CN201121844Y - Outdoor light-emitting diode lamp with high heat dissipation performance and lamp housing device thereof - Google Patents

Abstract

A lamp housing device of an outdoor light-emitting diode lamp with high heat dissipation performance comprises: an upper shell, a cover body and a sun shield. The cover body has light transmittance and is matched with the upper shell to form a containing chamber capable of containing an LED lamp set. The sun shield is arranged on the outer surface of the upper shell and comprises a plate body and a plurality of fixing pieces, wherein the fixing pieces are connected between the plate body and the upper shell, and the plate body and the upper shell are spaced at a certain distance. The sun shield can reduce the ambient temperature of the light emitting diode in daytime and can improve the heat dissipation rate when the light emitting diode is used at night.

Description

Outdoor light-emitting diode lamp with high heat dissipation and its lamp housing device

technical field

The utility model relates to an outdoor light-emitting diode lamp and a lamp housing device thereof, in particular to an outdoor light-emitting diode lamp with high heat dissipation and a lamp housing device thereof.

Background technique

Because light-emitting diodes have the advantages of power saving, environmental protection, high brightness, and long service life, they have gradually replaced traditional lighting sources. In the field of outdoor lighting equipment, such as street lamps, applications using light emitting diodes as light sources have also been proposed. Referring to FIG. 1 , a street lamp that generally uses light-emitting diodes as a light source mainly includes an upper casing 91 , a light-transmittable cover 92 and a light-emitting diode disposed in a chamber 93 formed by the upper casing 91 and the cover 92 . Array94.

Although light-emitting diodes have the above advantages, a large amount of heat energy will be generated when light-emitting diodes emit light, especially for high-power light-emitting diodes. reduce. Moreover, since the street lamps are installed outdoors and exposed to sunlight during the day, the lamp housing and the space inside the lamp housing will also store heat energy, thereby affecting the luminous efficiency of the light-emitting diodes.

Utility model content

The purpose of the utility model is to provide a lamp housing device of an outdoor light-emitting diode lamp with high heat dissipation that can reduce the heat energy storage generated by sunlight irradiation and increase the flow of hot air.

Another purpose of the present utility model is to provide an outdoor light-emitting diode lamp with high heat dissipation.

The utility model discloses a lamp housing device of an outdoor light-emitting diode lamp with high heat dissipation, comprising: an upper housing, a cover body and a sun visor. The cover body has light transmittance, and cooperates with the upper casing to form a chamber that can accommodate a light emitting diode lamp group. The sun visor is arranged on the outer surface of the upper casing, and includes a plate body and a plurality of fixing pieces, and the fixing pieces are connected between the plate body and the upper casing, and make the plate body and the upper casing The bodies have a separation distance.

The beneficial effect of the utility model is that: the sun visor can be used to shield sunlight, so as to avoid direct sunlight on the upper casing and reduce heat energy stored in the upper casing and the chamber. Moreover, the cooperation between the sun visor and the upper shell can accelerate the flow of hot air, which can greatly increase the heat dissipation rate.

Description of drawings

FIG. 1 is a schematic diagram illustrating an existing outdoor LED lamp;

Fig. 2 is a schematic side view illustrating the first preferred embodiment of the lamp housing device of the outdoor LED lamp with high heat dissipation and the LED lamp having the lamp housing device of the present invention;

Figure 3 is another perspective view of Figure 2, illustrating the first preferred embodiment;

Fig. 4 is a schematic cross-sectional view illustrating the second preferred embodiment of the lamp housing device of the outdoor LED lamp with high heat dissipation and the LED lamp having the lamp housing device of the present invention;

Figure 5 is a bottom view illustrating the second preferred embodiment;

Fig. 6 is a schematic cross-sectional view illustrating the third preferred embodiment of the lamp housing device of the outdoor LED lamp with high heat dissipation and the LED lamp having the lamp housing device of the present invention;

Fig. 7 is a plan view illustrating a grille hole of a sun visor of the third preferred embodiment.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same numerals.

Referring to FIG. 2 and FIG. 3 , the first preferred embodiment of the lamp housing device of the outdoor LED lamp with high heat dissipation and the LED lamp with the lamp housing device of the present invention is illustrated. The LED lamp 1 includes a lamp housing device 2 and a LED lamp group 3 . The lamp housing device 2 includes an upper housing 4 made of metal material, a transparent cover 5 and a sun visor 6 . The upper casing 4 includes a casing portion 41 and a plurality of cooling fins 42 formed on the outer surface of the casing portion 41 . The cover body 5 cooperates with the casing part 41 to form a chamber 21 for accommodating the LED lamp group 3 . The LED lamp set 3 is fixed on the inner surface of the housing portion 41 , and the heat energy generated by the LED lamp set 3 can be conducted to the outside of the chamber 21 through the housing portion 41 and the cooling fins 42 to increase the heat dissipation rate.

The sun visor 6 is disposed on the shell portion 41 and includes a plate body 61 and a plurality of fixing pieces 62 . The plate body 61 is preferably made of a material with heat insulation effect, which can be a single material, or a plate with a heat insulating layer (not shown) can be used, and the heat insulating layer can be, for example, made of materials such as foam and Styrofoam. Made of interlayer to increase the effect of sunshade and heat insulation. The fixing parts 62 are connected between the board body 61 and the housing part 41 , can fix the board body 61 on the housing part 41 , and make the board body 61 and the tops of the heat dissipation fins 42 have a distance apart.

The area of the plate body 61 is greater than the maximum cross-sectional area of the upper case 4, and the upper case 4 is located within the range of the orthographic projection of the plate body 61. When the plate body 61 is fixed on the case part 41, it can completely block the direct light from above. The sunlight irradiates the upper casing 4 to reduce the temperature of the chamber 21, that is, the ambient temperature of the LED lamp group 3 during the day can be reduced, and the heat energy stored in the upper casing 4 and the chamber 21 can be reduced. affect the luminous efficiency of the LED 31 . When using the LED 31 for lighting at night, the heat generated by the LED 31 can be conducted through the metal shell portion 41 and the heat dissipation fins 42, and the air near the heat dissipation fins 42 can absorb the heat energy transmitted to the heat dissipation fins 42. The thermal energy is heated to form hot air. Since the plate body 61 is located adjacent to the top of the heat dissipation fins 42, the area between the plate body 61 and the heat dissipation fins 42 is easier to form uniformly distributed hot air, which can Quickly attract cold air to flow in. Moreover, since the cooling fins 42 are arranged in parallel, the cold air can enter the hot air area along the direction in which the cooling fins 42 are arranged, and convect with the hot air. That is, the cooling fins 42 cooperate with the plate body 61 to form a plurality of air ducts 7 , and the convection of cold and hot air in the air ducts 7 can accelerate the flow of hot air and greatly increase the heat dissipation rate.

The LED lamp set 3 includes an array of LEDs 31 and a circuit board 32 , and its assembly with the lamp housing device 2 can be accomplished using existing technology for assembling LED lamps, and the LEDs 31 are preferably those with high power. The light-emitting diode lamp 1 of the present utility model is suitable for being assembled with a light pole (not shown in the figure), and can be connected with an external power supply to provide outdoor lighting. Moreover, the technology of combining the light-emitting diode lamp 1 with the light pole is not the key point of the present utility model , can be completed with reference to existing technologies, and will not be described in detail here.

Referring to FIG. 4 and FIG. 5 , it is a second preferred embodiment of the lamp housing device of the outdoor LED lamp with high heat dissipation and the LED lamp having the lamp housing device of the present invention. The second preferred embodiment is substantially the same as the first preferred embodiment, but the upper case 4' of the second preferred embodiment has no heat dissipation fins, and the inner and outer surfaces of the upper case 4' are coated with high thermal conductivity permanent coating to increase the heat dissipation rate of the upper shell 4'. Moreover, the plate body 61 of the sun visor 6 has a distance from the upper casing 4', so that the area between the plate body 61 and the upper casing 4' is easier to form uniformly distributed hot air, and can quickly attract cold air. The inflow forms cold and hot air lateral convection, so the flow of hot air can be accelerated, and the heat dissipation rate can be greatly improved.

Referring to FIG. 6 and FIG. 7 , it is a third preferred embodiment of the lamp housing device of the outdoor LED lamp with high heat dissipation and the LED lamp with the lamp housing device of the present invention. The main components of the third preferred embodiment are substantially the same as those of the second preferred embodiment, except that the periphery of the plate body 61' of the sun visor 6' is curved, and a plurality of holes are formed in the middle area of the plate body 61'. A grid hole 611, there is an oblique baffle plate 612 in the middle of the grid hole 611, so that the sunlight cannot directly reach the upper casing 4", but the hot air formed between the plate body 61' and the upper casing 4" can diffuse through the grid hole 611 go out. In other words, evenly distributed hot air can be formed between the plate body 61' and the upper casing 4", which can quickly attract cold air to flow in, squeeze the hot air to rise, and then diffuse into the atmosphere through the grid hole 611 , can accelerate the diffusion of hot air.

To sum up the above, the lamp housing device of the present invention can block the direct sunlight on the upper housing by means of the sun visor, so as to reduce the ambient temperature of the LED lamp group during the daytime, and avoid heat energy from being stored in the upper housing and the chamber, which will affect the Luminous efficiency of light-emitting diodes. Moreover, the cooperation of the sun visor and the upper shell can accelerate the flow of hot air, which can greatly increase the heat dissipation rate.

Claims (12)

1. A light housing device for an outdoor light-emitting diode lamp with high heat dissipation, comprising: an upper shell and a light-permeable cover, the cover cooperates with the upper shell to form an accommodating A chamber for a light-emitting diode lamp group; it is characterized in that: the lamp housing device also includes a sun visor, the sun visor is arranged on the outer surface of the upper shell, and includes a plate body and a plurality of fixing parts, the fixing parts A piece is connected between the board and the upper case, and makes the board and the upper case have a distance. 2. The lamp housing device of an outdoor LED lamp with high heat dissipation as claimed in claim 1, wherein the area of the sun visor is larger than the maximum cross-sectional area of the upper case, and the upper case is located at within the range of the orthographic projection of the plate. 3 . The lamp housing device of an outdoor LED lamp with high heat dissipation as claimed in claim 1 , wherein the upper housing is made of metal material, and the surface is coated with a paint with high thermal conductivity. 4 . 4. The lamp housing device of an outdoor LED lamp with high heat dissipation as claimed in claim 1, wherein the upper housing comprises a housing part and a plurality of cooling fins formed on the outer surface of the housing part . 5 . The lamp housing device of an outdoor LED lamp with high heat dissipation as claimed in claim 1 , wherein the sun visor has a temperature insulating layer. 6 . 6. The lamp housing device of an outdoor LED lamp with high heat dissipation as claimed in claim 1, wherein a plurality of grid holes are formed on the sun visor. 7. An outdoor light-emitting diode lamp with high heat dissipation, comprising: a lamp housing device and a light-emitting diode lamp group, the lamp housing device includes an upper shell and a light-transmitting cover body, the cover body Cooperate with the upper housing to form a chamber, the LED lamp group is fixed on the upper housing and located in the chamber; the feature is that: the lamp housing device also includes a sun visor, the sun visor is arranged on the The outer surface of the upper case includes a board and a plurality of fixing parts, and the fixing parts are connected between the board and the upper case, and make the board and the upper case have a distance . 8. The outdoor light-emitting diode lamp with high heat dissipation as claimed in claim 7, wherein the area of the sun visor is larger than the maximum cross-sectional area of the upper case, and the upper case is located on the side of the plate. within the orthographic projection range. 9. The outdoor light-emitting diode lamp with high heat dissipation as claimed in claim 7, wherein the upper shell is made of metal material, and the surface is coated with a paint having a high surface lateral heat conduction effect. 10 . The outdoor LED lamp with high heat dissipation as claimed in claim 7 , wherein the upper casing comprises a casing portion and a plurality of cooling fins formed on the outer surface of the casing portion. 11 . 11. The outdoor LED lamp with high heat dissipation as claimed in claim 7, wherein the sun visor has a temperature insulating layer. 12. The outdoor LED lamp with high heat dissipation as claimed in claim 7, wherein a plurality of grid holes are formed on the sun visor.

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