CN101247685B - Electroluminescent illumination circuit and microwave oven with the same - Google Patents
Electroluminescent illumination circuit and microwave oven with the same Download PDFInfo
- Publication number
- CN101247685B CN101247685B CN2007100376518A CN200710037651A CN101247685B CN 101247685 B CN101247685 B CN 101247685B CN 2007100376518 A CN2007100376518 A CN 2007100376518A CN 200710037651 A CN200710037651 A CN 200710037651A CN 101247685 B CN101247685 B CN 101247685B
- Authority
- CN
- China
- Prior art keywords
- sheet
- signal
- chip
- gate
- lighting circuit
- 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 - Fee Related
Links
- 238000005286 illumination Methods 0.000 title 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 24
- 238000010586 diagram Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses an electroluminescence patch illumination circuit and a micro-wave oven with the circuit, which can prolong service time of EL patch, in the mean while, can watch working condition of the micro-wave oven high-voltage transformer or inverter intuitively and real-time. A technical scheme is that: the lighting circuit includes: at least one electroluminescence patch; a power supply module electrical connected with said electroluminescence patch; a controllable switch set in inner circuit of the power supply module, and opened/closed according with signal received by signal control end; an integrated circuit chip connected with signal control end of the controllable switch. The electroluminescence patch illumination circuit and a micro-wave oven with the circuit is used in electroluminescence patch circuit.
Description
Technical field
The present invention relates to a kind of lighting circuit, relate in particular to a kind of lighting circuit that EL sheet is installed with controlled function with controlled function.
Background technology
EL (Electronic Luminescence) sheet is called EL sheet, but the EL sheet is luminous have ultra-thin smooth curved surface luminous, can be made into arbitrary shape, can be made into that complicated colour flashes, light is evenly soft, do not produce heat, luminous efficiency height, low in energy consumption, against shock, do not need advantage such as maintenances, so be a kind of pretty good luminescent material.
The EL sheet can be applicable in the electrical equipment such as microwave oven as the backlight of microwave oven, and the EL sheet lighting circuit in the existing microwave oven as depicted in figs. 1 and 2.Existing lighting circuit is very simple, is made of a plurality of EL sheets and the supply module that is attached thereto.Supply module among Fig. 1 is the AC power of 120-220V, and the supply module among Fig. 2 is that DC power supply and the inverter of 5-18V formed, and inverter can be converted to alternating current with direct current.
It is luminous that existing EL sheet lighting circuit continues the EL sheet, but since the EL sheet this in useful life the aspect have defective, along with its luminous intensity of prolongation of operating time can die down gradually, general useful life is about 10000 hours.
Summary of the invention
The objective of the invention is to address the above problem, a kind of EL sheet lighting circuit is provided and has had the microwave oven of this circuit, can prolong the service time of EL sheet, simultaneously can be intuitively and see the working condition of high voltage transformer of microwave oven or frequency converter in real time.
Technical scheme of the present invention is: the invention provides a kind of EL sheet lighting circuit, wherein, this lighting circuit comprises:
At least one EL sheet;
Supply module with those EL sheet electric connections;
Be arranged on the gate-controlled switch on this supply module internal wiring, the signal folding of receiving according to its signal controlling termination;
The integrated circuit (IC) chip that is connected with the signal controlling end of this gate-controlled switch.
Above-mentioned EL sheet lighting circuit, wherein, this integrated circuit (IC) chip further comprises:
One first judging unit detects and sends first signal when user operates, and detects to send secondary signal after the user satisfies preset value without any the state duration of operating;
One chip controls signal generation unit, when receiving first signal that this first judging unit sends, produce chip controls signal that a closed electricity causes reflecting piece to this gate-controlled switch, when receiving the secondary signal that this first judging unit sends, produce one and open circuit the chip controls signal of EL sheet to this gate-controlled switch.
Above-mentioned EL sheet lighting circuit, wherein, the operation that this chip controls signal generation unit receives the user produces the chip controls signal of closed or the EL sheet that opens circuit to this gate-controlled switch.
Above-mentioned EL sheet lighting circuit, wherein, between this supply module and those EL sheet, be connected with a switching device, this switching device is in parallel with the branch road that this gate-controlled switch and integrated circuit (IC) chip are formed, and chip controls voltage of signals and frequency that the switch controlling signal that this switching device sends and this chip controls signal generation unit generate are inequality.
Above-mentioned EL sheet lighting circuit, wherein, this switching device comprises high-tension transformer and converter plant.
Above-mentioned EL sheet lighting circuit, wherein, this integrated circuit (IC) chip also comprises one second judging unit, closes this chip controls signal generation unit when the switch controlling signal that detects this switching device is effective.
The present invention also provides a kind of microwave oven that has the EL sheet lighting circuit, the Lighting Division and one that comprise housing, is positioned at the housing front face side switches switch, it is characterized in that, the bottom of this Lighting Division is provided with an EL sheet lighting circuit as backlight, this lighting circuit links to each other with this diverter switch, and wherein this EL sheet lighting circuit comprises:
At least one EL sheet;
Supply module with those EL sheet electric connections;
Be arranged on the gate-controlled switch on this supply module internal wiring, the signal folding of receiving according to its signal controlling termination;
The integrated circuit (IC) chip that is connected with the signal controlling end of this gate-controlled switch.
The above-mentioned microwave oven that has the EL sheet lighting circuit, wherein, this integrated circuit (IC) chip further comprises:
One first judging unit detects and sends first signal when user operates, and detects to send secondary signal after the user satisfies preset value without any the state duration of operating;
One chip controls signal generation unit, when receiving first signal that this first judging unit sends, produce chip controls signal that a closed electricity causes reflecting piece to this gate-controlled switch, when receiving the secondary signal that this judging unit sends, produce one and open circuit the chip controls signal of EL sheet to this gate-controlled switch.
The above-mentioned microwave oven that has the EL sheet lighting circuit, wherein, this chip controls signal generation unit receives the operation of user to this diverter switch, with produce closure or the chip controls signal of the EL sheet that opens circuit to this gate-controlled switch.
The above-mentioned microwave oven that has the EL sheet lighting circuit, wherein, between this supply module and those EL sheet, be connected with a switching device, this switching device is in parallel with the branch road that this gate-controlled switch and integrated circuit (IC) chip are formed, and chip controls voltage of signals and frequency that the switch controlling signal that this switching device sends and this chip controls signal generation unit generate are inequality.
The above-mentioned microwave oven that has the EL sheet lighting circuit, wherein, this switching device comprises high-tension transformer and converter plant.
The above-mentioned microwave oven that has the EL sheet lighting circuit, wherein, this integrated circuit (IC) chip also comprises one second judging unit, closes this chip controls signal generation unit when the switch controlling signal that detects this switching device is effective.
The present invention contrasts prior art following beneficial effect: the present invention controls the operating state of EL sheet by integrated circuit (IC) chip and gate-controlled switch are set in the circuit of supply module, to prolong the useful life of EL sheet.
Description of drawings
Fig. 1 is the schematic diagram of existing a kind of EL sheet lighting circuit.
Fig. 2 is the schematic diagram of existing another kind of EL sheet lighting circuit.
Fig. 3 is the schematic diagram of a preferred embodiment of EL sheet lighting circuit of the present invention.
Fig. 4 is the schematic diagram of another preferred embodiment of EL sheet lighting circuit of the present invention.
Fig. 5 is the schematic diagram of another preferred embodiment of EL sheet lighting circuit of the present invention.
Fig. 6 is the schematic diagram of another preferred embodiment of EL sheet lighting circuit of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 3 shows the principle frame of a preferred embodiment of EL sheet lighting circuit of the present invention.See also Fig. 3, the EL sheet lighting circuit of present embodiment is mainly by forming with lower member: a plurality of EL sheets 1, the AC power that is connected with those EL sheets 1, the integrated circuit (IC) chip 3 that is arranged on the gate-controlled switch 2 on the ac power supply circuit and links to each other with the control end of this gate-controlled switch.
Establish one first judging unit 31 and a chip controls signal generation unit 32 in the integrated circuit (IC) chip 3.First judging unit 31 detects the user to be satisfied preset value (preset value is set by the user without any the state duration of operation, such as 3 minutes) send a signal to chip controls signal generation unit 32, signal generation unit 32 produces the chip controls signal of the EL sheet that opens circuit to gate-controlled switch 2 after receiving this signal, gate-controlled switch 2 disconnects AC power, and the EL sheet is not luminous.First judging unit 31 1 detects user's operation, just send a signal to chip controls signal generation unit 32, signal generation unit 32 receive produce a closed EL sheet behind this signal the chip controls signal to gate-controlled switch 2, gate-controlled switch 2 closed AC power, the EL sheet is luminous.The signal of EL sheet work is interrupted signal, carries out interrupted refreshing in the imperceptible scope of naked eyes, effectively improves the life-span of EL sheet.
Chip controls signal generation unit 32 also can directly receive user's setting operation (it is luminous or not luminous that the EL sheet for example is set), and the chip controls signal that produces closed or the EL sheet that opens circuit is to gate-controlled switch 2, by gate-controlled switch 2 closed or disconnection AC power.
Fig. 4 shows the principle frame of another preferred embodiment of EL sheet lighting circuit of the present invention.See also Fig. 4, the EL sheet lighting circuit of present embodiment is mainly by forming with lower member: a plurality of EL sheets 1, the DC power supply that is connected with those EL sheets 1 and inverter 4, the integrated circuit (IC) chip 3 that is arranged on the gate-controlled switch 2 on the dc power supply circuit and links to each other with the control end of this gate-controlled switch 2.
The operation principle of present embodiment except supply module part with embodiment illustrated in fig. 3 different, be that the setting of miscellaneous part is identical with Fig. 3 embodiment with operation principle, so does not repeat them here by DC power supply power supply again after inverter 4 is converted to alternating current.
Fig. 5 shows the principle frame of another preferred embodiment of EL sheet lighting circuit of the present invention.With reference to embodiment illustrated in fig. 3, in integrated circuit (IC) chip 3, increase one second judging unit 33 newly, between DC power supply and EL sheet 1, be connected switching device 5, the branch road of switching device 5 is in parallel with the branch road of integrated circuit (IC) chip 3.
Fig. 6 shows the principle frame of another preferred embodiment of EL sheet lighting circuit of the present invention.Comparison diagram 5 embodiment, difference only is that supply module replaces with the combination of DC power supply and inverter from AC power.So its operation principle also repeats no more.
The EL sheet lighting circuit of above-mentioned each embodiment is applied in the microwave oven, the invention provides the microwave oven that has EL sheet lighting circuit.This microwave oven comprises housing, is positioned at Lighting Division and a diverter switch of housing front face side.The bottom of Lighting Division is provided with EL sheet lighting circuit as backlight, and lighting circuit links to each other with diverter switch, and chip controls signal generation unit receives the operation of user to diverter switch, with the chip controls signal that produces closure or disconnect the EL sheet to gate-controlled switch.
The concrete enforcement of EL sheet lighting circuit is disclosed by above-mentioned each embodiment, does not repeat them here.
Should be understood that inventive point of the present invention is to have introduced gate-controlled switch, integrated circuit (IC) chip, operation that can be by detecting the user or the operating state that changes the EL sheet is set, make it is not to be in luminance always, therefore the useful life that can improve the EL sheet.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (10)
1. an EL sheet lighting circuit is characterized in that, this lighting circuit comprises:
At least one EL sheet;
Supply module with those EL sheet electric connections;
Be arranged on the gate-controlled switch on this supply module internal wiring, the signal folding of receiving according to its signal controlling termination;
With the integrated circuit (IC) chip that the signal controlling end of this gate-controlled switch is connected, wherein this integrated circuit (IC) chip further comprises:
One first judging unit detects and sends first signal when user operates, and detects to send secondary signal after the user satisfies preset value without any the state duration of operating;
One chip controls signal generation unit, the chip controls signal that produces a closed EL sheet when receiving first signal that this first judging unit sends is to this gate-controlled switch, produces one and open circuit the chip controls signal of EL sheet to this gate-controlled switch when receiving the secondary signal that this first judging unit sends.
2. EL sheet lighting circuit according to claim 1 is characterized in that, the operation that this chip controls signal generation unit receives the user produces the chip controls signal of closed or the EL sheet that opens circuit to this gate-controlled switch.
3. EL sheet lighting circuit according to claim 1, it is characterized in that, between this supply module and those EL sheet, be connected with a switching device, this switching device is in parallel with the branch road that this gate-controlled switch and integrated circuit (IC) chip are formed, and chip controls voltage of signals and frequency that the switch controlling signal that this switching device sends and this chip controls signal generation unit generate are inequality.
4. EL sheet lighting circuit according to claim 3 is characterized in that this switching device comprises high-tension transformer and converter plant.
5. EL sheet lighting circuit according to claim 3 is characterized in that, this integrated circuit (IC) chip also comprises one second judging unit, closes this chip controls signal generation unit when the switch controlling signal that detects this switching device is effective.
6. microwave oven that has the EL sheet lighting circuit, the Lighting Division and one that comprise housing, is positioned at the housing front face side switches switch, it is characterized in that, the bottom of this Lighting Division is provided with an EL sheet lighting circuit as backlight, this lighting circuit links to each other with this diverter switch, and wherein this EL sheet lighting circuit comprises:
At least one EL sheet;
Supply module with those EL sheet electric connections;
Be arranged on the gate-controlled switch on this supply module internal wiring, the signal folding of receiving according to its signal controlling termination;
With the integrated circuit (IC) chip that the signal controlling end of this gate-controlled switch is connected, this integrated circuit (IC) chip further comprises:
One first judging unit detects and sends first signal when user operates, and detects to send secondary signal after the user satisfies preset value without any the state duration of operating;
One chip controls signal generation unit, the chip controls signal that produces a closed EL sheet when receiving first signal that this first judging unit sends is to this gate-controlled switch, produces one and open circuit the chip controls signal of EL sheet to this gate-controlled switch when receiving the secondary signal that this judging unit sends.
7. the microwave oven that has the EL sheet lighting circuit according to claim 6, it is characterized in that, this chip controls signal generation unit receives the operation of user to this diverter switch, with produce closure or the chip controls signal of the EL sheet that opens circuit to this gate-controlled switch.
8. the microwave oven that has the EL sheet lighting circuit according to claim 6, it is characterized in that, between this supply module and those EL sheet, be connected with a switching device, this switching device is in parallel with the branch road that this gate-controlled switch and integrated circuit (IC) chip are formed, and chip controls voltage of signals and frequency that the switch controlling signal that this switching device sends and this chip controls signal generation unit generate are inequality.
9. the microwave oven that has the EL sheet lighting circuit according to claim 8 is characterized in that this switching device comprises high-tension transformer and converter plant.
10. the microwave oven that has the EL sheet lighting circuit according to claim 8, it is characterized in that, this integrated circuit (IC) chip also comprises one second judging unit, closes this chip controls signal generation unit when the switch controlling signal that detects this switching device is effective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100376518A CN101247685B (en) | 2007-02-16 | 2007-02-16 | Electroluminescent illumination circuit and microwave oven with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100376518A CN101247685B (en) | 2007-02-16 | 2007-02-16 | Electroluminescent illumination circuit and microwave oven with the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101247685A CN101247685A (en) | 2008-08-20 |
| CN101247685B true CN101247685B (en) | 2010-08-04 |
Family
ID=39947811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100376518A Expired - Fee Related CN101247685B (en) | 2007-02-16 | 2007-02-16 | Electroluminescent illumination circuit and microwave oven with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101247685B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6144164A (en) * | 1996-07-05 | 2000-11-07 | Fuji Polymertech Co., Ltd. | Dynamic EL lighting with a single power source |
| CN1420712A (en) * | 2001-11-19 | 2003-05-28 | 胜华科技股份有限公司 | Electrochromic Inorganic Electroluminescent Components |
| CN1888567A (en) * | 2005-06-27 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Microwave oven and microwave oven lamp controlling method |
-
2007
- 2007-02-16 CN CN2007100376518A patent/CN101247685B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6144164A (en) * | 1996-07-05 | 2000-11-07 | Fuji Polymertech Co., Ltd. | Dynamic EL lighting with a single power source |
| CN1420712A (en) * | 2001-11-19 | 2003-05-28 | 胜华科技股份有限公司 | Electrochromic Inorganic Electroluminescent Components |
| CN1888567A (en) * | 2005-06-27 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Microwave oven and microwave oven lamp controlling method |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-147768A 2002.05.22 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101247685A (en) | 2008-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101884251A (en) | Two-wire dimmer circuit for a screw-in compact fluorescent lamp | |
| CN104883799B (en) | Control method, control circuit, system and LED lamp for LED driving | |
| US20100295478A1 (en) | Led driving circuit | |
| CN109842973A (en) | Electric power distribution | |
| US20100283328A1 (en) | Supply Arrangement, Supply Unit and Method for Supplying an Electronic Unit | |
| CN106922052B (en) | LED lamp control device compatible with voltage dimming and PWM dimming | |
| CN101247685B (en) | Electroluminescent illumination circuit and microwave oven with the same | |
| US20190208590A1 (en) | Light-emitting diode lighting system with dimming function | |
| CN101965079B (en) | Method for operating lighting devices | |
| CN106489303A (en) | phase cut power control | |
| CN201854475U (en) | Light-emitting diode driving device | |
| CN205611031U (en) | Illumination lamp driving circuit with function of gradually going out | |
| CN106163018B (en) | A kind of LEDy street lamp device and communication means for ac power supply system | |
| CN102595751B (en) | Double-line intelligent dimming ballast | |
| CN101043780B (en) | Road lamp electricity-saving method and electricity-saving device | |
| CN107770936B (en) | Roam lamp control device, street lamp and street lamp system for tracking | |
| CN201541380U (en) | Filament preheating and rectifying device | |
| CN201267050Y (en) | Electronic light regulator | |
| CN202496126U (en) | Double-line intelligent dimming ballast | |
| CN106332359B (en) | A kind of exchange roam lamp control device and method | |
| CN202750276U (en) | LED (Light Emitting Diode) dimmer switch power supply apparatus | |
| CN204441218U (en) | Circuit breaker and load indicator light | |
| CN104822217B (en) | A kind of electrodeless florescent lamp light-dimming method controlling duty ratio using bifrequency square-wave pulse signal generator | |
| CN219697948U (en) | Circuit for PWM dimming control in auxiliary falling lamp dimming | |
| EP1045623A2 (en) | A dimmer and dimming lighting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20130216 |