CN204026593U - A kind of LED street lamp involute shape heat radiation air inlet - Google Patents
A kind of LED street lamp involute shape heat radiation air inlet Download PDFInfo
- Publication number
- CN204026593U CN204026593U CN201420386415.2U CN201420386415U CN204026593U CN 204026593 U CN204026593 U CN 204026593U CN 201420386415 U CN201420386415 U CN 201420386415U CN 204026593 U CN204026593 U CN 204026593U
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- air inlet
- gas hood
- ventilation gas
- street lamp
- involute shape
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model discloses a kind of LED street lamp involute shape heat radiation air inlet, and while utilizing gravity-flow ventilation condition to LED road lamp cooling, air inlet is involute shape air channel, in conjunction with light fixture top portion ventilation gas hood and ceiling, realizes more efficient gravity-flow ventilation radiating effect.Pass through 3000h experimental comparison with the common LED road lamp with cylindric air inlet 100W, in the utility model light fixture the observed temperature of radiating fin periphery will be low 5～7 degree, its radiating effect is obviously dominant, the light decay curve of actual measurement is obviously better than comparing product, simple in structure, low cost of manufacture, easy for installation.
Description
Technical field
The utility model relates to a kind of LED street lamp involute shape heat radiation air inlet, belongs to household electrical appliance field of illumination lamp technology.
Background technology
The heat dissipation problem of LED street lamp is a technology emphasis, although lamp road lighting lantern be in air and during work without solar radiation, because the power of street lamp is larger, heater thermal source is concentrated, if it is bad to dispel the heat, will directly affect LED life-span and light efficiency.For this problem, there is the active heat removal form of adding fan that adopts, as utility model patent < < LED road lamp radiating structure > > (application number: 201310154651.1), also have and in radiating fin, offer coolant channel, can cross refrigerant circulation and reach radiating effect, as < < heat radiator of high power LED street lamp > > (application number: 201110099790.X), utilize in addition lamp stand lower end for air inlet, light fixture upper end is air outlet, because draught head causes cross-ventilation mode radiating mode, as < < air channel type heat elimination LED street lamp > > (application number: 201020598269.1) etc., there is complex structure in these radiating modes, or manufacturing cost is high, or need by problems such as multiple-energy-sources more, on the other hand, while not carrying out lamp stand replacing when only changing light fixture, there is the problems such as transformation is more complicated in this air channel type heat elimination LED street lamp.Traditional and simple radiating mode is that the LED lamp back side installs radiating fin additional, in light fixture, adopt natural ventilation system heat radiation, as < < LED road lamp radiating structure > > (application number: be provided with the fin of arranging in length and breadth on the radiator 201120424062.7), and formed crisscross heat dissipation wind channel, can effectively reduce windage, improved the stability of fitting structure, also has < < LED street lamp > > (application number: 201110459459.4) disclosed radiator is by symmetrical two " people " font hollow columns, and the fin in hollow column convex surface forms, but the air inlet of these heat dissipation wind channels is all circle or square tubulose, there is no that to be conducive to the technology that intake improves open.
Summary of the invention
The purpose of this utility model is to overcome the problem that background technology proposes, and provides while utilizing gravity-flow ventilation condition to LED road lamp cooling, and air inlet is involute shape air channel, in conjunction with light fixture top portion ventilation gas hood and ceiling, realizes more efficient gravity-flow ventilation radiating effect.
The technical solution of the utility model is: a kind of LED street lamp involute shape heat radiation air inlet, comprise light fixture and ventilating part, and described light fixture comprises LED luminescent crystal, light-passing board, backboard and radiating fin; Described ventilating part comprises ventilation gas hood and ceiling, and described ceiling is positioned at ventilation gas hood top, and described ventilation gas hood has air inlet and air outlet, and described air outlet is positioned at ventilation gas hood top, and the shape of air outlet is many emissions grooves of strip hole or arranges circular hole more; It is characterized in that: described air inlet is round speaker mouth, described horn mouth section is vertically involute shape and outwards expands; Described air inlet has four at least, and air inlet is uniformly distributed along the side of ventilation gas hood periphery.Its beneficial effect is: make full use of involute feature, curvature K and radius of curvature R are all changing at every, make air-admitting surface become and increase greatly with R, wind speed diminishes with R and increases, wind direction changes with curvature K, thereby has effectively increased the actual intake velocity entering in ventilation gas hood.
The beneficial effects of the utility model are:
(1) adopt traditional gravity-flow ventilation radiating mode can reach stronger radiating effect;
(2) simple in structure, low cost of manufacture, easy for installation.
Accompanying drawing explanation
Fig. 1 is that the utility model LED street lamp is along axis cutaway view;
Fig. 2 is A place enlarged drawing in Fig. 1;
Fig. 3 is the utility model LED street lamp top view;
Fig. 4 is the utility model LED street lamp front view;
Fig. 5 adopts the utility model LED street lamp by 3000h, to test " time-luminous flux " graph of relation drawing;
Fig. 6 adopts the utility model LED street lamp by 3000h, to test " time-colour temperature " graph of relation drawing;
Fig. 7 adopts the utility model LED street lamp by 3000h, to test " time-light decay " graph of relation drawing.
Description of symbols in figure: 1-backboard, 2-ventilation gas hood, 3-light-passing board, 4-LED luminescent crystal, 5-radiating fin, 6-air outlet, 7-ceiling, 8-air inlet.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in accompanying drawing 1～4, the utility model LED street lamp involute shape heat radiation air inlet, comprises light fixture and ventilating part, and described light fixture comprises LED luminescent crystal 4, light-passing board 3, backboard 1 and radiating fin 5; Described ventilating part comprises ventilation gas hood 2 and ceiling 7 and air inlet 8, ceiling 7 is positioned at the top of ventilation gas hood 2, ventilation gas hood 2 has air inlet 8 and air outlet 6, wherein air outlet 6 is positioned at ventilation gas hood 2 tops, the shape of air outlet 6 is many emissions grooves of strip holes or arranges circular hole more, in the present embodiment, be many emissions grooves of strip hole, air inlet 8 is toroidals.
As shown in B place lines in Fig. 2, air inlet section is vertically involute shape and outwards expands, and air inlet maximum diameter is Φ
1, minimum place diameter is Φ
2in described B place involute, the size of Rb is greater than Ra, the utility model makes full use of involute feature, curvature K and radius of curvature R are all changing at every, make air-admitting surface become and increase greatly with R, and wind speed diminishes with R and increases, wind direction changes with curvature K, thereby has effectively increased the actual intake velocity entering in ventilation gas hood.
Referring to Fig. 4, in the utility model embodiment, the side of ventilation gas hood is provided with (5+3) * 2 totally 16 air inlets altogether, and wherein respectively there are 5 air inlets two sides along its length, and respectively there are 3 air inlets two sides of broad ways.
Fig. 5～7th, for the LED street lamp of 100W, adopt the light fixture of the utility model band involute shape air inlet, by the experiment of 3000h, " time-luminous flux " relation curve drawing, " time-colour temperature " relation curve and " time-light decay " graph of relation.By comparing with the common LED road lamp with cylindric air inlet 100W, in the utility model light fixture the observed temperature of radiating fin periphery will be low 5～7 degree, its radiating effect is obviously dominant, the light decay curve of actual measurement is obviously better than comparing product.
The utility model adopts traditional gravity-flow ventilation radiating mode, reaches stronger radiating effect; Simple in structure, low cost of manufacture, easy for installation.
These are only embodiment of the present utility model, but be not limited to the utility model, all any modifications of making within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in claim scope of the present utility model.
Claims (1)
1. a LED street lamp involute shape heat radiation air inlet, comprises light fixture and ventilating part, and described light fixture comprises LED luminescent crystal, light-passing board, backboard and radiating fin; Described ventilating part comprises ventilation gas hood and ceiling, and described ceiling is positioned at ventilation gas hood top, and described ventilation gas hood has air inlet and air outlet, and described air outlet is positioned at ventilation gas hood top, and the shape of air outlet is many emissions grooves of strip hole or arranges circular hole more; It is characterized in that: described air inlet is round speaker mouth, horn mouth section is vertically involute shape and outwards expands;
Described air inlet has four at least, and air inlet is uniformly distributed along the side of ventilation gas hood periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386415.2U CN204026593U (en) | 2014-07-14 | 2014-07-14 | A kind of LED street lamp involute shape heat radiation air inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386415.2U CN204026593U (en) | 2014-07-14 | 2014-07-14 | A kind of LED street lamp involute shape heat radiation air inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204026593U true CN204026593U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420386415.2U Expired - Fee Related CN204026593U (en) | 2014-07-14 | 2014-07-14 | A kind of LED street lamp involute shape heat radiation air inlet |
Country Status (1)
| Country | Link |
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| CN (1) | CN204026593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185750A (en) * | 2018-09-13 | 2019-01-11 | 湖南华特光电科技有限公司 | A kind of Projecting Lamp |
-
2014
- 2014-07-14 CN CN201420386415.2U patent/CN204026593U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185750A (en) * | 2018-09-13 | 2019-01-11 | 湖南华特光电科技有限公司 | A kind of Projecting Lamp |
| CN109185750B (en) * | 2018-09-13 | 2021-01-12 | 湖南华特光电科技有限公司 | Projection lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20210714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |