CN201795385U - A kind of LED street lamp with heat dissipation structure - Google Patents

Abstract

The utility model relates to a LED street lamp technical field, concretely relates to LED street lamp with heat radiation structure, it includes the lamp body and sets up in the end cover at lamp body both ends, be equipped with the LED mainboard in the lamp body, the lamp body is located including heat dissipation main part and cover the leaded light cover of heat dissipation main part, the heat dissipation main part include curved protection dustcoat with set up in the mounting panel of protection dustcoat internal surface, protection dustcoat with the mounting panel forms the cavity, the inside of cavity is equipped with radiating fin. The heat that the LED during operation produced at first transmits the mounting panel, then transmits heat to whole cavity by the mounting panel, and radiating fin can enlarge heat radiating area, still can transmit the heat of mounting panel to the protection dustcoat fast, and curved protection dustcoat surface area is favorable to thermal giving off greatly, and in addition, curved design makes the protection dustcoat be difficult for piling up the dust, even there is a small amount of dust also can be washed away by the rainwater.

Description

A kind of LED street lamp with heat dissipation structure

technical field

The utility model relates to the technical field of LED street lamps, in particular to an LED street lamp with a heat dissipation structure.

Background technique

LED lamps have the advantages of long life, energy saving, and good safety performance. They have been used more and more, and are expected to become the fourth-generation lighting source. At present, LEDs can only convert about 20% of the electrical energy into light energy, while the remaining 80% of the energy is converted into heat energy. If the heat dissipation problem is not solved properly, the heat will be concentrated in the chip with a small size, which will make the internal temperature of the chip even higher. The higher the temperature, the life of the LED will be reduced by half when the working temperature of the LED reaches 55 degrees Celsius, so the fundamental way to prolong the life of the LED is to improve its heat dissipation.

LED street lights are mainly composed of substrates, LED main boards installed on the substrates, and light guide covers. LED chips are fixed on the LED main boards. However, due to the imperfect heat dissipation system of LED street lights, the heat generated by LED chips is completely sealed in the substrate. The inside of the tube formed with the light guide cover cannot escape, which will inevitably cause the LED chip to be burned out due to excessive temperature. Later, someone added heat dissipation fins on the substrate, but dust is easy to accumulate on the heat dissipation fins, especially for LED street lights installed outdoors, a thick layer of dust will quickly accumulate in a short period of time, which will also cause LED The heat generated during work cannot be dissipated in time.

Contents of the invention

The purpose of the utility model is to provide an LED street lamp with a good heat dissipation effect and a good dustproof effect in view of the deficiencies in the prior art.

The utility model is achieved through the following technologies.

An LED street lamp with a heat dissipation structure, which includes a lamp body and end caps arranged at both ends of the lamp body. The lamp body is provided with an LED main board. The light cover, the heat dissipation body includes an arc-shaped protective cover and a mounting plate arranged on the inner surface of the protective cover, the protective cover and the mounting plate form a cavity, and the inside of the cavity is provided with cooling fins .

The mounting plate is arc-shaped, and the mounting plate protrudes to the outside of the cavity.

The mounting plate is provided with a mounting groove, and the LED main board is fixed in the mounting groove.

The heat dissipation fins are arc-shaped, and the heat dissipation fins are extended from the mounting plate to the protective outer cover.

Both ends of the heat dissipation body are provided with end caps.

A sealing ring is also provided between the end cover and the heat dissipation body.

The end cover is divided into a front end cover and a rear end cover. The rear end cover is provided with a power supply and a power supply fixing seat. The power supply is electrically connected to the LED main board. The power supply fixing seat, the The end cover and the sealing ring are sequentially fixed on the heat dissipation main body.

The power supply is fixed on the front side of the power supply fixing base, and a hoop is provided on the back side of the power supply fixing base.

The bottom surface of the rear end cover is provided with perforations.

The bottom surfaces of the front end cover and the rear end cover are respectively provided with cooling holes.

