CN101639171B - Bulb-shaped lamp - Google Patents

Bulb-shaped lamp Download PDF

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Publication number
CN101639171B
CN101639171B CN2009101608719A CN200910160871A CN101639171B CN 101639171 B CN101639171 B CN 101639171B CN 2009101608719 A CN2009101608719 A CN 2009101608719A CN 200910160871 A CN200910160871 A CN 200910160871A CN 101639171 B CN101639171 B CN 101639171B
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CN
China
Prior art keywords
radiator
substrate
bulb
distolateral
fan
Prior art date
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Expired - Fee Related
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CN2009101608719A
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Chinese (zh)
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CN101639171A (en
Inventor
别田惣彦
诹访巧
河野仁志
斉藤明子
别所诚
柴原雄右
玉井浩贵
柴野信雄
清水恵一
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008252562A external-priority patent/JP2010086708A/en
Priority claimed from JP2008252742A external-priority patent/JP2010086713A/en
Priority claimed from JP2008252567A external-priority patent/JP5246404B2/en
Priority claimed from JP2008280062A external-priority patent/JP5062433B2/en
Application filed by Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp
Publication of CN101639171A publication Critical patent/CN101639171A/en
Application granted granted Critical
Publication of CN101639171B publication Critical patent/CN101639171B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The present invention relates to a bulb-shaped lamp. A substrate is attached to one edge side of a radiator and a globe is attached covering the substrate. Heat-radiating fins are provided on the other edge side of the radiator and an air-cooling unit is rotatably provided inside the heat-radiating fins which enables to freely rotate. A case storing a circuit part A is attached to the other edge side of the radiator and a cap is provided to the case. By the wind blast from the air-cooling unit, the heat-radiating fins are caused to be a part of the ventilation path to allow for ventilation of the inside of the radiator.

Description

Bulb-shaped lamp
Technical field
The present invention relates to a kind of bulb-shaped lamp, particularly relate to a kind of bulb-shaped lamp that replaces the general illumination bulb and use.
Background technology
In the past, using Light-Emitting Diode (light emitting diode, LED) be used as in the bulb-shaped lamp of light-emitting component, the substrate that has encapsulated LED is installed in an end of radiator, and cover described substrate and lampshade (globe) is installed at an end of this radiator, and, at the other end of this radiator, be installed with and contain the box (case) that makes the lamp circuit that LED lights a lamp, and socket is installed at the other end of this box.
For this kind bulb-shaped lamp, can cause that from the heat that LED produced the temperature of LED rises, thereby the light of LED output (optical output) descends and the life-span also shortens, so suppressing the temperature of LED, requirement rises.For this reason, adopt metal material by the thermal diffusivity excellence to form the method etc. of radiator.
In addition, a kind of LED lamp is arranged, it is not the bulb-shaped lamp that possesses lampshade, for example the Japan Patent spy opens shown in the 2007-265892 communique, this LED lamp is being provided with fin at the periphery of radiator, and disposing fan (fan) in the inboard of radiator, so that the heat that is delivered to radiator from LED is dispelled the heat forcibly.
Yet, in possessing the bulb-shaped lamp of lampshade, because LED is covered with by lampshade, so it is poor to exist the radiating efficiency of following problem: LED, even if the temperature of using metal radiator also can't suppress LED fully rises.
And, suppose as the LED lamp that does not possess lampshade, even if in possessing the bulb-shaped lamp of lampshade, fin is being set on radiator, and the inboard at this radiator is disposing fan, so that the heat that is delivered to radiator from LED is dispelled the heat forcibly, the temperature that also can can't suppress LED because LED is covered with by lampshade fully rises.
This shows that above-mentioned existing bulb-shaped lamp obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of bulb-shaped lamp of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The object of the invention is, overcome the defective that existing bulb-shaped lamp exists, and a kind of bulb-shaped lamp of new structure, technical problem to be solved are provided is to make it can improve radiating efficiency and the temperature that can suppress light-emitting component rises, and is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.For achieving the above object, according to bulb-shaped lamp of the present invention, comprising: substrate is being provided with light-emitting component on the one distolateral face; Radiator, an end are installed with another distolateral face of substrate; Lampshade, covered substrate and be installed in an end of radiator; Socket is arranged on the other end of radiator; Lamp circuit is housed between radiator and the socket, and light-emitting component is lit a lamp; And the air cooling machine structure, another that can be rotatably set in radiator is distolateral, makes the inner ventilation of radiator.
Light-emitting component for example uses LED or organic electroluminescent (electroluminescence, EL) solid-state light emitting element of Denging.
Substrate for example be by metal material that comprises the good aluminium of thermal diffusivity etc. form.The substrate intercommunicating pore of substrate for example is arranged on center of substrate etc. and locates, and the distribution that LED is connected with ignition device is passed.
Radiator for example can use the either party of metal material or resin material.Distolateral at another of radiator, for example be formed with as the space that is disposing the incorporating section of air cooling machine structure.The radiator intercommunicating pore of radiator for example is arranged on center of radiator etc. and locates, and the distribution that LED is connected with ignition device is passed.
Lampshade for example is to be formed roughly sphere by the material of glass with light diffusing or resin etc.
Socket for example uses the socket of E17 type or E26 type etc., can be connected in the socket (socket) that the general illumination bulb is used.
Lamp circuit for example is the circuit that the direct current power of constant current is supplied to LED.
The air cooling machine structure for example uses Sirocco fan (sirocco fan) or centrifugal fan (centrifugal fan) etc.If the use Sirocco fan then can form the space at central part, this space can make the distribution that LED is connected with ignition device pass.Fan can rotate by the driving of the fan motor controlled by drive circuit, and can make socket energising during drive continuously by fan motor, in addition, also temperature sensor can be set, only in the detected temperature of this temperature sensor during more than or equal to set point of temperature, fan motor just can drive.Fan only is not limited to also can dispel the heat to the heat of lamp circuit to dispelling the heat to the heat of radiator transmission from LED.
And, in another distolateral inboard of radiator the air cooling machine structure is set, so that the inner ventilation of radiator can improve the radiating efficiency of radiator like this, and the temperature that can suppress light-emitting component rises.
Among the present invention, on substrate, the substrate intercommunicating pore that one distolateral face is communicated with another distolateral face is being set, on radiator, in the position that is connected with the substrate intercommunicating pore, be provided with distolateral and another distolateral radiator intercommunicating pore that is communicated with, at least one side of radiator and lampshade, be provided with and inner space and the outside air vent that is connected by lampshade covered.
Air vent for example can be one, also can be, and described air vent can only be arranged on the radiator, also can only be arranged on the lampshade for a plurality of, can also be arranged on radiator and the lampshade these both.In order to prevent preferably in air vent, to dispose ventilation filter in the intrusion lampshades such as dust or insect.
And, make the inner space that lampshade covered be connected by substrate intercommunicating pore and radiator intercommunicating pore with the air cooling machine structure, and the inner space that lampshade covered is communicated with the outside by the air vent at least one side who is arranged on radiator and lampshade, therefore, extraneous air becomes well to the cyclicity of the inner space of lampshade, thereby can improve radiating efficiency.
Among the present invention, radiator is formed by resin material.
In order to obtain sufficient thermal diffusivity, even if be resin material, described radiator also preference as possessing the heat-dissipating structure of a plurality of fin etc.
And, because radiator is formed by resin material, so that the boxes that lighting circuit insulate with respect to this radiator etc. are just inoperative, thereby can cut down the part number, realize miniaturization.
Among the present invention, radiator comprises in inside takes in the but incorporating section of mechanism of free air cooling, and the present invention possesses drive circuit, and this drive circuit is arranged on the substrate, and the air cooling machine structure is activated.
The incorporating section for example can be at another distolateral concavity that forms of radiator, also can run through radiator and forms.
Drive circuit for example is to supply with direct current power and make motor rotate the circuit that drives to the motor of air cooling machine structure.
