CN204806345U - LED lamp heat abstractor - Google Patents

Abstract

The utility model provides a heat dissipation device for an LED lamp, which includes a light-transmitting glass cover, a reflector, an LED light source, a power supply box and a main body shell. cavity, the rear side of the main body shell is integrally die-casted with wavy heat dissipation fins; the bottom surface of the light source accommodation cavity on the front side of the main body shell is fixed with a heat conduction sheet seat, and an LED light source and heat conduction sheet are installed on the plane of the heat conduction sheet seat The bottom surface of the seat is press-contacted with a heat conductor or heat conduction sheet pressed on the main shell of the bottom surface of the light source accommodating cavity; the bottom surface of the light source accommodating cavity is integrally die-casted with a slot that is convenient for pressing and installing the heat conductor or \and heat conduction sheet, through integral die-casting The formed main body shell and fast heat dissipation heat conductor or \ and heat conduction sheet can effectively reduce the production cost, and quickly export the heat generated by the LED light source to each part of the heat dissipation fin, reduce the working temperature of the LED light source, and prolong the service life.

Description

LED light cooling device

【Technical field】

The utility model relates to semiconductor lighting technology, in particular to a heat dissipation device for an LED lamp.

【Background technique】

Most of the traditional floodlights use tungsten filament bulbs, mercury lamps, iodine-tungsten lamps or high-pressure sodium lamps with a power of about 400-2000W as the light source. Pollution is serious, and the color effect is unsatisfactory. At present, with the development of science and technology, LED light sources are considered as the fourth generation of lighting sources. LED light sources have been widely used in various lighting fields due to their advantages such as high luminous efficiency, low power consumption, no need for high voltage, and high safety. In the application of street lamps, it has become an indispensable lighting tool for urban nightlife. Generally, street lamps need to work for a long time, even in severe weather such as storms, rain, and snow. There are clear requirements, and the LED light source meets the above requirements. However, the higher the power of the LED light source, the greater the calorific value, especially due to the lack of heat dissipation of the LED light source, the LED light source often works at a temperature of 80°C, and the luminous efficiency is often only 70%. ~80%, working for a long time will easily lead to color decay of the LED light source; in severe cases, the temperature inside the LED light source will be too high, resulting in burning circuit boards, lighting chips or other electronic components, which seriously shortens the working life of the LED light source.

【Content of utility model】

The utility model provides an LED lamp cooling device with simple structure, convenient installation, small size, fast heat dissipation, low hot spot temperature, effectively delaying LED light decay time, improving luminous efficiency and reducing production cost.

In order to realize above-mentioned utility model purpose, the technical scheme that the utility model adopts is:

LED lamp cooling device, including light-transmitting glass cover, reflector, LED light source, power supply box and main body shell. The light source accommodation cavity, the rear side of the main body shell is integrally die-casted with wavy heat dissipation fins to facilitate the rapid dissipation of the heat generated by the LED light source; the bottom surface of the light source accommodation cavity on the front side of the main body shell is fixed with a heat conducting sheet seat, and the heat conducting sheet The LED light source electrically connected to the power supply box is installed on the plane of the seat, and the bottom surface of the heat conduction sheet seat is press-contacted with the main shell that is embedded in the bottom surface of the light source housing cavity to quickly export the heat generated by the LED light source to each part of the heat dissipation fin. The heat conductor or heat conduction sheet; the bottom surface of the light source housing cavity of the main body shell is integrally die-casted with a slot for the installation of the heat conduction body or \and the heat conduction sheet, and the slot is formed by at least two "eight" shapes The outer half-surrounding arrangement is superimposed sequentially, or the arrangement is divergent from the heat conduction sheet seat to the surroundings in a plurality of straight lines.

Preferably, the heat conductor, the heat conduction sheet and the bottom surface of the light source accommodation cavity corresponding to the heat conduction sheet seat are integrally die-casted to protrude to the rear side with a certain thickness to facilitate the arrangement of the raised portion of the embedding groove.

Preferably, the heat conductor is a copper heat pipe.

Preferably, the heat conduction fins are strip-shaped copper fins.

Preferably, the copper heat pipe is also filled with a heat conducting agent that facilitates the rapid conduction of heat generated by the LED light source to various parts of the heat dissipation fins.

The beneficial effects of the utility model are:

The utility model adopts the integral die-casting molding of the main body shell, the LED light source installation cavity and the heat dissipation structure, which have high structural strength and good sealing effect, thereby saving raw materials and effectively reducing product production costs; The one-piece die-casting is equipped with slots that are convenient for pressing and installing heat conductors or \and heat conduction sheets. The slots are arranged in a sequence of at least two "eight" shapes from the inside to the outside, or are surrounded by heat conduction sheets in a plurality of straight lines. The seat is set to diverge around; and the heat conductor, or heat conduction sheet, or the combination of heat conduction body and heat conduction sheet is covered in the slot, that is, according to the heat dissipation requirements, all heat conductors can be installed in the slot, or all heat conduction sheets can be installed in the slot. Or mix and match heat conductors and heat conduction fins in the slots; in this way, heat conductors and heat conduction fins can efficiently and quickly export the heat generated by the LED light source to various parts of the external heat dissipation fins on the lower side of the main shell, and the heat dissipation fins are wavy. Structure, there are several channels for ventilation in the direction of the vertical fins, which is conducive to natural heat dissipation and air convection, accelerates the heat dissipation effect, greatly reduces the working temperature of the LED light source, and keeps the working temperature of the LED light source below 50°C for a long time. The temperature and luminous efficiency are increased to more than 95%, which greatly enhances the floodlight effect and can be used in various occasions. At the same time, it can effectively delay the color decay of the LED light source, prolong the service life of the LED light source, and increase the safety performance and overall service life of the entire lamp.

At the same time, the LED light source can be mounted with single-color light-emitting diode components (LEDs), or three-in-one color light-emitting diode components (LEDs). Brilliant colors, greatly enhance the light effect.

【Description of drawings】

Fig. 1 is a schematic diagram of the explosion structure of Embodiment 1 of the utility model;

Fig. 2 is an enlarged top view schematic diagram of a main body shell of an embodiment of the utility model having a double "eight"-shaped slot structure and a raised portion with a certain thickness protruding to the rear side to facilitate the placement of slots;

Fig. 3 is an enlarged schematic diagram of the cross-sectional structure of the main body shell in Fig. 2;

Fig. 4 is a three-dimensional enlarged schematic view of the main body shell in Fig. 2;

Fig. 5 is an enlarged schematic top view of the main body shell of the second embodiment of the present invention having an arc scattering distribution embedded groove structure.

【Detailed ways】

Embodiment one

The LED light heat dissipation device, as shown in Figures 1 to 4, includes a light-transmitting glass cover 1, a reflector 2, an LED light source 3, a power supply box 4, and a main body shell 5. The main body shell 5 is formed by integral die-casting of aluminum profiles, and the main body The front side of the housing 5 is integrally die-casted with a light source accommodation chamber 50 for easy installation of the LED light source 3 and the reflector 2, and the edge of the main body housing around the light source accommodation chamber 50 is integrally die-casted with an assembly groove 51 for sealing and fixing with the light-transmitting glass cover 1 , wherein, the assembly groove 51 is a double-groove structure; the assembly groove 51 of the main body shell 5 is also installed with a waterproof rubber ring 6 for sealing connection with the light-transmitting glass cover 1; the power box 4 is installed in the light source of the main shell In the cavity 50, when the LED light source adopts higher power, the power supply box 4 is arranged on the rear side of the main body shell to facilitate better heat dissipation; a U-shaped bracket 7 for fixing the lamp body is also provided on both sides of the main body shell 5.

Continuing as shown in Figures 1 to 4, the rear side of the main body shell 5 is integrally die-casted with wavy heat dissipation fins 52 that facilitate the rapid dissipation of the heat generated by the LED light source 3; The heat conduction sheet seat 8 is fixed on the top, and the LED light source 3 electrically connected to the power supply box 4 is installed on the plane of the heat conduction sheet seat 8. The bottom surface of the heat conduction sheet seat 8 is press-contacted with the main body shell 5 that is embedded in the bottom surface of the light source accommodation cavity 50. The heat conductor 9 and the heat conduction sheet 10 are used to quickly export the heat generated by the LED light source to the various parts of the heat dissipation fins 52, wherein the heat conductor 9 is a copper heat pipe, and the copper heat pipe is filled with the heat generated by the LED light source. The liquid mixed heat conduction agent that is quickly exported to each part of the heat dissipation fin 52, the heat conduction fin 10 is a copper strip heat sink; the bottom surface of the light source accommodation cavity 50 of the main body shell 5 is integrally die-casted to facilitate the installation of the heat conductor 9 and the heat conduction The slot 53 of the sheet 10 is arranged in two "eight" shapes that are stacked and semi-surrounded sequentially from the inside to the outside, and the heat conductor 9 is embedded and pressed in the "eight" shaped groove at the center of the slot 53. The heat conducting sheets 10 are respectively embedded and filled in the "eight" shaped grooves on both sides of the heat conducting body 9 . Corresponding to the "eight"-shaped embedding groove 53 of the heat conductor 9, the bottom surface of the light source receiving chamber 50 corresponding to the heat conductor 9 and the heat conduction sheet seat 8 is integrally die-cast and formed to protrude to the rear side with a certain thickness to facilitate the arrangement of the embossment of the embedding groove. Section 54.

The bottom surface of the heat-conducting sheet seat is press-contacted with a heat-conducting body or heat-conducting sheet that is embedded in the main body shell on the bottom surface of the light source housing cavity and is used to quickly export the heat generated by the LED light source to each part of the heat dissipation fin; the light source housing cavity of the main body shell The bottom surface is integrally die-casted with slots that are convenient for pressing and installing heat conductors or \and heat conduction sheets. The slots are arranged in a sequence of at least two "eight" shapes from the inside to the outside, or arranged in a plurality of straight lines. It is arranged to diverge from the heat conduction sheet seat to the surroundings.

Embodiment two

Wherein, as shown in Fig. 5, the difference from the arrangement of the slot 53 on the main body shell 5 in Figs. 9 is embedded in the three linear grooves in the center of the embedded groove 53, and the heat conduction sheet 10 is respectively embedded in the two linear grooves on both sides of the heat conductor 9, which is also convenient for the heat generated by the LED light source to be quickly exported to the heat dissipation fins parts of the film.

The heat conductor 9 and the heat conduction sheet 10 of the utility model are covered with different shapes of embedded grooves, and efficiently and quickly export the heat generated by the LED light source to each part of the heat dissipation fins with a wave-shaped structure outside the lower side of the main body shell, and at the same time the heat dissipation fins There are several channels for ventilation in the vertical direction of the fins, which greatly facilitates natural heat dissipation and air convection, accelerates the heat dissipation effect, greatly reduces the working temperature of the LED light source, and keeps the working temperature of the LED light source below 50°C for a long time. The working temperature and luminous efficiency are increased to more than 95%, which greatly enhances the floodlight effect and can be used in various occasions. At the same time, it effectively delays the color fading of the LED light source, prolongs the service life of the LED light source, and increases the safety performance and overall service life of the entire lamp. .

The above-described embodiment is only a preferred embodiment of the present utility model, and is not intended to limit the scope of implementation of the present utility model. The shape of the groove is except the situation enumerated in the specific embodiment; The equivalent changes made by the principle should all be covered within the protection scope of the present utility model.

Claims (5)

1. LED light heat dissipation device, including light-transmitting glass cover, reflector, LED light source, power supply box and main body shell, characterized in that: The main body shell is formed by integral die-casting of aluminum profiles. The front side of the main body shell is integrally die-casted with a light source accommodation cavity for easy installation of LED light sources and reflectors. to the cooling fins; The bottom surface of the light source accommodation chamber at the front side of the main body shell is provided with a heat conduction sheet seat fixed on the plane of the heat conduction sheet seat is installed with an LED light source electrically connected to the power supply box, and the bottom surface of the heat conduction sheet seat is press-contacted and embedded in the light source accommodation chamber. The main shell on the bottom surface is used to quickly export the heat generated by the LED light source to the heat conductor or heat conduction sheet of each part of the heat dissipation fin; The bottom surface of the light source housing chamber of the main body shell is integrally die-casted with a slot for the installation of heat conductors or \and heat conduction sheets. The slots are stacked and semi-surrounded by at least two "eight" shapes from the inside to the outside. set, or set in a plurality of straight lines diverging from the heat conduction sheet seat to the surroundings. 2. The heat dissipation device for LED lamps according to claim 1, characterized in that, the bottom surface of the light source accommodation chamber corresponding to the heat conductor, the heat conduction sheet and the heat conduction sheet seat is integrally die-cast and formed to protrude to the rear side with a certain thickness to facilitate the layout of embedding grooves of the bulge. 3. The LED lamp heat dissipation device according to claim 1 or 2, characterized in that, the heat conductor is a copper heat pipe. 4. The heat dissipation device for LED lamps according to claim 1 or 2, characterized in that, the heat conducting fins are strip-shaped copper fins. 5 . The heat dissipation device for LED lamps according to claim 3 , wherein the copper heat pipe is also filled with a heat conducting agent that facilitates the heat generated by the LED light source to be quickly exported to various parts of the heat dissipation fins. 6 .