CN203131509U

CN203131509U - Light source for illuminating and lighting device

Info

Publication number: CN203131509U
Application number: CN2013200711856U
Authority: CN
Inventors: 薛永良
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2013-02-07
Filing date: 2013-02-07
Publication date: 2013-08-14
Anticipated expiration: 2023-02-07

Abstract

A light source for illuminating comprises a ball-shaped cover (10), an LED module (20) and a supporting column (31), wherein the LED module (20) is arranged in the ball-shaped cover (10). The supporting column (31) is arranged in an extending mode in the direction facing the interior of the ball-shaped cover (10), and is used for supporting the LED module (20). The LED module (20) is arranged between the center of the ball-shaped cover (10) and the top point of the ball-shaped cover (10). A lighting device is provided with the light source for illuminating. According to the light source for illuminating and the lighting device, an irradiation range facing the lamp cap side is enlarged.

Description

Illumination light source and lighting device

Technical field

The utility model relates to illumination light source and lighting device, relates in particular to the LED bulb (bulb-shaped lamp) that has used light emitting diode (LED:Light Emitting Diode) and the lighting device that has used this LED bulb.

Background technology

Semiconductor light-emitting elements such as LED are small-sized owing to having, efficient and the life-span is long, and waiting in expectation can be as the light source of various products.Wherein as an alternative the research and development of the LED bulb of illumination light sources such as known lamp-bulb type fluorescent lamp and incandescent lamp in the past also in progress (patent documentation 1) constantly.

The LED bulb for example possesses: become the support unit of the led module of light source, the enclosed globe shade that covers led module, supporting led module, to the drive circuit of led module supply capability, surround drive circuit and the peripheral framework that is configured and the lamp holder that is used for accepting electric power.

(prior art document)

(patent documentation)

Patent documentation 1: TOHKEMY 2006-313717 communique

But, at patent documentation 1 disclosed LED bulb in the past, because led module is arranged on the flat support unit (light resource installing section) of the opening that stops up enclosed globe shade, irradiation can be blocked because of support unit and the peripheral framework that surrounds this support unit to the light of lamp holder side.Therefore, LED bulb in the past has towards the little problem of the range of exposures of lamp holder side.

Especially the LED bulb of candle has the situation of the ligthing paraphernalia that is installed in downward photographs such as chandelier.That is, have the LED bulb with enclosed globe shade at upside (ceiling one side) and lamp holder in the mode of downside (ground one side) and be installed in the situation of ligthing paraphernalia.In this case, preferably the range of exposures towards the lamp holder side is big, yet the formation of LED bulb in the past is little towards the range of exposures of lamp holder side, therefore occurs as the few problem of the efficient beam of illumination light.

The utility model content

The utility model is in order to solve the above problems, and it is a kind of towards the range of exposures of lamp holder side big illumination light source and lighting device that purpose is to provide.

In order to reach above-mentioned purpose, an embodiment of the illumination light source that the utility model is related is to possess: enclosed globe shade; Light emitting module is configured in the described enclosed globe shade; And pillar, with towards the direction of the inside of described enclosed globe shade and be extended setting, and support described light emitting module; The described light emitting module of this illumination light source is configured between the summit of the center of described enclosed globe shade and described enclosed globe shade.

And, also can be that in an embodiment of the related illumination light source of the utility model, described light emitting module possesses the substrate with light transmission and is installed in light-emitting component on the described substrate.

And, also can be that in the embodiment of the illumination light source that the utility model is related, described substrate is being elongate with the slightly vertical direction of the length direction of described pillar.

And, also can be that in the embodiment of the illumination light source that the utility model is related, described light emitting module is configured in, between the mid point on the summit of the center of described enclosed globe shade and the center of described enclosed globe shade and described enclosed globe shade.

And, also can be that in the embodiment of the illumination light source that the utility model is related, described enclosed globe shade is rotary body; The width of described light emitting module on the diametric(al) of described enclosed globe shade is more than 1/2 of the maximum inner diameter of described enclosed globe shade.

