JP2017064024A - rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a rice cooker including a wireless communication part that is readily operable even when there is an obstacle above a place where a rice cooker is installed.SOLUTION: The rice cooker includes the wireless communication part performing wireless communication with another wireless communication part via an antenna face of a surface of the rice cooker, where the wireless communication part is disposed forward on a side opposite to a hinge binding side of a lid body relative to an inner pot.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a rice cooker that can be easily operated.

  Conventionally, some rice cookers are provided with an operation unit on a lid (for example, see Patent Document 1). In the technique disclosed in Patent Document 1, an operation surface and a display unit indicating an operation state are provided on the upper surface of the rice cooker.

JP2012-40218A

  As in the technique disclosed in Patent Document 1, when the operation unit is provided on the lid, if there is an obstacle such as a shelf above the place where the rice cooker is installed, the visibility of the display unit is improved. It was bad and it was difficult to operate the operation unit.

  This invention is for solving the said subject, and even if it is a case where there exists an obstruction in the upper place in the place which installs a rice cooker, obtaining a rice cooker provided with the radio | wireless communication part which can be operated easily. With the goal.

  A rice cooker according to the present invention is a rice cooker comprising: a main body that contains an inner pot and has a heating means for heating the inner pot; and a lid that is hinged to the main body and covers the upper portion of the main body. A wireless communication unit that wirelessly communicates with another wireless communication unit through the antenna surface of the surface of the rice cooker, the wireless communication unit being opposite to the hinge coupling side of the lid body than the inner pot It is arranged in front of.

  The rice cooker according to the present invention includes a wireless communication unit that wirelessly communicates with other wireless communication units through the antenna surface on the surface of the rice cooker, and the wireless communication unit is connected to the hinge coupling side of the lid rather than the inner pot. Was placed in front of the other side. Thereby, the user can operate a rice cooker by radio | wireless communication from the front side of a rice cooker. Therefore, even if there is an obstacle on the upper side at the place where the rice cooker is installed, a rice cooker equipped with a wireless communication unit that can be easily operated can be obtained.

It is a perspective view which shows the external appearance of the rice cooker which concerns on Embodiment 1 of this invention. It is a perspective view which shows the external appearance which opened the cover body of the rice cooker which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the cross section of the rice cooker which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the cross section which opened the cover body of the rice cooker which concerns on Embodiment 1 of this invention. It is a figure which shows the operation part which concerns on Embodiment 1 of this invention. It is a figure which shows the operation part of the state which held the portable terminal which concerns on Embodiment 1 of this invention. It is a perspective view which shows two box-shaped metal plates which concern on Embodiment 1 of this invention. It is a disassembled perspective view which shows two box-shaped metal plates and an inverter board | substrate which concern on Embodiment 1 of this invention.

  Below, embodiment of the rice cooker which concerns on this invention is described. In addition, the form of drawing is an example and does not limit this invention. Moreover, what attached | subjected the same code | symbol in each figure is the same, or is equivalent to this, and this is common in the whole text of a specification. Furthermore, in the following drawings, the relationship between the sizes of the constituent members may be different from the actual one.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing an appearance of rice cooker 100 according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing an external appearance of lid 3 of rice cooker 100 according to Embodiment 1 of the present invention. FIG. 3 is an explanatory diagram showing a cross section of the rice cooker 100 according to Embodiment 1 of the present invention. FIG. 4 is an explanatory view showing a cross section of the lid 3 of the rice cooker 100 according to Embodiment 1 of the present invention.

As shown in FIGS. 1 to 4, the rice cooker 100 according to Embodiment 1 of the present invention includes a main body 1.
In the upper part of the main body 1, an upper opening of the inner hook accommodating part 14 is formed. The upper opening is opened and closed by a lid 3 that covers an inner hook housing 14 that is axially connected to the main body 1 by a hinge 2.

  The lid 3 is always urged in an opening direction by which a top opening is opened by a hinge spring (not shown). The lid 3 is opened and closed by the latch 4 and the latch release button 5.

  An inner lid 6 is detachably provided on the lower surface of the lid 3. The inner lid 6 is fixed to a fixed frame 9 to which an annular packing 8 that seals the opening of the inner hook 7 is fixed.

On the upper side of the inner lid 6 of the lid body 3, there is attached a tooth separation case 10 for separating the tooth mixed in the steam. The separation case 10 is provided with a guide cylinder and an opening / closing valve 11 (not shown). The steam that has flowed in from the steam hole of the guide tube passes through the roughly separating case 10 of the lid 3 and is discharged to the outside from the steam discharge hole 12 at the top of the lid 3. When the heating stops and the internal pressure of the inner pot 7 decreases and the on-off valve 11 opens, the rice bowl is returned to the inner pot 7.
The rice bowl separating case 10 has a function of separating steam and rice bowl generated during rice cooking, guiding the steam to the steam discharge hole 12, and returning the rice bowl to the inner pot 7.

  The lid 3 is provided with a temperature sensor 13. The temperature sensor 13 is generally arranged at the front center of the separation case 10.

  The rice cooker 100 includes an inner pot accommodating portion 14 serving as a coil base in the main body 1, and a bottomed cylindrical inner pot 7 into which water, rice and the like are placed is detachably accommodated in the inner pot accommodating portion 14. The The inner pot 7 is cooked by being heated by an electromagnetic induction coil 15 as a heating means disposed around the center portion of the lower surface of the inner pot accommodating portion 14 and at the corner portions of the outer periphery thereof.

  The inner hook 7 is formed with a flange 7a extending radially outward at the top. As shown in FIG. 4, the flange 7 a is placed and supported on a plurality of supports (not shown) protruding upward at the upper end of the edge of the upper opening of the main body 1 when accommodated in the inner hook accommodating portion 14. . The plurality of supports are scattered in the circumferential direction at the upper end of the edge of the upper opening. For this reason, the inner hook 7 is supported by a plurality of support bodies, and the upper part protrudes from the main body 1 while being accommodated in the inner hook accommodating part 14.

  When the lid 3 is closed, the inner hook 7 is sealed by pressing the packing 8 provided on the inner lid 6 side against the upper surface of the flange 7a.

  The inner hook accommodating portion 14 includes a seal member 16 that contacts the outer surface of the inner hook 7 from the main body 1 in a state where the inner hook 7 is accommodated in the inner hook accommodating portion 14. As shown in FIGS. 3 and 4, the seal member 16 has a ring shape, and is disposed on the side wall of the inner hook accommodating portion 14 over the entire circumference. The seal member 16 is formed of an elastic body made of a soft material having heat resistance such as silicon rubber.

  By providing the seal member 16, the heat generated by heating the lower portion of the inner hook 7 in the inner hook accommodating portion 14 is prevented from escaping above the seal member 16. On the contrary, the upper part of the inner hook 7 in the inner hook accommodating portion 14 is easily cooled by touching the outside air above the seal member 16.

  The rice cooker 100 includes an operation unit 20 operated by a user. The operation unit 20 is provided on the surface of the rice cooker 100 and includes an antenna surface 22, a display unit 24, and a plurality of operation buttons 25.

The operation unit 20 includes an operation board 23 provided with a wireless communication unit 21 that performs wireless communication through the antenna surface 22 on the surface of the rice cooker 100 under the cover. The operation board 23 is also connected to the display unit 24 and a plurality of operation buttons 25.
Here, as an example of wireless communication performed through the antenna surface 22, short-range wireless communication that performs communication over a short distance will be described. NFC (Near Field Communication) is one of the short-range wireless communication, and NFC is one of the short-range wireless communication standards represented by ISO / IEC 14443, ISO / IEC 15693, etc. is there.

Next, an effect | action at the time of cooking with the rice cooker 100 of the above structures is demonstrated.
When the inner pot 7 containing water and rice is accommodated in the main body 1 of the rice cooker 100, the lid 3 is closed and the start of rice cooking is instructed by the operation unit 20, the action of the electromagnetic induction coil 15 causes the inner pot 7 is heated. When the water in the inner pot 7 boils, steam containing a rice bowl is generated. At this time, since the internal pressure of the inner hook 7 is increasing, the on-off valve 11 of the separation case 10 is pushed up and closed. For this reason, the steam including the rice bowl is guided into the separation case 10 through the guide tube from the steam hole. The rice separation case 10 separates the steam and rice balls generated during rice cooking, and guides the steam to the steam discharge hole 12. When the heating is stopped and the internal pressure of the inner hook 7 is lowered, the on-off valve 11 is lowered and opened due to its own weight and the weight of the stomach, and the rice bowl is returned to the inner hook 7.

  On the other hand, the seal member 16 is in contact with the outside of the inner hook 7, and the upper portion of the inner hook 7 protruding from the main body 1 in the state of being accommodated in the inner hook accommodating portion 14 is from the gap between the main body 1 and the lid 3. Touch the incoming outside air. Further, the heat generated by the seal member 16 below the inner hook 7 is prevented from escaping upward. For this reason, the inner skin of the inner pot 7 above the seal member 16 can be cooled by the outside air. When it comes into contact with the inside of the hook skin, the bubble is cooled and returned to the lower part of the inner pot 7, so that it is possible to suppress spillage of the bed. Therefore, even if the input power is large, the spilling of rice balls is suppressed and delicious rice can be cooked.

Next, the operation unit 20 will be described.
As shown in FIGS. 3 and 4, the operation unit 20 including the operation board 23 on which the wireless communication unit 21 is provided is disposed so that at least a part projects forward from the front end of the bottom surface 1 a of the main body 1. The operation board 23 on which the wireless communication unit 21 is provided is disposed on the main body 1 and remains in the disposed position even when the lid 3 is opened. For this reason, the wireless communication part 21 is arrange | positioned at the main body 1, and stays in the position arrange | positioned even if the cover body 3 is opened. That is, the wireless communication unit 21 is disposed in front of the inner hook 7 on the side opposite to the hinge coupling side of the lid 3.
An antenna surface 22 is provided at a position where the wireless communication unit 21 is projected onto the operation unit 20.

FIG. 5 is a diagram showing the operation unit 20 according to Embodiment 1 of the present invention.
As shown in FIG. 5, the operation unit 20 is provided in a rectangular shape with the front inclined downward in accordance with the width of the main body 1 on the front and upper side of the main body 1.

The antenna surface 22 is arranged in the operation unit 20 of the main body 1 at a position shifted in the right lateral direction from the center when viewed from the front of the main body 1.
On the other hand, the display unit 24 is provided at a position shifted in the left lateral direction opposite to the position of the antenna surface 22 from the center in the operation unit 20 of the main body 1 when viewed from the front of the main body 1.
The plurality of operation buttons 25 are arranged in a central region of the operation unit 20 of the main body 1 when viewed from the front of the main body 1 between the antenna surface 22 and the display unit 24.
The arrangement of the antenna surface 22 and the display unit 24 may be reversed left and right.

When short-distance wireless communication is used, the antenna surface 22 is displayed with, for example, an NFC short-range wireless communication standard display mark so that the user can recognize that short-distance wireless communication is possible. It has become.
The display unit 24 is a liquid crystal screen or the like, and displays a time such as the cooking time, the rice cooking disclosure time, or an error message.
The plurality of operation buttons 25 are provided so that rice cooking or heat insulation can be performed by a user's operation even when the wireless communication is not performed at a short distance by the mobile terminal.

Next, a short distance communication method using the wireless communication unit 21 will be described.
FIG. 6 is a diagram showing the operation unit 20 in a state where the portable terminal 30 according to Embodiment 1 of the present invention is held over.
As shown in FIG. 6, the user holds a portable terminal 30 such as a smartphone provided with a wireless communication unit at a short distance over the antenna surface 22. Thereby, the wireless communication part 21 of the rice cooker 100 and the wireless communication part of the portable terminal 30 perform wireless communication at a short distance through the antenna surface 22. And a user can instruct | indicate the detailed rice cooking method in the rice cooker 100 from the portable terminal 30 by wireless communication, or can refer to a rice cooking guide. At this time, the display unit 24 in the operation unit 20 is provided at a position shifted in the left lateral direction opposite to the position of the antenna surface 22 when viewed from the front of the main body 1, so even when wireless communication is performed at a short distance. It is not hidden by the portable terminal 30 and has good visibility and is easy to operate.
In addition, the apparatus which carries out radio | wireless communication with the radio | wireless communication part 21 of the rice cooker 100 at short distance may be other than a portable terminal, and an IC card etc. may be sufficient as it.

Next, a noise countermeasure configuration for the wireless communication unit 21 will be described.
As shown in FIGS. 3 and 4, an inverter board 40 is provided between the electromagnetic induction coil 15 and the wireless communication unit 21. The inverter board 40 is mounted with aluminum radiating fins 41 that cool elements (not shown). The inverter board 40 is a power conversion device that drives the electromagnetic induction coil 15. The inverter board 40 is arranged with the board on which the elements and the heat radiation fins 41 are mounted standing in the vertical direction, and the board surface is placed in front of the main body 1. The inverter board 40 is disposed between the radio communication unit 21 at the front and upper side of the main body 1 and the electromagnetic induction coil 15 at the lower side of the main body 1, and the operation unit 20 is provided at the upper front of the main body 1. Thus, the inverter board 40 is arranged in the remaining space in the lower front part in the main body 1.

  In the rice cooker 100, noise is generated from the electromagnetic induction coil 15 or the inverter board 40 that drives the electromagnetic induction coil 15. Noise may interfere with wireless communication. Therefore, two metal plates 51 and 52 that are hardly affected by noise are disposed between the wireless communication unit 21 and the inverter board 40.

FIG. 7 is a perspective view showing two box-shaped metal plates 51 and 52 according to Embodiment 1 of the present invention. FIG. 8 is an exploded perspective view showing two box-shaped metal plates 51 and 52 and the inverter board 40 according to Embodiment 1 of the present invention.
As shown in FIGS. 3, 4, 7, and 8, the metal plate 51 covers the pattern surface of the inverter substrate 40. The metal plate 51 is bent and has an upper surface and two side surfaces. Further, the metal plate 52 covers the surface on which the elements on the opposite side of the pattern surface of the inverter substrate 40 and the heat radiation fins 41 are mounted. The metal plate 52 is bent and has an upper surface and two side surfaces. That is, the two metal plates 51 and 52 are connected in the upper surface and the two side surfaces, surround the inverter substrate 40, and have a box shape covering the upper surface and the five surfaces of the four side surfaces excluding the lower surface of the inverter substrate 40. is there. The lower side of the inverter board 40 is open because it is difficult for the wireless communication unit 21 to be affected by noise.

  The two metal plates 51 and 52 surround the inverter board 40 and shield the noise from the inverter board 40 arranged with the board surface standing in the vertical direction. Further, the two metal plates 51 and 52 cause noise from the electromagnetic induction coil 15 farther from the inverter board 40 to the wireless communication unit 21 than the wireless communication unit 21 in front of and above the main body 1 and the main body 1. It shields as an upright wall between the electromagnetic induction coil 15 below and.

As shown in FIGS. 3 and 4, a cooling fan 60 is disposed below the inverter board 40. The cooling fan 60 blows airflow upward to the lower side of the inverter board 40 that is not covered with the two metal plates 51 and 52, and cools the elements and the radiation fins 41 mounted on the inverter board 40.
Further, a wiring (not shown) connected to the inverter board 40 is connected to the electromagnetic induction coil 15 and the operation board 23 from the lower side of the inverter board 40 not covered with the two metal plates 51 and 52.

  According to the first embodiment described above, the wireless communication unit 21 includes the wireless communication unit 21 that performs wireless communication at a short distance with the mobile terminal 30 held over the antenna surface 22 through the antenna surface 22 on the surface of the rice cooker 100. Is arranged in front of the inner hook 7 on the side opposite to the hinge coupling side of the lid 3. According to this configuration, the user can operate the rice cooker 100 by wireless communication at a short distance from the portable terminal 30 from the front side of the rice cooker 100. Therefore, even if there is an obstacle such as a shelf above the place where the rice cooker 100 is installed, the rice cooker 100 including the wireless communication unit 21 that can be easily operated can be obtained.

  The wireless communication unit 21 is arranged in the main body 1 and remains in the arranged position even when the lid 3 is opened. According to this configuration, even when the lid 3 is opened, the wireless communication unit 21 and the antenna surface 22 that projects the wireless communication unit 21 on the operation unit 20 remain at the arranged positions. Therefore, even when the lid 3 is opened. Wireless communication at a short distance is possible and operation is easy.

  An inverter board 40 that drives the electromagnetic induction coil 15 is provided between the electromagnetic induction coil 15 and the wireless communication unit 21. According to this structure, the inverter board | substrate 40 can be arrange | positioned in the remaining space in the main body 1 by having arrange | positioned the operation part 20 to the main body 1, and the rice cooker 100 can be reduced in size.

  Two metal plates 51 and 52 are disposed between the wireless communication unit 21 and the inverter substrate 40. According to this configuration, the two metal plates 51 and 52 are arranged between the wireless communication unit 21 and the inverter substrate 40 and the electromagnetic induction coil 15, and wireless communication in the wireless communication unit 21 is performed by the inverter substrate 40 and the electromagnetic induction. Less susceptible to noise from the coil 15.

  The pattern surface of the inverter substrate 40 was covered with a metal plate 51. According to this configuration, the wireless communication in the wireless communication unit 21 is not easily affected by noise from the inverter board 40.

  Five surfaces except the lower side of the inverter substrate 40 were covered with two metal plates 51 and 52. According to this configuration, the wireless communication in the wireless communication unit 21 is less susceptible to noise from the inverter board 40.

  At least a part of the operation unit 20 including the operation board 23 on which the wireless communication unit 21 is provided protrudes forward from the front end of the bottom surface 1 a of the main body 1. According to this configuration, even if there is an obstacle such as a shelf above where the rice cooker 100 is installed, at least a part of the operation unit 20 including the operation board 23 on which the wireless communication unit 21 is arranged is provided. Since it protrudes ahead rather than the front end of the bottom face 1a of the main body 1, the operation part 20 is easy to operate.

  The antenna surface 22 is disposed at a position shifted in the right lateral direction from the center when viewed from the front of the main body 1, and is shifted in the left lateral direction opposite to the position of the antenna surface 22 from the center as viewed from the front of the main body 1. A display unit 24 is provided at the position. According to this configuration, since the antenna surface 22 is provided on the opposite side of the display unit 24, the display unit 24 is not hidden even when the mobile terminal 30 is held over the antenna surface 22 and a wireless communication operation is performed at a short distance. Easy to operate with good visibility.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Main body, 1a Bottom face, 2 Hinge, 3 Lid body, 4 Latch, 5 Latch release button, 6 Inner lid, 7 Inner hook, 7a Flange, 8 Packing, 9 Fixing frame, 10 Negotiating case, 11 Open / close valve, 12 Steam exhaust hole, 13 Temperature sensor, 14 Inner hook housing part, 15 Electromagnetic induction coil, 16 Seal member, 20 Operation part, 21 Wireless communication part, 22 Antenna surface, 23 Operation board, 24 Display part, 25 Operation button, 30 Mobile Terminal, 40 Inverter board, 41 Radiation fin, 51 Metal plate, 52 Metal plate, 60 Cooling fan, 100 Rice cooker.

Claims (9)

A rice cooker comprising: a main body that contains an inner pot and has a heating means for heating the inner pot; and a lid that is hinged to the main body and covers an upper portion of the main body,
Through the antenna surface of the surface of the rice cooker, a wireless communication unit that wirelessly communicates with other wireless communication units,
The said radio | wireless communication part is a rice cooker arrange | positioned rather than the said inner pot in the front of the side opposite to the hinge coupling | bonding side of the said cover body.   2. The rice cooker according to claim 1, wherein the wireless communication unit is arranged in the main body and remains in the arranged position even when the lid is opened.   The rice cooker of Claim 2 provided with the inverter board | substrate which drives the said heating means between the said heating means and the said wireless communication part.   The rice cooker of Claim 3 which has arrange | positioned the metal plate between the said radio | wireless communication part and the said inverter board | substrate.   The rice cooker of Claim 4 which covered the pattern surface of the said inverter board | substrate with the said metal plate.   The rice cooker according to claim 5, wherein five surfaces except the lower surface of the inverter board are covered with the metal plate.   The wireless communication performed by the other wireless communication unit and the wireless communication unit is short-range wireless communication, and the wireless communication unit performs short-range wireless communication with the other wireless communication unit held over the antenna surface. Item 9. A rice cooker according to any one of items 1 to 6.   The rice cooker according to claim 7, wherein at least a part of the operation unit having an operation board on which the wireless communication unit is provided protrudes forward from the front end of the bottom surface of the main body. The antenna surface is arranged at a position shifted laterally from the center when viewed from the front of the main body,
The rice cooker of Claim 7 or 8 which provided the display part in the position shifted | deviated to the horizontal direction opposite to the position of the said antenna surface rather than the center seeing from the front of the said main body.

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