Automatic heat dissipation angle adjustable PAR lamp

Abstract

The invention provides an automatic heat dissipation angle adjustable PAR lamp which comprises a first motor, a first transmission shaft, a second motor, an L-shaped connecting rod, a second transmission shaft, a heat dissipation opening, a heat dissipation fan, a heat dissipation chamber and a temperature control switch. The lower end of the first transmission shaft is assembled in the first motor. The upper end of the L-shaped connecting rod is mounted on the outer surface of the first motor, and the lower end of the L-shaped connecting rod is mounted on the outer surface of the second motor. The left end of the second transmission shaft is assembled in the second motor. By means of the design, the problem of the single irradiation angle of an original PAR lamp is solved, and the range of the irradiation angle of the automatic heat dissipation angle adjustable PAR lamp is expanded; the heat dissipation fan is assembled in the heat dissipation chamber, the heat dissipation opening is mounted on the lower end face of the heat dissipation chamber, and the temperature control switch is connected with the heat dissipation fan through a wire; by means of the design, the problem of the short service life of the PAR lamp is solved, the temperature in the PAR lamp is effectively reduced, energy is saved, and automatic starting and stopping of the heat dissipation fan are achieved; and the automatic heat dissipation angle adjustable PAR lamp is convenient to mount, saves energy and is long in service life and low in maintenance efficiency.

Description

technical field [0001] The invention is a PAR lamp with an adjustable automatic cooling angle, which belongs to the field of lamps. Background technique [0002] PAR lamp is also called downlight. Its structure is to install a mirror bulb in a cylinder or use a reflective bowl to hold a bromine tungsten bulb. The main feature is that it emits a relatively fixed beam with various beam angles. The spot size cannot be adjusted. [0003] In the existing technology, due to the small structure of PAR lamps, the maximum power can only reach 18W under normal circumstances, otherwise the heat generated by the lamp beads cannot be exported, which will lead to accelerated pearl light decay of LED lamps and short lamp life. The demand for lamps (20-40W) is large, so it is necessary to increase the active cooling of the fan on the original basis to ensure the normal life of the lamps and open up this market. Although there are PAR lamps with heat dissipation function on the market, their...

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Problems solved by technology

[0003] In the existing technology, due to the small structure of PAR lamps, the maximum power can only be 18W under normal circumstances, otherwise the heat generated by the lamp beads cannot be exported, which will lead to faster pearlescent decay of LED lamps and short lamp life. Lamps (20-40W) are in great demand, so fans must be added to the original basis to actively dissipate heat to ensure the normal life of the lamps and open up this market. Although there are PAR lamps with cooling functions on the market, their cooling effect is not good, and cooling fans It cannot be turned on and off independently, thus shortening the service life of the cooling fan. When the internal temperature of the PAR lamp is low, the cooling fan is always working, which is a waste of electric energy. At the same time, it is necessary to adjust the irradiation angle of the PAR lamp to achieve the required Lighting effect, this is also one of the shortcomings of existing PAR lamps, it is difficult to meet people's needs for PAR lamps, so there is an urgent need for an automatic heat dissipation angle adjustable PAR lamp to solve the above problems

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