CN102734711B - LED road lamp - Google Patents

Abstract

The invention discloses a LED road lamp, comprising a connecting seat, a power bin connected with the connecting seat, power provided inside the power bin and a LED light group connected to the power bin. The LED light group comprises a plurality of LED modules. The plurality of LED modules is fixed via two side covers and front covers, and the side covers are connected to the power bin via screws. The LED modules comprise a module aluminum substrate for arranging LED, a module radiator arranged on the backside of the module aluminum substrate, and a module lens arranging on the module aluminum substrate. Gaps are among the LED modules and are evenly distributed. Heat dissipation energy efficiency is greatly enhanced through uniformly spaced distributed LED modules and upper and lower permeability of the LED modules. A LED light emitting module is sealed between the module lens and the module radiator by using a sealing ring, waterproof effect is good, and screws with rubber pads are used to prevent water vapor permeability. Light source and power source radiate independently, resist water independently with no need of glue, and have better heat dissipation and waterproof effects.

Description

A kind of LED street light

technical field

The invention relates to an LED street lamp.

Background technique

With the continuous innovation and development of LED upstream technology, LED lighting technology is becoming more and more mature, and the advantages of energy saving, environmental protection, and long life are becoming more and more significant. Almost all types of lighting fixtures have begun to use LED light sources, which are recognized as the next generation of lighting technology. LED street light products are widely used in road, square and garden lighting just like traditional street lights. Under the condition of meeting the lighting design standards, compared with traditional street lights, LED street lights can not only create good economic benefits (saving more than 50% of electricity costs and 90% of maintenance costs), but also produce great social benefits (saving energy and reducing exhaust emissions) quantity).

Because the luminous efficiency of LEDs decreases with the increase of LED temperature, the heat dissipation of LEDs is very important, especially for high-power LEDs. Without good heat dissipation, it will greatly accelerate the light decay of LEDs and reduce the use of LEDs. life, a lot of heat buildup, and sometimes even breakdown the circuit board. Because LED street lights are generally used outdoors, the outdoor environment is very harsh, and issues such as heat dissipation and waterproof must be well handled. At this stage, the waterproof and heat dissipation of LED street lamps seriously affect the life of LED light source and power supply. It is the bottleneck affecting the development of LED street lamp technology, which makes the current development of LED street lamps feel hopeless. It is particularly important to fully consider the light source and heat dissipation of the power supply while maintaining the function.

Contents of the invention

In order to solve the deficiencies in heat dissipation and waterproof of existing LED street lamps, the present invention provides an LED street lamp with good heat dissipation and waterproof performance.

An LED street lamp, comprising a connection base, a power supply compartment connected to the connection base, a power supply arranged in the power supply compartment, and an LED lamp group connected to the power supply compartment, the LED lamp group includes a plurality of LED modules, a plurality of LED The module is fixed by two side covers and the front cover, and the side cover is connected to the power supply compartment; the LED module includes the module aluminum substrate on which the LED is set, the module heat sink on the back of the module aluminum substrate, and the module aluminum substrate. The module lens on the substrate; there are gaps between the LED modules and they are evenly distributed.

Specifically, the module lens has a groove, and the module aluminum substrate is arranged in the groove, and a U-shaped groove is arranged around the groove, and a sealing ring is arranged in the U-shaped groove, and the mold is fixed by screws. The sealing ring in the lens group and the U-shaped groove is pressed on the radiator of the module to seal the aluminum substrate of the module between the lens of the module and the radiator of the module.

Preferably, the top of the heat sink of the module is an arc surface, and a plurality of cooling fins with serrated protrusions are arranged in the middle, and a tapered wire outlet hole and a tapered sealing plug used in conjunction with the wire outlet hole are provided.

More specifically, the power supply compartment includes an upper cover, a lower cover, and a compartment arranged on the lower cover, and is connected to the connecting seat through the lower cover and the compartment; the power supply is fixed in the compartment by screws, and the upper cover passes through the compartment The door shaft screw on the side close to the LED light group is flexibly connected, and the upper cover is fixed on the lower cover by screws.

More specifically, a chamber sealing ring is provided around the mouth of the chamber, which cooperates with the upper cover groove corresponding to the upper cover to seal the chamber, and the outlet hole of the chamber uses a waterproof interface.

Preferably, the lower cover is provided with a water leakage groove for drainage.

Preferably, the upper and lower sides of the front cover are provided with arc-shaped concave surfaces, the cross section of which is in the shape of a "convex" character, and the lower part of the front cover is provided with a hollow.

Preferably, the screws are provided with sealing gaskets for preventing water seepage.

Preferably, the connecting seat is connected to the power supply compartment through a connecting shaft with a scale, and the connecting shaft is provided with a locking screw, an elevation angle adjustment block and a spring whose one end is fixed to the rotation shaft and the other end is fixed to the elevation angle adjustment block.

To sum up, the present invention has the following beneficial effects: (1) Utilizing multiple LED modules at uniform intervals, the LED modules are transparent up and down, thereby greatly improving the heat dissipation efficiency; (2) The heat dissipation of the LED light source adopts all closed arcs Surface radiator, serrated fins maximize the heat dissipation area, create conditions for chimney effect, increase air flow, optimize and strengthen air convection; (3) use sealing rings to seal the LED light-emitting module to the module lens and Between the radiators of the modules, it has a good waterproof effect, and the screws with rubber pads are used to further prevent the penetration of water vapor; (4) The hollow under the front cover can speed up the convection between the air and the LED modules, forming a transparent The heat conduction flow field can effectively improve the air circulation and effectively disperse the heat generated by the light source. Further ensure that the temperature of the light source chip is lower; (5) The light source and power supply have independent heat dissipation, independent waterproof without glue, and the heat dissipation and waterproof effects are further improved; (6) The upper and lower covers are connected by door shafts, and the upper cover can be opened at a large angle , there is a visible humanized scale on the light pole connection seat and the adjustment block inside the lower cover can realize the precise adjustment of the elevation angle; (7) The overall shape is streamlined, and the structure adopts the mechanical design of light at the top and heavy at the bottom, light at the front and heavy at the rear , Effectively reduce wind resistance and also have self-cleaning ability.

Description of drawings

Accompanying drawing 1 is the overall structure schematic diagram of LED street lamp in the embodiment of the present invention;

Accompanying drawing 2 is the bottom view of LED street lamp structure assembly in the embodiment of the present invention;

Accompanying drawing 3 is a schematic diagram of the structural components of the LED street lamp in the embodiment of the present invention;

Accompanying drawing 4 is the schematic diagram of the structure of the upper cover of the LED street lamp in the embodiment of the present invention when it is opened;

Accompanying drawing 5 is the structural representation of accompanying drawing 2 section A-A;

Accompanying drawing 6 is the partially enlarged schematic diagram of the LED module of accompanying drawing 5;

Accompanying drawing 7 is the structural representation of accompanying drawing 2 section B-B;

Accompanying drawing 8 is the partially enlarged schematic diagram of accompanying drawing 5;

Accompanying drawing 9 is the structural schematic diagram of section C-C of accompanying drawing 2.

Detailed ways

In order to allow those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, the present invention discloses an LED street lamp, which includes a connection base 1, a power supply compartment 2 connected to the connection base, a power supply 21 arranged in the power supply compartment, and an LED lamp group connected to the power supply compartment. The LED lamp group includes a plurality of LED modules 3, and the plurality of LED modules are fixed by two side covers 41 and a front cover 42, and the side covers 31 are connected to the power supply compartment 2 by screws.

As shown in Figures 3 and 6, the LED module 3 includes a module aluminum substrate 31 with LEDs, a module radiator 32 arranged on the back of the module aluminum substrate 31, and a module lens 33 arranged on the module aluminum substrate; There are gaps between the LED modules 3 and they are evenly distributed. The module lens 33 has a groove, the module aluminum substrate 31 is arranged in the groove, and a U-shaped groove is also arranged around the groove, and a sealing ring 34 is arranged in the U-shaped groove, and the module is fixed by a screw 35 The lens 33 and the sealing ring 34 in the U-shaped groove are pressed against the module radiator 32 to seal the module aluminum substrate 31 between the module lens 33 and the module radiator 32 . The sealing ring 34 made of silicon rubber is placed in the U-shaped groove of the module lens 33 made of PC, and a part of the sealing ring 34 is exposed outside the U-shaped groove. The module lens is locked in place by sixteen screws on the module lens. On the module heat sink, the seal ring 34 is pressed against the heat conduction surface of the module heat sink 32 whose machining roughness Ra is less than 3.2, so as to realize the sealing and waterproof of the aluminum substrate and the light source inside the lens seal ring 34 .

As shown in Figures 4 and 7, the top of the module radiator 32 is an arc surface, and there are a plurality of cooling fins with serrated protrusions in the middle, which increases the convection area and creates a chimney effect by regularly distributing the convection holes. conditions, optimize and increase air flow, strengthen air convection, and improve heat dissipation. As shown in FIG. 8 , a tapered wire outlet hole and a tapered sealing plug 36 used in conjunction with the wire outlet hole are also provided on the module radiator. The aluminum substrate 31 of the module is tightly pressed against the top of the tapered sealing plug 36 through the screws 37 on both sides of the outlet hole to deform it, so as to realize the sealing and waterproofing of the outlet end.

As shown in Figures 3 and 4, the power supply compartment includes an upper cover 22, a lower cover 23, and a compartment 24 arranged on the lower cover, and is connected to the connection base 1 through the lower cover 23 and the compartment 24; the power supply 21 is connected by a screw Fixed in the compartment 24, the upper cover 22 is movably connected by the door shaft screw 25 on the side of the compartment 24 close to the LED lamp group, and the upper cover is fixed on the lower cover by screws. The loam cake 22 can realize 0 °-120 ° opening through door shaft screw rod 25. A chamber sealing ring 26 is arranged around the mouth of the chamber 24, which is used in conjunction with the corresponding upper cover groove of the upper cover to seal the chamber, and the outlet hole of the chamber uses a waterproof interface.

Because a large number of screws are used, the screws are all provided with sealing gaskets for preventing water seepage due to the need of waterproofing.

In order to achieve better waterproof performance under heavy rain and other environments, the lower cover 23 is provided with a water leakage groove for drainage, so that the rainwater can be quickly discharged.

As shown in Figure 7, the upper and lower sides of the front cover 42 are provided with circular arc concave surfaces, and its cross section is in the shape of a "convex" character. Supporting role.

The LED street lamp of the present invention is transparent up and down, forming a heat conduction flow field. When the light source is energized and emits heat, the external cold air and the hot air around the radiator form convection, thereby accelerating heat dissipation again and effectively dispersing the heat generated by the light source. According to the needs, it can also be lower, effectively reducing the temperature of the LED chip of the street lamp.

In order to accurately and conveniently adjust the angle of the LED street lamp, the connecting base 1 is connected to the power supply compartment 2 through a connecting rotating shaft with a scale. Both sides of the connecting shaft are provided with an adjusting screw 11, an elevation angle adjusting block 12 and one end is fixed on the other side of the rotating shaft. One end is fixed to the spring 13 of the elevation angle adjustment block 12, as shown in FIGS. 3 and 9 . When the adjustment screw 11 is loosened, the spring 13 will automatically push the elevation angle adjustment block 12 to realize the adjustment of the elevation angle of the LED street lamp. The general adjustment range can be between plus and minus 15°. After adjusting to an appropriate angle, lock the adjustment screw 11 to The elevation angle adjustment block 12 is tightly pressed on the connecting seat and fixed.

This embodiment is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention. But these changes and deformations should all belong to the scope of protection of the appended claims of the present invention.

Claims (6)

1. A LED street lamp, comprising a connection base, a power supply compartment connected to the connection base, a power supply arranged in the power supply compartment, and an LED lamp group connected to the power supply compartment, wherein the LED lamp group comprises a plurality of LED lamps Module, a plurality of LED modules are fixed through two side covers and a front cover, and the side cover is connected to the power supply compartment; the LED module includes a module aluminum substrate for setting LEDs, and a module radiator arranged on the back of the module aluminum substrate And the module lens set on the aluminum substrate of the module; there are gaps between the LED modules and are evenly distributed; The top of the module radiator is an arc surface, with a plurality of heat sinks with serrated protrusions in the middle, and a tapered outlet hole and a tapered sealing plug used in conjunction with the outlet hole. The module radiator There are regularly distributed convection holes on the top arc surface; The module lens has a groove, and the module aluminum substrate is arranged in the groove, and a U-shaped groove is also arranged around the groove, and a sealing ring is arranged in the U-shaped groove, and the module lens and the The sealing ring in the U-shaped groove is pressed tightly on the module radiator to seal the module aluminum substrate between the module lens and the module radiator; The power supply compartment includes an upper cover, a lower cover, and a compartment arranged on the lower cover, and is connected to the connecting seat through the lower cover and the compartment; the power supply is fixed in the compartment by screws, and the upper cover is close to the LED lamp group through the compartment The door shaft screw on one side is flexibly connected, and the upper cover is fixed on the lower cover by screws. 2. The LED street lamp according to claim 1, characterized in that, the mouth of the chamber is provided with a chamber sealing ring around the mouth, which is used in conjunction with the groove of the upper cover corresponding to the upper cover to seal the chamber, and the chamber The outlet hole uses a waterproof interface. 3. The LED street lamp according to claim 2, wherein the lower cover is provided with a water leakage groove for draining water. 4. The LED street lamp according to claim 1, characterized in that, the front cover is provided with arc-shaped concave surfaces above and below, and its cross section is in the shape of a "convex" character, and the lower part of the front cover is provided with a hollow. 5. The LED street lamp according to any one of claims 1-4, characterized in that, the screws are provided with sealing gaskets for preventing water seepage. 6. The LED street lamp according to claim 1, characterized in that the connecting seat is connected to the power supply compartment through a connecting shaft with a scale, and the connecting shaft is provided with a locking screw, an elevation angle adjustment block, and one end is fixed on the rotating shaft and the other end is fixed The spring on the elevation adjustment block.