CN201072112Y - Horizontal type LED lamp with air convection warehouse - Google Patents

Horizontal type LED lamp with air convection warehouse Download PDF

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Publication number
CN201072112Y
CN201072112Y CNU2007201733378U CN200720173337U CN201072112Y CN 201072112 Y CN201072112 Y CN 201072112Y CN U2007201733378 U CNU2007201733378 U CN U2007201733378U CN 200720173337 U CN200720173337 U CN 200720173337U CN 201072112 Y CN201072112 Y CN 201072112Y
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heat sink
air
pin
led lamp
lamp
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Expired - Fee Related
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CNU2007201733378U
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Chinese (zh)
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王其林
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Individual
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Abstract

The utility model relates to a horizontal type semiconductor LED lamp with a heat radiating structure of an air convection warehouse. The casing body is divided into a rear circular cylinder and a front circular cylinder, the casing body is divided into two air flowing warehouses through a circular aluminum radiating plate, a rectangular aluminum heat radiating plate and a semicircle aluminum heat radiating plate, air inlet holes, air outlet holes or breathing holes are respectively arranged on the casing body and the aluminum heat radiating plate, and an internal heat radiating fin or an air flowing channel is respectively arranged in air flowing warehouses; the casing body presents a concave-convex sawtooth shape; the circumferences of an LED luminophore, a circuit board, and a power supply constant current source integrated circuit board are separated from the air flowing warehouse through the aluminum radiating plate; air outlet holes are arranged at the connecting point of a lamp cover and a lamp cap, an outer cover covered at the end part is arc-shaped, and air inlet holes are arranged on the outer cap; the lamp cap adopts a general screw lamp cap and a bayonet lamp cap; the air flowing warehouse can take above 25 percent of internal heat away, and eliminates the effect that the heat is accumulated along with the increasing of the operating time during the light emitting process, thus effectively solving the problem that the heat elimination is difficult.

