CN201539776U - LED street lamp - Google Patents

Abstract

The utility model discloses an LED street lamp, comprising a transparent lampshade, a substrate arranged in the lampshade and an LED light emitting diode fixed on the front side of the substrate, wherein the LED light emitting diodes are multiple and form an LED array, which is sealed between the substrate and the lampshade, an air inlet is provided at the bottom of the lampshade, an air outlet is provided at the top of the lampshade, a heat pipe is fixed at the back side of the substrate, and a plurality of heat dissipation fins are arranged in parallel on the heat pipe; the lampshade of the utility model seals the LED and is waterproof, dustproof and moisture-proof; the heat dissipation fins are sleeved on the protruding section in a direction perpendicular to the horizontal, and both the upper and lower sides are empty, which greatly improves the self-cleaning ability of the radiator and ensures the heat dissipation efficiency of the radiator in long-term use; the heat dissipation fins are separated from the LED heat source and will not be heated again, which improves the heat dissipation efficiency and can quickly transfer the heat emitted by the LED lamp group.

Description

A kind of LED street light

technical field

The utility model relates to a lighting fixture, in particular to an LED street lamp.

Background technique

In recent years, LED lights have achieved rapid development and are gradually entering the field of general lighting. Compared with traditional incandescent tungsten bulbs and fluorescent lamps, LED lamps have the advantages of small size, low calorific value, and low power consumption, and can be started at low voltage and low current, with fast response speed, high-frequency operation, and long service life. Therefore, it is called "green lighting source". The LED light assembly can be used with different numbers and powers of LED light-emitting diodes and matched with different lampshades to become different lighting lamps, such as street lights, tunnel lights, projection lights, underwater lights, mine road lights, and indoor and outdoor lights. This kind of LED lamp cannot take into account both waterproof performance and heat dissipation, and the general performance is not strong enough.

Utility model content

The purpose of the utility model is to provide an LED street lamp with good waterproof performance and good heat dissipation effect.

The technical solution adopted by the utility model to solve the technical problem is: an LED street lamp, including a transparent lampshade, a substrate arranged in the lampshade, and an LED light-emitting diode fixed on the front of the substrate. The LED array is formed and sealed between the substrate and the lampshade. There are air inlet holes at the bottom of the lampshade, and air outlet holes at the top of the lampshade. A heat pipe is fixed on the back of the substrate, and multiple heat dissipation fins are arranged in parallel on the heat pipe.

A cover plate is arranged on the top of the lampshade, and the air outlet is a gap between the lampshade and the cover plate.

The heat pipe includes a fixed section on the base plate and a protruding section protruding from the base plate to one side or both sides. The heat dissipation fins are placed on the protruding section in a direction perpendicular to the horizontal. There are cooling spaces on the upper and lower sides.

The protruding section forms a certain angle with the fixed section and extends upward. Alternatively, the protruding section is parallel to the fixed section, and a vertical connecting section is connected between the protruding section and the fixed section.

The beneficial effects of the utility model are: the lampshade seals the LED, which is waterproof, dustproof and moistureproof; The self-cleaning ability of the radiator ensures the efficiency of heat dissipation in the long-term use of the radiator. The heat dissipation fins are separated from the LED heat source and will not be reheated, which improves the efficiency of heat dissipation and can quickly transfer the LED lights of heat.

Illustration

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model first embodiment;

Fig. 2 is the structural representation of the second embodiment of the utility model;

Fig. 3 is a schematic structural view of the third embodiment of the utility model;

Fig. 4 is a schematic structural view of the fourth embodiment of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

The utility model discloses an LED street lamp, which comprises a transparent lampshade 4, a substrate 1 arranged in the lampshade 4, and LED light-emitting diodes fixed on the front of the substrate 1. The LED light-emitting diodes are multiple and form an LED array, sealed Between the substrate 1 and the lampshade 4, the bottom of the lampshade 4 is provided with an air inlet 5, the top of the lampshade 4 is provided with an air outlet 6, the back of the substrate 1 is fixed with a heat pipe 2, and a plurality of cooling fins 3 are arranged on the heat pipe 2 in parallel. The substrate 1 is an aluminum plate, and the heat pipe 2 is a copper pipe.

As a first embodiment, as shown in FIG. 1 , the top of the lampshade 4 is provided with a cover plate 7 , the air outlet 6 is a gap between the lampshade 4 and the cover plate 7 , and the heat pipe 2 includes a fixing plate located on the base plate 1 . section and the protruding section that protrudes from the substrate 1 and extends to one side, the fixed section and the protruding section are of an integrated structure, the protruding section and the fixed section form a certain angle, and extend upwards, and the heat dissipation fins 3 are vertical to the horizontal The direction sleeve is placed on the protruding section, and the upper and lower sides of the heat dissipation fin 3 are provided with heat dissipation spaces, that is, the unilateral flying wing structure.

