CN201246718Y

CN201246718Y - LED illuminating apparatus

Info

Publication number: CN201246718Y
Application number: CNU2008201278550U
Authority: CN
Inventors: 藤井乔; 牧野周一
Original assignee: Cai Wuxin; YAMATO LAMP INDUSTRIAL Co Ltd
Current assignee: Cai Wuxin; YAMATO LAMP INDUSTRIAL Co Ltd
Priority date: 2008-07-22
Filing date: 2008-07-22
Publication date: 2009-05-27
Anticipated expiration: 2018-07-22

Abstract

The utility model relates to a LED illumination device, comprising an upper box part containing a cooling fan internally; a lower box part arranged under the upper box part, provided with an internal heat radiator and provided with a LED on the heat radiator; and a filament type vacuum tube socket at the top end of the upper box part. The utility model arranges a cooling fan to intake and discharge air, to improve the heat dissipation effect of the heat radiator, thereby resolving the short service life problem of LED caused by heat generation of the LED. The LED illumination device adopts a filament type vacuum tube socket, to realize direct application on the sockets of prior filament type illumination devices.

Description

The LED lighting device

Technical field

The utility model relates to a kind of lighting device, particularly a kind of LED lighting device that is fitted in original light socket.

Background technology

Original in tengsten lamp or various filament lighting lamp as light source, to be replaced by the perfect light source of long power saving again of life-span, with as desirable light source in future, and the semiconductor LED lighting device is because of the good advantage of its environmental performance, use more and more generally, also enjoy expectation.

The LED lighting device has possessed several advantages, can flexible Application on the illuminating irradiator of big electric power, supplying with on the electricity, also can use the socket power supply of existing filament vacuum tube, this by from original device directly can then the characteristics of utilization are quite easily.And use original filament vacuum tube base directly to power to the device of LED illumination, just former, it is known to us that several examples are arranged, in order to power to light emitting diode, the power supply unit of supply power and the employed metal lid of the connecting portion of bulb are to belong to same shape, also are that original ligthing paraphernalia can be installed.(for example: please refer to the Japan Patent spy and open the 2006-202864 communique).

In addition as the pressure device of machine or back lighting electricity consumption decorations in the mobile phone or bullet cut electricity decorations, concerning this similarly be the compact LED as the thin slice, the degree of the about 0.07W of consumption electric power, it is very low generate heat, trace arrives almost non-existent stage.But with as the sizable LAMP lighting use of illumination, with regard to power led, the caloric value that such illuminance is big at last, the heat radiation countermeasure of this moment will be very to need.Concerning the structure of handling such heat dissipation problem, similarly be the lighting device of this structure that uses with heat liberation board of the cooling unit of frigorific unit, people are also quite familiar.(for example: please refer to the Japan Patent spy and open the 2005-77468 communique).

Yet, the situation of use frigorific unit, because of control circuit or the like also is necessary, at complicated time of such multimachine structure, the price of part portion product is also higher by comparison, may cause the price of entire lighting device integral body surging.

In general, be reach consumption electric power about about 70% from the caloric value of LED, but monomer also has the power led of 1W～5W, surpasses 100 ℃ approximately during driving, to around Temperature Influence can not turn a blind eye to.And according to the heating of this light emitting diode, there is the tendency of extreme reduction in the life-span of the own body of light emitting diode, compares life-span can use for a long time unlike bulb with bulb.

For such a power LED, use radiator, can allow the life-span prolong.The equipment that the astigmatism hot plate is such, because the effect of natural heat release, radiator itself can become and maximize very much, except original filament vacuum tube base can directly use, does not have other purposes.For example say: about temperature will keep the situation of the temperature of LED below 40 ℃, when using the radiator of nature cooling type, adopts the aluminium sheet of general wide usefulness to do about 30cm ²/ W is in the time of the Lamp commercialization, because therefore the miniaturization or the reason of design very seldom arrive the high lighting device of practicality.In addition, when forming bigger heat sink or radiating wing, when using without, except large-scale heat sink radiating wing, also must consider waterproof technique.

