CN206504206U - A kind of high heat dissipation street lamp - Google Patents
A kind of high heat dissipation street lamp Download PDFInfo
- Publication number
- CN206504206U CN206504206U CN201720136836.3U CN201720136836U CN206504206U CN 206504206 U CN206504206 U CN 206504206U CN 201720136836 U CN201720136836 U CN 201720136836U CN 206504206 U CN206504206 U CN 206504206U
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- China
- Prior art keywords
- heat
- led lamp
- lamp
- shell
- housing
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of high heat dissipation street lamp, including lamp body framework, LED lamp, housing and diffuser, LED lamp is arranged on lamp body framework, heat-transfer metal shell is provided with above LED lamp, it is covered with below LED lamp above diffuser, heat-transfer metal shell and is provided with heat-conducting plastic shell, housing is covered with above lamp body framework, leave space between housing and heat-conducting plastic shell, LED lamp, heat-transfer metal shell, heat-conducting plastic shell and housing longitudinal section it is streamlined.The utility model improves the heat loss through convection and heat loss through radiation effect of LED street lamp.
Description
Technical field
The utility model is related to a kind of LED street lamp, more particularly to a kind of high heat dissipation street lamp.
Background technology
The basic light emitting source of LED street lamp is high-power LED chip, and current chip electro-optical efficiency is very low, only 15%
~20%, the area very little of chip, power density and caloric value are very big, and 80%~85% consumed in electric energy is converted into heat energy
And need dissipated, and chip temperature exceed certain value when, emission wavelength is elongated, color occur red shift, core will be caused
The problems such as the decline of piece light extraction efficiency and service life reduction.Therefore to ensure that great power LED can normally be efficiently used,
Radiating is the key issue firstly the need of solution.
Present LED street lamp is radiated by the radiator carried of LED street lamp mostly, and radiator is arranged on LED lamp panel
Top, the substrate of radiator is contacted with LED lamp panel, and substrate is provided with finned radiator.The material of radiator is most of at present
Aluminium alloy is used, because with low cost, handling ease, and also thermal conductivity is good.Last radiating is and right mainly by convection current and radiation
Stream determines that existing radiator is generally tabular by the shape and area of radiator completely, is unfavorable for heat loss through convection, and thereon
Although fin adds area of dissipation, but causes the generation of vortex, have impact on heat loss through convection, the radiation of radiation then with material
Property is relevant, and the heat emissivity coefficient of aluminum alloy materials is not high, generally requires by oxidation processes to improve the spoke of aluminum alloy materials
Penetrate radiating.
In Chinese patent literature disclosed " dynamo lighting set radiated with heat-conducting plastic ", its notification number is
CN204268304U, the day for announcing is on April 15th, 2015, and this application case discloses a kind of bicycle radiated with heat-conducting plastic
Lamp, it, which includes to be provided with lamp housing, lamp housing before LED lamp bead, LED lamp bead, is provided with lampshade, and LED lamp bead is fixed on aluminium
On the circuit board of base, it is characterised in that the reverse side of the circuit board is fitted with the fin of aluminum, a part for its lamp housing is to use
What moulded heat-conductive insulated plastics were made, the enclosure portion of the moulded heat-conductive insulated plastics is close on a heat sink, and the heat in LED lamp bead is successively
Lamp housing through circuit board, fin and moulded heat-conductive insulated plastics conducts and dissipates and release.The utility model is radiated using heat-conducting plastic, heat conduction
Plastics do not need any oxidation processes just to reach high radiation coefficient, and the effect of heat loss through radiation is and passes through oxidation processes
The effect of aluminium alloy heat radiator be identical, but this structure can not improve the heat loss through convection effect of LED street lamp.
Utility model content
The utility model in order to overcome LED street lamp heat loss through convection effect in the prior art and heat loss through radiation effect difference not
There is provided a kind of heat loss through convection and the good high heat dissipation street lamp of heat loss through radiation effect for foot.
To achieve these goals, the utility model uses following technical scheme：
A kind of high heat dissipation street lamp, including lamp body framework, LED lamp, housing and diffuser, LED lamp are arranged on lamp body
It is provided with framework, above LED lamp below heat-transfer metal shell, LED lamp and is covered with diffuser, heat conduction is provided with above heat-transfer metal shell
Plastic housing, is covered with housing above lamp body framework, leaves space between housing and heat-conducting plastic shell, LED lamp, heat-transfer metal shell,
The longitudinal section of heat-conducting plastic shell and housing is streamlined.The shell-like structure of heat-transfer metal shell adds heat transfer area, heat conduction modeling
The shell-like structure of material shell adds area of dissipation for the tabular radiator for not setting fin, and removes fin and subtract
Small vortex, improves heat loss through convection effect, and not need any oxidation processes just to reach high for heat-conducting plastic shell
Radiation coefficient, it with the effect of the aluminium alloy heat radiator by oxidation processes is identical that the effect of heat loss through radiation, which is, but heat conduction
The heat-conductive characteristic of plastic housing is not so good as metal, so integral heat sink effect can be weaker, plus last layer heat-transfer metal shell, it is possible to
The low unfavorable factor of this heat transfer is minimized.LED lamp, heat-transfer metal shell, heat-conducting plastic shell and housing it is streamlined
Structure reduces vortex, accelerates air velocity, improves heat loss through convection effect, according to air hydrodynamics, such structure
Convected air can be produced, strengthens heat loss through convection.
