JP2011175886A - Induction cooking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an induction cooking device that can prevent failures of a control circuit due to water, or the like even when a panel sheet is damaged, and to enhance reliability. <P>SOLUTION: In the induction cooking device, a waterproof sheet 27 including a material having waterproof property is disposed between a panel sheet 24 and a button area 26. Thus, even when the panel sheet 24 is damaged, the waterproof sheet 24 can prevent water from entering the control circuit 13 from the button area 26, or the like. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a stationary or built-in induction heating cooker used in a general household kitchen, a commercial kitchen, or the like.

  Conventionally, the operation / display section of this type of induction heating cooker has been generally arranged on the front surface of the main body or the top surface of the main body, but in recent years, at least from the viewpoint of ease of operation and ease of display. In the mainstream, a main operation / display having a high frequency of operation or a high frequency of confirmation of status display is provided on the top surface of the main body (see, for example, Patent Document 1).

JP 2004-327112 A

  However, in the conventional configuration, when the heated frying pan or the like is accidentally brought into contact with the operation / display unit, the panel sheet is deformed or melted to cause a hole such as a hole, so that water is supplied to the control circuit. It has a problem that it may break into it and break down.

  The present invention solves the above-described conventional problems, and provides a highly reliable induction heating cooker that can prevent a control circuit from being damaged due to ingress of water or the like even when the panel sheet is damaged due to inadvertent use or the like. The purpose is to do.

  In order to solve the above-described conventional problems, a cooking device of the present invention is provided with a main body, a top plate on which the heated cooker is placed, and a lower side of the top plate. The induction heating coil, a power supply circuit for supplying high-frequency power to the induction heating coil, a control circuit for controlling the operation of the device by an external operation and displaying the operation state of the device, and the control circuit are housed An operation unit, and an opening is formed in the top surface of the main body, a part of the operation unit is faced to the opening and fixed to the main body, and an external operation force is controlled by the control unit. A panel sheet having an embossed portion for transmitting to a switch provided in the circuit and covering the operation / display surface including the opening is attached to the top surface of the main body, and an elastic arm portion is provided above the switch. Formed at one end of the With arranging the button unit for transmitting a force to the switch, between the panel sheet and the button unit, in which arranged a waterproof sheet made of a material having a waterproof property.

  With this configuration, even when the panel sheet is damaged, the waterproof sheet can prevent water from entering the control circuit from the button portion or the like.

  According to the heating cooker of the present invention, even when the panel sheet is broken, it is possible to prevent the control circuit from being broken due to water intrusion or the like, and to realize a highly reliable induction heating cooker.

The external appearance perspective view which shows schematic structure of the induction heating cooking appliance in Embodiment 1 of this invention An exploded perspective view showing a schematic configuration of the induction heating cooker The exploded perspective view of the principal part of the induction heating cooking appliance Assembly sectional view of the main part of the induction heating cooker Assembly sectional drawing of the principal part of the induction heating cooking appliance in Embodiment 2 of this invention Assembly sectional drawing of the principal part of the induction heating cooking appliance in Embodiment 3 Assembly sectional drawing of the principal part of the induction heating cooking appliance in Embodiment 4 Assembly sectional drawing of the principal part of the induction heating cooking appliance in Embodiment 5 Assembly sectional drawing of the principal part of the induction heating cooking appliance in Embodiment 6

  1st invention is a main body, the top plate which has been arrange | positioned on the top | upper surface of a main body, in which the to-be-heated cooking device is mounted, the induction heating coil provided under the top plate, and high frequency electric power to an induction heating coil A power supply circuit to be supplied, a control circuit for controlling the operation of the device by an external operation and displaying the operation state of the device, and an operation unit unit for storing the control circuit, an opening on the top surface of the main body Including an opening with an embossing part for transmitting a manipulation force from the outside to a switch provided in the control circuit. A panel sheet that covers the operation / display surface is affixed to the top surface of the main body, and a button portion that is formed at one end of an elastic arm portion above the switch and transmits an operation force by an external operation to the switch is arranged. Waterproof between panel sheet and button In which it arranged a waterproof sheet made of a material having a.

  Thus, even when the panel sheet is damaged, the waterproof sheet can prevent water from entering the control circuit from the button portion or the like.

  In particular, according to the second invention, in the first invention, the end portion of the waterproof sheet covers at least the button portion and the gap formed around the button portion for the substantially vertical movement of the button portion. It is possible to prevent water from entering, including a gap necessary for smoothing the vertical movement.

  In the third invention, in particular, in the first or second invention, a flange portion extending substantially vertically downward is formed on the outer periphery of the waterproof sheet, thereby preventing water from entering a portion covered with the waterproof sheet. Certainty increases and space saving in the horizontal direction can be achieved.

  In the fourth invention, in particular, in the first or second invention, the flange portion that extends downward toward the outside is formed on the outer periphery of the waterproof sheet, so that water enters the portion covered with the waterproof sheet. The certainty of prevention is increased, and space saving in the vertical direction can be achieved.

  In particular, in the fifth invention, in any one of the first to fourth inventions, by arranging a drain groove below the outer peripheral end of the waterproof sheet, water dropped outside the range covered by the waterproof sheet is provided. It can drain quickly.

  According to a sixth aspect of the invention, in particular, in the fifth aspect of the invention, the drainage groove disposed below the outer peripheral edge of the waterproof sheet is formed integrally with the operation unit cover that houses the control circuit, so that the joint of the drainage groove is formed. Etc. can be eliminated, and leakage of intrusion water from the drainage groove can be eliminated.

  In the seventh invention, in particular, in the first or second invention, the vicinity of the outer periphery of the gap formed around the button portion is protruded upward, and the end portion of the waterproof sheet is exposed outside the protruding portion. As a result, the area other than the area covered with the waterproof sheet can be used as the drainage path, so that even when a large amount of water enters, it does not overflow and enter the control circuit.

In an eighth aspect of the invention, in particular, in any one of the first to seventh aspects, the second embossed portion is formed at a position of the waterproof sheet facing the upper portion of the button portion, thereby impairing the operational feeling. Without a waterproof effect.

  The ninth aspect of the invention relates to a main body, a top plate placed on the top surface of the main body, on which the cooker is placed, an induction heating coil provided below the top plate, and high frequency power to the induction heating coil. A power supply circuit to be supplied, a control circuit for controlling the operation of the device by an external operation and displaying the operation state of the device, and an operation unit unit for storing the control circuit, an opening on the top surface of the main body Including an opening with an embossing part for transmitting a manipulation force from the outside to a switch provided in the control circuit. A panel sheet that covers the operation / display surface is affixed to the top surface of the main unit, a transparent part is formed on the panel sheet, the display part of the operation part unit is placed below the transparent part, and an operation part cover that houses the control circuit Forming a display window opened at a location opposite to the display section, With disposing a protecting plate made of a transparent material in the mouth the display window, the end of the protective plate is obtained by extending outward from the edge of the opening and the display window.

  As a result, water can be prevented from entering the control circuit without impairing the visibility of the display unit.

  In the tenth aspect of the invention, in particular, in the ninth aspect of the invention, since the flange portion extending substantially vertically downward is formed on the outer periphery of the protective plate, the certainty of preventing the ingress of water into the portion covered with the protective plate is ensured. As the number increases, space can be saved in the horizontal direction.

  In the eleventh aspect of the invention, in particular, in the ninth aspect of the invention, the flange portion that extends downward as it goes outward is formed on the outer periphery of the protective plate, so that it is possible to reliably prevent water from entering the portion covered by the protective plate. In addition to increasing the performance, space saving in the vertical direction can be achieved.

  In a twelfth aspect of the invention, in particular, in any one of the ninth to eleventh aspects of the invention, by arranging a drainage groove below the outer peripheral edge of the protective plate, water dropped outside the range covered by the protective plate It can drain quickly.

  According to a thirteenth aspect of the invention, in particular, in the twelfth aspect of the invention, the drainage groove disposed below the outer peripheral end of the protective plate is formed integrally with the operation unit cover that houses the control circuit, so that the joint of the drainage groove is formed. Etc. can be eliminated, and leakage of intrusion water from the drainage groove can be eliminated.

  In the fourteenth aspect of the invention, in particular, in the ninth aspect of the invention, the vicinity of the outer periphery of the opened display window protrudes upward, and the end of the protective plate faces outside the protruding portion. Since the area other than the above range can be used as a drainage route, even if a large amount of water enters, it will not overflow and enter the control circuit.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments. Here, the description order of the embodiments may be different from the order of the invention described above. In some cases, a plurality of inventions are comprehensively described.

(Embodiment 1)
FIG.1 and FIG.2 shows schematic structure of the induction heating cooking appliance in 1st Embodiment in this invention. However, components that are not necessary for the description of the embodiment are omitted even if they are main components. Hereinafter, it demonstrates using drawing.

A top plate 2 on which a cooking utensil such as a pan is placed is arranged on the top surface of the main body 1. The top plate 2 is made of a material that is not overheated by electromagnetic induction, such as highly heat-resistant glass. The top frame 3 surrounds the outer periphery of the top plate 2 and forms the upper surface of the main body 1 together with the top plate 2. The operation unit 4 provided in front of the top frame 3 includes a control circuit having a signal input unit for controlling the operation of the device by an external operation, a display unit for displaying the operation state of the device, and the like. Equipped with an operation unit (described later).

  An induction heating coil 5 is provided close to the bottom of the top plate 2. The induction heating coil 5 is held by a coil base 6 and is held at a predetermined position in the main body 1. High frequency power is supplied to the induction heating coil 5 by the power supply circuit 7. The induction heating coil 5 and the power supply circuit 7 are cooled by the ventilation of the cooling fan 8.

  3 and 4 schematically show the configuration of the operation unit 9 that constitutes the operation unit 4 of the induction heating cooker according to the first embodiment, the configuration of attachment to the main body 1, and the like.

  In FIG. 3, an operation surface 10 is formed in front of the top frame 3 that forms a part of the upper surface of the main body 1, and an operation portion cover upper 11 is disposed below the operation surface 10. It is fixed. A control circuit 13 having a signal input unit for controlling the operation of the device and a display unit for displaying the operation state of the device is housed inside the operation unit cover 11. It is fixed on the operation unit cover 11.

  The control circuit 13 is covered from below with a lower operation unit cover 15, and the operation unit cover 15 is fixed to the upper operation unit cover 11 with a third screw 16.

  The control circuit 13 is electrically connected to the power supply circuit 7 and the like by a lead wire 17 and thereby transmits and receives signals related to operation and display.

  The control circuit 13 includes a switch 18 as a signal input unit and a liquid crystal panel 19 as a display unit.

  A first opening 20 and a second opening 21 are formed on the operation surface 10 of the top frame 3 at positions corresponding to the switch 18 and the liquid crystal panel 19, respectively. A panel sheet 24 in which an embossed portion 22 is formed and a transparent portion 23 (range a in FIGS. 7, 8, and 9) is formed at a position facing the liquid crystal panel 19.

  On the operation portion cover 11, a button portion 26 that is formed at one end of an elastic arm portion 25 and that transmits an operation force due to an external operation to the switch 18 is formed at a position located above the switch 18.

  A waterproof sheet 27 made of a waterproof material is disposed between the panel sheet 24 and the button portion 26. An opening display window 28 is formed at a position on the operation unit cover 11 opposite to the display unit, and a protective plate 29 made of a transparent material is disposed on the display window 28.

  In FIG. 4, the end portion 30 of the waterproof sheet 27 covers an upper portion of a button portion 26 and a gap 31 formed around the button portion 26 so as to move substantially vertically. Further, the end portion 30 is formed with a flange portion 32 extending substantially vertically downward.

  A drainage groove 33 is disposed below the end 30 of the waterproof sheet 27, and the drainage groove 33 is integrally formed on the operation unit cover 11.

Further, the waterproof sheet 27 has a second embossed portion 34 formed at a position opposite to the button portion 26, and moves up and down in conjunction with the vertical movement of the embossed portion 22 of the panel sheet 24 by a pressing operation. .

  Even if the panel sheet 24 is damaged by arranging the waterproof sheet 27 made of a waterproof material between the panel sheet 24 and the button part 26 with the above-described configuration, Intrusion of water into the control circuit 13 can be prevented by the waterproof sheet 27.

  Further, since the end portion 30 of the waterproof sheet 27 covers at least the button portion 26 and the gap 31 formed around the button portion 26 for the substantially vertical movement of the button portion 26, the vertical movement of the button portion 26 is smoothly performed. It is possible to prevent the intrusion of water, including the gaps necessary for conversion to water.

  Further, since the flange portion 32 extending substantially vertically downward is formed on the outer periphery of the waterproof sheet 27, the reliability of preventing water from entering the portion covered with the waterproof sheet 27 is increased, and the horizontal space is saved. Can be planned.

  Further, by providing the drainage groove 33 below the outer peripheral end portion 30 of the waterproof sheet 27, the water dripped outside the range covered by the waterproof sheet 27 is quickly drained downward through the outer periphery of the operation unit cover 11. It can be done.

  Further, the drainage groove 33 disposed below the outer peripheral end 30 of the waterproof sheet 27 is integrally formed on the operation unit cover 11 that houses the control circuit 13, thereby eliminating the seam of the drainage groove 33. It is possible to eliminate leakage of intrusion water from the drainage groove 33.

  Furthermore, since the second embossed portion 34 is formed at a position of the waterproof sheet 27 facing the button portion 26, a waterproof effect can be obtained without impairing the operational feeling.

(Embodiment 2)
FIG. 5 shows a schematic configuration of the operation unit unit 35 of the induction heating cooker according to the second embodiment of the present invention, and a flange portion 37 extending downward is formed on the outer periphery of the waterproof sheet 36 toward the outside. As a result, the certainty of preventing the ingress of water into the portion covered with the waterproof sheet 36 is increased, and the depth of the drainage groove can be further reduced, so that space saving in the vertical direction can be achieved.

(Embodiment 3)
FIG. 6 shows a schematic configuration of the operation unit unit 35 of the induction heating cooker according to the third embodiment of the present invention, in which the vicinity of the outer periphery of the gap 40 formed around the button unit 39 on the operation unit cover 38 is shown upward. The end portion 43 of the waterproof sheet 42 is exposed to the outside of the protruding portion 41, so that the area other than the area covered by the waterproof sheet 42 can be used as a drainage path, so that a large amount of water enters. In such a case, the drainage groove portion will not overflow and enter the control circuit 13.

(Embodiment 4)
FIG. 7 shows a schematic configuration of the operation unit unit 35 of the induction heating cooker according to the fourth embodiment of the present invention, and the end 45 of the protection plate 44 extends outward from the edge 46 of the opened display window. Further, a flange portion 47 extending substantially vertically downward is formed at the end portion 45 thereof.

  A drain groove 48 is disposed below the end 45 of the protective plate 44, and the drain groove 48 is formed integrally with the operation unit cover 49.

  With the configuration described above, the end 45 of the protective plate 44 extends outside the edge 46 of the opened display window, so that water can enter the control circuit 13 without impairing the visibility of the display unit. Prevention can be achieved.

  In addition, since the flange portion 47 extending substantially vertically downward is formed on the outer periphery of the protective plate 44, the reliability of preventing water from entering the portion covered by the protective plate 44 is increased, and space saving in the horizontal direction is achieved. Can be planned.

  Further, by providing the drainage groove 48 below the outer peripheral end 45 of the protective plate 44, the water dripped outside the range covered by the protective plate 44 is quickly drained downward through the outer periphery of the operation unit cover 49. it can.

  Further, since the drainage groove 48 is formed integrally with the operation unit cover 49, the seam of the drainage groove 48 can be eliminated, and the leakage of the intrusion water from the drainage groove 48 can be eliminated.

(Embodiment 5)
FIG. 8 shows a schematic configuration of the operation unit unit 35 of the induction heating cooker according to the fifth embodiment of the present invention, and a flange portion 51 extending downward is formed on the outer periphery of the protection plate 50 toward the outside. As a result, the certainty of preventing water from entering the portion covered by the protective plate 50 is increased, and the depth of the drainage groove can be further reduced, so that space saving in the vertical direction can be achieved.

(Embodiment 6)
FIG. 9 shows a schematic configuration of the operation unit unit 35 of the induction heating cooker according to the sixth embodiment of the present invention, in which the vicinity of the outer periphery of the display window 53 on the operation unit cover 52 is projected upward. The end portion 56 of the protective plate 55 faces the outer side than 54, so that the area other than the range covered with the protective plate 55 can be used as a drainage path. It will not overflow and enter the control circuit 13.

  As described above, the present invention can prevent failure due to water intrusion when the panel sheet is broken with a simple configuration, and can greatly improve the reliability of the equipment, so that it can be used in a general household kitchen or a commercial kitchen. The present invention can also be applied to, for example, a desktop heating cooker other than the stationary or built-in induction heating cooker used.

DESCRIPTION OF SYMBOLS 1 Main body 2 Top plate 3 Top frame 4 Operation part 5 Induction heating coil 7 Power supply circuit 9 Operation part unit 10 Operation surface 11 On operation part cover 13 Control circuit 18 Switch 19 Liquid crystal panel 20 1st opening 21 2nd opening 22 Embossing Processed portion 23 Transparent portion 24 Panel sheet 25 Arm portion 26 Button portion 27 Waterproof sheet 28 Opened display window 29 Protective plate 30 End portion 31 (around the waterproof portion) 32 Flange portion 33 Drain groove portion 34 2 Embossed part 35 Operation part unit 36 Waterproof sheet 37 Flange part 38 On the cover of the operation part 39 Button part 40 Gap 41 Projection part 42 Waterproof sheet 43 End part (of waterproof sheet) 44 Protection plate 45 End part of protection plate 46 Display window edge 47 (Protection plate) flange part 48 Drainage groove part 49 Operation part cover Upper 50 protective plate 51 (protection plate) flange portion 52 operation cover on 53 display window 54 protrusion 55 protective plate 56 (protection plate) end

Claims (14)

A main body, a top plate on which the cooker is placed, an induction heating coil provided below the top plate, and a power source for supplying high-frequency power to the induction heating coil A circuit, a control circuit for controlling operation of the device by an external operation and displaying the operation state of the device, and an operation unit unit for storing the control circuit, and an opening is formed on the top surface of the main body. Forming and embossing part for transmitting a manipulation force from the outside to a switch provided in the control circuit, with a part of the manipulation unit facing the opening and being fixed to the main body. A panel sheet covering the operation / display surface including the opening is affixed to the top surface of the main body, and is formed on one end of an elastic arm portion above the switch to transmit an operation force by an external operation to the switch. While arranging the button part, Between the serial panel sheet and the button unit, the induction heating cooker which arranged waterproof sheet made of a material having a waterproof property. The induction heating cooker according to claim 1, wherein an end portion of the waterproof sheet covers at least a button portion and a gap formed around the button portion so as to substantially move the button portion up and down. The induction heating cooker according to claim 1 or 2, wherein a flange portion extending substantially vertically downward is formed on the outer periphery of the waterproof sheet. The induction heating cooker according to claim 1 or 2, wherein a flange portion that extends downward toward the outside is formed on the outer periphery of the waterproof sheet. The induction heating cooker of any one of Claims 1-4 which arrange | positions the groove part for drainage below the outer peripheral edge part of a waterproof sheet. The induction heating cooker according to claim 5, wherein a drainage groove disposed below the outer peripheral end of the waterproof sheet is formed integrally with an operation unit cover that houses the control circuit. The induction heating cooker according to claim 1 or 2, wherein the vicinity of the outer periphery of the gap formed around the button portion is protruded upward, and the end of the waterproof sheet faces the outside of the protrusion. The induction heating cooker according to any one of claims 1 to 7, wherein a second embossed part is formed at a position of the waterproof sheet facing the button part. A main body, a top plate on which the cooker is placed, an induction heating coil provided below the top plate, and a power source for supplying high-frequency power to the induction heating coil A circuit, a control circuit for controlling operation of the device by an external operation and displaying the operation state of the device, and an operation unit unit for storing the control circuit, and an opening is formed on the top surface of the main body. Forming and embossing part for transmitting a manipulation force from the outside to a switch provided in the control circuit, with a part of the manipulation unit facing the opening and being fixed to the main body. A panel sheet covering the operation / display surface including the opening is attached to the top surface of the main body, a transparent part is formed on the panel sheet, and the display unit of the operation unit unit is arranged below the transparent part, In front of the operation unit cover that houses the control circuit A display window opened at a position facing the display unit is formed, a protective plate made of a transparent material is disposed on the opened display window, and an end of the protective plate is placed outside the edge of the opened display window. Elongated induction heating cooker. The induction heating cooker according to claim 9, wherein a flange portion extending substantially vertically downward is formed on the outer periphery of the protective plate. The induction heating cooker according to claim 9, wherein a flange portion is formed on the outer periphery of the protective plate so as to extend downward as it goes outward. The induction heating cooker according to any one of claims 9 to 11, wherein a drainage groove is arranged below the outer peripheral end of the protective plate. The induction heating cooker according to claim 12, wherein a drainage groove disposed below the outer peripheral end of the protective plate is formed integrally with an operation unit cover that houses the control circuit. The induction heating cooker according to claim 9, wherein the vicinity of the outer periphery of the opened display window is protruded upward, and the end portion of the protective plate faces the outside of the protrusion.

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