In view of this, the utility model proposes a kind of having concurrently and solves the LED lighting device that heating problem and life-span grow under the prerequisite that original compact illumination equipment be fit to use easily, effectively to overcome above-mentioned problem such as described.

Summary of the invention

Main purpose of the present utility model is the defective that overcomes above-mentioned prior art, and a kind of LED lighting device is provided, and with good solution heating problem, has prolonged the service life of LED.

In order to achieve the above object, the utility model provides a kind of LED lighting device, and it consists predominantly of, and box portion, is embedded the filament vacuum tube base that is positioned at box portion top in the following box portion and of last box subordinate side on one.Include an electronic circuit portion in the last box portion; An and cooling fan that is electrically connected with electronic circuit portion.And include down the radiator of a contiguous described cooling fan in the box portion; And at least onely be electrically connected with electronic circuit portion, and a side is being connected the LED of radiator; And, a filament vacuum tube base, it is positioned at described top of going up box portion.

The beneficial effects of the utility model are:

1, the heat that LED is produced can loose fast from, prolong life-span of LED.

2, control the running of cooling electric fan with the signal of inductor, save the consumption of electric energy and the brightness of control LED.

3, can directly use the light socket of original fluorescent lamp to power.

4, the function that has the air fragrance deodorizing.

Description of drawings

Fig. 1 is the part perspective diagram of LED lighting device of the present utility model.

Fig. 2 is the structural map section of LED lighting device of the present utility model.

Fig. 3 is structural map section when cooling air flow exemplary graph of LED lighting device of the present utility model.

Fig. 4 is other exemplary graph of structural map section when cooling air flow of LED lighting device of the present utility model.

Fig. 5 is another other exemplary graphs of structural map section when cooling air flow of LED lighting device of the present utility model.

Fig. 6 is a circuit framework system block diagram of LED lighting device of the present utility model;

Fig. 7 is another circuit framework system block diagram of LED lighting device of the present utility model;

Fig. 8 is the another circuit framework system block diagram of LED lighting device of the present utility model;

Fig. 9 is the schematic diagram of the part perspective of another embodiment of LED lighting device of the present utility model.

Figure 10 is the structural map section of the LED lighting device of Fig. 9;

Figure 11 is the performance plot of the temperature and the life-span relation of power-type LED;

Figure 12 is the configuration schematic diagram of cooling electric fan of the present utility model, radiating part and LED;

Figure 13 is that Figure 12 is seen the schematic diagram that gets off by the direction of principal axis of electric fan;

Figure 14 is the distortion schematic diagram of Figure 12;

Figure 15 is another configuration schematic diagram of cooling electric fan of the present utility model, radiating part and LED;

Figure 16 is that Figure 15 is seen the schematic diagram that gets off by the direction of principal axis of electric fan;

Figure 17 is the distortion schematic diagram of Figure 15;

Figure 18 is another configuration schematic diagram of cooling electric fan of the present utility model, radiating part and LED;

Figure 19 is that Figure 18 is seen the schematic diagram that gets off by the direction of principal axis of electric fan;

Figure 20 is the distortion schematic diagram of Figure 18.

Description of reference numerals: 10-LED lighting device; 11-metal cap; The 12-spire; 13-contact portion; 14-box portion (CASE); 15-cover (hood) portion; The 16-peristome; 17-electronic circuit portion; 18-cools off electric fan; The 19-radiator; 20-LED; 21-pedestal portion; The 22-inductor; 23-irradiation side box portion; The 25-peristome; The 31-electrode; The 32-AC/DC rectifier; The 33-control circuit; The 34-current control division; The 35-inductor; 36-LED; The 37-radiator; The 38-DC electric fan; The 41-electrode; The 43-control circuit; The 44-current control division; The 45-inductor; 46-LED; The 47-radiator; The 48-DC electric fan; The 51-electrode; The 52-AC/DC rectifier; The 53-control circuit; The 54-current control division; The 55-inductor; 56-LED; The 57-radiator; The 58-DC electric fan; The 60-LED lighting device; 61-metal cap; The 62-spire; 63-contact portion; 65-box portion (CASE); The 66-peristome; 67-AC/DC route switching power supply; 68-cools off electric fan; The 69-radiator; 70-LED; 71-pedestal portion; 72-shines estrade; The 73-substrate; The 74-IC wafer.