And, the air cooling machine structure is accommodated in the incorporating section of inside of the radiator that substrate is installed, and the drive circuit that will drive this air cooling machine structure is arranged on the substrate, can save ground, space configuration air cooling machine structure and drive circuit like this, thereby can guarantee cooling effectiveness on the one hand, on the one hand corresponding to miniaturization.
Among the present invention, the air cooling machine structure comprises: fan, relatively disposing with another of substrate is distolateral: and motor, be configured between described fan and the substrate, and be installed on the either party at least of substrate and radiator, drive by drive circuit and make fan rotation driving.
And, with motor configurations that the rotation of described fan is driven at substrate and another of substrate is distolateral relatively and between the fan of configuration therewith, and this motor is installed on the either party at least of substrate and radiator, like this, motor also can cool off by the rotation of fan, so cooling effectiveness improves, and suppressed motor is carried out the space that axle supports, thus further miniaturization.
Among the present invention, drive circuit is arranged on the distolateral of substrate.
And, by drive circuit being arranged on the distolateral of substrate, can make that another of substrate is distolateral to be close to radiator with flat condition, thereby dispel the heat more efficiently.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, bulb-shaped lamp of the present invention has following advantage and beneficial effect at least: the object of the invention bulb-shaped lamp can improve radiating efficiency and can suppress the temperature rising of light-emitting component.
In sum, the invention relates to a kind of bulb-shaped lamp, one of radiator 13 distolaterally is installed with substrate 12, and covered substrate 12 and lampshade 14 is installed.Another distolateral fin 32 that is being provided with at radiator 13 is rotatably disposing air cooling machine structure 15 in the inboard of fin 32.Another distolateral box 16 that contains the A of circuit part that is installed with at radiator 13 is installed with socket 17 on box 16.By the air-supply of air cooling machine structure 15, make fin 32 as the part of ventilating path and make the inner ventilation of radiator 13.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the profile of the bulb-shaped lamp of expression first embodiment of the present invention.
Fig. 2 is the side view of bulb-shaped lamp.
Fig. 3 is the profile of the bulb-shaped lamp of expression second embodiment of the present invention.
Fig. 4 is the side view of bulb-shaped lamp.
Fig. 5 is the profile of the bulb-shaped lamp of expression the 3rd embodiment of the present invention.
Fig. 6 is the side view of bulb-shaped lamp.
Fig. 7 is the profile of the bulb-shaped lamp of expression the 4th embodiment of the present invention.
Fig. 8 is the side view of bulb-shaped lamp.
Fig. 9 is the profile of the bulb-shaped lamp of expression the 5th embodiment of the present invention.
Figure 10 is the schematic diagram of air-supply passage of the bulb-shaped lamp of expression the 6th embodiment of the present invention.
Figure 11 is the schematic diagram of the passage of the bulb-shaped lamp of expression when the socket upside is lit a lamp.
Figure 12 is the profilograph of the bulb-shaped lamp of expression the 7th embodiment of the present invention.
Figure 13 is the outside drawing of bulb-shaped lamp.
Figure 14 is the profilograph of the bulb-shaped lamp of expression the 8th embodiment of the present invention.
Figure 15 is the profilograph of the bulb-shaped lamp of expression the 9th embodiment of the present invention.
Figure 16 is the profilograph of the bulb-shaped lamp of expression the tenth embodiment of the present invention.
Figure 17 is the profilograph of the bulb-shaped lamp of expression the 11 embodiment of the present invention.
Figure 18 is the profilograph of the bulb-shaped lamp of expression the 12 embodiment of the present invention.
11: bulb-shaped lamp 12: substrate
13: radiator 14: lampshade
14a: lampshade one end 14b: the lampshade other end
15: air cooling machine structure 16: box
16a: box one end 16b: choke plate
16d: box other end 16e: flange part
17: socket 19: self-box
21: substrate body 21a, 21b: the substrate body interarea
21c: the 21d of frame portion: outer peripheral edges portion
22:LED 23: the substrate intercommunicating pore
31: radiator body 32: fin
33: fan receiving space portion 34,123: substrate installed surface
35: radiator intercommunicating pore 36: the lampshade installation portion
37,41,71: air vent 38: ventilation filter
39,72: louvre 45: Sirocco fan
46: central shaft 47: lead
51: isolated wall 52: the box intercommunicating pore
53: socket installation portion 54,62: insulation division
61: housing 63: eyelet
73: suction hole 75,85: drive circuit
77: intercommunicating pore 81: incorporating section
82: self-box 82a: self-box one end
82b: the self-box other end 87: configuring area
89,89a: linking part 91: ventilation unit
92: installing hole portion 93: motor
94: fan 96: yoke
97: permanent magnet 98: armature
101: hole portion 102: rotating shaft
102a: rotating shaft one distolateral 102b: the rotating shaft other end
105: bearing portion 107: portion of fan center
108: blade part 109: support portion
111: radiator receiving space 112: air entry
113: exhaust outlet 114: recess is installed
117: lamp circuit substrate 118: lamp circuit
121: peristome A: circuit part
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of bulb-shaped lamp, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.By the explanation of the specific embodiment, when can being to reach technological means that predetermined purpose takes and effect to obtain one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the present invention is limited.
Fig. 1 and Fig. 2 represent first embodiment, and Fig. 1 is the profile of bulb-shaped lamp, and Fig. 2 is the side view of bulb-shaped lamp.
In Fig. 1 and Fig. 2, symbol 11 expression bulb-shaped lamps, being constructed as follows of this bulb-shaped lamp 11: will be installed in the distolateral of radiator 13 as the substrate 12 of led module (LED module), and this radiator 13 one distolateral on covered substrate 12 and lampshade 14 is installed, on another of radiator 13 is distolateral, rotatably disposing air cooling machine structure 15, and box 16 is installed, contain in this box 16 comprise lamp circuit and air cooling machine structure 15 usefulness drive circuit at the interior A of circuit part, on this box 16 socket 17 is installed.And this bulb-shaped lamp 11 has and the identical total length of so-called mini krypton gas (minikrypton) bulb.
Substrate 12 has: the substrate body 21 of rounded shape when overlooking; And a plurality of, eight LED22 for example of being encapsulated in a distolateral i.e. interarea 21a side of this substrate body 21 as light-emitting component.
Substrate body 21 be by the metal material of good aluminium of for example thermal diffusivity etc. or insulating materials etc. form, and at center position, be formed with through an interarea 21a and as the substrate intercommunicating pore 23 of the circular hole of another distolateral another interarea 21b.This substrate body 21 is close to fixing by allowing another an interarea 21b and an end face of radiator 13 carry out the mode that face contacts.Substrate body 21 is fixed with respect to radiator 13, and use this moment is the adhesive that the organosilicon (silicone) of screw or heat transmitting excellence is.
Constituting of LED22 is as follows: comprise the not shown bare chip (barechip) that for example sends blue light and cover this bare chip by formed not shown resin portion such as organic siliconresins, in this resin portion, sneaked into fluorophor, this fluorophor is subjected to the exciting of a part of the blue light that bare chip sends and mainly radiates the promptly yellow light of blue complementary color, thereby each LED22 obtains the illumination light of white color system, and described LED22 has for example consumption electric power about 0.5W (power consumption).
And radiator 13 is by metal material of good aluminium of thermal conductivity etc. etc. and form, and has radiator body 31 and is arranged on a plurality of fin 32 on the outer peripheral face of this radiator body 31.Inboard at another distolateral and a plurality of fin 32 of radiator body 31 is formed with the fan receiving space portion 33 as the incorporating section of air cooling machine structure 15 being taken in configuration.
Radiator body 31 is distolaterally distolaterally to form with flat sphere-like hole enlargement towards one from another, on one end, be formed with the substrate installed surface 34 of flat condition, another interarea 21b of the substrate body 21 of substrate 12 is installed with the state of being close on this substrate installed surface 34.The center position of radiator body 31 and with the position of substrate intercommunicating pore 23 coaxial communication of substrate 12, be formed with radiator intercommunicating pore 35, it is distolateral with another through a distolateral substrate installed surface 34.On one of radiator body 31 distolateral outer edge, another distolateral end of lampshade 14 the lampshade installation portion 36 that ends of chimeric card along the circumferential direction form ring-type.In the position of this lampshade installation portion 36, all equally spaced be formed with a plurality of air vents 37 in a circumferential direction, disposing the ventilation filter 38 that has air permeability and can prevent intrusions such as dust or insect in the inboard of described air vent 37.
Fin 32 is so that the overhang of footpath on the direction distolaterally becomes big mode gradually and be formed obliquely towards one from another of radiator 13 is distolateral.And described fin 32 is roughly equally spaced to form radially on the circumferencial direction of radiator 13 each other, is formed with the louvre 39 of slit (slit) shape between described fin 32.The interval in the gap on the circumferencial direction of described fin 32 (gap) is preferably smaller or equal to 5mm.If this gap is made as smaller or equal to 5mm, then the quantity of fin 32 can increase, thereby can move and the raising radiating efficiency with the forced air supply association of air cooling machine structure 15, on the other hand, if this gap is made as greater than 5mm, then the quantity of fin 32 can be less, thereby can't improve radiating efficiency fully.
And lampshade 14 is to form flat dome shape by glass with light diffusing (light diffusibility) or synthetic resin etc., and becomes the shape that roughly links to each other with the lampshade installation portion 36 of radiator 13.On the end of lampshade 14, be formed with a plurality of air vents 41 that are communicated with the air vent 37 of radiator 13.Ventilation filter 38 is between the air vent 37 of described air vent 41 and radiator 13.
And air cooling machine structure 15 for example has: as the Sirocco fan (siroccofan) 45 of fan; And be not shown fan motor to the motor that this Sirocco fan 45 is rotated driving.This air cooling machine structure 15 rotatably is supported on the box 16 Sirocco fan 45 by central shaft 46, and on this air cooling machine structure 15 fan motor is installed.Central shaft 46 is a column, and portion's break-through within it has the lead 47 that the A of circuit part is connected with substrate 12.
Described Sirocco fan 45 is to establish an opening and periphery to dispose a plurality of blades (blade) in the central area of this Sirocco fan 45, when rotation, air in the bulb-shaped lamp 11 are sucked and discharge to the external diameter direction from the center side, thus from the louvre 39 of 32 of a plurality of fin of radiator 13 to outside exhaust.At this moment, with fin 32 as the part of ventilating path and make the inner ventilation of radiator 13.
Box 16 for example is by polybutylene terephthalate (PBT) (polybutylene terephthalate, PBT) material with insulating properties of resin etc. and form roughly cylindric.And, at a distolateral isolated wall 51 that is formed with of this box 16, and be formed with the box intercommunicating pore 52 that radiator 13 sides with an end are communicated with socket 17 sides of the other end in these isolated wall 51 upper sheds.Distolateral and another distolateral centre at box 16 is formed with the socket installation portion 53 that socket 17 is installed.On another of box 16 is distolateral, be formed with the inboard that is disposed at socket 17 and make socket 17 and the A of circuit part between the columned insulation division 54 that insulate.In addition, also can fill packing material with thermal diffusivity and insulating properties, promptly, the resin of silicon-type etc. in the mode that buries the A of this circuit part to the inside of box 16.
And the lamp circuit of the A of circuit part for example is a circuit etc. of LED22 being supplied with the direct current power of constant current, and this lamp circuit has: lamp circuit substrate and be packaged in this lamp circuit substrate and constitute a plurality of components of lamp circuit.Connecting the lead 47 of powering from lamp circuit side direction LED22 on this lamp circuit, this lead 47 passes inner space, radiator intercommunicating pore 35 and the substrate intercommunicating pore 23 of the central shaft 46 of box intercommunicating pore 52, Sirocco fan 45 and is electrically connected with substrate 12.
The drive circuit of the A of circuit part is the circuit that the driving of the fan motor of air cooling machine structure 15 is controlled, make socket 17 energising during, fan motor is driven continuously.
And, socket 17 for example is an E17 type socket, be electrically connected then with circuit part A side by not shown distribution, and comprise that housing (shell) 61 and the eyelet (eyelet) 63 of column, the housing 61 of described column possess the screw thread (screwthread) that screws in to the light socket of not shown ligthing paraphernalia; Described eyelet 63 is arranged on via insulation division 62 on the distolateral top of described housing 61.
Housing 61 is the members that are electrically connected with not shown mains side, in the inside of this housing 61, and box 16 between, sandwiched in order to not shown power line to the A of circuit part power supply, thus with respect to housing 61 and conducting.
Eyelet 63 is the parts that are electrically connected with not shown earthing potential (ground potential), on this eyelet 63, and the earth connection (earth lead) that is electrically connected and then is electrically connected by modes such as welding with the earthing potential of the A of circuit part.
Then, the action to first embodiment describes.
When carrying out the assembling of bulb-shaped lamp 11, with encapsulated LED22 etc. substrate 12 substrate body 21 another interarea 21b side mounting and be fixed on the substrate installed surface 34 of radiator 13, make substrate 12 and radiator 13 carry out heat (thermally) and combine.
Be combined to the box 16 that contains the A of circuit part and air cooling machine structure 15 is installed on the radiator 13 and card ends fixing.At this moment, make from the lead 47 of the A of circuit part and pass inner space, radiator intercommunicating pore 35 and the substrate intercommunicating pore 23 of the central shaft 46 of box intercommunicating pore 52, Sirocco fan 45 and be electrically connected with substrate 12.
Export under the state in housing 61 outsides at the power line that will be electrically connected with the A of circuit part, from another distolateral socket 17 of packing into of box 16, this socket 17 is connected the A of circuit part via earth connection with eyelet 63, sandwich power line between box 16 and housing 61.At this moment, end box 16 and socket 17 cards fixing by not shown sag and swell etc.
And covered substrate 12 open ends with lampshade 14 are embedded in the lampshade installation portion 36 of radiator 13, and the adhesive that utilizes silicon-type etc. fixed, thereby have finished bulb-shaped lamp 11.
For the bulb-shaped lamp of finishing in this way 11, on the socket that socket 17 is installed to regulation and the energising after, lamp circuit can move, via distribution to substrate 12 side supply capabilities, thereby make each LED22 luminous, these light can spread irradiation via lampshade 14.
And drive circuit can move, and supplies power to the fan motor of air cooling machine structure 15, thereby the Sirocco fan 45 of air cooling machine structure 15 is rotated.Under the effect of the rotation of this Sirocco fan 45, the air in the bulb-shaped lamp 11 are sucked from the center side, and discharge to the external diameter direction, thereby from the louvre 39 of 32 of a plurality of fin of radiator 13 to outside exhaust.
Therefore, the heat that produces from each LED22 on substrate 12 mainly is to be delivered to radiator 13 via substrate installed surface 34, and dispels the heat by the forced air supply of Sirocco fan 45 from each fin 32 of this radiator 13.
And then, under the effect of the rotation of Sirocco fan 45, the air outside of bulb-shaped lamp 11 forms following air-flow: the inner space that is sucked into lampshade 14 from air vent 37,41, pass substrate intercommunicating pore 23 and radiator intercommunicating pore 35 again and be sucked into Sirocco fan 45, and to outside exhaust.Therefore, on substrate 12, carrying out exhaust to the heat of the inner space institute bulk storage of lampshade 14 from each LED22.
And, according to the order of inner space, substrate intercommunicating pore 23 and the radiator intercommunicating pore 35 of air vent 37,41, lampshade 14, air cooling machine structure 15, louvre 39 and produced air stream, thus, extraneous air becomes possibility to the circulation of the inner space of lampshade 14, and the air output of air cooling machine structure 15 increases, thereby can improve radiating efficiency.