Description

A kind of horizontal type LED lamp with cross-ventilation storehouse
Technical field
The utility model relates to a kind of horizontal type semiconductor LED (Lingtemitting diode) lamp with cross-ventilation storehouse radiator structure.
Background technology
LED lamp power consumption is low, huge energy-saving effect is arranged.A 100W is 8 meters apart from ground level, and illumination is 30LUX, and light is well-illuminated to be the electricity-saving lamp of 4800LM, with the LED lamp ratio of same index, LED lamp power consumption only be electricity-saving lamp 1/5th, common tengsten lamp 1/20th to a thirtieth.LED also have the life-span long, volume is little, can design strong advantages such as (promptly realizing the random layout of illumination light).Over past ten years,, there are many countries not stint the input huge fund in the world for the potential advantages of further developing LED, aspect industrialization technology of realizing high-power, high-efficiency LED chip production technology or the like.In 1998, the U.S. started " national semiconductor lighting plan " in succession in 2000 as Japan.The project verification of China calendar year 2001 863 Program, in June, 2003 emergency start " national semiconductor lighting engineering ".Now, owing to cracked gradually and grasped in chip-count, the excitaton source of carrier injection generation different color and technical process such as proportion relation, the manufacture difficulty of brightness, make the LED lamp realize the advantage that working voltage is low, usefulness is high, volume is little, stability is strong, the response time is short, color can be changeable.As the power source of LED illuminator, promptly voltage and current then is the key of LED lamp.Power supply, constant-current source are made up of many electronic devices, and the heat that they distribute in the work causes the electronic device damage, and even directly influences the system-wide service behaviour life-span.The LED lamp of former instinct operate as normal more than 50,000 hours just can't be discharged because of high heat in the work, be difficult to break through 10,000 hours in actual applications, and the hundreds of of can only working that has is hour just no longer luminous.For solve heat that the LED lamp come out and the heat that comes out for LED illuminating circuit system in luminescence process, basically all be that power supply, constant-current source, LED are divided into two partly assemblings to the above high-powered LED lamp of 10W in the world at present, spread heat is handled.On the solution heat dissipation problem, nearly all adopt the way of dispelling the heat by fin in the arc mode at the back side of LED illuminator.Make volume very big and weight is very heavy in order to reach certain area of dissipation.Not only the cost height uses inconvenience, and volume is big, also fundamentally solves as how enough area of dissipations or radiating mode and realizes that whole circuit is in the problem of working under the normal temperature.This defective has limited the extensive use of LED lamp to a great extent.This is to cause the LED lamp particularly high-powered LED lamp can not widespread usage and one of the reason of popularization.Former two is that the LED lamp costs an arm and a leg therefore, this is because LED illuminator self price height, in addition in light fixture manufacturing and assembling process for reducing heat build-up then with power supply with constant-current source independently is made and assemble, cost of manufacture height not only, the special installation apparatus of employing also makes and holds at high price.The key of heat radiation depends on heat sink material and area of dissipation and ventilation degree.And the cross-ventilation heat radiation is the forbidden zone of LED lamp, enters the LED light fixture for preventing air, and the way that seals is nearly all adopted in the not oxidized and corrosion of holding circuit and electric elements, emphasizes water resistance, and this just causes difficulty to heat radiation.At present, the application of LED lamp also only limits to power below 10W in the world, how to solve the LED lamp as an above-mentioned difficult problem that occurs in the lighting engineering, make the LED lamp particularly high-powered LED lamp can widespread usage and promote then be the focus that people pay close attention to and capture in the current LED lamp application technology.
The utility model content
The purpose of this utility model is in conjunction with a kind of horizontal type LED lamp with cross-ventilation storehouse radiator structure of heat radiating fin structure design according to the cross-ventilation principle, make interior hot gas of LED lamp body and external cryogenic gas formation convection current, cold and hot gas flow and exchange zone are walked hot gas, quicken heat radiation and strengthen area of dissipation and ventilation degree, solve the difficult problem of LED lamp heat radiation in limited range.
Horizontal type LED lamp with cross-ventilation storehouse described in the utility model is made up of the housing with heat sinking function, power supply and constant-current source integrated circuit plate, LED illuminator, circuit board, aluminium heat sink, interior fin, lampshade, lamp holder, light cover;
The latter half of cylinder of housing outer surface with heat sinking function for concavo-convex square profile of tooth, first half is concavo-convex square profile of tooth semicircular cylinder, establish a circular aluminium heat sink identical with drum diameter in the inboard, joint portion of cylinder and semicircular cylinder, the semicircle that circular aluminium heat sink combines with semicircular cylinder is provided with air admission hole, on cylinder, be provided with air admission hole, on semicircular cylinder, be provided with venthole, it is identical with the semicircular cylinder diameter that LED illuminator connecting circuit plate is fixed on a width, on the length rectangular aluminum heat sink identical with semicircular cylinder, the rectangular aluminum heat sink is fixed on the semicircular cylinder housing, the top is provided with the semicircle aluminium heat sink that has air admission hole above, form the mobile storehouse of an air, in flowing the storehouse, air is provided with interior fin perpendicular to the rectangular aluminum heat sink, in circular cylindrical shell, it is divided into the mobile storehouse of air by the circular aluminium heat sink that is provided with passage around two, power supply and constant-current source integrated circuit plate place position, power supply and constant-current source integrated circuit plate are placed in the place position of cylindrical shape aluminium heat sink and two circular aluminium heat sink formations, cylindrical shape aluminium heat sink and circular cylindrical shell inwall constitute airflow path, light cover is contained in the top of circular cylindrical shell, be connected with lamp holder, lamp holder is general screw socket and socket lamp holder, light cover and lamp holder junction are provided with venthole, outer cover covers on outside end and the LED illuminator, end housings is an arc, has air admission hole above.
The a part of heat loss through conduction that relies on aluminium sheet of the heat that produces during the work of LED lamp, another is partly taken away by the mobile of air in the air bin.The LED lamp is installed on the circuit board, but the heating of LED lamp partly is to be close on the heat-dissipating aluminium plate, this heat-dissipating aluminium plate is to tighten together with the housing that has heat sinking function, and the heat-dissipating aluminium plate that produces heat when directly having born the work of LED lamp is delivered to distribute heat on the housing to heat.On process implementing, housing is made concavo-convex square odontoid, be for increase with the contact-making surface of air to strengthen heat exchange area, make its radiating effect better.The housing that has heat sinking function has distributed a part of heat, and all the other heats are taken away by the moving air of air bin.Cold air enters air bin in the housing from the air admission hole on the housing, after carrying out heat exchange with hot gas, one the tunnel is passed in the heat radiation air flow hole that has on the periphery of aluminium heat sink, the ventilating duct that constitutes by circular aluminium heat sink and inner walls, venthole is taken heat outside the housing out of from light cover, one the tunnel passes the venthole of aluminium heat sink air admission hole from housing takes heat outside the housing out of, another passage of cold air is that the air admission hole from outer cover enters, pass air admission hole on the aluminium heat sink of end and enter the air storehouse of flowing, the venthole from housing is taken heat outside the housing out of.According to not having air bin and the LED lamp contrast that is provided with air bin to show: only air bin just can be taken away inner heat more than 25%.Because air bin arranged, cross-ventilatedly speed up, the heat of taking away is just many more, has eliminated LED lamp heat when luminous and can effectively solve the difficult problem of LED lamp heat radiation along with the build-up effect of the increase of working time.
In this product, the creationary cross-ventilation principle of having used has been broken at present the forbidden zone of LED lamp making in the world, and air enters the LED light fixture, the oxidized and corrosion of circuit and electric elements meeting, and the way of employing sealing is emphasized water resistance, causes difficulty to heat radiation.
The utility model effect
1, because radiating effect improves greatly, effectively raises the life-span of LED illuminator and electric elements, the shortlyest surpass 10,000 hours, realized that the life-span reached more than 50,000 hours from having become from the longest 10,000 hours the service life of high-powered LED lamp in the world at present.
2, existing product normally power supply and separately assembling of constant-current source, owing to be not one, not only needs special mounting in order to disperse heat radiation, can't be general.We change power supply and constant-current source into the one assembling, and are not only easy for installation, can be general, also saved cost.Example: as present street lamp in the street, change and use the LED lamp,, except attractive in appearance, also need other facility complete removal except that lamp stand is fallen, reinstall the LED lamp with LED lamp in the past.So not only the cost of material (accessory) will improve, and artificial mounting cost also will increase.Such one tears a dress open, and each street lamp approximately will increase by 500 yuan of installation costs (light fixture of special lamp, part, outer cover, power pack can be saved 400 yuan, 100 yuan of labour costs).And the present invention need only use the expense of Gao Dengche, labour cost to be about 50 yuan LED lamp stubborn getting final product on transitional street lamps.
3, the cost of manufacture of LED lamp of the present invention significantly reduces, and the LED lamp on original market is to increase area of dissipation at the back side of LED illuminator with arc or taper mode, and area is very big, volume is very heavy.
4, because the volume of LED lamp and body weight reduce and alleviate, make lamp holder can use general screw socket or socket, be convenient to the universal use of LED lamp.
LED lamp with 21W is an example:
LED lamp weight on original market is 2.5 kilograms.
LED lamp weight of the present invention only is 1 kilogram.Each LED lamp can be saved 1.5 kilograms of aluminiums.Minimum market price by present aluminium ingot: per kilogram is 22 yuan of calculating, and it is 33 yuan that each LED lamp can be saved the aluminium valency.
In addition, the independent assembling of power supply need increase by 50 yuan of costs approximately.
Only this example shows: the LED lamp on using LED lamp of the present invention and using original market is compared, and the LED lamp of each 21W can be saved 533 yuan of usage charges.
The another final purpose that the invention solves LED lamp product is the expensive problem of LED lamp cost.
Description of drawings
Figure 121 W horizontal type LED modulated structure schematic diagram.
Figure 22 1W horizontal type LED lamp A-A face structural representation.
Fig. 3 power supply and constant-current source integrated circuit circuit.
1. air admission holes wherein, 2. air admission hole, 3. outer cover, 4.LED illuminator, 5. circuit board, 6. aluminium heat sink, 7. aluminium heat sink, 8. air admission hole, 9. the air storehouse of flowing, 10. airflow path, 11. power supplys and constant-current source integrated circuit plate, 12 aluminium heat sinks, 13. housing, 14. aluminium heat sinks, 15. aluminium heat sinks, 16. light covers, 17. venthole, 18. lamp holders, 19. air admission holes, 20. ventholes, 21. the aluminium heat sink, 22. outer covers, 23. interior fin, 24. screws.
The specific embodiment
Present embodiment is an example with 21W horizontal type LED lamp, and the horizontal type LED lamp with cross-ventilation storehouse described in the utility model is made up of the housing 13 with heat sinking function, power supply and constant-current source integrated circuit plate 11, LED illuminator 4, circuit board 5, aluminium heat sink, interior fin, light cover 16, lamp holder 18, outer cover 3;
Have that housing 13 outer surfaces of heat sinking function are latter half of to be concavo-convex square profile of tooth cylinder, first half is concavo-convex square profile of tooth semicircular cylinder, a circular aluminium heat sink 7 identical with drum diameter is established in the joint portion of cylinder and semicircular cylinder, the semicircle that circular aluminium heat sink 7 is connected with semicircular cylinder is provided with air admission hole 19, on cylinder, be provided with air admission hole 8, on semicircular cylinder, be provided with venthole 20, it is identical with the semicircular cylinder diameter that LED illuminator 4 connecting circuit plates 5 are fixed on a width, on the length rectangular aluminum heat sink 6 identical with semicircular cylinder, rectangular aluminum heat sink 6 is fixed on the semicircular cylinder housing, the top retaining is put the semicircle aluminium heat sink 21 that has air admission hole 1 above, form the mobile storehouse of an air, in air flows the storehouse, be provided with and be fixed on interior fin 24 on the housing 13 with screw 23 perpendicular to rectangular aluminum heat sink 6, be provided with the circular aluminium heat sink 14 of passage around in circular cylindrical shell, fixing two, 15 will be divided into the mobile storehouse 9 of air in it, power supply and constant-current source integrated circuit plate 11 place positions, power supply and constant-current source integrated circuit plate 11 are placed on cylindrical shape aluminium heat sink 12 and two blocks of circular aluminium heat sinks 14, in 15 place positions that constitute, cylindrical shape aluminium heat sink 12 and circular cylindrical shell 13 inwalls constitute airflow path 10, light cover 16 is contained in the top of circular cylindrical shell, be connected with lamp holder 18, light cover 16 and lamp holder 18 junctions are provided with venthole 17, end housings 22 is an arc, have air admission hole 2 above, outer cover 3 covers on the LED illuminator 4, and lamp holder is general screw socket and socket lamp holder.
Constant-current source circuit is as follows:
1 pin of resistance R 2 is connected with the positive pole of LED illuminator, and is connected with+24V positive source; 2 pin of resistance R 2 are connected with the tie point of 1 pin of 2 pin of triode Q2 and triode Q3; 1 pin of triode Q2 is connected the back and is connected with 3 pin of triode Q3 with 1 pin of resistance R 6,1 pin of resistance R 7 is connected with the tie point of 3 pin of 1 pin of triode Q2 and triode Q3; 2 pin ground connection of 3 pin of triode Q2,2 pin of resistance R 6, resistance R 7; 2 pin of triode Q3 are connected with the negative pole of LED illuminator;
Power circuit is as follows:
1 pin of capacitor C 1 is connected with civil power+220V with 1 pin of eddy current circle T1 respectively; 2 pin of capacitor C 1 are connected with civil power-220V with 2 pin of eddy current circle T1 respectively; 3 pin of eddy current circle T1 are connected with 1 pin of temperature and resistance RT; 2 pin of temperature and resistance RT are connected with 1 pin of rectifier D1; 4 pin of eddy current circle T1 are connected with 3 pin of rectifier D1; The 4 pin ground connection of rectifier D1; Be connected 2 pin ground connection of capacitor C 2 with 1 pin of capacitor C 2 behind 2 pin of the 2 pin connection voltage-stabiliser tube D2 of rectifier D1 and 1 pin of transformer T2; 1 pin of voltage-stabiliser tube D2 is connected with 2 pin of fast recovery diode D3; Be connected with 1 pin of pulse width modulated inverter Q1 behind 2 pin of the 1 pin connection transformer T2 of fast recovery diode D3; The 2 pin ground connection of pulse width modulated inverter Q1; Be connected the 2 pin ground connection of diode D6 with 1 pin of diode D6 behind 3 pin that 3 pin of pulse width modulated inverter Q1 connect optocoupler U2 and the tie point of 1 pin of resistance R 5; 2 pin of resistance R 5 connect 1 pin of capacitor C 8; 2 pin of 2 pin of capacitor C 8,1 pin of capacitor C 7, capacitor C 5, the 6 pin ground connection of transformer T2; 3 pin of transformer T2 are connected with 1 pin of fast recovery diode D5; 2 pin of fast recovery diode D5 are connected with 1 pin of 1 pin of capacitor C 3, L1,1 pin of optocoupler U2,1 pin of diode D7; 2 pin ground connection of 4 pin of transformer T2,2 pin of capacitor C 3, capacitor C 4; 5 pin of transformer T2 are connected with 1 pin of diode D4; 4 pin of 2 pin of diode D4,1 pin of capacitor C 5, optocoupler U2 connect; 2 pin ground connection of 6 pin of transformer T2, capacitor C 5; 2 pin of optocoupler U2 are connected with an end of resistance R 1; 1 pin of 3 pin of the other end of resistance R 1, voltage reference U1,2 pin of diode D7, capacitor C 6 connects; 2 pin of 2 pin of voltage reference U1,2 pin of capacitor C 7, resistance R 4 are connected with ground; Be connected with 2 pin of resistance R 3 behind 2 pin of the 1 pin connection capacitor C 6 of voltage reference U1 and 1 pin of resistance R 4; 2 pin of inductance L 1 connect 1 pin of resistance R 3 and 1 pin of capacitor C 4 is connected, and are connected 2 pin ground connection of capacitor C 4 with+24V positive source again.

Claims (1)

1. horizontal type LED lamp with cross-ventilation storehouse, by housing with heat sinking function, power supply and constant-current source integrated circuit plate, the LED illuminator, circuit board, the aluminium heat sink, interior fin, lampshade, lamp holder, light cover is formed, it is characterized in that: the latter half of cylinder of housing outer surface for concavo-convex square profile of tooth with heat sinking function, first half is concavo-convex square profile of tooth semicircular cylinder, establish a circular aluminium heat sink identical with drum diameter in the inboard, joint portion of cylinder and semicircular cylinder, the semicircle that circular aluminium heat sink combines with semicircular cylinder is provided with air admission hole, on cylinder, be provided with air admission hole, on semicircular cylinder, be provided with venthole, it is identical with the semicircular cylinder diameter that LED illuminator connecting circuit plate is fixed on a width, on the length rectangular aluminum heat sink identical with semicircular cylinder, the rectangular aluminum heat sink is fixed on the semicircular cylinder housing, the top retaining is put the semicircle aluminium heat sink that has air admission hole above, form the mobile storehouse of an air, in flowing the storehouse, air is provided with interior fin perpendicular to the rectangular aluminum heat sink, in circular cylindrical shell, it is divided into the mobile storehouse of air by the circular aluminium heat sink that is provided with passage around two, power supply and constant-current source integrated circuit plate place position, power supply and constant-current source integrated circuit plate are placed in the place position of cylindrical shape aluminium heat sink and two circular aluminium heat sink formations, cylindrical shape aluminium heat sink and circular cylindrical shell inwall constitute airflow path, light cover is contained in the top of circular cylindrical shell, be connected with lamp holder, lamp holder is general screw socket and socket lamp holder, light cover and lamp holder junction are provided with venthole, outer cover covers on outside end and the LED illuminator, end housings is an arc, has air admission hole above.
CNU2007201733378U 2007-09-25 2007-09-25 Horizontal type LED lamp with air convection warehouse Expired - Fee Related CN201072112Y (en)

Priority Applications (1)

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CNU2007201733378U CN201072112Y (en) 2007-09-25 2007-09-25 Horizontal type LED lamp with air convection warehouse

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Application Number Priority Date Filing Date Title
CNU2007201733378U CN201072112Y (en) 2007-09-25 2007-09-25 Horizontal type LED lamp with air convection warehouse

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CN201072112Y true CN201072112Y (en) 2008-06-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101769489B (en) * 2008-12-31 2012-06-13 富准精密工业(深圳)有限公司 Light-emitting diode illuminating device and lamp installation element thereof
CN103697340A (en) * 2012-09-28 2014-04-02 启东恒瑞防爆通讯电气有限公司 LED (Light Emitting Diode) explosion-proof lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101769489B (en) * 2008-12-31 2012-06-13 富准精密工业(深圳)有限公司 Light-emitting diode illuminating device and lamp installation element thereof
CN103697340A (en) * 2012-09-28 2014-04-02 启东恒瑞防爆通讯电气有限公司 LED (Light Emitting Diode) explosion-proof lamp

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080611

Termination date: 20091026