The specific embodiment

Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.

Fig. 1 is the chamfer map of this form of implementation LED lighting device, and Fig. 2 is the cutaway view of Fig. 1.As Fig. 1 and shown in Figure 2, one end of this form of implementation LED lighting device 10 is original filament vacuum tube base, it includes a helical metal cap 11, the front end of metal cap 11 is provided with contact portion 13, metal cap 11 slightly become cylindraceous around face be in order to screw togather the spiral groove of socket, and then formed spire 12.Other of LED lighting device 10 is distolateral, is the photoirradiated surface of LED20.The direction of principal axis of metal cap 11, the opposing face side at contact position 13 is slightly to become cylindrical shape cover cylindraceous (hood) 15, it comes be combined into by heat-resistant resins such as carbolic acid (Phenol) resins, to prevent invasions such as water drips, rainwater, the outer box of cylindrical shape cover (hood) 15 and a portion 14 continues, and outer box portion 14 has used aluminium (aluminium) or other metals to make.Box portion 14 is all the same with cover (hood) 15 be cylindrical shape, box portion 14 and periphery shroud (hood) 15 interior faces on every side at a certain distance between across, box portion 14 is configured to coaxial with periphery shroud (hood) 15.

This form of implementation LED lighting device 10 is just narrated as the back, come comparison with regard to light source, because use light emitting diode filament formula bulb volume just can be smaller, the inside of box portion 14 can dispose control circuit or the like electronic circuit portion 17, and the inside of box portion 14 is vacuum.Face has opening to form plurality of openings position 16 around the box portion 14, and opening is in order the inner air of box portion 14 will to be imported easily and to derive.Each opening 16 is slotted holes slightly in a rectangular shape, is designed to connect the face on every side of box portion 14.Opening portion 16 and become one be listed in box portion 14 around face, design equally spaced arrangement generally, guarantee the space of the very smooth circulation of air, box portion 14 is set to hollow to peristome 16.The outside of peristome 16 and periphery shroud (hood) 15 are coated generally, but are provided with at interval, and the narrow and small gap of face is in order to ventilate, can to allow the flow velocity of air increase the radiating efficiency lifting around cover (hood) 15 and the box portion 14.

In the inside of box portion 14, be equiped with small-sized cooling electric fan 18 in the limit portion of metal cap 11 that the front was narrated and opposing face, give this cooling electric fan 18 of electric current and will make swiveling wheel (rotor) revolution,, make circulation of air on every side so that can successfully dispel the heat.This cools off electric fan 18, and the axle center of electric fan is coaxial with the axle center of box portion 14, and the air that electric fan when revolution manufacturing is come out will be by the plural peristome 16 of 14 li in box portion, with as circulating.

With the photoirradiated surface side of cooling electric fan, the radiator of being made by aluminium (aluminium) metallic plate of etc.ing 19 is designed to and cools off electric fan 18 rank of joining.Radiator 19 is to be combined by the board part that can conduct heat, and possesses the structure that plural air flue is arranged, and the action of portion's corresponding cold air electric fan 18 in surface parts surface of described plank, and allowing air flow make the surface radiating of radiating part 19.This radiator 19 is being connected with the inside side of the following LED20 that will illustrate, makes thermal capacitance that LED20 produces easily be communicated to radiator 19, allows described radiator 19 cool off it then.

LED20 is designed to a linearity side by side, forms the electric power LED that each has high output separately.The base end side of each LED is provided with a platform base 21, and the pedestal position of radiator 19 is being connected 21.Radiator plane of illumination side forms dimetric export mouth, and air imports easily or derives, the action of corresponding cooling electric fan 18, and the air of circulation will be by near the LED20.The side of LED20 is provided with inductor 22 in addition, and this inductor 22 can have the function of so-called human inductor function and sunset inductor and shading value inductor.Inductor 22 and metal cap 12 adjacent sides just are being connected electronic circuit portion 17, and this electronic circuit portion 17 is that a various circuit that allows can transmit the structure of signal.

These LED20 and box portion 14 all are the elongated shape of box portion 14, the shadow surface of box portion 14 is the inside that is incorporated in box portion 23, the end edge portion of shadow surface side box portion 23 is toroidal and a peristome 25 is arranged that from that peristome 25, LED20 can penetrate light.Shadow surface side box 23 is that the down that screws togather easily lumps together with the structure of box portion 14, if will change the part of the inside the time, shadow surface side box 23 can be separated with box portion 14 and implement exchanging operation.

The LED lighting device of this form of implementation is to be screwed on mutually together with original filament vacuum tube base metal cap 11, therefore can use equally with general filament bulb, through passing through electric current between spire 12, metal cap 11 and the contact portion 13, each LED20 just can be lighted.The voltage that is transfused between spire 12 and the contact portion 13 is, for example supposes alternating current 100V, and the conversion that the degree of above-mentioned use electronic circuit 17 direct currents, the 10～12V of portion goes to make voltage just can allow LED20 light a lamp.In addition, the electric power that uses a part to be supplied to gives control circuit and cooling electric fan, and it can be turned round.

Fig. 3～Fig. 5 is the flow direction that explanation will make air when cooling off the electric fan running.Fig. 3 and Fig. 4 are the situations that does not have cover (hood), and Fig. 5 then is the diagram that cover (hood) arranged.The example of Fig. 3, LED20 is air-breathing here, peristome 16 exhausts over there of box portion 14, (pattern) that be illustrated as air flow illustrates.Fig. 4 shows opposite, and this edge direction of peristome 16 pores of box portion 14 is air-breathing, LED20 exhaust over there, and Fig. 4 is (pattern) diagram of air flow.The air flow of Fig. 5 and Fig. 4 is same, this direction of peristome 16 pores of box portion 14 is air-breathing, (pattern) diagram of LED20 exhaust over there, and the outside of peristome 16 is provided with cover (hood) 15 more, the boundary of cover (hood) 15 and box portion 14 has the space of a ring-type, outside air-breathing from described LED lighting device then with the aid of picturesly can be understood.In addition, illustrating the suction side of also having omitted Fig. 5 can exchange with exhaust side.

These circulations of air take place because of the running of cooling electric fan, when ordinary circumstance is lit a lamp at LED20, for example say: represent with Fig. 5, allowing air produce flows, can discharge the heat that LED20 takes place, the running number of cooling electric fan 18 is generally necessarily, at answering sense temperature device or the like, and the control of the number that goes then to turn round.

Fig. 6～Fig. 8 is the circuit structure example figure (block) of the LED lighting device of form of implementation separately.The circuit structure illustration of the LED lighting device that Fig. 6 is represented is that rectifier (converter) and alternating current and galvanic conversion figure are arranged.Fig. 1 is represented is that part material with metal cap 11 constitutes electrode 31, and this electrode 31 is to receive the alternating current that the voltage of family's lamp cord commonly used is used then, supplies with 100V for example.The 100V that passes through from electrode 31 comes just to supply with AC/DC rectifier (converter) again, gives an example, and can be changed and be changed to direct current 12V.These AC/DC rectifier (converter) 32 output currents are supply control circuit 33, current control division 34, and the cooling electric fan 18 of Fig. 1, with the DC electric fan 38 of its relative conditon.