The beneficial effects of the utility model are: the LED street lamp with a heat dissipation structure, which includes a lamp body and end caps arranged at both ends of the lamp body, the lamp body is provided with an LED main board, and the lamp body includes a heat dissipation main body and a cover The light guide cover provided on the heat dissipation body, the heat dissipation body includes an arc-shaped protective cover and a mounting plate arranged on the inner surface of the protective cover, the protective cover and the mounting plate form a cavity, and the cavity The inside of the body is provided with cooling fins. The heat generated when the LED is working is first transferred to the mounting plate, and then the heat is transferred to the entire cavity by the mounting plate. The heat dissipation fins can expand the heat dissipation area, and can also quickly transfer the heat of the mounting plate to the protective cover. The arc-shaped protective cover The large surface area is conducive to the dissipation of heat. In addition, the curved design makes it difficult for the protective cover to accumulate dust. Even a small amount of dust can be washed away by rain.

Description of drawings

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

Fig. 2 is a schematic diagram of an exploded structure of the utility model.

Fig. 3 is a structural schematic diagram of the heat dissipation main body of the present invention.

Figure 1, Figure 2 and Figure 3 include:

1——LED Main Board 2——Heat Dissipation Main Body

3——Light guide cover 4——Protective cover

5——Mounting plate 6——Heating fins

7——Mounting groove 8——End cover

9——Sealing ring 10——Front end cover

11——Rear end cover cover 12——Power supply

13——power supply fixing seat 14——cuff

15——Perforation 16——Heating hole.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not limitations of the utility model.

As shown in Figure 1-3, an LED street lamp with a heat dissipation structure includes a lamp body and end caps arranged at both ends of the lamp body. The end caps are sleeved on both ends of the lamp body and further fixed by screws. The lamp body is provided with an LED mainboard 1, and the LED mainboard 1 is provided with LED chips. The lamp body includes a heat dissipation main body 2 and a light guide cover 3 covering the heat dissipation main body 2. The heat dissipation main body 2 is made of aluminum material. The heat dissipation main body 2 includes an arc-shaped protective cover 4 and a mounting plate 5 arranged on the inner surface of the protective cover 4. , the edge of the protective cover 4 is provided with a chute matching the edge of the light guide cover 3, the edge of the light guide cover 3 is provided with a clamping part, and the light guide cover 3 is snapped into the chute of the protective cover 4 through the clamping part to realize The clamping connection between the light guide cover 3 and the protective cover 4 further brings convenience for assembling the light guide cover 3 on the back cover.

The protective cover 4 and the mounting plate 5 form a cavity, and cooling fins 6 are arranged inside the cavity. The heat generated when the LED chip works is first transferred to the mounting plate 5, and then the heat is transferred to the entire cavity by the mounting plate 5. The heat dissipation fins 6 can expand the heat dissipation area, and can also quickly transfer the heat of the mounting plate 5 to the protective cover 4 , the large surface area of the arc-shaped protective cover 4 is conducive to the distribution of heat. In addition, the arc-shaped design makes the protective cover 4 difficult to accumulate dust, and even a small amount of dust can be washed away by rain.

The mounting plate 5 is arc-shaped, and the mounting plate 5 protrudes to the outside of the cavity. When the main board 1 provided with LEDs is fixed on the mounting plate 5, the arc design can expand the lighting range and make the light evenly dispersed.

The mounting plate 5 is provided with a mounting groove 7, and the LED main board 1 is fixed in the mounting groove 7. The shape of the mounting groove 7 matches the shape of the LED main board 1, and the LED main board 1 can be snapped into the mounting groove 7. Since the mounting groove of this embodiment There are multiple numbers of 7, so there is a certain gap between the mounting grooves 7, which is beneficial to the heat dissipation of the LED chips on the LED main board 1. The mounting groove 7 is provided with a threaded hole for screwing the LED main board 1, and the LED main board 1 is fixed in the mounting groove 7 through the threaded hole. Of course, the LED main board 1 can also be fixed in the mounting groove 7 by means of bonding or the like.

The heat dissipation fins 6 are arc-shaped, and the arc-shaped heat dissipation fins 6 can enlarge the heat dissipation area, and the number of the heat dissipation fins 6 is multiple. The cooling fins 6 are extended from the mounting plate 5 to the protective cover 4, and the heat generated by the LED chips can be quickly transmitted from the mounting plate 5 through the cooling fins 6 to the protective cover 4, and finally dissipated through the arc-shaped protective cover 4 . The protective cover 4, the mounting plate 5 and the cooling fins 6 are integrally formed, the process is simple, and the production efficiency is improved.

End caps 8 are provided at both ends of the heat dissipation body 2 . The shape of the end caps 8 is similar to that of the end surface of the heat dissipation body 2 , and openings are also provided at gaps corresponding to the heat dissipation fins 6 .

A sealing ring 9 is also provided between the end cover 8 and the heat dissipation body 2 . The shape of the sealing ring 9 is similar to that of the end cover 8 .

The end cover cover is divided into a front end cover cover 10 and a rear end cover cover 11. The rear end cover cover 11 is provided with a power supply 12 and a power supply fixing seat 13. The power supply 12 is electrically connected to the LED main board 1. The power supply fixing seat 13, the end cover 8, The sealing ring 9 is sequentially fixed to the heat dissipation body 2 by screws.

With the direction shown in Figure 2 being the front of the power supply holder 13, the front of the power supply holder 13 fixes the power supply 12, and the back side of the power supply holder 13 is provided with a hoop 14, and the hoop 14 is used to fix the rod.

The bottom surface of the rear end cover cover 11 is provided with a perforation 15, and the perforation 15 is passed through the rod during use, and is further fixed with a hoop 14, so that the utility model can be fixed to the support of the street lamp by using the perforation rod.

The bottom surfaces of the front end cover 10 and the rear end cover 11 are respectively provided with cooling holes 16 through which the heat inside the cavity can be dissipated.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (10)

1. A LED street lamp with a heat dissipation structure, which includes a lamp body and end caps arranged at both ends of the lamp body, the lamp body is provided with an LED main board, and it is characterized in that: the lamp body includes a heat dissipation main body and a cover arranged on The light guide cover of the heat dissipation body, the heat dissipation body includes an arc-shaped protective outer cover and a mounting plate arranged on the inner surface of the protective outer cover, the protective outer cover and the mounting plate form a cavity, and the cavity of the cavity is There are cooling fins inside. 2. The LED street lamp with heat dissipation structure according to claim 1, characterized in that: the mounting plate is arc-shaped, and the mounting plate protrudes to the outside of the cavity. 3 . The LED street lamp with heat dissipation structure according to claim 1 , wherein the mounting plate is provided with a mounting groove, and the LED main board is fixed in the mounting groove. 4 . 4. The LED street lamp with heat dissipation structure according to claim 1, wherein the heat dissipation fins are arc-shaped, and the heat dissipation fins are extended from the mounting plate to the protective cover. 5 . The LED street lamp with heat dissipation structure according to claim 1 , wherein end caps are provided at both ends of the heat dissipation body. 5 . 6 . The LED street lamp with heat dissipation structure according to claim 5 , wherein a sealing ring is further provided between the end cover and the heat dissipation main body. 7 . 7. The LED street lamp with heat dissipation structure according to claim 6, characterized in that: the end cover is divided into a front end cover and a rear end cover, and the rear end cover is provided with a power supply and a power supply The fixing seat, the power supply is electrically connected to the LED main board, and the power supply fixing seat, the end cover, and the sealing ring are sequentially fixed to the heat dissipation main body. 8 . The LED street lamp with heat dissipation structure according to claim 7 , wherein the power supply is fixed on the front side of the power supply fixing base, and a hoop is provided on the back side of the power supply fixing base. 8 . 9. The LED street lamp with heat dissipation structure according to claim 7, characterized in that: the bottom surface of the rear end cover is provided with perforations. 10. The LED street lamp with heat dissipation structure according to claim 7, characterized in that: the bottom surfaces of the front end cover and the rear end cover are respectively provided with heat dissipation holes. the

Images