CN202972601U - Optically controlled LED tubing lamp - Google Patents
Optically controlled LED tubing lamp Download PDFInfo
- Publication number
- CN202972601U CN202972601U CN2012205465923U CN201220546592U CN202972601U CN 202972601 U CN202972601 U CN 202972601U CN 2012205465923 U CN2012205465923 U CN 2012205465923U CN 201220546592 U CN201220546592 U CN 201220546592U CN 202972601 U CN202972601 U CN 202972601U
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- light
- unit
- constant current
- signal
- driving unit
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses an optically controlled LED tubing lamp which comprises a lamp tube, a power supply driving unit mounted inside the lamp tube, a light intensity detecting unit, an LED lighting unit, a constant-current driving unit and a signal processing unit, wherein the light intensity detecting unit is used for detecting outside light intensity so as to obtain optical detection signals; standard values are stored inside the signal processing unit, and the signal processing unit is used for obtaining light intensity control signals by comparing the optical detection signals with the standard values; and the constant-current driving unit controls the luminous intensity of the LED lighting unit according to the light intensity control signals, and the power supply driving unit is connected with an external power supply and outputs power supply signals to the LED lighting unit. The optically controlled LED tubing lamp provided by the utility model is a built-in integrated tubing lamp, can allow all functional modules to be arranged inside the lamp tube, is simple to mount and convenient to use, can solve the problem of electricity wastes caused by no lighting in a dark day and lighting in a bright day or over bright lighting, and is energy-saving and practical.
Description
Technical field
The utility model relates to a kind of LED spot, relates in particular to a kind of light-operated LED spot.
Background technology
development along with the semiconductor lighting technology, the LED lamp is universal gradually, but in use also also have some shortcomings, such as all having acoustic control or need long-term LED spot in a lot of places (as some public places such as stair and corridors), even this class LED spot also continues to send high light by day, the serious waste electric energy, in order to address this problem, when prior art connects up in bracing wire, some and the optical inductor of LED spot electrical connection and the lamp support corresponding with optical inductor are set, thereby the light of varying strength is sent in the extraneous brightness that makes the LED spot sense according to optical inductor, although solve like this waste problem, yet because this class optical inductor and LED spot are split-type structural, need consider when not only installing optical inductor installation and and the LED spot between wiring, also exist the problem of power line interference holding wire, susceptibility is controlled in impact.
Therefore, be badly in need of a kind of Novel light-operated intelligent LED spot that addresses the above problem, not only easy for installation, and energy-conservation, precise control.
The utility model content
The purpose of this utility model is to provide a kind of light-operated LED spot, and this light-operated LED spot is easy for installation, and energy-conservation, precise control.
For on realizing, purpose is arranged, the utility model discloses a kind of light-operated LED spot, comprise fluorescent tube and be installed on light intensity detection unit in described fluorescent tube, LED luminescence unit, constant current driving unit, signal processing unit and the power drives unit, described light intensity detection unit comprises photoinduction probe, for detection of ambient light intensity to obtain light detecting signal; Store the size of standard value and more described light detecting signal and standard value in described signal processing unit to obtain the luminous intensity control signal; Described constant current driving unit one end is connected with described signal processing unit, and the other end is connected with described LED luminescence unit, and controls the luminous intensity of described LED luminescence unit according to described luminous intensity control signal; Described power drives unit input termination external power source also is converted into power supply signal output so that said units is powered.
Compared with prior art, on the one hand, the utility model is built-in integrated spot (comprising T8 or T10LED pipe), all functional modules and parts can be built in fluorescent tube, during installation, only need L and the N line of incoming transport electricity to get final product, install simple, easy to use.On the other hand, the utlity model has light intensity detection unit, and described signal processing unit is controlled the luminosity of LED luminescence unit by the power that compares extraneous light, thereby make the light-operated LED spot described in the utility model can be with an automatic light meter according to ambient brightness bright, solve the reasons such as seasonal time difference, region time difference and weather, occur daytime too secretly and not bright light and daytime too bright turning on light or the problem of the bright expense electricity of light, even if also can adjust according to ambient brightness the brightness of fluorescent tube, energy-saving practical in the time of the total solar eclipse that occurs not meeting in 10 years.On the other hand, the driver element of constant current has guaranteed the current constant by the light-operated LED spot, has guaranteed the temperature perseverance that the light-operated LED spot produces, thereby has guaranteed the spot life-time dilatation.
Preferably, described light intensity detection unit also comprises filtering and amplifying circuit, and described photoinduction probe detects ambient light intensity to obtain photoelectric current, and described filtering and amplifying circuit carries out amplification filtering to described photoelectric current and processes to obtain light detecting signal.
Preferably, described signal processing unit is the MCU processor, it comprises Analog to Digital Converter section, handling part and PWM efferent, described Analog to Digital Converter section is converted to data signal with described light detecting signal, the more described data signal of described handling part and standard value, described PWM efferent is according to the luminous intensity control signal of the comparative result output duty ratio corresponding of described handling part.This scheme also makes the utility model be suitable for back-up source, described signal processing unit can be processed and PWM output identifies current use is AC power supplies or back-up source by signal, with self-adjusting luminosity, to reach the needs of Emergency Light, can also guarantee well the needs that throw light on.
Preferably, described fluorescent tube comprises housing, be installed on the lamp holder at described housing two ends and be installed on aluminium base in described housing, described aluminium base is isolated into the cavity in described housing luminous chamber and controls chamber, described LED luminescence unit is installed on described luminous chamber, and described photoinduction probe is installed on the position of lamp holder and is revealed in a side of described fluorescent tube printing opacity.
Preferably, described constant current driving unit comprises constant current IC, switching tube and current-limiting resistance, described constant current IC one termination luminous intensity control signal, switching frequency and the dutycycle of the control end of the one described switching tube of termination to control described switching tube, described switching tube input termination LED luminescence unit, the input of output termination current-limiting resistance, the feedback end of the described constant current IC of input termination of described current-limiting resistance, output head grounding ground connection.
Particularly, described constant current driving unit is isolated constant current driving unit, described constant current driving unit also comprises isolating transformer, an elementary termination power signal of described isolating transformer, the described switching tube input of another termination, described isolating transformer secondary connect described LED luminescence unit, have guaranteed the safety the when people touches fluorescent tube, also guarantee simultaneously the safety of LED lamp, be not easy to be subject to the conflict of high voltage pulse.
Preferably, described photoinduction probe comprises photo resistance.
preferably, described light-operated LED spot has two kinds of light-emitting modes: full brightness light-emitting mode and 30% brightness light-emitting mode, the size of the more described light detecting signal of described signal processing unit and standard value, and control described LED luminescence unit by described constant current driving unit at described light detecting signal during greater than described standard value and send 100% light so that described light-operated LED spot enters the full brightness light-emitting mode, control described LED luminescence unit by described constant current driving unit at described light detecting signal during less than described standard value and send 30% light so that described light-operated LED spot enters 30% brightness light-emitting mode.
Description of drawings
Fig. 1 is the structure chart of light-operated LED spot described in the utility model.
Fig. 2 is the cut-away view of light-operated LED spot described in the utility model.
Fig. 3 is the structured flowchart of light-operated LED spot described in the utility model.
Fig. 4 is the part-structure block diagram of light-operated LED spot described in the utility model.
Fig. 5 is the circuit diagram of the constant current driving unit of light-operated LED spot described in the utility model.
The specific embodiment
By describing technology contents of the present utility model, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Referring to figs. 1 to Fig. 3, disclosed a kind of light-operated LED spot, this light-operated LED spot 100 comprises fluorescent tube 10, be installed on light intensity detection unit 20 in described fluorescent tube 10, LED luminescence unit 50, constant current driving unit 40, signal processing unit 30 and power drives unit 60.Described light intensity detection unit 20 detects ambient light intensity to obtain light detecting signal; Store the size of standard value and more described light detecting signal and standard value in described signal processing unit 30 to obtain the luminous intensity control signal; Described constant current driving unit 40 1 ends are connected with described signal processing unit 30, and the other end is connected with described LED luminescence unit 50, and control the luminous intensity of described LED luminescence unit 50 according to described luminous intensity control signal; Described power drives unit 60 input termination external power sources, output out-put supply signal VCC is to described signal processing unit 30 and constant current driving unit 40.
With reference to figure 4, described light intensity detection unit 20 comprises photoinduction probe 21 and filtering and amplifying circuit 22, the luminous intensity that described photoinduction probe 21 contacts are outside also obtains photoelectric current, and described filtering and amplifying circuit 22 is connected and described photoelectric current is carried out amplification filtering process to obtain light detecting signal with described photoinduction probe 21.Wherein, described photoinduction probe 21 comprises photo resistance, not necessarily one of the quantity of described smooth detection probe 21.
With reference to figure 2, described fluorescent tube 10 comprises housing 11, be installed on the lamp holder 12 at described housing 11 two ends and be installed on aluminium base 13 in described housing 11, described aluminium base 13 is isolated into the cavity in described housing 11 luminous chamber 14 and controls chamber 15, described LED luminescence unit is installed on described luminous chamber 14, and described photoinduction probe 21 is installed on the position of lamp holder 12 and is revealed in a side of described fluorescent tube 10 printing opacities.
With reference to figure 4, described signal processing unit 30 is the MCU processor, it comprises Analog to Digital Converter section 31, handling part 32 and PWM efferent 33, described Analog to Digital Converter section 31 is converted to data signal with described light detecting signal, the more described data signal of described handling part 32 and standard value, described PWM efferent 33 is according to the luminous intensity control signal of the comparative result output duty ratio corresponding of described handling part 32.
With reference to figure 5, described constant current driving unit 40 comprises constant current IC, switching tube Q1, current-limiting resistance R1 and isolating transformer T1.During work, PWM efferent 33 is with 3 pin of luminous intensity control signal from A pin input constant current IC, constant current IC is according to frequency and the dutycycle of the Signal Regulation switching tube Q1 switch of 3 pin, flow through the input of switching tube Q1 by the elementary power supply signal VCC that connects of isolating transformer T1, output termination current-limiting resistance R1, and by current-limiting resistance R1, current signal is fed back to 4 pin of constant current IC from the B pin, constant current IC adjusts according to luminous intensity control signal signal and the feedback signal of input, thereby the electric current that LED luminescence unit 50 uses reaches dynamically constant.
Wherein, the described light-operated LED spot 100 of the present embodiment has two kinds of light-emitting modes: full brightness light-emitting mode and 30% brightness light-emitting mode, during work, the photo resistance of described photoinduction probe 21 feels that light can produce photoelectric current, current flowing resistance is to ground, will produce a voltage on resistance, the size of this voltage is into certain proportionate relationship with brightness.22 pairs of described photoelectric currents of described filtering and amplifying circuit amplify with filtering to strengthen the signal acquisition light detecting signal, 22 pairs of photoelectric currents of filtering and amplifying circuit described in the utility model first carry out amplification and the filtering of 4 times, the signal that carries out again 20 times of the second level amplifies, then by exporting the level formula light detecting signal of direct current after filtering; Signal processing unit (MCU processor) 30 inputted light detecting signal from the I/O mouth, and be converted into data signal by pattern converter section 31, the more described data signal of handling part 32 and standard value, the standard value of setting when the data signal ratio that now reads is high, make PWM efferent 33 set the PWM ripple signal of dutycycle from the assigned I of MCU processor/O mouth output, the PWM ripple signal of the utility model output duty cycle 30%, i.e. luminous intensity control signal; When the data signal that now reads is lower than the standard value of setting, make PWM efferent 33 from the MCU processor assigned I/O mouth output duty cycle is 100% high level signal, i.e. luminous intensity control signal; Described constant current driving unit 40 is regulated frequency and the dutycycle of the switch of the pipe Q1 that opens the light in constant current driving unit 40 according to the luminous intensity control signal that comprises duty cycle information, thereby the electric current of gauge tap pipe Q1, and make its maintenance dynamically constant, because constant current driving unit 40 is isolated driver element, the electric current that flows through switching tube Q1 passes through the isolating transformer of constant current driving unit 40 from secondary output, again by after diode rectification and electrochemical capacitor filtering, by positive pole input, the negative pole output of high temperature wire from LED luminescence unit 50.
Certainly, the utility model is not limited to two sections light modulations, also can be according to the difference of dutycycle to realize three sections, four sections even stepless dimmings.
Above disclosed is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (8)
1. light-operated LED spot is characterized in that: comprising:
Fluorescent tube;
Light intensity detection unit is installed in described fluorescent tube and comprises the photoinduction probe, and described light intensity detection unit detects ambient light intensity to obtain light detecting signal;
Signal processing unit is installed in described fluorescent tube, is stored with the size of standard value and more described light detecting signal and standard value to obtain the luminous intensity control signal;
The LED luminescence unit;
Constant current driving unit, an end is connected with described signal processing unit, and the other end is connected with described LED luminescence unit, and controls the luminous intensity of described LED luminescence unit according to described luminous intensity control signal;
The power drives unit, input termination external power source, output out-put supply signal is to power to said units.
