A kind of LED
Technical field
The utility model relates to technical field of LED illumination, particularly a kind of LED.
Background technology
LED (Light Emitting Diode, light emitting diode) characteristic such as illumination, environmental protection energy-conservation, long-lived with it is more and more subject to the welcome in market, but owing to needing wattage to do greatly in limited fixing volume, heat radiation is first problem needing to solve, because the too high meeting of PN junction temperature of LED causes dead lamp phenomenon, PN junction temperature is too high also can cause that the decay of fluorescent material is large, fast, look wafts problem.The operating ambient temperature of driving power is also the problem in service life directly having influence on the whole lamp of LED.
Inside general illumination and commercial lighting, people are more and more higher to LED light designing requirement, be mostly imitative lumen light source (a kind of LED lamp bead light source title) on the market, the non-constant of its design hot spot uniformity, and visually as the sensation of honeycomb, the one lens of several many are utilized to be assemblied into a lamp, see when people use lamp as several eyes the same, because traditional lighting is branch light source luminescent, the lamp pearl of many integrated lens is difficult to apart from excessive or assembled design the glare problem solving lamp.Require the inside at the Lighting Design of some high-end specialties, center illumination is general requirement, but surround lighting supply more and more payes attention in recent years.
Utility model content
Avoid lamp dazzle while that the technical problems to be solved in the utility model being and how improving LED heat dispersion and a kind of LED is provided.
For solving the problems of the technologies described above, the utility model provides a kind of LED, comprise power supply shell, power supply shell side wall is provided with heat radiation fresh air inlet, power supply shell top lamp holder is installed, inside is provided with driving power, lamp holder is electrically connected with driving power, it is characterized in that: below driving power, be provided with cooling mechanism, it comprises the fan connected as one, die casting aluminium radiator and temperature detect switch (TDS), this cooling mechanism is connected on power supply shell, lighting means is provided with below cooling mechanism, it comprises the PCB linked together, LED light source, with light source compressing tablet support, lighting means is fixed on die casting aluminium radiator, reflector is arranged with outside LED light source, PC light transmission piece is connected with below reflector, reflector (12) top is fixed on light source light source compressing tablet support, PC light transmission piece is fixed on bottom die casting aluminium radiator.
Preferably, in technique scheme, driving power is screwed in power supply shell, and lamp holder lock onto power supply shell upper end by clamping device.
Preferably, in technique scheme, fan adopts quiet fan, and is screwed in die casting aluminium radiator upper end, and below the driving power that be arranged in parallel.
Preferably, in technique scheme, reflector adopts multiple cup combined type, and each bottom of cup is one group of LED light source.
Preferably, in technique scheme, reflector comprises 6 cups, and one of them cup is located at center, is evenly located at centerpiece body periphery for another 5.
Preferably, in technique scheme, the positive and negative polar curve of the positive and negative polar curve of the positive and negative polar curve of LED light source, temperature detect switch (TDS) and fan is all connected to correspondence position in PCB.
Preferably, in technique scheme, PC light-passing board is screwed in die casting aluminium radiator bottom.
Preferably, in technique scheme, PCB is screwed inside die casting aluminium radiator upper end, and is parallelly located at below fan.
Preferably, in technique scheme, LED light source and light source compressing tablet support are screwed in die casting aluminium radiator, and are parallelly located at below PCB.
A kind of LED of the utility model, by the rotation of fan, can pass through heat radiation fresh air inlet flow-disturbing in power supply shell, with the driving power of cooled interior and LED light source by the cooling blast of outside.The utility model adopts the optimum way of active heat removal, rear section lamp body can by the design of various countries' Safety Approval, adopt the light processing components of reflexed light ring and PC light transmission piece in addition, intensity of illumination, uniformity coefficient and illuminating effect are further improved, and component costs cheap, be convenient to change, relative weight is also lighter.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, a kind of LED of the utility model is described further:
Fig. 1 is the cross-sectional view of this LED;
Fig. 2 is the detonation configuration schematic diagram of this LED;
Fig. 3 is the assembly schematic diagram of this LED.
In figure: 1-power supply shell, 2-dispel the heat fresh air inlet, 3-lamp holder, 4-driving power, 5-fan, 6-die casting aluminium radiator, 7-temperature detect switch (TDS), 8-PCB wiring board, 9-LED light source, 10-light source compressing tablet support, 11-reflector, 12-PC light transmission piece, 13-cup.
Detailed description of the invention
As Fig. 1, 2, shown in 3, the utility model provides a kind of LED, comprise power supply shell 1, power supply shell 1 adopts plastic cement material, power supply shell side wall is provided with heat radiation fresh air inlet 2, power supply shell top lamp holder 3 is installed, inside is provided with driving power 4, lamp holder 3 is electrically connected with driving power 4, cooling mechanism is provided with below driving power 4, cooling mechanism comprises the fan 5 connected as one, die casting aluminium radiator 6 and temperature detect switch (TDS) 7, this cooling mechanism is connected on power supply shell, lighting means is provided with below cooling mechanism, lighting means comprises the PCB 8 linked together, LED light source 9, with light source compressing tablet support, lighting means is fixed on die casting aluminium radiator 6, reflector 11 is arranged with outside LED light source 9, PC light transmission piece 12 is connected with below reflector 11, reflector 11 (12) top is fixed on light source light source compressing tablet support 10, PC light transmission piece 12 is fixed on bottom die casting aluminium radiator 6.
In the present embodiment, driving power 4 is screwed in power supply shell 1, and lamp holder 3 is by clamping device locking and power supply shell 1 upper end.Fan 5 adopts quiet fan 5, and is screwed in die casting aluminium radiator 6 upper end, and below the driving power 4 that be arranged in parallel; PCB 8 is screwed inside die casting aluminium radiator 6 upper end, and is parallelly located at below fan 5; LED light source 9 and light source compressing tablet support 10 are screwed in die casting aluminium radiator 6, and are parallelly located at below PCB 8; PC light-passing board is screwed in die casting aluminium radiator 6 bottom; Reflector 11 adopts multiple cup 13 combined type, is one group of LED light source 9 bottom each cup 13.In the present embodiment, reflector 11 preferably includes 6 cups 13, and one of them cup 13 is located at center, is evenly located at center cup 13 periphery for another 5.
The positive and negative polar curve of the positive and negative polar curve of LED light source 9, the positive and negative polar curve of temperature detect switch (TDS) 7 and fan 5 is all connected to correspondence position in PCB 8.
In above-described embodiment, LED light source can be single COB, many COB or plurality of LEDs light source.Optics can be integrated lens, reflector is used alone, or lens are combined with reflector, and wide-angle light can be realized by whole PC lens.Above content all falls within protection domain of the present utility model.
Number of assembling steps of the present utility model is as follows:
1, power supply shell 1 and lamp holder 3 installation steps: driving power 4 is fixed in power supply shell 1, and with screw locking, then welding driving power 4 input line is to lamp holder 3, and lamp holder 3 clamping device is locked at power supply shell 1 upper end.
2, cooling mechanism and lighting means installation steps: PCB 8 is screwed and is locked in die casting aluminium radiator 6, connect the positive and negative polar curve of LED light source 9, and LED light source 9 and light source compressing tablet support 10 are arranged on below the PCB 8 in die casting aluminium radiator 6 by screw, and in order the positive negative wire of LED light source 9 and the both positive and negative polarity line of temperature detect switch (TDS) 7 are welded on PCB terminal plate relevant position, temperature detect switch (TDS) 7 is fixed in die casting aluminium radiator 6, then reflector 11 is arranged on light source compressing tablet support 10, PC light-passing board is placed on bottom die casting aluminium radiator 6, with screw locking, finally quiet fan 5 is screwed in die casting aluminium radiator 6 upper end, complete installation.
Above-mentioned embodiment is intended to illustrate that the utility model can be professional and technical personnel in the field and realizes or use; modifying to above-mentioned embodiment will be apparent for those skilled in the art; therefore the utility model includes but not limited to above-mentioned embodiment; any these claims or description of meeting describes, and meets and all falls within protection domain of the present utility model with the product of principle disclosed herein and novelty, inventive features.