And, also can be that in the embodiment of the illumination light source that the utility model is related, described enclosed globe shade is elongate in the direction vertical with the opening surface of this enclosed globe shade.

And an embodiment of the lighting device that the utility model is related is to possess above-described any illumination light source.

By the utility model, the range of exposures towards the lamp holder side is increased.

Description of drawings

Fig. 1 is the outward appearance perspective view of the related bulb-shaped lamp of embodiment of the present utility model.

Fig. 2 is the profile of the related bulb-shaped lamp of embodiment of the present utility model.

(a) of Fig. 3 is the plane of the led module in the related bulb-shaped lamp of embodiment of the present utility model, (b) of Fig. 3 is the profile of this led module on the A-A ' line of (a) of Fig. 3, (c) of Fig. 3 is the profile of this led module on the B-B ' line of (b) of Fig. 3, and (d) of Fig. 3 is the profile of this led module on the C-C ' line of (a) of Fig. 3.

Fig. 4 A is the figure for the light distribution characteristic of explanation bulb-shaped lamp in the past.

Fig. 4 B is the figure for the light distribution characteristic of the bulb-shaped lamp of explanation comparative example.

Fig. 4 C is the figure for the light distribution characteristic of the bulb-shaped lamp of explanation embodiment of the present utility model.

Fig. 5 shows in the related bulb-shaped lamp of embodiment of the present utility model, the figure of the relation of the light beam of the height of led module and lamp holder side.

Fig. 6 is the outward appearance perspective view of the related lighting device of embodiment of the present utility model.

Fig. 7 is the side view of the formation of the related bulb-shaped lamp of variation of the present utility model.

The explanation of symbol:

1,101,102 bulb-shaped lamps

2 lighting devices

10,10A enclosed globe shade

10a jaw portion

11 main parts

12 peristomes

20 led modules

21 substrates

22 LED

23 seal members

24 metal wirings

25 leads

26a, 26b terminal

27a, 27b through hole

30 bearings

31,130 pillars

32 pedestals

40 drive circuits

41 circuit substrates

42 components

43a, 43b, 43c, 43d lead-in wire

50 frameworks

50a first peristome

50b second peristome

51 outer parts

The 51a protuberance

The 51b fastener

52 connecting portions

60 lamp holders

61 shell portions

62 insulation divisions

63 contact chip portions

70 circuit lid

The 70a flange part

80 screws

The specific embodiment

Below, with reference to accompanying drawing embodiment of the present utility model related illumination light source and lighting device are described.And, below illustrated embodiment be a preferred object lesson of the present utility model.Therefore, the position being set and connecting form etc. of the numerical value shown in the following embodiment, shape, material, inscape, inscape all is examples of the present utility model, and the utility model is not limit by these.And, there is not the inscape of record for the independent claims among the inscape in the following embodiment, can illustrate as inscape arbitrarily.

And each figure is ideograph, is not to be rigorous diagram.And, in each figure, give identical symbol for identical component parts.

(illumination light source)

In the following embodiments, as an example of illumination light source, bulb-shaped LED lamp (LED bulb) is described.

At first, utilize Fig. 1 that all formations of the related bulb-shaped lamp 1 of embodiment of the present utility model are described.Fig. 1 is the outward appearance perspective view of the related bulb-shaped lamp of embodiment of the present utility model.

As shown in Figure 1, bulb-shaped lamp 1 is the bulb-shaped lamp that becomes the substitute of incandescent lamp, and this bulb-shaped lamp 1 possesses: enclosed globe shade 10, the led module 20 as light source, bearing 30, drive circuit 40, framework 50 and lamp holder 60.Bulb-shaped lamp 1 in the present embodiment constitutes peripheral device by enclosed globe shade 10, framework 50 and lamp holder 60.

Then, with reference to Fig. 1 and utilize Fig. 2, each inscape of bulb-shaped lamp 1 is described.Fig. 2 is the profile of the related bulb-shaped lamp of embodiment of the present utility model 1.And the chain-dotted line of drawing along the paper above-below direction in Fig. 2 is represented the lamp axle J(central shaft of bulb-shaped lamp), in the present embodiment, lamp axle J is consistent with the enclosed globe shade axle.And lamp axle J is the axle that becomes pivot when bulb-shaped lamp 1 being installed to the lamp socket of lighting device (not shown), and is consistent with the rotating shaft of lamp holder 60.

