JP5423260B2 - Electromagnetic cooker - Google Patents

Description

  The present invention relates to an electromagnetic cooker used in general homes, offices, restaurants and the like.

2. Description of the Related Art Conventionally, this type of electromagnetic cooker has one heating coil formed in a spiral shape for one object to be heated, and electromagnetic cooking is performed by controlling heating power by driving and controlling one heating coil with a high-frequency inverter. (For example, refer to Patent Document 1).
In addition, a heating coil divided so that the heating area corresponds to two types of objects to be heated is provided, and heating according to the size of the object to be heated is performed according to the operation content of the operation key for selecting the object to be heated A technique for performing is also known (see, for example, Patent Document 2).
In addition, a technique is also known in which a plurality of heating coils are provided in a lower portion of the top plate in a range where the object to be heated can be placed, and thereby the object to be heated can be induction-heated at an arbitrary position ( For example, see Patent Document 3).

JP 2004-031247 A JP-A-5-47463 JP 2006-230517 A

  However, in the configuration described in the above-mentioned conventional patent document 1, if the size of the heating coil and the object to be heated is different, the leakage magnetic flux increases and the heating efficiency decreases, the heating distribution is uneven, and the cooking performance decreases. Therefore, there is a problem that the size of the object to be heated is limited.

  Moreover, in the structure of the said patent document 2, the heating coil divided | segmented so that it may respond to two types of large and small to-be-heated objects is provided, and a heating area can be selected with the operation key which selects a to-be-heated object large and small. When heating a small object to be heated, the other heating coil is wasted. Therefore, when used in a multi-port electromagnetic cooker with many induction heating units, one can select a large or small heated object, but the other cannot secure a space for installing a heating coil, and only a small heated object There was a problem that heating could not be performed.

  Moreover, in the structure of the said prior art document 3, although an to-be-heated material can be induction-heated in the arbitrary positions of a top plate, how a user carries out heating of only a part of several heating coils. There was a problem that it was unclear whether to give instructions such as turning on and off and adjusting the heating power.

The present invention solves the above-described conventional problems, and changes the position, size, and quantity of induction heating units having two or more openings by changing the position, size, and quantity of a heating coil that can be energized. The purpose of the present invention is to provide an electromagnetic cooker that can give instructions to the heating coil that the user needs to turn on and off, adjust the heating power, etc., with an easy-to-understand display and simple operation. To do.

In order to solve the conventional problems, an electromagnetic cooker according to the present invention includes a top plate on which an object to be heated is placed, a plurality of heating coils arranged in substantially the same plane, and a control for controlling the heating coil. A plurality of heating coils to adjust at least one of the position, the size, and the quantity of the heating unit , the plurality of heating operation units that input instructions to the control unit, and the induction heating unit A heating coil comprising information for selecting the heating coil and the heating coil that cannot be energized, and information for selecting each heating operation unit that operates the heating coil that can be energized corresponding to each induction heating unit An information storage unit that stores pattern information; and a selection unit that selects one heating coil pattern information from the plurality of heating coil pattern information stored in the information storage unit, and The thermal operation unit includes a heating coil pattern information display unit that displays which induction heating unit corresponding to which induction heating unit is operated, and the control unit is one selected by the selection unit. According to the heating coil pattern information, the heating coil pattern information display unit performs heating operation or stopping of the energizable heating coil corresponding to each induction heating unit substantially simultaneously based on an instruction input to each heating operation unit. In addition, an induction cooker that displays which of the two or more induction heating units operates the heating coil that can be energized corresponding to which induction heating unit ,
The heating coil pattern information display unit includes a plurality of light display means, and the control unit causes a part of the light display means to emit light according to one heating coil pattern information selected by the selection means, and By turning off the others, it is possible to display which of the two or more induction heating units to operate the heating coil that can be energized corresponding to which induction heating unit .

  This makes it possible to change the position of the heating coil that can be energized based on the instruction of the selection means, and supply the induction heating unit necessary for the cooking menu by adjusting the positions of the induction heating units of two or more ports. In addition, it is possible to clearly and concisely inform the user which operation unit can instruct which induction heating unit can turn heating on and off and adjust the heating power.

  The electromagnetic cooker of the present invention can only change the position, size, and quantity of the induction heating unit having two or more mouths by changing the position, size, and quantity of the heating coil that can be energized. In addition, it is possible to provide an electromagnetic cooker that allows a user to give instructions such as turning heating on and off and adjusting the heating power to a heating coil that is required by an easy-to-understand display and simple operation.

(A) Top view of the electromagnetic cooker in Embodiment 1 of this invention, (b) Side view of the electromagnetic cooker in Embodiment 1 of this invention Circuit diagram of electromagnetic cooker in Embodiment 1 of the present invention The top view of the top plate which shows arrangement | positioning of the heating coil 7 of the electromagnetic cooker in Embodiment 1 of this invention. (A) The figure which shows heating coil pattern PT1 which the information storage part of the electromagnetic cooker in Embodiment 1 of this invention has memorize | stored, (b) The information storage part of the electromagnetic cooker in Embodiment 1 of this invention The figure which shows heating coil pattern PT2 memorize | stored, (c) The figure which shows heating coil pattern PT3 which the information storage part of the electromagnetic cooking appliance in Embodiment 1 of this invention has memorize | stored, (d) Implementation of this invention The figure which shows heating coil pattern PT4 which the information storage part of the electromagnetic cooking device in form 1 of is memorize | stored The block diagram of the induction heating part display means 16 of the electromagnetic cooking appliance in Embodiment 1 of this invention Circuit diagram of inverter circuit 4 of the electromagnetic cooking device in Embodiment 1 of the present invention Configuration diagram of operation panel 48 of the electromagnetic cooker in Embodiment 1 of the present invention The block diagram of the 1st heating coil pattern information display part of the electromagnetic cooker in Embodiment 1 of this invention. The block diagram of the 2nd heating coil pattern information display part of the electromagnetic cooker in Embodiment 1 of this invention. The block diagram of the 3rd heating coil pattern information display part of the electromagnetic cooker in Embodiment 1 of this invention. The block diagram of the light display part 115 of the 1st heating coil pattern information display part 112 (1) of the electromagnetic cooker in Embodiment 1 of this invention. The display pattern figure of the heating coil pattern which the user memorize | stored in the information storage part of the electromagnetic cooker in Embodiment 1 of this invention selected by the selection part, and a heating coil pattern information display part The wave form diagram of the electric current which flows into each of the some heating coil which forms the group at the time of heating and stopping the iron pan of the electromagnetic cooker in Embodiment 1 of this invention The wave form diagram of the electric current which flows into each of the some heating coil which forms the group at the time of heating and stopping the aluminum pot of the electromagnetic cooker in Embodiment 1 of this invention Top view of another electromagnetic cooker 1A of the electromagnetic cooker according to Embodiment 1 of the present invention. The block diagram of the heating coil pattern information display part of other electromagnetic cookers 1A of the electromagnetic cooker in Embodiment 1 of this invention Top view of still another electromagnetic cooker 1B of the electromagnetic cooker according to Embodiment 1 of the present invention. The heating coil pattern figure which the information storage part of the other electromagnetic cooker 1B of the electromagnetic cooker in Embodiment 1 of this invention memorize | stores.

The first invention includes a top plate for placing an object to be heated, a plurality of heating coils arranged substantially in the same plane, a control unit for controlling the heating coil, and a plurality of instructions for inputting instructions to the control unit. Among the plurality of heating coils, the heating coil that can be energized and the heating coil that cannot be energized to adjust at least one of the position, size, and quantity of the heating operation unit and the induction heating unit An information storage unit that stores heating coil pattern information that includes information for selecting the heating operation unit that operates the heating coil that can be energized corresponding to the induction heating unit, and the information. Selecting means for selecting one heating coil pattern information from the plurality of heating coil pattern information stored in the storage unit, and the heating operation unit corresponds to any induction heating unit. While providing the heating coil pattern information display part which displays whether the said heating coil which can be supplied with electricity is operated, the said control part is each said induction heating part according to one heating coil pattern information selected by the said selection means The heating operation or stop of the energizable heating coil corresponding to is performed substantially simultaneously based on an instruction input to each heating operation unit, and the heating coil pattern information display unit includes any one of two or more induction heating units. An electromagnetic cooker that displays whether to operate the heating coil that can be energized corresponding to the induction heating unit of
The heating coil pattern information display unit includes a plurality of light display means, and the control unit causes a part of the light display means to emit light according to one heating coil pattern information selected by the selection means, and Based on the instruction of the selection means, by displaying the operation of the heating coil that can be energized corresponding to which induction heating unit among the two or more induction heating units by turning off the others. It is possible to change the position of the heating coil that can be energized, and not only can supply the induction heating unit necessary for the cooking menu by adjusting the position of the induction heating unit of two or more ports, but any induction heating It is possible to clearly and concisely inform the user which heating operation part can be used to give instructions such as heating on / off and adjustment of heating power, with easy-to-understand display and simple operation Therefore, it is possible to provide an easy electromagnetic cooker user to use.

