CN108006564B - LED street lamp - Google Patents

LED street lamp Download PDF

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Publication number
CN108006564B
CN108006564B CN201711217331.0A CN201711217331A CN108006564B CN 108006564 B CN108006564 B CN 108006564B CN 201711217331 A CN201711217331 A CN 201711217331A CN 108006564 B CN108006564 B CN 108006564B
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China
Prior art keywords
silica gel
lamp
hemispherical
layer
lens
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CN201711217331.0A
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CN108006564A (en
Inventor
张亮
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YANGZHOU ZHONGMEI NEW ENERGY LIGHTING Co.,Ltd.
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Yangzhou Zhongmei New Energy Lighting Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/08Lighting devices intended for fixed installation with a standard
    • F21S8/085Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/90Methods of manufacture
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/03Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
    • F21S9/035Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit being integrated within the support for the lighting unit, e.g. within or on a pole
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89Metals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10Outdoor lighting
    • F21W2131/103Outdoor lighting of streets or roads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

Abstract

The invention relates to an LED street lamp, the structure includes: the solar street lamp comprises a light source (1), a lamp body (2), a light collection module (3), a solar panel (4), a lamp post (5), an intelligent control module (6), a storage battery (7), a water delivery pipe (8) and a generator (9); wherein, lamp body (2) set up in on lamp pole (5), light emitting source (1) set up in lamp body (2) below, illumination collection module (3) set up in on lamp body (2), solar cell panel (4) set up in lamp pole (5) top, intelligent control module (6) with battery (7) set up in the lower part of lamp pole (5) pole is internal, raceway (8) set up in lamp pole (5) and with solar cell panel (4) lower extreme is connected, generator (9) set up in lamp pole (5) and with raceway (8) are connected. The LED street lamp provided by the invention has the advantages of high light-emitting rate, high luminous efficiency, good heat dissipation effect and more energy conservation.

Description

LED street lamp
Technical Field
The invention belongs to the technical field of LED luminescence, and particularly relates to an LED street lamp.
Background
With the development of the times, the modernized construction pace is continuously accelerated, the living standard of people is continuously improved, and the requirements on road lighting and brightening engineering are gradually increased. The street lamp is an important component of urban illumination, and the traditional street lamp is usually adopted, and the high-pressure sodium lamp emits light at 360 degrees, so that the defect of large light loss causes huge waste of energy. A Light Emitting Diode (LED) is a semiconductor solid state Light emitting device. It utilizes a solid semiconductor chip as a light emitting material. When a forward voltage is applied to the two ends of the semiconductor solid light-emitting device, carriers in the semiconductor are compounded to initiate photon emission to generate light. At present, the LED is adopted as a street lamp light source, and with the development of smart cities and green cities, the development prospect of the LED lamp is wider.
With the gradual development of the LED street lamp, the contradiction between the energy consumption, the heat dissipation and the light emitting brightness of the LED street lamp is a key problem limiting the development of the LED street lamp, and the heat dissipation problem seriously affects the lighting effect and the service life of the light source of the LED street lamp.
Therefore, with the development of smart cities and green cities, it becomes more and more important to provide an efficient and energy-saving LED street lamp.
Disclosure of Invention
In order to improve the working performance of the LED street lamp, the invention provides the LED street lamp; the technical problem to be solved by the invention is realized by the following technical scheme:
an embodiment of the present invention provides an LED street lamp, including: the intelligent solar lamp comprises a light source 1, a lamp body 2, a light collection module 3, a solar cell panel 4, a lamp post 5, an intelligent control module 6, a storage battery 7, a water delivery pipe 8 and a generator 9; the lamp body 2 is arranged at a first end of the lamp post 5, the light source 1 is arranged in the lamp body 2, the illumination acquisition module 3 is arranged on the lamp body 2 and/or the lamp post 5, the solar panel 4 is arranged at a second end of the lamp post 5, the intelligent control module 6, the storage battery 7, the water pipe 8 and the generator 9 are all arranged in the lamp post 5, and the generator 9 is connected with the water pipe 8;
the intelligent control module 6 is electrically connected with the light source 1, the illumination acquisition module 3 and the storage battery 7 respectively, and the storage battery 7 is electrically connected with the light source 1, the solar cell panel 4 and the generator 9 respectively.
In one embodiment of the present invention, the solar cell panel 4 comprises two solar cell panels forming a funnel shape, and the bottom of the funnel of the solar cell panel 4 is connected to the inlet of the water pipe 8.
In an embodiment of the present invention, a control valve 81 is disposed at an inlet of the water pipe 8, and the control valve 81 is electrically connected to the generator 9 and the intelligent control module 6, respectively.
In one embodiment of the present invention, the control valve 81 comprises a pressure sensor.
In one embodiment of the present invention, the intelligent control module 6 includes a communication unit 61, a first driving unit 62, a second driving unit 63, and a control unit 64; the first driving unit 62 is electrically connected to the light source 1, the second driving unit 63 is electrically connected to the control valve 81 and the generator 9, and the control unit 64 is electrically connected to the illumination collecting module 3, the communication unit 61, the first driving unit 62, the second driving unit 63, and the battery 7, respectively.
In one embodiment of the present invention, the communication unit 61 includes a unique ID identification or a unique communication address of the LED street lamp.
In an embodiment of the present invention, the LED street lamp further includes an infrared sensor 10 disposed on the lamp post 5, and the infrared sensor 10 is electrically connected to the control unit 64.
In one embodiment of the present invention, one or more LED lamps 11 are disposed on the light emitting source 1.
In one embodiment of the present invention, the LED lamp 11 includes: the LED lamp comprises a heat dissipation substrate 101, a blue light lamp wick, a first hemispherical silica gel lens 102, lower silica gel 103, a second hemispherical silica gel lens 104 and upper silica gel 105; the blue light lamp wick is arranged on the upper surface of the heat dissipation substrate 101, the first hemispherical silica gel lenses 102 are arranged on the blue light lamp wick and the upper surface of the heat dissipation substrate 101 at intervals, the lower layer silica gel 103 is arranged on the blue light lamp wick and the upper surface of the first hemispherical silica gel lenses 102, and the second hemispherical silica gel lenses 104 are arranged on the upper surface of the lower layer silica gel 103 at intervals; the upper layer of silica gel 105 is disposed on the upper surfaces of the lower layer of silica gel 103 and the second hemispherical silica gel lens 104.
In one embodiment of the present invention, the refractive index of the first hemispherical silica gel lens 102 is greater than the refractive index of the lower silica gel 103; the refractive index of the second hemispherical silica gel lens 104 is greater than the refractive index of the upper layer silica gel 105 and the refractive index of the lower layer silica gel 103.
Compared with the prior art, the invention has the following beneficial effects:
1. the LED street lamp provided by the invention combines solar power generation and hydroelectric power generation, and can provide more reliable and green energy for the street lamp in a complex weather environment.
2. The LED street lamp provided by the invention can better transmit the light of the LED light source, and the luminous efficiency of the LED street lamp is improved; particularly, when green energy such as solar energy is applied, the LED street lamp provided by the invention can provide higher brightness with less energy consumption, and the energy consumption and the heat dissipation capacity of the street lamp are reduced under the condition that the brightness provided by the existing street lamp is not changed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Other aspects and features of the present invention will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention, for which reference should be made to the appended claims. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
Fig. 1 is a schematic structural diagram of an LED street lamp according to an embodiment of the present invention;
fig. 2 is a schematic view of a working principle of an LED street lamp according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a light source according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an LED lamp according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a heat dissipation substrate according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a blue light wick according to an embodiment of the present invention;
FIG. 7a is a schematic cross-sectional view of a hemispherical silica gel lens according to an embodiment of the invention;
FIG. 7b is a schematic cross-sectional view of another hemispherical silica gel lens according to an embodiment of the invention;
fig. 8 is a schematic flow chart of a method for manufacturing an LED lamp according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of an LED street lamp according to an embodiment of the present invention, including: the intelligent solar lamp comprises a light source 1, a lamp body 2, a light collection module 3, a solar cell panel 4, a lamp post 5, an intelligent control module 6, a storage battery 7, a water delivery pipe 8 and a generator 9; the solar street lamp comprises a lamp body 2, a light source 1, a lighting acquisition module 3, a solar panel 4, a storage battery 7, a water pipe 8 and a generator 9, wherein the lamp body 2 is arranged at a first end of a lamp post 5, the light source 1 is arranged in the lamp body 2, the lighting acquisition module 3 is arranged on the lamp body 2 and/or the lamp post 5, the solar panel 4 is arranged at a second end of the lamp post 5, the intelligent control module 6, the storage battery 7, the water pipe 8 and the generator 9 are arranged in the lamp post 5, and the generator 9 is connected.
Specifically, the intelligent control module 6 is electrically connected to the light source 1, the illumination collection module 3, and the storage battery 7 is electrically connected to the light source 1, the solar cell panel 4, and the generator 9.
Specifically, the solar cell panel 4 includes two solar cell panels forming a funnel shape, the bottom of which is open.
The solar panel is in a funnel shape with an opening at the bottom, so that the angle for collecting illumination is increased while rainwater can be effectively collected, and the solar panel can receive illumination to the maximum degree no matter sunrise, sunset or noon. According to different weather environments, rainwater flows through the generator to generate electric energy or solar energy to generate electric energy, solar power generation and hydroelectric power generation are combined, energy can be provided for the street lamp in a complex weather environment, and the street lamp is more energy-saving and environment-friendly.
Further, a control valve 81 is arranged at the inlet of the water pipe 8, and a one-way valve 82 is arranged at the outlet of the water pipe 8; the control valve 81 is disposed at the bottom of the solar cell panel 4 and connected to the inlet of the water pipe 8.
Further, the control valve 81 is electrically connected with the generator 9 and the intelligent control module 6 respectively
In particular, the control valve 81 comprises a pressure sensor;
wherein, the inlet of the water conveying pipe 8 is connected with the opening of the funnel-shaped bottom of the solar panel 4; in rainy days, when rainwater is gathered to a certain amount, the pressure sensor controls the valve to be opened or the intelligent control module 6 controls the valve to be opened, the rainwater can directly enter the water conveying pipe 8 through the funnel to drive the generator 9 to generate power, the electric energy is stored in the storage battery 7, and the rainwater can drive the generator 9 to generate power and then can be discharged into a sewer through the check valve 82 at the outlet of the water conveying pipe 8; meanwhile, the one-way valve 82 at the outlet of the water conveying pipe 8 can prevent the sewer water flow from flowing back to the street lamp.
Preferably, the intelligent control module 6 includes a communication unit 61, a first driving unit 62, a second driving unit 63 and a control unit 64; the first driving unit 62 is electrically connected to the light source 1, the second driving unit 63 is electrically connected to the control valve 81 and the generator 9, and the control unit 64 is electrically connected to the illumination collecting module 3, the communication unit 61, the first driving unit 62, the second driving unit 63, and the battery 7, respectively.
Further, the LED street lamp further includes an infrared sensor 10 disposed on the lamp post 5; wherein, the infrared sensor 10 is electrically connected with the control unit 64 of the intelligent control module 6.
The infrared sensor 10 can collect information of passing pedestrians, and the street lamp is controlled to be turned on or turned off or partially turned off according to the collected information.
Referring to fig. 2, fig. 2 is a schematic view of a working principle of an LED street lamp according to an embodiment of the present invention, in which an illumination collection module 3 and an infrared sensor 10 feed back external illumination intensity to a control unit 64, the control unit 64 generates an internal control instruction according to the external illumination intensity, and a first driving unit 62 drives the LED lamp to emit light or partially emit light according to the internal control instruction; the communication unit 61 is configured to receive an external control instruction and send the external control instruction to the control unit 64, the control unit 64 sends the external control instruction to the first driving unit 62, and the first driving unit 62 drives the LED lamp in the light emitting source to emit light or emit part of light according to the external control instruction. The above-mentioned
Specifically, the external control instruction is a control instruction which is actively sent to the street lamp by a remote or external access device.
Further, the communication unit 61 includes a unique ID identifier or a unique communication address of the LED street lamp; and the accurate control of each street lamp can be realized according to the ID or the communication address of each street lamp.
The illumination acquisition module 3 and the infrared sensor 10 can more intelligently control the LED street lamp to emit light or partially emit light or not emit light; electric energy is more reasonably distributed; the energy-saving effect is realized; meanwhile, the LED street lamp can be controlled to emit light or emit part of light or not through remote communication, so that the LED street lamp is more intelligent.
Specifically, referring to fig. 3, fig. 3 is a schematic structural diagram of a light source according to an embodiment of the present invention, where one or more high-transmittance LED lamps 11 are disposed on the light source 1; the LED lamp 1 is a high-power LED lamp.
The LED street lamp provided by the embodiment adopts a high-efficiency luminous source and intelligent control; the luminous efficiency of the LED street lamp is improved; compared with the existing street lamp, the street lamp has the advantages that the energy consumption and the heat dissipation capacity of the street lamp are reduced under the condition that the provided brightness is not changed.
Example two
This embodiment describes in detail the structure of the LED lamp 11 of the present invention on the basis of the above-described embodiments, as follows.
In the above embodiments, the LED lamp may select a part of the LED lamps to be turned on and off according to the illumination intensity of the external environment or an external control signal, and in order to provide a sufficient illumination intensity when the part of the LED lamps is turned off, an LED lamp with higher light emitting efficiency needs to be provided.
Specifically, referring to fig. 4, fig. 4 is a schematic structural diagram of an LED lamp according to an embodiment of the present invention, where the LED lamp 11 includes:
a heat dissipation substrate 101;
the blue light lamp wick is arranged on the upper surface of the heat dissipation substrate 101;
the first hemispherical silica gel lenses 102 are arranged on the upper surfaces of the blue light lamp core and the heat dissipation substrate 101 at intervals;
the lower layer of silica gel 103 is arranged on the blue light lamp wick and the upper surface of the first hemispherical silica gel lens 102;
second hemispherical silica gel lenses 104 arranged on the upper surface of the lower silica gel 103 at intervals;
and an upper layer of silica gel 105 disposed on the upper surfaces of the lower layer of silica gel 103 and the second hemispherical silica gel lens 104.
Specifically, please refer to fig. 5, fig. 6, and fig. 7a to fig. 7b together, in which fig. 5 is a schematic structural diagram of a heat dissipation substrate according to an embodiment of the present invention, fig. 6 is a schematic structural diagram of a blue light wick according to an embodiment of the present invention, fig. 7a is a schematic sectional diagram of a hemispherical silica gel lens according to an embodiment of the present invention, and fig. 7b is a schematic sectional diagram of another hemispherical silica gel lens according to an embodiment of the present invention.
Preferably, as shown in fig. 5, the heat dissipation substrate 101 is made of iron, the thickness D of the heat dissipation substrate 101 is 0.5-10 mm, and a circular through hole is formed in the heat dissipation substrate 101 and located in the heat dissipation substrateCircular through holes which are arranged in the board 101 along the width direction and form a certain included angle with the plane of the heat dissipation substrate 101; wherein the number of the circular through holes is n, n is more than or equal to 2, the diameter (radius R) is 0.1-0.3 mm, and the included angle between the circular through holes and the plane of the heat dissipation substrate 101 is 1-10oAnd the distance A between the circular through holes is 0.5-10 mm.
The iron radiating substrate has the characteristics of large heat capacity, good heat conducting effect, difficulty in deformation and close contact with a radiating device, and improves the radiating effect of the LED lamp; in addition, the oblique through holes are formed in the iron radiating substrate in the LED lamp, so that the LED lamp has almost no change in strength, the manufacturing cost is reduced, channels for air circulation can be increased by means of the middle oblique through holes, heat convection among air is fully utilized, and the radiating effect of the LED lamp is improved.
Preferably, as shown in fig. 6, the blue light wick structure includes: a substrate material 201, a GaN buffer layer 202 on the substrate material 201, a GaN layer 203 on the GaN buffer layer 202, a P-type GaN quantum well wide band gap layer 204 on the GaN layer 203, an InGaN layer 205 on the P-type GaN quantum well wide band gap layer 204, a P-type GaN quantum well wide band gap layer 206 on the InGaN layer 205, an AlGaN barrier layer 207 on the P-type GaN quantum well wide band gap layer 206, a P-type GaN layer 208 on the AlGaN barrier layer 207, an anode electrode 209 on the P-type GaN layer 208, and a cathode electrode 210 on the GaN layer 203.
Furthermore, the diameter of the first hemispherical silica gel lenses 102 is 10 to 200 μm, and the distance between the first hemispherical silica gel lenses 102 is 10 to 200 μm.
Further, the diameter of the second hemispherical silica gel lenses 104 is 10 to 200 μm, and the distance between the second hemispherical silica gel lenses 104 is 10 to 200 μm.
The first hemispherical silica gel lens 102 does not contain fluorescent powder, and the lower silica gel 103 does not contain fluorescent powder and is made of high-temperature-resistant silica gel; the second hemispherical silica gel lens 104 and the upper layer silica gel 105 contain yellow fluorescent powder; through the form of separating the fluorescent powder from the LED chip in the LED lamp structure, the problem of light transmittance reduction of the silica gel caused by aging and yellowing of the silica gel under the high-temperature condition is solved; meanwhile, the content of the yellow fluorescent powder in the silica gel is changed, so that the color of light can be continuously adjusted to be changed into white light, and the color temperature of a light source can be adjusted.
Specifically, the wavelength of the yellow fluorescent powder is 570-620 nm.
Preferably, as shown in fig. 7a to 7b, the first hemispherical silicone lenses 102 and the second hemispherical silicone lenses 104 may be uniformly arranged in a rectangular or rhombic shape, and the first hemispherical silicone lenses 102 and the second hemispherical silicone lenses 104 may be aligned or staggered.
Preferably, the first hemispherical silicone lens 102 and the second hemispherical silicone lens 104 are plano-convex lenses, and the focal length f = R/(n2-n1), then the distance between the first hemispherical silicone lens 102 and the second hemispherical silicone lens 104 is 0 ≦ x ≦ 2R/(n2-n1), and for simplicity of calculation, let n be set1Is the refractive index of the lower silica gel 103, n2Is the refractive index of the first hemispherical silicone lens 102, and R is the radius of the first hemispherical silicone lens 102.
Preferably, the upper layer of silica gel 105 is hemispherical, has a thickness of 50-500 μm and a refractive index of less than or equal to 1.5, wherein the upper layer of silica gel is hemispherical, so that the light-emitting angle of the LED can be maximized.
Specifically, the refractive index of the upper layer silica gel 105 is greater than that of the lower layer silica gel 103; the refractive index of the first hemispherical silica gel lens 102 is greater than that of the lower silica gel 103; the refractive index of the second hemispherical silica gel lens 104 is greater than the refractive index of the upper layer silica gel 105 and the refractive index of the lower layer silica gel 103.
The refractive index of the upper silica gel layer is larger than that of the lower silica gel layer, the refractive index of the silica gel layer is sequentially increased from bottom to top to inhibit total reflection, emergent light of the LED is improved, and useless heat generated by absorption of the light totally reflected to the inside is reduced.
Preferably, the material of the first hemispherical silicone lens 102 may be polycarbonate, polymethylmethacrylate, glass; the material of the lower layer silica gel 103 can be modified epoxy resin and organic silicon material; the second hemispherical silicone lens 104 may be made of polycarbonate, polymethyl methacrylate, or glass; the upper layer of silicone rubber 105 can be epoxy resin, modified epoxy resin, silicone material, methyl silicone rubber, phenyl silicone rubber.
The LED lamp provided by the embodiment utilizes the characteristic that different types of silica gel have different refractive indexes, and the lens is formed in the silica gel, so that the problem of light emission dispersion of the LED lamp is solved, and light emitted by the light emitting source can be more concentrated; through the mode of arranging that changes the hemisphere silica gel lens in the LED structure, can guarantee the light of light source and distinguish evenly distributed in the concentration, very big improvement the luminous efficacy of LED lamp.
EXAMPLE III
In this embodiment, a method for manufacturing an LED lamp according to the present invention is described in detail below on the basis of the above embodiments.
Specifically, please refer to fig. 8, and fig. 8 is a schematic flow chart of a method for manufacturing an LED lamp according to an embodiment of the present invention. On the basis of the above embodiments, the present embodiment will describe the process flow of the present invention in more detail. The method comprises the following steps:
s1, preparing a heat dissipation substrate;
s11, preparing a support/heat dissipation substrate;
specifically, a heat dissipation substrate 101 with the thickness of 0.5-10 mm and made of iron is selected, and the heat dissipation substrate 101 is cut;
s12, cleaning the support/heat dissipation substrate;
specifically, stains, especially oil stains, on the radiating substrate 101 and the support are cleaned;
s13, baking the support/heat dissipation substrate;
specifically, the cleaned heat dissipation substrate 101 and the rack are baked, and the heat dissipation substrate 101 and the rack are kept dry.
Preferably, a circular through hole which is along the width direction and forms a certain included angle with the plane of the heat dissipation substrate 101 is formed inside the heat dissipation substrate 101; wherein the number of the circular through holes is n, n is more than or equal to 2, the diameter is 0.1-0.3 mm, and the included angle between the circular through holes and the plane of the radiating substrate 101 is 1-10oAnd the distance between the circular through holes is 0.5-10 mm.
Preferably, the circular through-hole in the heat dissipation substrate 101 is formed by a direct casting process or directly slotting in the width direction on the heat dissipation substrate 101.
S2, chip welding;
s21, printing solder on the blue light lamp wick;
s22, carrying out die bonding inspection on the blue light lamp wick printed with the solder;
and S23, soldering the blue light lamp wick above the heat dissipation substrate 101 by using a reflow soldering process.
S3, preparing fluorescent powder glue;
s31, preparing fluorescent powder glue;
specifically, yellow fluorescent powder is prepared and mixed in the second silica gel layer and the third silica gel layer respectively;
s32, carrying out color test on the mixed second silica gel layer and the mixed third silica gel layer;
and S33, baking the third silica gel layer qualified in the color test.
Preferably, the material of the yellow phosphor is (YGd)3(Al,Ga)5O12:Ce、(Ca,Sr,Ba)2SiO4:Eu、AESi2O2N2Eu or M- α -SiAlON, Eu, and the wavelength range of the yellow fluorescent powder is 570 nm-620 nm.
S4, preparing a first hemispherical silica gel lens 102;
s41, coating a first silica gel layer on the heat dissipation substrate 101 provided with the blue light chip, providing a first hemispherical mold on the first silica gel layer, and forming a first hemispherical silica gel having a hemispherical shape on the first silica gel layer by using the first hemispherical mold;
s42, baking the first hemispherical silica gel provided with the first hemispherical mold, wherein the baking temperature is 90-125 ℃, and the baking time is 15-60 min, so that the first hemispherical silica gel is solidified;
s43, after the baking is completed, the first hemispherical mold disposed in the first silicone rubber layer is removed, and the first hemispherical silicone rubber lens 102 is completed.
Preferably, the first hemispherical silica lens 102 does not contain phosphor;
s5, preparing the lower layer silica gel 103;
specifically, the lower layer silicone rubber 103 is coated on the first hemispherical silicone rubber lens 102, completing the preparation of the lower layer silicone rubber 103.
Preferably, the lower layer of silica gel 103 does not contain phosphor;
s6, preparing a second hemispherical silica gel lens 104;
s61, coating a second silica gel layer on the upper surface of the lower silica gel layer 103, arranging a second hemispherical mold on the second silica gel layer, and forming a second hemispherical silica gel with a hemispherical shape on the second silica gel layer by using the second hemispherical mold;
s62, baking the second hemispherical silica gel provided with the second hemispherical die at the baking temperature of 90-125 ℃ for 15-60 min to solidify the second hemispherical silica gel;
s63, after the baking is completed, the second hemispherical mold disposed in the second silicone layer is removed, and the second hemispherical silicone lens 104 is completed.
Preferably, the second hemispherical silica lens 104 contains yellow phosphor;
s7, preparing upper-layer silica gel 105;
s71, coating a third silicone gel layer on the second hemispherical silicone lens 104;
s72, arranging a third hemispherical mold on the third silica gel layer, and forming a third hemispherical silica gel with a hemispherical shape on the third silica gel layer by using the third hemispherical mold;
s73, baking the third hemispherical silica gel provided with the third hemispherical die at the baking temperature of 90-125 ℃ for 15-60 min to solidify the third hemispherical silica gel;
and S74, after baking, removing the third hemispherical mold arranged in the third silica gel layer, and finishing the preparation of the upper silica gel layer 105.
Preferably, the upper layer silica gel 105 contains yellow phosphor, and the color temperature of light can be continuously adjusted by changing the content of the yellow phosphor in the upper layer silica gel 105.
S8, long-time baking;
specifically, the heat dissipation substrate 101, the blue light lamp wick, the lower layer silica gel 103 of the first hemispherical silica gel lens 102, the second hemispherical silica gel lens 104 and the upper layer silica gel 105 are integrally baked, the baking temperature is 100-150 ℃, the baking time is 4-12 hours, and the LED packaging is completed;
and S9, testing and sorting the packaged LED lamps.
And S10, packaging the LED lamp which is qualified in the test.
According to the method of the embodiment, the LED lamp having the multi-layered hemispherical silica gel lens can be prepared, and the LED lamp having the multi-layered hemispherical silica gel lens prepared by the preparation method of the present invention should not be understood as a new invention.
Example four
On the basis of the above embodiments, this embodiment will describe in detail the LED lamp with a multi-layer hemispherical silicone lens, and the LED lamp includes:
a heat-dissipating substrate;
the blue light chip is formed on the upper surface of the heat dissipation substrate;
the first hemispherical silica gel lens is formed on the upper surfaces of the heat dissipation substrate and the blue light chip;
the first layer of silica gel is formed on the upper surfaces of the first hemispherical silica gel lens and the blue light chip;
the Nth hemispherical silica gel lens is formed on the upper surface of the Nth-1 layer of silica gel;
wherein N is more than or equal to 2, the diameter of the Nth hemispherical silica gel lens is 10-200 μm, the distance between the Nth hemispherical silica gel lenses is 10-200 μm, the Nth hemispherical silica gel lens does not contain fluorescent powder, and the refractive index of the Nth hemispherical silica gel lens is greater than that of the Nth layer of silica gel.
The Nth layer of silica gel is formed on the upper surfaces of the Nth-1 layer of silica gel and the Nth hemispherical silica gel lens;
the Nth layer of silica gel does not contain fluorescent powder and is made of high-temperature-resistant materials.
Preferably, the material of the nth layer of silica gel can be modified epoxy resin or organosilicon material.
The (N + 1) th hemispherical silica gel lens is formed on the upper surface of the Nth layer of silica gel;
the diameter of the (N + 1) th hemispherical silica gel lens is 10-200 mu m, the distance between the (N + 1) th hemispherical silica gel lenses is 10-200 mu m, the (N + 1) th hemispherical silica gel lens 104 contains yellow fluorescent powder, and the refractive index of the (N + 1) th hemispherical silica gel lens is greater than that of the (N + 1) th layer of silica gel.
Preferably, the material of the N +1 th hemispherical silicone lens may be polycarbonate, polymethylmethacrylate, glass.
Preferably, the first to (N + 1) th hemispherical silicone lenses may be uniformly arranged in a rectangular or rhombic shape, and the first to (N + 1) th hemispherical silicone lenses may be aligned or staggered.
Preferably, the N-1 st and N-th hemispherical silicone lenses are plano-convex lenses, and the focal length f = R/(N2-N1), then the distance between the N-1 st and N-th hemispherical silicone lenses is 0 ≦ x ≦ 2R/(N2-N1), and for simplicity of calculation, let N be set1Is the refractive index of the silica gel of the N-1 th layer, N2Is the refractive index of the (N-1) th hemispherical silica gel lens, and R is the radius of the (N-1) th hemispherical silica gel lens.
The (N + 1) th layer of silica gel is formed on the upper surfaces of the (N + 1) th hemispherical silica gel lens and the Nth layer of silica gel;
the thickness of the (N + 1) th layer of silica gel is 50-500 mu m, the refractive index is less than or equal to 1.5, the (N + 1) th layer of silica gel contains yellow fluorescent powder, and the refractive index of the (N + 1) th layer of silica gel is greater than that of the (N) th layer of silica gel.
Preferably, the material of the (N + 1) th layer of silicone rubber can be epoxy resin, modified epoxy resin, silicone material, methyl silicone rubber and phenyl silicone rubber.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (7)

1. An LED street lamp, comprising: the solar street lamp comprises a light source (1), a lamp body (2), a light collection module (3), a solar panel (4), a lamp post (5), an intelligent control module (6), a storage battery (7), a water delivery pipe (8) and a generator (9); the lamp body (2) is arranged at a first end of the lamp post (5), the light emitting source (1) is arranged in the lamp body (2), the illumination acquisition module (3) is arranged on the lamp body (2) and/or the lamp post (5), the solar cell panel (4) is arranged at a second end of the lamp post (5), the intelligent control module (6), the storage battery (7), the water pipe (8) and the generator (9) are arranged in the lamp post (5), and the generator (9) is connected with the water pipe (8);
the intelligent control module (6) is electrically connected with the light source (1), the illumination acquisition module (3) and the storage battery (7) respectively, and the storage battery (7) is electrically connected with the light source (1), the solar panel (4) and the generator (9) respectively;
one or more LED lamps (11) are arranged on the luminous source (1); the LED lamp (11) comprises: the LED lamp comprises a heat dissipation substrate (101), a blue light lamp wick, a first hemispherical silica gel lens (102), lower silica gel (103), a second hemispherical silica gel lens (104) and upper silica gel (105); the blue light lamp wick is arranged on the upper surface of the heat dissipation substrate (101), the first hemispherical silica gel lenses (102) are arranged on the blue light lamp wick and the upper surface of the heat dissipation substrate (101) at intervals, the lower layer silica gel (103) is arranged on the blue light lamp wick and the upper surface of the first hemispherical silica gel lenses (102), and the second hemispherical silica gel lenses (104) are arranged on the upper surface of the lower layer silica gel (103) at intervals; the upper layer silica gel (105) is arranged on the upper surfaces of the lower layer silica gel (103) and the second hemispherical silica gel lens (104);
the refractive index of the first hemispherical silica gel lens (102) is greater than that of the lower silica gel (103); the refractive index of the second hemispherical silica gel lens (104) is greater than the refractive index of the upper layer silica gel (105) and the refractive index of the lower layer silica gel (103);
the first hemispherical silica gel lens (102) and the second hemispherical silica gel lens (104) are plano-convex lenses, and the focal length f = R/(n2-n 1); the first hemispherical silica gelThe distance x between the lens (102) and the second hemispherical silica gel lens (104) is more than or equal to 0 and less than or equal to 2R/(n2-n 1); wherein n is1Is the refractive index of the lower silica gel layer (103), n2Is the refractive index of the first hemispherical silica gel lens (102), and R is the radius of the first hemispherical silica gel lens (102).
2. The LED street light according to claim 1, characterized in that the solar panel (4) comprises two solar panels forming a funnel shape, and the funnel bottom of the solar panel (4) is connected with the inlet of the water duct (8).
3. The LED street lamp according to claim 2, characterized in that a control valve (81) is arranged at the inlet of the water pipe (8), and the control valve (81) is electrically connected with the generator (9) and the intelligent control module (6) respectively.
4. The LED street light according to claim 3, characterized in that the control valve (81) comprises a pressure sensor.
5. The LED street light according to claim 4, characterized in that the intelligent control module (6) comprises a communication unit (61), a first driving unit (62), a second driving unit (63) and a control unit (64); the first driving unit (62) is electrically connected with the light emitting source (1), the second driving unit (63) is electrically connected with the control valve (81) and the generator (9), and the control unit (64) is electrically connected with the illumination acquisition module (3), the communication unit (61), the first driving unit (62), the second driving unit (63) and the storage battery (7) respectively.
6. LED street lamp according to claim 5, characterized in that the communication unit (61) comprises a unique ID identification or a unique communication address of the LED street lamp.
7. The LED street lamp according to claim 5, characterized in that the LED street lamp further comprises an infrared sensor (10) arranged on the lamp post (5), wherein the infrared sensor (10) is electrically connected with the control unit (64).
CN201711217331.0A 2017-11-28 2017-11-28 LED street lamp Active CN108006564B (en)

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CN102270629A (en) * 2010-06-01 2011-12-07 Lg伊诺特有限公司 Light emitting device package and lighting system
CN203147598U (en) * 2013-03-14 2013-08-21 山东中鸿新能源科技有限公司 Energy-saving lighting system with wind power generation device, solar power generation device and rainfall power generation device
CN203703793U (en) * 2013-11-20 2014-07-09 杨雪雯 LED street lamp integrating rainwater power generation and solar power generation
CN104197266A (en) * 2014-09-24 2014-12-10 无锡昊瑜节能环保设备有限公司 Dual-energy-efficient streetlamp
CN204141453U (en) * 2014-08-01 2015-02-04 王健 A kind of solar street light
CN105299577A (en) * 2015-10-31 2016-02-03 潍坊友容实业有限公司 Multifunctional greening lamp pole used for saline-alkali soil
CN106871063A (en) * 2017-04-14 2017-06-20 金陵科技学院 A kind of solar street light
CN107342353A (en) * 2017-06-06 2017-11-10 佛山市香港科技大学Led-Fpd工程技术研究开发中心 One kind focuses on ultraviolet LED encapsulating structure and preparation method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102270629A (en) * 2010-06-01 2011-12-07 Lg伊诺特有限公司 Light emitting device package and lighting system
CN203147598U (en) * 2013-03-14 2013-08-21 山东中鸿新能源科技有限公司 Energy-saving lighting system with wind power generation device, solar power generation device and rainfall power generation device
CN203703793U (en) * 2013-11-20 2014-07-09 杨雪雯 LED street lamp integrating rainwater power generation and solar power generation
CN204141453U (en) * 2014-08-01 2015-02-04 王健 A kind of solar street light
CN104197266A (en) * 2014-09-24 2014-12-10 无锡昊瑜节能环保设备有限公司 Dual-energy-efficient streetlamp
CN105299577A (en) * 2015-10-31 2016-02-03 潍坊友容实业有限公司 Multifunctional greening lamp pole used for saline-alkali soil
CN106871063A (en) * 2017-04-14 2017-06-20 金陵科技学院 A kind of solar street light
CN107342353A (en) * 2017-06-06 2017-11-10 佛山市香港科技大学Led-Fpd工程技术研究开发中心 One kind focuses on ultraviolet LED encapsulating structure and preparation method thereof

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