CN201145225Y - Small power LED illuminating bulb - Google Patents
Small power LED illuminating bulb Download PDFInfo
- Publication number
- CN201145225Y CN201145225Y CNU2008200786207U CN200820078620U CN201145225Y CN 201145225 Y CN201145225 Y CN 201145225Y CN U2008200786207 U CNU2008200786207 U CN U2008200786207U CN 200820078620 U CN200820078620 U CN 200820078620U CN 201145225 Y CN201145225 Y CN 201145225Y
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- CN
- China
- Prior art keywords
- emitting diode
- light emitting
- lamp holder
- circuit board
- printed circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a low power LED lighting bulb, comprising a lamp cap and a lamp housing closely connected with the lamp cap, wherein, a printed circuit board is clamped in the cavity of the lamp housing; one side of the printed circuit board toward the lamp cap is provided with a drive circuit of the LED while the other side is provided with a pin picture; and a lampshade covers the lamp housing. The lighting bulb is characterized in that LEDs are uniformly arranged on the pin picture of the printed circuit board through taking the axle wire of the lamp cap as the axes and according to the equidistant concentric circular ring; and each LED is slightly tilted relative to the axle wire of the lamp cap and has the same tilt angle; the drive circuit of each LED comprises an external power supply which is connected to a rectifier bridge through a buck current-limiting circuit; and two ends of the rectifier are connected in parallel with a filter and voltage regulator circuit which applies the voltage to the LED group through corresponding to voltage trimming circuits with different output powers.
Description
Technical field
The utility model relates to a kind of lighting bulb, especially adopts the bulb of light emitting diode as cold light source.
Background technology
At present, all are illuminating, and various to have a lamp and gas discharge bulb light to imitate low, and thermal losses is big, and service life is short, adapts to power supply fluctuation ability, and when opening and closing lamp the response time of light source long.
Summary of the invention
The purpose of this utility model is at existing light source above shortcomings, proposes a kind of lamplight brightness height, and thermal losses is little, keeps constant temperature during work, long service life, and the angle of divergence is big simultaneously, but illumination zone is big, and the willing lighting bulb of power supply when opening and closing lamp.
The technical solution of the utility model is: a kind of LED illumination bulb comprises lamp holder, with the close-connected lamp housing of lamp holder; Printed circuit board (PCB) is stuck in the lamp housing inner chamber, by silicon rubber printed circuit board (PCB) periphery and lamp housing is tightly connected simultaneously; Printed circuit board (PCB) is provided with the drive circuit of light emitting diode towards the one side of lamp holder, the pin figure of another side distribution light emitting diode, lampshade covers on the lamp housing, it is characterized in that: with the lamp holder axis is the axle center, according to equidistant donut evenly distributed light emitting diode on the pin figure of described printed circuit board (PCB), and each light emitting diode is with respect to the axis slight inclination of lamp holder, and the inclination angle is identical.
A kind of LED illumination bulb, it adopts light emitting diode as light-emitting component, the drive circuit of described light-emitting component comprises external power supply, this external power supply is connected to rectifier bridge by the step-down current-limiting circuit, and the two ends at rectifier bridge are parallel with filter regulator circuit, by the voltage trimming circuit of corresponding different output power, voltage is applied to the light emitting diode group.
A kind of LED illumination bulb comprises lamp holder, with the close-connected lamp housing of lamp holder; Printed circuit board (PCB) is stuck in the lamp housing inner chamber; Printed circuit board (PCB) is provided with the drive circuit of light emitting diode towards the one side of lamp holder, the pin figure of another side distribution light emitting diode, lampshade covers on the lamp housing, it is characterized in that: with the lamp holder axis is the axle center, according to equidistant donut evenly distributed light emitting diode on the pin figure of described printed circuit board (PCB), and each light emitting diode is with respect to the axis slight inclination of lamp holder, and the inclination angle is identical; The drive circuit of described light emitting diode comprises external power supply, this external power supply is connected to rectifier bridge by the step-down current-limiting circuit, and the two ends at rectifier bridge are parallel with filter regulator circuit, by the voltage trimming circuit of corresponding different output power, voltage are applied to the light emitting diode group.
The utility model has the advantages that installation is convenient, easy to use, and luminous soft as the bulb of light source, the angle of divergence is big, but range of application has enlarged much than common bulb.By improved circuit design, the light source response has been satisfied the needs of some special dimensions rapidly when opening and closing lamp.Compare with common bulb, lighting bulb thermal losses of the present utility model is little, and it is hot to be not easy to generate heat, and makes the bulb outer wall keep permanent low-temperature condition.Owing to adopt light emitting diode, improved the service life of bulb greatly simultaneously, thereby reduced the cost that bulb updates as main light-emitting component.
Description of drawings
Fig. 1 is the bulb structure schematic diagram according to the utility model embodiment;
Fig. 2 is the bulb driving circuit schematic diagram according to the utility model embodiment;
Fig. 3 arranges schematic diagram according to the light emitting diode of the bulb of the utility model embodiment;
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the bulb structure schematic diagram according to the utility model embodiment.Wherein, standard lamp head 1, for example the E27 lamp holder closely is connected with lamp housing 2 by silicone rubber adhesive; Printed circuit board (PCB) 3 is stuck in lamp housing 2 inner chambers, and with vertical placement the in lamp holder 1 axis; Printed circuit board (PCB) 3 is provided with the drive circuit 6 of light-emitting component, the pin figure of another side distribution light-emitting component, the pin figure of the light emitting diode described in present embodiment (LED) 4 towards the one side of lamp holder 1.As shown in Figure 3, with lamp holder 1 axis is the axle center, according to equidistant donut evenly distributed light emitting diode 4 on the pin figure of described printed circuit board (PCB) 3, and each light emitting diode 4 is with respect to the axis slight inclination of lamp holder 1, the inclination angle is identical, preferably at 0 °-5 °, when opening whole light emitting diode group, to make that the light that whole light source is sent is bigger with respect to the angle of divergence of described axis, thereby make illumination zone wider.The tube core of drive circuit 6, printed circuit board (PCB) 3 and light emitting diode 4 adopts silicon rubber to bond together.Have enough spaces between printed circuit board (PCB) 3 and the lamp holder 1, be beneficial to natural heat dissipation.Preferably, be distributed with a plurality of apertures on the lamp housing 2, the heat that is beneficial to the generation of light-emitting component and circuit is by shedding naturally in the chamber.Lampshade 5 is fixed on the lamp housing 2, to protect described light-emitting component and circuit.
Fig. 2 is the bulb driving circuit schematic diagram according to the utility model embodiment.Wherein, external power supply is generally the 220V civil power, is connected to rectifier bridge by the step-down current-limiting circuit, and is parallel with filter regulator circuit at the rectifier bridge two ends, by the voltage trimming circuit of corresponding different output power, voltage is applied to the light emitting diode group.Preferably, this step-down current-limiting circuit realizes that by the RC loop filter regulator circuit realizes by the RC loop that also voltage trimming circuit adopts resistance to realize.
In the real work, after inserting the 220V civil power, the step-down current-limiting circuit drops to light source required voltage value with the 220V alternating current, simultaneously with waveform shaping, and the filtering higher hamonic wave.
Rectifier bridge is generally single-phase bridge, and is stable in order to guarantee circuit, adopts withstand voltage higher usually, and operating current has the commutation diode of surplus more than 20 times.
After the filter regulator circuit rectification, filter action in conjunction with the step-down current-limiting circuit, make that the current waveform that outputs to light-emitting component is more stable, guarantee the variation of the frequency, harmonic content and the voltage magnitude that allow when electric current to light-emitting component output has normal power supply simultaneously, reduced the energy loss that noise waveform produces, thereby effectively reduce the element heating amount, significantly improved luminous efficiency, and the electric current of reference waveform input has prolonged the service life of light-emitting component.
When unlatching or deenergization, electric capacity in step-down current-limiting circuit and the filter regulator circuit and resistance form backfeed loop, thereby make light-emitting component light rapidly and extinguish, by regulating feedback factor, can make the reaction time be reduced to millisecond (ms) magnitude, improve reaction speed greatly.
The specific embodiment of the present utility model only is used to make things convenient for those skilled in the art to understand the utility model, and should not be construed as the restriction to the utility model protection domain.Under the situation that does not break away from the utility model purport, distortion that those skilled in the art did and replacement also should be included in the protection domain of the present utility model.
Claims (5)
1. a LED illumination bulb comprises lamp holder (1), with the close-connected lamp housing of lamp holder (1) (2); Printed circuit board (PCB) (3) is stuck in lamp housing (2) inner chamber; Printed circuit board (PCB) (3) is provided with the drive circuit (6) of light emitting diode (4) towards the one side of lamp holder (1), the pin figure of another side distribution light emitting diode (4), lampshade (5) covers on the lamp housing (2), it is characterized in that: with lamp holder (1) axis is the axle center, according to equidistant donut evenly distributed light emitting diode (4) on the pin figure of described printed circuit board (PCB) (3), and each light emitting diode (4) is with respect to the axis slight inclination of lamp holder (1), and the inclination angle is identical; The drive circuit (6) of described light emitting diode (4) comprises external power supply, this external power supply is connected to rectifier bridge by the step-down current-limiting circuit, and the two ends at rectifier bridge are parallel with filter regulator circuit, by the voltage trimming circuit of corresponding different output power, voltage is applied to the light emitting diode group.
2. LED illumination bulb according to claim 1 is characterized in that: each light emitting diode (4) is 0 °-5 ° with respect to the inclination angle scope of the axis of lamp holder (1).
3. LED illumination bulb according to claim 1 and 2 is characterized in that: lamp housing is distributed with a plurality of apertures on (2).
4. LED illumination bulb according to claim 3 is characterized in that: between printed circuit board (PCB) (3) and the lamp holder (1) enough space heat eliminations are arranged.
5. LED illumination bulb according to claim 1, it is characterized in that: the step-down current-limiting circuit realizes by the RC loop, filter regulator circuit realizes that by the RC loop voltage trimming circuit realizes that by resistance rectifier bridge is the commutation diode that operating current has surplus more than 20 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786207U CN201145225Y (en) | 2008-01-18 | 2008-01-18 | Small power LED illuminating bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786207U CN201145225Y (en) | 2008-01-18 | 2008-01-18 | Small power LED illuminating bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145225Y true CN201145225Y (en) | 2008-11-05 |
Family
ID=40082105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200786207U Expired - Fee Related CN201145225Y (en) | 2008-01-18 | 2008-01-18 | Small power LED illuminating bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145225Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297373A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | Outdoor illuminating device |
| CN102300368A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | Light source drive circuit and workshop lamp comprising same |
| CN102300371A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | Light source driving circuit and long tube lamp comprising same |
| CN102300369A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | indoor lighting device |
| CN102300370A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | Light source driving circuit and ceiling-mounted lamp containing light source driving circuit |
| WO2012002846A2 (en) * | 2010-06-28 | 2012-01-05 | Voroshilov Igor Valerievich | Light emitting diode lamp (embodiments) |
| CN103133902A (en) * | 2011-11-30 | 2013-06-05 | 上海唯源光电科技有限公司 | Round lighting board used for light-emitting diode (LED) lamp |
-
2008
- 2008-01-18 CN CNU2008200786207U patent/CN201145225Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012002846A2 (en) * | 2010-06-28 | 2012-01-05 | Voroshilov Igor Valerievich | Light emitting diode lamp (embodiments) |
| WO2012002846A3 (en) * | 2010-06-28 | 2012-02-23 | Voroshilov Igor Valerievich | Light emitting diode lamp (embodiments) |
| CN102297373A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | Outdoor illuminating device |
| CN102300368A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | Light source drive circuit and workshop lamp comprising same |
| CN102300371A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | Light source driving circuit and long tube lamp comprising same |
| CN102300369A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | indoor lighting device |
| CN102300370A (en) * | 2011-08-02 | 2011-12-28 | 李光男 | Light source driving circuit and ceiling-mounted lamp containing light source driving circuit |
| CN103133902A (en) * | 2011-11-30 | 2013-06-05 | 上海唯源光电科技有限公司 | Round lighting board used for light-emitting diode (LED) lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIN HAIYUE Free format text: FORMER OWNER: LI GUANGNAN Effective date: 20090522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090522 Address after: Beijing Zizhuyuan Road 128 No. 1 No. 152, zip code: 100097 Patentee after: Jin Haiyue Address before: Beijing Zizhuyuan Road 128 No. 1 No. 152, zip code: 100097 Patentee before: Li Guangnan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20130118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |