CN202074257U

CN202074257U - External power supply LED light fixture with cooling device

Info

Publication number: CN202074257U
Application number: CN2010206701322U
Authority: CN
Inventors: 朱衡
Original assignee: ANHUI ZHONGHEDA OPTOELECTRONIC Co Ltd
Current assignee: ANHUI ZHONGHEDA OPTOELECTRONIC Co Ltd
Priority date: 2010-12-17
Filing date: 2010-12-17
Publication date: 2011-12-14
Anticipated expiration: 2020-12-17

Abstract

The utility model discloses an external power supply LED light fixture with a cooling device, which aims to resolve the disadvantage of the prior art that heat generated during the working of the LED light fixture is hard to be dissipated. The external power supply LED light fixture comprises at least one plastic tube with high light transmittance. Two ends of the tube are respectively provided with a pin. An aluminum substrate and a power supply plate are disposed in the tube. A plurality of LEDs are fixedly arranged on the lower surface of the aluminum substrate in a parallel connection with the output power string of a control circuit on the power supply plate. The two ends of the pin are electrically connected to commercial power and the control circuit respectively. The commercial power is converted into direct current by the control circuit and drives LED to emit light. The external power supply LED light fixture also comprises a rectangular plastic lamp panel. The tube is disposed in the lamp panel. An air outlet is disposed at the top of one end of the lamp panel. The external power supply LED light fixture also comprises an external power box fixed to the other end of the lamp panel, and an air inlet is arranged at the top of the power box. An air vent is disposed at the top of the lamp panel. A radiator fan is disposed between the air inlet and the air vent, and the fan is electrically connected to the control circuit. The power supply plate is disposed in the external power box. An elongated window is disposed at the upper portion of the tube along the length direction.

Description

The external power supply formula LED light fixture of band heat abstractor

Technical field

The utility model relates to a kind of light fixture, especially a kind of LED lighting.

Background technology

Existing LED lighting comprises the plastic cement fluorescent tube of a high light transmittance, the two ends of this fluorescent tube are respectively arranged with 2 contact pins, be assemblied in the aluminium base in the fluorescent tube, be assemblied in the power panel above the aluminium base, by with power panel on fixing a plurality of LED of array on the aluminium base lower surface of the series-parallel mode of out-put supply of control circuit; Wherein an end of contact pin is electrically connected with civil power, and its other end is electrically connected with control circuit on the power panel, and the control circuit on the power panel is luminous with direct current and driving LED that civil power is converted to appropriate voltage.Such light fixture is compared with common fluorescent lamp, has high energy-conservationly, and the life-span is long, sharp environmental protection, the not advantage of cracky.But, the weak point of this light fixture is, owing to be provided with a large amount of LED in the fluorescent tube, they can give out a large amount of heats when work, and these heats are closed in the plastic cement fluorescent tube, are difficult to distribute, so long thermal accumlation, can influence the luminous mass of LED, even it is damaged, thereby make the too early inefficacy of whole light fixture.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of external power supply formula LED light fixture with heat abstractor is provided, thereby improves the luminous mass of LED, and prolongs the service life of whole light fixture.

In order to realize above-mentioned purpose, can adopt following technical scheme: the same plastic cement fluorescent tube that comprises at least one high light transmittance of external power supply formula LED light fixture of the band heat abstractor of this programme with prior art, the two ends of this fluorescent tube are respectively arranged with 2 contact pins, be assemblied in the aluminium base in the fluorescent tube, one power panel, by with fixing a plurality of LED of array on the aluminium base lower surface of the series-parallel mode of the out-put supply of power panel control circuit; Wherein an end of contact pin is electrically connected with civil power, and its other end is electrically connected with control circuit on the power panel, and the control circuit on the power panel is luminous with direct current and driving LED that civil power is converted to appropriate voltage, and its improvement is also to be provided with:

The plastic cement lamp panel of a rectangle, the two ends of described plastic cement fluorescent tube are assemblied in respectively in the lamp socket in this lamp panel; Top at an end of this lamp panel is provided with an air outlet;

An external power supply box, this external power supply box be fixed on the lamp panel other end above, its box top is provided with an air inlet, lamp panel top corresponding below this air inlet is provided with a ventilating opening, be equipped with a radiator fan in the space between this air inlet and ventilating opening, radiator fan is electrically connected with control circuit on the power panel;

Described power panel is assemblied in the external power supply box, face on the top board of lamp panel;

The top of described plastic cement fluorescent tube is provided with the window of a strip along its length, and the left and right sides end face of the two ends of this window and plastic cement fluorescent tube keeps suitable distance.

Further, 2 anti-dust filter meshes can also be set, these 2 anti-dust filter meshes are assemblied in the top of air inlet and air outlet respectively.

Above-mentioned plastic cement fluorescent tube can be 2 or 3 or a plurality of.

