CA1183908A - Cooking appliance with a multicolored display unit - Google Patents
Cooking appliance with a multicolored display unitInfo
- Publication number
- CA1183908A CA1183908A CA000384076A CA384076A CA1183908A CA 1183908 A CA1183908 A CA 1183908A CA 000384076 A CA000384076 A CA 000384076A CA 384076 A CA384076 A CA 384076A CA 1183908 A CA1183908 A CA 1183908A
- Authority
- CA
- Canada
- Prior art keywords
- cooking
- cooking appliance
- heating
- temperature
- display
- 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.)
- Expired
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims description 26
- 239000003086 colorant Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 3
- 241001505295 Eros Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6435—Aspects relating to the user interface of the microwave heating apparatus
-
- 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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6447—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors
- H05B6/645—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors using temperature sensors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Ovens (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
ABSTRACT
This invention provides a cooking appliance which is easy to see, recognize and manipulate and free from faulty operation. In a cooking appliance such as an electronic range equipped with a heater, there is provided at low cost a multicolored fluorescent display tube which is capable of displaying in multi-colored fashion a plurality of information, including whether the current cooking is in a heater cooking mode or in a microwave cooking mode, and further including the temperature settings and time settings.
This invention provides a cooking appliance which is easy to see, recognize and manipulate and free from faulty operation. In a cooking appliance such as an electronic range equipped with a heater, there is provided at low cost a multicolored fluorescent display tube which is capable of displaying in multi-colored fashion a plurality of information, including whether the current cooking is in a heater cooking mode or in a microwave cooking mode, and further including the temperature settings and time settings.
Description
SPECIFICATIOl\!
TITLE OF THE INVENTION
Cooking Appliance With A Multicolored Display Uni-t TECHNICAL FIELD
This invention relates to a display means for display-ing the heating state of a cooming appliance such as an electronic range.
BACKGROUND ART
With the clevelopment of semiconduc-tor technology, microcomputer-aided products are in increasing use in the field of consumer appliances. The same is true in the area of cooking appliances. The operation thereof, however, has become more complex than ever before. Easy operation and easy-to-unders-tand displays are indispensable to consumer products.
For a combined electronic range and oven wherein the power level and time are input information during electronic range cooking and the temperature and time are lnpu-t in-formation during oven cooking, for exarnple, the user will be in confusion as to how to deal with the situation no matter how clearly a display provides a digital display. In other words, provided that a single display tube is designed to display both time and tempera-ture, the user is unable to kllow temp~rature while the display tube is displayincJ a time.
.,, ;'~
The same is true of time when a tempera-ture is on the display.
While it is possib]e to use two display -tubes for dis-playing time and tempera-ture, this approach presen-ts -the problem of increased cost and space for the display.
Referring to Fig. 1, the microwave radiation generated from a magnetron 1 is led via a waveguide ~ into the interior of a heating chamber 3 and absorbed into food in the heating chamber 3. There is an electric heater 4 within the heating chamber 3 to hea-t the atmosphere within the heating chamber 3 for oven cooking. A fluorescent display tube is so designed, as shown in Figs. 2(A) and 2(B), that the -thermal electrons emitted from a cathode 5 are accelerated by the positive voltages applied to a grid 6 and an anode 7 to thereby excite a fluorescent coating 8 on -the anode7 for light emission. A desired number, charac-ter, symbol or pattern is displayed upon selective applica-tion of the voltages to -the grid 6 and the anode 7.
Fig. 3 illustrates an operation panel including two fluorescent display tubes one of which 9 has a cooking mode display section 10 and a time display sec-tion 11 and the o-ther of which 13 has a tempera-ture display section 1~.
Because of the two fluorescent display tubes used, the operation panel is oE necessity complicated in structure and is not easi:Ly manipulatable.
DISCI,OSURE OF TIIE INVEN'rLON
__ It is tllere~ore an object of the present invention to provicde a cooking ~ppliance o~ -the heating type which uses a single multi-colored ~luoreseent display tube for displaying temperature and time, thus providin~ high legibility and high manipulability.