2. light-operated LED spot as claimed in claim 1, it is characterized in that: described light intensity detection unit also comprises filtering and amplifying circuit, described photoinduction probe detects ambient light intensity to obtain photoelectric current, and described filtering and amplifying circuit carries out amplification filtering to described photoelectric current and processes to obtain light detecting signal.
3. light-operated LED spot as claimed in claim 1, it is characterized in that: described signal processing unit is the MCU processor, it comprises Analog to Digital Converter section, handling part and PWM efferent, described Analog to Digital Converter section is converted to data signal with described light detecting signal, the more described data signal of described handling part and standard value, described PWM efferent is according to the luminous intensity control signal of the comparative result output duty ratio corresponding of described handling part.
4. light-operated LED spot as claimed in claim 1, it is characterized in that: described fluorescent tube comprises housing, be installed on the lamp holder at described housing two ends and be installed on aluminium base in described housing, described aluminium base is isolated into the cavity in described housing luminous chamber and controls chamber, described LED luminescence unit is installed on described luminous chamber, and described photoinduction probe is installed on the lamp holder place and is revealed in a side of described fluorescent tube printing opacity.
5. light-operated LED spot as claimed in claim 1, it is characterized in that: described constant current driving unit comprises constant current IC, switching tube and current-limiting resistance, described constant current IC one termination luminous intensity control signal, switching frequency and the dutycycle of the control end of the one described switching tube of termination to control described switching tube, described switching tube input termination LED luminescence unit, the input of output termination current-limiting resistance, the feedback end of the described constant current I of the input termination C of described current-limiting resistance, output head grounding ground connection.
6. light-operated LED spot as claimed in claim 5, it is characterized in that: described constant current driving unit is isolated constant current driving unit, described constant current driving unit also comprises isolating transformer, an elementary termination power signal of described isolating transformer, the described switching tube input of another termination, described isolating transformer secondary connect described LED luminescence unit.
7. light-operated LED spot as claimed in claim 1 is characterized in that: described photoinduction probe comprises photo resistance.
8. light-operated LED spot as claimed in claim 1, it is characterized in that: described light-operated LED spot has two kinds of light-emitting modes: full brightness light-emitting mode and 30% brightness light-emitting mode, the size of the more described light detecting signal of described signal processing unit and standard value, and control described LED luminescence unit by described constant current driving unit at described light detecting signal during greater than described standard value and send 100% light so that described light-operated LED spot enters the full brightness light-emitting mode, control described LED luminescence unit by described constant current driving unit at described light detecting signal during less than described standard value and send 30% light so that described light-operated LED spot enters 30% brightness light-emitting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205465923U CN202972601U (en) | 2012-10-23 | 2012-10-23 | Optically controlled LED tubing lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205465923U CN202972601U (en) | 2012-10-23 | 2012-10-23 | Optically controlled LED tubing lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202972601U true CN202972601U (en) | 2013-06-05 |
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ID=48513673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205465923U Expired - Fee Related CN202972601U (en) | 2012-10-23 | 2012-10-23 | Optically controlled LED tubing lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202972601U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105873297A (en) * | 2016-06-02 | 2016-08-17 | 李广元 | Light control circuit and lamp applying light control circuit |
| TWI569686B (en) * | 2015-07-30 | 2017-02-01 | Chen Yang | Can automatically dim the lighting structure |
| CN113645744A (en) * | 2021-08-12 | 2021-11-12 | 江门市普州照明有限公司 | Self-dimming lamp tube and dimming method |
-
2012
- 2012-10-23 CN CN2012205465923U patent/CN202972601U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI569686B (en) * | 2015-07-30 | 2017-02-01 | Chen Yang | Can automatically dim the lighting structure |
| CN105873297A (en) * | 2016-06-02 | 2016-08-17 | 李广元 | Light control circuit and lamp applying light control circuit |
| CN113645744A (en) * | 2021-08-12 | 2021-11-12 | 江门市普州照明有限公司 | Self-dimming lamp tube and dimming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |