CN203517709U - LED heat sink and LED street light - Google Patents

Abstract

The utility model relates to the technical field of LED lighting, in particular to an LED heat sink and an LED street lamp; comprising a substrate and a plurality of heat sink fins uniformly arranged on the substrate, the heat sink fins being perpendicular to the substrate, the heat sink fins being provided with a plurality of array through holes perpendicular to the heat sink fins, and a clamping portion being provided at the lower end of the substrate; the heat sink area of the substrate is increased by providing a plurality of heat sink fins, and in addition, the array through holes are provided so that air can be easily discharged and enter the heat sink, thereby accelerating the speed of heat exchange and improving the efficiency of heat discharge, so that the LED lamp always operates within a safe temperature range.

Description

LED heat sink and LED street light

technical field

The utility model relates to the technical field of LED lighting, in particular to an LED heat sink and an LED street lamp.

Background technique

LED is a light-emitting diode, which is a semiconductor solid-state light-emitting device. It uses a solid semiconductor chip as a light-emitting material. In the semiconductor, the excess energy is released through the recombination of carriers to cause photon emission, and directly emit red, blue, green and other colored lights. LED lighting products are lighting appliances manufactured using LEDs as light sources. In the context of the current global energy shortage worries rising again, saving energy is an important issue we face. In the field of lighting, the application of LED light-emitting products is attracting the attention of the world. As a new type of green light source product, LED, It must be the development trend of lighting technology, and the 21st century will be an era of new lighting sources represented by LEDs. LED is called the fourth-generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life, and small size. It can be widely used in various indications, displays, decorations, backlights, general lighting and urban night scenes.

There is no doubt that LED products have a broad market prospect, especially in the field of lighting. If LED light sources are widely used in the field of lighting, it will be a revolution in the history of human lighting. However, due to technical and other factors, it cannot be widely promoted at present. First of all, no matter what kind of LED products are facing waterproof and moisture-proof sealing problems, if not handled properly, it will directly affect the service life of LED products, and these protective measures will cause the ambient temperature around the LED lamp to rise; secondly, when the external ambient temperature After the rise, the internal resistance of the LED light source will decrease. If a regulated power supply is used for power supply, the working current of the LED will increase. When the rated working current exceeds its rated working current, it will affect the service life of the LED product. bad". Therefore, the heat dissipation problem of LED lamps, especially high-power LED lamps, is the main bottleneck restricting their wide application.

Especially for LED street lamps, due to the high efficiency of street lamps, LED street lamps generate more heat. If the heat cannot be dissipated in a timely and effective manner, the heat accumulated around the LED light source will cause the light source to decay rapidly and increase energy consumption, thereby affecting the life of the LED lamp. and stability.

Utility model content

The utility model provides an LED heat sink and an LED street lamp with the LED heat sink to solve the problem of unsatisfactory heat dissipation effect of the current LED street lamp.

In order to achieve the above functions, the technical solution provided by the utility model is:

An LED heat sink, comprising a substrate and several heat dissipation fins evenly arranged on the substrate, the heat dissipation fins are perpendicular to the substrate, and several heat dissipation fins are provided on the heat dissipation fins Vertical array through holes, the lower end of the substrate is provided with a locking part.

Preferably, the engaging portion is provided with an engaging groove.

Preferably, the heat dissipation fins have a thickness of 0.5mm˜1.5mm.

Preferably, the heat sink is made of aluminum alloy or red copper.

The utility model also provides an LED street lamp, the LED street lamp includes a cooling fin, and the cooling fin is any one of the above LED cooling fins.

The beneficial effects of the utility model are: an LED heat sink, comprising a base plate and a plurality of heat dissipation fins evenly arranged on the base plate, the heat dissipation fins are perpendicular to the base plate, and several heat dissipation fins are provided on the heat dissipation fins. An array of through holes perpendicular to the heat dissipation fins, the lower end of the substrate is provided with an engaging portion; the heat dissipation area of the substrate is improved by arranging a number of heat dissipation fins, and in addition, the air is easily discharged by arranging the array of through holes And into the heat sink, speed up the speed of heat exchange, improve the efficiency of heat discharge, so that the LED lights always work in a safe temperature range.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing 1, the utility model is further elaborated:

As shown in Figure 1, a LED heat sink includes a substrate 1 and several heat dissipation fins 2 evenly arranged on the substrate 1, the heat dissipation fins 2 are perpendicular to the substrate 1, and several heat dissipation fins are provided on the heat dissipation fins 2 The sheet 2 is perpendicular to the array of through holes 21 , and the lower end of the substrate 1 is provided with an engaging portion 3 . The arrangement of the array through holes 21 facilitates the flow of normal temperature air from the outside into the heat sink, and at the same time brings out the high temperature air inside the heat sink, thus speeding up the heat exchange of the heat sink and ensuring that the heat sink is within a safe temperature range. The engaging part 3 is provided with an engaging groove 31 , and there is a slightly protruding convex line in the engaging groove 31 , and the engaging groove 31 is used for mating connection with the lampshade.

In this embodiment, considering the heat dissipation performance and price, the material of the heat sink is preferably aluminum alloy. Of course, we can choose copper and other materials for the heat sink according to the needs of the product. In actual use, considering the processing cost and material cost, the thickness of the heat sink is preferably 0.5mm~1.5mm.

In the LED street lamp provided by the utility model, the heat sink of the above embodiment is preferably used as the heat sink of the LED street lamp.

The above-described embodiments are only preferred examples of the utility model, and are not intended to limit the scope of implementation of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent scope , should be included in the utility model patent application scope.

Claims (5)

1. a LED fin, it is characterized in that: comprise substrate (1) and be evenly arranged at several radiating fins (2) on described substrate (1), described radiating fin (2) is perpendicular to described substrate (1), on described radiating fin (2), offer the perpendicular array through-hole (21) of several and described radiating fin (2), the lower end of described substrate (1) is provided with holding section (3).

2. LED fin as claimed in claim 1, is characterized in that: on described holding section (3), offer slot (31).

3. LED fin as claimed in claim 1, is characterized in that: the thickness of described radiating fin (2) is 0.5mm～1.5mm.

4. LED fin as claimed in claim 1, is characterized in that: the material of described fin is aluminium alloy or red copper.

5. a LED street lamp, comprises fin, it is characterized in that: described fin is the LED fin described in claim 1 to 4 Arbitrary Term.

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