CN201396638Y - An outdoor LED lamp - Google Patents

Abstract

The utility model discloses an outdoor LED lamp comprising a bracket, wherein, a heat dissipation lamp body and an electrical equipment box are installed on the bracket, an LED light source is arranged in the heat dissipation lamp body, a sun visor is further mounted on the bracket, the sun visor is positioned above the heat dissipation lamp body and the electrical equipment box, with a space reserved as a heat dissipation passage, heat dissipation ribs are arranged on the outer surface of the heat dissipation lamp body, among which the heat dissipation ribs on the peripheral side surfaces arelaminated structures and arranged in a radial manner, and the heat dissipation ribs which allow for formation of air flow passages at different angles at the top of the heat dissipation lamp body aremade up of a plurality of radiating fins with various shapes. Because of the structure, the outdoor LED lamp has the advantages of high heat dissipation performance, prolonged service life of the LEDlight source and improved using effect.

Description

An outdoor LED lamp

technical field

The utility model relates to an LED lighting technology, in particular to an outdoor LED lamp.

Background technique

In the application of LED light source, especially in the application of high-power and high-brightness outdoor LED light source, the light efficiency, light decay and life of LED light source are directly related to the LED junction temperature. Therefore, how to reduce the LED junction temperature has become the key to ensure the reliable operation of the LED light source and maintain the effective life. At the same time, semiconductor devices including LEDs have storage temperature requirements, which are roughly -40°C to 135°C.

However, in practical applications, due to the requirements of installation, assembly and aesthetics, the lamps often cannot be made too large, so the LED light source and its driving power circuit are often set in a limited space. The LED light source and driving power circuit Each heats up and affects each other, resulting in an increase in the working environment temperature of the LED and the driving power circuit; moreover, if the LED lamp body is exposed to sunlight, the LED will be placed in a high temperature environment for a long time in the non-working state, so It worked poorly.

At present, outdoor LED lamps at home and abroad are mostly modified from conventional street lamp shells or designed with reference to conventional street lamp lamp bodies. The disadvantage is that due to the limitation of the volume and shape of the street lamp body, the power of the installed lamp is limited or the heat generated by the LED light source cannot be quickly exported from the lamp body, and it cannot effectively solve the adverse effects of electronic devices exposed to the sun, which limits high power and high brightness. The application and promotion of LED light sources in outdoor and street lighting and other urban lighting and landscape.

Contents of the invention

The purpose of this utility model is to overcome the shortcomings in the prior art, and provide an outdoor LED lamp with high heat dissipation performance, so as to reduce the large light decay of LED lamps and street lamps due to the inability to effectively solve the heat dissipation problem in high-power outdoor LED lamps and street lamps. Short problem, thereby prolonging the service life of the LED light source and improving the use effect.

The purpose of this utility model is achieved as follows: an outdoor LED lamp, which includes a bracket, a heat dissipation lamp body and an electrical box are installed on the bracket, an LED light source is provided in the heat dissipation lamp body, and an LED driving power is provided in the electrical box, and the characteristic is that : A sun visor is installed on the bracket, the sun visor is located on the heat dissipation lamp body and the electrical box and leaves a heat dissipation gap, the outer surface of the heat dissipation lamp body has heat dissipation ribs, and the heat dissipation ribs on the surrounding sides are sheet-like structures and radiate arranged in shape.

In order to make the wind from different directions pass smoothly through the heat dissipation ribs on the top of the heat dissipation lamp body and improve the heat dissipation effect, the top of the heat dissipation lamp body is composed of several deformed heat dissipation fins to form heat dissipation ribs with air flow channels at multiple angles.

The heat dissipation lamp body has ventilation holes on the side wall and the top and is coated with a waterproof and gas-permeable film.

The sun visor forms an acute included angle with the top of the lamp body, and the included angle can increase the ventilation volume, thereby improving the heat dissipation efficiency.

The sun visor is a solar panel, and the electrical box is also provided with a charging and discharging controller connected to an external storage battery. The solar panel is connected to the charging and discharging controller in the electrical box, the external storage battery and The LED driving power is connected, and the output end of the LED driving power is connected with the LED light source.

The body of the heat dissipation lamp is equipped with a temperature sensing probe, the LED driving power is a controllable LED driving power, and the temperature sensing probe is connected with the controllable LED driving power in the electrical box through wires.

