CN103836407B - Lighting device with dimming and heat dissipation functions and fan thereof - Google Patents
Lighting device with dimming and heat dissipation functions and fan thereof Download PDFInfo
- Publication number
- CN103836407B CN103836407B CN201210525893.2A CN201210525893A CN103836407B CN 103836407 B CN103836407 B CN 103836407B CN 201210525893 A CN201210525893 A CN 201210525893A CN 103836407 B CN103836407 B CN 103836407B
- Authority
- CN
- China
- Prior art keywords
- fan
- electrically connected
- voltage
- lighting device
- motor
- 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
- 230000017525 heat dissipation Effects 0.000 title abstract 3
- 238000004020 luminiscence type Methods 0.000 claims description 61
- 230000005611 electricity Effects 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000004146 energy storage Methods 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a lighting device with dimming and heat dissipation functions, which is used for solving the problem that the lighting process cannot be dimmed. The invention also discloses a fan for the lighting device, which is used for solving the problem of light source flicker caused by the lighting device in the dimming process. Therefore, the lighting device has the functions of dimming and heat dissipation, and the phenomenon of light source flickering cannot occur in the dimming process.
Description
Technical field
The invention relates to a kind of lighting device, especially a kind of lighting device having light modulation and heat sinking function concurrently.
Background technology
Because environmental protection and energy saving concept comes into one's own day by day, the light emitting source of lighting device (such as: incandescent lamp and Halogen lamp LED etc.) is eliminated gradually and changes, the substitute is the element that luminous efficiency is higher, such as: power-saving lighting tube or light emitting diode (LED) etc.Wherein, LED has that reaction is fast, the life-span long and the not advantage such as cracky, precisely because the heat energy impact that luminous efficacy produces when being easily subject to luminescence, therefore heat abstractor (such as: fan etc.) need be adopted to assist heat extraction, to avoid luminous efficacy and the service life of thus reducing LED.
Refer to shown in Fig. 1, as TaiWan, China announces the LED illumination module new patent case that No. M381031 has heat radiation and automatic circuit break function concurrently, disclose a kind of existing lighting device 9, this lighting device 9 is mutually connected in series by an electric power supply unit, several LED luminescence unit and a radiating component (such as: fan etc.) to form a series loop, when this radiating component is damaged, the power supply source of this LED luminescence unit is interrupted immediately, avoids this LED luminescence unit to damage because of overheated.
Just, due in this series loop, the output current of this electric power supply unit cannot adjust, and this LED luminescence unit only can input the fixed current that this electric power supply unit provides, and sends the light source of constant brightness.Therefore, when the luminosity of this LED luminescence unit cannot adjust, not only can cause inconvenience during use, and will the application of this lighting device 9 is restricted.
In sum, during existing lighting device 9 practice, except there being the problem that cannot adjust luminosity, also can cause the doubt that application is limited, when reality uses, more derivative difference restriction and shortcoming, truly have inconvenience, need further improvement badly, promote its practicality.
Summary of the invention
Object of the present invention is improve above-mentioned shortcoming, to provide a kind of lighting device with light modulation and heat sinking function, when this lighting device supply lighting source, can adjust the brightness of this light source.
Of the present invention time an object is to provide a kind of lighting device with light modulation and heat sinking function, when this lighting device supply lighting source, can get rid of the heat that luminescence process produces.
Another object of the present invention is to provide a kind of fan, is applicable to the lighting device with light modulation and heat sinking function, is carry out in dimming process in this lighting device, avoids this fan electrical current too low and cause light source scintillation.
There is a lighting device for light modulation and heat sinking function, comprise: an adjustment unit, be provided with one enter electric port and one go out electric port, this enters electric port in order to connect an external power supply, this go out electric port in order to export one adjustment electric power; A power supply unit, is provided with a transmission of electricity port, a positive terminal and a negative electricity end, and what this transmission of electricity port was electrically connected this adjustment unit goes out electric port, and transfer this adjustment electric power to a stabling current for this power supply unit, this positive terminal is in order to export this stabling current; A luminescence unit, be provided with a first end and second end, this first end is electrically connected the positive terminal of this power supply unit; And a fan, be provided with an input and an output, this input is electrically connected the second end of this luminescence unit, and this output is electrically connected the negative electricity end of this power supply unit.
Wherein, this fan comprises a driver element and a motor, and this driver element is electrically connected between this input and this output, and this driver element is electrically connected this motor, drives this motor in order to produce a direct current signal.
Wherein, this fan comprises a voltage-controlled loop, a driver element and a motor, this voltage-controlled loop is electrically connected between this input and this output, in order to produce a reference voltage, this driver element is electrically connected this voltage-controlled loop and this motor, in order to produce a pwm signal according to this reference voltage, and drive this motor by this pwm signal.
Wherein, this fan comprises a voltage-controlled loop, a driver element and a motor, this voltage-controlled loop is electrically connected between this input and this output, in order to produce a reference voltage, this driver element is electrically connected this voltage-controlled loop and this motor, in order to produce a direct current signal according to this reference voltage, and drive this motor by this direct current signal.
Wherein, this fan comprises a voltage-controlled loop, a driver element and a motor, this voltage-controlled loop is connected between this input and output by two resistor strings, and form a dividing point, this driver element has a power end, earth terminal, two drive ends and a reference edge, this power end and this earth terminal are electrically connected this input and this output respectively, and this drive end is electrically connected this motor, and this reference edge is electrically connected this dividing point.
Wherein, this fan is the DC fan with autoboot function.
Wherein, between the input of this fan and output, an energy-storage travelling wave tube is set.
Wherein, between the input of this fan and output, a voltage stabilizing element is set.
A kind of fan, be the lighting device for having light modulation and heat sinking function, this fan comprises: a voltage-controlled loop, is to input an electric current by one end, and produces a reference voltage by this electric current; A driver element, is electrically connected this voltage-controlled loop, and produces a drive singal according to this reference voltage, if this reference voltage is higher than a speed governing threshold value, then this drive singal is a direct current signal, otherwise this drive singal is a pwm signal; And a motor, be electrically connected this driver element, and driven by this drive singal, and drive a flabellum to rotate.
Wherein, when this reference voltage is lower than a stopping threshold value, this driver element exports the low level of this pwm signal.
Wherein, this voltage-controlled loop is connected in series by two resistors to form a dividing point, and this driver element has a reference edge and two drive ends, and this reference edge is electrically connected this dividing point, and this drive end is electrically connected this motor.
Wherein, this fan is the DC fan with autoboot function.
Accompanying drawing explanation
Fig. 1: the circuit diagram of existing lighting device.
Fig. 2: the present invention has the circuit diagram of the lighting device preferred embodiment of light modulation and heat sinking function.
Fig. 3: the present invention has the fan circuit embodiment () of the lighting device preferred embodiment of light modulation and heat sinking function.
Fig. 4: the present invention has the fan circuit embodiment (two) of the lighting device preferred embodiment of light modulation and heat sinking function.
[main element symbol description]
(the present invention)
1 adjustment unit
11 enter electric port 12 goes out electric port
2 power supply units
21 transmission of electricity port 22 positive terminal
23 negative electricity ends
3 luminescence units
31 first end 32 second ends
4 fans
41 input 42 outputs
43,43 ' driver element
431,431 ' power end 432,432 ' earth terminal
433,433 ' drive end 434 ' reference edge
44 motor 45 energy-storage travelling wave tubes
The 46 voltage-controlled loops of voltage stabilizing element 47
471 resistor 472 dividing points
P external power supply
(prior art)
9 existing lighting devices.
Detailed description of the invention
For above-mentioned and other object of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and coordinate accompanying drawing, be described in detail below:
Pulsewidth modulation (PulseWidthModulation described in the present invention in full, PWM), a high levle (i.e. logical one is comprised in each cycle referring to pulse wave signal, such as: 5 volts) and a low level (i.e. logical zero, such as: 0 volt), electronic switch can be energized and power-off, and wherein this high levle accounts for the time scale value of single one-period is work period (DutyCycle), is that persond having ordinary knowledge in the technical field of the present invention is understandable.
Rated voltage (nominalvoltage) described in the present invention in full, refer to an optimum voltage value when fan works long hours (namely operating), make this fan can keep preferably duty, persond having ordinary knowledge in the technical field of the present invention is appreciated that.
Operating voltage (workingvoltage) described in the present invention in full, refer to the minimum voltage value that can drive a fan running, if lower than this minimum voltage value, then this fan will shut down, and be that persond having ordinary knowledge in the technical field of the present invention is understandable.
Refer to shown in Fig. 2, it is the circuit diagram that the present invention has the lighting device preferred embodiment of light modulation and heat sinking function.Wherein, this lighting device with light modulation and heat sinking function comprises an adjustment unit 1, power supply unit 2, luminescence unit 3 and a fan 4, this adjustment unit 1 is electrically connected this power supply unit 2, the serial connection formation series loop mutually of this power supply unit 2, luminescence unit 3 and fan 4.
This adjustment unit 1 is better selects the electronic component or circuit with dimming function, such as: existing TRIAC dimmer (TRIACdimmer) etc., this adjustment unit 1 be provided with one enter electric port 11 and one go out electric port 12, this enters electric port 11 in order to be electrically connected an external power supply P, such as: AC power, to input an alternating electromotive force, an adjustment electric power is produced for this adjustment unit 1, such as: this adjustment unit 1 can according to the light modulation demand of user, and this AC power is transferred to one to should the alternating voltage of light modulation demand, using this alternating voltage as this adjustment electric power, this goes out electric port 12 and is electrically connected this power supply unit 2, in order to export this adjustment electric power, to adjust the luminosity (brightness) of this luminescence unit 3 and the rotating speed (rotatingspeed) of this fan 4 by the size of this adjustment electric power.In this embodiment, this adjustment unit 1 is using existing TRIAC dimmer as embodiment, just not as limit.
This power supply unit 2 is better selects the electronic component or circuit with rectification and flow stabilizing function, such as: determine current generating circuit composition with existing rectification circuit collocation, this is determined current generating circuit and is chosen as the constant-current circuit etc. determined electric current integrated circuit (IC) or form with operational amplifier (OPA), only not as limit.This power supply unit 2 is provided with a transmission of electricity port 21, a positive terminal 22 and a negative electricity end 23, what this transmission of electricity port 21 was electrically connected this adjustment unit 1 goes out electric port 12, in order to input this adjustment electric power, after this power supply unit 2 carries out rectification and electric current is determined in generation, a stabling current (such as: DC current) can be exported by this positive terminal 22, this luminescence unit 3 and fan 4 is connected in series between this positive terminal 22 with this negative electricity end 23, so that by this stabling current for should operating current needed for luminescence unit 3 and fan 4, with the flicker problem avoiding the electric current of this luminescence unit 3 shakiness to cause.In this embodiment, this power supply unit 2 determines current generating circuit as embodiment using existing, just not as limit.
The better illuminating module selecting light emitting diode (LED) to form of this luminescence unit 3, such as: the series, parallel be made up of several white light LEDs or series/parallel circuit etc., the connected mode of this series, parallel or series/parallel circuit is that to know this those skilled in the art understandable, does not repeat in this appearance.This luminescence unit 3 is provided with a first end 31 and second end 32, this first end 31 is electrically connected the positive terminal 22 of this power supply unit 2, in order to input this stabling current, order about this luminescence unit 3 and transfer electric energy to luminous energy, using as the light source needed for lighting use, wherein the luminosity of this light source can be controlled by the magnitude of current of this stabling current, is to know this those skilled in the art to be appreciated that and not repeat in this appearance; This second end 32 is electrically connected this fan 4, in order to output current to this fan 4.In this embodiment, this luminescence unit 3 comprises several LED strip and connects group as embodiment, and wherein to connect group parallel with one another for this several LED strip, and it is joined by several LED strip to form, just not as limit that each LED strip connects group; The LED that wherein each LED strip connects one end of group forms this first end 31 with anode (anode), and the LED that each LED strip connects the other end of group forms this second end 32 with negative electrode (cathode).
The better fan (Fan) selecting existing DC driven of this fan 4, such as: the DC fan etc. with temperature control, dust-proof, waterproof, frequency conversion or autoboot (auto-restarting) function, just as limit.This fan 4 is provided with an input 41 and an output 42, this input 41 is electrically connected the second end 32 of this luminescence unit 3, this fan 4 is flowed into by this input 41 for DC current, and then drive this fan 4 to produce air-flow to disperse the heat that this luminescence unit 3 produces in luminescence process, the throughput that wherein this fan 4 produces can be controlled by this stabling current, understandable for knowing this those skilled in the art, do not repeat in this appearance; This output 42 is electrically connected the negative electricity end 23 of this power supply unit 2, so that the electric current flowed out by the output 42 of this fan 4 can flow into this power supply unit 2 by this negative electricity end 23.In this embodiment, this fan 4 be there is autoboot function DC fan as embodiment, just not as limit.
Refer to shown in Fig. 3, it is the fan circuit embodiment () that the present invention has the lighting device preferred embodiment of light modulation and heat sinking function, wherein, this fan 4 inside is provided with a driver element 43 and a motor 44, better the selecting of this driver element 43 has the motor driver that direct current signal produces function, this driver element 43 has a power end 431, an earth terminal 432 and two drive ends 433, this power end 431 and earth terminal 432 are electrically connected this input 41 and output 42 respectively, in order to input this stabling current, a direct current signal is produced as a drive singal for this driver element 43, this drive end 433 is electrically connected the stator coil of this motor 44, to order about this motor 44 continuous running by this direct current signal, and, this motor 44 can drive a flabellum to rotate and produce air-flow.Separately, between this input 41 and output 42, an energy-storage travelling wave tube 45 also can be set, change suddenly in order to avoid the voltage between this input 41 and output 42; Between this input 41 and output 42, a voltage stabilizing element 46 separately can be set, damage in order to avoid this driver element 44 impacted by instantaneous pressure.
The present invention has the lighting device preferred embodiment of light modulation and heat sinking function in time using, and can produce this stabling current, produce light source in order to drive this luminescence unit 3 by this power supply unit 2.Meanwhile, this stabling current can drive this fan 4 to produce air-flow and assist this luminescence unit 3 directly or indirectly to dispel the heat, such as: air-flow is blowed to this luminescence unit 3 or its radiating component, avoid this luminescence unit 3 to damage.Wherein, the size of this stabling current can also be finely tuned by this adjustment unit 1, adjust the luminosity of this luminescence unit 3 according to actual demand for user, adjust in the process of this luminosity user, this stabling current can be turned down, in order to reduce this luminosity, simultaneously, make the rotating speed of this fan 4 slack-off, the heat that this fan 4 produces under low-light level can be dispersed, and then reach the effect of saving electric power.
It should be noted that, if the DC fan with autoboot function selected by this fan 4, then when the driving voltage of this fan 4 is too low, this autoboot function will be enabled (enabled), such as: when the driving voltage of this fan 4 is lower than an operating voltage, this fan 4 will shut down, restart immediately and operate, now, if this driving voltage is still lower than this operating voltage, then this fan 4 can shut down again, and restart immediately and operate, this fan 4 is made repeatedly to occur " shutting down ", " again operate ", " shut down ", " again operate ", state, cause this power supply unit 2, the series loop that luminescence unit 3 and fan 4 are formed jointly repeatedly occurs " open circuit (off) ", " conducting (on) ", " open circuit (off) ", " conducting (on) ", state, this luminescence unit 3 is caused to occur the situation of light-emitting flash (glittering).Therefore, in present pre-ferred embodiments, the another kind of circuit embodiment of this fan 4 is provided, is not only applicable to the lighting device with light modulation and heat sinking function, and the situation of above-mentioned light-emitting flash can be avoided.
Refer to shown in Fig. 4, it is the fan circuit embodiment (two) that the present invention has the lighting device preferred embodiment of light modulation and heat sinking function, wherein, this fan 4 inside is provided with a driver element 43 ', this motor 44, this energy-storage travelling wave tube 45, this voltage stabilizing element 46 and a voltage-controlled loop 47, compared to this first embodiment, this driver element 43 ' selects the signal generator with Control of Voltage pulsewidth modulation (PWM) semiotic function, this driver element 43 ' has a power end 431 ', an earth terminal 432 ', two drive ends 433 ' and a reference edge 434 ', wherein this power end 431 ', earth terminal 432 ', drive end 433 ', motor 44, the set-up mode of energy-storage travelling wave tube 45 and voltage stabilizing element 46 is identical with this first embodiment, do not repeat in this appearance.This reference edge 434 ' is electrically connected this voltage-controlled loop 47, in order to input a reference voltage, a voltage control signal is produced as this drive singal according to this reference voltage for this driver element 43 ', wherein this voltage control signal is as pwm signal or direct current signal etc., and this voltage control signal can export this motor 44 to by this drive end 433 ', in order to order about this motor 44 continuous running.And, this voltage-controlled loop 47 is optional to be serially connected with between this input 41 and output 42 by two resistors 471, and form a dividing point 472, make the electric current inputting this input 41 can produce this reference voltage at this dividing point 472, this dividing point 472 is electrically connected the reference edge 434 ' of this driver element 43 ', in order to export this reference voltage to this driver element 43 ', wherein this reference voltage level can be adjusted by the resistance value ratio of these two resistors 471.
It should be noted that, when the luminosity of this luminescence unit 3 is turned down, the electric current flowing into this input 41 can reduce gradually, this reference voltage is reduced, and when this reference voltage changes, this driver element 43 ' can according to this reference voltage level, and adjust the form of this drive singal, such as: transferred to the pwm signal with two logic levels by the direct current signal with high levle, in order to drive this motor 44 continuous running, this luminescence unit 3 is avoided to occur the situation of light-emitting flash.
For example, when this reference voltage is still higher than a speed governing threshold value (as: rated voltage of this motor 44 or operating voltage etc.), this driver element 43 ' can export this direct current signal with high levle (as: rated voltage etc. of this reference voltage or this motor 44) by this drive end 433 ', in order to drive this motor 44 continuous running.
Refer to shown in lower list one, when being this reference voltage higher than this speed governing threshold value, the measurement voltage of this power supply unit 2, luminescence unit 3 and fan 4 and current value, from in table, when this current value is 40.2mA, this fan 4 can drive and continuous running via this direct current signal, to continue to dispel the heat to this luminescence unit 3, therefore, this luminescence unit 3 can not produce scintillation.
Table one, voltage and current measurement table ()
| Magnitude of voltage (V) | Current value (mA) | |
| This power supply unit 2 | 56.7 | 40.2 |
| This luminescence unit 3 | 44.9 | 40.2 |
| This fan 4 | 11.8 | 40.2 |
On the other hand, when this reference voltage is equal to or less than this speed governing threshold value, then this driver element 43 ' can export a pwm signal by this drive end 433 ', the work period of this pwm signal can adjust with reference to the voltage quasi position of this reference voltage, such as: if the luminosity of this luminescence unit 3 is lower, then the voltage quasi position of this reference voltage is lower, and the work period of this pwm signal is lower, the heat radiation air quantity making this motor 44 drive this flabellum to produce reduces, in other words, this heat radiation air quantity can reduce with the luminosity of this luminescence unit 3 and reduce by amount.Whereby, when this luminosity is turned down, no matter whether this reference voltage is lower than the operating voltage of this motor 44, all can drive this motor 44 continuous running by this pwm signal, avoid this luminescence unit 3 to occur the situation of light-emitting flash.
Refer to shown in lower list two, when being this reference voltage lower than this speed governing threshold value, the measurement voltage of this power supply unit 2, luminescence unit 3 and fan 4 and current value, from in table, when this current value is low to moderate 22.1mA, this fan 4 still can drive and continuous running, to dispel the heat to this luminescence unit 3 by this pwm signal, therefore, this luminescence unit 3 can not produce scintillation.
Table two, voltage and current measurement table (two)
| Magnitude of voltage (V) | Current value (mA) | |
| This power supply unit 2 | 52.91 | 22.1 |
| This luminescence unit 3 | 45 | 22.1 |
| This fan 4 | 7.91 | 22.1 |
And, when this reference voltage stops threshold value (such as: 15% of the operating voltage of this motor 44) lower than one, represent input this input 41 the magnitude of current very low (lower than 15mA), in other words, the luminosity of this luminescence unit 3 and the heat of generation very low; Now, this luminescence unit 3 need not dispelled the heat by this fan 4 wind dispelling, therefore this driver element 43 ' can be selected to stop producing this pwm signal, this drive end 433 ' is made to maintain the low level (namely the work period of this pwm signal is zero) exporting this pwm signal, and then this motor 44 is shut down, to reduce the power consumption that the present invention has the lighting device of light modulation and heat sinking function.Now, can conduct electricity via this voltage-controlled loop 47 between the input 41 of this fan 4 and output 42, make this luminescence unit 3 continuous illumination.
By the technological means of front taking off, the main feature that the present invention has the lighting device preferred embodiment of light modulation and heat sinking function is listed below: because this adjustment unit 1 is electrically connected this power supply unit 2, this power supply unit 2, luminescence unit 3 and fan 4 mutually serial connection form this series loop, therefore, the luminosity of this luminescence unit 3 and the rotating speed of this fan 4 is finely tuned by this adjustment unit 1, and produce this stabling current by this power supply unit 2, light source is produced in order to drive this luminescence unit 3, and drive this fan 4 to produce air-flow directly or indirectly to dispel the heat to this luminescence unit 3, this luminescence unit 3 is avoided to damage.
And, this fan 4 can also arrange this driver element 43 ' and voltage-controlled loop 47, to produce this reference voltage by this voltage-controlled loop 47, in order to control the drive singal type that this driver element 43 ' exports, such as: pwm signal or direct current signal etc., in order to drive this motor 44 continuous running.
Therefore, when the luminosity of this luminescence unit 3 is turned down, no matter whether this reference voltage is lower than the operating voltage of this motor 44, all can drive this motor 44 continuous running by this pwm signal, this fan 4 can not enter because electric current is under-supply " autoboot pattern " (auto-restartmode), and this luminescence unit 3 can be avoided when light modulation to occur the phenomenon of glimmering.
In sum, the present invention has the lighting device preferred embodiment of light modulation and heat sinking function, when this lighting device provides lighting source, can adjust the luminosity of this luminescence unit 3, therefore, there is the effects such as the good and field that can be applicable to need light modulation of ease of use.
Moreover, the present invention has the lighting device preferred embodiment of light modulation and heat sinking function, can when this lighting device provides lighting source, get rid of the heat that this luminescence unit 3 produces at luminescence process, this luminescence unit 3 is avoided to damage because of overheated, thus this fan 4 is damaged, therefore, can the effect that increases the service life be reached.
Separately, the present invention has the fan 4 of the lighting device preferred embodiment of light modulation and heat sinking function, be applicable to the lighting device with light modulation and heat sinking function, carry out in dimming process in this lighting device, avoid the electric current of this fan 4 too low and shut down, make can not glimmer in the luminescence process of this luminescence unit 3, to promote the comfort of user for lighting source.
Just above-described, be only preferred embodiment of the present invention, when not limiting the scope of the present invention with this; Therefore, all simple equivalences done according to the present patent application the scope of the claims and creation description change and modify, and all should still remain within the scope of the patent.
Claims (11)
1. there is a lighting device for light modulation and heat sinking function, it is characterized in that, comprise:
An adjustment unit, be provided with one enter electric port and one go out electric port, this enters electric port in order to connect an external power supply, this go out electric port in order to export one adjustment electric power;
A power supply unit, is provided with a transmission of electricity port, a positive terminal and a negative electricity end, and what this transmission of electricity port was electrically connected this adjustment unit goes out electric port, and transfer this adjustment electric power to a stabling current for this power supply unit, this positive terminal is in order to export this stabling current;
A luminescence unit, be provided with a first end and second end, this first end is electrically connected the positive terminal of this power supply unit; And
A fan, be provided with an input and an output, this input is electrically connected the second end of this luminescence unit, this output is electrically connected the negative electricity end of this power supply unit, this fan comprises a voltage-controlled loop, a driver element and a motor, this voltage-controlled loop is connected between this input and output by two resistor strings, and form a dividing point, this driver element has a power end, an earth terminal, two drive ends and a reference edge, this power end and this earth terminal are electrically connected this input and this output respectively, this drive end is electrically connected this motor, this reference edge is electrically connected this dividing point.
2. have the lighting device of light modulation and heat sinking function as claimed in claim 1, it is characterized in that, this driver element is electrically connected between this input and this output, and this driver element is electrically connected this motor, drives this motor in order to produce a direct current signal.
3. there is the lighting device of light modulation and heat sinking function as claimed in claim 1, it is characterized in that, this voltage-controlled loop is electrically connected between this input and this output, in order to produce a reference voltage, this driver element is electrically connected this voltage-controlled loop and this motor, in order to produce a pwm signal according to this reference voltage, and drive this motor by this pwm signal.
4. there is the lighting device of light modulation and heat sinking function as claimed in claim 1, it is characterized in that, this voltage-controlled loop is electrically connected between this input and this output, in order to produce a reference voltage, this driver element is electrically connected this voltage-controlled loop and this motor, in order to produce a direct current signal according to this reference voltage, and drive this motor by this direct current signal.
5. the lighting device with light modulation and heat sinking function as described in claim 1,2,3 or 4, is characterized in that, this fan is the DC fan with autoboot function.
6. the lighting device with light modulation and heat sinking function as described in claim 1,2,3 or 4, is characterized in that, arranges an energy-storage travelling wave tube between the input of this fan and output.
7. the lighting device with light modulation and heat sinking function as described in claim 1,2,3 or 4, is characterized in that, arranges a voltage stabilizing element between the input of this fan and output.
8. a fan, being the lighting device for having light modulation and heat sinking function, it is characterized in that, this fan comprises:
A voltage-controlled loop, is input an electric current by one end, and produces a reference voltage by this electric current;
A driver element, is electrically connected this voltage-controlled loop, and produces a drive singal according to this reference voltage, if this reference voltage is higher than a speed governing threshold value, then this drive singal is a direct current signal, otherwise this drive singal is a pwm signal; And
A motor, is electrically connected this driver element, and is driven by this drive singal, and drives a flabellum to rotate.
9. fan as claimed in claim 8, is characterized in that, when this reference voltage is lower than a stopping threshold value, this driver element exports the low level of this pwm signal.
10. fan as claimed in claim 8, it is characterized in that, this voltage-controlled loop is connected in series by two resistors to form a dividing point, and this driver element has a reference edge and two drive ends, this reference edge is electrically connected this dividing point, and this drive end is electrically connected this motor.
11. fans as claimed in claim 8, it is characterized in that, this fan is the DC fan with autoboot function.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101144309A TWI521163B (en) | 2012-11-27 | 2012-11-27 | A lighting apparatus with light adjusting and cooling functions and a fan of the lighting apparatus |
| TW101144309 | 2012-11-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103836407A CN103836407A (en) | 2014-06-04 |
| CN103836407B true CN103836407B (en) | 2015-12-23 |
Family
ID=50800174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210525893.2A Expired - Fee Related CN103836407B (en) | 2012-11-27 | 2012-12-10 | Lighting device with dimming and heat dissipation functions and fan thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103836407B (en) |
| TW (1) | TWI521163B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896322A (en) * | 2014-12-21 | 2015-09-09 | 王炳煜 | Multi-purpose integrated high-performance endoscopic light source |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854475U (en) * | 2010-09-16 | 2011-06-01 | 苏州达方电子有限公司 | Light-emitting diode driving device |
| TW201246775A (en) * | 2011-05-13 | 2012-11-16 | Inno Tech Co Ltd | Power converting module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8130522B2 (en) * | 2007-06-15 | 2012-03-06 | The Regents Of The University Of Colorado, A Body Corporate | Digital power factor correction |
| US20100259185A1 (en) * | 2009-04-11 | 2010-10-14 | Innosys, Inc. | Thyristor Starting Circuit |
-
2012
- 2012-11-27 TW TW101144309A patent/TWI521163B/en not_active IP Right Cessation
- 2012-12-10 CN CN201210525893.2A patent/CN103836407B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854475U (en) * | 2010-09-16 | 2011-06-01 | 苏州达方电子有限公司 | Light-emitting diode driving device |
| TW201246775A (en) * | 2011-05-13 | 2012-11-16 | Inno Tech Co Ltd | Power converting module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103836407A (en) | 2014-06-04 |
| TW201420940A (en) | 2014-06-01 |
| TWI521163B (en) | 2016-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105025615B (en) | The LED drive system and use its light-dimming method that controlling switch dims | |
| CN102892238B (en) | Dimming drive circuit of AC (Alternating Current) direct drive LED module | |
| CN202603017U (en) | PWM dimming LED drive circuit | |
| CN103139992A (en) | Light-emitting diode (LED) dimming driving system with silicon controlled bypass dimming circuit | |
| CN103582231A (en) | Light emitting diode driving device | |
| CN101626652A (en) | Dimmable LED constant current source driver with wide voltage range | |
| CN103874310A (en) | Method for improving LED visual illuminating effect and lowering heating of LED lamp | |
| CN203814012U (en) | Driving circuit capable of improving LED visual lighting effect | |
| CN102685989A (en) | PWM (Pulse-Width modulation) dimming method and circuit of LED constant-current source concentratively powered by high-voltage direct current | |
| CN102917518B (en) | Realize the method for LED lamp bar current multiplication and the drive circuit of correspondence thereof | |
| CN101990347A (en) | Driving and dimming method suitable for alternating current LEDs | |
| CN104349541A (en) | Over-temperature protection device and over-temperature protection method thereof | |
| CN201733479U (en) | Circuit for carrying out pulse control on constant current diode to conduct and drive LED to emit light | |
| CN104780694A (en) | LED touch dimming constant current drive power source | |
| CN104938030B (en) | The method and its regulation device of operational control are carried out to load using the alternating current voltage angle of flow is changed as control command | |
| CN201054826Y (en) | LED lamp driving circuit | |
| CN103836407B (en) | Lighting device with dimming and heat dissipation functions and fan thereof | |
| CN204119604U (en) | The Multi-channel high-frequency impulse circuit of LED lamp | |
| CN201854475U (en) | Light-emitting diode driving device | |
| CN107995751A (en) | A kind of LED drive circuit | |
| CN210351737U (en) | LED street lamp drive circuit | |
| CN201935000U (en) | Dimming-scalable light-emitting diode (LED) bulb lamp | |
| CN103052222A (en) | 220V light-dimmable constant-current drive high-voltage LED (Light Emitting Diode) circuit | |
| CN201869407U (en) | LED intelligent control circuit | |
| CN101990331A (en) | LED-based TRIAC dimming method |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20171210 |