And, under the effect of the rotation of Sirocco fan 45, only be not limited to also can dispel the heat to the heat that circuit part's A side is produced to dispelling the heat to the heat that radiator 13 transmits from LED22.
Like this, air cooling machine structure 15 is set, and a part that makes fin 32 can improve the radiating efficiency of radiator 13 thus as ventilating path, and the temperature that can suppress LED22 rises in the inboard of the radiator 13 that a plurality of fin 32 are being set.Therefore, the brightness of LED22 can not reduce, and can prolong the life-span of LED22.
And, because on air vent 37,41, disposing ventilation filter 38, invade in the lampshade 14 so can prevent dust or insect etc.
The A of circuit part is housed in the box 16 of the insulation of being disposed between radiator 13 and the socket 17, the A of circuit part is insulated with respect to radiator 13, and can easily carry out the configuration of the A of circuit part.
And what air cooling machine structure 15 used is Sirocco fan 45, like this, can make lead 47 break-through that the A of circuit part is connected with substrate 12 in the inner space of the rotating shaft 46 of Sirocco fan 45, and these lead 47 caused fan resistances also can reduce.
Then, Fig. 3 and Fig. 4 represent second embodiment, and Fig. 3 is the profile of bulb-shaped lamp, and Fig. 4 is the side view of bulb-shaped lamp.
Radiator 13 forms the structure that is separated into cancellate structure, for example radiator (radiator) when a plurality of fin 32 are observed from another of radiator 13 is distolateral.Another distolateral air cooling machine structure 15 that is accommodated in the fan box 71 that disposing at this radiator 13.Fan box 71 is formed on the box 16, and is formed with a plurality of louvres 72 on the outer peripheral face of described fan box 71.
And, the air vent 37,41 of radiator intercommunicating pore 35, radiator 13 and lampshade 14 of substrate intercommunicating pore 23, the radiator 13 of substrate 12 is not set, be confined space but make the space between radiator 13 and the lampshade 14.
And, under effect, the air in the bulb-shaped lamp 11 are sucked from the center side, and discharge to the external diameter direction as the rotation of the Sirocco fan 45 of air cooling machine structure 15, with from a plurality of louvres 72 of fan box 71 to outside exhaust.Thus, the air outside of bulb-shaped lamp 11 forms following air-flow: pass radiator 13 32 of each fin the gap and be sucked into Sirocco fan 45 and to outside exhaust.
Therefore,, can dispel the heat by the forced air supply of Sirocco fan 45 to the heat that radiator 13 transmits from each LED22 from each fin 32 of this radiator 13.
And, because the space between radiator 13 and the lampshade 14 is a confined space, invades in the lampshade 14 and cause pollution attached to LED22 goes up so can prevent the dust that contains in air-breathing.
Then, Fig. 5 and Fig. 6 represent the 3rd embodiment, and Fig. 5 is the profile of bulb-shaped lamp, and Fig. 6 is the side view of bulb-shaped lamp.
Radiator 13 is to be formed by insulating properties and all good resin material of thermal conductivity.
Do not make lamp circuit and drive circuit with respect to radiator 13 and the box 16 of insulation just can form air cooling machine structure 15, lamp circuit and drive circuit are supported on support structure on the radiator 13.
And the space between radiator 13 and the lampshade 14 is a confined space.
Therefore, lamp circuit or drive circuit being insulated with respect to radiator 13 and the box 16 that air cooling machine structure 15, lamp circuit and drive circuit support become does not need, thereby can cut down the part number, realizes miniaturization.
And, because radiator 13 is a resin material,, for example, can form a plurality of linking part 89a that the centre position of a plurality of fin 32 is connected to each other so also can form complicated shape, can improve the intensity of a plurality of fin 32 thus.
In addition, also can in bulb-shaped lamp 11, temperature sensor be set, only the detected temperature of this temperature sensor during more than or equal to set point of temperature fan motor just can be activated.
Then, Fig. 7 and Fig. 8 represent the 4th embodiment, and Fig. 7 is the profile of bulb-shaped lamp, and Fig. 8 is the side view of bulb-shaped lamp.
One distolateral at radiator body 31 equally spaced is formed with a plurality of air vents 71 as follows in a circumferential direction, and be promptly relative with the end of lampshade 14, is communicated with the radiator air vent 35 of radiator 13, and discharges gas and directly be connected to lampshade 14.
And, on the isolated wall 51 of box 16, be formed with a plurality of suction holes 73 that are connected with box intercommunicating pore 52 and extraneous air is sucked around.
Sirocco fan 45 is sucked into air in the bulb-shaped lamp 11 from air vent 73 when rotated, and via radiator intercommunicating pore 35 in the mode that is connected to the lampshade surface from air vent 71 exhausts.
Then, the action to the 4th embodiment describes.
When carrying out the assembling of bulb-shaped lamp 11, be combined to the box 16 that contains the A of circuit part and air cooling machine structure 15 is installed on the radiator 13 and block end fixing.At this moment, make inner space, and the radiator intercommunicating pore 35 and being electrically connected that passes the central shaft 46 of box intercommunicating pore 52, Sirocco fan 45 from the lead of the A of circuit part with substrate 12.
And, lampshade 14 is so that become the mode of air-tight state in its inner space and covered substrate 12, and the open end of lampshade 14 is embedded into the lampshade installation portion 36 of radiator 13, adhesive that utilizes silicon-type etc. is fixed, thereby finishes bulb-shaped lamp 11.
And drive circuit moves, and supplies power to the fan motor of air cooling machine structure 15, thereby the Sirocco fan 45 of air cooling machine structure 15 is rotated.Under the effect of the rotation of this Sirocco fan 45, suck extraneous air from suction hole 73, and pass the box intercommunicating pore 52 of connection and radiator air vent 35 after carry out exhaust in the mode that is connected to lampshade 14 by air vent 71 from suction hole 73, under the influence of this outside air-flow, a plurality of fin 32 and lampshade 14 to radiator 13 carry out the air cooling, will be expelled to the outside through the air of heating thus.Therefore, the heat that on substrate 12, produces from each LED22, mainly can be delivered to radiator 13 via substrate installed surface 34, and utilize the forced air supply of Sirocco fan 45, and from each fin 32 of this radiator 13 carry out socket 17 from bulb-shaped lamp 11 on the direction of principal axis of lampshade 14 from the efficiently heat radiation of low-temperature region to high-temperature area.
And then, under the effect of the rotation of Sirocco fan 45, the air outside of bulb-shaped lamp 11 can be from the low-temperature region of socket 17 sides formed suction hole 73 and in the mode that is connected to lampshade 14 outer surfaces to outside exhaust, therefore, lampshade 14 outer surfaces that reach a high temperature towards containing the thermal source in lighting a lamp come extraneous air is carried out exhaust, so can carry out the air cooling efficiently.
Like this, inboard at the radiator 13 that is provided with a plurality of fin 32 is provided with air cooling machine structure 15, and carry out exhaust, so dispel the heat efficiently by the lampshade 14 that makes high-temperature area and can improve the radiating efficiency of bulb-shaped lamp 11 in the mode that directly is connected to lampshade 14 outer surfaces.Therefore, the brightness of LED22 can not reduce, and can prolong the life-span of LED22.
Then, Fig. 9 represents the 5th embodiment, and Fig. 9 is the profile of bulb-shaped lamp.In addition, for the identical formation of described each embodiment, marked identical symbol and omitted its explanation.
With encapsulate on the distolateral i.e. interarea 21a side by the substrate body 21 of substrate 12 a plurality of, for example eight light-emitting components are the mode that LED22 is surrounded, at the substantial middle place of substrate body 21, encapsulating the drive circuit 75 that Sirocco fan 45 is rotated driving.The driving shaft that extends from this drive circuit 75 extends downwards via the substrate intercommunicating pore 23 at the center of substrate 12, and is connected in 46 ones of the central shafts of Sirocco fan 45.