Control circuit 33 has been accepted the signal of inductor 35, and current control division 34 is for controlling the signal outlet circuit that LED36 is bright, go out.For instance, inductor 35 is the situation of human inductor, relevant people etc. are during near described LED lighting device, inductor 35 will send signal and give control circuit 33, then according to the signal that is sent, current control division 34 is understood ON, opens the function of switch, just constitutes to flow to LED36 from AC/DC rectifier (converter) 32 DC currents.In order to guarantee the LED action current of LED36 part, in upright arrangement or side by side also can, or knockdown to allow them light a lamp also passable with the luminescence unit of plural number.

This LED36 is just between radiator 37, facing to DC electric fan 38.DC electric fan 38 is supplied with DC current by AC/DC rectifier (converter) 32, just for radiator 37, often carries out easy air-breathing discharge directions and goes blowing.Therefore along with, the time that LED36 lights a lamp is long more, even if run into the heating problem of LED36, radiator 37 between among also can effectively realize the efficient of dispelling the heat causing the destiny of lifetime effectively to take preventive measures because dispel the heat bad.

Inductor 35 for instance, use the Shock inductor that human body etc. detects near inductor, the light source perception inductor that can differentiate shading value, vibrations that just can perception, the far-end remote control inductor of signal perception, can among this, go to select one or also can the final election inductor.In addition, be not to do the switching of ON with OFF according to the signal of inductor 35, be to adjust the magnitude of current, the control light source perhaps also can go to use the control of the magnitude of current to remove to control emission wavelength by its become clear state of any or more dim state.

Fig. 7 for example be 12V or the 24V that electrode 41 can give direct current, this DC voltage is by electrode 41 supply control circuits 43, current control division 44 and DC electric fan 48.DC electric fan 48 is to dry with the direction of air-breathing exhaust for radiator 47, and the LED46 between radiator 47 can be cooled off because of circulation of air.According to the signal of inductor 45, control circuit 43 is electric currents of supplying with LED46 in order to control, and removes to control current control division 44.With regard to inductor 45, usefulness is human inductor for instance, and still the inductor with other also is passable.

Fig. 8, again for other examples, electrode 51 is the voltage of general home-use lamp cord, suppose supply electrode 51 alternating current 100V, supposes to be changed into direct current 12V and supplies with AC/DC rectifier (converter) 52 again.The output of AC/DC rectifier (converter) 52 will be by control circuit 53 and Current Control 54 outputs.Current control division 54 outputs are in order to supply with LED56.Inductor 55 is a temperature inductor, again signal is being delivered to control circuit 53 after doing temperature detection around the LED56.LED56 and radiator 57 belong to mechanical and are engaged togather, and in order to be engaged togather with radiator 57, therefore are provided with a DC electric fan 58.Therefore, under the situation that LED 56 lights a lamp, temperature inductor 55 detects temperature, judge under the very high situation of LED 56 temperature on every side according to control circuit 53, the little current value of current control division output heat radiation is as the switching of electric current, allow DC electric fan 48 turn round, go heat radiation, can form the action of heat radiation by radiator 57.DC electric fan 48 does not need usually to turn round always, so just can save the more power saving of a lot of consumption electric power.

Fig. 9 is other the oblique view of a part of tangent plane of enforcement kenel of LED lighting device of the present utility model, and Figure 10 is the sectional drawing of this morphologic correlation LED lighting device.The metal cap 61 of LED lighting device 60 1 ends of this enforcement kenel for screwing togather with existing filament vacuum tube base; Metal cap 61 front ends are provided with contact portion 63; Face around the slightly circular shape of metal cap 61 for the spiral helicine groove with socket screws togather, has therefore just formed spire 62.The photoirradiated surface that an other side of LED lighting device 10 is LED70.

From such a metal cap 61 to LED70 whole lids is exactly that this lid is designed to cover whole peripheral part as a very big lid that hangs mitriform 65.Image pattern 2 is represented, generally in cover section 65 inside, the tabular estrade 77 that the AC/DC route switching power supply of metal cap 61 opposite sides is 67 li is one and stops platform, element 78 is just among 77 estrades, the photoirradiated surface of part estrade 77 internally, cooling electric fan 68 and radiating part 69 are the same districts that belong to integrally formed.

With regard to face around the box portion 65, be provided with the peristome of the rip cutting strip (silt) of plural short palisade along box portion 65 axial extending directions.The position of these some peristomes 66 is near hanging near the LED70 side end of mitriform box portion 65, around all concentrating on, the folder of cover portion 65 every the center oppose aspect (face) also can centrality ground setting.The position of peristome 66, just the same as described later, in order to allow the flow direction of cooling air and the direction of principal axis of cover portion 65 present vertical side's direction, the aspect of the air gateway in (block) zone of cooling electric fan 68 and radiating part is configured to concentrate separately.

Cooling electric fan 68 is the shelf structures (frame) that slightly become dimetric (plastics) synthetic resin to make, has the electric fan functional configuration that can turn round, give these cooling electric fan 68 electric currents and just can make rotor revolution running, make heat radiation on every side, can produce allowing air flow.

This cools off electric fan 68, is designed to present vertically with the axle of electric fan and the direction of principal axis at cover position 65, and the electric fan air that manufacturing is come out when turning round will flow by the designed plural opening 66 of cover position 65 peripheric surfaces.Heat unit 69 slightly becomes the structure of square shape, has plank to follow between plank superimposed structure across the plank of plural number, and the space of plural number is the path function of air between plank, and the hot gas of radiating part 69 is path by this space exactly, derives the outside of described device.That metal cap 61 of radiating part 69 is connected with estrade 77, and the LED side is shone side stage 72 exactly and is engaged togather with estrade 77.The inboard fixed position 75 that hangs bell jar is fixed on the irradiation side estrade 72.Radiating part 69 and these irradiation side stage 72 or inner estrade 77 are all fixed, and can dispel the heat from those parts, and it is very good that the effect of heat radiation can reach.

In the inside of hanging mitriform cover 65, the next door in the zone of cooling electric fan 68 and radiating part 68 to be decided electric current and has therefore been installed substrate 73 for LED70 in order to supply with, and put a slice IC wafer 74 on substrate 73.This decides the next door that substrate 73 that electric current uses also can be configured in AC/DC (switching) the route switching power supply 67 of inner estrade 77, to do configuration like this, IC wafer 74 can promote heat radiation near radiating part 69, also can increase the stability of circuit on circuit.

LED70 is designed to 3 and is listed as straight line, the POWERLED of the high output of each self-forming.Each LED70 base end side is provided with tabular pedestal portion, and the side of radiating part 69 has across a pedestal portion 71 and is being connected.The photoirradiated surface of LED70 in addition, a useful transparent resin lid 64 bonds together with the cover end section that hangs mitriform.

The heat that LED70 produced is by the space 69s derivation hot gas of radiating part 69.Radiating part 69, irradiation side stage 72 or cover portion 65 equally all are aluminium metal materials such as (aluminium), so some light that broken away from by the ejaculation direction of LED70 also can be reflected, similarly be the same function of speculum, transparent resin cap 64 is the camera lens of instead of optical diffusion usefulness effectively.

The LED lighting device that such structure is arranged, metal cap 61 energy and original filament vacuum tube base are screwed on together mutually, can the bulb that it is used as general filament be used equally, the electric current between spire 62 and the contact portion 63, it is shinny to allow each LED20 light a lamp.Input voltage between spire 62 and the contact portion 63 is, such as the 100V of alternating current can be arranged, and does voltage transformation via AC/DC (switching) route switching power supply 67, and it is shinny to allow LED70 light a lamp.In addition, the electric power of part supply is will use in the control circuit or the action of cooling electric fan 68.