When light fixture of the present utility model is worked, in the LED electrified light emitting, radiator fan also starts simultaneously, it is from air inlet suction air, enter lamp panel through ventilating opening, strip window above the plastic cement fluorescent tube enters an end of fluorescent tube again, and then along fluorescent tube and blow to its other end, strip window above fluorescent tube and the air outlet on the lamp panel blow out again.Wind by the circulation of inlet and outlet, makes the circulation of air of LED fluorescent tube inside in process of flowing, and wind to aluminium base and work in LED the time, can take the heat that LED produced out of fluorescent tube, thereby reach the purpose of heat radiation.

Therefore, the beneficial effects of the utility model are, the heat that its inner LED produced in the external power supply formula LED light fixture course of work can be distributed rapidly by radiator fan, thereby improve the work quality of LED, and prolong the service life of whole LED fluorescent tube.

In order to make the utility model be convenient to understand, it is described further below by drawings and Examples with more clear.

Description of drawings

Fig. 1 is the external structure schematic diagram of the utility model embodiment 1.

Fig. 2 is that the A-A of Fig. 1 and Fig. 5 analyses and observe enlarged diagram.

Fig. 3 is the A portion enlarged diagram of Fig. 2;

Fig. 4 is the B portion enlarged diagram of Fig. 2;

Fig. 5 is the external structure schematic diagram of the utility model embodiment 2.

Fig. 6 is the schematic rear view of Fig. 5.

The specific embodiment

Embodiment 1, referring to Fig. 1 one Fig. 4 and Fig. 6.The external power supply formula LED light fixture of the band heat abstractor of present embodiment comprises the plastic cement fluorescent tube 6 of at least one high light transmittance, the two ends of this fluorescent tube 6 are respectively arranged with 2 contact pins 10, be assemblied in the aluminium base 7 in the fluorescent tube 6, one power panel 2, by with power panel 2 on fixing a plurality of LED11 of array on the aluminium base lower surface of the series-parallel mode of out-put supply of control circuit (not shown); Wherein an end of contact pin 10 is electrically connected with civil power, and its other end is electrically connected with control circuit on the power panel 2, and the control circuit on the power panel 2 is luminous with direct current and driving LED 11 that civil power is converted to appropriate voltage, also is provided with in addition:

The plastic cement lamp panel 3 of a rectangle, the two ends of described plastic cement fluorescent tube 6 are assemblied in respectively in the lamp socket (not shown among Fig. 6) in this lamp panel 3; Be provided with an air outlet 4 at the top of these lamp panel 3 one ends;

An external power supply box 5, this external power supply box 5 be fixed on lamp panel 3 other ends above, its box top is provided with an air inlet 1, lamp panel 3 tops corresponding below this air inlet 1 are provided with a ventilating opening 31, be equipped with a radiator fan 8 in the space between this air inlet 1 and ventilating opening 31, radiator fan 8 is electrically connected with control circuit on the power panel 2;

Above-mentioned power panel 2 is assemblied in the external power supply box 5, face on the top board of lamp panel 3; The top of above-mentioned plastic cement fluorescent tube 6 is provided with the window 61 of a strip along its length, and the left and right sides end face of the two ends of this window 61 and plastic cement fluorescent tube 6 keeps suitable distance.

In order to prevent that dust from entering the LED fluorescent tube, also can set up 2 anti-dust filter meshes 9, these 2 anti-dust filter meshes 9 are assemblied in the top of air inlet 1 and air outlet 4 respectively.

Embodiment 2, referring again to Fig. 5, Fig. 6 and Fig. 2.The structure of the external power supply formula LED light fixture of the band heat abstractor of present embodiment is substantially the same manner as Example 1, and difference only is that described plastic cement fluorescent tube 6 is 3.So 5.1 in its rectangle lamp panel 3.1 and external power supply box will be widened, its fan 8, power panel 2, air inlet 1, ventilating opening 31 and 4 of air outlets will become 3 respectively.

In like manner, if desire is increased to 2,4,5 or more a plurality ofly also be fine with the fluorescent tube in the lamp panel.

Only be the preferred embodiment of the utility model below, but it does not limit practical range of the present utility model, the equivalent variations and the modification that promptly do not depart from claim of the present utility model and done must belong to the protection domain of the utility model.

Claims

1. external power supply formula LED light fixture with heat abstractor, the plastic cement fluorescent tube that comprises at least one high light transmittance, the two ends of this fluorescent tube are respectively arranged with 2 contact pins, be assemblied in the aluminium base in the fluorescent tube, one power panel, by with power panel on fixing a plurality of LED of array on the aluminium base lower surface of the series-parallel mode of out-put supply of control circuit; Wherein an end of contact pin is electrically connected with civil power, and its other end is electrically connected with control circuit on the power panel, and the control circuit on the power panel is luminous with direct current and driving LED that civil power is converted to appropriate voltage, it is characterized in that also having:

2. the external power supply formula LED light fixture of band heat abstractor according to claim 1 is characterized in that 2 anti-dust filter meshes in addition, and these 2 anti-dust filter meshes are assemblied in the top of air inlet and air outlet respectively.

3. the external power supply formula LED light fixture of band heat abstractor according to claim 1 and 2 is characterized in that described plastic cement fluorescent tube is 2 or 3 or a plurality of.