CN1767711B - Discharge lamp ligniting device and light fixture - Google Patents
Discharge lamp ligniting device and light fixture Download PDFInfo
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- CN1767711B CN1767711B CN 200510116629 CN200510116629A CN1767711B CN 1767711 B CN1767711 B CN 1767711B CN 200510116629 CN200510116629 CN 200510116629 CN 200510116629 A CN200510116629 A CN 200510116629A CN 1767711 B CN1767711 B CN 1767711B
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Abstract
The invention provides a discharge lamp lighting device allowing a cumulative operation time of a high-frequency lighting device to be obtained and capable of correcting illuminance; and to provide a luminaire. This discharge lamp lighting device is provided with: the high-frequency lighting device for energizing a discharge lamp; a timer means for cumulatively counting the operation time of the high-frequency lighting device; a nonvolatile storage means for storing the cumulative operation time of the high-frequency lighting device cumulatively counted by the timer means; a dimming signal generation means for generating a dimming signal based on the cumulative operation time and the cumulative operation time in the latest lamp replacement; and a control means for controlling the high-frequency lighting device according to the dimming signal.
Description
Technical field
The invention relates to a kind of discharge lamp ignition device and ligthing paraphernalia with light modulation function.
Background technology
For to discharge lamp because of low through the output of light that its annual change caused and export because of the dirty light that causes of following long-time use and lowly to revise, known have a kind of accumulation that begins the instrumentation discharge lamp after the replacing of discharge lamp to light a lamp the time, and the lighting device that chien shih light modulation level increases when lighting a lamp according to this accumulation.And, when changing discharge lamp, resetted the accumulation time of lighting a lamp at every turn.Here, propose to have a kind of end of lifetime to detect and automatically reset the lighting device of time of maybe accumulation being lit a lamp the accumulation time of lighting a lamp with hand-reset to discharge lamp.(for example with reference to patent documentation 1)
The spy of [patent documentation 1] Japanese Patent Laid Open Publication opens 2001-15276 communique (the 8th page, the 14th figure)
The lighting device of patent documentation 1 is when the end of lifetime of each detection discharge lamp, or when carrying out the replacing of discharge lamp at every turn, the accumulation of only carrying out discharge lamp respectively the resetting of time of lighting a lamp, so in life-span that can't instrumentation use for discharge lamp ignition device (paraphase device), exceed its life-span sometimes and use.As a result, can have problems at the use for discharge lamp ignition device sometimes, make discharge lamp can't bring into play the electrical characteristic of setting.And, the life-span that can't hold actual use for discharge lamp ignition device.
Summary of the invention
The purpose of this invention is to provide a kind of accumulative total operate time of obtaining the high-frequency lighting device, and the discharge lamp ignition device and the ligthing paraphernalia that can carry out the illumination correction.
The 1st described discharge lamp ignition device of the present invention is characterised in that, comprising: pay high-frequency lighting device with energy to discharge lamp; The time set that adds up timing operate time to the high-frequency lighting device; With the nonvolatile storage device that utilizes time set to be stored operate time by the accumulative total of the high-frequency lighting device of accumulative total timing; Accumulative total operate time when changing, generate the dim signal generating apparatus of dim signal according to aforementioned accumulative total operate time and up-to-date lamp; And the control device of the high-frequency lighting device being controlled according to aforementioned dim signal.
In the present invention and following each invention, unless otherwise specified, shown in respectively being constructed as follows.Also can be lighting a lamp the time of discharge lamp the operate time of high-frequency lighting device.This is because the time that the high-frequency lighting device moves, can think the time that discharge lamp is lit a lamp in fact.For example, when the switch opens of discharge lamp ignition device, the timing circuit that filament preheating time, discharge time and the time of lighting a lamp are managed moves, and makes the high-frequency lighting device action.
In above-mentioned filament preheating time, owing to discharge lamp is not lit a lamp, so also inequality in the time strictness of lighting a lamp of the operate time of high-frequency lighting device and discharge lamp.But, above-mentioned filament preheating time is several milliseconds (millisecond), life time (12 to for example discharge lamp, 000 hour) be a kind of insignificant time, mean that in the present invention the operate time of aforesaid high-frequency lighting device and the time of lighting a lamp of discharge lamp come down to identical.In addition, can think operate time of the discharge lamp ignition device that contains the high-frequency lighting device, also identical with the time of lighting a lamp of operate time of above-mentioned high-frequency lighting device and discharge lamp in fact.
Dim signal both can be for example square-wave voltage, also can be direct voltage.
When changing according to accumulative total operate time and up-to-date lamp [said accumulative total operate time] means operate time of the high-frequency lighting device when changing according to up-to-date lamp.The operate time of the high-frequency lighting device that when lamp is changed, begins, can when for example up-to-date lamp is changed, make the internal clocking action, and ask for the difference of the accumulative total operate time in the time of also can calculating accumulative total operate time of high-frequency lighting device and up-to-date lamp and change and asking for by this timing.
As utilize the present invention, can utilize the operate time accumulative total timing of time set, and in nonvolatile storage device, store the high-frequency lighting device.And, when each lamp is changed, generate the dim signal of accumulative total operate time of high-frequency lighting device when changing, and the output of high-frequency lighting device is controlled according to this dim signal according to accumulative total operate time of high-frequency lighting device and lamp.And, utilize this dim signal, the light modulation level of discharge lamp is changed.
The 2nd described discharge lamp ignition device of the present invention is characterised in that, comprising: pay high-frequency lighting device with energy to discharge lamp; The time set that adds up timing operate time to the high-frequency lighting device; The nonvolatile storage device that accumulative total when utilizing time set to be changed by the accumulative total operate time of the high-frequency lighting device of accumulative total timing and up-to-date lamp is stored operate time; The difference of accumulative total operate time when calculating aforementioned accumulative total operate time and up-to-date lamp and changing, and generate the dim signal generating apparatus of dim signal according to this difference; And the control device of the high-frequency lighting device being controlled according to aforementioned dim signal.
As utilize the present invention, can utilize the operate time accumulative total timing of time set, and in nonvolatile storage device, store the high-frequency lighting device.And, when the action of each high-frequency lighting device, the difference of accumulative total operate time when calculating accumulative total operate time of high-frequency lighting device and up-to-date lamp and changing, and generate dim signal according to this difference, and according to this dim signal the output of high-frequency lighting device is controlled.And, utilize this dim signal, the light modulation level of discharge lamp is changed.
The 3rd described discharge lamp ignition device of the present invention is characterised in that: the dim signal generating apparatus replenishes for the light beam that the lighting a lamp the time of foundation discharge lamp reduced, and generate dim signal according to aforementioned difference, so that the light modulation level of discharge lamp increases from initial light modulation level.
As utilize the present invention, the difference of aforementioned accumulative total operate time in the time of can changing according to accumulative total operate time of high-frequency lighting device and up-to-date lamp generates dim signal, so that the light modulation level of discharge lamp increases from initial light modulation level, so the high-frequency lighting device can make the light modulation level of discharge lamp increase from initial light modulation level according to the action of starting time when lamp is changed.As a result, make the lighting a lamp the time of corresponding discharge lamp and the light beam that reduces is replenished.
The 4th described discharge lamp ignition device of the present invention comprises the lamp joint detection device that the connection status to high-frequency lighting device and discharge lamp detects, it is characterized in that: when lamp joint detection device detects high-frequency lighting device and discharge lamp disconnected, the accumulative total operate time when making the accumulative total of the high-frequency lighting device that utilizes time set to add up timing be set at up-to-date lamp operate time to change.
Said [lamp joint detection device detects the disconnected of high-frequency lighting device and discharge lamp] except the replacing to new discharge lamp, also comprises discharge lamp and ligthing paraphernalia cleaned.When discharge lamp and ligthing paraphernalia are cleaned, be initial light modulation level even make the light modulation level of discharge lamp, also can guarantee the lightness of setting.And, the disconnected of high-frequency lighting device and discharge lamp detected the lamp dismounting in the time of also can detecting lamp replacing, lamp cleaning certainly by lamp joint detection device.
As utilize the present invention, then after lamp joint detection device detects high-frequency lighting device and discharge lamp disconnected, when discharge lamp is connected with the high-frequency lighting device, and increase since initial stage light modulation level the operate time of the high-frequency lighting device of the light modulation level of discharge lamp when connecting according to this.
The 5th described discharge lamp ignition device of the present invention is characterised in that, comprising: pay high-frequency lighting device with energy to discharge lamp; The time set that adds up timing operate time to discharge lamp; With the nonvolatile storage device that utilizes time set to be lit a lamp and store by the accumulative total of the discharge lamp of accumulative total timing; Light a lamp the time according to aforementioned accumulative total time and the up-to-date lamp accumulative total when changing of lighting a lamp, generate the dim signal generating apparatus of dim signal; And the control device of the high-frequency lighting device being controlled according to aforementioned dim signal.
The accumulative total of discharge lamp is lit a lamp the time, is meant to be connected lighting a lamp the time of discharge lamps all on the high-frequency lighting device.That is, when discharge lamp has carried out changing for several times etc., form the aggregate-value of the time of lighting a lamp of each lamp.
As utilize the present invention, be to utilize time set to make the time of lighting a lamp of discharge lamp be added up timing, and in nonvolatile storage device, store.And, carrying out lamp when changing at every turn, generate according to the accumulative total of discharge lamp the light a lamp dim signal of time of the accumulative total of time and the lamp discharge lamp when changing of lighting a lamp, and the high-frequency lighting device is controlled according to this dim signal.And, utilize this dim signal, the light modulation level of discharge lamp is changed.
The 6th described ligthing paraphernalia of the present invention is characterised in that, comprising: as the invention the 1st to the 5th in each described discharge lamp ignition device; And the ligthing paraphernalia main body that disposes this discharge lamp ignition device.
As utilize the present invention, can be provided a kind of accumulative total operate time that can obtain the high-frequency lighting device, and the ligthing paraphernalia revised of the light beam that when each discharge lamp is changed, the lighting a lamp the time of foundation discharge lamp is reduced.
As utilize the 1st of the present invention, the accumulative total operate time of the high-frequency lighting device that can store by reading out in the non-volatile memory, and obtain accumulative total operate time of high-frequency lighting device.And, the high-frequency lighting device is owing to be according to based on controlling accumulative total operate time of self and the dim signal of up-to-date lamp accumulative total operate time when changing, so can obtain roughly certain light beam from discharge lamp according to when lamp is changed, the action of starting time carrying out the illumination correction.
As utilize the 2nd of the present invention, the accumulative total operate time of the high-frequency lighting device that can store by reading out in the non-volatile memory, and obtain accumulative total operate time of high-frequency lighting device.And, owing to generate the dim signal of the difference of the aforementioned accumulative total operate time when changing according to accumulative total operate time of high-frequency lighting device and up-to-date lamp, and the high-frequency lighting device is controlled according to this dim signal, so the high-frequency lighting device can obtain roughly certain light beam from discharge lamp according to the action of starting time carry out the illumination correction when lamp is changed.
As utilize the 3rd of the present invention, because the high-frequency lighting device is according to the action of starting time when lamp is changed, the light modulation level of discharge lamp is increased since initial stage light modulation level, so the light beam that can reduce the lighting a lamp the time of foundation discharge lamp replenishes, can get at till the replacing of life-span of discharge lamp or discharge lamp, obtain roughly certain light beam from discharge lamp.
As utilize the 4th of the present invention, when discharge lamp is connected with the high-frequency lighting device, the operate time of the high-frequency lighting device that the light modulation level of discharge lamp begins according to from this connection the time, and be increased from initial light modulation level, so the light beam that can reduce the lighting a lamp the time of foundation discharge lamp replenishes, and can obtain roughly certain light beam from discharge lamp.
As utilize the 5th of the present invention, the accumulative total operate time of the high-frequency lighting device that can store by reading out in the non-volatile memory, and obtain accumulative total operate time of high-frequency lighting device.And, the dim signal of high-frequency lighting device time because the accumulative total when changing according to light a lamp based on the accumulative total of discharge lamp time and up-to-date lamp is lit a lamp is controlled, so can obtain roughly certain light beam from discharge lamp according to when lamp is changed, the action of starting time carrying out the illumination correction.
As utilize the 6th of the present invention, can be provided a kind of accumulative total operate time that can obtain the high-frequency lighting device, and the ligthing paraphernalia revised of the light beam that can reduce the lighting a lamp the time of foundation discharge lamp.
Description of drawings
Fig. 1 is the block diagram that contains partial circuit figure of the discharge lamp ignition device of the 1st example of the present invention.
Fig. 2 is the control of light modulation level of expression discharge lamp, (a) is the variation diagram to the light modulation level of accumulative total operate time of phase inverter, (b) is the variation diagram to the dim signal of accumulative total operate time of phase inverter.
Fig. 3 is the control of light modulation level of another discharge lamp of expression, (a) is the variation diagram to the light modulation level of accumulative total operate time of phase inverter, (b) is the variation diagram to the dim signal of accumulative total operate time of phase inverter.
Fig. 4 is the block diagram that contains partial circuit figure of the discharge lamp ignition device of the 2nd example of the present invention.
Fig. 5 is the outside drawing of the ligthing paraphernalia of the 3rd example of the present invention
1: discharge lamp ignition device 2: the high-frequency lighting device
3: fluorescent lamp 3a, 3b: filament electrode
4: lamp connection detection circuit 5: control circuit
6: timing portion 7: nonvolatile storage part
8: dim signal generating unit 9: master control part
10: life tests circuit 11: rectifier smoothing circuit
12: active filter circuit 13: phase inverter
14a, 14b, 15a, 15b: outlet terminal 16: drive circuit
17: ligthing paraphernalia 18: the ligthing paraphernalia main body
19: case 19a: reflecting surface
20: lamp socket 21: the use for discharge lamp ignition device
A: the mid point B of resistance R 1 and resistance R 2: the mid point of diode D1 and resistance R 5
C1: direct current ends electricity consumption container C 2: starting and resonance capacitor
C3, C4, C11: capacitor CP1: comparator
D1～D3: diode E: substrate ground connection
FET1, FET2: field-effect transistor L1: current limliting and resonance inductor
R1～R6, R10, R11, R12, R13: resistance
Tr1:P type bipolar transistor Tr2:N type bipolar transistor
Tr10: bipolar transistor Vref1: reference power supply
Embodiment
Below, with reference to diagram an example of the present invention is described.At first, the 1st example of the present invention is described.Fig. 1 is to Figure 3 shows that the 1st example of the present invention, Figure 1 shows that the block diagram that contains partial circuit figure of discharge lamp ignition device, Figure 2 shows that the control of the light modulation level of discharge lamp, Fig. 2 (a) is depicted as the variation to the light modulation level of accumulative total operate time of phase inverter, Fig. 2 (b) is depicted as the variation diagram to the dim signal of accumulative total operate time of phase inverter, Figure 3 shows that the control of the light modulation level of other discharge lamp, Fig. 3 (a) is depicted as the variation to the light modulation level of accumulative total operate time of phase inverter, and Fig. 3 (b) is depicted as the variation diagram to the dim signal of accumulative total operate time of phase inverter.
The formation of discharge lamp ignition device 1 comprises high-frequency lighting device 2, as the fluorescent lamp 3 of discharge lamp, as the lamp connection detection circuit 4 and the control circuit 5 of lamp joint detection device.And the formation of control circuit 5 comprises timing portion 6 as time set, as the nonvolatile storage part 7 of nonvolatile storage device, as the dim signal generating unit 8 of dim signal generating apparatus and as the master control part 9 of control device.And, be provided with the life tests circuit 10 of the detection of the end of lifetime that is used to carry out fluorescent lamp 3.
The formation of high-frequency lighting device 2 comprises rectifier smoothing circuit 11, active filter circuit 12 and phase inverter 13.It is level and smooth that rectifier smoothing circuit 11 carries out rectification with the alternating voltage of commercial ac power source Vs, and this direct voltage is input to active filter circuit 12.Active filter circuit 12 is the clipping circuit that for example boosts, and its direct voltage with input is converted to the output voltage of setting, and is input to phase inverter 13.
And the grid of field-effect transistor FET1 and field-effect transistor FET2 is connected with drive circuit 16 respectively, and drive circuit 16 is connected with the master control part 9 of control circuit 5.Drive circuit 16 is according to the control signal of master control part 9, when the preheating of fluorescent lamp 3, when starting and the frequency to set respectively when lighting a lamp, makes field-effect transistor FET1, FET2 carry out switch motion alternately.
Adopt the high-frequency lighting device 2 of above-mentioned formation to utilize the switch motion of field-effect transistor FET1, FET2, to outlet terminal 14a, 14b, 15a, 15b output high voltage.At this moment, according to the dim signal of being exported from dim signal generating unit 8, master control part 9 can output to control signal drive circuit 16, and fluorescent lamp 3 light modulations are lit a lamp.And the two ends that fluorescent lamp 3 makes filament electrode 3a, 3b are connected with outlet terminal 14a, 14b, 15a, 15b by not shown lamp socket (lamp socket) respectively, and by 2 pairs in high-frequency lighting device with energy.
And, between outlet terminal 14a, the 15a of high-frequency lighting device 2, be connected with life tests circuit 10.The formation of life tests circuit 10 is included in the resistance R 1 that connects between outlet terminal 14a, 15a and series circuit, comparator C P1 and the reference power supply Verf1 of resistance R 2.Resistance R 1 and resistance R 2 are carried out dividing potential drop with the modulating voltage of fluorescent lamp 3.
Its counter-rotating input terminal of comparator C P1 is connected with reference power supply Vref1, and non-counter-rotating input terminal is connected with the mid point A of resistance R 1 and resistance R 2.That is, comparator C P1 is to the reference voltage of counter-rotating input terminal input reference power supply Verf1, and imports the voltage of aforementioned mid point A to non-counter-rotating input terminal.And the negative side of reference power supply Verf1 is connected with substrate ground connection E.And substrate ground connection E is connected with the source side of field-effect transistor FET2.And the outlet terminal of comparator C P1 is connected with the master control part 9 of control circuit 5.
Comparator C P1 is at the voltage (both end voltage of resistance R 2) of aforementioned mid point A during more than or equal to the reference voltage of reference power supply Vref1, to master control part 9 output enabling signals.That is, modulating voltage and non-load voltage (disconnecting) that 10 pairs of fluorescent lamps 3 of life tests circuit reach end of lifetime detect, and detection signal is outputed to master control part 9.
And, the formation of lamp connection detection circuit 4 comprises resistance R 3～resistance R 6, capacitor C3, C4, diode D1～D3, P type bipolar transistor Tr1 (P-type bipolar transistor) and N type bipolar transistor Tr2 (N-type bipolar transistor).Promptly, between the outlet terminal 14a of the drain electrode of field-effect transistor FET1 and high-frequency lighting device 2, connect resistance R 3, and between outlet terminal 14a, 14b, connect capacitor C3, between outlet terminal 14b, 15b, connect resistance R 4, between outlet terminal 15a, 15b, connect capacitor C4, between the source electrode of outlet terminal 15a and field-effect transistor FET2, connect the series circuit of diode D1 and resistance R 5.And, between the source electrode of outlet terminal 14a and field-effect transistor FET2, connect the base stage (base) of emitter (emitter), collector electrode (collector), diode D2 and the bipolar transistor Tr2 of resistance R 6, bipolar transistor Tr1, the series circuit of emitter.And the base stage of bipolar transistor Tr1 is connected with the mid point B of diode D1 and resistance R 5 by diode D3, and the collector electrode of bipolar transistor Tr2 is connected with the master control part 9 of control circuit 5.The collector electrode of bipolar transistor Tr2 forms the outlet terminal of lamp connection detection circuit 4.
Filament electrode 3a, 3b as fluorescent lamp 3 are connected with outlet terminal 14a, 14b, 15a, the 15b of high-frequency lighting device 2 (phase inverter 13), then when the action of active filter circuit 12, drain side from the field-effect transistor FET1 of phase inverter 13, along the path of the source side of filament electrode 3b, diode D1, resistance R 5 and the field-effect transistor FET2 of the filament electrode 3a of resistance R 3, fluorescent lamp 3, resistance R 4, fluorescent lamp 3, flow through electric current.At this moment, can preestablish each resistance value of resistance R 3～resistance R 6 etc., so that the current potential of the mid point B of diode D1 and resistance R 5 becomes than the current potential height of the emitter side of bipolar transistor Tr1.As a result, because bipolar transistor Tr1 disconnects,, the master control part 9 of control circuit 5 is not connected with substrate ground connection so bipolar transistor Tr2 also disconnects.
And, be not connected as the filament electrode 3a of fluorescent lamp 3 with outlet terminal 14a, the 14b of high-frequency lighting device 2, then from the drain electrode of the field-effect transistor FET1 direct current by resistance R 3 circulations, C3 is cut off by capacitor.And, be not connected as the filament electrode 3b of fluorescent lamp 3 with outlet terminal 15a, 15b, then from the direct current of the drain side of field-effect transistor FET1, C4 is cut off by capacitor.That is, be not connected, then can not flow through electric current to resistance R 5 with outlet terminal 14a, 14b, 15a, the 15b of high-frequency lighting device 2 as at least one of filament electrode 3a, the 3b of fluorescent lamp 3.At this moment, the current potential of the mid point B of diode D1 and resistance R 5 is set to such an extent that the current potential of emitter side of more bipolar brilliant utmost point pipe Tr1 is low.The result, drain side from field-effect transistor FET1, along the path of the source side of emitter, base stage (base), aforementioned mid point B, resistance R 5 and the field-effect transistor FET2 of resistance R 3, resistance R 6, bipolar transistor Tr1, flow through electric current, so bipolar transistor Tr1 connects.
When bipolar brilliant utmost point pipe Tr1 connected, the input voltage of phase inverter 13 (output voltage of active filter circuit 12) was because of resistance R 3 and resistance R 6 etc. descends, and it also is applied on the base stage of bipolar transistor Tr2, and bipolar transistor Tr2 is connected.When bipolar transistor Tr2 connected, the master control part 9 of control circuit 5 was connected with substrate ground connection E by collector electrode, the emitter of bipolar transistor Tr2.Here, adopt a kind of master control part 9 with after substrate ground connection is connected, the formation that driving power is stopped.That is, master control part 9 can not be controlled the field-effect transistor FET1 of phase inverter 13, the switch motion of FET2, and the action of phase inverter 13 is stopped.
Like this, the 4 pairs of high-frequency lighting devices 2 of lamp connection detection circuit (phase inverter 13) and the connection status of fluorescent lamp 3 detect.That is, when bipolar transistor Tr2 connects, high-frequency lighting device 2 and the disconnected of fluorescent lamp 3 are detected, when bipolar transistor Tr2 disconnects, the connection of high-frequency lighting device 2 and fluorescent lamp 3 is detected.And, when lamp connection detection circuit 4 detects high-frequency lighting device 2 and fluorescent lamp 3 disconnected, the field-effect transistor FET1 of the master control part 9 of utilizing control circuit 5, the switch motion of FET2 are stopped, not to outlet terminal 14a, 14b, 15a, 15b output high voltage.
The formation of control circuit 5 comprises master control part 9.And master control part 9 is connected with timing portion 6, nonvolatile storage part 7 and dim signal generating unit 8.The control that timing portion 6 utilizes master control part 9 is to adding up operate time of phase inverter 13 timing.That is, transmit control signal to drive circuit 16, and carry out timing when making field-effect transistor FET1, FET2 carry out switch motion in master control part 9.And, added up operate time of the phase inverter 13 of timing, be written in the nonvolatile storage part 7 and store.Timing portion 6 and master control part 9 form time set.
Nonvolatile storage part 7 will be stored by the accumulative total of the phase inverter 13 of accumulative total timing by timing portion 6 operate time.And, the aforementioned totally operate time when the storage lamp is changed.In addition, the life time (for example 12000 hours) of the fluorescent lamp 3 that is set in advance of storage etc.
Accumulative total operate time when dim signal generating unit 8 adopts and changes according to the accumulative total operate time of phase inverter 13 (high-frequency lighting device 2) and up-to-date lamp, generate and make the dim signal of fluorescent lamp 3 light modulations, and this dim signal is outputed to the formation of master control part 9.For example, the difference of the accumulative total operate time when accumulative total operate time of phase inverter 13 and up-to-date lamp are changed is carried out computing, and generates dim signal according to this difference.Carry out add operation according to this action accumulative total operate time of phase inverter 13 when the action of phase inverter 13.And the aforementioned accumulative total when up-to-date lamp is changed is to utilize master control part 9 and read from nonvolatile storage part 7 operate time.Therefore, when the action of phase inverter 13, the accumulative total of phase inverter 13 increases according to the action of phase inverter 13 operate time, and aforementioned difference also increases.
And, when dim signal generating unit 8 detects the connection of high-frequency lighting device 2 and fluorescent lamp 3 in the lamp connection detection circuit, when promptly on high-frequency lighting device 2, being connected with fluorescent lamp 3, the dim signal that output makes fluorescent lamp 3 light a lamp with initial light modulation level (for example 70%) is exported the dim signal that the light modulation level that makes fluorescent lamp 3 begins to increase from initial light modulation level then according to aforementioned difference.And, to adopt afterwards at predefined life time (for example 12000 hours), output makes the light modulation level of fluorescent lamp 3 form the roughly formation of the dim signal of 100% (full light).That is, dim signal portion generating unit 8 is utilized predefined function, and according to aforementioned difference the PWM dim signal is carried out computing and output.For example, the PWM dim signal of output work journey rate 30% (on duty) when initial light modulation level (70%), and according to aforementioned difference and reduce merit journey rate value, when the light modulation level 100% (full light) of the life time that reaches fluorescent lamp 3, the PWM dim signal of output work journey rate 0%.
And master control part 9 changes the switching frequency of field-effect transistor FET1, FET2 according to the dim signal from dim signal generating unit 8.By this, fluorescent lamp 3 increases the light modulation level from initial light modulation level (70%) according to aforementioned difference, and (full light) lights a lamp to show light modulation level 100% greatly behind the life time of fluorescent lamp 3.That is, make because of fluorescent lamp 3 through the low of light that its annual change caused output with because of lowly being revised of the dirty light output that causes of following long-time use, and export roughly certain light beam from fluorescent lamp 3.
Like this, dim signal generating unit 8 is replenished for the light beam that the lighting a lamp the time of foundation fluorescent lamp 3 reduced, and master control part 9 is controlled, so that the light modulation level of fluorescent lamp 3 increases according to aforementioned difference.In addition, dim signal generating unit 8 the aforementioned accumulative total operate time in the time of also can changing according to accumulative total operate time of phase inverter 13 (high-frequency lighting device 2) and up-to-date lamp, generates dim signal except aforementioned difference.
And master control part 9 is connected with the drive circuit 16 of phase inverter 13, and according to the dim signal of being exported from dim signal generating unit 8, the control signal that transmission changes the switching frequency of field-effect transistor FET1, the FET2 of phase inverter 13.
And master control part 9 is connected with life tests circuit 10, and is transfused to the detection signal (permission signal) that the end of lifetime to fluorescent lamp 3 detects.That is, when the modulating voltage of fluorescent lamp 3 rises to set point when above, or fluorescent lamp 3 becomes when disconnecting, and is transfused to the life tests signal (permission signal) of fluorescent lamp 3.
And master control part 9 is connected with lamp connection detection circuit 4, when high-frequency lighting device 2 and fluorescent lamp 3 do not connect, driving power is stopped.
And, master control part 9 is after lamp connection detection circuit 4 detects high-frequency lighting device 2 and fluorescent lamp 3 disconnected, detect when connecting once more, aforementioned accumulative total operate time when utilizing timing portion 6 to be set at up-to-date lamp operate time and to change by the accumulative total of the high-frequency lighting device 2 of accumulative total timing, and in nonvolatile storage part 7, store.
Below, the effect of the present invention's the 1st example is described.Under 4 pairs of high-frequency lighting devices 2 of lamp connection detection circuit and the state that detects being connected of fluorescent lamp 3, promptly under the situation of the filament electrode 3a, the 3b that are connected with fluorescent lamp 3 on outlet terminal 14a, the 14b of high-frequency lighting device 2,15a, the 15b, when commercial ac power stream Vs connects, utilize the control of the master control part 9 of control circuit 5, field-effect transistor FET1, the FET2 of phase inverter 13 carry out switch motion.Then, the high frequency voltage to outlet terminal 14a, 14b, 15a, 15b output phase inverter 13 is lit a lamp fluorescent lamp 3.
And, on high-frequency lighting device 2, connect fluorescent lamp 3, when lamp connection detection circuit 4 detected this connection, dim signal generating unit 8 was such shown in Fig. 2 (b), to the PWM dim signal of master control part 9 output work journey rates 30%.Master control part 9 changes the switching frequency of field-effect transistor FET1, FET2 according to this PWM dim signal.By this, the high frequency voltage that is output to the phase inverter 13 of outlet terminal 14a, 14b, 15a, 15b changes, and shown in Fig. 2 (a), fluorescent lamp 3 is lit a lamp with initial light modulation level 70%.
And dim signal generating unit 8 is through the life cycle (for example 12000 hours) of the fluorescent lamp 3 that sets in advance, and utilizes the function that sets in advance, and to aforementioned difference the merit journey rate value of PWM dim signal reduced.Master control part 9 changes the switching frequency of field-effect transistor FET1, FET2 according to the PWM dim signal.By this, the light modulation level of fluorescent lamp 3 is increased according to aforementioned difference from initial light modulation level 70% beginning.
And when fluorescent lamp 3 reaches end of lifetime, and modulating voltage is when rising, from the detection signal (permission signal) of life tests circuit 10 to the life-span of master control part 9 input fluorescent lamps 3.At this moment, master control part 9 stops the field-effect transistor FET1 of phase inverter 13, the switch motion of FET2, and fluorescent lamp 3 is turned off the light.Perhaps, 9 pairs of dim signal generating units 8 of master control part are notified the input of this detection signal.Dim signal generating unit 8 is shown in Fig. 2 (b), and 9 outputs make fluorescent lamp 3 form the PWM dim signal of the merit journey rate (30%) of initial light modulation level (70%) to master control part.Master control part 9 according to the PWM dim signal of merit journey rate (30%), makes fluorescent lamp 3 light a lamp with initial light modulation level 70% shown in Fig. 2 (a).By this, make from the emitted light beams of fluorescent lamp 3 and reduce.
And, centre at the life time (for example 12000 hours) of fluorescent lamp 3, become with fluorescent lamp 3 as high-frequency lighting device 2 and not to be connected, and when high-frequency lighting device 2 is connected with fluorescent lamp 3, master control part 9 is controlled dim signal generating unit 8 shown in Fig. 2 (b), so that fluorescent lamp 3 returns initial light modulation level (70%).Then, dim signal generating unit 8 is utilized the control of master control part 9, makes fluorescent lamp 3 form the PWM dim signal of the merit journey rate (30%) of initial light modulation level (70%) to master control part 9 outputs.Master control part 9 is shown in Fig. 2 (a), and the PWM dim signal according to from dim signal generating unit 8 makes fluorescent lamp 3 light a lamp with initial light modulation level 70%.
In the centre of the life time of fluorescent lamp 3, high-frequency lighting device 2 and fluorescent lamp 3 unconnected situation that becomes for example is the cleaning of fluorescent lamp 3 and ligthing paraphernalia.When fluorescent lamp 3 and ligthing paraphernalia are cleaned, make the light modulation level of fluorescent lamp 3 form initial light modulation level (70%) once more, also can guarantee the lightness that obtains setting from ligthing paraphernalia.And, even with similarly above-mentioned, according to aforementioned difference the light modulation level of fluorescent lamp 3 is increased, also can be before at the life time that reaches fluorescent lamp 3 (for example 12000 hours), this light modulation level utilize life tests circuit 10 to detect end of lifetime, so also may not reach 100% (full light)
In addition, life tests circuit 10 also can add the testing circuit that half-wave voltage is detected except the modulating voltage that detects fluorescent lamp 3.That is, as long as life tests circuit 10 is the formation that adopts the end of lifetime to fluorescent lamp 3 to detect.
And when discharge lamp ignition device 1 is replaced, or ligthing paraphernalia by the accumulative total operate time that reads out in the phase inverter of being stored in the nonvolatile storage part 7 13, can be obtained the accumulative total operate time of phase inverter 13 when being replaced.And, the accumulative total operate time of the phase inverter 13 when exchanging, can obtain the historical record of fluorescent lamp 3 by sense light.Utilize this historical record, can hold time actual life of each fluorescent lamp 3.
In addition, dim signal generating unit 8 also can adopt shown in Fig. 3 (b), lamp is changed or lamp connects once more carrying out, and make fluorescent lamp 3 with initial light modulation level (for example 70%) when lighting a lamp, the PWM dim signal of output work journey rate 70%, and the difference of the aforementioned accumulative total action when changing according to accumulative total operate time of phase inverter 13 and up-to-date lamp, merit journey rate value is increased, and when the light modulation level 100% (full light) of the life time that reaches fluorescent lamp 3, the formation of the PWM dim signal of output work journey rate 100%.
And, master control part 9 also can adopt shown in Fig. 3 (a), according to from the dim signal of dim signal generating unit 8, the dimming level that makes fluorescent lamp 3 is from initial light modulation level (70%) to light modulation level 100% (full light), the formation that the aforementioned difference of foundation increases.
Output to the PWM dim signal of master control part 9 from dim signal generating unit 8, the output voltage that increases one by one for from the initial light modulation level (70%) of fluorescent lamp 3 to light modulation level 100% (full light), because master control part 9 forms the control signal that direct voltage is increased, so but the connecting circuit simplicity of master control part 9 and dim signal generating unit 8.Promptly, as shown in Figure 2, initial light modulation level (70%) from fluorescent lamp 3 begun the PWM dim signal of the output voltage that reduces one by one to light modulation level 100% (full light), when when master control part 9 forms the control signal of direct voltage increase, need for example circuit for reversing of aforementioned output voltage, circuit is constituted become complicated.
And master control part 9 also can replace the accumulative total operate time of phase inverter 13, and makes the accumulative total time of lighting a lamp of 6 pairs of all fluorescent lamps 3 that are connected with high-frequency lighting device 2 of timing portion carry out timing, and stores in nonvolatile storage part 7.The light a lamp timing of time of the accumulative total of fluorescent lamp 3 can be when for example master control part 9 makes field-effect transistor FET1, FET2 carry out switch motion, and does not export from life tests circuit 10 and to carry out when allowing signal.And, can be by the output of the light of light sensors fluorescent lamp 3, and undertaken during by the light output of light sensors fluorescent lamp 3.
And, dim signal generating unit 8 also can according to the accumulative total of fluorescent lamp 3 light a lamp time and the up-to-date lamp aforementioned accumulative total when changing light a lamp the time difference and generate dim signal.In this case, also can obtain with to the accumulative total of phase inverter 13 same effect, effect during operate time.
Below, to discharge lamp ignition device, describe with reference to diagram about the 2nd example of the present invention.In addition, to the inscape identical or suitable, pay with identical symbol and omit its explanation with the 1st example.
Figure 4 shows that the block diagram that contains partial circuit figure of the discharge lamp ignition device of the 2nd example of the present invention.In the drawings, at first, the formation of lamp connection detection circuit 4 comprises the inductor L1 that resistance R 3, current limliting and resonance uses, filament electrode 3a, resistance R 4, filament electrode 3b, resistance R 10, bipolar transistor Tr10, resistance R 11 and the master control part 9 of fluorescent lamp 3.
And, be connected with outlet terminal 14a, 14b, 15a, the 15b of high-frequency lighting device 2 as fluorescent lamp 3, then in foregoing circuit, flow through electric current, and produce voltage in the base stage of bipolar transistor Tr10, so bipolar transistor Tr10 connects, and lamp connection detection circuit 4 can judge that lamp is connected.On the other hand, be removed, then can not flow through electric current as outlet terminal 14a, 14b, the some of 15a, 15b of fluorescent lamp 3 from high-frequency lighting device 2, thus bipolar transistor Tr10 disconnection, and the lamp connection detection circuit can judge that lamp is not connected.
Secondly, the formation of life tests circuit 10 comprises: resistance R 12, capacitor C11, resistance R 13 and master control part 9.When fluorescent lamp 3 carries out half-wave discharge, capacitor C11 is charged by resistance R 12.Utilize half-wave discharge towards, make the voltage knee-action of capacitor C11.In master control part 9, observe this voltage whether in the scope of setting, as departing from, then be judged as the life-span of the fluorescent lamp 3 that forms because of half-wave discharge etc. from setting range.In addition, comprise the control content of other circuit operation, identical with the discharge lamp ignition device of the 1st example, omit its explanation.
Below, the 3rd example of the present invention is described.
Figure 5 shows that the outside drawing of the ligthing paraphernalia of the 3rd example of the present invention.In addition, the part identical with Fig. 1 paid with identical symbol and omission explanation.
For to because of fluorescent lamp 3 through the low of light that its annual change caused output (light beam) and the dirty light output of using between because of accompanied by long-term (light beam) that causes low, and lowly revising because of the dirty reflection efficiency that causes of case 19, and the light modulation level that makes fluorescent lamp 3 is in the scope of life time (12000 hours), from initial light modulation level (70%) to 100% (full light), increase the operate time according to the phase inverter 13 that begins when lamp is changed, so ligthing paraphernalia 17 can throw light in roughly certain lightness.
And, when fluorescent lamp 3 reaches end of lifetime, utilize the life-span of 10 pairs of fluorescent lamps 3 of life tests circuit to detect, and make the fluorescent lamp light-off or make fluorescent lamp 3 be controlled in initial light modulation level (70%), institute is so that ligthing paraphernalia 17 light-offs, or make ligthing paraphernalia 17 formed bright deepenings, and report the life-span of fluorescent lamp 3.By this, can promptly change fluorescent lamp 3.
And, as before the life time of fluorescent lamp 3, carry out the maintenance operations such as cleaning of fluorescent lamp 3 and ligthing paraphernalia 17, then the light modulation level of fluorescent lamp 3 is controlled as initial light modulation level (70%), so the light that ligthing paraphernalia 17 can obtain setting, and can seek province's electrification.
And, when ligthing paraphernalia 17 is changed at use for discharge lamp ignition device 21, or lighting device 17 is when self going out of use, the accumulative total operate time of the phase inverter of being stored in the nonvolatile storage part 7 13 (high-frequency lighting device 2) can be read, and the life time and the time used of phase inverter 13 (high-frequency lighting device 2) can be obtained by this.And, the accumulative total operate time of the phase inverter 13 when changing, can obtain the historical record of fluorescent lamp 3, time actual life that can hold each fluorescent lamp 3 by sense light.
Claims (5)
1. discharge lamp ignition device is characterized in that it comprises:
The high-frequency lighting device is paid with energy discharge lamp;
Time set is to adding up operate time of high-frequency lighting device timing;
Non-volatile memory, store the accumulative total operate time of the high-frequency lighting device that utilizes the timing of time set accumulative total and the accumulative total operate time of the high-frequency lighting device when each lamp changed, stored and preserved, and output, read and the aforementioned historical record of accumulative total operate time of high-frequency lighting device when obtaining accumulative total operate time of high-frequency lighting device of aforementioned storage and lamp that aforementioned storage is preserved and changing as historical record;
The dim signal generating apparatus, generates dim signal at the accumulative total operate time when changing according to aforementioned accumulative total operate time and up-to-date lamp; And
Control device is controlled the high-frequency lighting device according to aforementioned dim signal;
Aforementioned historical record when wherein changing by the each lamp that is stored in aforementioned non-volatile memory, and grasp aforementioned discharge lamp time actual life.
2. discharge lamp ignition device is characterized in that it comprises:
The high-frequency lighting device is paid with energy discharge lamp;
Time set is to adding up operate time of high-frequency lighting device timing;
Nonvolatile storage device, store the accumulative total operate time of the high-frequency lighting device that utilizes the timing of time set accumulative total, and the accumulative total operate time of the high-frequency lighting device when each lamp is changed, stored and preserved, and output, read and the aforementioned historical record of accumulative total operate time of high-frequency lighting device when obtaining accumulative total operate time of high-frequency lighting device of aforementioned storage and lamp that aforementioned storage is preserved and changing as historical record;
The dim signal generating apparatus, the difference of the accumulative total operate time when calculating aforementioned accumulative total operate time and up-to-date lamp and changing, and generate dim signal according to this difference; And
Control device, the control device that the aforementioned dim signal of foundation is controlled the high-frequency lighting device;
Aforementioned historical record when wherein changing by the each lamp that is stored in aforementioned non-volatile memory, and grasp aforementioned discharge lamp time actual life.
3. discharge lamp ignition device according to claim 2, it is characterized in that: the dim signal generating apparatus replenishes for the light beam that the lighting a lamp the time of foundation discharge lamp reduced, and generate dim signal according to aforementioned difference, so that the light modulation level of discharge lamp increases from initial light modulation level.
4. discharge lamp ignition device according to claim 2, comprise the lamp joint detection device that the connection status to high-frequency lighting device and discharge lamp detects, it is characterized in that: when lamp joint detection device detects high-frequency lighting device and discharge lamp disconnected, the accumulative total operate time when making the accumulative total of the high-frequency lighting device that utilizes time set to add up timing be set at up-to-date lamp operate time to change.
5. ligthing paraphernalia is characterized in that it comprises:
The described discharge lamp ignition device of in the claim 1 to 4 each; And
Be provided with the ligthing paraphernalia main body of this discharge lamp ignition device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004313781 | 2004-10-28 | ||
| JP2004-313781 | 2004-10-28 | ||
| JP2004313781 | 2004-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1767711A CN1767711A (en) | 2006-05-03 |
| CN1767711B true CN1767711B (en) | 2010-10-27 |
Family
ID=36743233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510116629 Expired - Fee Related CN1767711B (en) | 2004-10-28 | 2005-10-26 | Discharge lamp ligniting device and light fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1767711B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8648544B2 (en) * | 2008-06-20 | 2014-02-11 | Panasonic Corporation | Illumination lighting apparatus, illumination apparatus, and illumination system |
| JP5720882B2 (en) * | 2011-01-31 | 2015-05-20 | 東芝ライテック株式会社 | Lighting device and lighting device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6034490A (en) * | 1997-06-12 | 2000-03-07 | Koito Manufacturing Co., Ltd. | Lighting circuit for discharge lamp |
| CN1378414A (en) * | 2001-03-28 | 2002-11-06 | 东芝照明技术株式会社 | Discharging lamp ignitor and lighting device |
-
2005
- 2005-10-26 CN CN 200510116629 patent/CN1767711B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6034490A (en) * | 1997-06-12 | 2000-03-07 | Koito Manufacturing Co., Ltd. | Lighting circuit for discharge lamp |
| CN1378414A (en) * | 2001-03-28 | 2002-11-06 | 东芝照明技术株式会社 | Discharging lamp ignitor and lighting device |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-200692A 2000.07.18 |
| JP特开2004-259533A 2004.09.16 |
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| Publication number | Publication date |
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| CN1767711A (en) | 2006-05-03 |
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