As a second embodiment, as shown in FIG. 2 , the top of the lampshade 4 is provided with a cover plate 7 , the air outlet 6 is a gap between the lampshade 4 and the cover plate 7 , and the heat pipe 2 includes a fixing plate located on the base plate 1 . The section 21 and the protruding section 22 extending outward from the base plate 1 on both sides of the fixed section 21 respectively. The heat dissipation fins 3 are placed on the protruding section 22 in a direction perpendicular to the horizontal, and heat dissipation spaces are provided on the upper and lower sides of the heat dissipation fins 3 , that is, the double-sided flying wing structure.

As a third embodiment, as shown in FIG. 3 , the top of the lampshade 4 is provided with a cover plate 7 , the air outlet 6 is a gap between the lampshade 4 and the cover plate 7 , and the heat pipe 2 includes a fixing plate located on the base plate 1 . section and a protruding section that protrudes from the base plate 1 and extends to one side, the protruding section is parallel to the fixed section, and a vertical connecting section is connected between the protruding section and the fixed section, and the fixed section, the protruding section and the connecting section are integrated structure, the heat dissipation fins 3 are placed on the protruding section, that is, the single-sided flying wing structure.

As a fourth embodiment, as shown in FIG. 4 , the top of the lampshade 4 is provided with a cover plate 7 , the air outlet 6 is a gap between the lampshade 4 and the cover plate 7 , and the heat pipe 2 includes a The fixed section on the top and the protruding section extending outward from the base plate 1 on both sides of the fixed section, the protruding section is parallel to the fixed section, and a vertical connecting section is connected between the protruding section and the fixed section, the fixed section, the protruding section It is an integral structure with the connecting section, and the heat dissipation fins 3 are placed on the protruding section, that is, the double-sided flying wing structure.

When the utility model is in use, the heat emitted by the LED street lamp is conducted to the aluminum plate, and then to the left and right heat dissipation fins through the heat pipe. The flakes are vertically located on the left and right sides of the aluminum plate, which is convenient for waterproof and dustproof sealing of the LED and the aluminum sheet without affecting heat dissipation; since there is sufficient heat dissipation space on the upper and lower sides of the heat dissipation fins, and they extend to both sides and are exposed, It is convenient for ventilation, and the self-cleaning of the aluminum plate and cooling fins can help cleaning with the help of the wind formed by the air flow.

There is an air inlet hole at the bottom of the lampshade, and an air outlet hole at the top of the lampshade. When the substrate and LED heat up, the surrounding air rises when heated, and the cold air outside flows in from the air inlet hole to supplement and form convection, which can quickly transfer the heat emitted by the LED lamp group. heat.

The gap between the lampshade 4 and the cover plate 7 can prevent outside water from flowing into the cover while containing air to discharge.

What is described above is only the preferred embodiment of the present utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the premise of the inventive concept of the present invention, some deformations and improvements can also be made, and these all belong to Protection scope of the present utility model.

Claims (5)

1. A kind of LED street lamp, comprise transparent lampshade (4), be arranged on the substrate (1) in the lampshade (4) and be fixed on the LED light-emitting diode of substrate (1) front, described LED light-emitting diode has a plurality of parallel An LED array is formed, sealed between the substrate (1) and the lampshade (4), and is characterized in that: the bottom of the lampshade (4) is provided with air inlet holes (5), the top of the lampshade (4) is provided with air outlet holes (6), and the substrate ( 1) A heat pipe is fixed on the back, and a plurality of cooling fins (3) are arranged in parallel on the heat pipe (2). 2. An LED street lamp according to claim 1, characterized in that a cover plate (7) is provided on the top of the lampshade (4), and the air outlet hole (6) is formed by the lampshade (4) and the cover plate (7). ) between the gaps. 3. The LED street lamp according to claim 2, characterized in that, the heat pipe (2) includes a fixed section located on the substrate (1) and protrudes from the substrate (1) to one side or both sides The extended protruding section, the heat dissipation fins (3) are placed on the protruding section in a direction perpendicular to the horizontal, and the upper and lower sides of the heat dissipation fins (3) are provided with heat dissipation spaces. 4. The LED street lamp according to claim 3, wherein the protruding section forms a certain angle with the fixed section and extends upward. 5. The LED street lamp according to claim 3, wherein the protruding section is parallel to the fixed section, and a vertical connecting section is connected between the protruding section and the fixed section.

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