Outdoor lighting lamp

Abstract

The invention discloses an outdoor lighting lamp. The outdoor lighting lamp comprises a lamp shell and a wind guide part. A heat sink is arranged inside the lamp shell. The wind guide part is arranged on the upper portion of the lamp shell. The wind guide part is provided with an outer side wall which extends upwards in an inclined mode from the upper portion of the lamp shell towards the upper portion of one side of the lamp shell. At least two partition plates are arranged on the outer side wall of the wind guide part and extend upwards in an inclined mode along the outer side wall of the wind guide part from the upper surface of the lamp shell. A wind inlet hole is formed in the upper portion or one side of the lamp shell. The outer side wall of the wind guide part is located above the wind inlet hole. When natural wind blows the outer side wall of the wind guide part, the outer side wall of the wind guide part and the partition plates change the direction of the natural wind and make the natural wind blow the heat sink through the wind inlet hole. According to the outdoor lighting lamp, the natural wind can be guided into the lamp shell, so that the heat dissipation effect is better, and the lamp shell can be less irradiated by sunlight; besides, the manufacturing cost is quite low, and manufacturing is convenient.

Description

technical field [0001] The invention relates to an outdoor lighting fixture with good heat dissipation effect and long service life. Background technique [0002] Outdoor lighting fixtures such as LED street lights generally have high power. During use, the LED light-emitting elements and control elements in the light will generate a lot of heat. It is necessary to dissipate heat from the LED light-emitting elements and control elements to ensure the normal operation of the light. There are two main heat dissipation methods. The first heat dissipation method is to mount the LED light-emitting element on a metal heat dissipation plate with good thermal conductivity, and fix the control element on the metal heat dissipation plate, and then set a heat dissipation device on the lamp housing. During the use of the lamp, the heat generated by the LED light-emitting elements and control elements is transferred to the metal heat sink, and the heat exchange between the metal heat si...

AI Technical Summary

Problems solved by technology

[0002] Outdoor lighting fixtures such as LED street lights generally have high power. During use, the LED light-emitting components and control components in the lamps will generate a lot of heat. Heat dissipation with the control components to ensure the normal operation of the lamps. At present, there are two main heat dissipation methods for lamps. The first heat dissipation method is to mount the LED light-emitting components on a metal heat sink with good thermal conductivity, and place the control components on the Fix it on the metal heat sink, and then open the heat dissipation hole on the lamp shell. During the use of the lamp, the heat generated by the LED light-emitting element and the control element is transferred to the metal heat sink, and the heat exchange between the metal heat sink and the air makes the LED The heat generated by the light-emitting element and the control element is continuously taken away to achieve the purpose of heat dissipation, but this heat dissipation method requires the metal heat dissipation plate to have better thermal conductivity and requires a larger surface area of ​​the metal heat dissipation plate, so the cost is higher. Moreover, this heat dissipation method only relies on the heat exchange between the metal heat dissipation plate and the air, and the heat exchange efficiency is low, which makes the heat dissipation effect poor. Moreover, when the sunlight shines on the lamp, the temperature inside the lamp will be higher, which will instead The heat is transferred to the LED light-emitting element and the control element through the metal heat dissipation plate, making the heat dissipation effect worse, and the service life of the LED light-emitting element and the control element is shortened; The heat dissipation plate blows air to speed up the heat dissipation on the metal heat dissipation plate. This heat dissipation method requires the use of fans, which makes the cost higher, and the fan installation is more troublesome, and the fan is easy to burn out in high temperature outdoors. Once the fan burns out, it will not be able to Effective heat dissipation for LED lighting components and control components

Images