Further, the position of the heating coil that can be energized can be changed based on the instruction of the selection means, and the induction heating unit necessary for the cooking menu is supplied by adjusting the size of the induction heating unit having two or more ports. In addition, it is possible to clearly and concisely inform the user which heating operation unit can be used to instruct which induction heating unit can turn heating on and off, adjust the heating power, etc. An electromagnetic cooker that is easy for the user to use can be provided by a simple operation.
In addition, the position of the heating coil that can be energized can be changed based on the instruction of the selection means, and the induction heating unit necessary for the cooking menu is supplied by adjusting the number of induction heating units of two or more ports. In addition, it is possible to clearly and concisely inform the user which heating operation unit can be used for instructions such as turning on and off the heating and adjusting the heating power in which induction heating unit, easy to understand display and easy An easy-to-use electromagnetic cooker can be provided by simple operation.
Further, the heating coil pattern information display unit includes a plurality of light display means, and the control unit causes a part of the light display means to emit light according to one heating coil pattern information selected by the selection means, In addition, by turning off the others, it is possible to display which of the two or more induction heating units to operate the heating coil that can be energized corresponding to which induction heating unit, which is easy for the user to understand. An electromagnetic cooker having a display portion can be provided.
In addition, by operating or stopping a plurality of heating coils corresponding to one induction heating unit substantially simultaneously, it is possible to operate the plurality of heating coils as one heating coil, and the user can operate each of the plurality of heating coils. It is no longer necessary to operate the cooking device, and the number of operations can be reduced to provide an easy-to-use cooker.
A second invention is, in particular, in the electromagnetic cooker of the first aspect of the invention, the heating coil pattern information display section is provided with a peripheral frame, by which the shape of the outer peripheral frame in the shape similar to the shape of the top plate, two-neck Of the above induction heating units, which induction heating unit can be energized corresponding to which induction heating unit can be displayed more easily and induction heating on which an object to be heated such as a pan is placed It is possible to recognize the position of the portion by the relative position with respect to the top plate, and it is possible to provide an electromagnetic cooker having a display portion that is easier for the user to understand.
In a third aspect of the invention, in the electromagnetic cooker of the first or second aspect of the invention, the induction heating unit display means for displaying the induction heating unit on the top plate by causing at least a part to emit light is provided below the top plate, The heating coil pattern information further includes light emission information of the induction heating unit display means for displaying each induction heating unit, and the control unit is configured to respond to one heating coil pattern information selected by the selection unit, By causing the induction heating unit display means to emit light, it becomes possible for the user to visually recognize the position, size, and quantity of the induction heating unit, and the user can set the position, size, and quantity required according to the cooking menu. You can choose.

  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.

(Embodiment 1)
FIG. 1A is a top view of the electromagnetic cooker 1 according to the first embodiment of the present invention, and FIG. 1B is a side view of the electromagnetic cooker according to the first embodiment of the present invention. FIG. 2 is a circuit diagram of the electromagnetic cooker according to the first embodiment of the present invention.

1 and 2, the electromagnetic cooker 1 includes a filter circuit unit 3 that converts AC power input from a commercial power source 2 of 100 V or 200 V into DC power, and a DC power output from the filter circuit unit 3 according to a predetermined value. Heating composed of an inverter unit 5 composed of a plurality of inverter circuits 4 that respectively generate high-frequency power having a frequency, a control unit 6 that drives and controls the inverter unit 5, and a plurality of heating coils 7 that generate high-frequency magnetic fluxes using the high-frequency power. The coil unit 8, the power detection unit 9 that detects power supplied to the heating coil unit 8, the top plate 10 disposed above the plurality of heating coils 7, and the user operates to control the control unit 6 Operating panel 48, information storage unit 14 for storing a plurality of heating coil patterns, and main power switch for connecting and disconnecting commercial power source 2 and filter circuit unit 3. And a 47.

  The operation panel 48 is a selection unit that selects one heating coil pattern from the plurality of heating coil patterns stored in the heating operation unit 12 for the user to adjust the power or temperature, the display unit 13, and the information storage unit 14. 15 and a heating coil pattern information display unit 112 for displaying which induction heating unit corresponding to which heating coil can be energized is operated.

  Furthermore, the heating coil pattern information display unit 112 includes an outer peripheral frame 113, a frame 114, and a plurality of light display units 115 provided in the frame 114.

  The main power switch 47 turns on / off the energization of the inverter unit 5. The information storage unit 14 and the control unit 6 are composed of a microcomputer. The filter circuit unit 3 includes a rectifier circuit and a power factor correction circuit.

  The inverter circuit 4 includes a switching element that turns on / off the DC power converted by the filter circuit unit 3 at a predetermined timing. The top plate 10 is made of a material having heat resistance and light transmittance such as hard glass. The top plate 10 has an upper surface 10A configured to place an object to be heated 11 such as a pan, and a lower surface 10B opposite to the upper surface 10A.

  The plurality of heating coils 7 are arranged substantially on the same plane below the lower surface 10B of the top plate 10 along the lower surface 10B of the top plate 10.

  The user sets the magnitude of the high frequency power supplied to the coil unit 8 or the temperature at which the object to be heated 11 is heated by operating the heating operation unit 12. The display unit 13 displays the set power or temperature and the progress state of a menu such as an automatic cooking menu.

  The heating coil pattern information is information indicating the heating coil 7 that can supply high-frequency power among the plurality of heating coils 7 and the heating coil 7 that cannot supply high-frequency power, and is a top plate. The position, size, and quantity of the heatable region on the top surface of 10 are determined.

  FIG. 3 is a top view of the top plate 10 showing the arrangement of the heating coils 7 (1) to 7 (40) as the plurality of heating coils 7. The plurality of heating coils 7 (1) to 7 (40) have a spiral circular shape with a diameter of 70 mm, and are arranged in a matrix of 8 columns in the horizontal direction and 5 rows in the vertical direction.

  Each of the heating coils 7 (1) to 7 (40) is surrounded by induction heating unit display means 16 that can emit light. The heating coil 7 may have other shapes such as a rectangle, an ellipse, and a polygon, and all the heating coils 7 (1) to 7 (40) may not have the same shape.

  In addition, the number of the plurality of heating coils 7 is not limited to 40, and may be arranged in another matrix shape.

FIG. 4 (a) is a diagram showing the heating coil pattern PT1 stored in the information storage unit of the electromagnetic cooker in the first embodiment of the present invention. FIG. 4 (b) is an electromagnetic diagram in the first embodiment of the present invention. The figure (c) which shows heating coil pattern PT2 which the information storage part of the cooker has memorize | stored is heating coil pattern PT which the information storage part of the electromagnetic cooker in the 1st Embodiment of this invention has memorize | stored.
(D) which shows 3 is a figure which shows heating coil pattern PT4 which the information storage part of the electromagnetic cooker in the 1st Embodiment of this invention has memorize | stored.

  4A, the heating coil pattern PT1 defines a group 27A, a group 28A, a group 29A, and a group 51A each including at least one of the plurality of heating coils 7, and a heatable region 27 on the upper surface of the top plate 10, 28 and 29 and a non-heatable area 51 are defined.

  The group 27 </ b> A includes heating coils 7 (17) to 7 (19), 7 (25) to 7 (27), and 7 (33) to 7 (35) among the plurality of heating coils 7. The group 28 </ b> A includes heating coils 7 (22) to 7 (24), 7 (30) to 7 (32), and 7 (38) to 7 (40) among the plurality of heating coils 7.

  The group 29 </ b> A includes heating coils 7 (4), 7 (5), 7 (12), and 7 (13) among the plurality of heating coils 7. The group 51A includes heating coils 7 (1) to 7 (3), 7 (6) to 7 (8), 7 (9) to 7 (11), and 7 (14) to 7 (7) among the plurality of heating coils 7. (16), 7 (20), 7 (21), 7 (28), 7 (29), 7 (36), 7 (37).

  The plurality of heating coils 7 in the group 27 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 27 on the top surface of the top plate 10. The plurality of heating coils 7 in the group 28 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 28 on the top surface of the top plate 10.

  The plurality of heating coils 7 in the group 29 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 29 on the upper surface of the top plate 10. The plurality of heating coils 7 in the group 51 </ b> A cannot be supplied with high-frequency power and are controlled by the control unit 6 to form a non-heatable region 51 on the upper surface of the top plate 10.

  4B, the heating coil pattern PT2 defines a group 52A, a group 53A, and a group 54A each including at least one of the plurality of heating coils 7, and the heatable regions 52, 53, 54 is determined.

  The group 52A includes heating coils 7 (1) to 7 (5), 7 (9) to 7 (13), 7 (17) to 7 (21), and 7 (25) to 7 of the plurality of heating coils 7. (29), 7 (33) to 7 (37). The group 53 </ b> A includes heating coils 7 (22) to 7 (24), 7 (30) to 7 (32), and 7 (38) to 7 (40) among the plurality of heating coils 7.

  The group 54 </ b> A includes heating coils 7 (6) to 7 (8) and 7 (14) to 7 (16) among the plurality of heating coils 7.

  The plurality of heating coils 7 in the group 52 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 52 on the upper surface of the top plate 10. The plurality of heating coils 7 of the group 53 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 53 on the top surface of the top plate 10. The plurality of heating coils 7 in the group 54 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 54 on the top surface of the top plate 10.

  In FIG. 4C, the heating coil pattern PT3 defines a group 56A including all of the plurality of heating coils 7, and defines a heatable region 56 on the upper surface of the top plate 10. The group 56A is composed of heating coils 7 (1) to 7 (40).

  The plurality of heating coils 7 of the group 56 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 56 on the upper surface of the top plate 10.

  4D, the heating coil pattern PT4 defines a group 57A and a group 58A each including at least one of the plurality of heating coils 7. The heatable regions 57 and 58 are defined on the upper surface of the top plate 10.

  The group 57A includes heating coils 7 (1) to 7 (4), 7 (9) to 7 (12), 7 (17) to 7 (20), and 7 (25) to 7 of the plurality of heating coils 7. (28), 7 (33) to 7 (36). The group 58A includes heating coils 7 (5) to 7 (8), 7 (13) to 7 (16), 7 (21) to 7 (24), and 7 (29) to 7 among the plurality of heating coils 7. (32), 7 (37) to 7 (40).

  The plurality of heating coils 7 in the group 57 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 57 on the top surface of the top plate 10. The plurality of heating coils 7 of the group 58 </ b> A can supply high-frequency power and are controlled by the control unit 6 to form a heatable region 58 on the upper surface of the top plate 10.

  FIG. 5 is a configuration diagram of the induction heating unit display means 16 of the electromagnetic cooker according to the first embodiment of the present invention. In FIG. 5, the induction heating unit display unit 16 includes a light guide unit 16 </ b> A disposed on the lower surface 10 </ b> B of the top plate 10 and a light emitting unit 16 </ b> B that generates light that passes through the top plate 10. The light emitting unit 16B is composed of a light emitting element such as a light emitting diode, a laser, or a fluorescent tube.

  The control unit 6 controls the light emitting unit 16 </ b> B so as to surround the heatable region formed based on the heating coil pattern information selected by the user with the selection unit 15 among the plurality of induction heating unit display means 16. The part display means 16 is caused to emit light based on the light emission information 111, and the user can visually recognize the outer periphery of the heatable region through the upper surface 10A of the top plate 10. The light emission information 111 is included in the heating coil pattern information.

  In the electromagnetic cooker 1, the heated object 11 can be efficiently heated by adjusting the size, position, and quantity of the heatable region according to the size, position, and quantity of the heated object 11.

  FIG. 6 is a circuit diagram of the inverter circuit 4 of the electromagnetic cooker according to the first embodiment of the present invention. In FIG. 6, the inverter circuit 4 is provided corresponding to each of the plurality of heating coils 7.

  The inverter circuit 4 includes switching elements 17 and 18, a snubber capacitor 19 that reduces the switching loss of the switching elements 17 and 18, a power detection unit 9 that detects power supplied to the heating coil 7, and switching elements 17 and 18. A conduction ratio setting unit 20 for setting a conduction ratio and a resonance capacitor 21 are provided.

  The conduction ratio setting unit 20 sets the conduction duty of the switching elements 17 and 18 based on the signal sent from the control unit 6 (FIG. 2) and the power detected by the power detection unit 9.

  In response to the user's operation on the heating operation unit 12, the control unit sends a heating power signal for setting power, a heating start signal, and a heating stop signal to the conduction ratio setting unit 20. The conduction ratio setting unit 20 controls the power supplied to the heating coil 7 by setting the conduction ratio of the switching elements 17 and 18 by comparing the power set by the heating power signal with the power detected by the power detection unit 9. To do.

  In the electromagnetic cooker 1 according to the first embodiment, one filter circuit unit 3 (FIG. 2) supplies DC power to a plurality of inverter circuits 4, and an inexpensive and small electromagnetic cooker 1 can be obtained with a small number of parts. .

  By providing the plurality of heating coils 7 with the same number of inverter circuits 4, high-frequency power can be supplied to the plurality of heating coils 7.

  Although the inverter circuit 4 in the first embodiment is a single-ended push-pull method, it may be another method such as a bridge method or a one-stone inverter composed of one switching element.

  The electromagnetic cooker 1 may further include a step-up circuit, a step-down circuit, or a step-up / step-down circuit provided between the filter circuit unit 3 and the inverter circuit 4.

  One inverter circuit 4 supplies electric power to one heating coil 7 to control the heating amount of the heating coil 7. That is, the plurality of inverter circuits 4 (1) to 4 (40) of the electromagnetic cooking device 1 according to the first embodiment supplies power to the heating coils 7 (1) to 7 (40), respectively, and individually controls the heating amount. doing.

  For example, the control unit 6 varies the operating frequency of the inverter circuits 4 (1) to 4 (40) and the conduction duty of the switching elements 17 and 18, for example, the heatable region 27 shown in FIG. The heated object of a magnetic material such as an iron or magnetic stainless steel pan can be heated, and the non-magnetic material such as a nonmagnetic stainless steel or aluminum pot can be heated in the heatable region 28.

  FIG. 7 is a configuration diagram of the operation panel 48 of the electromagnetic cooking device according to the first embodiment of the present invention. In FIG. 7, the heating operation unit 12 includes three heating operation units 12 </ b> A to 12 </ b> C for the user to operate the three heatable regions.

  Each of the heating operation units 12A to 12C includes a “heating on / off” key 22, an “output up” key 23, an “output down” key 24, a “cooking menu” key 25, and a “timer” key 26.

  These keys are constituted by switches such as a touch key for detecting capacitance, a push switch key, or a voice key. The selection unit 15 is provided at a position different from the heating operation unit 12 and in the vicinity of the heating operation unit 12.

  Furthermore, the operation panel 48 has a first heating coil pattern information display unit 112 (1) that displays which induction heating unit corresponding to which induction heating unit is operated in the vicinity of the first heating operation unit 12A. The second heating coil pattern information display unit 112 (2) is in the vicinity of the second heating operation unit 12B, and the third heating coil pattern information display unit 112 (3) is in the vicinity of the third heating operation unit 12C. I have.

  FIG. 8 is a configuration diagram of the first heating coil pattern information display unit of the electromagnetic cooker according to the first embodiment of the present invention, and FIG. 9 is a second diagram of the electromagnetic cooker according to the first embodiment of the present invention. FIG. 10 is a configuration diagram of a third heating coil pattern information display unit of the electromagnetic cooker according to the first embodiment of the present invention.

In FIG. 8, the first heating coil pattern information display unit 112 (1) includes an outer peripheral frame 113 (1) that makes the user image TP (top plate), and a frame 114 (1 that makes the induction heating unit display means 16 image. And six light display portions 115 (1) to (6).

  In FIG. 9, the second heating coil pattern information display unit 112 (2) includes an outer peripheral frame 113 (2) that makes the user image TP, a frame 114 (2) that makes the induction heating unit display means 16 image, and 6 The optical display units 116 (1) to (6) are provided.

  In FIG. 10, the third heating coil pattern information display unit 112 (3) includes an outer peripheral frame 113 (3) that makes the user imagine TP, a frame 114 (3) that makes the induction heating unit display means 16 image, and 6 The optical display units 117 (1) to (6) are provided.

  FIG. 11 is a configuration diagram of the light display unit 115 of the first heating coil pattern information display unit 112 (1) of the electromagnetic cooker according to the first embodiment of the present invention.

  In FIG. 11, the light display portions 115 (1) to 115 (6) (FIG. 8) of the first heating coil pattern information display portion 112 (1) include a light guide portion 115 </ b> A disposed on the lower surface 10 </ b> B of the top plate 10. And a light emitting unit 115B that generates light that passes through the top plate 10.

  Further, the light display sections 116 (1) to (6) (FIG. 9) of the second heating coil pattern information display section 112 (2) are the same as the first heating coil pattern information display section 112 (1). In addition, the light guide unit 116 </ b> A disposed on the lower surface 10 </ b> B of the top plate 10 and the light emitting unit 116 </ b> B that generates light that passes through the top plate 10 are provided.

  Further, the light display units 117 (1) to (6) (FIG. 10) of the third heating coil pattern information display unit 112 (3) are the same as the first heating coil pattern information display unit 112 (1). In addition, the light guide unit 117 </ b> A disposed on the lower surface 10 </ b> B of the top plate 10 and the light emitting unit 117 </ b> B that generates light that passes through the top plate 10 are provided.

  The light display units 115 (1) to (6) of the first heating coil pattern information display unit 112 (1) and the light display units 116 (1) to 116 (1) of the second heating coil pattern information display unit 112 (2). (6), the light emitting portions 115B (1) to (6) and 116B (1) to (6) of the light display portions 117 (1) to (6) of the third heating coil pattern information display portion 112 (3). ) 117B (1) to (6) are formed of light emitting elements such as light emitting diodes, lasers, or fluorescent tubes.

  FIG. 12 is a display pattern diagram of the heating coil pattern and the heating coil pattern information display unit selected by the selection unit by the user stored in the information storage unit of the electromagnetic cooker according to the first embodiment of the present invention.

  In FIG. 12, the information is correspondence information between the heating coil pattern selected by the user using the selection unit 15 (FIG. 2) and the display pattern of the heating coil pattern information display unit 112 that is stored in the information storage unit 14.

  When the user turns on the main power switch 47 of the electromagnetic cooker 1 or when the user operates the selection unit 15, the control unit 6 displays correspondence information according to the currently selected heating coil pattern. The first to third heating operation units are read out from the information storage unit 14 and controlled by the light emitting units 115B (1) to (6), 116B (1) to (6), and 117B (1) to (6). 12A, 12B, and 12C (FIG. 7) can indicate to the induction heating unit below which heatable region the correspondence relationship is made visible to the user through the upper surface 10A of the top plate 10 with light.

  That is, the information on the induction heating unit related to the heating operation unit 12A can be recognized from the display content of the first heating coil pattern information display unit 112 (1) provided near the heating operation unit 12A.

  Moreover, the information of the induction heating part relevant to the heating operation part 12B can be recognized by the display content of the 2nd heating coil pattern information display part 112 (2).

  Moreover, the information of the induction heating part relevant to the heating operation part 12C can be recognized by the display content of the 3rd heating coil pattern information display part 112 (3).

  In the present embodiment, the heating coil group corresponding to the induction heating unit located below the heatable region where an instruction can be input is set to one color (in this example, red, and the solid line frame and the shaded part in FIG. The heating coil group corresponding to the induction heating unit located below the other heatable region is displayed in another color (in this embodiment, white, and represents the solid line frame and the white part in FIG. 12). The heating coil group corresponding to the induction heating unit located below the non-heatable area that is displayed and is not energized is turned off (represents a dotted line frame and a white part in FIG. 12).

  In the first embodiment of the present invention, the light display portions 115 (1), 116 (1), 117 (1) shown in FIGS. 8, 9, and 10 are replaced with the heating coil 7 (17) shown in FIG. Correspond to -7 (19), 7 (25) -7 (27), 7 (33) -7 (35).

  Further, the light display portions 115 (2), 116 (2), and 117 (2) shown in FIGS. 8, 9, and 10 have heating coils 7 (20), 7 (21), and 7 (28) shown in FIG. ), 7 (29), 7 (36), and 7 (37).

  8, 9, and 10, the light display units 115 (3), 116 (3), and 117 (3) have heating coils 7 (22) to 7 (24) and 7 (30) shown in FIG. 3. ) To 7 (32) and 7 (38) to 7 (40).

  Further, the light display portions 115 (4), 116 (4), and 117 (4) shown in FIGS. 8, 9, and 10 have heating coils 7 (1) to 7 (3) and 7 (9) shown in FIG. ) To 7 (11).

  Further, the light display portions 115 (5), 116 (5), and 117 (5) shown in FIGS. 8, 9, and 10 have heating coils 7 (4), 7 (5), and 7 (12) shown in FIG. ), 7 (13).

8, 9, and 10, the light display portions 115 (6), 116 (6), and 117 (6) have heating coils 7 (6) to 7 (8) and 7 (14) shown in FIG. 3. ) To 7 (16).
With the above operation, in the heating coil patterns 1 to 4 (PT1 to 4) shown in FIGS. 4A to 4D, the first to third heating operation units 12A to 12C are below any heatable region. It is possible to give an instruction to the induction heating unit located at the top of the top plate 10 or to allow the user to visually recognize the corresponding relationship through the upper surface 10A of the top plate 10, thereby improving usability.

  Further, the outer peripheral frame 113 of the heating coil pattern information display unit 112 is similar to the shape of the top plate 10. That is, the ratio between the dimension y0 shown in FIGS. 8, 9, and 10 and the dimension Y0 shown in FIG. 1, and the ratio between the dimension x1 shown in FIGS. 8, 9, and 10 and the dimension X1 shown in FIG. Designed to.

  As a result, the user can recognize the position of the induction heating unit on which the object to be heated such as a pan is placed, relative to the top plate 10, and can be easily understood and improved in usability. Become.

  The shape of the frame 114 of the heating coil pattern information display unit 112 is similar to the shape of the induction heating unit display means 16. That is, the ratio between the dimension a0 shown in FIGS. 8, 9, and 10 and the dimension A0 shown in FIG. 1 and the ratio between the dimension b0 shown in FIGS. 8, 9, and 10 and the dimension B0 shown in FIG. Designed to.

  Similarly, the ratio between the dimension a1 shown in FIGS. 8, 9, and 10 and the dimension A1 shown in FIG. 1 is equal to the ratio between the dimension b1 shown in FIGS. 8, 9, and 10 and the dimension B1 shown in FIG. The ratio of the dimension b2 shown in FIGS. 8, 9, and 10 to the dimension B2 shown in FIG. 1 is equal.

  Thereby, the user can recognize the position of the induction heating unit on which the object to be heated such as a pan is placed by the size, and it becomes easier to understand and the usability can be improved.

  About the electromagnetic cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The control unit 6 sets a heating coil pattern PT1 shown in FIG. 4A as an initial heating coil pattern. The user turns on the main power switch 47 of the electromagnetic cooker 1 to connect the commercial power source 2 and the filter circuit unit 3.

  The control unit 6 reads the heating coil pattern PT1, which is an initial heating coil pattern, from the information storage unit 14, and controls the inverter circuit 4 to supply high-frequency power to the heating coils 7 in the heatable regions 27 to 29 of the heating coil pattern PT1. Energization is performed so that the high frequency power cannot be supplied to the heating coil in the non-heatable region 51.

  The control unit 6 reads the light emission information 111, controls the light emitting unit 16B of the induction heating unit display means 16 surrounding the heatable regions 27 to 29, and emits light surrounding the heatable regions 27 to 29 on the top plate 10. A user visually recognizes the heatable regions 27 to 29.