Compared with the prior art, the utility model has the following advantages: 1. It has high heat dissipation performance, so as to reduce the influence of large light decay and short service life of LEDs caused by poor heat dissipation in high-power outdoor LED lamps. Thereby prolonging the service life of the LED light source and improving the use effect; 2. Through the application of the sun visor, the heat dissipation lamp body and the electrical box are prevented from being directly exposed to the sun, and the temperature of the heat dissipation lamp body and the electrical box is reduced to ensure the LED light source and electrical box The electrical appliances are in a good working temperature state; 3. The sun visor can be replaced with a solar panel, and the device can be upgraded to a solar outdoor LED lamp; 4. The heat dissipation ribs on the sides around the heat dissipation lamp body are sheet-shaped and arranged radially, and the top is composed of A number of multi-deformed heat sinks form multi-angle heat dissipation ribs with channels, which can make the wind from different directions pass through the heat dissipation ribs of the heat dissipation lamp body smoothly, improving heat dissipation efficiency; 5. Separately on the side wall and top of the heat dissipation lamp body Open air holes and apply a waterproof and breathable film. When the device is working, air convection can be formed inside the lamp body to ensure that the LED light source works at an ideal temperature, and at the same time ensure the waterproof and dustproof level of the heat dissipation lamp body; 6. The device inside the heat dissipation lamp The temperature sensing probe feeds back the working temperature of the LED in the cooling lamp to the controllable LED drive power supply in the electrical box. The controllable LED drive power supply can automatically adjust the LED drive current according to the temperature signal to ensure that the LED light source works in a proper power and temperature state Down.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of an outdoor LED lamp of the present invention;

Fig. 2 is a schematic diagram of the three-dimensional structure of the bottom of the heat dissipation lamp body of the outdoor LED lamp of the present invention;

Fig. 3 is a schematic diagram of the three-dimensional structure of the upper part of the heat dissipation lamp body of the outdoor LED lamp of the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 3 , an outdoor LED lamp includes a bracket 1 on which a heat dissipation lamp body 5 and an electrical box 2 are installed. There is an LED light source 4 inside the heat dissipation lamp body 5 . A sun visor 6 is also installed on the support 1, and this sun visor 6 is a solar panel, and this solar panel is positioned on the heat dissipation lamp body 5 and the electrical box 2 and is higher than the heat dissipation lamp body 5 top and leaves 10 centimeters of heat dissipation. gap. The electrical box 2 is provided with a storage battery and a controllable LED driving power supply, the solar panel is connected to the battery in the electrical box 2 and the controllable LED driving power supply through wires, and the output end of the controllable LED driving power supply is connected to the LED light source 4 . The outer surface of the heat dissipation lamp body 5 has heat dissipation ribs, wherein the heat dissipation ribs on the surrounding sides are sheet-like structures and arranged radially, and the top is composed of several triangular heat sink fins to form multi-angle heat dissipation ribs with channels; the heat dissipation lamp body 5 is on the side wall. And the top has air vent and is covered with waterproof breathable membrane 7. The heat-dissipating lamp body 5 is equipped with a temperature sensing probe 3, and the temperature sensing probe 3 is connected with the controllable LED driving power supply in the electrical box 2 through wires.

Claims (8)

1. An outdoor LED lamp, which includes a bracket (1), on which a heat dissipation lamp body (5) and an electrical box (2) are installed, and an LED light source (4) is arranged in the heat dissipation lamp body (5), There is an LED drive power supply in the electrical box (2), which is characterized in that: a sun visor (6) is installed on the support (1), and the sun visor (6) is located on the heat dissipation lamp body (5) and the electrical box (2) And leave a heat dissipation gap, the outer surface of the heat dissipation lamp body (5) has heat dissipation ribs, wherein the heat dissipation ribs on the surrounding sides are sheet-like structures and arranged radially. 2. The outdoor LED lamp according to claim 1, characterized in that: the top of the heat dissipation lamp body (5) is composed of several deformed heat dissipation fins to form heat dissipation ribs with air flow channels at multiple angles. 3. The outdoor LED lamp according to claim 1 or 2, characterized in that: the heat dissipation lamp body (5) has ventilation holes (7) on the side wall and top and is covered with a waterproof and breathable film. 4. The outdoor LED lamp according to claim 1 or 2, characterized in that: the sun visor (6) forms an acute angle with the top of the heat dissipation lamp body (5). 5. The outdoor LED lamp according to claim 1 or 2, characterized in that: the sun visor (6) is a solar panel, and the electrical box (2) is also equipped with a charging and discharging controller and The external storage battery and the solar panel are connected with the charging and discharging controller in the electrical box (2), the external storage battery and the LED driving power supply through wires, and the output end of the LED driving power supply is connected with the LED light source (4). 6. The outdoor LED lamp according to claim 3, characterized in that: the sun visor (6) is a solar panel, and the electrical box (2) is also equipped with a charging and discharging controller and an external The storage battery, the solar battery panel are connected with the charging and discharging controller in the electrical box (2), the external storage battery and the LED drive power supply through wires, and the output end of the LED drive power supply is connected with the LED light source (4). 7. The outdoor LED lamp according to claim 6, characterized in that: the heat dissipation lamp body (5) is equipped with a temperature sensing probe (3), the LED driving power is a controllable LED driving power, and the temperature sensing The probe (3) is connected with the controllable LED driving power supply in the electrical box (2) through wires. 8. The outdoor LED lamp according to claim 6, characterized in that: the heat dissipation lamp body (5) is equipped with a temperature sensing probe (3), the LED driving power is a controllable LED driving power, and the temperature sensing The probe (3) is connected with the controllable LED driving power supply in the electrical box (2) through wires.

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