CN209042165U - A LED street light with high heat dissipation efficiency and waterproof function - Google Patents

Abstract

The utility model relates to road lighting fields, particularly relate to a kind of radiating efficiency height and the LED street lamp with waterproof action, include bracket, lamp housing, cover board, LED lamp panel and shells of lenses.The lamp housing is connected to the other end of the bracket with respect to column, and lamp housing is opening down.One end of the cover board is rotatablely connected in lamp housing bottom opening, and the other end and the lamp housing of cover board are detachably connected.The shells of lenses is assemblied in cover board bottom, and the LED lamp panel spiral locking is in cover board bottom surface and is located in the closed cavity of shells of lenses and cover board formation.Cover board top surface is equipped with several fin plates to raise upward, the lamp housing two sides are equipped with corresponding and perforative air hole, air hole is corresponding with the gap of adjacent two fin plate, make the Efficient air of convection current takes away the heat of fin plate from the gap between adjacent two fin plate, to further improve radiating efficiency.The position that two sides in lamp housing correspond to air hole is equipped with baffle, which can effectively stop rainwater, play the role of waterproof.

Description

A LED street light with high heat dissipation efficiency and waterproof function

technical field

The utility model relates to the field of road lighting, in particular to an LED street lamp with high heat dissipation efficiency and waterproof function.

Background technique

Since the light emitted by the LED light source is unidirectional and has no light diffusion, the secondary optical design is usually carried out at the front end of the light source, that is, a lens is installed at the front end of the light source, so that the light emitted by the LED has a diffusion effect. . In terms of road lighting, LED lamps are gradually replacing incandescent lamps into the streets. Most of the current LED street lamps use radiators with exposed fin plates. It is easy to be corroded by acidic substances in rainwater and affects the heat dissipation performance, resulting in a significant reduction in the light efficiency of LED street lamps, shortened service life, and more energy consumption.

SUMMARY OF THE INVENTION

The utility model provides an LED street lamp with high heat dissipation efficiency and waterproof function, so as to overcome the problem of low heat dissipation efficiency of the existing LED street lamp.

The utility model adopts the following technical scheme: an LED street lamp with high heat dissipation efficiency and waterproof function, including a bracket fixedly connected to the street lamp column, and characterized in that it also includes a lamp shell, a cover plate, an LED lamp board and a lens shell , the lamp shell is a shell with an opening, the lamp shell is connected to the other end of the bracket opposite to the upright column, and the opening of the lamp shell faces downward; one end of the cover plate is rotatably connected to the bottom opening of the lamp shell, and the cover plate The other end of the LED is detachably connected to the lamp housing; the lens housing is assembled at the bottom of the cover plate, and the LED lamp board is screw-locked on the bottom surface of the cover plate and located in the airtight cavity formed by the lens housing and the cover plate; the top surface of the cover plate There are several upwardly protruding fin plates, the two sides of the lamp housing are provided with corresponding and penetrating ventilation holes, and the two sides of the lamp housing are provided with downwardly protruding baffles at the positions corresponding to the ventilation holes; when After the cover plate is fixed on the lamp housing, the fin plate is located between the two baffle plates, there is a gap between the bottom surface of the baffle plate and the top plane of the cover plate, and the cover plate is arranged at the position between the baffle plate and the edge of the cover plate. There is a drip groove running through to the bottom.

As a further improvement, the connecting lines between the fin plates and the ventilation holes at both ends of the lamp housing are parallel, and the gap between the two fin plates also corresponds to the ventilation holes.

As a further improvement, there is an inwardly recessed accommodating groove in the lens housing, and the accommodating groove is used to place the driver of the LED light board, and the power cable for connecting the driver to the power source is protruded through the payout hole provided on the cover plate. .

As a further improvement, a threaded hole is provided in one end of the lamp housing opposite to the upright column, the threaded hole is screwed with a bolt, the cover plate is provided with a mounting hole corresponding to the threaded hole, and the bolt is connected by the mounting hole. Thread to screw-lock connection with threaded holes.

As a further improvement, the LED light plate and the cover plate are bonded by thermally conductive silicone grease, and the four corners are locked by screws.

It can be seen from the above description of the structure of the present utility model that compared with the prior art, the present utility model has the following advantages: the present utility model is provided with a number of fin plates on the cover plate for fixing the LED lamp board, so as to increase the contact between the cover plate and the air The area is convenient for the heat dissipation of the LED light board. After the cover plate is closed at the opening of the casing, the fin plate is located in the casing, which can effectively prevent the fin plate from being eroded by rainwater and cause a decrease in heat dissipation performance. The two sides of the casing are also provided with vertically downward baffles at the positions of the ventilation holes. The gap between the bottom surface of the baffle and the top plane of the cover plate is convenient for simultaneous circulation. The structure of the baffle can block rainwater. Effectively prevent rainwater from sloping into the lamp housing from the ventilation holes to erode the fin plate, and the blocking of the baffle can make the rainwater fall to the drip grooves along each side of the cover plate and flow out of the lamp housing, which can prevent a large amount of rainwater from accumulating in the lamp housing. Inside the lamp housing. At the same time, there are corresponding ventilation holes on both sides of the shell, which correspond to the gap between the two adjacent fin plates, which play a role in disturbing the flow, so that the convective air can be more efficiently passed between the two adjacent fin plates. The gap takes away the heat of the fin plate, so that the heat dissipation efficiency can be further improved.

Description of drawings

Fig. 1 is a schematic structural diagram of the utility model connected to a street lamp column.

FIG. 2 is a schematic structural diagram of a top view when the cover plate is opened.

FIG. 3 is a schematic structural diagram of a bottom viewing angle when the cover plate is opened.

FIG. 4 is a schematic structural diagram of a locking connection between a cover plate and a lamp housing.

FIG. 5 is a schematic cross-sectional view of the internal structure of the lamp housing.

Detailed ways

The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 4 , an LED street lamp with high heat dissipation efficiency and waterproof function includes a bracket 2 , a lamp housing 3 , a cover plate 4 , an LED lamp plate 6 and a lens housing 5 . The bracket 2 has an L-shaped structure, and one end of the bracket 2 is locked on the upright column 1 of the street lamp by screws, and the other end of the bracket 2 is also locked and connected with the lamp housing by screws 7 . The lamp housing 3 is a housing with an opening, and the lamp housing 3 is connected to the bracket 2 in a state where the opening faces downward. One end of the cover plate 4 is rotatably connected to the opening at the bottom of the lamp housing 3. Specifically, a pin shaft can be inserted between the cover plate 4 and the lamp housing 3 for connection, so as to realize the flip of the cover plate 4 relative to the lamp housing 3. . The lamp housing 3 is provided with a threaded hole (not shown in the figure) at the other end opposite to the upright column 1. The threaded hole is screwed with a bolt 7, and the cover plate 4 is provided with a mounting hole 43 corresponding to the threaded hole. The bolts 7 can be threaded through the installation holes 43 to be screw-locked with the threaded holes, so as to realize the detachable connection between the other end of the cover plate 4 and the lamp housing 3 .

As shown in FIGS. 2 to 5 , two sides of the lamp housing 3 are provided with corresponding and penetrating ventilation holes 31 , and two sides of the lamp housing 3 are provided with downwardly protruding baffles at the positions corresponding to the ventilation holes 31 32. The positions of each side of the cover plate 4 near the edge are provided with drip grooves 42 running through to the bottom, and the drip grooves 42 on both sides of the cover plate 4 are arranged between the baffle 32 and the edge of the cover plate 4, and are opposite to the edge of the cover plate 4. below the baffle 32 . The top surface of the cover plate 4 is provided with a plurality of upwardly protruding fin plates 41. Preferably, the cover plate 4 and the fin plates 41 are formed by a casting process using aluminum materials at one time. Increase the area of the cover plate 4 in contact with the air. When the cover plate 4 and the lamp housing 3 are connected, there is a gap between the bottom surface of the baffle plate 32 and the top plane of the cover plate 4, which can facilitate the circulation of air; and after the cover plate 4 and the lamp housing 3 are fixedly connected, the fin plate 41 Parallel to the connecting line of the ventilation holes 31 at both ends of the lamp housing 3 , the gap between the two adjacent fin plates 41 can be made to correspond to the ventilation holes 31 .

Continuing to refer to FIGS. 2 to 5 , the lens shell 5 is assembled on the bottom of the cover plate 4 by means of screw locking, and the LED light board 6 is located in the airtight cavity formed by the lens shell 5 and the cover plate 4 , and The LED light board 6 and the bottom of the cover board 4 are bonded by thermal grease, and at the same time, the four corners of the LED light board 6 are connected to the bottom of the cover board 4 through screws. The thermally conductive silicone grease can effectively transfer the heat generated by the LED lamp board 6 to the cover plate 4 , and dissipate the heat through a plurality of vertically upward fin plates 41 , thereby improving the heat dissipation efficiency. The ventilation holes 31 on both sides of the lamp housing 3 can form air convection, so that the heat transferred to the fin plate 41 can be dissipated, thereby realizing the heat dissipation of the LED lamp plate 6 .

As shown in FIGS. 3 to 5 , the lens housing 5 is provided with a downward groove 51 corresponding to each lamp bead 61 of the LED light board 6 , and the lens housing 5 is also provided with a downwardly recessed accommodation The slot 52 is used to place the driver of the LED light board 6 (not shown in the figure), and the power cable connecting the driver to the power source is passed through the cable hole 44 provided on the cover plate 4, and the cable is released at the same time. A sealing ring can also be provided at the hole 44 . The above structure plays a role of sealing, preventing dust from entering between the cover plate 4 and the lens housing 5 and eroding the LED lamp board 6 .

As shown in FIG. 5 , after the cover 4 is fixed to the lamp housing 3 , the fins 41 are located between the two baffles 32 , and there is a gap between the bottom surface of the baffle 32 and the top plane of the cover 4 . At this time, the structure of the baffle 32 can play a role in blocking rainwater, effectively preventing the rainwater from entering the lamp housing 3 from the ventilation holes 31 and eroding the fin plate 41. The side drip grooves 42 flow out of the lamp housing 3 to prevent a large amount of rainwater from accumulating inside the lamp housing 3 . In addition, the gap between the bottom surface of the baffle plate 32 and the top plane of the cover plate 4 can keep the ventilation holes 31 at both ends of the lamp housing 3 to keep air circulation, and the gap between the two adjacent fin plates 41 corresponds to the ventilation holes 31. , play the role of turbulence, so that the convective air can take away the heat of the fin plate 41 from the gap between the two adjacent fin plates 41 more efficiently, so that the heat dissipation efficiency can be further improved.

The above are only specific embodiments of the present utility model, but the design concept of the present utility model is not limited to this, and any non-substantial changes to the present utility model by using this concept shall be regarded as acts that violate the protection scope of the present utility model.

Claims (5)

1. A LED street lamp with high heat dissipation efficiency and waterproof effect, comprising a bracket fixedly connected to a street lamp column, characterized in that: also comprising a lamp housing, a cover plate, an LED lamp panel and a lens housing, and the lamp housing is A shell with an opening, the lamp shell is connected to the other end of the bracket opposite to the upright column, and the opening of the lamp shell faces downward; one end of the cover plate is rotatably connected to the bottom opening of the lamp shell, and the other end of the cover plate is connected to the lamp shell. Removable connection; the lens shell is assembled at the bottom of the cover plate, the LED light board is screw-locked on the bottom surface of the cover plate and located in the airtight cavity formed by the lens shell and the cover plate; the top surface of the cover plate is provided with several upward protrusions The fin plate, the two sides of the lamp housing are provided with corresponding and penetrating ventilation holes, and the two sides of the lamp housing are provided with downwardly protruding baffles at the positions corresponding to the ventilation holes; when the cover plate is fixed on the lamp board After the lamp housing, the fin plate is located between the two baffle plates, there is a gap between the bottom surface of the baffle plate and the top plane of the cover plate, and the cover plate is provided with a droplet penetrating to the bottom at the position between the baffle plate and the edge of the cover plate. sink. 2 . The LED street lamp with high heat dissipation efficiency and waterproof function according to claim 1 , wherein the fin plate is parallel to the connecting line of the ventilation holes at both ends of the lamp housing, and the gap between the two fin plates is parallel to 2 . Also corresponds to the ventilation holes. 3 . The LED street light with high heat dissipation efficiency and waterproof function according to claim 1 , wherein: an inwardly recessed accommodating groove in the lens housing, the accommodating groove is used to place the driver of the LED lamp panel. 4 . , and the power line connecting the driver to the power supply is protruded from the wire hole provided on the cover plate. 4 . The LED street lamp with high heat dissipation efficiency and waterproof function according to claim 1 , wherein a threaded hole is provided in the end of the lamp housing opposite to the column, and the threaded hole is screwed with a bolt, 5 . The cover plate is provided with an installation hole corresponding to the threaded hole, and the bolt is threaded through the installation hole to be screw-locked with the threaded hole. 5 . The LED street lamp with high heat dissipation efficiency and waterproof function according to claim 1 , wherein the LED lamp board and the cover board are bonded by thermal conductive silicone grease, and the four corners are connected by screws. 6 . lock.