CN103697337A - Lamp - Google Patents
Lamp Download PDFInfo
- Publication number
- CN103697337A CN103697337A CN201210367510.3A CN201210367510A CN103697337A CN 103697337 A CN103697337 A CN 103697337A CN 201210367510 A CN201210367510 A CN 201210367510A CN 103697337 A CN103697337 A CN 103697337A
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- CN
- China
- Prior art keywords
- driver
- light fixture
- battery pack
- light emitting
- emitting diodes
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- 239000000758 substrate Substances 0.000 claims description 17
- 238000005538 encapsulation Methods 0.000 claims description 2
- 230000000051 modifying Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000002459 sustained Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
The invention provides a lamp, which comprises a battery pack, a driver, at least two groups of light emitting diodes, an inductor and a freewheel diode, wherein the battery pack is used for providing direct current voltage, the driver is connected to the battery pack for receiving the direct current voltage and outputting PWM (pulse width modulation) signals, the at least two groups of light emitting diodes are connected to the driver for receiving the PWM signals, the light emitting diodes in each group of light emitting diodes are respectively connected in series, in addition, the at least two groups of light emitting diodes are connected in parallel to a position between the driver and the battery pack, the inductor is connected to a position between the driver and at least two groups of light emitting diodes, a negative electrode of the freewheel diode is connected to the output end of the driver, and a positive electrode of the freewheel diode is connected with the grounding end of the driver. The lamp has the advantages that the circuit structure is simple and stable, in addition, the circuit is a voltage reduction circuit, and a voltage boosting circuit is not needed, so the electric efficiency is improved, and the maintenance cost of the lamp is reduced.
Description
Technical field
The present invention relates to lighting field, relate in particular to a kind of light fixture.
Background technology
Conventionally, portable floodlight is applied to realize portable lighting in the industries such as railway, shipping or shipbuilding.The light source of traditional floodlight adopts U power saving fluorescent lamp.But the startup of fluorescent lamp and operating voltage are higher, in Flood lamps and lanterns, need to adopt booster circuit to meet the desired high pressure of fluorescent lamp, booster circuit more complicated in wherein said light fixture, unstable, and electrical efficiency is low, thus cause the maintenance cost of described light fixture high.
Summary of the invention
The object of the present invention is to provide a kind of light fixture, to reduce the maintenance cost of described light fixture.
In order to solve the problems of the technologies described above, the invention provides a kind of light fixture, comprising:
Battery pack, for providing DC voltage;
Driver, the voltage end of described driver is connected to the positive pole of described battery pack, to receive described DC voltage, the earth terminal of described driver is connected to the negative pole of described battery pack, the gating end of described driver is connected to the positive pole of described battery pack by resistance, the vibration end of described driver is by capacity earth, the output output pwm signal of described driver;
At least two group light emitting diodes are connected to the output of driver, to receive described pwm signal; Wherein, the light emitting diode in every group of light emitting diode is all connected in series, and described at least two group light emitting diodes are connected in parallel between the output of described driver and the negative pole of described battery pack;
Inductance, is connected between the output and described at least two group light emitting diodes of described driver; And
Fly-wheel diode, the negative electrode of described fly-wheel diode is connected to the output of described driver, and the positive pole of described fly-wheel diode is connected to the earth terminal of described driver.
Wherein, described light fixture also comprises substrate, and described at least two group light emitting diodes are distributed on described substrate equably.
Wherein, described at least two group light emitting diodes adopt the mode of paster encapsulation to be uniformly distributed on described substrate.
Wherein, described light fixture also comprises radiator, and substrate is attached on described radiator.
Wherein, described radiator is Rhizoma Sparganii shape, and the quantity of described substrate is three, and described substrate is attached to respectively on three surfaces of radiator.
Wherein, the cross section of described radiator is equilateral triangle.
Wherein, described light fixture also comprises charging inlet and diode, the positive terminal of described charging inlet is connected to the positive pole of described diode, and the negative pole of described diode is connected to the positive pole of described battery pack, and the negative pole of described battery pack is connected to the negative pole end of described charging inlet.
Wherein, described light fixture also comprises housing and is arranged on the switch on described housing, described charging inlet is arranged on described housing, the voltage end of described driver is connected to the positive pole of described battery pack by described switch, described switch is controlled being connected between the positive pole of described battery pack and the voltage end of described driver, thereby control described driver, whether exports described pwm signal to described at least two group light emitting diodes.
Wherein, on described housing, be provided with fixture, for described light fixture is fixed on to predeterminated position.
Wherein, described fixture comprises magnetic element, and described magnetic element is arranged at the base plate of described housing, so that described light fixture is adsorbed in to described predeterminated position.
