CN112161231A - Novel high-luminous-efficiency low-energy-consumption LED street lamp and control method thereof - Google Patents
Novel high-luminous-efficiency low-energy-consumption LED street lamp and control method thereof Download PDFInfo
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- CN112161231A CN112161231A CN202011165425.XA CN202011165425A CN112161231A CN 112161231 A CN112161231 A CN 112161231A CN 202011165425 A CN202011165425 A CN 202011165425A CN 112161231 A CN112161231 A CN 112161231A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
- F21S8/086—Lighting 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a novel LED street lamp with high light efficiency and low energy consumption, which relates to the technical field of lighting equipment and mainly solves the technical problem of high energy consumption of the traditional street lamp. The invention also discloses a control method of the novel LED street lamp with high light efficiency and low energy consumption. The method for driving the LED chip by adopting high voltage and low current can improve the luminous efficiency of the LED light source, improve the electro-optic conversion efficiency and prolong the service life of the LED light source, and directly replace the original traditional street lamp bulb, thereby greatly reducing the energy consumption and waste of meaningless resources.
Description
Technical Field
The invention relates to the technical field of lighting equipment, in particular to a novel LED street lamp with high light efficiency and low energy consumption and a control method thereof.
Background
An LED, a solid-state semiconductor device that converts electricity into light, has a p-n junction composed of a p-type semiconductor and an n-type semiconductor at its core. The LED is used as a semiconductor device, and the LED is distinguished from incandescent lamps and fluorescent lamps by the light emitting principle, so that the LED has the advantages of high light emitting efficiency, long service life, environmental protection and small volume. Although in recent years, due to the improvement of photoelectric conversion efficiency and light emission luminance, LEDs gradually penetrate into industries such as general lighting, automobile lighting, and the like. However, in view of the global street lamp lighting market, the traditional high-energy-consumption lighting products still occupy a large part of the market, which is unfavorable for the global situation development of increasingly tense energy sources, and if the traditional solid-state light source is replaced by the energy-saving LED products, a large amount of energy sources can be saved, the greenhouse effect caused by CO2, the acid rain caused by SO2, the mercury pollution and the like can be reduced. Therefore, the promotion of the efficient, energy-saving, environment-friendly and long-life LED products is very urgent and necessary.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and aims to provide a novel LED street lamp with high light efficiency and low energy consumption, which can save energy consumption.
The invention also aims to provide a control method of the novel LED street lamp with high light efficiency and low energy consumption, which can save energy consumption.
In order to achieve the first purpose, the invention provides a novel LED street lamp with high light efficiency and low energy consumption, which comprises an LED lamp body and an LED driving power supply which are designed in a split mode, wherein the LED lamp body comprises a shell made of high heat conduction materials, the plane part of the shell is provided with an LED lamp bead patch PCB board in a laminating mode, the top of the shell is provided with a radiating fin and a radiating fan, one end of the shell is provided with a convenient installation component, and the LED lamp bead patch PCB board and the radiating fan are connected with the LED driving power supply through wires.
As a further improvement, the LED lamp bead patch PCB comprises a PCB substrate, m lamp beads which are connected in series and n in parallel (m, n is more than or equal to 1) are arranged on the planar portion of the PCB, and the PCB substrate is attached to the planar portion of the shell.
Furthermore, the lamp bead comprises an SMD support, wherein N (N is more than or equal to 1) LED chips are arranged in the SMD support, and the N LED chips are arranged in a series and/or parallel circuit (namely A is connected in series with B in parallel, wherein A is B is N).
Further, the heat dissipation fins extend along the length direction of the housing.
Furthermore, one end of the radiating fin is provided with a through groove for mounting the radiating fan.
Further, convenient installation component is the drum structure, the peripheral cover of convenient installation component is equipped with the connecting bottom plate, lock through the bolt between convenient installation component and the connecting bottom plate.
Further, the shell is made of high-thermal-conductivity aluminum alloy materials.
The LED lamp comprises a lamp post, a lamp shade used for installing the LED lamp body is arranged at the top of the lamp post, the LED driving power supply is installed at the bottom of the lamp post, and the LED lamp body and the LED driving power supply are connected with each other through an electric wire in the lamp post.
In order to achieve the second purpose, the invention provides a novel control method of the LED street lamp with high light efficiency and low energy consumption.
As a further improvement, the working current of the n-bead lamp is reduced to be less than 65% of the rated working current of the LED chip, so that the luminous efficiency of the LED lamp is improved by more than 30%.
Particularly, when the working current of the LED chip is less than 20% of the rated current, the luminous efficiency of the light source can be improved by more than 55%, and under the prior art, the luminous efficiency can reach more than 230 LM/W.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. the luminous efficiency of the LED light source is improved, and the electro-optic conversion efficiency is improved.
And 2, the PCB is combined with an LED driving power supply, and the LED chip is driven in a high-voltage low-current mode, so that the chip is prevented from working under the condition of high current, and the light attenuation resistance and the thermal stability of the LED are improved.
3. The light source has high luminous efficiency, the lamp beads have high luminous intensity and high power density, the energy utilization rate can be effectively improved, the effects of energy conservation and emission reduction are achieved, and the energy-saving rate is improved by more than 80% compared with that of the traditional high-energy-consumption street lamp.
4. Through novel shell design and initiative heat abstractor, solve the heat dissipation problem that the chip ties to the lamp pearl, lamp pearl to the base plate, base plate to this 3 core links of shell device, can effectively prolong the life-span of LED light source.
And 5, the LED bulb and the LED drive separation technology greatly reduces the later maintenance cost of the LED street lamp, and is favorable for popularization of the LED street lamp.
6. The original bulb is replaced by the LED lamp, the original street lamp shell does not need to be replaced, and waste of resources is greatly reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of an LED lamp body according to the present invention
FIG. 3 is a schematic front view of an LED lamp body according to the present invention;
FIG. 4 is a schematic top view of the LED lamp body according to the present invention;
FIG. 5 is a left side view of the LED lamp body according to the present invention;
FIG. 6 is a right side view schematic structural diagram of the LED lamp body according to the present invention;
FIG. 7 is a schematic bottom view of the LED lamp body according to the present invention;
FIG. 8 is a schematic structural diagram of an LED lamp bead patch PCB board in the invention;
FIG. 9 is a schematic top view of a lamp bead according to the present invention;
FIG. 10 is a schematic view of the structure of the lamp bead of the present invention;
FIG. 11 is a schematic view of the connecting plate according to the present invention.
Wherein: the LED lamp comprises a 1-LED lamp body, a 2-LED driving power supply, a 3-shell, a 4-LED lamp bead patch PCB, 5-radiating fins, a 6-radiating fan, a 7-convenient installation component, an 8-PCB substrate, a 9-lamp bead, a 10-SMD support, an 11-LED chip, a 12-through groove, a 13-connecting bottom plate, a 16-lamp pole and a 17-lampshade.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 1-10, a novel high-light-efficiency low-energy-consumption LED street lamp includes a split-type LED lamp body 1 and an LED driving power supply 2. The LED lamp body 1 comprises a shell 3 made of high-heat-conduction materials, the plane part of the shell 3 is attached to an LED lamp bead patch PCB 4, and the top of the shell 3 is provided with a radiating fin 5 and a radiating fan 6. One end of the shell 3 is provided with a convenient mounting component 7, and the LED lamp bead patch PCB board 4 and the cooling fan 6 are connected with the LED driving power supply 2 through wires.
LED lamp pearl paster PCB board 4 includes PCB base plate 8, and PCB base plate 8' S plane part is equipped with m and concatenates n and the lamp pearl 9 of structural arrangement, and wherein m, n are greater than or equal to 1, and m lamp pearl 9 concatenates into one row promptly, and n is arranged such lamp pearl 9 parallelly connected, and lamp pearl total number S on the PCB base plate 8 is m x n. The PCB substrate 8 is attached to the plane part of the shell 3, so that the heat of the lamp bead 9 is easier to radiate. The lamp bead 9 includes an SMD holder 10, and N (N is greater than or equal to 1) LED chips 11 are arranged in the SMD holder 10, where the N LED chips are arranged in a series and/or parallel circuit arrangement (i.e., a is connected in series with B, where a is equal to B. The LED chips 11 are integrated in the SMD holder 10 in series or in parallel, and the LED chips 11 can be selected from chips with different power ratings.
Radiating fin 5 extends along the length direction of shell 3, and radiating fin 5's one end is equipped with the logical groove 12 that is used for installing radiator fan 6, and radiating fin 5 and 3 formula structures as an organic whole of shell are favorable to the heat of LED lamp pearl to dispel the heat fast to reduce the wick temperature. The radiating fins 5 and the radiating fan 6 are combined to conduct active heat radiation, so that effective heat radiation can be guaranteed, meanwhile, the manufacturing cost of aluminum alloy is reduced, and the LED bulb has very important significance in popularization of novel LED bulbs.
In the embodiment, the housing 3 is made of a high thermal conductivity aluminum alloy material, and has high corrosion resistance and oxidation resistance; the novel shell is designed with enough heat dissipation area and is attached to the PCB, and the novel appearance design is adopted, so that light source heat on the PCB can be effectively and quickly dissipated. In other embodiments, the housing 3 is also made of a copper material with high thermal conductivity.
The LED street lamp further comprises a lamp post 16, a lampshade 17 used for installing the LED lamp body 1 is arranged at the top of the lamp post 16, the LED driving power supply 2 is installed at the bottom of the lamp post 16, and the LED lamp body 1 and the LED driving power supply 2 are connected with each other through an electric wire in the lamp post 16. Because the LED street lamp basically adopts the structure of integrating the LED lamp and the power supply at present, the service life of the LED can reach 10 ten thousand hours, but the LED driving power supply does not keep up with the actual service life of the LED at present. In the actual use process, the failed LED lamp is caused by the failure of the LED driver with a high probability, which also brings great maintenance cost (including lifting cars, road control, etc.) to the later maintenance process of the LED street lamp, further hindering the popularization and application of the LED street lamp. Therefore, the implementation process of the invention adopts the technology of separating the LED lamp body 1 from the LED driving power supply 2, the LED lamp body 1 of the original street lamp is reserved, only the new LED driving power supply 2 needs to be replaced, the resources are saved to the maximum extent, and the problems of the direction and the storage of the original shell after the LED lamp is replaced at present are solved; meanwhile, the LED driving power supply 2 is arranged at the bottom of the street lamp pole 16 by combining the selection principle (high-voltage low-current scheme) of the LED driving power supply, so that the later maintenance cost of the LED street lamp bulb is greatly reduced.
The utility model provides a novel high light efficiency low energy consumption LED street lamp's control method, is less than LED chip 11's rated current through controlling LED drive power supply 2 output current control n and the operating current of lamp pearl 9, and LED drive power supply 2 outputs given current I and voltage V, can know by the chip photoelectric characteristic:
V＝V1+V2+…+Vm
I＝I1+I2+…In；
the invention adopts the driving power supply to output high voltage and small current, and leads n to be parallel with the working current (I) of the lamp bead 9 according to the luminous characteristic of the LED chip1,I2,…,In) The rated working current of the LED chip 11 is reduced to be less than 65%, so that the lighting effect of the LED lamp is improved by more than 30%. Particularly, when the working current of the LED chip 11 is less than 20% of the rated current, the light efficiency of the light source can be improved by more than 55%, and in the prior art, the light efficiency can reach more than 230LM/W, and high light efficiency means high electro-optic conversion efficiency, thereby improving the effective utilization of electric energy.
The invention can improve the luminous efficiency of the LED light source and improve the electro-optic conversion efficiency. The PCB is combined with the LED driving power supply, and the LED chip is driven in a high-voltage low-current mode, so that the chip is prevented from working under the condition of high current, and the light attenuation resistance and the thermal stability of the LED are improved. The light source of the invention has high lighting effect, high luminous intensity of the lamp beads and high power density, can effectively improve the energy utilization rate, achieves the effects of energy conservation and emission reduction, and improves the energy-saving rate by more than 80 percent compared with the traditional high-energy consumption street lamp. The invention solves the heat dissipation problem of 3 core links of connecting the chip to the lamp bead, connecting the lamp bead to the substrate and connecting the substrate to the shell device through a novel shell design and an active heat dissipation device, and can effectively prolong the service life of the LED light source. The LED street lamp adopts the LED bulb and LED drive separation technology, greatly reduces the later maintenance cost of the LED street lamp, and is beneficial to the popularization of the LED street lamp. Only the bulb needs to be replaced, the original street lamp shell does not need to be replaced, and waste of resources is greatly reduced.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (10)
1. The utility model provides a novel low energy consumption LED street lamp of high light efficiency, a serial communication port, LED lamp body (1), LED drive power supply (2) including split type design, LED lamp body (1) is including shell (3) that adopt the high heat conduction material to make, the plane part laminating of shell (3) is equipped with LED lamp pearl paster PCB board (4), the top of shell (3) is equipped with radiating fin (5), radiator fan (6), the one end of shell (3) is equipped with convenient installation component (7), LED lamp pearl paster PCB board (4), radiator fan (6) are connected through the wire LED drive power supply (2).
2. The novel LED street lamp with high luminous efficiency and low energy consumption as claimed in claim 1, wherein the LED lamp bead patch PCB board (4) comprises a PCB substrate (8), the planar portion of the PCB substrate (8) is provided with m strings of n lamp beads (9) which are structurally arranged (wherein m, n is greater than or equal to 1), and the PCB substrate (8) is attached to the planar portion of the housing (3).
3. The novel high-light-efficiency low-energy-consumption LED street lamp as claimed in claim 2, wherein the lamp bead (9) comprises an SMD support (10), N (N is more than or equal to 1) LED chips (11) are arranged in the SMD support (10), and the N LED chips are arranged in a series and/or parallel circuit (i.e. A is series and B is parallel, wherein A is B is N).
4. The novel LED street lamp with high luminous efficiency and low energy consumption as claimed in claim 1, characterized in that the heat dissipation fins (5) extend along the length direction of the housing (3).
5. The novel LED street lamp with high light efficiency and low energy consumption as claimed in claim 1, wherein one end of the heat dissipation fin (5) is provided with a through groove (12) for installing the heat dissipation fan (6).
6. The novel LED street lamp with high luminous efficiency and low energy consumption as claimed in claim 1, wherein the convenient installation component (7) is of a cylindrical structure, a connecting bottom plate (13) is sleeved on the periphery of the convenient installation component (7), and the convenient installation component (7) and the connecting bottom plate (13) are locked together through bolts.
7. The novel LED street lamp with high luminous efficiency and low energy consumption as claimed in claim 1, characterized in that the housing (3) is made of high thermal conductive aluminum alloy material.
8. The novel high-light-efficiency low-energy-consumption LED street lamp according to any one of claims 1 to 7, characterized in that the novel high-light-efficiency low-energy-consumption LED street lamp further comprises a lamp post (16), a lampshade (17) for installing the LED lamp body (1) is arranged on the top of the lamp post (16), the LED driving power supply (2) is installed on the bottom of the lamp post (16), and the LED lamp body (1) and the LED driving power supply (2) are connected with each other through an electric wire in the lamp post (16).
9. A control method of a novel LED street lamp with high luminous efficiency and low energy consumption is characterized in that n is controlled by a current limiting element of an LED driving power supply (2) or a PCB substrate (8), and the working current of a lamp bead (9) is lower than the rated current of an LED chip (11).
10. The novel control method of the LED street lamp with high light efficiency and low energy consumption as claimed in claim 9, wherein the operating current of the n-bead (9) is reduced to less than 65% of the rated operating current of the LED chip (11), so that the light efficiency of the LED street lamp is improved by more than 30%; or when the working current of the n-bead lamp beads (9) is reduced to be lower than 20% of the rated current, the luminous efficiency of the LED lamp is improved by more than 55% and is not lower than 230 LM/W.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165425.XA CN112161231A (en) | 2020-10-27 | 2020-10-27 | Novel high-luminous-efficiency low-energy-consumption LED street lamp and control method thereof |
| CN202110980663.4A CN113898903A (en) | 2020-10-27 | 2021-08-25 | LED street lamp and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165425.XA CN112161231A (en) | 2020-10-27 | 2020-10-27 | Novel high-luminous-efficiency low-energy-consumption LED street lamp and control method thereof |
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| CN112161231A true CN112161231A (en) | 2021-01-01 |
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| CN202011165425.XA Pending CN112161231A (en) | 2020-10-27 | 2020-10-27 | Novel high-luminous-efficiency low-energy-consumption LED street lamp and control method thereof |
| CN202110980663.4A Pending CN113898903A (en) | 2020-10-27 | 2021-08-25 | LED street lamp and control method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110980663.4A Pending CN113898903A (en) | 2020-10-27 | 2021-08-25 | LED street lamp and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954842A (en) * | 2021-02-24 | 2021-06-11 | 幂光新材料科技（上海）有限公司 | Operation method for reducing carbon dioxide emission in public lighting lamp transformation |
| CN113054087A (en) * | 2021-03-19 | 2021-06-29 | 幂光新材料科技（上海）有限公司 | LED lamp bead packaging mode and circuit structure for improving electro-optic conversion efficiency |
| CN114520215A (en) * | 2021-10-11 | 2022-05-20 | 幂光新材料科技（上海）有限公司 | LED chip, LED lamp and working method |
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| CN113054087A (en) * | 2021-03-19 | 2021-06-29 | 幂光新材料科技（上海）有限公司 | LED lamp bead packaging mode and circuit structure for improving electro-optic conversion efficiency |
| CN114520215A (en) * | 2021-10-11 | 2022-05-20 | 幂光新材料科技（上海）有限公司 | LED chip, LED lamp and working method |
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| Publication number | Publication date |
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| CN113898903A (en) | 2022-01-07 |
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Application publication date: 20210101 |