JP5222522B2 - Induction heating cooker - Google Patents

Description

  The present invention relates to an induction heating cooker that heats a cooking container by operating an electrostatic switch provided on a glass top plate.

2. Description of the Related Art In recent years, induction cooking devices that induction-heat a cooking container such as a pan with a heating coil have been widely used. This induction heating cooker includes a plurality of switches to which predetermined functions such as heating off / on and heating power increase / decrease are assigned in order to control the heating coil based on a user's instruction. Patent Document 1 discloses an induction heating cooker that includes an electrostatic switch on a top plate and controls the heating of each heating unit by operating the electrostatic switch from the top plate. This electrostatic switch is electrically connected to a control unit provided below the top plate via a conductive terminal. When a finger of the user touches the electrostatic switch, the voltage of the switch is changed, the control unit determines that the switch based on the change in the voltage is pressed. Since this electrostatic switch has no irregularities, it can be cleaned easily by wiping it quickly.

Japanese Patent No. 3894078

However, the induction cooker also electrostatic switch by pressing, since the shape does not change, not obtained a sense of the user depressed. For this reason, for the user, electromagnetic cooker there was a problem that it is difficult to know whether or not accept the press operation. In addition, even if you accidentally press the next to the switch by mistake, there is also a problem that the user is unlikely to notice the erroneous operation. These problems can impair cooking performance.

In addition, the original electrostatic switch, Bayoi press a small force compared to the tact switch, etc., because it does not get the feeling that depressed the user, would then press in vain to put the force, is poor operability It was a thing.

The present invention is intended to solve the above problems, when the user has pressed the electrostatic switches, aims to provide an induction heating cooker can feel close to sense depressed (click feeling) And

An induction heating apparatus according to the present invention is provided with a top plate on which a cooking vessel is placed, a heating coil that generates an induction magnetic field and induction-heats the cooking vessel, and is provided on the lower surface of the top plate, and each is assigned a predetermined function. an operation unit including a plurality of electrostatic switches, a plurality of first light source for lighting each multiple electrostatic switch provided below the operating portion, the electrostatic switch function input by being pressed Correspondingly, the heating control unit for supplying a high-frequency current to heating coil, when the electrostatic switch on the operation unit is pressed, a predetermined time from the electrostatic switch is pressed, changing the display state of the electrostatic switch And a display control unit that controls the first light source.

Display control unit, when the electrostatic switch during lighting is pressed, the off the first light source corresponding to the electrostatic switch is pressed, after a predetermined time has elapsed from the electrostatic switch is pressed and turned off it may control the first light source to re-light the first light source.

Display control unit, when the electrostatic switch during lighting is pressed to increase the light amount of the light source corresponding to the electrostatic switch is pressed, after a predetermined time has elapsed from the electrostatic switch is pressed, increased amount of light The light source may be controlled to restore the original value.

Light amount display control unit, when the electrostatic switch during lighting is pressed, which reduces the amount of light sources corresponding to the electrostatic switch is pressed, after a predetermined time has elapsed from the electrostatic switch is pressed, reduced The light source may be controlled to restore the original value.

The display control unit, electrostatic switches in the lighting of a predetermined time since the press, flashing light source corresponding to the electrostatic switch is pressed, after a predetermined time has elapsed electrostatic switches from being pressed, and allowed to flash light source The light source may be controlled so as to return to ON.

The induction heating device, respectively lit plurality of electrostatic switch provided below the operating portion, the second further comprising a light source for irradiating light of a color different from the first light source, the display control unit, the first when the electrostatic switch during lighting is pressed by the light source, and turns off the first light source corresponding to the electrostatic switch is pressed, turns on the second light source corresponding to the electrostatic switch is pressed, static after a predetermined time photoelectric switch from being pressed, it turns off the second light source is turned on, may control the first and second light sources so as to re-light the first light source is turned off.

The induction cooking device is provided with a second light source different from the first light source, which is provided below the operation unit and lights each of the plurality of electrostatic switches, and light emitted by the first and second light sources, respectively. located further have a light guiding portion for guiding the the light guide portion guides the light second light source is irradiated to a position where the first light source is slightly shifted from the position where the light to be irradiated is directed, the display control parts, when the electrostatic switches in the lighting by the first light source is pressed, the second light source turns off the first light source corresponding to the electrostatic switch is pressed, corresponding to the electrostatic switch that is pressed the lights, after a predetermined time has elapsed electrostatic switches from being pressed, turns off the second light source is turned on, controls the first and second light sources so as to re-light the first light source is turned off May be.

  The predetermined time may be between 0.1 second and 2 seconds.

Another induction heating device according to the present invention includes a top plate on which a cooking vessel is placed, a heating coil that generates an induction magnetic field and induction-heats the cooking vessel, and a lower surface of the top plate, each having a predetermined function. an operation unit including a plurality of switches that are assigned, a plurality of light sources for lighting each multiple electrostatic switch provided below the operating portion in accordance with the electrostatic switch function input by being pressed, a heating control section for supplying a high-frequency current to heating coil, when the electrostatic switch on the operation unit is pressed, when the electrostatic switch is pressed, changing the display state of an electrostatic switch being pressed, when the user releases the finger from the electrostatic switch, and having a display control unit for controlling the light source to return before changing the display state of the electrostatic switches.

Display control unit, when the electrostatic switch is pressed, so as to turn off the light source corresponding to the electrostatic switch is pressed, when the user releases the finger from the electrostatic switch to relight the unlit light source The light source may be controlled.

Display control unit, when the electrostatic switch is pressed to increase the light amount of the light source corresponding to the electrostatic switch is pressed, when the user releases the finger from the electrostatic switch, based on the increased amount of light The light source may be controlled to return.

Display control unit, when the electrostatic switch is pressed, reduces the amount of light sources corresponding to the electrostatic switch is pressed, when the user releases the finger from the electrostatic switch, based on the reduced amount of light The light source may be controlled to return.

Display control unit for a predetermined time period from the electrostatic switch is pressed, flashing light source corresponding to the electrostatic switch is pressed, when the user releases the finger from the electrostatic switch, the lighting was allowed to blink the light source The light source may be controlled to return.

The light source includes a second light source for emitting color different from the first light source and the first light source, the display control unit, when the electrostatic switches in the lighting by the first light source is pressed, it is pressed It turns off the first light source corresponding to the electrostatic switch, turns on the second light source corresponding to the electrostatic switch is pressed, when the user releases the finger from the electrostatic switch, a second that is lit The light source may be controlled so that the light source is turned off and the first light source that is turned off is turned on again.

The induction heating cooker further includes a light guide that guides light emitted from the light source to a predetermined position, the light source includes a first light source and a second light source, and the light guide includes a second light source. the light source irradiates the first light source is guided to a position shifted slightly from the position where the light is guided to the irradiation, the display control unit, when the electrostatic switch during lighting is pressed by the first light source, press It turns off the first light source corresponding to the electrostatic switch that is, turns on the second light source corresponding to the electrostatic switch is pressed, when the user releases the finger from the electrostatic switch, first is lit The light source may be controlled so that the second light source is turned off and the turned off first light source is turned on again.

The induction heating cooker may further include a sound output unit for outputting sound, control unit, when the electrostatic switch on the operation unit is pressed, when the electrostatic switch is pressed, it outputs a voice As such, the audio output unit may be controlled.

According to the induction heating cooker of the present invention, when the user has pressed the electrostatic switches, it is possible to get a sense close to sense depressed, there is no erroneous operation, thereby improving operability.

  Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, the same constituent elements are given the same numbers.

Embodiment 1
[Configuration of induction heating cooker]
The structure of the induction heating cooking appliance by Embodiment 1 of this invention is shown in FIG. The induction heating cooker of this embodiment is made of an electrically insulating material such as glass, and transmits a light-transmitting crystallized ceramic top plate 1, a heating coil 7 provided below the top plate 1, and a heating coil 7. And a control unit 8 provided below. The heating coil 7 heats the cooking container 5 placed on the top plate 1 by induction heating.