The abovenoted objeet may be achieved by providing a eooking appliance comprising a plurali-ty of heating means for eontrolling said heating means; said control means ineluding input means for in-troducing a plurality of da-ta as to selec-tion of said heating means, heating tempera-ture, heating time and a multi-colored display tube for displaying said plurality of data introdueed via said input means at the same time.
Speeifie embodiments of the presen-t invention will be deseribed in detail in the following description with refer-ence to the drawings.
BRIEF DESCRIPTION OF THE DRA~INGS
_ .. _ . . . .
Fig. 1 is a fragmentary front view of a eombination eleetronie range;
Fig. 2(A) an~1 2(B) are a eross seetional view and a perspective view, partially in eross see-tion, showing the structure of a prior art fluoreseent di.splay -tube;
Fig. 3 is a front view of a prineipal par-t of an opera-tion panel of a coo}cirlg applianee equipped with a plurallty of Eluoreseent di.splay tubes;
Fiy. ~ i.s a wiring diayram of respective segments in a multi-eolc)red fluoreseent display tube in a cooJcinc3 ~ 3a ~ ~ q~
appliance according -to an embodimen-t of the present inven-tion;
Fig. 5 is a view of a display pattern provided by the multi-colored fluorescent display tube;
Fig. 6 is a view showing a temperat~lre display section and light emissions therefrom, Fig. 7 is a circuit diagram of the cooking appliance according to the firs-t embodiment of the present invention;
:, .
~3~
Fig. 8 is a ~iew of a display pattern provlded by another example of the multi-colored fluorescent display tube;
Fig. 9 is a circuit diagram of another embodiment of the present invention;
Fig. 10 is a graph showing the relationship between a-node voltage and brightness of the fluorescent display tube;
Fig. 11 is a view of a display pattern provided by the mùlti-colored fluorescent display tuber with heating para-meters being colored in different colors; and Fig. 12 is a perspective view of the appearance of a combination electronic range.
BEST MODE FOR CARRYING OVT THE INVENTION
... . . _ ~ .
Fig. 4 shows a wiring pattern of a single multi-colored L
fluorescent display tube 12 having a cooking mode display section 15,a time display section 16,a temperature display section 24 and a temperature graduation display section 23.
In the illustrated example, fluorescent coatings covering "Hi" l9(indicative of high level microwave output), "Lo" 20 (indicative of low level microwave output),"GRILL" 21(indi- ;
cative of heater cooking subsequent to high level microwave cooking) and respective digit segments are excited to pro-vide green light, whereas fluorescent coatings covering "OVEN" 22 (indicativeof heatercooking) and respective segments in the temperature graduation display section 23 andthe tem-perature display section 24are excited to provide red light.
cathode for "OVEN" 22 is interconnected to a cathode for j.
3~ ~
the temperature graduation display section 23 ~ithin the display tube. Therefore, when "OVEN" mode is selected, both the "OVEN" display section 22 and the -temperature graduation display section 23 are energized simultaneously to emit light, prompting the operator to introduce a desired temperature input.
When the multi-colored fluorescent display tube 12 is supplied with a positive voltage from a terminal O7 and a terminal R4 leading to agrid 24-a in Fig. 4, "OVEN" ~2 gives a red emission. Upon supply of a positive voltage from the terminal O7 and a terminal R3 leading to a grid 24-b, "YEAST 120" gives a red emission. On sequential energization of terminals R2 and O7, terminals Rl and O7 and terminals R~ and O7 at a high speed, the "OVEN" display section 22 and the temperature graduation display section 23 appear all lit up to the human eye as shown in Fig. 5.
Temperature displaying segments are controlled under a signal line extending between terminals R7 and Rlo and a signal line extending between the terminals R3 and R~
Fig. 6 depicts a timing chart indicating output voltage levels.developing at the terminals Ro - R3 and R7 - Rlo when "200C" is displayed. A fluorescent coating on an anode segment ~or the temperature graduation display section is selected from red--coloring materials. Fig. 7 shows an ~;
example of -the electric circuit according to the present 2S invention.
~ microcomputer 25 provides systematic controls.
~;
~ ~ C~
- 6 ~ 3~
Energization of the electric heater 4 is achieved by switch-ing on and off a triac 26 through an output terminal R5 of the microcomputer 25 and an electronic circuit 27. The internal temperature of the heating chamber 3 is controlled by monitoring the temperature through a thermistor 28, out-put terminals Rll - R15 of the microcomputer, a D/A con-verter 29 and a comparator 30 and determining through the r microcomputer 25 whether a signal is outputted through the terminal R5. Excitation of th~ magnetron 1, on -the other hand, is controlledby switching on and off a primary wind-ing of a high voltage transformer 32 throuyh a terminal R6 of the microcomputer 25 and an electronic circuit 31. When the primary winding is closed, a high voltage is induced in a secondary winding to thereby excite the magnetron 1.
When the heater 4 is selected as a source of heat~ the temperature graduation display section is energized to pro-vide red light. The temperature graduation remains dis-energized when the magnetron 1 works. While grid voltages of a multi-colored fluorescent display tube 33 are sequ-entially supplied from the terminals R3 - R~ of the micro-computer 25, anode voltages are supplied in parallel ~ashionfromtermirlalsOo-07 L
A temperature setting is displayed by counting the number or duration of actuations of a temperature key 35 after selection of "O~EN" mode by a cooking mode key 34. F
A start key 37 is actuated after actuation of a time key 36. With an increase in the internal temperature of the _ 7 _ J~
heating chamber, the microcomputer 25 delivers signal out-puts to flicker segments corresponding to the lnstant oven temperature. Both the temperature setting and the CUrrnt oven temperature appear on the same temperature display section. When it is desiired to disp]ay the temperature setting, only the segments which correspond to the tem-perature setting are fired or flickered and the oven tem-perature is displayed in the form of a bar graph.
Fig. 8 shows addition of a cooking status display .
section above the time display section. The color of light from that section differs from that of the remain-ing display sections and that of the digit display sections.
Fig. 9 indicates a circuit adapted to drive the above described fluorescent display tube. Through operation of drivers 39 and,40, output voltages at terminals R16 - R20 ;' arld terminals 8 ~ 11 are increased for supply to -the multi-colored fluorescent display tube. This is due to the fact that the luminous efficiency of the fluorescent coatings is different from coating to coating and the luminous efficiency of the inefficient coatings need to be boosted as seen from Fig. 10. It is noted that Fiy.
11 is plotted as a function o the color of the display sections in corresponde,nce with heating parameters. For ~, example, provided that "Hi" and "Lo" during microwave cookiny and digitis :indicative of cooking time are display-ed i'n green and"OVEN" and "GRILL" during heater cooking are diisplayed in red as well as diyits inclicative of temperature, ~
~.
l~ ~IJ~ t~ ,J ~
the operator may recognize cooking status at a glance.
POSSIBILITY OF INDUSTRIAL UTILITY
As stated previouisly, the present invention provides a cooking appliance which is easy to see, recognize and manipulate and free from faulty operation through the utïlization of the single multi-colored fluorescent display tube which is capable of displaying microwave cooking mode, heater cooking mode, time settings and temperature settings ~-.
in a plurality of colors.
~
LIST OF REFERENCE NUMBER IN THE DRAWINGS
1...... .Magnetron
TITLE OF THE INVENTION
Cooking Appliance With A Multicolored Display Uni-t TECHNICAL FIELD
This invention relates to a display means for display-ing the heating state of a cooming appliance such as an electronic range.
BACKGROUND ART
With the clevelopment of semiconduc-tor technology, microcomputer-aided products are in increasing use in the field of consumer appliances. The same is true in the area of cooking appliances. The operation thereof, however, has become more complex than ever before. Easy operation and easy-to-unders-tand displays are indispensable to consumer products.
For a combined electronic range and oven wherein the power level and time are input information during electronic range cooking and the temperature and time are lnpu-t in-formation during oven cooking, for exarnple, the user will be in confusion as to how to deal with the situation no matter how clearly a display provides a digital display. In other words, provided that a single display tube is designed to display both time and tempera-ture, the user is unable to kllow temp~rature while the display tube is displayincJ a time.
.,, ;'~
The same is true of time when a tempera-ture is on the display.
While it is possib]e to use two display -tubes for dis-playing time and tempera-ture, this approach presen-ts -the problem of increased cost and space for the display.
Referring to Fig. 1, the microwave radiation generated from a magnetron 1 is led via a waveguide ~ into the interior of a heating chamber 3 and absorbed into food in the heating chamber 3. There is an electric heater 4 within the heating chamber 3 to hea-t the atmosphere within the heating chamber 3 for oven cooking. A fluorescent display tube is so designed, as shown in Figs. 2(A) and 2(B), that the -thermal electrons emitted from a cathode 5 are accelerated by the positive voltages applied to a grid 6 and an anode 7 to thereby excite a fluorescent coating 8 on -the anode7 for light emission. A desired number, charac-ter, symbol or pattern is displayed upon selective applica-tion of the voltages to -the grid 6 and the anode 7.
Fig. 3 illustrates an operation panel including two fluorescent display tubes one of which 9 has a cooking mode display section 10 and a time display sec-tion 11 and the o-ther of which 13 has a tempera-ture display section 1~.
Because of the two fluorescent display tubes used, the operation panel is oE necessity complicated in structure and is not easi:Ly manipulatable.
DISCI,OSURE OF TIIE INVEN'rLON
__ It is tllere~ore an object of the present invention to provicde a cooking ~ppliance o~ -the heating type which uses a single multi-colored ~luoreseent display tube for displaying temperature and time, thus providin~ high legibility and high manipulability.
The abovenoted objeet may be achieved by providing a eooking appliance comprising a plurali-ty of heating means for eontrolling said heating means; said control means ineluding input means for in-troducing a plurality of da-ta as to selec-tion of said heating means, heating tempera-ture, heating time and a multi-colored display tube for displaying said plurality of data introdueed via said input means at the same time.
Speeifie embodiments of the presen-t invention will be deseribed in detail in the following description with refer-ence to the drawings.
BRIEF DESCRIPTION OF THE DRA~INGS
_ .. _ . . . .
Fig. 1 is a fragmentary front view of a eombination eleetronie range;
Fig. 2(A) an~1 2(B) are a eross seetional view and a perspective view, partially in eross see-tion, showing the structure of a prior art fluoreseent di.splay -tube;
Fig. 3 is a front view of a prineipal par-t of an opera-tion panel of a coo}cirlg applianee equipped with a plurallty of Eluoreseent di.splay tubes;
Fiy. ~ i.s a wiring diayram of respective segments in a multi-eolc)red fluoreseent display tube in a cooJcinc3 ~ 3a ~ ~ q~
appliance according -to an embodimen-t of the present inven-tion;
Fig. 5 is a view of a display pattern provided by the multi-colored fluorescent display tube;
Fig. 6 is a view showing a temperat~lre display section and light emissions therefrom, Fig. 7 is a circuit diagram of the cooking appliance according to the firs-t embodiment of the present invention;
:, .
~3~
Fig. 8 is a ~iew of a display pattern provlded by another example of the multi-colored fluorescent display tube;
Fig. 9 is a circuit diagram of another embodiment of the present invention;
Fig. 10 is a graph showing the relationship between a-node voltage and brightness of the fluorescent display tube;
Fig. 11 is a view of a display pattern provided by the mùlti-colored fluorescent display tuber with heating para-meters being colored in different colors; and Fig. 12 is a perspective view of the appearance of a combination electronic range.
BEST MODE FOR CARRYING OVT THE INVENTION
... . . _ ~ .
Fig. 4 shows a wiring pattern of a single multi-colored L
fluorescent display tube 12 having a cooking mode display section 15,a time display section 16,a temperature display section 24 and a temperature graduation display section 23.
In the illustrated example, fluorescent coatings covering "Hi" l9(indicative of high level microwave output), "Lo" 20 (indicative of low level microwave output),"GRILL" 21(indi- ;
cative of heater cooking subsequent to high level microwave cooking) and respective digit segments are excited to pro-vide green light, whereas fluorescent coatings covering "OVEN" 22 (indicativeof heatercooking) and respective segments in the temperature graduation display section 23 andthe tem-perature display section 24are excited to provide red light.
cathode for "OVEN" 22 is interconnected to a cathode for j.
3~ ~
the temperature graduation display section 23 ~ithin the display tube. Therefore, when "OVEN" mode is selected, both the "OVEN" display section 22 and the -temperature graduation display section 23 are energized simultaneously to emit light, prompting the operator to introduce a desired temperature input.
When the multi-colored fluorescent display tube 12 is supplied with a positive voltage from a terminal O7 and a terminal R4 leading to agrid 24-a in Fig. 4, "OVEN" ~2 gives a red emission. Upon supply of a positive voltage from the terminal O7 and a terminal R3 leading to a grid 24-b, "YEAST 120" gives a red emission. On sequential energization of terminals R2 and O7, terminals Rl and O7 and terminals R~ and O7 at a high speed, the "OVEN" display section 22 and the temperature graduation display section 23 appear all lit up to the human eye as shown in Fig. 5.
Temperature displaying segments are controlled under a signal line extending between terminals R7 and Rlo and a signal line extending between the terminals R3 and R~
Fig. 6 depicts a timing chart indicating output voltage levels.developing at the terminals Ro - R3 and R7 - Rlo when "200C" is displayed. A fluorescent coating on an anode segment ~or the temperature graduation display section is selected from red--coloring materials. Fig. 7 shows an ~;
example of -the electric circuit according to the present 2S invention.
~ microcomputer 25 provides systematic controls.
~;
~ ~ C~
- 6 ~ 3~
Energization of the electric heater 4 is achieved by switch-ing on and off a triac 26 through an output terminal R5 of the microcomputer 25 and an electronic circuit 27. The internal temperature of the heating chamber 3 is controlled by monitoring the temperature through a thermistor 28, out-put terminals Rll - R15 of the microcomputer, a D/A con-verter 29 and a comparator 30 and determining through the r microcomputer 25 whether a signal is outputted through the terminal R5. Excitation of th~ magnetron 1, on -the other hand, is controlledby switching on and off a primary wind-ing of a high voltage transformer 32 throuyh a terminal R6 of the microcomputer 25 and an electronic circuit 31. When the primary winding is closed, a high voltage is induced in a secondary winding to thereby excite the magnetron 1.
When the heater 4 is selected as a source of heat~ the temperature graduation display section is energized to pro-vide red light. The temperature graduation remains dis-energized when the magnetron 1 works. While grid voltages of a multi-colored fluorescent display tube 33 are sequ-entially supplied from the terminals R3 - R~ of the micro-computer 25, anode voltages are supplied in parallel ~ashionfromtermirlalsOo-07 L
A temperature setting is displayed by counting the number or duration of actuations of a temperature key 35 after selection of "O~EN" mode by a cooking mode key 34. F
A start key 37 is actuated after actuation of a time key 36. With an increase in the internal temperature of the _ 7 _ J~
heating chamber, the microcomputer 25 delivers signal out-puts to flicker segments corresponding to the lnstant oven temperature. Both the temperature setting and the CUrrnt oven temperature appear on the same temperature display section. When it is desiired to disp]ay the temperature setting, only the segments which correspond to the tem-perature setting are fired or flickered and the oven tem-perature is displayed in the form of a bar graph.
Fig. 8 shows addition of a cooking status display .
section above the time display section. The color of light from that section differs from that of the remain-ing display sections and that of the digit display sections.
Fig. 9 indicates a circuit adapted to drive the above described fluorescent display tube. Through operation of drivers 39 and,40, output voltages at terminals R16 - R20 ;' arld terminals 8 ~ 11 are increased for supply to -the multi-colored fluorescent display tube. This is due to the fact that the luminous efficiency of the fluorescent coatings is different from coating to coating and the luminous efficiency of the inefficient coatings need to be boosted as seen from Fig. 10. It is noted that Fiy.
11 is plotted as a function o the color of the display sections in corresponde,nce with heating parameters. For ~, example, provided that "Hi" and "Lo" during microwave cookiny and digitis :indicative of cooking time are display-ed i'n green and"OVEN" and "GRILL" during heater cooking are diisplayed in red as well as diyits inclicative of temperature, ~
~.
l~ ~IJ~ t~ ,J ~
the operator may recognize cooking status at a glance.
POSSIBILITY OF INDUSTRIAL UTILITY
As stated previouisly, the present invention provides a cooking appliance which is easy to see, recognize and manipulate and free from faulty operation through the utïlization of the single multi-colored fluorescent display tube which is capable of displaying microwave cooking mode, heater cooking mode, time settings and temperature settings ~-.
in a plurality of colors.
~
LIST OF REFERENCE NUMBER IN THE DRAWINGS
1...... .Magnetron
2...... .Waveguide
3...... .Heating chamber
4...... .Electric heater s
5...... .Cathode
6...... .Grid
7~ Anode
8...... .Fluorescent coating
9...... .Fluorescent display tube
10... ~.. .Cooking mode display section ~_
11...... .Time display section
12...... .Multi-colored fluorescent display tube
13...... v Fluorescent display tube
14...... .Temperature display section
15...... ..Cooking mode dispaly section
16...... ..Time dispaly section
17...... ..Driver
18...... ..Driver
19...... .Hi
20....;. Lo
21...... ..GRILL
22...... ..OVFN
23...... ..Temperature draduation display section
24...... ..Temperature display section 24a~.... Grid 24b..... ..Grid q
25....... Microcomputer 260...... Triae ,Z
27....... Electronic circuit 28....... Thermistor 29....... D/A converter ~ r ~`
30....... Comparator 31 ...... Electronic cixcuit 32....... High voltage transformer 33....... Multi-eolored fluorescent display tube 34....... Cooking mode key 35....... Temperature key 36....... Time key 37....... Start key ;Z~
i ~ ~ r~ Z--3Z .~r~ Z:~'ZZy.~ ,rr.~. ~r;~,Z_f,,~ f.~ .7~ 'Y'-- ' '^,'--''-'~--~ '-~ - '''' - - ' - -' ~ -~ ~ ~ " ~ " ~ ~ Z , , ~ ,";" j~ q 1 ~ ' Z ~
27....... Electronic circuit 28....... Thermistor 29....... D/A converter ~ r ~`
30....... Comparator 31 ...... Electronic cixcuit 32....... High voltage transformer 33....... Multi-eolored fluorescent display tube 34....... Cooking mode key 35....... Temperature key 36....... Time key 37....... Start key ;Z~
i ~ ~ r~ Z--3Z .~r~ Z:~'ZZy.~ ,rr.~. ~r;~,Z_f,,~ f.~ .7~ 'Y'-- ' '^,'--''-'~--~ '-~ - '''' - - ' - -' ~ -~ ~ ~ " ~ " ~ ~ Z , , ~ ,";" j~ q 1 ~ ' Z ~
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A cooking appliance comprising: a plurality of heat-ing means for heating and cooking food; and control means for controlling said heating means; said control means including input means for introducing a plurality of data as to selection of said heating means, heating temperature, heating time and a multi-colored display tube for displaying said plurality of data introduced via said input-means at the same time.
2. A cooking appliance according to claim 1, wherein the displaying colors of said multi-colored display tube are different for said different heating means.
3. A cooking appliance according to claim 1, wherein the displaying color of cooking mode with a selected one of said heating means requiring temperature display is identi-cal with the displaying color of said temperature display.
4. A cooking appliance according to claim 1, wherein grid voltages and anode voltages of said multi-colored display tube are different for different displaying colors.
5. A cooking appliance according to claim 1, wherein heat-ing time is displayed in digits and heating temperature is displayed in an analog bar graph.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980118025U JPS5740007U (en) | 1980-08-19 | 1980-08-19 | |
| JP118025/1980 | 1980-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1183908A true CA1183908A (en) | 1985-03-12 |
Family
ID=14726198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000384076A Expired CA1183908A (en) | 1980-08-19 | 1981-08-18 | Cooking appliance with a multicolored display unit |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0057729A4 (en) |
| JP (1) | JPS5740007U (en) |
| KR (2) | KR830006632A (en) |
| AU (1) | AU535857B2 (en) |
| CA (1) | CA1183908A (en) |
| WO (1) | WO1982000703A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940000314B1 (en) * | 1989-12-28 | 1994-01-14 | 주식회사 금성사 | Standing time displaying method for electronic range |
| DE19724992A1 (en) * | 1997-06-13 | 1998-12-17 | Aeg Hausgeraete Gmbh | Hob with vacuum fluorescent display for cooker |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586903B2 (en) * | 1975-03-28 | 1983-02-07 | 株式会社日立製作所 | Sampling method |
| US4162422A (en) * | 1975-10-31 | 1979-07-24 | Futaba Denshi Kogyo K.K. | Composite digital and analogue fluorescent display panel device |
| JPS5329270U (en) * | 1976-08-20 | 1978-03-13 | ||
| US4158431A (en) * | 1976-12-10 | 1979-06-19 | Texas Instruments Incorporated | Self-test feature for appliances or electronic systems operated by microprocessor |
| DE2712325A1 (en) * | 1977-03-21 | 1978-09-28 | Siemens Ag | OPTICAL DISPLAY ELEMENT |
| JPS5927924B2 (en) * | 1977-11-15 | 1984-07-09 | 松下電器産業株式会社 | Program timer - additional heat device |
| JPS54148573A (en) * | 1978-05-15 | 1979-11-20 | Casio Comput Co Ltd | Electronic watch |
| JPS54156778A (en) * | 1978-05-30 | 1979-12-11 | Hitachi Netsu Kigu Kk | Food heater |
| JPS5517006A (en) * | 1978-07-19 | 1980-02-06 | Hitachi Heating Appliance Co Ltd | High frequency heater |
| US4303913A (en) * | 1978-08-25 | 1981-12-01 | Matsushita Electric Industrial Co., Ltd. | Fluorescent display device and display apparatus using the same |
| JPS5551892U (en) * | 1978-10-03 | 1980-04-05 | ||
| JPS55103679U (en) * | 1979-01-09 | 1980-07-19 |
-
1980
- 1980-08-19 JP JP1980118025U patent/JPS5740007U/ja active Pending
-
1981
- 1981-08-17 WO PCT/JP1981/000179 patent/WO1982000703A1/en not_active Application Discontinuation
- 1981-08-17 EP EP19810902251 patent/EP0057729A4/en not_active Withdrawn
- 1981-08-17 KR KR1019810002973A patent/KR830006632A/en unknown
- 1981-08-17 AU AU74560/81A patent/AU535857B2/en not_active Ceased
- 1981-08-18 CA CA000384076A patent/CA1183908A/en not_active Expired
-
1984
- 1984-09-14 KR KR2019840009033U patent/KR850000429Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU535857B2 (en) | 1984-04-05 |
| AU7456081A (en) | 1982-03-17 |
| JPS5740007U (en) | 1982-03-04 |
| EP0057729A1 (en) | 1982-08-18 |
| EP0057729A4 (en) | 1983-04-06 |
| KR850000429Y1 (en) | 1985-03-18 |
| KR830006632A (en) | 1983-09-28 |
| WO1982000703A1 (en) | 1982-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |