reduced or prevented. Moreover, since the operation structure 60 is provided above the lid heater heat insulating material 52, the aluminum sheet 53, and the air layer 53a, it is possible to further reduce the adverse effect of the heat of the rice escaping upward.

  An operation unit 60 is disposed in the recessed groove portion 54. The operation unit 60 includes a substrate box 61 and an operation panel 70. As shown in FIG. 3, the operation unit 60 is a resin-made dish-like member having a substantially rectangular shape in plan view and opened upward, and has three screw bosses 62 and two second through holes 63 for connection wiring inside. A plurality of support pieces 65 for supporting the operation board 64 are provided, and nine engagement pieces 66 (four are shown in the figure) are provided on the outer peripheral side surface thereof.

  The three screw bosses 62 are opposed to the three screw holes 55 provided on the bottom surface 54 a of the concave groove portion 54, and screws are screwed together from the back side of the bottom surface 54 a, so that the board box 61 is inserted into the concave groove portion 54. Fix in a sandwiched form.

  The operation board 64 is attached to the support piece 65 so as to be slightly inclined forward. A liquid crystal panel 67, various switch buttons 68, a microcomputer (not shown), a battery, and the like are mounted on the operation board 64. The operation board 64 only needs to be mounted with at least the liquid crystal panel 67 and the switch button 68.

  As shown in FIGS. 3 and 6, the bottom of the substrate box 61 is formed with a second concave fitting portion 61 a that is recessed downward, and a second through hole 63 is formed at the approximate center of the second concave fitting portion 61 a. Is done. The second through-hole 63 is formed in the same shape as the first through-hole 56, that is, in the shape of a spoon consisting of a rectangular large opening 63 a and a rectangular small opening 63 b, and is provided on the bottom surface 54 a of the groove 54. The connection wiring 57 that is opposed to each of the two first through holes 56 and is inserted from the bottom surface 54 a side is drawn into the board box 61 as shown in FIG. 3. One end of the drawn connection wiring 57 is connected to a connector (not shown) of the control board 32 which is a control means, and the other end is connected to a connector (not shown) of the operation board 64 to operate with the control board 32 which is a control means. The board 64 is electrically connected to exchange information.

  As shown in FIG. 6, a second inclined portion 61 c that communicates with the second through hole 63 is formed on the lower end surface 61 b of the second recessed fitting portion 61 a. That is, the second through-hole 63 is inclined at its lower part, vertical at its upper part, and has a cross-sectionally inverted shape as a whole.

  At the upper end of the substrate box 61, an upper end groove portion 69 is formed over the entire circumference. A substantially unillustrated packing is inserted into the upper end groove portion 69, and the operation panel 70 is fitted from above. One transparent window 70a and a plurality of button windows 70b are provided on the upper surface of the operation panel 70, and nine engagement grooves 70c (four are shown in the figure) are provided on the side surfaces thereof.

  The transparent window 70a faces the liquid crystal panel 67 so that the display on the liquid crystal panel 67 can be visually recognized. The button window 70b faces the various switch buttons 68 and can press the various switch buttons 68. To. The various switch buttons 68 are composed of, for example, a rice cooker switch, a heat retention switch, a menu switch for setting various menus such as white rice, quick cooking, and non-washed rice, a timer switch for setting the time, a cancel switch for canceling the setting, and the like. Then, the inner pot 23 is heated by Joule heat caused by eddy currents induced by the bottom work coil 27 and the side work coil 28.

  The nine engaging grooves 70c are opposed to the nine engaging pieces 66 of the board box 61. A packing (not shown) is placed on the upper end groove 69 of the board box 61, and the operation panel 70 is placed thereon. The operation panel 70 is pushed downward. Then, the nine engaging pieces 66 of the board box 61 are fitted into the nine engaging grooves 70 c of the operation panel 70, and the inside of the board box 61 is sealed except for the second through hole 63.

  FIG. 5 shows a perspective view of the seal member 74. The seal member 74 is made of silicon and formed integrally in a vertically symmetrical manner. The sealing member 74 is formed with a central flat plate portion 75 having a rectangular shape in plan view at the center thereof. The upper surface of the central flat plate portion 75 rises one step higher, and has a narrow portion 76a and a wide portion 76b. A first terrace portion 76 having a spoon-like shape is formed, and the upper surface of the first terrace portion 76 is smaller than the first terrace portion 76 but has the same shape, that is, is raised one step higher than the first terrace portion 76, and a narrow portion. A second terrace portion 77 having a spoon shape as a whole is formed, having 77a and a wide portion 77b. And the 1st terrace part 76 and the 2nd terrace part 77 of the same shape as the thing of an upper surface are formed also in the lower surface of the center flat plate part 75, Furthermore, the 2nd terrace below from the upper end of the upper 2nd terrace part 77 is further formed. A rectangular opening 78 that is elongated in plan view is formed at the lower end of the portion 77. The connection wiring 57 is passed through the opening 78.

  The attachment of the seal member 74 and the operation unit 60 will be described with reference to FIGS. First, the seal member 74 is inserted into the hollow space 58 a of the first concave fitting portion 58 of the concave groove portion 54. The size in plan view of the central flat plate portion 75 of the seal member 74 is smaller than the size in plan view of the hollow space 58a, and the size in plan view of the lower first terrace portion 76 is substantially the same as that of the first inclined portion 58b. The size in plan view of the lower second terrace portion 77 is slightly smaller than or the same as the size in plan view of the lower second terrace portion 77, which is the same as the size in plan view formed in the intermediate portion.

  Therefore, the central flat plate portion 75 of the seal member 74 is fitted into the hollow space 58a, and the corner portion of the lower first terrace portion 76 is in contact with the substantially middle portion of the first inclined portion 58b, and the lower first The second terrace portion 77 is fitted into the first through-hole 56 by approximately half. In that case, as shown in FIG. 6, the connection wiring 57 is passed through the first through hole 56 and the opening 78 of the seal member 74.

  Next, the substrate box 61 is placed from above the seal member 74. The size in plan view of the central flat plate portion 75 of the seal member 74 is substantially the same as the size in plan view of the lower end surface 61b of the second recessed fitting portion 61a, and the size in plan view of the upper first terrace portion 76 is The size in plan view of the upper second terrace portion 77 is slightly smaller than the size in plan view of the second through hole 63, which is the same as the size in plan view formed at the substantially middle portion of the second inclined portion 61c. Or the same.

  Therefore, the central flat plate portion 75 of the seal member 74 is located below the lower end surface 61b, the corner portion of the upper first terrace portion 76 abuts on the substantially middle portion of the first inclined portion 58b, and the upper second portion. The terrace portion 77 is fitted into the second through hole 63 by about half. In that case, the connection wiring 57 is passed through the second through-hole 63 and drawn upward.

  Thereafter, a force is applied from above the substrate box 61 to push the substrate box 61 into the groove 54. Then, the central flat plate portion 75 of the seal member 74 is pressed and sandwiched between the lower end surface 61b of the substrate box 61 and the bottom surface of the hollow space 58a of the first concave fitting portion 58 in the direction indicated by the arrow (1) in FIG. The corners of the upper and lower first terrace portions 76 of the seal member 74 are pressed and sandwiched between the first inclined portion 58b and the second inclined portion 61c in the oblique direction indicated by the arrow (2).

  When the first inclined portion 58b and the second inclined portion 61c press the corners of the upper and lower first terrace portions 76 of the seal member 74 in the oblique direction indicated by the arrow (2), the seal member 74 is moved in the direction of the arrow (3). The opening 78 is pushed in the closing direction, and as a result, the space between the opening 78 and the connection wiring 57 is sealed. And the corner | angular part of the upper and lower 1st terrace part 76 is pushed by the 1st inclination part 58b and the 2nd inclination part 61c, becomes a shape along the 1st inclination part 58b and the 2nd inclination part 61c, and the sealing member 74 of FIG. The lower second terrace portion 77 is fitted into the first through hole 56, and the upper second terrace portion 77 is fitted into the second through hole 63, and the first through hole 56 and the second through hole 63 are inserted. 7 and the opening 78 are simultaneously sealed by the seal member 74, and the state shown in FIG. 7 is obtained.

  Thereafter, screws are inserted into the three screw holes 55 from the back side of the outer frame 41 (the side opposite to the outer frame 41 in FIG. 3), and each is screwed into the three screw bosses 62 of the board box 61. The substrate box 61 is fixed to the recessed groove portion 54 in the state shown in FIG.

  Thereafter, necessary parts such as the operation board 64 are mounted in the board box 61, the operation board 64 and the connection wiring 57 are electrically connected via a connector, and packing is attached to the upper end groove portion 69 of the board box 61. The operation panel 70 is attached. The operation panel 70 is attached by pressing the operation panel 70 from above the substrate box 61 and engaging the engagement piece 66 of the substrate box 61 in the engagement groove 70c of the operation panel 70. The inside of the substrate box 61 is sealed by engaging the engaging piece 66 in 70c.

  After installation, as shown by arrows (4) and (5) in FIG. 7, even if water or steam tries to enter the operation unit 60, the first through hole 56 and the second through hole are sealed by the seal member 74. Since 63 and the opening 78 of the seal member 74 are sealed, water or steam does not enter the operation unit 60.

  In addition, since the temperature inside the operation unit 60 is preferred by a pest such as a cockroach, if the pest enters the operation unit 60, it may cause a malfunction. Therefore, it is necessary to take measures with a pest repellent. Such a problem can be eliminated by sealing.

  To replace the battery or the operation board 64 in the operation unit 60, three screws are removed from the back side of the outer frame 41, the operation unit 60 is removed from the groove 54, and the engagement groove 70c of the operation panel 70 and the board box are removed. It is performed by releasing the engagement with the engagement piece 66 of 61. For this reason, it is possible to replace the operation unit at a low price as compared with the conventional one that needs to replace the entire operation unit.

  As described above, the control board 32 in the rice cooker body 21 and the operation board 64 of the lid body 40 are connected by the connection wiring 57, and the production cost can be reduced. Further, when the board box 61 is mounted in the groove 54, the first through hole 56 and the second through hole through which the connection wiring 57 is passed by sandwiching one seal member 74 between the groove 54 and the board box 61. Since 63 and the opening 78 of the seal member 74 can be sealed at the same time, the number of parts and the production process can be reduced, and further the production cost can be reduced.

  Further, in the lid 40, the operation unit 60 and the steam passage 46 are partitioned by having an air layer 41a therebetween, so that it is difficult for steam and rice balls to be directly applied to the operation unit 60. The heat of steam can also be made difficult to transfer.

  The present invention is not limited to the configuration of the embodiment described above, and can be appropriately changed in design without departing from the gist of the invention. For example, the heating means may be a heater, and the inner pot is made of metal. It may be made of any material.

DESCRIPTION OF SYMBOLS 20 ... Rice cooker 21 ... Rice cooker main body 22 ... Outer case 23 ... Inner pan 24 ... Inner case 25 ... Center sensor 26 ... Shoulder member 27 ... Bottom work coil 28 ... Side work coil 29 ... Coil support stand 30 ... Insulation heater 31 ... Bottom member 32 ... Control board 33 ... Cooling fin 34 ... Cooling fan 35 ... Cord winder 36 ... Locking mechanism 36a ... Pressing part 36b ... Locking part 40 ... Cover body 41 ... Outer frame 41a ... Air layer 42 ... Inner frame DESCRIPTION OF SYMBOLS 43 ... Pressure regulation unit 44 ... Radiating plate 45 ... Cover heater 46 ... Steam passage 47 ... Steam valve 48 ... Steam port 49 ... Inner cover 50 ... Hinge mechanism 51 ... Spring 52 ... Cover heater insulation 53 ... Aluminum sheet 53a ... Air layer 54 ... concave groove portion 54a ... bottom surface 55 ... screw hole 56 ... first through hole 56a ... large opening 56b ... small opening 57 ... connection wiring 58 ... first concave fitting portion 58a ... hollow space 8b ... 1st inclination part 60 ... Operation part 61 ... Substrate box 61a ... 2nd recessed fitting part 61b ... Lower end surface 61c ... 2nd inclination part 62 ... Screw boss 63 ... 2nd through-hole 63a ... Large opening 63b ... Small opening 64 ... Operation board 65 ... support piece 66 ... engagement piece 67 ... liquid crystal panel 68 ... switch button 68 ... seed switch button 69 ... upper end groove portion 70 ... operation panel 70a ... transparent window 70b ... button window 70c ... engagement groove 74 ... seal member 75 ... Central flat plate part 76 ... First terrace part 76a ... Narrow part 76b ... Wide part 77 ... Second terrace part 77a ... Narrow part 77b ... Wide part 78 ... Opening

Claims (4)

A rice cooker having a rice cooker body and a lid located above the rice cooker body,
The rice cooker body has an inner pot, heating means for heating the inner pot, and control means for controlling the heating means,
The lid body has an operation part separate from the lid body in which the operation board is accommodated.
The lid body has a first through hole for connection wiring,
The operation portion has a second through hole for connection wiring,
The control means and the operation board are electrically connected by connection wiring passing through the first through hole and the second through hole,
The first through hole and the second through hole are sealed with a sealing member.   2. The rice cooker according to claim 1, wherein the sealing member is sandwiched between the lid body and the operation unit, and seals the first through hole and the second through hole.   3. The rice cooker according to claim 1, wherein the number of the sealing members is one, and the first through hole and the second through hole are sealed at the same time.   4. The rice cooker according to claim 1, wherein the lid includes a lid heater, and a plurality of heat insulation layers are provided between the lid heater and the operation unit. 5. vessel.

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