The induction heating cooker of the present embodiment further includes an operation unit 4 provided in a part of the top plate 1 and a light source 6 provided below the operation unit 4. The operation unit 4 includes a plurality of electrostatic switches. Each switch includes an electrode 41 provided on the lower surface of the top plate 1 and a part of the top plate 1 facing the electrode 41. The electrode 41 is formed of a conductive material such as copper or carbon. When the user touches the upper surface of the top plate 1 facing the electrode 41 with a finger, a capacitor is formed by the user's finger, the top plate 1 and the electrode 41 and is grounded via the human body. Decreases. Thus, the control unit 8, it can be determined that the switch has been pressed. Various functions of the induction heating cooker are assigned to each switch.

  The light source 6 irradiates each of the plurality of switches of the operation unit 4. The light source 6 is a light emitting diode, for example. Although only one light source is shown in FIG. 1 for convenience of explanation, actually, one light source is provided for each switch so that the display state can be controlled for each switch.

The control unit 8 is electrically connected to each electrode 41 of the operation unit 4 through a conductive terminal or the like. The control unit 8 includes a heating control unit 8 a and a switch display control unit 8 b that changes the display state of the switch by controlling the light source 6. The heating control unit 8a controls the heating power amount of the heating coil 7 by supplying a high-frequency current to the heating coil 7 based on the function input through the switch. Specifically, when the user touches the upper surface of the top plate 1 facing the electrode 41 with a finger to heat the cooking vessel 5 and the voltage of the electrode 41 drops below a predetermined voltage, the heating control unit 8a switches There it is determined to have been pressed, it controls the heating coil 7 based on the function assigned to the switch.

  FIG. 2 shows a top view of the top plate 1. On the upper surface or the lower surface of the top plate 1, at least one (two in the present embodiment) heating unit 2 indicating the place where the cooking container 5 is placed is displayed by printing. Each of the heating coils 7 is disposed below the heating unit 2. The display unit 3 is provided on the front side (user side) of the heating unit 2. The display part 3 displays the magnitude | size of the output of the heating coil 7, the remaining time of a timer, the symbol for identifying a cooking menu, etc. The cooking menu is, for example, fried food, kettle, and cooked rice. The operation unit 4 is provided on the front side (user side) of the display unit 3 so as to correspond to the heating unit 2. The operation unit 4 includes a plurality of switches 4a to 4e.

In the operation unit 4, characters and symbols for identifying functions assigned to the switches 4 a to 4 e and outer frames of the switches 4 a to 4 e indicating areas to be pressed by the user are emitted by the light source 6. Specifically, the characters, symbols, and outer frame are cut out in advance from the electrodes 41 constituting the switches 4a to 4e. When the light source 6 irradiates the switches 4 a to 4 e from below, the light emitted from the light source 6 passes through the cut out symbols and characters, the outer frame portion, and the top plate 1. Accordingly, the user can recognize the functions assigned to the switches 4a to 4e and the respective areas of the switches 4a to 4e. For example, the electrode of the switch 4e has the characters “heated off / on” and the outer frame cut out. When the light source 6 irradiates the switch 4e from below, the light radiated from the light source 6 passes through the cut-out character and outer frame portion of the electrode of the switch 4e, and the top plate 1. As a result, the user looks at the switch 4e (the characters “out of heating / on” and the outer frame) and visually recognizes that the switch 4e is a switch on / off switch assigned with a function for controlling the start and end of cooking. Can be recognized. If the light source 6 is not illuminated, characters, symbols, and outer frames are not displayed, and the user cannot visually recognize the switch.

[Operation of induction heating cooker]
The basic operation of the induction heating cooker will be described. When the user inputs heating start, heating power setting, and the like from the switches 4a to 4e, the heating control unit 8a supplies a high-frequency current to the heating coil 7 based on the input. When a high frequency current is supplied to the heating coil 7, an induction magnetic field is generated from the heating coil 7, and the cooking vessel 5 placed on the top plate 1 is induction heated.

[Induction heating cooker switch display]
The induction heating cooker of this embodiment has one of the features in the switch display control part 8b which changes the display state of a switch by controlling the light source 6. FIG. Control of the light source for the switch in the operation unit 4 of the induction heating cooker of the present embodiment will be described with reference to FIG. FIG. 3 is a flowchart showing light source control processing by the induction heating cooker according to the first embodiment of the present invention. Switch the display control unit 8b, the switch in the lighting to determine whether it has been pressed (S1). Specifically, switch the voltage of the electrode 41 of the the depression switch is reduced, the voltage of the switch electrode 41 determines whether or not falls below a predetermined voltage. While the switch is determined not to be pressed, the process returns to step S1. When the switch is determined to have been pressed turns off the light source 6 which corresponds to the switch that is pressed (S2), it starts a timer (S3). When the light source 6 is turned off, the characters and symbols of the corresponding switch and the display of the outer frame disappear.

After a predetermined time has elapsed since the switch is pressed (Yes in S4), and turns on the light source 6 which has been turned off again (S5). As a result, the disappeared switch characters, symbols and outer frame are displayed again.

Therefore, the user upon pressing the switch, since the characters and symbols and the outer frame of the switch lit disappears for a predetermined time, it is possible to get a sense close to sense (click feeling) that down the switch. The predetermined time is preferably set to 0.1 second to 2 seconds. If the predetermined time is too short, the user will not notice that the characters have disappeared, and if the predetermined time is too long, the user will misunderstand that the cooking device has been broken.

Induction heating cooker of the present embodiment, when pressing the switch, the display of the predetermined time the switch turns off, the user can recognize that the switch is pressed. For this reason, even if you accidentally press the next to the switch by mistake, easy to notice the erroneous operation. For example, during the heating the cooking vessel, going to reduce the output of the heating coil 7, a switch to increase the output of the next, even if you happen to press, before anything inside the cooking container will spill Spray, Since the user is aware of an erroneous operation and can respond such as reducing the output, the possibility of failure in cooking is reduced. Further, since the can visually confirm whether the switch of the press has been accepted to the induction heating cooker, or down longer than necessary, it is eliminated or strongly pressed. This improves the operability of the switch.

[Modification]
The switch display control unit 8b in the present embodiment, the switch a predetermined time after the press is has been controlling the light source 6 to turn off the display of characters and symbols and the outer frame of switches pressed, characters and symbols It may be controlled to delete only the outer frame while being displayed, or may be controlled to delete only characters and symbols while being displayed.

Or, the switch display control unit 8b in the present embodiment, when the switch during lighting is pressed, turns off the light source corresponding to the switch that is pressed, after a predetermined time has elapsed from the switch is pressed, it was extinguished Although light source was on again, when the switch during lighting is pressed to increase the quantity of light of the light source corresponding to the switch that is pressed, back it switches from being pressed after a predetermined time, based on the amount of light of the light source Also good. Conversely, when the switch during lighting is pressed, to reduce the intensity of the light source corresponding to the switch that is pressed, after a predetermined time has elapsed from the switch is pressed, it may return the light intensity of the light source based on.

The switch display control unit 8b in the present embodiment, the switch a predetermined time after the press is, turns off the light source corresponding to the pressed has been switched, after a predetermined time has elapsed since the switch is pressed, was off the light source While lit again, switch a predetermined time after the press is to blink the light source corresponding to the pressed has been switched, after a predetermined time has elapsed since the switch is pressed, may return light to the lighting.

The switch display control unit 8b in the present embodiment, after a predetermined time has elapsed since the switch is pressed, has been turning on the light source which has been turned off again, it turns off the light source only while the switch is pressed, the user When the finger is released from the switch, the light source that was turned off may be turned on again. Further, the switch increases the intensity of the light source only while being pressed, when the user releases the finger from the switch, the light quantity may be returned to the original that increased. Conversely, the switch reduces the intensity of the light source only while being pressed, when the user releases the finger from the switch, the light quantity may be returned to the original with reduced. Further, the switch to blink the light source only while being pressed, when the user releases the finger from the switch, may return light to the lighting.

The control unit 8 in the present embodiment, when the predetermined time from the switch is pressed during lighting, has been off the light source corresponding to the pressed by a switch, the switch is pressed, an audio output unit (Fig. 1 Voice may be output by the broken line 30). Further, with the above light source control, when the switch is pressed, may output the audio by the audio output unit 30.

Embodiment 2
In this embodiment, the switch a predetermined time after the press is indicative of a configuration of the induction cooking device display color switch is changed.

[Configuration of induction heating cooker]
The structure of the induction heating cooking appliance by Embodiment 2 of this invention is shown in FIG. The induction heating cooker according to this embodiment includes two light sources 61 and 62 for one switch. FIG. 4 shows the configuration of the light source for one switch for convenience of explanation.

  The induction heating cooker of this embodiment has two light sources (the 1st light source 61 and the 2nd light source 62) for every switch under the operation part 4. FIG. The first light source 61 and the second light source 62 are light sources that emit different colors.

  Since the configuration of the induction heating cooker according to the present embodiment is the same as that of the first embodiment except for the first light source 61 and the second light source 62, description thereof will be omitted.

[Induction heating cooker switch display]
In the induction cooking device of the present embodiment, the switch display control unit 8b turns on the switch by the first light source 61 while waiting for an operation by the user. Thereafter, when the switch is pressed by the user turns off the first light source 61 corresponding to the switch, the second light source 62 illuminates, after a predetermined time has elapsed from the switch is pressed, the second light source 62 is turned off and the first light source 61 is turned on. Therefore, the user upon pressing the switch, since the color of the characters and symbols and the outer frame of the switch is changed by a predetermined time, it is possible to get a sense close to sense (click feeling) that down the switch. The predetermined time is preferably set to 0.1 second to 2 seconds. If the predetermined time is too short, the user will not notice that the characters have disappeared, and if the predetermined time is too long, the user will misunderstand that the cooking device has been broken.

The switch display control unit 8b in the present embodiment, after a predetermined time has elapsed since the switch is pressed, the second light source 62 is turned off, although light the first light source 61 again, the switch is pressed The second light source 62 may be turned on only during the interval, and when the user lifts his / her finger from the switch, the second light source 62 may be turned off and the first light source 61 may be turned on again.

Incidentally, with the above light source control of the present embodiment, when the switch is pressed, may output the audio by the audio output unit (dashed line 30 in FIG. 1).

Embodiment 3
In the present embodiment, when the switch is pressed, shows the configuration of the induction cooking device is displayed as switch is actually depressed.

[Configuration of induction heating cooker]
The structure of the induction heating cooking appliance by Embodiment 3 of this invention is shown in FIG. The induction cooking device according to the present embodiment includes two light sources 63 and 64 and one light guide 9 for one switch. FIG. 4 shows the configuration of the light source for one switch for convenience of explanation.

  The induction heating cooker of this embodiment has two light sources (first light source 63 and second light source 64) for each switch below the operation unit 4, and between the operation unit 4 and the light sources 63, 64. One light guide 9 is provided for one switch. The first light source 63 and the second light source 64 may be light sources that emit the same color, or may be light sources that emit different colors. The light guide unit 9 is a resin block in which a portion where light is to be transmitted is cut out in the vertical direction.

  FIG. 6A shows a top view of the light guide unit 9. Regions 10 and 11 are upper surface portions of holes that are cut out in the vertical direction to allow light from the light sources 63 and 64 to pass therethrough. The region 10 is a region that transmits light from the first light source 63, and the region 11 is a region that transmits light from the second light source 64. The region 11 is arranged to be shifted to the lower right from the region 10. When the first light source 63 irradiates the switch, the light emitted from the first light source 63 passes through the region 10 through a hole cut out downward from the region 10, and the region 10 emits light. When the second light source 64 irradiates the switch, the light emitted from the second light source 64 passes through the region 11 through the hole cut out downward from the region 11, and the region 11 emits light.

FIG. 6B shows the switch 4d viewed from above the top plate 1. When the first light source 63 irradiates the switch, the light emitted from the first light source 63 passes through the region 10 of the light guide unit 9, the characters and outer frame portions cut out from the electrodes, and the top plate. As a result, the user can recognize the switch (character “menu” and outer frame) of the solid line A. Further, when the second light source 64 irradiates the switch, the light emitted from the second light source 64 passes through the region 11 of the light guide unit 9, the characters and outer frame portions cut out from the electrodes, and the top plate. Thereby, the user can recognize the switch (character “menu” and outer frame) of the broken line B. By shifting the display position of the switch in this way, it is expressed that the switch has been pressed .

  Since the configuration of the induction heating cooker according to the present embodiment is the same as that of the first embodiment except for the first light source 63, the second light source 64, and the light guide unit 9, the description thereof is omitted.

[Induction heating cooker switch display]
Control of the light source for the switch in the operation unit 4 of the induction heating cooker of the present embodiment will be described with reference to FIG. FIG. 7 is a flowchart showing light source control processing by the induction heating cooker according to the third embodiment of the present invention. The switch display control unit 8 b turns on the switch by the first light source 63. Thereafter, the switch by the user to determine whether it has been pressed (S1). Specifically, switch the voltage of the electrode 41 of the the depression switch is reduced, the voltage of the switch electrode 41 determines whether or not falls below a predetermined voltage. While the switch is determined not to be pressed, the process returns to step S1. When the switch is determined to have been pressed turns off the first light source 63 corresponding to the switch that is pressed (S2A), and turns on the second light source 64 corresponding to the pressed by a switch (S2B), the timer Start (S3). When the first light source 63 is turned off and the second light source 64 is turned on, the display of the characters, symbols, and outer frame of the corresponding switch moves from the region 10 to the region 11. For example, as shown in FIG. 6B, it appears to the user that the switch of the solid line A has moved to the position of the broken line B, that is, the switch has moved to the lower right.

After a predetermined time has elapsed since the switch is pressed (Yes in S4), the second light source 64 off (S5A), again to turn on the first light source 63 (S5B). Thus, display of characters and symbols and the outer frame of the switch to return to the region 10 from region 11, i.e., returns to the state before pressing.

FIG. 8 shows a display example of the switches 4 a to 4 e of the operation unit 4. Power of the induction heating cooker is placed, when the switch 4a~4e is not pressed, as shown in FIG. 8 (a), letters and symbols and the outer frame of the switch 4a~4e are equally spaced in a row Is displayed. For example, when the user presses the switch 4d, as shown in FIG. 8B, the characters and the outer frame of the switch 4d are slightly lower on the right side when viewed from the user (from the broken switch position to the solid switch position). Move). After a predetermined time has elapsed from the switch 4d is pressed, as shown in FIG. 8 (a), the character and the outer frame of the switch 4d is returned to the original position.

Therefore, the user upon pressing the switch, since the characters and symbols and the outer frame of the switch press is moved to the lower right for a predetermined time, felt like switch is actually pushed down, down the three-dimensional switch A feeling close to that of time can be obtained. The predetermined time is preferably 0.1 second to 2 seconds. If the predetermined time is too short, the user will not notice that the characters have disappeared, and if the predetermined time is too long, the user will misunderstand that the cooking device has been broken.

By induction heating cooker of this embodiment, the user can recognize that the switch is pressed. For this reason, even if you accidentally press the next to the switch by mistake, easy to notice the erroneous operation. For example, during the heating the cooking vessel, going to reduce the output of the heating coil 7, a switch to increase the output of the next, even if you happen to press, before anything inside the cooking container will spill Spray, Since the user is aware of an erroneous operation and can respond such as reducing the output, the possibility of failure in cooking is reduced. Further, since the can visually confirm whether the switch of the press has been accepted to the induction heating cooker, or down longer than necessary, it is eliminated or strongly pressed. This improves the operability of the switch.

  In addition, in this embodiment, although the light guide part 9 is a resin block, the material which does not let through other light may be sufficient.

The switch display control unit 8b in the present embodiment, after a predetermined time has elapsed since the switch is pressed, the second light source 64 is turned off, although light the first light source 63 again, the switch is pressed The second light source 64 may be turned on only during the interval, and when the user lifts his / her finger from the switch, the second light source 64 may be turned off and the first light source 63 may be turned on again.

Incidentally, with the above light source control of the present embodiment, when the switch is pressed, may output the audio by the audio output unit (dashed line 30 in FIG. 1).

While in the present invention are described as "elapses after the switch is pressed a predetermined time", strictly speaking, the control unit 8 is the predetermined time elapses after the senses that switch is pressed.

Induction heating cooker according to the present invention, when the user has pressed the electrostatic switch has the effect of being able to get a sense close to sense depressed, the induction heating cooker to be used, such as at home Useful for.

The block diagram of the induction heating cooking appliance by Embodiment 1 of this invention The top view of the top plate of the induction heating cooking appliance by Embodiment 1 of this invention The flowchart which shows the light source control process by the induction heating cooking appliance of Embodiment 1 of this invention. The block diagram of the induction heating cooking appliance by Embodiment 2 of this invention The block diagram of the induction heating cooking appliance by Embodiment 3 of this invention The top view of the light guide part and switch of the induction heating cooking appliance by Embodiment 3 of this invention The flowchart which shows the light source control process by the induction heating cooking appliance of Embodiment 3 of this invention. The figure which shows the example of a display of the switch of the operation part of the induction heating cooking appliance by Embodiment 3 of this invention.

DESCRIPTION OF SYMBOLS 1 Top plate 2 Heating part 3 Display part 4 Operation part 4a-4e Switch 5 Cooking container 6, 6b, 6c Light source 61, 63 1st light source 62, 64 2nd light source 7 Heating coil 8 Control part 8a Heating control part 8b Switch display controller 9 Light guide

Claims (3)

A top plate on which the cooking container is placed;
A heating coil that generates an induction magnetic field and induction-heats the cooking vessel;
An operation unit including a plurality of electrostatic switches provided on the lower surface of the top plate and each assigned a predetermined function;
A plurality of first light sources provided below the operation unit and respectively lighting the plurality of electrostatic switches;
According to the input function by the electrostatic switch is pressed, a heating control section for supplying a high-frequency current to the heating coil,
When the electrostatic switch is pressed, a display control unit the electrostatic switch for controlling the first light source so that a predetermined time since the press to change the display state of the electrostatic switches,
An audio output unit for outputting audio ;
The display control unit turns off the first light source corresponding to the pressed electrostatic switch when the electrostatic switch is pressed, and turns off after a predetermined time has elapsed since the electrostatic switch was pressed. Controlling the first light source to relight the first light source,
The predetermined time is between 0.1 second and 2 seconds,
The induction heating cooker, wherein the display control unit controls the sound output unit to output sound when the electrostatic switch is pressed . The operation unit provided under lights the plurality of electrostatic switches, respectively, further comprising a second light source for irradiating said first light source and the light of different colors,
The display controller, when the electrostatic switch in the lighting by said first light source is pressed, turns off the first light source corresponding to the electrostatic switch is pressed, the electrostatic that has been pressed said second light source lights corresponding to the switch, after a predetermined time has elapsed the electrostatic switches from being pressed, the lighting has been turned off the second light source, relight the unlit been the first light source 2. The induction heating cooker according to claim 1 , wherein the first and second light sources are controlled as follows. A second light source different from the first light source that is provided below the operation unit and lights each of the plurality of electrostatic switches;
Further have a light guiding portion for guiding the respective predetermined position the light the first and the second light source is irradiated,
Before Kishirube light unit guides the light the second light source is irradiated to a position where the first light source is slightly shifted from the position where the light is guided to the irradiation,
The display controller, when the electrostatic switch in the lighting by said first light source is pressed, turns off the first light source corresponding to the electrostatic switch is pressed, the electrostatic that has been pressed said second light source lights corresponding to the switch, after a predetermined time has elapsed the electrostatic switches from being pressed, the lighting has been turned off the second light source, relight the unlit been the first light source 2. The induction heating cooker according to claim 1 , wherein the first and second light sources are controlled as follows.

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