JP3582490B2 - rice cooker - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker, and more particularly to a rice cooker having an electrical safety mechanism for connecting a lid heating source and a power supply.
[0002]
[Prior art]
Conventionally, rice cookers in which the lid is detachable from the rice cooker main body so that the lid can be washed with the lid removed are already known, but in the case of this type of rice cooker, the shoulder of the rice cooker main body is known. A shoulder heater is provided in the section, a heat radiating plate provided on the lower surface of the lid is heated by heat conduction from the shoulder heater, and heating is also performed from above at the time of cooking rice, thereby increasing heating efficiency, and preventing spills etc. at the time of cooking rice. I try to prevent it.
[0003]
In the case of the above structure, it is necessary to contact the heat sink constituting the lower surface of the lid with the shoulder heater of the rice cooker main body, so there is a problem that the outer diameter of the heat sink becomes large, and heat conduction from the shoulder heater causes Because the heat sink is to be heated, there is a problem that sufficient heating power cannot be obtained, and it is difficult to control the heating power. A rice cooker of a type in which is heated by a lid heater comprising an electric heater as a heating means provided in the lid body, an electromagnetic induction coil and the like is already known.
[0004]
However, in the case of the rice cooker provided with the lid heater as described above, since the structure in which the heat radiating plate is in contact with the shoulder heater is not required, the lid can be made compact, but the rice cooker is used for supplying power to the lid heater. It was necessary to connect the power connection part on the side of the cooking appliance and the lid heater with the lead wire, and there was a problem that the lid could not be attached to and detached from the rice cooker main body to make it a structure that could be washed in a round. In order to solve this problem, the applicant has already applied for an electrical connection structure that enables a lid body having a lid heater and a rice cooker body to be mechanically attached and detached and also electrically connected at the same time.
[0005]
That is, in order to enable electrical connection between the lid heater disposed on the inner wall surface of the lid and the detachable rice cooker main body, the connection terminal protrudes into a concave portion of the lid where the hinge member of the rice cooker main body is inserted. A hole is provided in the hinge member corresponding to the concave portion of the lid so that the connection terminal attached to the lid can be inserted, and the connection terminal can be fitted inside the hinge member corresponding to the hole. When the lid is attached to the rice cooker body, the connection terminal on the lid is fitted to the connection contact on the hinge member, The electrical connection is made almost simultaneously with the mechanical attachment and detachment.
[0006]
However, in such an electrical connection structure, when the lid is removed from the rice cooker body and the electrical connection is not made, the connection terminal protruding toward the lid side is attached by means such as interposing a seal in the attachment portion. Even if water is directly applied to the lid and the lid is washed, no particular problem occurs, but the hinge member of the rice cooker has a hole into which the connection terminal is inserted, and even if the rice cooker is washed with water. Even if not, foreign matter such as dust, rice grains, and water droplets, etc., may enter the hole, and when the lid is inserted into the hinge member, there is a problem that poor insertion or poor electrical connection may occur. If the child accidentally inserts a conductive metal piece through this hole while removing the body, it cannot be said that there will be no electric shock.
[0007]
[Problems to be solved by the invention]
An object of the present invention is to provide a rice cooker that solves the above problem by adopting a means for closing a hole provided on a hinge member side into which a connection terminal is inserted when a lid is removed from a rice cooker main body. is there.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention employs the following configuration.
[0009]
In the invention according to claim 1, a rice cooker main body in which an inner pan can be set, a lid detachably attached to the rice cooker main body via a hinge member, and a lower surface of the lid are A lid heating source to be heated, a connection terminal provided on the lid for supplying power to the lid heating source, and a connection terminal provided in the hinge member facing the hole in which the connection terminal can be inserted; A connection contact for energizing a power source, a concave portion for accommodating the hinge member is provided at a rear portion of the lid , and a convex portion is provided on a side portion of the concave portion, and the lid is inserted into the hinge member. A rice cooker in which the connection terminal is connected to the connection contact through the hole when the terminal is put on, and a hole opening / closing means is provided in the hole of the hinge member, the hole being opened and closed in conjunction with the attachment / detachment of the lid. The hole opening / closing means includes a projection projecting outward from a side of the hinge member. Configured, opening and closing of the hole closing means, the contact between the convex portion provided on the side of the lid and the projections are performed in conjunction with the non-contact.
[0010]
With this configuration, when the lid is inserted into the hinge member, the hole opening / closing means opens the hole, so that the insertion of the connection terminal into the hole and the joining with the connection contact are performed without any problem, and the lid is closed. When the hinge member is removed from the hinge member, the hole of the hinge member is closed by the hole opening / closing means. Therefore, foreign matter such as dust, rice grains, and water droplets enter the hole, and when the lid is inserted into the hinge member, it is not inserted. No poor connection or poor electrical connection occurs.
[0011]
In addition, the opening and closing operation of the hole opening and closing means can be performed reliably and smoothly by a simple structure, and the existing structure can be used as it is.
[0012]
Further, by performing the opening / closing operation of the hole opening / closing means in conjunction with the connection terminal, the structure of the hole opening / closing means can be simplified and its reliability can be improved.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
(First Embodiment)
1 to 4 show a first embodiment of the present invention. FIG. 1 is an overall sectional view of a rice cooker, and FIG. 2 is an enlarged perspective view of a main part with a lid and a hinge member of the rice cooker main body removed. FIG. 3 is a sectional view showing the set and non-set states of the connection terminal and the connection contact simultaneously, and FIG. 4 is a perspective view of the hole opening / closing means.
[0014]
The rice cooker 1 includes a rice cooker main body 2 and a lid 3, and the rice cooker main body 2 is a synthetic resin bottomed cylindrical inner case 5 in which the inner pan 4 can be arbitrarily set, and an outer casing. It is formed of an outer case 6 made of a synthetic resin, and the two cases 5 and 6 are joined together by means such as forced fitting. On the outer peripheral surface of the inner case 5, a bottom coil 7 and a corner coil 8 each composed of a work coil are disposed at a bottom portion and a corner portion from the bottom portion to the side surface, respectively. And heat retention control is performed.
[0015]
The coils 7 and 8 are arranged on a coil base 9, and a through-hole is provided in the center of the coil base 9 so as to penetrate in a vertical direction. A center sensor 10 in which a reed switch for detecting the state and a thermistor for detecting the temperature of the inner pan 4 are provided. The center sensor 10 has a built-in spring. When the inner pot 4 is not set, the tip projects upward from the bottom of the inner case 5. When the inner pot 4 is set, the inner pot 4 is set. When the inner pot 4 is set, the safety device is not activated unless the inner pan 4 is set.
[0016]
The inner pan 4 is formed of an iron-based metal such as stainless steel capable of self-heating by eddy currents induced therein by the work coils 7 and 8, and has the same shape as the inner case 5. The center sensor 10 is turned on by setting the inner pot 4 in the inner case 5 so that the coils 7 and 8 can be energized, and the rice cooker switch is turned on. Then, the inner pot 4 is heated by the Joule heat caused by the eddy current, and the contents such as cooked rice and the like put therein are uniformly heated, and the rice is cooked efficiently.
[0017]
On the other hand, the lid 3 is composed of a lid plate 12 made of synthetic resin and a radiating plate 13 made of a good heat conductor fixed to the lid plate 12 by screws 22 so as to form the lower surface of the lid 3. In addition, a hollow portion 15 filled with a heat insulating material 16 is formed between the cover plate 12 and the heat radiating plate 13, and an electric heater that generates resistance heat when energized is formed on the upper surface of the heat radiating plate 13. A lid heater 17 is fixed by a mounting plate 18 and heats the heat radiating plate 13 to prevent spills and dew. The heating method using the lid heater 17 may be the above-described heating method, an IH method, a high-frequency method, or the like.
[0018]
A cylindrical opening 19 is integrally formed with the lid 12 at the center of the lid plate 12, and a cylindrical body 21 accommodating the ball valve 20 therein is disposed in the opening 19. At the same time, the cylindrical body 21 is in contact with the inner peripheral surface of a ring-shaped seal member 23 made of a synthetic resin which is simultaneously attached when the heat radiating plate 13 is attached to the cover plate 12 with the screw 22. It is detachable from the lid plate 12. A steam port 24 is provided on the upper surface, and when the steam pressure in the inner pan 4 becomes equal to or higher than a predetermined value, the steam is pushed up the ball valve 20 and discharged from the steam port 24 to the atmosphere. A seal packing 25 is sandwiched on the outer peripheral edge of the heat radiating plate 13, and the seal packing 25 contacts the upper edge of the inner pot 4 when the lid is closed, and dissipates heat in the inner pot 4. Is preventing.
[0019]
A hinge member 27 rotatably pivoted by a hinge pin 26 is provided at an upper portion of a rear end portion of the rice cooker main body 2. As shown in FIGS. 2 and 3, the hinge member 27 includes a substantially U-shaped hinge arm 28 in a plan view, and a generally U-shaped hinge cover 29 covering the lower surface of the hinge arm 28. The hinge arm 28 is formed as an integrally formed body having an upper plate 28a, left and right side plates 28b, 28b, and a front plate 28c, and is internally formed by these plates 28a, 28b, 28b, 28c and the hinge cover 29. The hinge member 27 is urged in the opening direction by a spring (not shown) housed therein.
[0020]
A substantially rectangular recess 31 is formed at the rear of the cover plate 12 of the cover 3, that is, at the hinge member 27 side. The recess 31 is open at the rear side with which the hinge member 27 can be engaged. A bottom wall 31a is formed at a lower portion thereof, which projects forward and a hinge cover 29 of the hinge member 27 is formed at an upper portion thereof when the hinge member 27 is inserted. A back plate 31c is formed integrally with the cover plate 12 on the recessed surface, and a storage space for the hinge member 27 is formed by the bottom wall 31a, the side plates 31b, 31b, and the back plate 31c. are doing. Also, projections 31d, 31d are formed on both side plates 31b, 31b of the concave portion 31, and projections 28d, 28d are formed on both side plates 28b, 28b of the hinge arm 28. When the hinge member 27 is set to 31, the protrusions 28 d formed on both side plates 28 b of the hinge arm 28 are locked to the protrusions 31 d formed on both side plates 31 b of the recess 31. It is done by doing.
[0021]
As shown in FIGS. 1 to 3, two connection terminals 33, 33 protrude via a seal packing 32 and are attached to the back plate 31 c forming the recess 31 in a watertight manner. Even if the lid 3 is washed, water does not permeate into the lid 3 from the mounting portions of the two connection terminals 33, 33. Each connection terminal 33 is connected to the lid heater 17 via a lead wire 34.
[0022]
The front plate 28c of the hinge arm 28 facing the two connection terminals 33, 33 is provided with two holes 35, 35 into which the connection terminals 33, 33 can be inserted. , 35, two connection contacts 36, 36 which can be fitted with the connection terminals 33, 33 are arranged in the space 30 in the hinge member 27, and the connection contacts 36, 36 are respectively Are connected to a power source (not shown) via the lead wires 37, 37, and the lid heater 17 is energized by connecting the connection terminals 33, 33 to the connection contacts 36, 36.
[0023]
The space 30 in the hinge member 27 is provided with a partition wall 38 that partitions the space 30 vertically as viewed in FIG. 3, and a space 30a is formed between the partition wall 38 and the front plate 28c. In addition, a hole opening / closing member 40 as a hole opening / closing means is arranged in the space 30a. The hole opening / closing member 40 is made of synthetic resin and has a substantially U-shaped cross section. As shown in FIG. 4, a cylindrical projection 40a is provided on one side and a concave groove is provided on the other side. 40b, and a hole 40d having substantially the same diameter as the hole 35 provided in the front plate 28c of the hinge arm 28 is provided on the front wall thereof. The hole opening / closing members 40 are arranged side by side in the space 30a such that two concave grooves 40b are opposed to each other in the lateral direction, and one spring is provided between the two hole opening / closing members 40. The two hole opening / closing members 40 are constantly pressed in the direction of the side plate 28b of the hinge arm 28 by the action of the spring 41.
[0024]
The side plate 28b of the hinge arm 28 is provided with a hole 42 having a diameter larger than the outer diameter of a cylindrical projection 40a formed on one side of the hole opening / closing member 40, as shown in the center of FIG. In a state before the hinge member 27 is set on the lid 3 shown on the left side of the line, the hole opening / closing member 40 is pressed right and left by the spring 41, and the projection 40a of the hole opening / closing member 40 is inserted into the hole 42. The hole 40d provided in the front wall of the hole opening / closing member 40 is incoincident with the hole 35 provided in the front plate 28c of the hinge arm 28, and the front plate 28c of the hinge arm 28 The hole 35 provided is closed to prevent foreign matter from entering through the hole 35.
[0025]
Next, a state in which the hinge member 27 is set on the lid 3 shown on the right side of the center line in FIG. 3 will be described. When setting, the projections 28d, 28d formed on both side plates 28b, 28b of the hinge arm 28 as described above. (See FIG. 2) by engaging projections 31d formed on both side plates 31b of the recess 31 with cylindrical projections provided on one side of the hole opening / closing member 40. The mounting position of the portion 40a is located at a position substantially the same as the height of the projections 31d, 31d formed on the side plates 31b, 31b of the concave portion 31. When the hinge member 27 is set on the lid 3, The tip of the projection 40a of the hole opening / closing member 40 moves while abutting on the tips of the projections 31d of the recess 31, and as a result, the hinge member 27 is secured to the lid 3. At this time, the tip of the projection 31d of the concave portion 31 is pressed while pressing the tip of the projection 40a of the hole opening / closing member 40, so that the two hole opening / closing members 40 are pushed toward the center side. That is, the hole 40d provided in the front wall of the hole opening / closing member 40 coincides with the hole 35 provided in the front plate 28c of the hinge arm 28.
[0026]
As described above, when the hinge member 27 is set on the lid 3, the hole 40d provided on the front wall of the hole opening / closing member 40 coincides with the hole 35 provided on the front plate 28c of the hinge arm 28. Therefore, the two connection terminals 33, 33 protruding from the back plate 31 c of the recess 31 can enter the space 30 formed in the hinge member 27, and are disposed in the space 30 after the penetration. To the connection contact 36 to be connected. Of course, when the hole 40d provided in the front wall of the hole opening / closing member 40 and the hole 35 provided in the front plate 28c of the hinge arm 28 coincide with each other, the connection terminals 33, 33 on the lid 3 side are connected to the hinge arm. Needless to say, it is before entering the hole 35 provided in the front plate 28c.
[0027]
As shown in FIGS. 1 and 2, the upper ends of the side plates 31 b, 31 b and the back plate 31 c of the concave portion 31 of the cover body 3 are higher than the upper surface of the cover plate 12 and partially above the hinge member 27. An overhanging portion 43 like a kind of bulge is formed integrally with the lid 3, and when the water spills out, the squirt blown out from the steam port 24 falls into the concave portion 31 via the upper surface of the lid plate 12. Is preventing that.
[0028]
(Second embodiment)
FIG. 5 shows another embodiment of the hole opening / closing means, in which a rotary shaft type is used in place of the slide type in the first embodiment, and is formed at the rear of the lid plate 3. Since the shapes of the concave portion 31 and the hinge member 27 are the same as those of the first embodiment, the details are omitted.
[0029]
A hole opening / closing member 50 as a hole opening / closing means is disposed in the space 30 in the hinge member 27 as shown in FIG. The hole opening / closing member 50 is composed of two members made of synthetic resin, one of which is disposed substantially parallel to the side plate 28b of the hinge arm 28, and has a columnar projection 53 on its lower outer surface as viewed in FIG. A flat plate 51 is fixed and a flat plate 52 is disposed in parallel with the front plate 28c of the hinge arm 28. The flat plates 51, 52 are rotated at their ends by a connecting member 54 comprising a bearing and a shaft. They are freely connected.
[0030]
A shaft 55 is integrally attached to the flat plate 51 on the outer surface of the flat plate 51 in the vicinity where the columnar projection 53 is fixed, as viewed in FIG. The flat plate 51 is pivotally supported between the hinge arm 28 and the hinge cover 29, and is rotatable about the shaft 55 in the space 30. Further, a spring 56 on the shaft 55 has one end thereof abutting on the outer surface of the flat plate 51, the other end abutting on the side plate 28 b, and the connecting member 54 side of the flat plate 51 being constantly in the center of the space 30. It is mounted in a form that biases in the direction.
[0031]
The side plate 28b of the hinge arm 28 is provided with a hole 42 having a diameter larger than the outer diameter of the cylindrical projection 53 formed on one side of the hole opening / closing member 50. In the state before the hinge member 27 is set on the lid 3 shown on the left side with respect to the line, the flat plate 51 of the hole opening / closing member 50 has its leading end connected to the connecting member 54 at the center by the action of the spring 56. 5, the flat plate 52 connected to the connecting member 54 is moved in the center direction parallel to the front plate 28c, and the center end of the flat plate 52 is inserted into the space 30 in the hinge member 27 in the vertical direction as viewed in FIG. Is moved until it comes into contact with the vertical wall 28e formed at the bottom. As a result, the flat plate 52 closes the hole 35 provided in the front plate 28c of the hinge arm 28, and prevents foreign matter from entering through the hole 35. On the other hand, the projection 53 attached to the flat plate 51 on the side opposite to the connecting member 54 penetrates into the hole 42 provided in the side plate 28b of the hinge arm 28, and the tip protrudes outside the outer surface of the side plate 28b. .
[0032]
Next, a state in which the hinge member 27 is set on the lid 3 shown on the right side with respect to the center line in FIG. 5 will be described. At the time of setting, as described in the first embodiment, both side plates 28b of the hinge arm 28, The protrusions 28d, 28d (see FIG. 2) formed on the hole opening / closing member 50 are formed by engaging the protrusions 28d, 28d (see FIG. 2) with the protrusions 31d, 31d formed on both side plates 31b, 31b of the recess 31. The protrusions 53 are provided at substantially the same height as the protrusions 31 d formed on both side plates 31 b of the recess 31, and the hinge member 27 is set on the lid 3. Sometimes, the tip of the projection 53 of the hole opening / closing member 50 moves while abutting on the tips of the projections 31 d of the recess 31, and as a result, the hinge member 27 is attached to the lid 3. When the setting is performed, the tip of the projection 31d of the recess 31 is pressed while pressing the tip of the projection 53 of the hole opening / closing member 50. Therefore, the two hole opening / closing members 50 are on the right side around the shaft 55. The hole opening / closing member 50 rotates clockwise, and the hole opening / closing member 50 on the left side rotates counterclockwise.
[0033]
As a result, the flat plate 52 connected to the connecting member 54 is in the direction of the side plate 28c of the hinge arm 28, and its inner end is also closer to the side plate 28c than the hole 35 of the front plate 28c of the hinge arm 28. The hole 35 provided in the front plate 28c of the hinge arm 28 is opened, and the two connection terminals 33, 33 projecting from the back plate 31c of the recess 31 are formed in the hinge member 27. The space 30 can be penetrated and connected to the connection contacts 36 provided in the space 30 after the space 30 is penetrated.
[0034]
(Third embodiment)
FIGS. 6 and 7 show still another embodiment of the hole opening / closing means, which is different from the sliding type according to the first embodiment and the rotary shaft type according to the second embodiment, in which a cut groove packing type is used. In this embodiment, the shapes of the concave portion 31 and the hinge member 27 formed in the rear portion of the lid 3 are also the same as those of the first embodiment, and thus the details are omitted.
[0035]
That is, as shown in FIG. 6, two connection terminals 33, 33 protrude through a seal packing 32 on a back plate 31 c forming a concave portion 31 at the rear part of the lid 3, and are attached in a watertight manner. Even if the lid 3 is washed, water does not enter the lid 3 from the mounting portions of the two connection terminals 33, 33. Each connection terminal 33 is connected to the lid heater 17 via a lead wire 34.
[0036]
And, on the front plate 28c of the hinge arm 28 facing the two connection terminals 33, 33, two cut grooved packings 60 into which the connection terminals 33, 33 can be inserted are arranged to face each other. In the space 30 in the hinge member 27 facing the packing 60, two connection contacts 36, 36 that can be fitted with the connection terminals 33, 33 are arranged, and the connection contacts 36, 36 are connected to respective leads. The power is supplied to the lid heater 17 by connecting the connection terminals 33, 33 to the connection contacts 36, 36 via wires 37, 37.
[0037]
The grooved packing 60 includes a base end portion 60a and a tip end portion 60b, and the base end portion 60a is formed in a hole 35 having a radial projection 35a formed on a front plate 28c of the hinge arm 28, and has a central portion. The groove 60c formed in the portion is fitted to the projection 35a in the hole 35 so as to be locked. The distal end portion 60b is tapered toward the space 30 of the hinge arm 28, is always closed at the distal end portion, is opened when the connection terminal 33 enters, and enters the connection terminal 33 without difficulty. The cut groove 60d is formed.
[0038]
Therefore, in the state before the hinge member 27 is set on the lid 3 as shown in FIG. 6, since the cut groove 60d of the packing 60 is closed, no foreign matter enters therefrom. When the hinge member 27 is set on the lid 3, the connection terminal 33 can easily penetrate and push the kerf 60d while spreading, so that the electrical connection is performed without any problem. At this time, the gap between the cut grooves 60d is made slightly larger than the size of the connection terminal 33 inserted, thereby reducing the invasion of foreign matter from the cut groove 60 even when the connection terminal 33 is inserted. Can be.
[0039]
(Other embodiments)
Instead of the hole opening / closing means as described above, from the upper part of the front surface of the hole 35 provided in the front plate 28c of the hinge arm 28, when the connection terminal 33 enters, it spreads right and left, and when the cover is removed, it is straight with the pin. Even if only a member such as broom hair which is in a state is hung down, the same operation and effect as the hole opening / closing means can be obtained, and the structure of the hole opening / closing means can be further simplified by using such means. Can be.
[0040]
The invention of the present application is not limited to the configuration of the above embodiment, and it is needless to say that the design can be changed as appropriate without departing from the gist of the invention.
[0041]
【The invention's effect】
In the invention according to claim 1, a rice cooker main body in which an inner pot can be set, a lid detachably attached to the rice cooker main body via a hinge member, and a lower surface of the lid are A lid heating source to be heated, a connection terminal provided on the lid for supplying power to the lid heating source, and a connection terminal provided in the hinge member facing the hole in which the connection terminal can be inserted; A connection contact for energizing a power source, a concave portion for accommodating the hinge member is provided at a rear portion of the lid , and a convex portion is provided on a side portion of the concave portion, and the lid is inserted into the hinge member. A rice cooker in which the connection terminal is connected to the connection contact through the hole when the terminal is put on, and a hole opening / closing means is provided in the hole of the hinge member, the hole being opened and closed in conjunction with the attachment / detachment of the lid. The hole opening / closing means includes a projection projecting outward from a side of the hinge member. And, opening and closing of the hole closing means, the contact between the convex portion provided on the side of the lid and the projections, by being performed in conjunction with the non-contact, remove the lid from the hinge member At this time, the hole of the hinge member is closed by the hole opening / closing means, so that foreign matter such as dust, rice grains, and further water droplets do not enter the hole, and no poor insertion or poor electrical connection occurs. At the same time, when the lid is removed, the child does not have to insert a metal piece held in the hand due to mischief into the hole, and electric shock does not occur, greatly improving safety. Further, the structure is simpler, the amount of electric current can be reduced, and the cost can be reduced, as compared with the conventional method of heating the radiator plate using the shoulder heater.
[0042]
Further , since the hole opening / closing means can be formed as a simple structure, the cost can be reduced, and the operation can be performed reliably and smoothly, so that the reliability is improved. Further, since the existing structure can be used as it is, it contributes to lower cost.
[0043]
Further , by performing the opening / closing operation of the hole opening / closing means in conjunction with the connection terminal, the structure of the hole opening / closing means can be simplified, the cost can be reduced, and the safety and reliability thereof are further improved. be able to.
[Brief description of the drawings]
FIG. 1 is an overall sectional view of a rice cooker according to the present invention.
FIG. 2 is an enlarged perspective view of a main part in which a lid of the present invention and a hinge member of a rice cooker main body are removed.
FIG. 3 is a cross-sectional view showing a set state (right view) and a non-set state (left view) of a connection terminal and a connection contact of the present invention at the same time.
FIG. 4 is a perspective view of the hole opening / closing means of the present invention.
FIG. 5 is another cross-sectional view showing a set state (right view) and a non-set state (left view) of the connection terminal and the connection contact of the present invention at the same time.
FIG. 6 is a sectional view of still another hole opening / closing means according to the present invention.
FIG. 7 is a perspective view of the hole opening / closing means of FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rice cooker 2 ... Rice cooker main body 3 ... Lid 4 ... Inner pot 5 ... Inner case 6 ... Outer case 7 ... Bottom coil 8 ... Corner coil 9 ... Coil stand 10 ... Center sensor 13 ... Heat radiation plate 16 ... Heat insulator 17 ... lid heater 18 ... mounting plate 20 ... ball valve 21 ... cylindrical body 24 ... steam port 25, 32 ... seal packing 27 ... hinge member 28 ... hinge arm 29 ... hinge cover 30 ... space 31 ... recess 33 ... connection terminal 34 37, lead wires 36, connection contacts 38, partition walls 40, 50, hole opening / closing members 41, springs 43, overhangs 54, connecting members 5, shafts 56, springs 60, packing with cut grooves.

Claims (2)

A rice cooker main body capable of setting an inner pan therein, a lid detachably attached to the rice cooker main body via a hinge member, a lid heating source for heating a lower surface of the lid, A connection terminal provided on the lid for supplying power to the lid heating source, and a connection provided in the hinge member to face the hole in which the connection terminal can be inserted, for supplying power to the lid heating source; A contact is provided, and a concave portion for storing the hinge member is provided at a rear portion of the lid , and a convex portion is provided on a side portion of the concave portion. When the lid is inserted into the hinge member, the connection terminal is A rice cooker connected to the connection contact through the hole, wherein a hole of the hinge member is provided with a hole opening / closing means that is opened / closed in conjunction with attachment / detachment of the lid, and the hole opening / closing means is provided with the hinge. It has a projecting portion projecting outwardly from the side of the member, the opening and closing operation of the hole closing means Is rice cookers, characterized in that the abutment between the protrusion protruding portion and is provided on the side of the lid is performed in conjunction with the non-contact. The rice cooker according to claim 1, wherein the convex portion also serves as a guide when the lid is inserted into the hinge member.

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