Preferably, it is close to scribble heat conduction between heat-transfer metal shell and LED lamp, between heat-transfer metal shell and heat-conducting plastic shell
Sealing.In order to improve the radiating of LED lamp, conduction heat sealable glue is added, to replace the air of poor heat conductivity.
Preferably, lamp body framework is provided with air inlet and air outlet, air inlet is positioned close to streamline LED lamp body head
The position in portion, air outlet is positioned close to the position of streamline LED lamp body afterbody, and air inlet is installed with radiator fan.
The big end of streamline LED lamp body is head, and small end is afterbody, by radiator fan forced convertion, strengthens heat loss through convection.
Preferably, shell inner surface scribbles black coating, strengthen absorption of the upper shell to heat radiation, so as to improve heat conduction
The radiating effect of plastics.
Therefore, the utility model has the advantages that：Improve LED street lamp heat loss through convection and heat loss through radiation effect.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, LED lamp, 2, heat-transfer metal shell, 3, heat-conducting plastic shell, 4, housing, 5, radiator fan, 6, diffuser,
7th, lamp body framework.
Embodiment
Below by specific embodiment, and with reference to accompanying drawing, the technical solution of the utility model is made more specifically
It is bright.
As shown in figure 1, a kind of high heat dissipation street lamp, including lamp body framework 7, LED lamp 1, housing 4 and diffuser 6.LED
Lamp body 1 is arranged on lamp body framework 7, and the top of LED lamp 1 is provided with heat-transfer metal shell 2, and the top of heat-transfer metal shell 2 is provided with heat conduction modeling
Material shell 3.The heat-transfer metal shell 2 is punching press copper shell.The top of lamp body framework 7 is covered with housing 4, and the lower section of LED lamp 1 is covered with diffuser
6.Space is left between housing 4 and heat-conducting plastic shell 3.LED lamp 1, heat-transfer metal shell 2, heat-conducting plastic shell 3 and housing 4 it is vertical
Section is streamlined.Heat conduction is scribbled between heat-transfer metal shell 2 and LED lamp 1, between heat-transfer metal shell 1 and heat-conducting plastic shell 3
Fluid sealant.Lamp body framework 7 is provided with air inlet and air outlet, and air inlet is positioned close to the position on the head of streamline LED lamp body 1
Put, air outlet is positioned close to the position of the afterbody of streamline LED lamp body 1.Air inlet is installed with radiator fan 5.
Claims (4)
1. a kind of high heat dissipation street lamp, including lamp body framework（7）, LED lamp（1）, housing（4）And diffuser（6）, its feature
It is that the LED lamp is arranged on lamp body framework, heat-transfer metal shell is provided with above LED lamp（2）, the diffuser covers on LED
Below lamp body, heat-conducting plastic shell is provided with above the heat-transfer metal shell（3）, the case cover is above the lamp body framework, institute
State and space is left between housing and heat-conducting plastic shell, the LED lamp, heat-transfer metal shell, heat-conducting plastic shell and the vertical of housing cut
Face is streamlined.
2. high heat dissipation street lamp according to claim 1, it is characterized in that, between the heat-transfer metal shell and LED lamp,
Conduction heat sealable glue is scribbled between heat-transfer metal shell and heat-conducting plastic shell.
3. high heat dissipation street lamp according to claim 1, it is characterized in that, the lamp body framework is provided with air inlet and goes out
Air port, the air inlet is positioned close to the position on streamline LED lamp body head, and the air outlet is positioned close to streamlined
The position of LED lamp afterbody, the air inlet is installed with radiator fan（5）.
4. high heat dissipation street lamp according to claim 1, it is characterized in that, the shell inner surface scribbles black coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720136836.3U CN206504206U (en) | 2017-02-15 | 2017-02-15 | A kind of high heat dissipation street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720136836.3U CN206504206U (en) | 2017-02-15 | 2017-02-15 | A kind of high heat dissipation street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206504206U true CN206504206U (en) | 2017-09-19 |
Family
ID=59834328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720136836.3U Expired - Fee Related CN206504206U (en) | 2017-02-15 | 2017-02-15 | A kind of high heat dissipation street lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206504206U (en) |
-
2017
- 2017-02-15 CN CN201720136836.3U patent/CN206504206U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 Termination date: 20200215 |