A kind of light fixture of the present invention originally comprises battery pack, driver, at least two group light emitting diodes, inductance and fly-wheel diode.Described battery pack is used for providing DC voltage; Described driver is connected to described battery pack, to receive described DC voltage, and output pwm signal; Described at least two group light emitting diodes are connected to driver, to receive described pwm signal; Wherein, the light emitting diode in every group of light emitting diode is all connected in series, and described at least two group light emitting diodes are connected in parallel between described driver and described battery pack; Described inductance is connected between the output and described at least two group light emitting diodes of described driver; The negative electrode of described fly-wheel diode is connected to the output of described driver, and the positive pole of described fly-wheel diode is connected to the earth terminal of described driver.The circuit structure of described light fixture is simple, stable and be reduction voltage circuit, and does not need booster circuit, thereby electrical efficiency is provided, and has lowered the maintenance cost of light fixture.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of first direction of the better embodiment of light fixture of the present invention;
Fig. 2 is the circuit diagram of light fixture of the present invention;
Fig. 3 is the schematic diagram of second direction of the better embodiment of light fixture of the present invention;
Fig. 4 is the top view schematic diagram of the better embodiment of light fixture of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
Refer to Fig. 1 and Fig. 2, better embodiment of the present invention provides a kind of light fixture 100.Described light fixture 100 comprises battery pack 10, driver 20 and at least two group light emitting diodes 30.Wherein, the group number of described light emitting diode can be adjusted according to actual needs.
Described battery pack 10 is for providing DC voltage.Wherein, described battery pack 10 comprises first and second rechargeable battery BT1 and BT2.Described first and second rechargeable battery BT1 and BT2 are connected in series.It is the positive pole that the negative pole of described the first rechargeable battery BT1 is connected to described the second rechargeable battery BT2.The positive pole of described the first rechargeable battery BT1 is as the positive pole of described battery pack 10.The negative pole of described the second rechargeable battery BT2 is done the negative pole as described battery pack 10.
Described driver 20 is connected to described battery pack 10, to receive described DC voltage, and exports PWM(Pulse width modulation, pulse width modulation) signal.Wherein, described driver 20 comprises voltage end VCC, earth terminal GND, output OUT, gating end CS and vibration end OSC.Described voltage end VCC is connected to the positive pole of described battery pack 10, usings and receives described DC voltage as operating voltage.Described earth terminal GND is connected to the negative pole of described battery pack 10.Described gating end CS is connected to the positive pole of described battery pack 10 by resistance R 1.Described vibration end OSC is connected to the negative pole of described battery pack 10 by capacitor C 2.In the present embodiment, described driver 20 can be PWM constant-current driven chip.
Described at least two group light emitting diodes 30 are connected to described driver 20.Light emitting diode in described every group of light emitting diode 30 is all connected in series, and described at least two group light emitting diodes 30 are connected in parallel between described driver 20 and described battery pack 10.
Described light fixture 100 also comprises sustained diode 0 and inductance L 1.Described inductance L 1 is connected between the output OUT and described at least two group light emitting diodes 30 of described driver 20.The negative electrode of described sustained diode 0 is connected to the output OUT of described driver 20.The positive pole of described sustained diode 0 is connected to the earth terminal GND of described driver 20.
Please continue to refer to Fig. 2-Fig. 3, described light fixture 100 also comprises housing 40, is arranged on substrate 50 and radiator 60 in housing 40, and described substrate 50 is attached on described radiator 60.Described at least two group light emitting diodes 30 are distributed on described substrate 50 equably.
In the present embodiment, described radiator 60 is Rhizoma Sparganii shape, and the cross section of described radiator 60 is equilateral triangle.The quantity of described substrate 50 is three.Described substrate 50 is attached to respectively on three surfaces of radiator 60.
In other embodiments, the shape in the cross section of the shape of described radiator 60 and radiator 60 can be adjusted according to actual needs.
Please continue to refer to Fig. 4, described light fixture 100 also comprises charging inlet 70 and diode D.Described charging inlet 70 is arranged on described housing 40.The positive terminal CH+ of described charging inlet 70 is connected to the positive pole of described diode D, and the negative pole of described diode D is connected to the positive pole of described battery pack 10, and the negative pole of described battery pack 10 is connected to the negative pole end CH-of described charging inlet 70.
Described light fixture 100 also comprises interrupteur SW and fixture (not shown).Described interrupteur SW is arranged on described housing 40.Described interrupteur SW is connected between the positive pole of described battery pack 10 and the voltage end VCC of described driver 20, to control, starts described driver 20, thereby control described driver 20, whether exports described pwm signal to described at least two group light emitting diodes 30.Described fixture is arranged on described housing 40, for described light fixture 100 is fixed on to predeterminated position.
Wherein, described fixture can be for magnetic element be if magnet and/or hook element are as lanyard (not shown).Described magnet is arranged on the bottom of described housing 40, to facilitate, described light fixture 100 is adsorbed on described predeterminated position.Described lanyard is arranged on described housing 40 for described light fixture 100 is suspended on to described predeterminated position.
Light fixture 100 of the present invention comprises battery pack 10, driver 20 and at least two group light emitting diodes 30.Described battery pack 10 is for providing DC voltage; Described driver is connected to described battery pack, to receive described DC voltage, and output pwm signal; Described at least two group light emitting diodes 30 are connected to driver, to receive described pwm signal; Wherein, the light emitting diode in every group of light emitting diode is all connected in series, and described at least two group light emitting diodes 30 are connected in parallel between described driver and described battery pack.The circuit structure of described light fixture 100 is simple, stable and be reduction voltage circuit, thereby electrical efficiency is provided, and has lowered the maintenance cost of light fixture 100.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a light fixture, comprising:
Battery pack, for providing DC voltage;
Driver, the voltage end of described driver is connected to the positive pole of described battery pack, to receive described DC voltage, the earth terminal of described driver is connected to the negative pole of described battery pack, the gating end of described driver is connected to the positive pole of described battery pack by resistance, the vibration end of described driver is by capacity earth, the output output pwm signal of described driver;
At least two group light emitting diodes are connected to the output of driver, to receive described pwm signal; Wherein, the light emitting diode in every group of light emitting diode is all connected in series, and described at least two group light emitting diodes are connected in parallel between the output of described driver and the negative pole of described battery pack;
Inductance, is connected between the output and described at least two group light emitting diodes of described driver; And
Fly-wheel diode, the negative electrode of described fly-wheel diode is connected to the output of described driver, and the positive pole of described fly-wheel diode is connected to the earth terminal of described driver.
2. light fixture according to claim 1, is characterized in that, described light fixture also comprises substrate, and described at least two group light emitting diodes are distributed on described substrate equably.
3. light fixture according to claim 2, is characterized in that, described at least two group light emitting diodes adopt the mode of paster encapsulation to be uniformly distributed on described substrate.
4. light fixture according to claim 2, is characterized in that, described light fixture also comprises radiator, and substrate is attached on described radiator.
5. light fixture according to claim 4, is characterized in that, described radiator is Rhizoma Sparganii shape, and the quantity of described substrate is three, and described substrate is attached to respectively on three surfaces of radiator.
6. light fixture according to claim 5, is characterized in that, the cross section of described radiator is equilateral triangle.
7. light fixture according to claim 1, it is characterized in that, described light fixture also comprises charging inlet and diode, the positive terminal of described charging inlet is connected to the positive pole of described diode, the negative pole of described diode is connected to the positive pole of described battery pack, and the negative pole of described battery pack is connected to the negative pole end of described charging inlet.
8. light fixture according to claim 7, it is characterized in that, described light fixture also comprises housing and is arranged on the switch on described housing, described charging inlet is arranged on described housing, the voltage end of described driver is connected to the positive pole of described battery pack by described switch, described switch is controlled being connected between the positive pole of described battery pack and the voltage end of described driver, thereby control described driver, whether exports described pwm signal to described at least two group light emitting diodes.
9. light fixture according to claim 8, is characterized in that, on described housing, is provided with fixture, for described light fixture is fixed on to predeterminated position.
10. light fixture according to claim 9, is characterized in that, described fixture comprises magnetic element, and described magnetic element is arranged at the base plate of described housing, so that described light fixture is adsorbed in to described predeterminated position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367510.3A CN103697337A (en) | 2012-09-28 | 2012-09-28 | Lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367510.3A CN103697337A (en) | 2012-09-28 | 2012-09-28 | Lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103697337A true CN103697337A (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210367510.3A Pending CN103697337A (en) | 2012-09-28 | 2012-09-28 | Lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103697337A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509234A (en) * | 2009-03-12 | 2009-08-19 | 许绪华 | Electronic triangular caution plate for automobile |
| CN101742783A (en) * | 2010-01-21 | 2010-06-16 | 海洋王照明科技股份有限公司 | High power LED drive circuit with emergency function |
| CN101846248A (en) * | 2010-02-10 | 2010-09-29 | 上海嘉塘电子有限公司 | 360-dgree luminous LED self-heat-radiation fluorescent lamp type lamp fitting |
| CN101909377A (en) * | 2009-06-08 | 2010-12-08 | 海洋王照明科技股份有限公司 | Warning light circuit |
| CN201937925U (en) * | 2011-01-24 | 2011-08-17 | 河海大学常州校区 | LED constant current driver with function of voltage reduction |
| CN102466139A (en) * | 2010-11-18 | 2012-05-23 | 海洋王照明科技股份有限公司 | Portable lighting device |
-
2012
- 2012-09-28 CN CN201210367510.3A patent/CN103697337A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509234A (en) * | 2009-03-12 | 2009-08-19 | 许绪华 | Electronic triangular caution plate for automobile |
| CN101909377A (en) * | 2009-06-08 | 2010-12-08 | 海洋王照明科技股份有限公司 | Warning light circuit |
| CN101742783A (en) * | 2010-01-21 | 2010-06-16 | 海洋王照明科技股份有限公司 | High power LED drive circuit with emergency function |
| CN101846248A (en) * | 2010-02-10 | 2010-09-29 | 上海嘉塘电子有限公司 | 360-dgree luminous LED self-heat-radiation fluorescent lamp type lamp fitting |
| CN102466139A (en) * | 2010-11-18 | 2012-05-23 | 海洋王照明科技股份有限公司 | Portable lighting device |
| CN201937925U (en) * | 2011-01-24 | 2011-08-17 | 河海大学常州校区 | LED constant current driver with function of voltage reduction |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20140402 |