CN111550832A - Heating cooker - Google Patents
Heating cooker Download PDFInfo
- Publication number
- CN111550832A CN111550832A CN202010080181.9A CN202010080181A CN111550832A CN 111550832 A CN111550832 A CN 111550832A CN 202010080181 A CN202010080181 A CN 202010080181A CN 111550832 A CN111550832 A CN 111550832A
- Authority
- CN
- China
- Prior art keywords
- touch
- touch switch
- top plate
- touch operation
- switch unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 45
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims description 14
- 238000002834 transmittance Methods 0.000 claims description 5
- 239000000615 nonconductor Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 15
- 239000007789 gas Substances 0.000 description 16
- 239000011521 glass Substances 0.000 description 14
- 239000012528 membrane Substances 0.000 description 7
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 3
- 239000011112 polyethylene naphthalate Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Induction Heating Cooking Devices (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention provides a heating cooker. The heating operation can be reliably stopped by the touch operation even in the case where deformation or damage is generated on the electrode sheet due to the influence of heat. The heating cooker is provided with a capacitance type touch switch device (7) for detecting a touch operation on a touch operation part provided on an operation panel part (5) of a top plate (2). The touch switch device (7) is provided with a touch switch unit (8) for operation that detects a touch operation related to heating operation, and a touch switch unit (9) for main power supply that detects a touch operation of turning on or off the main power supply. The operation touch switch unit (8) is provided with a 1 st detection electrode. The main power supply touch switch unit (9) is provided with a 2 nd detection electrode (17) for detecting a touch operation and a metal transmission member (18) for transmitting the touch operation to the 2 nd detection electrode (17), and the 2 nd detection electrode (17) is provided so as to be spaced apart from the top plate than the 1 st detection electrode.
Description
Technical Field
The present invention relates to a heating cooker such as a gas cooker and an IH cooker.
Background
In recent years, a top plate of a heating cooker such as a gas cooker or an IH cooker is made of a reinforced glass having a high aesthetic quality. Among such heating cookers, there is known a heating cooker in which an operation panel portion is provided in a partial region of a top plate located in front of a heating portion that heats an object to be heated on the top plate.
A capacitive touch switch is provided on the operation panel unit, and a user can touch any one of a plurality of touch operation units provided on the operation panel unit with a finger to operate the content assigned to the touch operation unit (see, for example, patent document 1 below).
As a touch switch, there is known a touch switch in which an electrode sheet having an electrode formed on the rear surface of a dielectric panel or an electrode substrate is attached to the rear surface in close contact therewith (for example, see patent document 2 below).
The electrode sheet and the electrode substrate are formed of a synthetic resin film, and detection electrodes and a wiring pattern for detecting a touch operation are formed on the substrate. A glass plate having light transmittance is suitable as the dielectric panel. A touch operation portion is provided on the upper surface of the glass plate. The touch operation unit is correspondingly provided with a detection electrode of the electrode sheet.
The touch switch configured in this manner is suitably used in a heating cooker provided with a glass top plate that can function as a dielectric panel.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2010-2126
Patent document 2: japanese patent laid-open publication No. 2013-120656
Disclosure of Invention
Problems to be solved by the invention
In the touch switch having the above-described configuration, the electrode sheet to be used may be a film made of a polyester-based synthetic resin such as polyethylene terephthalate or polyethylene naphthalate, and the electrode substrate may be a paper phenol substrate, a glass composite substrate, an epoxy glass substrate, or the like, which is relatively low in heat resistance and thus is not suitable for use in a high-temperature environment because of deformation or damage at 120 to 150 ℃.
Therefore, when a high-temperature object to be heated (for example, a high-temperature tempura fryer) such as a pot or a frying pan heated by a heating portion of a heating cooker is placed on an operation portion flush with a top plate, there is a possibility that a member on which a detection electrode such as an electrode sheet is formed is deformed or damaged by heat from the high-temperature object to be heated, and a detection failure or an erroneous operation of a touch operation occurs.
Even if a detection failure or malfunction of the touch operation occurs due to deformation or damage of the member on which the detection electrode is formed, the heating operation cannot be stopped by the touch operation, and the heating operation continues.
In view of the above-described problems, an object of the present invention is to provide a heating cooker capable of reliably stopping a heating operation by a touch operation even when a member on which a detection electrode is formed is deformed or damaged due to the influence of heat.
Means for solving the problems
In order to achieve the above object, a heating cooker according to the present invention includes: a top plate on which an object to be heated can be placed; a heating unit for heating the object to be heated on the top plate; an operation panel portion provided in a partial region of the top plate and composed of an electrical insulator; a plurality of touch operation sections provided on the operation panel section; a capacitive touch switch device for detecting a touch operation on each touch operation unit; and a control board for performing control corresponding to touch operation of each touch operation unit, the touch switch device includes an operation touch switch unit for detecting a touch operation related to a heating operation of the heating unit, and a main power supply touch switch unit for detecting a touch operation for turning on or off a main power supply, the operation touch switch unit includes a 1 st detection electrode for detecting a touch operation provided in contact with or in proximity to the back surface of the top plate, the main power supply touch switch unit includes a 2 nd detection electrode for touch operation detection provided so as to be spaced apart from the back surface of the top plate than the 1 st detection electrode, and a metal electrode provided between the 2 nd detection electrode and the back surface of the top plate and transmitting a touch operation to the 2 nd detection electrode.
The touch operation at the operation touch switch section is an operation related to the heating operation of the heating section, and examples thereof include start and stop of heating of the heating section, and adjustment of heating power.
On the other hand, the 2 nd detection electrode of the main power supply touch switch unit detects a touch operation via the metal transmission member. Thus, even if an object to be heated, such as a pot or a frying pan, heated to a high temperature is erroneously placed on the operation panel portion, the metal transmission member of the main power supply touch switch portion is not deformed or damaged by heat.
In addition, even when the touch operation of the 1 st detection electrode provided in the operation touch switch unit cannot be normally detected due to deformation or damage caused by heat in the operation touch switch unit, the main power supply can be turned off by performing the touch operation on the main power supply touch switch unit.
In this way, even if the operating touch switch unit is deformed or damaged, the heating operation can be stopped by the touch operation of the main power supply touch switch unit, and the heating operation can be reliably prevented from continuing in an abnormal state.
In the present invention, it is preferable that at least a part of the operation panel has a light-transmitting property, and the operation touch switch section has the 1 st detection electrode formed on a light-transmitting substrate. Examples of the material for forming the light-transmitting substrate include polyester synthetic resins such as polyethylene terephthalate and polyethylene naphthalate.
Thus, for example, light from a light emitting element such as an LED that emits light in response to a touch operation can be transmitted through the operating touch switch unit and visually recognized on the operation panel. Therefore, for example, by using a part of the top plate having high aesthetic quality such as glass as the operation panel, it is possible to make the light emission of the light emitting element corresponding to the touch operation be able to be confirmed from the top plate through the operation touch switch section.
Drawings
Fig. 1 is a plan view showing a heating cooker according to an embodiment of the present invention.
Fig. 2 is an explanatory view of a top view of the operation panel section.
Fig. 3 is an exploded perspective view schematically showing the structure of the touch switch.
Fig. 4 is an explanatory cross-sectional view showing a part of the operation panel portion.
Description of the symbols
1 … gas cooker (heating cooker), 2 … top plate, 3 … gas burner (heating unit), 5 … operation panel unit, 7 … touch switch device, 8 … operation touch switch unit, 9 … main power supply touch switch unit, 10 … base, 11a to 11d … membrane electrode (1 st detection electrode), 14 … control substrate, 17 … fixed electrode (2 nd detection electrode), 18 … metal transmission member, 19a to 19d, 20 … touch operation unit.
Detailed Description
An embodiment of the present invention will be described based on the drawings. Fig. 1 shows a gas stove 1 as a heating cooker of the present embodiment. As shown in fig. 1, the gas stove 1 includes: a top plate 2 covering the upper surface of the housing (not shown), a gas burner 3 projecting toward the top plate 2, and a fire supporter 4 for supporting an object to be heated (not shown) such as a pan or a frying pan on the gas burner 3.
The top plate 2 is made of heat-resistant tempered glass and has light transmittance, and the top plate 2 is formed in a dark color to such an extent that structures and the like inside the housing are hardly visible. Note that, although the color of the top plate 2 is shown in fig. 1 as colorless, the top plate 2 used in the present embodiment is displayed in dark black as shown in fig. 2.
As shown in fig. 1 and 2, an operation panel portion 5 is provided in a region on the front side of the top plate 2. The operation panel portion 5 and the region of the top panel 2 where the fire chapters 4 are provided are continuously provided on the same smooth surface without being divided.
A main power supply mark 6 is provided on the surface of the operation panel portion 5. The main power source mark 6 is formed by painting, engraving, or aluminum plating, and is provided so as not to disappear from the glass surface.
When the user touches the main power supply mark 6 or its vicinity with a finger (hereinafter referred to as a touch operation), various marks formed by light appear on the operation panel section 5 as shown in fig. 2. The user can perform a desired operation on the gas burner 3 by touching any mark formed by light.
As schematically shown in fig. 3, the operation panel unit 5 is provided with a capacitive touch switch device 7, thereby enabling the touch operation described above. The touch switch device 7 includes an operation touch switch unit 8 and a main power supply touch switch unit 9.
The operating touch switch unit 8 includes a light-transmitting synthetic resin film (e.g., a PET film or a PEN film) as a substrate 10, and a plurality of membrane electrodes 11a to 11d (1 st detection electrodes) for detecting a touch operation, and a connection unit 12. The operation touch switch unit 8 is attached to the lower surface of the operation panel unit 5 integrated with the top plate 2 in close contact therewith.
For convenience of explanation, fig. 3 shows only 4 membrane electrodes 11a to 11 d. In practice, a plurality of membrane electrodes are further provided according to the functions of the gas burner 1.
A control board 14 is mounted on the lower surface of the operating touch switch unit 8 via a mount case 13. The control board 14 includes LEDs 15a to 15d corresponding to the membrane electrodes 11a to 11d of the operating touch switch unit 8 and a connector 16 connected to a connection portion of the operating touch switch unit 8, and the control board 14 is housed in the assembly case 13.
As shown in fig. 3 and 4, the main power supply touch switch unit 9 includes a fixed electrode 17 (the 2 nd detection electrode) provided on the control board 14 and a metal transmission member 18 provided on the fixed electrode 17.
The metal transmission member 18 is formed of a metal spring plate material having a higher heat resistance temperature than the base body 10 of the operation touch switch unit 8, and one end (lower end surface) of the metal transmission member 18 is connected to the fixed electrode 17, and the other end (upper end surface) thereof is in contact with the lower surface of the operation panel unit 5. At this time, since the metal transmission member 18 is formed of a metal spring plate material, the upper end surface of the metal transmission member 18 is pressed against the lower surface of the operation panel unit 5, and the detection accuracy of the touch operation is improved. The fixed electrode 17 is opposed to the back surface of the top plate 2 via a metal transmission member 18, and thereby the fixed electrode 17 is provided to be separated from the top plate 2.
When the fixed electrode 17 detects a touch operation via the metal transmission member 18 of the main power supply touch switch unit 9, the main power supply of the gas burner 1 is turned ON (ON) or OFF (OFF). When the main power supply is turned on, power supply to the control board 14 is started, and if the main power supply is turned off, power supply to the control board 14 is stopped.
The gas burner 3 is supplied with fuel gas through a unit electromagnetic valve provided in a fuel gas supply path, not shown, and is energized through the control board 14 to open and close the unit electromagnetic valve. That is, when the main power supply is on (NO), the power supply to the element solenoid valve is enabled, and the element solenoid valve is opened by the operation of the operation touch switch unit 8, and when the main power supply is OFF (OFF), the power supply to the element solenoid valve is stopped and the element solenoid valve is closed. When the meta solenoid valve is closed, combustion of the gas burner 3 is stopped.
As shown in fig. 3, touch operation portions 19a to 19d and 20 are provided on the operation panel portion 5 at positions corresponding to the membrane electrodes 11a to 11d and the fixed electrode 17. As shown in fig. 1, the touch operation portion 20 corresponding to the main power supply touch switch portion 9 can be visually recognized by the main power supply flag 6 even in a state where the main power supply is OFF (OFF), but the display of any of the touch operation portions 19a to 19d corresponding to the operating touch switch portion 8 cannot be visually recognized. When the main power supply is turned ON (ON), the LEDs 15a to 15d of the control board 14 shown in fig. 3 display the touch operation portions 19a to 19d (see fig. 2).
As shown in fig. 3 and a part of fig. 4, the LEDs 15a to 15d of the control board 14 are provided at positions corresponding to the membrane electrodes 11a to 11d of the operating touch switch unit 8. The light from the LEDs 15a to 15d passes through the small openings 21a to 21d of the mount case 13, passes through the operation touch switch unit 8, and reaches the respective surfaces of the operation panel unit 5. As a result, as shown in fig. 2, the display by light can be made to appear on the top panel 2 (operation panel unit 5) and be visually recognized. The positions of the LEDs 15a to 15d in fig. 3 are shown for the sake of explanation, and are different from the display positions in the touch operation units 19a to 19d shown in fig. 2. Actually, the LEDs 15a to 15d are arranged so as to correspond to the display positions on the touch operation units 19a to 19d shown in fig. 2.
Since the operating touch switch unit 8 has light transmittance in this manner, the operation panel unit 5 can display the respective marks of the touch operation units 19a to 19d by the light from the LEDs 15a to 15d of the control board 14. When the LEDs 15a to 15d of the control board 14 are not lit, the operation panel unit 5 is integrated with the top panel 2 as shown in fig. 1, and a very high aesthetic effect can be obtained.
As shown in fig. 1, the operation panel portion 5 is provided on the top plate 2 and is located on the front side of the gas burner 3. Therefore, a high-temperature object to be heated such as a tempura fryer or a fryer may be inadvertently placed on the operation panel portion 5.
Referring to fig. 1 to 4, when an object heated by the gas burner 3 is placed on the operation panel unit 5, the operation touch switch unit 8 in close contact with the lower surface of the operation panel unit 5 is affected by the heat of the object. At this time, if high-temperature heat is transferred to the operating touch switch unit 8 and the substrate 10 formed of a synthetic resin film as the operating touch switch unit 8 is deformed or damaged, it is difficult to detect a touch operation by the film electrodes 11a to 11d, and there is a possibility that a desired normal heating operation cannot be performed. Therefore, in this case, it is preferable to stop the heating operation immediately.
Therefore, in the present embodiment, by operating the touch operation unit 20 having the display of the main power supply mark 6, the fixed electrode 17 can detect a touch operation via the metal transmission member 18 of the main power supply touch switch unit 9 and turn OFF (OFF) the main power supply.
That is, the fixed electrode 17 is provided separately from the top plate 2, and detects a touch operation via the metal transmission member 18. Since the metal transmission member 18 is made of metal, it has high heat resistance, and is not deformed or damaged by heat due to the influence of heat from the top plate 2, and thus, it is possible to accurately detect a touch operation. Further, since the main power supply mark 6 is not caused by light, it is not necessary to have light transparency as in the operation touch switch unit 8. Therefore, by providing the fixed electrode 17 on the touch operation portion 20 having the display of the main power supply mark 6 via the metal transmission member 18, it is possible to reliably prevent the abnormal heating operation from continuing.
Although the gas burner 1 is described as an example in the present embodiment, the present invention is suitably applicable to a heating cooker provided with a glass top plate, and can also be applied to an IH burner or the like. As the plate-like glass constituting the top plate material, for example, crystallized glass can be used.
In the present embodiment, the operating touch switch unit 8 formed of a synthetic resin film is used, but the present invention is not limited to this. As the operation touch switch unit of the present invention, an electrode substrate using paper phenol, a glass composite material, an epoxy glass material, or the like may be used. In this case, when the operation touch switch portion does not have light transmittance, a mark that does not disappear from the glass surface may be formed at a corresponding position of the operation panel portion 5, similarly to the main power supply mark 6.
Claims (2)
1. A heating cooker is provided with:
a top plate on which an object to be heated can be placed;
a heating unit for heating the object to be heated on the top plate;
an operation panel portion provided in a partial region of the top plate and composed of an electrical insulator;
a plurality of touch operation sections provided on the operation panel section;
a capacitive touch switch device for detecting a touch operation on each touch operation unit; and the combination of (a) and (b),
a control board for controlling the touch operation of each touch operation part,
the heating cooker is characterized in that,
the touch switch device includes an operation touch switch unit for detecting a touch operation related to a heating operation of the heating unit, and a main power supply touch switch unit for detecting a touch operation for turning on or off a main power supply,
the operation touch switch unit includes a 1 st detection electrode for detecting a touch operation provided in contact with or in proximity to the back surface of the top plate,
the main power supply touch switch unit includes a 2 nd detection electrode for touch operation detection provided so as to be spaced apart from the back surface of the top plate than the 1 st detection electrode, and a metal electrode provided between the 2 nd detection electrode and the back surface of the top plate and transmitting a touch operation to the 2 nd detection electrode.
2. The heating cooker according to claim 1,
at least a part of the operation panel has light transmittance,
the operation touch switch unit has the 1 st detection electrode formed on a light-transmissive substrate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019021358A JP7145778B2 (en) | 2019-02-08 | 2019-02-08 | heating cooker |
| JP2019-021358 | 2019-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111550832A true CN111550832A (en) | 2020-08-18 |
Family
ID=72002812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010080181.9A Pending CN111550832A (en) | 2019-02-08 | 2020-02-05 | Heating cooker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7145778B2 (en) |
| CN (1) | CN111550832A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010002126A (en) * | 2008-06-20 | 2010-01-07 | Panasonic Corp | Cooker |
| CN101834592A (en) * | 2009-03-11 | 2010-09-15 | 林内株式会社 | Detection electrode of a touch switch |
| CN102427357A (en) * | 2011-12-07 | 2012-04-25 | 江苏惠通集团有限责任公司 | Capacitor touch key system |
| DE102011079737A1 (en) * | 2011-07-25 | 2013-01-31 | BSH Bosch und Siemens Hausgeräte GmbH | Operating device for a household appliance and household appliance |
| JP2013120656A (en) * | 2011-12-06 | 2013-06-17 | Rinnai Corp | Touch switch device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4613684B2 (en) | 2005-05-12 | 2011-01-19 | パナソニック株式会社 | Electromagnetic cooker |
| US7687748B2 (en) | 2005-08-01 | 2010-03-30 | Western Industries, Inc. | Induction cook top system with integrated ventilator |
| DE102005041113A1 (en) | 2005-08-30 | 2007-03-01 | BSH Bosch und Siemens Hausgeräte GmbH | Capacitive proximity switch for e.g. washing machine, has semiconductor switch comprising signal input with clock signal and signal output, where output has output signal, which has signals portions that are proportional to capacitance |
| US8669502B2 (en) | 2009-07-27 | 2014-03-11 | Panasonic Corporation | Operation device and heating cooker using operation device |
-
2019
- 2019-02-08 JP JP2019021358A patent/JP7145778B2/en active Active
-
2020
- 2020-02-05 CN CN202010080181.9A patent/CN111550832A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010002126A (en) * | 2008-06-20 | 2010-01-07 | Panasonic Corp | Cooker |
| CN101834592A (en) * | 2009-03-11 | 2010-09-15 | 林内株式会社 | Detection electrode of a touch switch |
| DE102011079737A1 (en) * | 2011-07-25 | 2013-01-31 | BSH Bosch und Siemens Hausgeräte GmbH | Operating device for a household appliance and household appliance |
| JP2013120656A (en) * | 2011-12-06 | 2013-06-17 | Rinnai Corp | Touch switch device |
| CN102427357A (en) * | 2011-12-07 | 2012-04-25 | 江苏惠通集团有限责任公司 | Capacitor touch key system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7145778B2 (en) | 2022-10-03 |
| JP2020128842A (en) | 2020-08-27 |
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