Be encapsulated in drive circuit 75 in the middle section of substrate body 21 and be the circuit that the driving of the fan motor of air cooling machine structure 15 is controlled, make substrate 12 energisings during, fan motor is driven continuously.
Except the effect of the bulb-shaped lamp 11 of described each embodiment, in the bulb-shaped lamp 11 of present embodiment, to be encapsulated on the substrate body 21 and concentrated being housed in the lampshade 14 as the LED22 of the main thermal source in lighting a lamp and the drive circuit 75 of fan motor, therefore, heat can be delivered to radiator 13 via substrate installed surface 34, and utilize the forced air supply of Sirocco fan 45 and dispel the heat efficiently from each fin 32 of this radiator 13.And, even if the space in the socket 17 is narrow and small as E17 type socket, also need not to dwindle radiator, can not only keep radiating effect but also make the bulb-shaped lamp 11 whole miniaturizations of realizing.
Then, Figure 10 and Figure 11 represent the 6th embodiment, and Figure 10 is the schematic diagram of air-supply passage of expression bulb-shaped lamp, and Figure 11 is the schematic diagram of the passage of the bulb-shaped lamp of expression when the socket upside is lit a lamp.
Bulb-shaped lamp 11 shown in Figure 10 is to be powered with socket 17 is connected in ligthing paraphernalia as downside socket.
And, the A of circuit part moves and to substrate 12 supply capabilities, thereby each LED22 is luminous, and is contained in the socket 17 and the not shown acceleration transducer that is arranged among the A of circuit part detects the position relation of socket 17, thus the action of beginning drive circuit.When lighting a lamp as downside with socket 17, what the rotation of the Sirocco fan 45 of air cooling machine structure 15 was carried out is positive rotation.Thus, via around the isolated wall 51 of box 16 and is communicated with formed intercommunicating pore 77 with box intercommunicating pore 52 and comes from socket 17 sides to aspirate extraneous air, and pass radiator 13 inner space and to lampshade 14 side exhausts.Therefore discharging upward under the influence of the convection current of the bulb-shaped lamp 11 that reaches a high temperature in lighting a lamp of the warm wind after the exhaust like this can suppress carrying out once more air-breathing through the warm wind after the exhaust.Thus, fin 32 always dispels the heat in the process of lighting a lamp of LED22 and cools off, and not air-breathing to carrying out once more through the warm wind after the primary emission, therefore can improve the temperature decreasing effect of LED, and can improve the luminous efficiency of LED22.
On the other hand, bulb-shaped lamp 11 shown in Figure 11 is to be powered with socket 17 is connected in ligthing paraphernalia as upside socket.
And bulb-shaped lamp 11 is after lighting a lamp, and the acceleration transducer that is contained in the socket 17 detects the position relation of socket 17, and makes the Sirocco fan 45 of air cooling machine structure 15 carry out contrary rotation.Like this, air-breathing from the air vent 37,41 of lampshade 14 sides, and pass radiator 13 inner spaces and from the intercommunicating pore 77 side exhausts of socket 17 sides.Under the effect of the heat in lighting a lamp, the space around the bulb-shaped lamp 11 can be carried out convection current from bottom to top.Therefore, can suppress sucking once more, thereby the temperature that can carry out LED22 efficiently reduces through the warm wind after the exhaust.
Then, Figure 12 and Figure 13 represent the 7th embodiment, and Figure 12 is the profilograph of bulb-shaped lamp, and Figure 13 is the outside drawing of bulb-shaped lamp.
As Figure 12 and shown in Figure 13, being constructed as follows of bulb-shaped lamp: distolateral at another of radiator 13, the incorporating section 81 of concavity is being set, in this incorporating section 81, taken in but mechanism 15 of sky air cooling, this radiator 13 is in air cooling machine structure 15 is configured in the roughly columned self-box 82 of hollow, one distolateral at this self-box 82, covered substrate 12 and lampshade 14 is installed, and it is distolateral at another of this self-box 82, the box 16 that contains the A of circuit part is installed, on this box 16, socket 17 is installed.And this bulb-shaped LED lamp 11 has and the identical total length of so-called mini krypton filled lamp bubble.
In distolateral, i.e. the interarea 21a side of the substrate body 21 of substrate 12, encapsulating the drive circuit 85 of the driving usefulness of LED22 and air cooling machine structure 15.
Substrate body 21 be by make its another distolateral be that another interarea 21b contacts with radiator 13 and forms thermally coupled.And, on substrate body 21, disposing the not shown connector support that is electrically connected in order to air cooling machine structure 15 and circuit part's A side.
And, LED22 is that the center that is configured in the state that roughly equally spaced separates each other with substrate body 21 is on the same circumference at center, and surrounded by the 21c of frame portion on every side, the described frame 21c of portion gives prominence to circumferential rib (rib) shape from an interarea 21a of substrate body 21.That is,, divide and formed the configuring area of overlooking rounded shape 87 that disposes LED22 in the inside of the 21c of this frame portion.
Drive circuit 85 is in order to the circuit to air cooling machine structure 15 supply direct current powers, and it is also not shown, and is made of a plurality of element.And this drive circuit 85 is configured in the approximate centre portion of an interarea 21a of substrate body 21.In other words, this drive circuit 85 be configured on the interarea 21a of substrate body 21 apart from each LED22 position farthest.In addition, this drive circuit 85 can move in the mode that always drives air cooling machine structure 15 when LED22 lights a lamp, also can be only for example during more than or equal to the necessary situation of set point of temperature etc., moving in the mode that suitably drives air cooling machine structure 15 by the temperature of detected LED22 such as temperature testing organization.
The connector support is to be electrically connected on the electrified terminal of each LED22 and drive circuit 85, promptly, connector pole plate (connector shelf).In addition, this connector support can be configured on the interarea 21a and the either party among another interarea 21b of substrate body 21, but preferred disposition is on an interarea 21a.
In the radiator 13, an end (upper end) of a plurality of fin 32 is linking by overlooking the linking part 89 that is the circular shape, and the internal separation of fin 32 has incorporating section 81.
Fin 32 is so that the overhang of footpath on the direction distolaterally becomes big mode gradually and form towards one from another of radiator 13 is distolateral.And described fin 32 is respectively formed at the position near linking part 89 peripheries, and roughly equally spaced is formed on each other on the circumferencial direction of radiator 13.Therefore, between described fin 32, be formed with the ventilation unit 91 that is communicated with incorporating section 81 respectively.
The diameter dimension of linking part 89 forms littler and bigger than the 21c of frame portion (configuring area 87) of substrate body 21 than substrate body 21.And then the upper surface of this linking part 89 becomes the described substrate installed surface 34 that forms flat condition, and this substrate installed surface 34 carries out thermally coupled with another interarea 21b planar and that be close to substrate body 21.Therefore, radiator 13 is with the equitant position, position of the LED22 of substrate body 21 at least and contact with substrate body 21 when overlooking, thereby on the 21d of outer peripheral edges portion than the more outer side of LED22 of substrate body 21, substrate body 21 is towards than the more outer side of substrate installed surface 34 and outstanding.
Incorporating section 81 is that the but accommodation space portion of mechanism 15 of free air cooling is taken in inside, spreads all near the position of upper end from the lower end of radiator 13 and forms, and be positioned at and the corresponding position of the rear side of configuring area 87.And the width dimensions of this incorporating section 81 (diameter dimension) forms the diameter dimension of the 21c of frame portion (configuring area 87) that is a bit larger tham substrate body 21.And then this incorporating section 81 utilizes formed installing hole portion (mounting hole) 92 in the approximate centre portion of linking part 89 and is connected with substrate installed surface 34.In other words, another interarea 21b of the rear side of the drive circuit 85 of substrate body 21 is owing to 81 sides in the incorporating section are exposed by this installing hole portion 92.
Air cooling machine structure 15 is with motor 93 and utilizes this motor 93 and fan 94 that rotation drives carries out blocking (unit) and constitutes.
Motor 93 is the d.c. motors that are rotated outer rotor (outer rotor) type of driving under the effect of the electric power of being supplied with by drive circuit 85, has: as outer cover (housing) the columned yoke in the end (yoke) 96 arranged roughly; Be configured in the roughly columned permanent magnet (permanent magnet) 97 on the inner peripheral surface of this yoke 96; And the armature (armature) 98 that is configured in interior all sides of this permanent magnet 97.And, this motor 93 with respect to the bottom of the linking part 89 of radiator 13 a little separatedly vis-a-vis, and with predetermined distance, for example separate with another interarea 21b of substrate body 21 more than or equal to the distance of 1mm.
Yoke 96 is rotor (rotor), formed by the metal material with magnetic, and the approximate centre portion that rotating shaft 102 is pressed in the bottom forms in the hole portion 101 of opening.
One end 102a side of rotating shaft 102 is connecting fan 94, and other end 102b side is inserted in the roughly columned bearing portion 105 in the installing hole portion 92 that is pressed into radiator 13, thereby rotatably supported.
The inside of bearing portion 105 comprises not shown bearing (bearing) etc., be contacted with another interarea 21b of substrate body 21 as a distolateral upper end side, thereby and be inserted in the yoke 96 with respect to the bottom of this yoke 96 as another distolateral lower end side and separate.
And, the constituting of permanent magnet 97: alternately possess territory, N polar region and territory, S polar region in a circumferential direction, be adsorbed in yoke 96 and therewith yoke 96 rotate integratedly.
Armature 98 is by windings such as not shown coil (coil) are constituted electromagnet (electromagnet), thereby on the outer circumferential side relative, be formed with the fixed pole that alternately possesses territory, a plurality of N polar region and territory, S polar region in a circumferential direction successively, and be fixed with respect to bearing portion 105 with permanent magnet 97.
On the other hand, fan 94 is aerofoil fan (axial fan), has: the portion of roughly columned fan center 107 that is connected with the rotating shaft 102 of motor 93 and a plurality of blade parts 108 of radially giving prominence to from these 107 courts of portion of fan center.And the bottom of this fan 94 and yoke 96 vis-a-vis.Therefore, air cooling machine structure 15 is to dispose with the order of motor 93 and fan 94 from substrate body 21 side direction belows.In other words, air cooling machine structure 15 is disposing motor 93 between substrate body 21 and fan 94.
Being constructed as follows of blade part 108: be formed with a plurality ofly in a circumferential direction, and under the effect of rotation, air flowed along the direction of principal axis of fan 94 to upside from downside.And the periphery of described blade part 108 was positioned near the week of incorporating section 81.Therefore, blade part 108 is so that the big part of flow velocity density becomes the mode of the position corresponding with the rear side of the allocation position of LED22 and forms.In other words, blade part 108 be so that when overlooking the flow velocity density of the part corresponding with the configuring area 87 of LED22 become big mode and dispose.
And self-box 82 is by the good member of thermal diffusivity and with from being formed towards the mode of hole enlargement as the upper end side of other end 82b side and gradually as the lower end side of an end 82a side.And then, the approximate centre position at the two ends of the direction of principal axis (above-below direction) of this kind self-box 82, side-prominent and be formed with the support portion 109 of supporting radiator 13 from downside towards central shaft.Therefore, in the inside of self-box 82, above support portion 109, promptly, other end 82b side is divided the radiator receiving space 111 that has pair radiator 13 to accommodate.And, on the outer peripheral face of this self-box 82, the position of an end 82a side of 109 in the support portion, a plurality of air entries 112 ground opening that separates each other in a circumferential direction forms.And then on the outer peripheral face of the other end 82b of this self-box 82, a plurality of exhaust outlets 113 form in a circumferential direction with separating each other.In addition, in interior all sides of the other end 82b of self-box 82, be formed with in order to the installation recess 114 of lampshade 14 to be installed.
Support portion 109 forms the approximate horizontal shape, for example spread all over self-box 82 inside entire circumference and form continuously with ring-type.
Radiator receiving space 111 be so that the inner peripheral surface of self-box 82 roughly seamlessly be close to radiator 13 fin 32 outer peripheral face mode and form.
Air entry 112 is under the effect of the rotation of the fan 94 of air cooling machine structure 15, in order in self-box 82, to suck the peristome of extraneous air, it is shaped as the axial slotted hole shape along self-box 82, and roughly equally spaced separates on the circumferencial direction of self-box 82 and form.Therefore, described air entry 112 is formed in the mode that sucks extraneous air from the below as an end 82a side of self-box 82 towards the top.
Exhaust outlet 113 is peristomes, in order to will under the effect of the rotation of the fan 94 of air cooling machine structure 15, be drawn into the air in the self-box 82, via the incorporating section 81 in the radiator 13 and ventilation unit 91 and to outside exhaust, described exhaust outlet 113 is relative with the outer peripheral face of fin 32, and roughly equally spaced separates on the circumferencial direction of self-box 82 and form.Therefore, described exhaust outlet 113 is formed in the mode of coming towards the top air to be carried out exhaust from the other end 82b side of self-box 82.So the inspiratory direction and the discharge directions of air cooling machine structure 15 are different, for example be the direction of orthogonal (intersection).And described exhaust outlet 113 for example can be with respect to the circumferencial direction of self-box 82 and the position place formation corresponding respectively with each air entry 112.In addition, described exhaust outlet 113 also can form with place, position that air entry 112 staggers with respect to the circumferencial direction of self-box 82, and formed number also can be different with air entry 112.
And lampshade 14 is to be installed in an end 14a on the installation recess 114 of self-box 82 and to be positioned at the distolateral of radiator 13, and with the other end 82b side of self-box 82 continuous in shape.And this lampshade 14 is to form in the mode of expanding gradually from an end 14a side, and with from the maximum diameter position towards other end 14b side gradually undergauge mode and form, and the position of maximum diameter is than the more close top of each LED22 of substrate 12.
And, the A of circuit part has: as the lamp circuit substrate 117 of flat ignition device body and be encapsulated on this lamp circuit substrate 117 and constitute not shown a plurality of components of lamp circuit 118, the described A of circuit part axially is housed in the box 16.
Lamp circuit 118 for example is a circuit etc. of LED22 being supplied with constant current, is electrically connected then with substrate 12 via not shown distribution.
One end 16a side of box 16 be used as isolated wall box obstruction portion, be that choke plate 16b blocks, on this choke plate 16b, opening formed with self-box 82 in the not shown intercommunicating pore that is being communicated with.And then, on the outer peripheral face of the pars intermedia of end 16a side of this box 16 and other end 16d side, with so that the insulation division of insulation between radiator 13 and self-box 19 and the socket 17, be that flange (flange) 16e of portion is that court radially is formed on the whole circumference direction highlightedly continuously.In addition, also can fill packing material with thermal diffusivity and insulating properties, promptly, the resin of silicon-type etc. in the mode that buries the A of circuit part to the inside of box 16.
Socket 17 is positioned at the other end 16d side of box 16, that is, another of radiator 13 is distolateral.
Then, the action to described the 7th embodiment describes.
When carrying out the assembling of bulb-shaped LED lamp 11, at first, in bearing portion 105, one end 102a of rotating shaft 102 is pressed into to bearing portion 105, and bearing portion 105 is pressed into to installing hole portion 92, thereby the air cooling machine structure 15 after motor 93 and fan 94 blocking will be taken in the incorporating section 81 that is fixed on radiator 13.
Then, the radiator 13 that is fixed with this air cooling machine structure 15 is mounted and fixed on the support portion 109 of self-box 82, and will be packaged with LED22 and drive circuit 85 etc. substrate 12 substrate body 21 another interarea 21b side mounting and be fixed on the substrate installed surface 34 of the radiator 13 that exposes from self-box 82, thereby substrate 12 and radiator 13 are carried out thermal.
And, an end 16a side that contains the box 16 of the A of circuit part is inserted into an end 82a of self-box 82, and utilizes not shown sag and swell etc. to be fixed.At this moment, the wired electric that outlet side connected with the lamp circuit substrate 117 (lamp circuit 118) of the A of circuit part is connected in substrate body 21 sides.
After this, under the state of having derived the power line that is electrically connected with circuit part A side to the outside of housing 61, the socket 17 that the A of circuit part will be connected with eyelet 63 inserts from the other end 16d side of box 16, thereby sandwiches power line between box 16 and housing 61.At this moment, utilize not shown sag and swell etc. and with box 16 and socket 17 block end fixing.
Then, an end 14a side of lampshade 14 is embedded in the installation recess 114 of self-box 82 so that lampshade 14 is fixed on the self-box 82, and utilizes the adhesive etc. of silicon-type to fix reinforcement, thereby finished bulb-shaped LED lamp 11.
For the bulb-shaped LED lamp of finishing in this way 11, on the socket that socket 17 is installed on regulation and after the energising, the lamp circuit 118 of the A of circuit part can move, to substrate 12 side supply capabilities, thereby each LED22 can be luminous, and these light that send can not be driven that circuit 85 grades are blocked but the diffusion irradiation via lampshade 14.
And the heat that produces from each LED22 on substrate 12 can be delivered to radiator 13 via substrate installed surface 34, and dispels the heat through each fin 32 of radiator 13 thus.
At this moment, under the effect of the direct current power that is supplied to motor 93 from drive circuit 85, the coil of armature 98 is energized, thereby the periphery at armature 98 has alternately formed territory, a plurality of N polar region and territory, S polar region, therefore, in the adsorbed yokes 96 of all sides permanent magnet relative 97 with the periphery of armature 98 can be with rotating shaft 102 to the circumferencial direction rotation, thereby make fan 94 be rotated driving to circumferencial direction.
Its result, make the rotation of fan 94 with the effect of negative pressure under, from air entry 112 in self-box 82, suck extraneous air from the below towards the top, and on direction of principal axis, pass fan 94 and blow to the back side of the linking part 89 of radiator 13, afterwards via ventilation unit 91 towards Radial Flow, and carry out exhaust towards the top to the outside of self-box 82, from the below from exhaust outlet 113.
And, utilize the forced air supply of this air cooling machine structure 15, make from the heating of LED22 via radiator 13 and cooled off forcibly.
As previously discussed, make distolateral another an interarea 21b that is close to the substrate body 21 that on an interarea 21a, possesses LED22 of radiator 13, and air cooling machine structure 15 is accommodated in the incorporating section 81 of these radiator 13 inside, and the drive circuit 85 that will drive this air cooling machine structure 15 is arranged on the substrate body 21, thus, need not the spatial portion of taking in usefulness with air cooling machine structure 15 and drive circuit 85 individually is retained in the self-box 82 etc. separately, can save ground, space described air cooling machine structure 15 of configuration and drive circuit 85, thereby can guarantee cooling effectiveness on the one hand, on the one hand corresponding to miniaturization.
And, motor 93 is configured in substrate body 21 and another interarea 21b side of substrate body 21 relatively and between the fan 94 of configuration therewith, bearing portion 105 is pressed into to the installing hole portion 92 of radiator 13 and motor 93 is installed on the radiator 13, the air-supply that rotation produced because of fan 94 can be blowed to motor 93 thus also cools off motor 93, thereby cooling effectiveness is improved, and need not again motor 93 to be carried out axle in self-box 82 supports, thereby can suppress that motor 93 is carried out axle and support required space, and can make the 11 further miniaturizations of bulb-shaped LED lamp, and can make motor 93 approach drive circuit 85, therefore the wiring distance between this drive circuit 85 and the motor 93 can be suppressed, thereby encapsulation can be improved.
And, drive circuit 85 is arranged on an interarea 21a side of substrate body 21, another interarea 21b side of substrate body 21 is close to radiator 13 with flat condition, therefore can dispel the heat more efficiently.
And, because air cooling machine structure 15 is fixed on the radiator 13, so therefore roughly all parts of another interarea 21b side that can make substrate body 21 can further improve the conductivity of heat to radiator 13 with planar and be close to radiator 13 and carry out thermal.
And, because bearing portion 105 is pressed into to the installing hole portion 92 of the approximate centre portion of radiator 13, so the general easy bulb-shaped LED lamp 11 that forms the rotation symmetric shape with respect to optical axis that is applicable to.
And then, because make motor 93 and fan 94 blocking, so the encapsulation of air cooling machine structure 15 is good.
And, because make substrate body 21 and motor 93 separate predetermined distance or more than the predetermined distance, so can between described substrate body 21 and motor 93, dispose the linking part 89 of radiator 13.Therefore, can guarantee the contact area of another interarea 21b and the radiator 13 of substrate body 21 to greatest extent, thereby can further improve cooling effectiveness.
And then, if consider the flow velocity of the air-supply of fan 94, find that then flow velocity density is whole and inhomogeneous, the flow velocity density of the position relative with blade part 108 can become big.Therefore, when at central part configuration LED, be to make the heating of the central part that reaches a high temperature move to the position relative and cool off with blade part 108, therefore and be not easy to raise the efficiency, and it is relative therewith, LED22 is configured in the position relative with blade part 108, can further improves cooling effectiveness thus.
And, can guarantee cooling effectiveness as mentioned above, therefore can reduce the temperature of LED22, thereby a kind of high efficiency bulb-shaped LED lamp 11 can be provided, and can realize the long lifetime of LED22.
Then, Figure 14 represents the 8th embodiment, and Figure 14 is the profilograph of bulb-shaped lamp.In addition, formation and effect for identical with described the 7th embodiment have marked same-sign and have omitted its explanation.
According to described the 7th embodiment, in this 8th embodiment, the 21d of outer peripheral edges portion that drive circuit 85 is configured in an interarea 21a of substrate body 21 goes up, promptly, the foreign side of the 21c of frame portion (configuring area 87).In addition, as long as this drive circuit 85 is positioned at the foreign side of the 21c of frame portion, also can be and be configured to round (circular-arc or circular etc.) along the circumferencial direction of the 21c of frame portion.
And, this drive circuit 85 be so that a part when overlooking and the overlapping mode of the outer circumferential side of the fin 32 of radiator 13 and disposing.
And, the 8th embodiment has and the identical formation of described the 7th embodiment, promptly, make distolateral another an interarea 21b that is close to the substrate body 21 that on an interarea 21a, possesses LED22 of radiator 13, air cooling machine structure 15 is accommodated in the incorporating section 81 of inside of this radiator 13, and it is first-class that the drive circuit 85 that will drive this air cooling machine structure 15 is arranged on substrate body 21, therefore can bring into play and the identical action effect of described the 7th embodiment.
Then, Figure 15 represents the 9th embodiment, and Figure 15 is the profilograph of bulb-shaped lamp.In addition, formation and effect for identical with described each embodiment have marked same-sign and have omitted its explanation.
According to described the 8th embodiment, in this 9th embodiment, the bearing portion 105 of air cooling machine structure 15 is inserted into the installing hole portion 92 of radiator 13, and is pressed into in the approximate centre portion of substrate body 21 and form in the peristome 121 of opening.
That is, peristome 121 is in the position relative with installing hole portion 92, forms the circular hole of installing hole portion 92 diameter dimension about equally therewith.Therefore, this peristome 121 be distance L ED22 farthest the position and be in the 21c of frame portion (configuring area 87), to form, and on thickness direction, run through substrate body 21.In addition, this peristome 121 also can be arranged with the side at another interarea 21b, and does not run through substrate body 21 on thickness direction.
And, by motor 93 and fan 94 and constitute air cooling machine structure 15, bearing portion 105 inserted lead in the installing hole portion 92 of radiator 13 and be pressed into peristome 121 to substrate body 21, thus, need not again air cooling machine structure 15 to be carried out axle in self-box 82 supports, thereby can guarantee sufficient space in the self-box 82, and can make the 11 more miniaturizations of bulb-shaped LED lamp.
And, from with an interarea 21a who is packaged with LED22 and drive circuit 85 be another interarea 21b side of opposition side, bearing portion 105 is pressed into peristome 121 to substrate body 21, make another interarea 21b integral body except peristome 121 of substrate body 21 carry out thermal with the planar radiator 13 of being close to thus, therefore can further improve conductivity of heat to radiator 13 for plane.
Then, Figure 16 represents the tenth embodiment, and Figure 16 is the profilograph of bulb-shaped lamp.In addition, formation and effect for identical with described each embodiment have marked same-sign and have omitted its explanation.
According to described the 9th embodiment, in this tenth embodiment, with LED22 on same circumference and be configured near the periphery of substrate body 21 position, and drive circuit 85 is configured in the central side except peristome 121 of substrate body 21, promptly, the interior side's of LED22 position.
LED22 is configured in the position that at least a portion when overlooking is overlapped in the periphery of radiator 13, preferred disposition when overlooking, make LED22 integral body be positioned at than the more close side's of periphery of radiator 13 position and with fin 32 above corresponding position.In other words, LED22 be positioned at when overlooking position than the more outer side in incorporating section 81,, be positioned at the foreign side of blade part 108 of the fan 94 of air cooling machine structure 15.
And, the tenth embodiment has and the identical formation of described each embodiment, promptly, make distolateral another an interarea 21b that is close to the substrate body 21 that on an interarea 21a, possesses LED22 of radiator 13, air cooling machine structure 15 is accommodated in the incorporating section 81 of inside of this radiator 13, and it is first-class that the drive circuit 85 that will drive this air cooling machine structure 15 is arranged on substrate body 21, therefore can bring into play and the identical action effect of described each embodiment.
Then, Figure 17 represents the 11 embodiment, and Figure 17 is the profilograph of bulb-shaped lamp.In addition, formation and effect for identical with described each embodiment have marked same-sign and have omitted its explanation.
According to described the 9th embodiment, in this 11 embodiment, radiator 13 forms in upper end side (is distolateral), is the ring-type that substrate body 21 sides are linking a plurality of fin 32, and incorporating section 81 is run through and formed from the upper lateral lower end side (another is distolateral) of radiator 13.
Therefore, the upper end side of fin 32 become with the outer peripheral edges portion corresponding position of 21d, be the foreign side of the 21c of frame portion (configuring area 87) and the circular substrate installed surface 123 be close to another interarea 21b of substrate body 21.
Therefore, motor 93 is further approaching with the distance of substrate body 21, and do not make radiator 13 between described motor 93 and substrate body 21, but with motor 93 with respect to another interarea 21b of substrate body 21 and relatively disposing with the pairing position of the 21c of frame portion (configuring area 87).
And, run through radiator 13 and form incorporating section 81, bearing portion 105 is pressed into to substrate body 21, make the motor 93 of air cooling machine structure 15 and another interarea 21b that fan 94 more approaches substrate body 21, can guarantee the self-box 82 interior more space of bulb-shaped LED lamp 11 thus, thereby can be more reliably corresponding to miniaturization, and can make rotation because of fan 94 drive the air-supply that is produced directly to blow to another interarea 21b of substrate body 21, thereby can guarantee radiating efficiency.
Then, Figure 18 represents the 12 embodiment, and Figure 18 is the profilograph of bulb-shaped lamp.In addition, formation and effect for identical with described each embodiment have marked same-sign and have omitted its explanation.
According to described the tenth embodiment, in this 12 embodiment, identical with described the 11 embodiment, radiator 13 forms in upper end side (is distolateral), is the ring-type that substrate body 21 sides are linking a plurality of fin 32, and incorporating section 81 is run through and formed from the upper lateral lower end side (another is distolateral) of radiator 13.
And, by constituting in this way, just can realize and described the tenth embodiment and the identical action effect of the 11 embodiment.
In addition, in described the 7th to the 12 embodiment, LED22 is as long as on same circumference, a part is disposed discontinuously, and it is big that the width on the circumferencial direction also can become partly, and then, can also be configured in the approximate centre portion of configuring area 87.The thermal design aspect that is configured in bulb-shaped LED lamp 11 of described LED22 can suitably be rationalized.
And then drive circuit 85 can be configured in the position arbitrarily that can not block the light that light-emitting component sends.
And fan 94 also can replace aerofoil fan and become centrifugal fan.
In addition, air cooling machine structure 15 can be not yet with motor 93 with fan 94 blocking but individually constitute.At this moment, fan 94 is maximized, thereby can obtain more cooling air quantity.
And then air cooling machine structure 15 also can form fan 94 is configured in formation between substrate body 21 and the motor 93.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (5)

1. bulb-shaped lamp is characterized in that comprising:
Substrate is being provided with light-emitting component on the one distolateral face;
Radiator, an end are installed with another distolateral face of substrate;
Lampshade, covered substrate and be installed in an end of radiator;
Socket is arranged on the other end of radiator;
Lamp circuit is housed between radiator and the socket, and light-emitting component is lit a lamp; And
The air cooling machine structure, another that can be rotatably set in radiator is distolateral, makes the inner ventilation of radiator,
On described substrate, the substrate intercommunicating pore that a distolateral face is communicated with another distolateral face is being set;
On described radiator,, be provided with distolateral and another distolateral radiator intercommunicating pore that is communicated with in the position that is connected with the substrate intercommunicating pore;
On at least one side of described radiator and described lampshade, be provided with by inner space that lampshade covered and the outside air vent that is connected.
2. bulb-shaped lamp according to claim 1 is characterized in that:
Described radiator is formed by resin material.
3. bulb-shaped lamp according to claim 1 is characterized in that:
Described radiator comprises in inside takes in the but incorporating section of mechanism of free air cooling;
Described bulb-shaped lamp possesses drive circuit, and this drive circuit is arranged on the substrate, and the air cooling machine structure is driven.
4. bulb-shaped lamp according to claim 3 is characterized in that:
Described air cooling machine structure comprises:
Fan is relatively disposing with another of substrate is distolateral; And
Motor is configured between described fan and the substrate, and is installed on the either party at least of substrate and radiator, drives by drive circuit the fan rotation is driven.
5. according to claim 3 or 4 described bulb-shaped lamps, it is characterized in that:
Drive circuit is arranged on the distolateral of substrate.
CN2009101608719A 2008-07-31 2009-07-28 Bulb-shaped lamp Expired - Fee Related CN101639171B (en)

Applications Claiming Priority (15)

Application Number Priority Date Filing Date Title
JP2008-199035 2008-07-31
JP2008199035 2008-07-31
JP2008199035A JP2010040221A (en) 2008-07-31 2008-07-31 Self-ballasted lamp
JP2008252567 2008-09-30
JP2008252562A JP2010086708A (en) 2008-09-30 2008-09-30 Bulb-form lamp
JP2008252562 2008-09-30
JP2008252742 2008-09-30
JP2008252742A JP2010086713A (en) 2008-09-30 2008-09-30 Bulb-type lamp
JP2008-252567 2008-09-30
JP2008-252562 2008-09-30
JP2008252567A JP5246404B2 (en) 2008-09-30 2008-09-30 Light bulb shaped lamp
JP2008-252742 2008-09-30
JP2008280062 2008-10-30
JP2008280062A JP5062433B2 (en) 2008-10-30 2008-10-30 Light bulb shaped lamp
JP2008-280062 2008-10-30

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CN101639171B true CN101639171B (en) 2011-05-18

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