CN201302133Y - Light source component of LED street lamp - Google Patents
Light source component of LED street lamp Download PDFInfo
- Publication number
- CN201302133Y CN201302133Y CNU2008201474664U CN200820147466U CN201302133Y CN 201302133 Y CN201302133 Y CN 201302133Y CN U2008201474664 U CNU2008201474664 U CN U2008201474664U CN 200820147466 U CN200820147466 U CN 200820147466U CN 201302133 Y CN201302133 Y CN 201302133Y
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- led street
- light source
- street lamp
- substrate
- lamp light
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses a light source component of an LED street lamp, and the light source component comprises at least one LED street lamp light source and connectors sleeved at two ends of the LED street lamp light source respectively; the LED street lamp light source comprises at least one base plate, and supplies power and illuminates through a power supply; the light source component of the LED street lamp further comprises a light sensor arranged near the base plate, the light sensor inducts the reduction of signals of output light intensity of the LED street lamp light source and controls the output power of the LED street lamp light source according to the signals of light intensity, so as to maintain the output signals of light intensity of the LED street lamp light source. Therefore, the utility model can ensure light intensity of the LED street lamp in the use process and can widely popularize the LED street lamp.
Description
Technical Field
The utility model relates to the field of lighting technology, especially, relate to a LED street lamp light source subassembly.
Background
Street lamps are known as one of the important fields of application of lamp technology. With the continuous development of science and technology, street lamp products are also continuously showing up new: from incandescent lamps to mercury lamps to metal halide lamps to sodium lamps (high voltage, low voltage) to the present LED (Light Emitting Diode) semiconductor lamps. The LED street lamp has the advantages of long service life, energy saving, environmental protection, etc., and thus is more and more favored by people.
The LED street lamp generally comprises an LED street lamp light source, a heat sink, a reflector, and a lamp holder. The conventional LED street lamp adopts a flat-type light distribution, and the LED street lamp light source is a flat-type LED street lamp light source, that is, a plurality of LEDs are soldered on a flat-type substrate, such as a flat-type PCB (printed circuit board). The flat plate type LED street lamp light source can be composed of a plurality of light sources
The LED street lamp comprises a 5mm low-power LED, or a flat plate type LED street lamp light source comprises a plurality of high-power LEDs of 1W, 3W or 5W and the like, or a flat plate type LED street lamp light source comprises a plurality of high-power LEDs of 10W, 20W and the like, and the flat plate type LED street lamp light source, a radiator, a reflector and a lamp holder can be of an integrated structure. The LED street light source generally includes a substrate and a light transmissive tube. The chip and the fluorescent powder of the LED street lamp have certain light attenuation from the physical property. However, the current manufacturers of LED street lamps do not consider how to compensate for the defect from the application system, so that after the LED street lamps work for a period of time, the intensity of light emitted by the LED street lamps is reduced, which inevitably causes inconvenience in use for people and affects the popularization of the LED street lamps in the market.
In addition, because the LED for illumination belongs to a power type semiconductor device, a lot of heat is emitted when the LED for illumination works, the heat needs to be timely emitted to the air, otherwise, the temperature of the LED rises, the brightness can be quickly attenuated, even the LED is damaged, and the service life of the light source of the LED street lamp is shortened. Therefore, the LED street lamp generally adopts a heat dissipation structure, usually an aluminum substrate and an aluminum profile heat sink are adopted, and natural heat dissipation, air-cooled heat dissipation or heat pipe heat dissipation is additionally adopted, and a semiconductor cooling fin is also adopted for heat dissipation. If the fan is used for heat dissipation, the substrate of the LED street lamp is close to the light-transmitting tube body, wind is difficult to blow into the LED street lamp, and the temperature of the light source of the LED street lamp cannot be reduced. In addition, the wiring of the substrate of the LED street lamp light source does not consider the problem of heat dissipation. Therefore, the LED street lamp is easily damaged in a high temperature environment generated when the LED street lamp operates.
In summary, the conventional LED street lamp light source assembly has inconvenience and defects in practical use, so it is necessary to improve the conventional LED street lamp light source assembly.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect, an object of the utility model is to provide a LED street lamp light source subassembly, this subassembly can adjust the output size of the power of LED street lamp light source in the decay process of LED street lamp light source to maintain the luminous intensity of LED street lamp light source.
In order to achieve the above object, the utility model provides a LED street lamp light source subassembly includes LED street lamp light source at least and locates with the cover respectively the joint at LED street lamp light source both ends, LED street lamp light source includes a base plate at least, and LED street lamp light source is luminous through mains operated, LED street lamp light source subassembly still including set up in near the base plate the light sensor, the light sensor response the decay of the luminous intensity signal of LED street lamp light source output, and according to luminous intensity signal control the power size of the power output of LED street lamp light source, in order to maintain the luminous intensity signal of LED street lamp light source output.
According to the utility model discloses a LED street lamp light source subassembly, LED street lamp light source overcoat has an at least light transmissivity body, two joints of LED street lamp light source overlap respectively and establish the both ends of light transmissivity body, just the light transmissivity body with the base plate separates through a plurality of connecting pieces.
According to the utility model discloses a LED street lamp light source subassembly, LED street lamp light source subassembly is installed on a lamp body, including an at least reflector in the lamp body, the both ends of reflector seted up with two connect two corresponding at least mounting holes in LED street lamp light source, with incite somebody to action LED street lamp light source subassembly is installed in the reflector of lamp body.
According to the LED street lamp light source assembly of the present invention, the light sensor is disposed between the light transmissive tube and the substrate; or the optical sensor is arranged on the back surface of the substrate; or the light sensor is arranged on the inner side of the reflector of the lamp shell.
According to the utility model discloses a LED street lamp light source subassembly, the outer end or the inner of the joint of an at least LED street lamp light source is provided with a fastener, and this fastener joint has an at least fan or air pump.
According to the LED street lamp light source assembly of the utility model, the wires and the radiating fins in the PCB connecting circuit on the substrate of the LED street lamp light source are integrated into a whole; or,
and the conducting wires and the radiating fins in the PCB connecting circuit on the substrate of the LED street lamp light source are separately arranged.
According to the utility model discloses a LED street lamp light source subassembly, be provided with a plurality of via holes on the base plate of LED street lamp light source; and/or
And the surface of the substrate of the LED street lamp light source is plated with metal.
According to the LED street lamp light source assembly of the utility model, the chip on the substrate is electrically connected to the substrate in a die bonding and wire bonding packaging mode; or,
the chip on the substrate is electrically connected on the substrate in a welding mode of a patch or a plug-in unit.
According to the utility model discloses a LED street lamp light source subassembly, light sensor is photo resistance, photodiode, phototriode or photocell.
According to the LED street lamp light source component of the utility model, the board of the substrate is a PCB board, a flexible PCB board, an aluminum substrate, a copper substrate or an iron substrate; and/or
The connector of the LED street lamp light source is made of plastic, metal, wood, bamboo or paper; and/or
The material of the light-transmitting tube body is common glass, quartz glass, organic glass or PVC; and/or
The connecting piece is a pin, and the pin is made of plastic, metal, wood, bamboo or paper.
The utility model discloses an at the decay in-process of LED street lamp light source, utilize the light sensor response of the base plate that is close to LED street lamp light source the decay of the luminous intensity signal of LED street lamp light source to control the output size of the power of LED street lamp light source, in order to maintain the luminous intensity that the LED street lamp light source sent. Therefore, the intensity of light of the LED street lamp in the using process can be ensured, and the LED street lamp can be popularized more widely. In addition, the utility model also optimizes the distance between the substrate of the LED street lamp light source and the light transmission tube body; the electric conduction and heat dissipation of the wiring of the substrate and the clamping connection of the fan/air pump and the light-transmitting tube body improve the heat dissipation of the LED street lamp and prolong the service life of the LED street lamp.
Drawings
Fig. 1 is a schematic view of an appearance structure of a light source assembly of an LED street lamp provided by the present invention;
fig. 2 is a schematic view of an internal structure of a light source assembly of an LED street lamp provided by the present invention;
fig. 3 is a schematic diagram of the LED street lamp light source assembly provided by the present invention for controlling the attenuation of the luminous intensity;
fig. 4 is a schematic view of an internal structure of a light source assembly of an LED street lamp according to a preferred embodiment of the present invention;
fig. 5A is a schematic structural diagram of a reflector of a light source assembly of an LED street lamp according to a preferred embodiment of the present invention;
fig. 5B is a schematic structural view illustrating the LED street light source assembly according to the preferred embodiment of the present invention installed in the reflector;
fig. 6 is a schematic structural view illustrating an LED street lamp light source assembly according to a preferred embodiment of the present invention installed in a reflector;
fig. 7 is a schematic structural diagram of the LED street lamp light source assembly provided by the preferred embodiment of the present invention installed on the housing of the LED street lamp.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The idea of the utility model is that: in the attenuation process of the LED street lamp light source, the light sensor close to the substrate of the LED street lamp light source is used for sensing the attenuation of the light intensity signal of the LED street lamp light source and controlling the output magnitude of the power supply power of the LED street lamp light source so as to maintain the light intensity emitted by the LED street lamp light source.
As shown in fig. 1, fig. 2 and fig. 4, the utility model provides a LED street lamp light source assembly 1 includes LED street lamp light source 11 at least and overlaps respectively and locate the joint 12 at 11 both ends of LED street lamp light source, and LED street lamp light source 11 includes a base plate 111 at least to LED street lamp light source 11 is luminous through a mains operated. The LED street lamp light source assembly 1 further includes an optical sensor 13 disposed near the substrate 111, where the optical sensor 13 senses attenuation of a light intensity signal output by the LED street lamp light source 11, and controls an output of power of the LED street lamp light source 11 according to the light intensity signal, generally increasing a current value, so as to maintain the light intensity output by the LED street lamp light source 11.
The light output intensity of the LED street light source 11 varies as a function of the forward power, and as the power supply power increases, the output intensity of the LED street light source 11 increases. When the power is reduced, the LED street light source 11 output intensity is reduced. Therefore, the utility model discloses in set up photo sensor 13 through near LED street lamp light source 11, can be at LED street lamp light source subassembly 1 during operation, judge whether LED street lamp light source 11 is taking place the decay according to the size of the luminous intensity that this LED street lamp light source subassembly 1 sent, if then adjust the power output of the power of LED street lamp light source 11, the output of increase power, then the luminous intensity of LED street lamp light source 11 will improve. Fig. 3 is a schematic diagram of the LED street lamp light source assembly according to the present invention. The LED street lamp light source component 1 is powered by a power supply with external power supply, the LED street lamp light source component 1 emits illumination light outwards, the light sensor 13 receives backlight of the LED street lamp light source component 1, the light sensor 13 receives a light intensity change signal of the backlight and transmits the light intensity change signal to the power supply, and then the power supply is controlled to adjust output power, so that relatively constant light output is generated. As the LED light output intensity decreases, the increased power supply power compensates for the light output variations. The optical sensor 13 of the present invention may include a photo resistor, a photo diode, a photo transistor, or a photo cell.
As shown in fig. 4, in a preferred embodiment of the present invention, the LED street lamp light source assembly 1 further includes at least one light-transmitting tube 14, at least one light-transmitting tube 14 is sleeved outside the LED street lamp light source 11, and two connectors 12 of the LED street lamp light source 11 are respectively sleeved at two ends of the light-transmitting tube 14. The substrate 111 and the light-transmitting tube 14 are separated by a plurality of connectors 15, and in this embodiment, the connectors 15 are preferably plastic pins, but the connectors 15 may also be screws or the like. The optical sensor 13 is provided between the light transmissive tube 14 and the substrate 111; or the optical sensor 13 is provided on the back surface of the substrate 111.
The light-transmissive tube 14 of the LED street light source assembly 1 is sleeved outside the LED street light source 11, and the distance between the light-transmissive tube 14 and the substrate 111 is generally small, so that heat dissipation is inconvenient. And the utility model discloses beat a plurality of plastic pin 15 around base plate 111 at whole base plate 111, then just separated between base plate 111 and the light transmissivity body 14, except that can be convenient put into light sensor 13, the air can circulate into simultaneously. The number of plastic pins 15 is preferably 10 to 20. The utility model discloses well plastic pin 15 can also be replaced by metal pin, timber pin, bamboo timber pin or paper material pin etc.. Here, the photosensor 13 may preferably be provided between the light-transmissive tube 14 and the substrate 111; or the optical sensor 13 is disposed on the back surface of the substrate 111 or the like at a position close to the substrate 111.
As shown in fig. 5A, in a preferred embodiment of the present invention, the LED street lamp light source assembly 1 is installed on a lamp housing 16, the lamp housing 16 includes at least one reflector 161 therein, and at least two mounting holes 1611 corresponding to two joints 12 of the LED street lamp light source 11 are opened at two ends of the reflector 161, so as to install the LED street lamp light source assembly 1 in the reflector 161 of the lamp housing 16. The size of the aperture on the reflector 161 is not limited, as long as the two connectors 12 of the LED street light source 11 can pass through. As shown in fig. 5B, the LED street light source assembly 1 is mounted in the reflector 161 of the lamp housing 16 of the LED street light source assembly 1 by two joints 12, and the photo sensor 13 may be mounted inside the reflector 161. In the present invention, the material of the two joints 12 includes: plastic, metal, wood, bamboo, or paper, etc. The reflector 161 reflects light emitted from the substrate 111 outward, so that the light intensity inside the reflector 161 can reflect whether the light emitted from the substrate 111 is attenuated or not. The light sensor 13 is arranged inside the reflector 161, so that the change of the light intensity of the LED street lamp light source 11 can be effectively monitored. Fig. 7 is a schematic structural view illustrating an LED street lamp light source assembly according to a preferred embodiment of the present invention installed on an LED street lamp housing.
As shown in fig. 6, a clip member 17 is disposed at an outer end or an inner end of the connector 12 of the at least one LED street lamp light source 11, and the clip member 17 is clipped with a fan/air pump 18. The fans/air pumps 18 of the LED street lamp light source 11 are installed at the outer ends or the inner ends of the two connectors 12, which means that the fans/air pumps 18 can be installed in the light pipe body 14 or at the inner/outer sides of the connectors 12, and the number of the fans/air pumps 18 of the LED street lamp light source 11 is one or more. Preferably, the outer ends of the joints 12 at both ends of the translucent tube 14 are provided with clips 17, and the fan/air pump 18 can be clamped to the joints 12 at both ends of the translucent tube 14 by the clips 17. Note that the clip member 17 is not shown in fig. 2 and 4.
In a preferred embodiment of the present invention, the wires and the heat sink are integrated into a whole in the PCB connecting circuit on the substrate 111 of the LED street light source 11, so that the PCB connecting circuit has the functions of the wires and the heat sink. Alternatively, the wires in the PCB connection lines on the substrate 111 of the LED street light source 11 are arranged separately from the heat sink. Preferably, for a thermoelectric separated LED, the PCB connection is both a wire and a heat sink, i.e. both a wire and a heat sink function. For the thermoelectric non-separated LED, the PCB may be formed as a large heat sink, and the wires and the heat sink are separately disposed, which facilitates the dissipation of heat generated from the substrate 111 during operation. Preferably, the substrate 111 of the LED street lamp light source 11 is provided with a plurality of via holes, and the via holes are heat dissipation holes and heat conduction holes. Further, the surface of the substrate 111 of the LED street lamp light source 11 may be plated with metal, and the plating of the surface of the PCB may prevent oxidation and enhance the heat conduction of the substrate 111.
In the above embodiments, the plate material of the substrate 111 includes a PCB, a flexible PCB, an aluminum substrate, a copper substrate, an iron substrate, or the like. The material of the light-transmitting tube body 14 is common glass, quartz glass, organic glass or PVC, etc. The surface of the translucent tube 14 may be transparent or frosted.
In other embodiments of the present invention, the chip on the substrate 111 is electrically connected to the substrate 111 by die bonding and wire bonding. Alternatively, the chip on the substrate 111 is electrically connected to the substrate 111 by a bonding method such as a die bonding or a plug bonding.
To sum up, the utility model discloses an in the decay process of LED street lamp light source, utilize the light sensor response of the base plate that is close to LED street lamp light source the decay of the luminous intensity signal of LED street lamp light source to the output size of the power of control LED street lamp light source, in order to maintain the luminous intensity that LED street lamp light source sent. Therefore, the intensity of light of the LED street lamp in the using process can be ensured, and the LED street lamp can be popularized more widely. In addition, the utility model also optimizes the distance between the substrate of the LED street lamp light source and the light transmission tube body; the electric conduction and heat dissipation of the wiring of the substrate and the clamping connection of the fan/air pump and the light-transmitting tube body improve the heat dissipation of the LED street lamp and prolong the service life of the LED street lamp.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (10)
1. The LED street lamp light source assembly is characterized by further comprising an optical sensor arranged near the base plate, wherein the optical sensor senses attenuation of a light intensity signal output by the LED street lamp light source and controls the power output by the power supply of the LED street lamp light source according to the light intensity signal so as to maintain the light intensity signal output by the LED street lamp light source.
2. The LED street light source assembly of claim 1, wherein the LED street light source is sleeved with at least one light-transmissive tube, two connectors of the LED street light source are respectively sleeved at two ends of the light-transmissive tube, and the light-transmissive tube is separated from the substrate by a plurality of connectors.
3. The LED street light source assembly of claim 2, wherein the LED street light source assembly is mounted on a lamp housing, the lamp housing including at least one reflector, two ends of the reflector being provided with at least two mounting holes corresponding to two joints of the LED street light source for mounting the LED street light source assembly in the reflector of the lamp housing.
4. The LED street light source assembly of claim 3, wherein the light sensor is disposed between the light transmissive tube and the substrate; or the optical sensor is arranged on the back surface of the substrate; or the light sensor is arranged on the inner side of the reflector of the lamp shell.
5. The LED street light source assembly of claim 1, wherein a clip is provided at an outer end or an inner end of the connector of the at least one LED street light source, and the clip is engaged with the at least one fan or the air pump.
6. The LED street light source assembly of claim 1, wherein the wires and the heat sink in the PCB connecting circuit on the substrate of the LED street light source are integrated; or,
and the conducting wires and the radiating fins in the PCB connecting circuit on the substrate of the LED street lamp light source are separately arranged.
7. The LED street light source assembly of claim 1, wherein a substrate of the LED street light source is provided with a plurality of vias; and/or
And the surface of the substrate of the LED street lamp light source is plated with metal.
8. The LED street light source module as recited in claim 1, wherein the chip on the substrate is electrically connected to the substrate by die bonding and wire bonding; or,
the chip on the substrate is electrically connected on the substrate in a welding mode of a patch or a plug-in unit.
9. The LED street light source assembly according to claim 1, wherein the light sensor is a photo resistor, a photo diode, a photo triode, or a photo cell.
10. The LED street light source assembly of claim 2, wherein the substrate is a PCB, a flexible PCB, an aluminum substrate, a copper substrate, or an iron substrate; and/or
The connector of the LED street lamp light source is made of plastic, metal, wood, bamboo or paper; and/or
The material of the light-transmitting tube body is common glass, quartz glass, organic glass or PVC; and/or
The connecting piece is a pin, and the pin is made of plastic, metal, wood, bamboo or paper.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201474664U CN201302133Y (en) | 2008-09-16 | 2008-09-16 | Light source component of LED street lamp |
| PCT/CN2009/000006 WO2010003300A1 (en) | 2008-07-10 | 2009-01-05 | Led source assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201474664U CN201302133Y (en) | 2008-09-16 | 2008-09-16 | Light source component of LED street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201302133Y true CN201302133Y (en) | 2009-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201474664U Expired - Fee Related CN201302133Y (en) | 2008-07-10 | 2008-09-16 | Light source component of LED street lamp |
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| CN (1) | CN201302133Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816940A (en) * | 2016-09-14 | 2018-03-20 | 西安航通测控技术有限责任公司 | A kind of gamut photoelectric sensor for Laser Light Plane Scanning cyberspace alignment system |
| CN110691442A (en) * | 2019-10-15 | 2020-01-14 | 奚小忠 | Intelligent LED street lamp use monitoring system based on big data |
-
2008
- 2008-09-16 CN CNU2008201474664U patent/CN201302133Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816940A (en) * | 2016-09-14 | 2018-03-20 | 西安航通测控技术有限责任公司 | A kind of gamut photoelectric sensor for Laser Light Plane Scanning cyberspace alignment system |
| CN107816940B (en) * | 2016-09-14 | 2020-01-21 | 西安航通测控技术有限责任公司 | Full-range photoelectric sensor for laser plane scanning network space positioning system |
| CN110691442A (en) * | 2019-10-15 | 2020-01-14 | 奚小忠 | Intelligent LED street lamp use monitoring system based on big data |
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