CN113028322A - LED street lamp - Google Patents

LED street lamp Download PDF

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Publication number
CN113028322A
CN113028322A CN202110305292.XA CN202110305292A CN113028322A CN 113028322 A CN113028322 A CN 113028322A CN 202110305292 A CN202110305292 A CN 202110305292A CN 113028322 A CN113028322 A CN 113028322A
Authority
CN
China
Prior art keywords
street lamp
led street
lamp holder
heat
led
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110305292.XA
Other languages
Chinese (zh)
Inventor
易汉平
周虎
张雪亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Bauhinia Technology Co ltd
ORDOS CITY OF CHINESE REDBUD INNOVATION INSTITUTE
Original Assignee
Tianjin Bauhinia Technology Co ltd
ORDOS CITY OF CHINESE REDBUD INNOVATION INSTITUTE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Bauhinia Technology Co ltd, ORDOS CITY OF CHINESE REDBUD INNOVATION INSTITUTE filed Critical Tianjin Bauhinia Technology Co ltd
Priority to CN202110305292.XA priority Critical patent/CN113028322A/en
Publication of CN113028322A publication Critical patent/CN113028322A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • F21V29/56—Cooling arrangements using liquid coolants
    • F21V29/58—Cooling arrangements using liquid coolants characterised by the coolants
    • 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
    • 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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • 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)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention provides an LED street lamp, which comprises a street lamp holder and an LED light source, wherein the street lamp holder comprises an upper LED street lamp holder cover and a lower LED street lamp holder base, a powder material is coated on the upper LED street lamp holder cover, a plurality of bulges are arranged on the upper LED street lamp holder cover in an array mode, a heat-conducting film is pasted on the lower LED street lamp holder base, a sealed cavity is formed by the upper LED street lamp holder cover and the lower LED street lamp holder base, the sealed cavity is filled with heat-conducting liquid, and the LED light source is fixed on the lower LED street lamp holder base. The invention provides an LED street lamp, which is characterized in that heat generated by the LED street lamp is conducted to heat-conducting liquid through a heat-conducting film, the heat is conducted to the surface of an upper cover of a lamp holder of the LED street lamp through the heat-conducting liquid in a circulating convection mode, and powder materials coated on the surface of the heat-conducting liquid conduct the heat to air through heat radiation and conduction.

Description

LED street lamp
Technical Field
The invention belongs to the technical field of street lamp equipment, and particularly relates to an LED street lamp.
Background
The LED has the characteristics of high luminous efficiency and long service life. Although the LED emits cold light, the LED also generates heat, if the heat generated by the LED cannot be dissipated in time, the temperature of the LED is continuously increased until heat generation and heat dissipation reach heat balance, and the service life and the light emitting efficiency of the LED are influenced by high temperature. Especially for the LED street lamp, the power is large, the heat dissipation is relatively difficult, and the LED street lamp in the current market is difficult to realize high luminous efficiency and long service life.
At present, the lamp cap of the LED street lamp in the prior art generally adopts an aluminum alloy heat sink, because aluminum has good heat conductivity and relatively light specific gravity, but once the power of the LED street lamp exceeds 100 watts, the aluminum alloy heat sink cannot well conduct out the heat generated by the LED, which greatly shortens the service life of the LED. Some LED street lamp holders in the prior art can also adopt heat pipes for heat conduction, and although the heat pipes have good heat conduction effect, the structure is relatively complex, the cost is high, the use is not convenient, and the LED street lamp cannot be used on a large scale.
To sum up, how to strengthen the radiating effect of the LED street lamp, satisfy the radiating requirement of the more powerful LED street lamp, reduce cost when improving the service life of the LED street lamp, have become the problem that needs to be solved urgently.
Disclosure of Invention
In order to overcome a series of defects in the prior art, the invention aims to solve the problems and provide an LED street lamp, which comprises a street lamp cap and an LED light source 6 and is characterized in that the street lamp cap comprises an LED street lamp cap upper cover 1 and an LED street lamp cap lower bottom 2, a powder material 5 is coated on the LED street lamp cap upper cover 1, a plurality of protrusions 4 are arranged on the LED street lamp cap upper cover 1 in an array mode, a heat conducting film is adhered to the LED street lamp cap lower bottom 2, a sealed cavity 3 is formed by the LED street lamp cap upper cover 1 and the LED street lamp cap lower bottom 2, the sealed cavity 3 is filled with a heat conducting liquid 8, and the LED light source 6 is fixed on the LED street lamp cap lower bottom 2.
Preferably, the LED street lamp lampshade 7 for protecting the LED light source 6 is further fixed to the bottom 2 of the LED street lamp holder.
Preferably, the powder material 5 is micro powder graphite or graphene powder.
Preferably, the heat conducting film is a copper foil or an aluminum foil or a graphene composite material film.
Preferably, the heat conducting liquid 8 is water, heat conducting oil, an aqueous solution or other organic solvents.
Preferably, the thickness of the heat conduction film is 0.2-1 mm.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention provides an LED street lamp, which is characterized in that heat generated by the LED street lamp is conducted to heat-conducting liquid through a heat-conducting film, the heat is conducted to the surface of an upper cover of a lamp holder of the LED street lamp through the heat-conducting liquid in a circulating convection mode, and powder materials coated on the surface of the heat-conducting liquid conduct the heat to air through heat radiation and conduction.
2) The invention provides an LED street lamp, wherein a plurality of bulges are arranged on an upper cover of a lamp holder of the LED street lamp in an array mode, and a powder material is coated on the upper cover of the lamp holder of the LED street lamp, so that the surface area of the lamp holder is greatly increased, and the heat dissipation capability of the lamp holder is greatly enhanced.
Drawings
Fig. 1 is a schematic structural diagram of an LED street lamp according to the present invention.
The reference numbers in the figures are:
1-an upper cover of a lamp holder of an LED street lamp, 2-a lower bottom of the lamp holder of the LED street lamp, 3-a sealed cavity, 4-a protrusion, 5-a powder material, 6-an LED light source, 7-a lampshade of the LED street lamp and 8-a heat-conducting liquid.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiments and the directional terms described below with reference to the drawings are exemplary and intended to be used in the explanation of the invention, and should not be construed as limiting the invention.
As shown in fig. 1, an LED street lamp comprises a lamp holder and an LED light source 6, and is characterized in that the lamp holder comprises an upper cover 1 and a lower bottom 2, the upper cover 1 is coated with a powder material 5, the upper cover 1 is provided with a plurality of protrusions 4, the lower bottom 2 is coated with a heat-conducting film, the upper cover 1 and the lower bottom 2 form a sealed cavity 3, the sealed cavity 3 is filled with a heat-conducting liquid 8, and the LED light source 6 is fixed on the lower bottom 2.
Preferably, the LED street lamp lampshade 7 for protecting the LED light source 6 is further fixed to the bottom 2 of the LED street lamp holder.
Preferably, the powder material 5 is micro powder graphite or graphene powder.
Preferably, the heat conducting film is a copper foil or an aluminum foil or a graphene composite material film.
Preferably, the heat conducting liquid 8 is water, heat conducting oil, an aqueous solution or other organic solvents.
Preferably, the thickness of the heat conduction film is 0.2-1 mm.
The invention decomposes the heat dissipation of the LED street lamp cap into three parts, and then takes measures to improve respectively. The first step is the conduction of heat generated by the LED light source 6 to the street lamp cap, the second step is the conduction of heat from the street lamp cap to the surface of the street lamp cap, and the third step is the conduction of heat from the surface of the street lamp cap to the air. According to the invention, the heat of the LED light source 6 is conducted to the street lamp cap by adopting the heat conducting film in the first step, the heat is relatively and uniformly conducted to the surface of the street lamp cap by adopting the liquid circulation convection mode in the second step, the heat transfer efficiency is far higher than that of solid conduction heat transfer in the liquid circulation convection mode, and the powder material 5 is coated on the surface of the street lamp cap in the third step, so that the surface area of the street lamp cap is greatly increased, and the heat dissipation capability of the street lamp cap is greatly enhanced.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (6)

1. The utility model provides a LED street lamp, includes street lamp holder and LED light source (6), its characterized in that, the street lamp holder includes that LED street lamp holder upper cover (1) and LED street lamp holder go to the bottom (2), the coating has powder material (5) on LED street lamp holder upper cover (1), just the array is provided with a plurality of archs (4) on LED street lamp holder upper cover (1), LED street lamp holder (2) are gone to the bottom and are applied the heat conduction membrane, LED street lamp holder upper cover (1) with LED street lamp holder goes to the bottom (2) constitute a seal chamber (3), just seal chamber (3) are full of heat conduction liquid (8), LED light source (6) are fixed on LED street lamp holder (2) go to the bottom.
2. The LED street lamp according to claim 1, wherein the powder material (5) is micro graphite powder or graphene powder.
3. The LED street lamp according to claim 1, wherein the heat conducting film is a copper foil or an aluminum foil or a graphene composite material film.
4. The LED street light according to claim 1, characterized in that the heat conducting liquid (8) is water or heat conducting oil or an aqueous solution.
5. The LED street lamp according to any one of claims 1 to 4, wherein the thickness of the thermal conductive film is 0.2 to 1 mm.
6. The LED street lamp according to any one of claims 1 to 4, characterized in that an LED street lamp cover (7) for protecting the LED light source (6) is further fixed to the bottom base (2) of the LED street lamp base.
CN202110305292.XA 2021-03-19 2021-03-19 LED street lamp Pending CN113028322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110305292.XA CN113028322A (en) 2021-03-19 2021-03-19 LED street lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110305292.XA CN113028322A (en) 2021-03-19 2021-03-19 LED street lamp

Publications (1)

Publication Number Publication Date
CN113028322A true CN113028322A (en) 2021-06-25

Family

ID=76472709

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110305292.XA Pending CN113028322A (en) 2021-03-19 2021-03-19 LED street lamp

Country Status (1)

Country Link
CN (1) CN113028322A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101487575A (en) * 2009-02-18 2009-07-22 史杰 Irradiation angle-adjustable high-cooling property high-power LED road lamp cap
CN101598319A (en) * 2009-06-23 2009-12-09 深圳市阳光富源科技有限公司 The method that LED street lamp heat transfer unit (HTU) and heat transfer unit (HTU) inner chamber thereof vacuumize
CN201568933U (en) * 2009-04-23 2010-09-01 湖北小天地科技有限公司 LED street lamp system
CN201636805U (en) * 2009-12-24 2010-11-17 谢庆生 Oil-cooling heat-dissipation mode of large-power LED street lamp
CN201739922U (en) * 2009-07-16 2011-02-09 艾迪光电（杭州）有限公司 High-power LED (light-emitting diode) streetlamp
CN202216082U (en) * 2011-08-03 2012-05-09 邵武市兴融科技光电制造有限公司 Light-emitting diode (LED) road lamp
CN106641936A (en) * 2016-12-14 2017-05-10 神州交通工程集团有限公司 High heat-dissipation LED street lamp
CN106838713A (en) * 2016-12-08 2017-06-13 江苏省瑞翔灯业制造有限公司 A kind of Heat radiation lamp holder based on gas-liquid cycle
CN107314353A (en) * 2017-07-03 2017-11-03 鄂尔多斯市紫荆创新研究院 A kind of high thermal conductivity graphene metal composite multi-layer heat dissipation device and preparation method thereof
CN207438162U (en) * 2017-02-24 2018-06-01 张伯文 A kind of graphene LED luminescence units and its LED light
CN207648673U (en) * 2017-12-21 2018-07-24 天津宝坻紫荆科技有限公司 Integral solar LED street lamp

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101487575A (en) * 2009-02-18 2009-07-22 史杰 Irradiation angle-adjustable high-cooling property high-power LED road lamp cap
CN201568933U (en) * 2009-04-23 2010-09-01 湖北小天地科技有限公司 LED street lamp system
CN101598319A (en) * 2009-06-23 2009-12-09 深圳市阳光富源科技有限公司 The method that LED street lamp heat transfer unit (HTU) and heat transfer unit (HTU) inner chamber thereof vacuumize
CN201739922U (en) * 2009-07-16 2011-02-09 艾迪光电（杭州）有限公司 High-power LED (light-emitting diode) streetlamp
CN201636805U (en) * 2009-12-24 2010-11-17 谢庆生 Oil-cooling heat-dissipation mode of large-power LED street lamp
CN202216082U (en) * 2011-08-03 2012-05-09 邵武市兴融科技光电制造有限公司 Light-emitting diode (LED) road lamp
CN106838713A (en) * 2016-12-08 2017-06-13 江苏省瑞翔灯业制造有限公司 A kind of Heat radiation lamp holder based on gas-liquid cycle
CN106641936A (en) * 2016-12-14 2017-05-10 神州交通工程集团有限公司 High heat-dissipation LED street lamp
CN207438162U (en) * 2017-02-24 2018-06-01 张伯文 A kind of graphene LED luminescence units and its LED light
CN107314353A (en) * 2017-07-03 2017-11-03 鄂尔多斯市紫荆创新研究院 A kind of high thermal conductivity graphene metal composite multi-layer heat dissipation device and preparation method thereof
CN207648673U (en) * 2017-12-21 2018-07-24 天津宝坻紫荆科技有限公司 Integral solar LED street lamp

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Application publication date: 20210625