And, this implementation type form, in order to cool off, air can be circulated, from cooling electric fan 68 when blowing air onto radiating part 69, the order of air is to cooling electric fan 68 from peristome 66, arrive radiating part 69 again, go over to the sequential flow of the peristome 66 of opposition side again, opposite it's time to cool off electric fan 68 attraction air from radiating part 69, the order of air is that peristome 66 goes to flow to the order of the opening 66 of cooling electric fan 68, opposition side to radiating part 69, and linearly separately air flows, and therefore the efficient of heat radiation is very good.

And, on diagram, omit to some extent, configurations such as deodorant and aromatic are arranged near peristome 66, allow when use in the lavatory, cooling electric fan 68 is along with air flows, allow described LED arranged illumination devices place can utilize this function to suppress foul smell and produce, this also is a rare advantage.

Figure 11 is temperature and the life relation figure of POWER LED.Represented just as Figure 11, keep the low words comparison of LED temperature can allow the life-span of LED long.Give an example, when hypothesis uses the POWER LED of 2.5W, require its life-span must have by 50,000 hours, the temperature of that LED just must remain on below 47 degree Celsius.With such viewpoint, reach long-life like this target is certainly in the temperature of LED, according to target temperature design cooling mechanism, just can make the LED life-span elongated then.

Secondly, please be on one side referring to figs 12 to Figure 20, it illustrates the critical elements allocation plan of cooling electric fan of the present utility model, radiating part and LED.At first, on the represented axle for dimetric cooling electric fan 81 of Figure 12 and Figure 13 3 LED83 of configuration are arranged, the radiating part 82 of square shape is disposed in LED83 and cooling between the electric fan 81 then.Just represented as Figure 13, therefore radiating part 82 has formed 6 peristomes 84 in order to allow air flow cool off the direction of principal axis of electric fan 81, and the cooling electric fan is in running, and air flows will pass through peristome 84, allows to realize cooling effect.

Figure 14 is represented to be that the device of Figure 12, Figure 13 changes legend, and 3 LED85 of configuration are arranged on the estrade on the plectane, is arranged on the cooling electric fan that axial place does not have on radiating part 87 and the diagram.In order to allow the direction of principal axis of air flow cooling electric fan, specially to have opened 4 openings be peristome 86 in design, allows to realize the cooling effect of wishing.

In addition, the represented figure of Figure 15 and Figure 16 is that dimetric cooling electric fan 91 is not above axle, and one side configuration on the side next door of dimetric radiating part 92 respectively has 3 LED93, totally 2 groups, and as legend.Represented as Figure 16, therefore radiating part 92 has formed 6 peristomes 94 in order to allow air flow cool off the direction of principal axis of electric fan 91, and cooling electric fan 91 in running air can be passed through, to realize the cooling effect of hope.Moreover the LED that is arranged on the sidewall of dimetric radiating part 92 has only 1 group, as Fig. 9 and shown in Figure 10.

Figure 17 is represented to be the change legend of Figure 15, Figure 16 device, has disposed 6 LED95 on the face around the radiating part 97 cylindraceous, does not draw still in connection with the cooling electric fan is arranged on radiating part 97 direction of principal axis diagram cylindraceous.In order to allow air flow cool off the direction of principal axis of electric fan, 4 peristomes 96 have been established, to realize cooling effect.Also can have only 1 group, as Fig. 9 and shown in Figure 10.

The represented figure of Figure 18 and Figure 19 is a pair of tetragonal cooling electric fan 101,102, and the centre position of cooling off electric fan then clips radiating part 103, and the face all around of dimetric radiating part 103 respectively has 3 LED104, always has 4 groups, disposes 12 altogether.As shown in figure 19, therefore radiating part 103 has formed 6 peristomes 105 in order to allow air flow cool off the direction of principal axis of electric fan 101,102, and cooling electric fan 101,102 just can pass through peristome in running, to realize cooling effect.The running of cooling electric fan 101,102 is to allow the same direction of air flow, and to the radiating part blowing, then air is derived to the outside by radiating part on the other hand on the one hand.

Figure 20 is represented to be the device change figure of Figure 18, Figure 19, and 10 LED107 of configuration are arranged above the face around the radiating part 106 cylindraceous.On radiating part 106 direction of principal axis diagram cylindraceous, do not draw but have and cool off electric fan in connection with 1 pair.In order to allow air flow cool off the direction of principal axis of electric fan, 4 peristomes 108 have been established, to realize cooling effect.

Though LED lighting device of the present utility model is supervened heat when luminous, but because of the structure that is connected radiating part is arranged, rely on cooling electric fan LED that heat is discharged by radiating part, therefore, can prevent the destiny that makes LED lighting device lifetime because of heat energy like this.

In addition,, can add a cover (hood), this this cover is arranged, just can prevent intrusions such as rainwater, moisture content in the outside of box portion according to the LED lighting device of this example.Moreover the space of the centre of cover (hood) portion and box portion is specially done narrow and small, just can make the speed air flow speed that accelerates, and makes thermolysis good.

According to other give an example of LED lighting device of the present utility model, the peristome shape that is in line separately can make the air of cooling usefulness flow, and makes very good of radiating efficiency.Moreover, can dispose deodorant or aromatic etc. near the peristome, along with the air of cooling electric fan is mobile, allows described LED arranged illumination devices place can utilize this function to suppress foul smell and produce, this also is a rare advantage.

More than explanation is novel just illustrative for this; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection domain of the present utility model.

Claims

1. LED lighting device is characterized in that it includes:

Box portion reaches box portion on one, and the wherein said box portion of going up includes:

One electronic circuit portion; And

One cooling fan, it is electrically connected with described electronic circuit portion;

Described down box portion is embedded box subordinate side on described;

Include in the box portion under described:

One radiator, its contiguous described cooling fan; And

At least one LED, it is electrically connected with described electronic circuit portion, and a side is being connected described radiator; And

One filament vacuum tube base, it is positioned at described top of going up box portion.

2. LED lighting device according to claim 1 is characterized in that, the described box portion periphery of going up is provided with a cylindrical cover, and describedly goes up box portion and described cylindrical cover has certain interval between the two.

3. LED lighting device according to claim 2 is characterized in that, the material of described cylindrical cover is heat-resisting resin.

4. LED lighting device according to claim 1 is characterized in that, the described face on every side of going up box portion is formed with plurality of openings.

5. LED lighting device according to claim 1 is characterized in that, described upward box portion is a metal material.

6. LED lighting device according to claim 1 is characterized in that, described upward box portion and described box portion down are embedded together by screw-in version.

7. LED lighting device according to claim 1 is characterized in that, described LED is a power LED.

8. LED lighting device according to claim 1 is characterized in that, described cooling fan and described radiator are closely adjacent.

9. LED lighting device according to claim 1 is characterized in that, described electronic circuit portion includes the current control division that a control circuit and is electrically connected to described LED, and described control circuit is controlled the current status of described current control division.

10. LED lighting device according to claim 9 is characterized in that, described control circuit is to be connected to an inductor, controls described control circuit by the sense conditions of described inductor.

11. LED lighting device according to claim 10 is characterized in that, described inductor is human inductor, sunset inductor, temperature inductor or shading value inductor.

12. LED lighting device according to claim 1 is characterized in that, described electronic circuit portion includes an ac/dc rectifier.

13. LED lighting device according to claim 1 is characterized in that, described box portion opening part down is equiped with a printing opacity lid.

14. LED lighting device according to claim 4 is characterized in that, disposes deodorant or aromatic near the described peristome.

15. LED lighting device according to claim 1 is characterized in that, described filament vacuum tube base includes a spiral metal cap, and face is a helical form around the described spiral metal cap, and the top is an electric contact portion.