CN202349962U

CN202349962U - LED (light emitting diode) lighting fixture radiating mechanism using air natural convection

Info

Publication number: CN202349962U
Application number: CN201120510511XU
Authority: CN
Inventors: 李顺程
Original assignee: SICHUAN WUXIN ENERGY SOURCES SCIENCE CO Ltd
Current assignee: SICHUAN WUXIN ENERGY SOURCES SCIENCE CO Ltd
Priority date: 2011-12-09
Filing date: 2011-12-09
Publication date: 2012-07-25
Anticipated expiration: 2021-12-09

Abstract

The utility model relates to an LED (light emitting diode) lighting fixture radiating mechanism using air natural convection. The radiating mechanism comprises an LED luminous module (1), a lamp housing, a drive power supply (4) and an electric wire (7), and is characterized in that: the upper top surface and lower top surface of the lamp housing are provided with a hot air outlet hole (8) and a cold air inlet hole (9) respectively. In the utility model, since the upper top surface and lower top surface of the lamp housing are provided with the hot air outlet hole and the cold air inlet hole respectively, after the cold air enters the lamp housing and a great amount of heat is absorbed, the heat quickly passes through the hot air outlet hole and is carried out of the lamp housing according to the principle of hot air rising; and by repeating the mode, air convection is formed, and the heat dissipation is accelerated, thus the service life of a high-power LED lamp is prolonged.

Description

A kind of LED lighting cooling mechanism that utilizes natural convection air

Technical field

The utility model relates to a kind of light fixture cooling mechanism, especially relates to a kind of LED lighting cooling mechanism that utilizes natural convection air.

Background technology

The radiating mode that general LED lighting adopts is active and passive type.So-called active heat radiation refers to fan dispels the heat, risk, the increase energy consumption of this mode shortcoming for increasing material cost, increase device fault.So-called passive type is mainly the heat radiation mode, with heat exchange among atmosphere.

Above-mentioned two kinds of radiating modes exist heat radiation cost height or the not good problem of radiating effect for high-power LED lamp, especially are not suitable for the conventional road lamp lamp housing.

Summary of the invention

The utility model has designed a kind of LED lighting cooling mechanism that utilizes natural convection air, and the technical problem of its solution is that existing LED light fixture radiating mode exists heat radiation cost height or the not good problem of radiating effect.

In order to solve the technical problem of above-mentioned existence, the utility model has adopted following scheme:

A kind of LED lighting cooling mechanism that utilizes natural convection air; Comprise LED light emitting module (1), lamp housing, driving power (4) and electric wire (7), it is characterized in that: end face and bottom surface are offered hot-air venthole (8) and cold air blowhole (9) respectively on said lamp housing.

Further, the air line distance between said hot-air venthole (8) and the said cold air blowhole (9) is the longest.

Further, said LED light emitting module (1) is positioned between said hot-air venthole (8) and the said cold air blowhole (9).

Further, said lamp housing is streetlamp housing (2).

Further, said electric wire (7) place of interconnecting also is provided with water joint (6).

Further, also comprise lamp housing firm banking (3), said lamp housing firm banking (3) is fixedly connected with said streetlamp housing (2) one ends.

Further, said LED light emitting module (1) comprises chip (11), lens (12) and radiating fin (13), and said chip (11) is positioned between lens (12) and the radiating fin (13).

This utilizes the LED lighting cooling mechanism of natural convection air to compare with traditional heat-dissipating mechanism, has following beneficial effect:

(1) the utility model since on lamp housing end face and bottom surface offer hot-air venthole and cold air blowhole respectively; After making cold air get into to absorb a large amount of heats behind the lamp housing; Utilize the hot-air rising principle, take heat out of lamp housing through the hot-air venthole rapidly, repeat this mode and form cross-ventilation; Quicken heat radiation, to raise high-power LED lamp service life.

(2) hot-air venthole and cold air blowhole only need on existing lamp housing, to open in the utility model, need not die sinking again again, and the lamp housing exo-selective is high, thereby when improving radiating effect, can save and control manufacturing cost.

(3) the utility model is owing to be provided with water joint at the electric wire place of interconnecting, thereby in the sleet sky, in the rainwater entering lamp housing, also can not cause the light fixture short circuit.

Description of drawings

Fig. 1: the utility model utilizes the LED lighting cooling mechanism structural representation of natural convection air;

Fig. 2: the vertical view of LED light emitting module in the utility model;

Fig. 3: the front view of LED light emitting module in the utility model;

Fig. 4: the left view of LED light emitting module in the utility model.

Description of reference numerals:

1-LED light emitting module; 11-chip; 12-lens; 13-radiating fin; 2-streetlamp housing; 3-lamp housing firm banking; 4-driving power; 5-cross-ventilation direction; 6-water joint; 7-electric wire; 8-hot-air venthole; 9-cold air blowhole.

The specific embodiment

Below in conjunction with Fig. 1 to Fig. 4, the utility model is further specified:

As shown in Figure 1; A kind of LED lighting cooling mechanism that utilizes natural convection air; Comprise LED light emitting module 1, streetlamp housing 2, driving power 4 and electric wire 7, end face and bottom surface are offered hot-air venthole 8 and cold air blowhole 9 respectively on streetlamp housing 2.After making cold air get into to absorb a large amount of heats behind the lamp housing, utilize the hot-air rising principle, take heat out of lamp housing through the hot-air venthole rapidly, repeat this mode and form cross-ventilation, quicken heat radiation, to raise high-power LED lamp service life.

Air line distance between hot-air venthole 8 and the cold air blowhole 9 is the longest.LED light emitting module 1 is between hot-air venthole 8 and cold air blowhole 9.So can farthest heat be derived lamp housing so that air communication channel covers whole LED light fixture heat dissipation region fully.

Electric wire 7 places of interconnecting also are provided with water joint 6.In the sleet sky, rainwater gets in the lamp housing, because the existence of water joint 6 can not cause the light fixture short circuit yet.

Lamp housing firm banking 3 is fixedly connected with streetlamp housing 2 one ends.Lamp housing firm banking 3 also will be connected with lamp stand.

To shown in Figure 4, LED light emitting module 1 comprises chip 11, lens 12 and radiating fin 13 like Fig. 2, and chip 11 is between lens 12 and radiating fin 13.

Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the realization of the utility model does not receive the restriction of aforesaid way; As long as adopted method design of the utility model and the various improvement that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all in the protection domain of the utility model.

Claims

1. LED lighting cooling mechanism that utilizes natural convection air; Comprise LED light emitting module (1), lamp housing, driving power (4) and electric wire (7), it is characterized in that: end face and bottom surface are offered hot-air venthole (8) and cold air blowhole (9) respectively on said lamp housing.

2. according to the said LED lighting cooling mechanism that utilizes natural convection air of claim 1, it is characterized in that: the air line distance between said hot-air venthole (8) and the said cold air blowhole (9) is the longest.

3. according to the said LED lighting cooling mechanism that utilizes natural convection air of claim 2, it is characterized in that: said LED light emitting module (1) is positioned between said hot-air venthole (8) and the said cold air blowhole (9).

4. according to any one said LED lighting cooling mechanism that utilizes natural convection air in the claim 1 to 3, it is characterized in that: said lamp housing is streetlamp housing (2).

5. according to the said LED lighting cooling mechanism that utilizes natural convection air of claim 4, it is characterized in that: said electric wire (7) place of interconnecting also is provided with water joint (6).

6. according to the said LED lighting cooling mechanism that utilizes natural convection air of claim 5, it is characterized in that: also comprise lamp housing firm banking (3), said lamp housing firm banking (3) is fixedly connected with said streetlamp housing (2) one ends.

7. according to claim 1,2,3, the 5 or 6 said LED lighting cooling mechanisms that utilize natural convection air; It is characterized in that: said LED light emitting module (1) comprises chip (11), lens (12) and radiating fin (13), and said chip (11) is positioned between lens (12) and the radiating fin (13).

8. according to the said LED lighting cooling mechanism that utilizes natural convection air of claim 4; It is characterized in that: said LED light emitting module (1) comprises chip (11), lens (12) and radiating fin (13), and said chip (11) is positioned between lens (12) and the radiating fin (13).