CN202551404U - Lighting device - Google Patents
Lighting device Download PDFInfo
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- CN202551404U CN202551404U CN2011203952037U CN201120395203U CN202551404U CN 202551404 U CN202551404 U CN 202551404U CN 2011203952037 U CN2011203952037 U CN 2011203952037U CN 201120395203 U CN201120395203 U CN 201120395203U CN 202551404 U CN202551404 U CN 202551404U
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Abstract
The utility model provides a lighting device, including emitting diode unit, power supply circuit and converter. The power circuit is provided with a power end, a battery and a driving circuit, and is electrically connected with the light-emitting diode unit. The converter is electrically connected with the power circuit and the light emitting diode unit. The driving circuit detects the state of the power supply end, enables the power supply end to input power and provide the power to the light-emitting diode unit when the power supply end is in the normal power supply state, and enables the battery to provide the power to the light-emitting diode unit through the converter and simultaneously reduces the output power of the light-emitting diode unit when the power supply end is in the power-off state. Therefore, the utility model discloses can provide stand-by power supply so that lighting device continues to give out light when outage or power failure, save power consumption simultaneously and remind the user to pay attention to.
Description
Technical field
The utility model is about a kind of lighting device, especially about the lighting device of a kind of power supply adaptive (power-adaptive).
Background technology
Light-emitting diode (Light Emitting Diode; LED) be widely used in recent years in the middle of the daily life, because of it has the benefit and the advantage of energy saving, display, electric household appliance, auto electronic assembly, lighting such as ... Deng being the application category of light-emitting diode all.To use light-emitting diode to be example as the home lighting light fixture of light emitting source; Because of its have the warm lamp time fast, reaction speed is fast, volume is little, the life-span is long, power saving, shatter-proof, pollution level is low, the advantage of high-reliability and suitable volume production, makes conventional incandescent bulb and fluorescent lamp have substituted gradually trend.
Only, existing LED light fixture is to adopt distribution to hide to be fixed on wall inside, and therefore, when meeting accident the outage of power failure or unknown cause, light fixture will lose illuminating effect immediately.At this moment, the user must feel about in the dark and seek flashlight, candle etc., so that find new outlets or keep work, thereby causes many constant.
For solving above-mentioned disappearance, in the novel patent patent No. of TaiWan, China M389825, disclose a kind of LED lamp, as shown in Figure 1.This LED lamp 1 is when normal power supply; The electric power of civil power is imported from power input end 10, and after the conversion of charger 11, electric power is stored in the storage battery 12; When the power failure situation takes place; As long as starting switch 13, the supply of electric power LED lamp 1 with regard in the storage battery 12 capable of using lets LED lamp 1 continue to keep illuminating effect.Though above-mentioned existing LED lamp can switch to by storage battery power supply when the power failure situation takes place and give the LED lamp, need mode via MTS, concerning being in the user in dark, still can bring inconvenience.
Moreover, because the stored electric power of storage battery can exhaust, thus must point out the user to carry out repair process or prepare other light source, therefore needs a kind of can be when power failure the automatic switchover electric power source, and point out the LED light fixture of present power supply state.
The utility model content
The technical problem that the utility model mainly solves is; Above-mentioned deficiency to prior art exists provides a kind of LED lighting device, and it has detecting power end status function; And can switch electric power source in response to this state, reduce power output simultaneously and produce the light source of flicker.
One of technical problem that the utility model will solve is that the above-mentioned deficiency to prior art exists provides a kind of lighting device; It has the circuit of detecting power end state; Battery in using lighting device reduces the power output of lighting device during as electric power source, uses the consumption of saving electric power; With when the civil power outage is of a specified duration, the lighting hours that prolongs lighting device.
Another technical problem that the utility model will solve is; Above-mentioned deficiency to the prior art existence; A kind of lighting device is provided, and it has the circuit of detecting power end state, and the battery in using lighting device is during as electric power source; Make lighting device produce the illumination of flicker, note to remind the user.
The utility model solves the technical scheme that its technical problem adopted and provides a kind of lighting device; It comprises light emitting diode, has the power circuit and the transducer of power end and battery; Wherein, This power circuit is electrically connected this light emitting diode, and in order to supply with this light emitting diode electric power and to this battery charge; Wherein, This power circuit also comprises drive circuit; This drive circuit is electrically connected on this power end, this light emitting diode and this battery; And this drive circuit makes this power end supply capability give this light emitting diode when this power end is in first state, and when this power end is in second state, makes this battery supply capability give this light emitting diode; This transducer is electrically connected on this power circuit, this battery and this light emitting diode; When this transducer gives this light emitting diode in this battery supply capability; Reduce the power output of this light emitting diode, and make this light emitting diode produce an intermittent flasher.
Preferably, this power circuit also comprises diverter switch, and this diverter switch is coupled to this power end, and when this diverter switch was opened, this power circuit was imported electric power and provided from this power end and gives this light emitting diode use.
Preferably, this power circuit also comprises charging circuit, and this charging circuit is electrically connected on this power end, and this charging circuit is imported electric power so that this battery is charged from this power end.
Preferably, this first state is the normal power supply state, and this second state is an off-position.
Preferably, this drive circuit comprises microprocessing unit, and this microprocessing unit makes this battery provide electric power to give this microprocessing unit and this light emitting diode detecting this power end when being in this off-position; And this microprocessing unit is detecting this power end when being in this normal power supply state, certainly this power end input electric power and provide and give this microprocessing unit and this light emitting diode.
Preferably, this microprocessing unit comprises the microcontroller of programmable.
Preferably, this microprocessing unit comprises in order to the electric capacity of this microprocessing unit required electric power in a time length to be provided.
Preferably; This drive circuit also comprises pulse width modulation control unit and control circuit, and wherein, this pulse width modulation control unit is electrically connected this power end; This pulse width modulation control unit adjustment is from the work period of the electric power of this power end input, to produce an electric power signal; This control circuit is electrically connected this light emitting diode and this pulse width modulation control unit, and this control circuit receives this electric power signal, and drives this light emitting diode, makes this light emitting diode produce corresponding brightness.
Preferably, this transducer is that power output with this light emitting diode is reduced between 1/2 power output to 1/3 power output.
Preferably, this lighting device is applied to room lighting, and this lighting device can be household illuminating lamp, commercial illuminating lamp, desk lamp or bedside lamp.
The utility model also provides a kind of lighting device; It comprises light emitting diode, has the power circuit and the transducer of power end and battery; Wherein, this power circuit is electrically connected this light emitting diode, and in order to supply with this light emitting diode electric power and to this battery charge; Wherein, This power circuit also comprises drive circuit; This drive circuit is electrically connected on this power end, this light emitting diode and this battery; And this drive circuit makes this power end supply capability give this light emitting diode when this power end is in first state, and when this power end is in second state, makes this battery supply capability give this light emitting diode; This transducer is electrically connected on this power circuit, this battery and this light emitting diode, when this transducer gives this light emitting diode in this battery supply capability, reduces the power output of this light emitting diode.
Preferably, this power circuit also comprises diverter switch, and this diverter switch is coupled to this power end, and when this diverter switch was opened, this power circuit was imported electric power and provided from this power end and gives this light emitting diode use.
Preferably, this power circuit also comprises charging circuit, and this charging circuit is electrically connected on this power end, and this charging circuit is from this power end input electric power and in order to this battery is charged.
Preferably, this first state is the normal power supply state, and this second state is an off-position.
Preferably, this drive circuit comprises microprocessing unit, when this microprocessing unit detects this power end when being in this off-position, makes this battery provide electric power to give this microprocessing unit and this light emitting diode; And when this this power end of microprocessing unit detecting was in this normal power supply state, this power end was imported electric power and is provided and gives this microprocessing unit and this light emitting diode certainly.
Preferably, this microprocessing unit comprises the microcontroller of programmable.
Preferably, this microprocessing unit comprises in order to the electric capacity of this microprocessing unit required electric power in a time length to be provided.
Preferably; This drive circuit also comprises pulse width modulation control unit and control circuit, and wherein, this pulse width modulation control unit is electrically connected this power end; This pulse width modulation control unit is in order to the work period of adjustment from the electric power of this power end input, to produce an electric power signal; This control circuit is electrically connected this light emitting diode and this pulse width modulation control unit, and this control circuit receives this electric power signal, and drives this light emitting diode, makes this light emitting diode produce corresponding brightness.
Preferably, this transducer is that power output with this light emitting diode is reduced between 1/2 power output to 1/3 power output.
Preferably, this lighting device is applied to room lighting, and this lighting device can be household illuminating lamp, commercial illuminating lamp, desk lamp or bedside lamp.
The utility model also provides a kind of lighting device; Give a light emitting diode in order to supply capability; This lighting device comprises power circuit and the transducer with power end and battery; Wherein, this power circuit is electrically connected this light emitting diode and to this battery charge, wherein this power circuit also comprises the drive circuit that is electrically connected on this power end, this light emitting diode and this battery; And this drive circuit makes this power end supply capability give this light emitting diode when this power end is in first state, and when this power end is in second state, makes this battery supply capability give this light emitting diode; This transducer is electrically connected on this power circuit, this battery and this light emitting diode, when this transducer gives this light emitting diode in this battery supply capability, reduces the power output of this light emitting diode.
Preferably, this power circuit also comprises diverter switch, and this diverter switch is coupled to this power end, and when this diverter switch was opened, this power circuit was imported electric power and provided from this power end and gives this light emitting diode use.
Preferably, this power circuit also comprises charging circuit, and this charging circuit is electrically connected on this power end, and this charging circuit is imported electric power so that this battery is charged from this power end.
Preferably, this first state is the normal power supply state, and this second state is an off-position.
Preferably, this drive circuit comprises microprocessing unit, and this microprocessing unit makes this battery provide electric power to give this microprocessing unit and this light emitting diode detecting this power end when being in this off-position; And this microprocessing unit is detecting this power end when being in this normal power supply state, certainly this power end input electric power and provide and give this microprocessing unit and this light emitting diode.
Preferably, this microprocessing unit comprises the microcontroller of programmable.
Preferably, this microprocessing unit comprises in order to the electric capacity of this microprocessing unit required electric power in a time length to be provided.
Preferably; This drive circuit also comprises pulse width modulation control unit and control circuit, and wherein, this pulse width modulation control unit is electrically connected this power end; This pulse width modulation control unit adjustment is from the work period of the electric power of this power end input, to produce an electric power signal; This control circuit is electrically connected this light emitting diode and this pulse width modulation control unit, and this control circuit receives this electric power signal, and drives this light emitting diode, makes this light emitting diode produce corresponding brightness.
Preferably, this transducer is that power output with this light emitting diode is reduced between 1/2 power output to 1/3 power output.
Preferably, this lighting device comprises and is applied to the light fixture that room lighting is used, and promptly can be the light fixture that comprises household illuminating lamp, commercial illuminating lamp, desk lamp or bedside lamp.
The utility model lighting device has detecting power end status function; And can switch electric power source in response to this state; Stand-by power supply is provided so that lighting device continues luminous in the time of can or having a power failure in outage; Reduce power output simultaneously and produce the light source of flicker, the user can clearly be experienced be in the situation of cutting off the power supply or having a power failure.Particularly, the utility model is through having the circuit of detecting power end state, and the battery in using lighting device is during as electric power source; The power output of lighting device is reduced; Use the consumption of saving electric power, with when the civil power outage is of a specified duration, the lighting hours that prolongs lighting device; And the utility model lighting device also can during as electric power source, make lighting device produce the illumination of flicker in the battery in using lighting device, notes to remind the user.
Description of drawings
Fig. 1: be the device sketch map of existing LED lamp.
Fig. 2: be the block schematic diagram of first preferred embodiment of the utility model lighting device.
Fig. 3: be the block schematic diagram of second preferred embodiment of the utility model lighting device.
Fig. 4: be the circuit diagram of first preferred embodiment of lighting device shown in Figure 2.
Fig. 5: be the operation chart of first preferred embodiment of the utility model lighting device.
Fig. 6: be the operation chart of the 3rd preferred embodiment of the utility model lighting device.
Fig. 7: be the block schematic diagram of the 4th preferred embodiment of the utility model lighting device.
Embodiment
The various enforcement aspects of the lighting device of the utility model below will be described; Be noted that; Below the lighting device of the utility model mainly is described with power circuit, transducer and luminescence unit three parts; So the lighting device of the utility model, can power circuit, transducer and luminescence unit be integrated and adhere to or form a member; But be only power circuit, transducer to be integrated and adhere to or form a member, luminescence unit then is independent parts; But be that power circuit, transducer, luminescence unit are independent parts, can make up, dismantle, adhere to or form a member each other; But be transducer, luminescence unit are integrated and to adhere to or form a member, power circuit then is independent parts.
See also Fig. 2, it is the block schematic diagram of the utility model lighting device one first preferred embodiment, and Fig. 4 then is the circuit diagram of first preferred embodiment of lighting device shown in Figure 2.Lighting device 2 comprises a light emitting diode 21, a power circuit 22 and a transducer 23, and wherein this power circuit 22 comprises a power end 221, battery 222, one drive circuit 223 and a charging circuit 224.
When this power end 221 was in normal power supply state (first state), the electric power that this drive circuit 223 provides power end 221 directly transmitted and gives this light emitting diode 21, makes this light emitting diode 21 luminous.At this moment, this charging circuit 224 is imported electric power so that this battery 222 is charged by this power end 221.
When this power end 221 was in disconnected (stopping) electricity condition (second state), 223 electric power with this battery 222 of this drive circuit were exported and by this transducer 23 power delivery are given this light emitting diode 21, make this light emitting diode 21 luminous.Wherein, this transducer 23 is electrically connected on this battery 222 and this light emitting diode 21, and when electric power source during from this battery 222, transducer 23 adjustment input to the electric power of this light emitting diode 21, and then reduce the power output of this light emitting diode 21.
In addition; See also Fig. 3; For the block schematic diagram of the utility model lighting device one second preferred embodiment, as shown in the figure, lighting device 2 ' includes a power circuit 22 ' and a light emitting diode 21 '; This power circuit 22 ' is electrically connected this light emitting diode 21 ', in order to supply with this light emitting diode 21 ' electric power.This power circuit 22 ' includes a power end 221 ', battery 222 ', one drive circuit 223 ', a charging circuit 224 ' and a transducer 23 '; Be with the above-mentioned first preferred embodiment difference; This transducer 23 ' is to be integrated in the power circuit 22 ' to become the part of this power circuit 22 '; With when electric power source during from battery 222 ', adjustment inputs to the electric power of this light emitting diode 21 ', and then reduces the luminous power output of this light emitting diode 21 '.
See also Fig. 4, next describe the circuit design sketch map of lighting device in first preferred embodiment of the utility model in detail.In this embodiment, this lighting device 2 is made up of this light emitting diode 21, this power circuit 22 and 23 of this transducers.This light emitting diode 21 is in order to the light source as lighting device 2, and this power circuit 22 drives and control the electric power of this light emitting diode 21 of input.And this transducer 23 is used to when this battery 222 supply capabilities, and adjustment inputs to the electric power of this light emitting diode 21, and then reduces the luminous power output of this light emitting diode 21.This power circuit 22 comprises this power end 221, this battery 222, this drive circuit 223 and this charging circuit 224; Wherein, this power end 221 is meant the feeder ear of general civil power in this embodiment, but not as limit, the device of other exportable alternating current also can be with its alternating current output as the power end in the utility model 221.
In this embodiment; This power circuit 22 comprises that more one switches switch 225; Be coupled to this power end 221, when this diverter switch 225 was in unlatching (path) state, this drive circuit 223 was from these power end 221 input electric power and provide electric power to give this light emitting diode 21.
Again; This charging circuit 224 is electrically connected on this power end 221, in order to this power end 221 input electric power certainly and in order to this battery 222 is charged, wherein; This charging circuit 224 comprises one first bridge rectifier 2241, converts direct current in order to the alternating current that will import from power end 221.
In this embodiment, this drive circuit 223 comprises one second bridge rectifier 2231, a microprocessing unit 2232, a pulse width modulation control unit 2233, a control circuit 2234 and a voltage transformation unit 2235.This second bridge rectifier 2231 will be in order to converting direct current to from the alternating current of these power end 221 inputs.This pulse width modulation control unit 2233 is electrically connected on this power end 221 through this second bridge rectifier 2231; In order to the work period (duty ratio) of adjustment from the electric power of these power end 221 inputs; To continue to produce an electric power signal 2211; Wherein, the work period (duty ratio) of the electric power of adjustment input mainly influences the brightness that this light emitting diode 21 produces.
In this embodiment; This control circuit 2234 is electrically connected this light emitting diode 21; And be electrically connected on this pulse width modulation control unit 2233 with this voltage transformation unit 2235 via this microprocessing unit 2232; This control circuit 2234 receives this electric power signal 2211 and gives this light emitting diode 21 so that electric power to be provided, and then makes this light emitting diode 21 luminous, and produces the brightness corresponding to the work period of this electric power; Wherein, the collocation of above-mentioned this pulse width modulation control unit 2233 and this control circuit 2234 and voltage transformation unit 2235 can the existing techniques in realizing basic functions, so do not add to give unnecessary details at this.
Secondly, this microprocessing unit 2232 is electrically connected this voltage transformation unit 2235; In this embodiment, this microprocessing unit 2232 comprises a microcontroller 22321, a first transistor 22322 and a transistor seconds 22323 of programmable.This microcontroller 22321 comprises that one triggers pin position Pin, one first output pin position Pout1 and one second output pin position Pout2; Wherein, this first output pin position Pout1 is electrically connected to this first transistor 22322, and this second output pin position Pout2 is electrically connected to this transistor seconds 22323.
Furthermore, this first transistor 22322 is electrically connected this battery 222 and this microprocessing unit 2232, and this transistor seconds 22323 is electrically connected this light emitting diode 21 and this transducer 23.
Below specify the operational scenario of the utility model lighting device 2 when practical operation, please arrange in pairs or groups and consult Fig. 5, it is the operation chart of first preferred embodiment of the utility model lighting device; Wherein, the longitudinal axis is the percentage of the power output of this light emitting diode 21, and transverse axis is the time.When the user opens this diverter switch 225 (path); Time point T0 like Fig. 5; Electric power (for example, civil power) just from these power end 221 inputs and after second bridge rectifier 2231 converts direct current into, inputs to this pulse width modulation control unit 2233; The work period (duty ratio) of these pulse width modulation control unit 2233 these direct current powers of adjustment is to continue to produce electric power signal 2211.Then; This control circuit 2234 receives through voltage transformation unit 2235 this electric power signal 2211 with microprocessing unit 2232; And drive this light emitting diode 21; In this simultaneously, the electric power signal of these power end 221 inputs of the triggering pin position Pin of this microcontroller 22321 detecting be " H " (high) close signal 22324 to this first transistor 22322 and this transistor seconds 22323 so that this first output pin position Pout1 and this second output pin position Pout2 are all exported; Wherein, this is closed signal 22324 and makes this first transistor 22322 and the 22323 neither conductings of this transistor seconds.At this moment, this microcontroller 22321 is all provided by civil power with the electric power of this light emitting diode 21.
In addition, electric power is to input to this charging circuit 224 from this power end 221, and elder generation charges to this battery 222 behind these first bridge rectifier, 2241 conversion direct currents.What need special instruction is; The circuit design of this charging circuit 224; Do not couple this diverter switch 225, therefore, when power end 221 is in the normal power supply state; No matter this diverter switch 225 is opened or closed, this charging circuit 224 all continues from these power end 221 input electric power this battery 222 to be charged.
When outage takes place or the situation that has a power failure, that is, when this power end 221 can't output power, promptly like the time point T1 of Fig. 5; At first; This of this microcontroller 22321 trigger pin position Pin detecting from the electric power signal of these power end 221 inputs be " L " (LOW); Just make this first output pin position Pout1 and this second output pin position Pout2 all export conducting signal 22325 to this first transistor 22322 and this transistor seconds 22323; This conducting signal 22325 makes this first transistor 22322 and all conductings of this transistor seconds 22323; At this moment, keeping operate as normal, and this light emitting diode 21 is from these battery 222 input electric power from this battery 222 input electric power for this microprocessing unit 2232; This electric power after 23 conversions of this transducer, make the power output of this light emitting diode 21 be reduced to power output originally 1/2 to 1/3 between (Fig. 5 be example to be reduced to 1/2 power output).
The purpose that reduces power is to make the user can obviously experience outage or the situation that has a power failure, and the prompting user carries out repair process or prepares other stand-by power supply or light source.
Furthermore; Reducing the power output of this light emitting diode 21 is more decided by the situation of actual environment; For instance, the power output of required light emitting diode 21 is neither identical in different time or different place, and above-mentioned being reduced between 1/2 power output to 1/3 power output is to be a preferred embodiment; Not as limit, as long as can make the user obviously experience the difference and the tool prompting effect of power output.
The above-mentioned explanation that continues, when having a power failure or the state release of outage, that is power recovery is from these power end 221 inputs, like the time point T2 of Fig. 5.The electric power signal of these power end 221 inputs of triggering pin position Pin detecting of this microcontroller 22321 is " H "; Just make this first output pin position Pout1 and this second output pin position Pout2 all export this and close signal 22324 to this first transistor 22322 and this transistor seconds 22323, this is closed signal 22324 and makes this first transistor 22322 and the 22323 neither conductings of this transistor seconds.At this moment, this microcontroller 22321 is imported from this power end 221 with the power recovery of this light emitting diode 21, and this light emitting diode 21 also returns to power output originally.
Below remark additionally; This pulse width modulation control unit 2233 these electric power signals 2211 of output, making to be received and driven this light emitting diode 13 by a control element 22341, a capacitor C 5, a plurality of resistance R 4, control circuit 2234 that R5, R6 formed provides corresponding luminosity; Wherein, Control element 22341 can be in order to constant voltage (Constant Voltage) or constant current (Constant Current) or have the controller of constant voltage and constant current concurrently; The utility model sees through this control element 22341, resistance R 4, R5, R6 and two optical coupling elements 22342,22331; The electric power that can make this drive circuit 223 export this light emitting diode 21 to is realized the effect of constant voltage and constant current, that is avoids the electric power generation overvoltage that exports this light emitting diode 21 to of this drive circuit and the situation of overcurrent.
Moreover; This microprocessing unit 2232 more comprises a capacitor C 7, when being used to this power end 221 and stopping to import electric power and give this microprocessing unit 2232, provides the electric power of a time length to give this microcontroller 22321; Make its ability operate as normal, and the length of this time span depends on the specification of capacitor C 7.In addition, the lighting device 2 of the utility model is applied to room lighting, and it can be household illuminating lamp, commercial illuminating lamp, desk lamp or bedside lamp etc., but not as limit.
The utility model more provides another preferred embodiment, sees also Fig. 2 and Fig. 6, and Fig. 6 is the operation chart of the 3rd preferred embodiment of the utility model lighting device.In present embodiment; The design of circuit is identical with above-mentioned first embodiment; Difference at this transducer 23 in when these battery 221 supply capabilities are given this light emitting diode 21; Not only reduce the power output of this light emitting diode 21, and make this light emitting diode 21 generations one intermittent flicker luminous simultaneously, shown in time interval T1～T2 among Fig. 6; Desire to reach the circuit design that the intermittent flasher of generation only need change transducer 23, after design, also can change the frequency of these light emitting diode 21 flickers.Thus; See through the generation of this intermittence flasher; The user can more know the outage or the situation of power failure of being in of experiencing; And can prolong between operating period of this battery 221 and the lighting hours of this light emitting diode 21, the user can be had ample time dispose or repair electric power.
The utility model more provides one the 4th preferred embodiment, sees also Fig. 7, and it is the sketch map of the utility model the 4th preferred embodiment.In present embodiment; Lighting device 3 is meant the part of power circuit 32, and this power circuit 32 can load light emitting diode 31, and supply capability is given this light emitting diode 31 and make this light emitting diode 31 luminous; That is; This power circuit 32 is separable two parts with this light emitting diode 31, and the user can replace this light emitting diode 31 separately when this light emitting diode 31 damages, and needn't change the part of this power circuit 32.
In present embodiment; The circuit design of this power circuit 32 is identical with above-mentioned second preferred embodiment; This power circuit 32 includes a power end 321, battery 322, one drive circuit 323, a charging circuit 324 and a transducer 33; The state of these drive circuit 323 these power ends 321 of detecting, and when this power end 321 is in this normal power supply state, makes these power end 321 input electric power and provide and give this light emitting diode 31; And when this power end 321 was in off-position, this drive circuit 323 made this battery 322 provide electric power to give this light emitting diode 31 through this transducer 33.
Moreover; This transducer 33 is integrated in a part that becomes power circuit 32 in this power circuit 32; When electric power source was from battery 322 to take place when outage, adjustment inputed to the electric power of this light emitting diode 31, and then reduces the luminous power output of this light emitting diode 31.
Comprehensive the above, the lighting device of the utility model provide a stand-by power supply in the time of can or having a power failure in outage so that lighting device continues luminously, and reduces power output simultaneously, the situation that the user can clearly be experienced be in outage or have a power failure; So the utility model is one to have the work of industrial value in fact.
The above is merely the preferred embodiment of the utility model; Be not in order to limit the claim scope of the utility model; Therefore all other do not break away from the equivalence of being accomplished under the spirit that the utility model discloses and changes or modify, and all should be contained in the scope of the utility model.
Claims (17)
1. a lighting device is characterized in that, comprising:
Light emitting diode;
Power circuit with power end and battery is electrically connected this light emitting diode, and supplies with this light emitting diode electric power and to this battery charge; Wherein, This power circuit also comprises drive circuit; This drive circuit is electrically connected on this power end, this light emitting diode and this battery; And this drive circuit makes this power end supply capability give this light emitting diode when this power end is in first state, and when this power end is in second state, makes this battery supply capability give this light emitting diode; And
Transducer is electrically connected on this power circuit, this battery and this light emitting diode, when this transducer gives this light emitting diode in this battery supply capability, reduces the power output of this light emitting diode.
2. lighting device as claimed in claim 1 is characterized in that, when this transducer gives this light emitting diode in this battery supply capability, reduces the power output of this light emitting diode, and makes this light emitting diode produce an intermittent flasher.
3. lighting device as claimed in claim 1; It is characterized in that this power circuit also comprises diverter switch, this diverter switch is coupled to this power end; When this diverter switch was opened, this power circuit was imported electric power and is provided from this power end and gives this light emitting diode; Or be, this power circuit also comprises charging circuit, and this charging circuit is electrically connected on this power end, and this charging circuit is imported electric power so that this battery is charged from this power end.
4. lighting device as claimed in claim 1 is characterized in that, this first state is the normal power supply state, and this second state is an off-position.
5. lighting device as claimed in claim 4 is characterized in that this drive circuit comprises microprocessing unit, and this microprocessing unit makes this battery provide electric power to give this microprocessing unit and this light emitting diode detecting this power end when being in this off-position; And this microprocessing unit is detecting this power end when being in this normal power supply state, certainly this power end input electric power and provide and give this microprocessing unit and this light emitting diode.
6. lighting device as claimed in claim 5 is characterized in that this microprocessing unit comprises the microcontroller of programmable; Or be that this microprocessing unit comprises in order to the electric capacity of this microprocessing unit required electric power in a time length to be provided.
7. lighting device as claimed in claim 5 is characterized in that, this drive circuit also comprises:
The pulse width modulation control unit is electrically connected this power end, and this pulse width modulation control unit adjustment is from the work period of the electric power of this power end input, to produce an electric power signal; And
Control circuit is electrically connected this light emitting diode and this pulse width modulation control unit, and this control circuit receives this electric power signal, and drives this light emitting diode, makes this light emitting diode produce corresponding brightness.
8. lighting device as claimed in claim 1 is characterized in that, this transducer is that the power output with this light emitting diode is reduced between 1/2 power output to 1/3 power output.
9. lighting device as claimed in claim 1 is characterized in that, this lighting device is household illuminating lamp or commercial illuminating lamp.
10. lighting device as claimed in claim 1 is characterized in that, this lighting device is a desk lamp.
11. lighting device as claimed in claim 1 is characterized in that, this lighting device is a bedside lamp.
12. a lighting device is given a light emitting diode in order to supply capability, it is characterized in that this lighting device comprises:
Power circuit with power end and battery; Be electrically connected this light emitting diode and to this battery charge; Wherein this power circuit also comprises the drive circuit that is electrically connected on this power end, this light emitting diode and this battery; And this drive circuit makes this power end supply capability give this light emitting diode when this power end is in first state, and when this power end is in second state, makes this battery supply capability give this light emitting diode; And
Transducer is electrically connected on this power circuit, this battery and this light emitting diode, when this transducer gives this light emitting diode in this battery supply capability, reduces the power output of this light emitting diode.
13. lighting device as claimed in claim 12; It is characterized in that this power circuit also comprises diverter switch, this diverter switch is coupled to this power end; When this diverter switch was opened, this power circuit was imported electric power and is provided from this power end and gives this light emitting diode; Or be, this power circuit also comprises charging circuit, and this charging circuit is electrically connected on this power end, and this charging circuit is imported electric power so that this battery is charged from this power end.
14. lighting device as claimed in claim 12 is characterized in that, this first state is the normal power supply state, and this second state is an off-position.
15. lighting device as claimed in claim 14; It is characterized in that; This drive circuit comprises microprocessing unit, and this microprocessing unit makes this battery provide electric power to give this microprocessing unit and this light emitting diode detecting this power end when being in this off-position; And this microprocessing unit is detecting this power end when being in this normal power supply state, certainly this power end input electric power and provide and give this microprocessing unit and this light emitting diode.
16. lighting device as claimed in claim 15 is characterized in that, this microprocessing unit comprises the microcontroller of programmable; Or be that this microprocessing unit comprises in order to the electric capacity of this microprocessing unit required electric power in a time length to be provided.
17. lighting device as claimed in claim 15 is characterized in that, this drive circuit also comprises:
The pulse width modulation control unit is electrically connected this power end, and this pulse width modulation control unit adjustment is from the work period of the electric power of this power end input, to produce an electric power signal; And
Control circuit is electrically connected this light emitting diode and this pulse width modulation control unit, and this control circuit receives this electric power signal, and drives this light emitting diode, makes this light emitting diode produce corresponding brightness.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100202615U TWM407344U (en) | 2011-02-11 | 2011-02-11 | Lighting device |
| TW100202615 | 2011-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202551404U true CN202551404U (en) | 2012-11-21 |
Family
ID=45081121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203952037U Expired - Fee Related CN202551404U (en) | 2011-02-11 | 2011-10-17 | Lighting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202551404U (en) |
| TW (1) | TWM407344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889103A (en) * | 2013-02-05 | 2014-06-25 | 洛阳频瑞电子有限公司 | Unit continuous lighting system |
| CN109152125A (en) * | 2017-06-28 | 2019-01-04 | 群光电能科技股份有限公司 | Light emitting device and its driving method |
-
2011
- 2011-02-11 TW TW100202615U patent/TWM407344U/en not_active IP Right Cessation
- 2011-10-17 CN CN2011203952037U patent/CN202551404U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889103A (en) * | 2013-02-05 | 2014-06-25 | 洛阳频瑞电子有限公司 | Unit continuous lighting system |
| CN109152125A (en) * | 2017-06-28 | 2019-01-04 | 群光电能科技股份有限公司 | Light emitting device and its driving method |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM407344U (en) | 2011-07-11 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20161017 |