  Further, the control unit 6 reads the correspondence information shown in FIG. 12 from the information storage unit 14, and the light display units 115, 116, 117 of the first to third heating coil pattern information display units 112 (1) to (3). By controlling the control unit 12A to C, the user can visually recognize the correspondence relationship between the heatable region and the induction heating unit below the heatable region through the upper surface 10A of the top plate 10.

  When the user operates the selection unit 15, the control unit 6 sequentially reads out the heating coil patterns PT <b> 1 to PT <b> 4 in a predetermined order from the information storage unit 14 every time the user operates the heating unit defined by the heating coil patterns PT <b> 1 to PT <b> 4. It is impossible to supply the high frequency power to the plurality of heating coils 7 in the non-heatable region by controlling the inverter unit 5 so that the high frequency power can be supplied to the plurality of heating coils 7 in the possible region. The inverter unit 5 is controlled so that

Further, the control unit 6 causes the user to visually recognize the heatable region on the top plate 10 by the induction heating unit display unit 16. Further, the control unit 6 reads the correspondence information of the heating coil pattern and the heating coil pattern information display unit 112 shown in FIG. 12 from the information storage unit 14 according to the selected heating coil patterns PT1 to PT4, and the light emitting unit 115B. The first to third heating operation units 12A, 12B, and 12C can instruct the induction heating unit below any of the heatable regions, and the correspondence relationship between the upper surface 10A of the top plate 10 Through which the user can see with light.
The information storage unit 14 includes one or more heatable regions 27, 2 on the upper surface 10A of the top plate 10.
8, 29 and one or more non-heatable regions 51, a heating coil pattern PT1, a heating coil pattern PT2 that defines one or more heatable regions 52, 53, 54 on the top surface 10A of the top plate 10, and a top A heating coil pattern PT3 that defines one heatable region 56 on the upper surface 10A of the plate 10 and a heating coil pattern PT4 that defines one or more heatable regions 57 and 58 on the upper surface 10A of the top plate 10 are stored.

  The control unit 6 selects the heating coil pattern PT1 among the heating coil patterns PT1, PT2, PT3, and PT4.

  Then, an inverter is provided so that high-frequency power can be supplied to the heating coils 7 located in one or more heatable regions 27, 28, 29 of the selected heating coil pattern PT1 among the plurality of heating coils 7. The unit 5 is controlled.

  Moreover, the control part 6 becomes impossible to supply high frequency electric power to the heating coil 7 located in the 1 or more non-heatable area | region 51 of the selected heating coil pattern PT1 among the some heating coils 7. FIG. Thus, the inverter unit 5 is controlled.

  Further, since the induction heating unit 27A located below the heatable region 27 can be operated by the first heating operation unit 12A, the control unit 6 is arranged in the vicinity of the first heating operation unit 12A. In the heating coil pattern information display section 112 (1), the heating coils 7 (17) to 7 (19), 7 (25) to 7 (27), and 7 (33) to 7 (35) corresponding to the induction heating section 27A. ) Corresponding to the induction heating unit 28 </ b> A located below the other heatable region 28, with the light display unit 115 (1) corresponding to) lit with one color (red in this embodiment) indicating that it is an operation target. The light display section 115 (3) corresponding to the heating coils 7 (22) to 7 (24), 7 (30) to 7 (32), 7 (38) to 7 (40), and below the heatable area 29 Heating coils 7 (4), 7 corresponding to the induction heating unit 29A located at 5), 7 (12), 7 (13) corresponding to the light display portion 115 (5) is lit in the other color (white in this embodiment), the other heating coil 7 (20 ), 7 (21), 7 (28), 7 (29), 7 (36), 7 (37), 7 (1) -7 (3), 7 (9) -7 (11), 7 (6) ) To 7 (8) and 7 (14) to 7 (16), the light display portions 115 (2), (4), and (6) are turned off.

  In addition, since the induction heating unit 28A located below the heatable region 28 can be operated by the third heating operation unit 12C, the control unit 6 is arranged in the vicinity of the third operation unit 12C. In the heating coil pattern information display unit 112 (3), the heating coils 7 (22) to 7 (24), 7 (30) to 7 (32), and 7 (38) to 7 (40) corresponding to the induction heating unit 28A. The light display unit 117 (3) corresponding to is turned on with one color (red in this embodiment) indicating that it is an operation target, and corresponds to the induction heating unit 27 </ b> A located below the other heatable region 27. A light display portion 117 (1) corresponding to the heating coils 7 (17) to 7 (19), 7 (25) to 7 (27), and 7 (33) to 7 (35), and below the heatable region 29. Heating coils 7 (4), 7 (5 corresponding to the induction heating unit 29A located , 7 (12), 7 (13) corresponding to the light display unit 117 (5) is lit in the other color (white in this embodiment), the other heating coil 7 (20), which is not energized, 7 (21), 7 (28), 7 (29), 7 (36), 7 (37), 7 (1) -7 (3), 7 (9) -7 (11), 7 (6)- The light display units 117 (2), (4), and (6) corresponding to 7 (8) and 7 (14) to 7 (16) are turned off.

In addition, since the induction heating unit 29A located below the heatable region 29 can be operated by the second heating operation unit 12B, the control unit 6 is disposed in the vicinity of the second heating operation unit 12B. In the heating coil pattern information display section 112 (2), the light display section 116 (5) corresponding to the heating coils 7 (4), 7 (5), 7 (12), and 7 (13) corresponding to the induction heating section 29A. ) In one color (red in this embodiment) indicating that it is an operation target, and heating coils 77 (17) to 7 (7) to 7 (17) to 7 ( 19), 7 (25) to 7 (27), 7 (33) to 7 (35) corresponding to the light display unit 116 (1) and the induction heating unit 28A located below the heatable region 28. Heating coil 7 (22) -7 (24), 7 (30) -7 32) and 7 (38) to 7 (40) corresponding to the light display section 116 (3) are lit in other colors (white in this embodiment) and the other heating coils 7 (20 ), 7 (21), 7 (28), 7 (29), 7 (36), 7 (37), 7 (1) -7 (3), 7 (9) -7 (11), 7 (6) ) To 7 (8) and 7 (14) to 7 (16), the light display units 116 (2), (4), and (6) are turned off.

Similarly, the control unit 6 selects the heating coil pattern PT2 among the heating coil patterns PT1, PT2, PT3, and PT4. Then, among the plurality of heating coils 7, an inverter is provided so that high-frequency power can be supplied to the heating coils 7 located in one or more heatable regions 52, 53, 54 of the selected heating coil pattern PT2. The unit 5 is controlled.
In addition, since the induction heating unit 52A located below the heatable region 52 can be operated by the first heating operation unit 12A, the control unit 6 is arranged in the vicinity of the first operation unit 12A. In the heating coil pattern information display unit 112 (1), the heating coils 7 (1) to 7 (5), 7 (9) to 7 (13), and 7 (17) to 7 (21) corresponding to the induction heating unit 52A. , 7 (25) to 7 (29), and 7 (33) to 7 (37), the light display units 115 (1), (2), (4), and (5) are to be operated. Heating coils 7 (22) to 7 (24) and 7 (30) to 7 corresponding to the induction heating unit 53A that is lit in one color (red in this embodiment) and is located below the other heatable region 53 (32), 7 (38) to 7 (40) corresponding to the light display portion 115 (3) and the heatable region 54 The light display portion 115 (6) corresponding to the heating coils 7 (6) to 7 (8) and 7 (14) to 7 (16) corresponding to the induction heating portion 54A located on the other side is changed to other colors (the present embodiment). Lights up white).

  In addition, since the induction heating unit 53A located below the heatable region 53 can be operated by the third heating operation unit 12C, the control unit 6 is arranged in the vicinity of the third operation unit 12C. In the heating coil pattern information display unit 112 (3), the heating coils 7 (22) to 7 (24), 7 (30) to 7 (32), and 7 (38) to 7 (40) corresponding to the induction heating unit 53A. The light display unit 117 (3) corresponding to is illuminated with one color (red in this embodiment) indicating that it is an operation target, and corresponds to the induction heating unit 52 </ b> A located below the other heatable region 52. Heating coils 7 (1) -7 (5), 7 (9) -7 (13), 7 (17) -7 (21), 7 (25) -7 (29), 7 (33) -7 (37 ) Corresponding to the light display portions 117 (1), (2), (4), (5) and the heatable region 54. The light display unit 117 (6) corresponding to the heating coils 7 (6) to 7 (8) and 7 (14) to 7 (16) corresponding to the induction heating unit 54A located on the other side is changed to other colors (this embodiment). Lights up white).

  In addition, since the induction heating unit 54A located below the heatable region 54 can be operated by the second heating operation unit 12B, the control unit 6 is arranged in the vicinity of the second operation unit 12B. In the heating coil pattern information display unit 112 (2), the light display unit 116 (6) corresponding to the heating coils 7 (6) to 7 (8) and 7 (14) to 7 (16) corresponding to the induction heating unit 54A. Is turned on in one color (red in this embodiment) indicating that it is an operation target, and the heating coils 7 (1) to 7 (5) corresponding to the induction heating unit 52 A located below the other heatable regions 52. ), 7 (9) to 7 (13), 7 (17) to 7 (21), 7 (25) to 7 (29), and 7 (33) to 7 (37). ), (2), (4), (5), and the induction heating unit 53 located below the heatable region 53. The light display section 116 (3) corresponding to the heating coils 7 (22) -7 (24), 7 (30) -7 (32), 7 (38) -7 (40) corresponding to Lights up in white in the embodiment.

Similarly, the control unit 6 selects the heating coil pattern PT3 among the heating coil patterns PT1, PT2, PT3, and PT4. Then, the inverter unit 5 is controlled so as to be able to supply high-frequency power to the heating coil 7 located in one heatable region 56 of the selected heating coil pattern PT3 among the plurality of heating coils 7.

  In addition, since the induction heating unit 56A located below the heatable region 56 can be operated by the second heating operation unit 12B, the control unit 6 is arranged in the vicinity of the second heating operation unit 12B. In the heating coil pattern information display unit 112 (2), all of the light display units 116 (1) to (6) corresponding to the heating coils 7 (1) to 7 (40) corresponding to the induction heating unit 56A are operated. It is lit in one color (red in this embodiment) indicating that it exists.

  Similarly, the control unit 6 selects the heating coil pattern PT4 among the heating coil patterns PT1, PT2, PT3, and PT4. Then, among the plurality of heating coils 7, the inverter unit 5 can supply high-frequency power to the heating coils 7 located in one or more heatable regions 57 and 58 of the selected heating coil pattern PT4. To control.

  Further, since the induction heating unit 57A located below the heatable region 57 can be operated by the first heating operation unit 12A, the control unit 6 is arranged in the vicinity of the first heating operation unit 12A. In the heating coil pattern information display section 112 (1), the heating coils 7 (1) to 7 (4), 7 (9) to 7 (12), and 7 (17) to 7 (20) corresponding to the induction heating section 57A. ), 7 (25) to 7 (28), and 7 (33) to 7 (36), the light display units 115 (1), (2), (4), and (5) are to be operated. The heating coils 7 (5) to 7 (8) and 7 (13) to 7 corresponding to the induction heating unit 58A that is lit with one color (red in this embodiment) and is located below the other heatable region 58 are displayed. 7 (16), 7 (21) to 7 (24), 7 (29) to 7 (32), 7 (37) to 7 (40) Light display unit 115 to (3), turned in the (6) other colors (white in this embodiment).

  In addition, since the induction heating unit 58A located below the heatable region 58 can be operated by the third heating operation unit 12C, the control unit 6 is arranged in the vicinity of the third operation unit 12C. In the heating coil pattern information display unit 112 (3), the heating coils 7 (5) to 7 (8), 7 (13) to 7 (16), and 7 (21) to 7 (24) corresponding to the induction heating unit 58A. , 7 (29) to 7 (32), and 7 (37) to 7 (40), the light display units 117 (3) and (6) are displayed in one color (in this embodiment) indicating that they are operation targets. The heating coils 7 (1) to 7 (4), 7 (9) to 7 (12), and 7 (17) corresponding to the induction heating unit 57 A located below the other heatable regions 57 are lit in red). To 7 (20), 7 (25) to 7 (28), 7 (33) to 7 (36) corresponding to the light display unit 117. 1), (2), (4), turned by (5) other colors (white in this embodiment).

  The user operates the heating operation unit 12A in which the heating coils 7 of the groups 27A to 29A that respectively form the heatable regions 27 to 29 shown in FIG. 4A are set to be input according to the correspondence shown in FIG. Operate each at ~ 12C.

  When the object to be heated 11 is heated in the heatable region 27, the heating is started by the “heating on / off” key 22 of the heating operation unit 12A, and the “output up” key 23 and the “output down” key according to the cooking state. 24, “cooking menu” key 25 and “timer” key 26 are operated.

  When heating the object 11 to be heated in the heatable region 28, heating is started with the “heating on / off” key 22 of the heating operation section 12C, and the “output up” key 23 and “output down” are set in accordance with the cooking situation. ”Key 24,“ cooking menu ”key 25, and“ timer ”key 26 are operated.

Further, when heating the object 11 to be heated in the heatable region 29, heating is started by the “heating on / off” key 22 of the heating operation unit 12B, and the “output up” key 23 and “output down” are set according to the cooking situation. ”Key 24,“ cooking menu ”key 25, and“ timer ”key 26 are operated.

  In addition, the user performs a heating operation in which instructions can be input to the heating coils 7 of the groups 52A to 54A forming the heatable regions 52 to 54 shown in FIG. Each of the units 12A to 12C is operated.

  When the object to be heated 11 is heated in the heatable region 52, heating is started by the “heating on / off” key 22 of the heating operation section 12A, and the “output up” key 23 and the “output down” key are set in accordance with the cooking situation. 24, “cooking menu” key 25 and “timer” key 26 are operated.

  Further, when the object 11 is heated in the heatable region 54, heating is started with the “heating on / off” key 22 of the heating operation unit 12B, and the “output up” key 23 and “output down” are set according to the cooking situation. ”Key 24,“ cooking menu ”key 25, and“ timer ”key 26 are operated.

  When heating the object 11 in the heatable region 53, heating is started with the “heating on / off” key 22 of the heating operation unit 12C, and the “output up” key 23 and “output down” are set according to the cooking situation. ”Key 24,“ cooking menu ”key 25, and“ timer ”key 26 are operated.

  Further, the user operates the heating operation sections 12A to 12A, in which the heating coils 7 of the group 56A forming the heatable region 56 shown in FIG. It operates with one heating operation part of 12C.

  When the object to be heated 11 is heated in the heatable region 56, the heating is started by the “heating on / off” key 22 of the one heating operation section, and the “output up” key 23 and “output down” are set according to the cooking situation. ”Key 24,“ cooking menu ”key 25, and“ timer ”key 26 are operated.

  In addition, the user performs a heating operation in which instructions can be input to the heating coils 7 of the groups 57A and 58A that respectively form the heatable regions 57 and 58 shown in FIG. It operates by two heating operation parts among the parts 12A-12C, respectively.

  When heating the object to be heated 11 in the heatable region 57, heating is started by the “heating on / off” key 22 of one of the two heating operation units, and “output” is set according to the cooking situation. The “up” key 23, “output down” key 24, “cooking menu” key 25, and “timer” key 26 are operated.

  Moreover, when heating the article 11 to be heated in the heatable region 58, the heating is started with the “heating on / off” key 22 of the other heating operation part of the two heating operation parts, and according to the cooking situation. The “output up” key 23, “output down” key 24, “cooking menu” key 25, and “timer” key 26 are operated.

  As described above, when the selection unit 15 is operated to display the optimum heatable area for the cooking menu, the user puts the object to be heated 11 such as a pan or a frying pan on the heatable area on the upper surface 10A of the top plate 10. Then, the heating operation unit that is set to be able to input an instruction in the correspondence relationship shown in FIG. 12 is visually recognized on the heating coil pattern information display unit 112 and the corresponding heating operation unit 12A, 12B, 12C is displayed. The “heating on / off” key 22 is operated to start heating the article 11 to be heated.

The control unit 6 controls the inverter unit 5 so that the nine heating coils 7 of the group 27A forming the heatable region 27 shown in FIG. 4 (a) start heating substantially simultaneously and are heated substantially simultaneously. Adjust the amount and stop heating substantially simultaneously.

  The nine heating coils 7 of the group 28A forming the heatable region 28 start heating substantially simultaneously, adjust the amount of heating substantially simultaneously, and stop heating substantially simultaneously.

  The four heating coils 7 of the group 29A forming the heatable region 29 start heating substantially simultaneously, adjust the heating amount substantially simultaneously, and stop heating substantially simultaneously.

  When the main power switch 47 is turned on, the control unit 6 reads the heating coil pattern PT1 from the information storage unit 14 as the initial heating coil pattern, but the heating coil pattern used when the main power switch 47 was turned off the last time is used as the initial coil. A pattern may be set.

  When the main power switch 47 is turned on, the control unit 6 reads the initial heating coil pattern from the information storage unit 14 and controls the inverter circuit 4 and the heating coil 7 according to the initial coil pattern.

  Thereby, the heating coil pattern including the heatable area | region with high use frequency can be set to an initial heating coil pattern, and the convenience of the electromagnetic cooker 1 can be improved without the user having to select a heating coil pattern. Can do.

  FIG. 13: is a wave form diagram of the electric current which flows into each of the some heating coil which forms the group at the time of heating and stopping the iron pan of the electromagnetic cooker in the 1st Embodiment of this invention.

  In FIG. 13, a group located in the heatable region 27 when an iron pan is placed as the object to be heated 11 in the heatable region 27 of the upper surface 10A of the top plate 10 and heated, and the heating is stopped. Currents flowing through the heating coils 7 (17) to 7 (19), 7 (25) to 7 (27), and 7 (33) to 7 (35), which are the plurality of heating coils 7 forming 27A (FIG. 4), respectively. The waveforms of i (17) to i (19), i (25) to i (27), and i (33) to 7 (35) are shown.

  FIG. 14 is a waveform diagram of currents flowing through each of the plurality of heating coils forming a group when the aluminum pan of the electromagnetic cooking device according to the first embodiment of the present invention is heated and stopped.

  In FIG. 14, an aluminum pot is placed as the article to be heated 11 in the heatable region 29 (FIG. 4) of the top surface 10A of the top plate 10, heated, and the heatable region 29 when the heating is stopped. The currents i (4) and i (5) flowing through the heating coils 7 (4), 7 (5), 7 (12), and 7 (13), which are the plurality of heating coils 7 that form the group 29A positioned in the inside, respectively , I (12), i (13) waveforms.

  As shown in FIG. 13, the inverter unit 5 (FIG. 2) configured by the inverter circuit 4 supplies currents having the same frequency and the same phase to the plurality of heating coils 7 located in the heatable region 27.

  Further, the inverter unit 5 starts flowing current through the plurality of heating coils 7 located in the heatable region 27 substantially simultaneously at the start of heating, and stops the current substantially simultaneously at the stop of heating. .

  As shown in FIG. 14, the inverter unit 5 supplies currents having the same frequency and the same phase to the plurality of heating coils 7 located in the heatable region 29.

  Further, the inverter unit 5 starts to cause current to flow through the plurality of heating coils 7 located in the heatable region 29 substantially simultaneously when heating is started, and stops current substantially simultaneously when heating is stopped. .

  The control unit 6 controls the inverter unit 5 according to the operation of the heating operation unit 12 by the user and also according to the material / shape of the object to be heated 11, and flows to the plurality of heating coils 7 in the heatable region 27. The current and the current flowing through the plurality of heating coils 7 in the heatable region 29 can be set independently of each other at the frequency, supply time point, and stop time point.

  The control unit 6 includes a plurality of heating coils 7 forming a group 28A located in the heatable region 28 shown in FIG. 4A and a group 52A located in the heatable region 52 shown in FIG. A plurality of heating coils 7 forming a group 54A positioned in the plurality of heating coils 7 and 54 forming the group 53A positioned in the plurality of heating coils 7 and 53 to be formed, and heating as shown in FIG. Similarly, a current is supplied to the plurality of heating coils 7 forming the group 57A located in the region 57 and the plurality of heating coils 7 forming the group 58A located in the region 58.

  As described above, the inverter unit 5 starts flowing current substantially simultaneously at the start of heating to the plurality of heating coils 7 located in one heatable region, and substantially simultaneously at the time of stopping heating. To stop.

  The control unit 6 controls the inverter unit 5 according to the operation of the heating operation unit 12 by the user and also according to the material / shape of the object to be heated 11. The current flowing and the current flowing through the plurality of heating coils 7 in the other heatable region can be set independently of each other at the frequency, supply time point, and stop time point.

  Thereby, it becomes unnecessary for a user to operate each of the plurality of heating coils 7, and the number of operations of the electromagnetic cooking device 1 can be reduced.

  Since the plurality of heating coils 7 located in the non-heatable region 51 shown in FIG. 4A cannot supply high-frequency power, the non-heated pan, lid, knife, or other metal object cannot be heated. 51.

  Since the heatable area can be visually recognized by the user with the induction heating unit display means 16 that surrounds the heatable area and is displayed with light, the user can clearly see where to place the metal object that is not heated, Usability and safety of the electromagnetic cooking device 1 can be improved.

Further, when the inverter circuit 4 supplies current to the heating coil 7 in at least one heatable region, the control unit 6 does not change the heating coil pattern even if the user operates the selection unit 15. The selection unit 15 is invalidated.
Thereby, it becomes possible to prevent the cooking failure and the pan from being baked empty and becoming unsafe.

  As described above, in the present embodiment, the electromagnetic cooking device 1 cannot supply the heating coil controlled by the control unit 6 and the high-frequency power so that the high-frequency power can be supplied. It becomes possible for the user to select a combination with the heating coil controlled by the control unit 6 by the selection unit 15 so that the position, size, and quantity of the heatable region can be adjusted. it can.

Further, in the present embodiment, the user adjusts at least one of the position, size, and quantity of the heatable region, thereby heating the object to be heated 11 at an easy-to-use position, or the object to be heated 11 to be used. Can be heated according to the size of the object to be heated, or can be heated according to the number of objects to be heated 11 to be used.

  Furthermore, by adjusting at least one of the position, size, and quantity of the non-heatable area by the user, the metal object that is not heated is retreated to the non-heatable area adjusted by the user. On the other hand, it is possible to prevent the metal object from being heated, and the usability and safety of the electromagnetic cooking device 1 can be improved.

  In the heating coil pattern PT3 shown in FIG. 4C, it is controlled by the inverter unit 5 so as to be able to supply high-frequency power to all the heating coils 7, and is almost entirely on the upper surface 10A of the top plate 10. One large heatable region 56 is formed.

  Thereby, the electromagnetic cooker 1 can uniformly heat the bottom surface of the article 11 to be heated even in a cooking menu that requires a large heating area, such as teppanyaki, and can improve cooking performance.

  The control unit 6 may enable the selection unit 15 only for a predetermined time after the main power switch 47 is turned on, and disable the operation unit 15 after the predetermined time has elapsed. Thereby, it is possible not only to prevent the user from operating the selection unit 15 by mistake during the heating of the article 11 to be heated but also to change the heatable region, and also to prevent the metal object that is not heated from being heated. Thus, the usability and safety of the electromagnetic cooking device 1 can be improved.

  FIG. 15 is a top view of another electromagnetic cooker 1A of the electromagnetic cooker according to the first embodiment of the present invention. In FIG. 15, the same parts as those of the electromagnetic cooking device 1 shown in FIG.

  In the electromagnetic cooker 1 shown in FIG. 3, the induction heating unit display means 16 is a part between the plurality of heating coils 7, and the heatable regions 27 to 29 and 52 to 52 shown in FIGS. 4 (a) to 4 (d). 54 and 56 to 58 are provided only at the portions surrounding them, and are not provided at other portions.

  In the electromagnetic cooker 1A shown in FIG. 15, the induction heating part display means 16 is provided in the part which surrounds all the some heating coils 7, respectively.

  Thereby, it is possible to increase the number of heating coil patterns that can be stored in the information storage unit 14, and the choice of the position, size, and quantity of the heatable region on the top plate 10 is increased, and the electromagnetic cooker is more convenient to use. 1A is possible.

  Also in this case, as shown in FIG. 16, by increasing the quantity of the light display units 115 to 117 in the heating coil pattern information display unit 112 in accordance with the induction heating unit display unit 16, each operation unit can select which heating unit. It is possible to display whether an instruction can be input to the heating coil corresponding to the induction heating unit located below the possible area.

  FIG. 17 is a top view of still another electromagnetic cooker 1B of the electromagnetic cooker according to the first embodiment of the present invention. In FIG. 17, the same reference numerals are given to the same portions as those of the electromagnetic cooker 1 shown in FIG. 3 and FIGS. 4 (a) to 4 (d), and description thereof is omitted.

  An electromagnetic cooker 1B shown in FIG. 17 has six heating coils 77 (1) to 77 (6) instead of the 40 heating coils 7 (1) to 7 (40) of the electromagnetic cooker 1 shown in FIG. Prepare.

FIG. 18 (a) is a diagram showing a heating coil pattern PT11 stored in the information storage unit of still another electromagnetic cooker 1B of the electromagnetic cooker according to the first embodiment of the present invention, and FIG. The figure which shows heating coil pattern PT12 which the information storage part of the other electromagnetic cooker 1B of the electromagnetic cooker in 1 embodiment memorize | stores, (c) is an electromagnetic cooker in the 1st Embodiment of this invention. The figure which shows heating coil pattern PT13 which the information storage part of other electromagnetic cooker 1B memorize | stores, (d) is the information storage of the other electromagnetic cooker 1B of the electromagnetic cooker in the 1st Embodiment of this invention. It is a figure which shows heating coil pattern PT14 which a part memorize | stores.

  A heating coil pattern PT11 shown in FIG. 18A defines groups 101A to 104A including at least one of a plurality of heating coils 77 (1) to 77 (6), and a heatable region 101 on the upper surface of the top plate 10, 102 and 103 and the non-heatable area 104 are defined.

  The group 101A is composed of heating coils 77 (4). The group 102A is constituted by the heating coil 77 (6). The group 103A includes the heating coil 77 (2). The group 104A is composed of 77 (1), 77 (3), and 77 (5).

  The heating coils 77 (4), 77 (6), and 77 (2) of the groups 101A, 102A, and 103A are controlled by the inverter unit 5 so that high-frequency power can be supplied, and the upper surface of the top plate 10 is controlled. Heatable regions 101, 102, and 103 are respectively formed on the substrate.

  The plurality of heating coils of the group 104 </ b> A are controlled by the inverter unit 5 so that the high-frequency power cannot be supplied, and the non-heatable region 104 is formed on the top surface of the top plate 10.

  A heating coil pattern PT12 shown in FIG. 18B defines groups 105A to 107A including at least one of a plurality of heating coils 77 (1) to 77 (6), and a heatable region 105 on the upper surface of the top plate 10, 106 and 107 are defined.

  The group 105A includes heating coils 77 (1), 77 (2), 77 (4), and 77 (5). The group 106A is constituted by the heating coil 77 (6). The group 107A is constituted by the heating coil 77 (3).

  The plurality of heating coils of the group 105 </ b> A are controlled by the inverter unit 5 so as to be able to supply high-frequency power to form a heatable region 105 on the top surface of the top plate 10. The heating coil 77 (6) of the group 106 </ b> A is controlled by the inverter unit 5 to form a heatable region 106 on the top surface of the top plate 10 so that high-frequency power can be supplied.

  The heating coil 77 (3) of the group 107 </ b> A is controlled by the inverter unit 5 so as to be able to supply high-frequency power, and the heatable region 107 is formed on the upper surface of the top plate 10.

  A heating coil pattern PT13 shown in FIG. 18C defines a group 108A composed of all of the heating coils 77 (1) to 77 (6), and defines a heatable region 108 on the top surface of the top plate 10.

  A plurality of heating coils of the group 108A are controlled by the inverter unit 5 so as to be able to supply high-frequency power to form one large heatable region 108 configured to heat an object to be heated. Yes.

The heating coil pattern PT14 shown in FIG. 18D includes a group 109A composed of heating coils 77 (1), 77 (2), 77 (4), and 77 (5), and heating coils 77 (3) and 77 ( 6
) And the heatable regions 109 and 110 are defined on the upper surface of the top plate 10.

  The plurality of heating coils of the group 109 </ b> A are controlled by the inverter unit 5 so as to be able to supply high-frequency power to form a heatable region 109 configured to heat an object to be heated.

  The plurality of heating coils of the group 110 </ b> A are controlled by the inverter unit 5 to form a heatable region 110 so that high-frequency power can be supplied. As the electromagnetic cooker 1 is operated by the user, the control unit 6 reads one heating coil pattern from the heating coil patterns PT11 to PT14 from the information storage unit 14 and reads the heating coil. The inverter unit 5 is controlled according to the pattern, and the heatable regions 101 to 103, 105 to 110 and the unheatable region 104 are formed by the heating coils 77 (1) to 77 (6).

  Moreover, when the user operates the heating operation units 12A to 12D, the control unit 6 controls the inverter unit 5 to start heating, stop heating, and adjust the heating amount of the heatable regions 101 to 103 and 105 to 110. Do.

  The electromagnetic cooker 1B illustrated in FIG. 17 can reduce the number of the plurality of heating coils and the plurality of inverter circuits 4 as compared with the electromagnetic cooker 1 illustrated in FIG. be able to.

  As described above, the electromagnetic cooker according to the present invention has at least one of the position, size, and quantity of the portion that induction-heats the heated object in accordance with at least one of the position, size, and quantity of the heated object. By adjusting the temperature, the user can not only efficiently heat the object to be heated, but also the user can give instructions to turn on and off the heating and adjust the heating power to the required heating coil with easy-to-understand display and simple operation. Therefore, it is effective for cooking appliances used not only by ordinary homes and offices but also by restaurants and other professionals.

6 Control part 7 Heating coil 10 Top plate 11 Object to be heated 12A, 12B, 12C Heating operation part 14 Information storage part 15 Selection part (selection means)
48 Operation panel 112 Heating coil pattern information display unit 115, 116, 117 Optical display unit (optical display means)

Claims (3)

A top plate for placing an object to be heated, a plurality of heating coils arranged in substantially the same plane, a control unit for controlling the heating coil, a plurality of heating operation units for inputting instructions to the control unit, Information for selecting the heating coil that can be energized and the heating coil that cannot be energized among the plurality of heating coils in order to adjust at least one of the position, size, and quantity of the induction heating unit; And the information memory | storage part which memorize | stored the heating coil pattern information which consists of the information which selects each said heating operation part which operates the said heating coil which can be supplied with electricity corresponding to each said induction heating part, and the plurality memorize | stored in the said information storage part Selection means for selecting one of the heating coil pattern information from the heating coil pattern information, and the heating operation unit can be energized before any of the induction heating units can be energized. While providing the heating coil pattern information display part which displays whether a heating coil is operated, the said control part is energized corresponding to each said induction heating part according to one heating coil pattern information selected by the said selection means The heating operation or stop of the heating coil that can be performed is performed substantially simultaneously based on an instruction input to each heating operation unit, and any one of the induction heating units of two or more induction heating units is displayed on the heating coil pattern information display unit. An electromagnetic cooker that displays whether to operate the heating coil that can be energized corresponding to
The heating coil pattern information display unit includes a plurality of light display means, and the control unit causes a part of the light display means to emit light according to one heating coil pattern information selected by the selection means, and An electromagnetic cooker that displays whether to operate the heating coil that can be energized corresponding to which induction heating unit among the two or more induction heating units by turning off the others . The heating coil pattern information display unit includes an outer peripheral frame, and the shape of the outer peripheral frame is similar to the shape of the top plate, so that any induction heating unit among two or more induction heating units can be energized. The electromagnetic cooker according to claim 1 , further displaying in an easy-to-understand manner whether to operate the heating coil. The induction heating unit display means for displaying the induction heating unit on the top plate by causing at least a part to emit light is provided under the top plate, and the heating coil pattern information further includes the induction heating unit for displaying each induction heating unit. 3. The electromagnetic cooking according to claim 1, further comprising light emission information of a display unit, wherein the control unit causes the induction heating unit display unit to emit light according to one heating coil pattern information selected by the selection unit. vessel.

Images