[enclosed globe shade]

As Fig. 1 and shown in Figure 2, enclosed globe shade 10 is the diffusers that cover led module 20, the light of emitting from led module 20 can be fetched into the outside of lamp.Therefore, incide the light of led module 20 of the inner face of enclosed globe shade 10, see through the outside that enclosed globe shade 10 is fetched to enclosed globe shade 10.

Enclosed globe shade 10 is the hollow parts with opening, and this enclosed globe shade 10 is the top of an opposite side with opening and is the shape of sealing.Enclosed globe shade 10 for example is to be the rotary body of axle with lamp axle J.Enclosed globe shade 10 in the present embodiment (direction of lamp axle J) on the direction vertical with the opening surface of peristome 12 is elongate.Particularly, enclosed globe shade 10 is the C shape of the C7710 defined of candle (JIS(Japanese Industrial Standards)), the outside of enclosed globe shade 10 becomes the summary taper seat of lengthwise.

The formation of enclosed globe shade 10 comprises: expose outside, and can be from the outside visual to main part (enclosed globe shade main part) 11; And surrounded by the first peristome 50a of framework 50, and can not be from the outside visual to peristome (enclosed globe shade peristome) 12.Led module 20 is arranged on the position of the regulation in the main part 11.

It is big that the maximum outside diameter of the maximum outside diameter ratio open portion 12 of main part 11 is wanted.That is to say that the external diameter of peristome 12 is narrower than the external diameter of main part 11.The 10a of jaw portion that has the maximum outside diameter difference because of this main part 11 and peristome 12 to produce in enclosed globe shade 10 design.The 10a of this jaw portion is arranged on the coupling part of main part 11 and peristome 12, is designed to step-like in the present embodiment.

The bottom of the 10a of jaw portion (face of lamp holder one side) connects with the edge of the first peristome 50a of framework 50.Enclosed globe shade 10 by with its 10a of jaw portion mounting in the edge of the first peristome 50a of framework 50, thereby by framework 50 supportings.And the edge of opening of peristome 12 does not contact with any parts that bearing 30, framework 50 and circuit cover among 70, and peristome 12 is suspended state.And, though do not illustrate, can between the inner face of the outside of peristome 12 and framework 50, be coated with adhesives such as silicones.Like this, enclosed globe shade 10 is fixed with framework 50.

Enclosed globe shade 10 is to be the glass bulb (clear lamp) of transparent vitreous silica glass system at visible light.Therefore, can be visual to the led module 20 that is incorporated in the enclosed globe shade 10 from the outside of enclosed globe shade 10.

And, being not limited only to glass material as the material of enclosed globe shade 10, also can adopt by propylene (PMMA) or polycarbonate resin materials such as (PC) etc.And it is transparent that enclosed globe shade 10 also can need not to be, as long as enclosed globe shade 10 has light diffusion function.For example, resin that also can be by will containing photodiffusion materials such as silica or calcium carbonate or Chinese white etc. are coated to whole inner face or the outside of enclosed globe shade 10, form milky optical diffusion film.Like this, have light diffusion function by making enclosed globe shade 10, thereby can make the light diffusion of inciding enclosed globe shade 10 from led module 20, therefore can enlarge the luminous intensity distribution angle of lamp.

[led module]

Led module 20 is the light emitting modules with light-emitting component, can emit the light of the color (wavelength) of regulation such as white.Be configured in the led module 20 in the enclosed globe shade 10, be maintained in the space in the enclosed globe shade 10 by bearing 30, luminous by supplying with the electric power that comes by lead-in

wire

43a and 43b from drive circuit 40.

And the led module 20 in the present embodiment is elongated shape, is configured to axle (the lamp axle J) quadrature of its length direction and pillar 31.Particularly, longilineal substrate 21 is supported by pillar 31 with the state of the direction of principal axis quadrature of its length direction and pillar 31.

As shown in Figure 2, led module 20 is configured in the center G of enclosed globe shade 10 _CNTSummit G with enclosed globe shade 10 _TOPBetween.And, in the present embodiment, the center G of enclosed globe shade 10 _CNTBe positioned at the height H of the main part 11 of enclosed globe shade 10 _GLB1/2 position, the height H of led module 20 _MDLCompare H _GLB1/2 big (H _MDLH _GLB/ 2).

And, the height H of led module 20 _MDLFor from the surface of the pedestal 32 of bearing 30 to the distance of the centre of luminescence of led module 20.The height H of led module 20 _MDLCan adjust by the height of change pillar 31.

And, in the present embodiment, the width W of led module 20 on the diametric(al) (with the direction of lamp axle J quadrature) of enclosed globe shade 10 _MDLMaximum inner diameter W for enclosed globe shade 10 _GLBMore than 1/2.And, in Fig. 2, the maximum inner diameter W of enclosed globe shade 10 _GLBInternal diameter for the 10a of jaw portion of enclosed globe shade 10.

At this, utilize the detailed formation of the led module 20 of Fig. 3 to describe.(a) of Fig. 3 is the plane of the led module in the related bulb-shaped lamp of embodiment of the present utility model, and (b) of Fig. 3 is the profile of this led module at A-A ' line place of Fig. 3 (a).(c) of Fig. 3 is the profile of this led module at B-B ' line place of Fig. 3 (a), and (d) of Fig. 3 is the profile of this led module at C-C ' line place of Fig. 3 (a).

Shown in Fig. 3 (a) to (d), led module 20 has: substrate 21, LED22, seal member 23, metal wiring 24, lead 25, terminal 26a and 26b.Led module 20 in the present embodiment is directly installed on COB(Chip On Board on the substrate 21 for bare chip: structure chip on board).Below, each inscape of led module 20 is elaborated.

At first, substrate 21 is described.Substrate 21 is for the installation base plate that LED22 is installed, and has: as first interarea (surface) of the face that LED22 is installed, and second interarea (back side) relative with this first interarea.Shown in Fig. 3 (a), for example overlook (from the summit G of enclosed globe shade 10 _TOPThe time) during substrate 21, this substrate 21 is the substrate of rectangular rectangular plate-like.And, as the shape of substrate 21, also can be square or circular except rectangle.And, also can be the polygonal beyond the quadrangles such as hexagon, octagonal.

And substrate 21 is to be the light-transmitting substrate with light transmission at visible light.Preferably adopt at the high material of the total transmissivity rate of visible light as substrate 21.The substrate that has this light transmission by employing, thereby the light of LED22 and can see through the inside of substrate 21 by the light that seal member 23 has been transformed wavelength, and the face (second interarea) that LED22 never is installed penetrates.Accordingly, even only be installed at LED22 under the situation of first interarea of substrate 21, also can emit white light from second interarea.Therefore, can be centered by led module 20, easily to the comprehensive light of emitting.

As light-transmitting substrate, for example can adopt total transmissivity rate at visible light is substrate more than 80%, and perhaps adopting at visible light is transparent (be that transmissivity is very high, can from the state of opposite side perspective) transparency carrier.Substrate as this light transmission can adopt: the light transparent ceramic substrate that is made of multicrystal aluminium oxide or aluminium nitride, the transparent glass substrate that is made of glass, the quartz wafer that is made of crystal, the sapphire substrate that is made of sapphire, the resin substrate that is made of resin material or flexible base, board etc.Particularly, can adopt the total transmissivity rate is 96% rectangular polycrystal aluminum oxide substrate.

Second interarea of substrate 21 with bearing 30(pillar 31) stationary plane be the face state of contact, be connected with bearing 30.And, be equipped with two through hole 27a and 27b at substrate 21, be used for being electrically connected with two lead-in wire 43a and 43b.Lead-in wire 43a(43b) leading section runs through through hole 27a(27b), be welded in the terminal 26a(26b that is formed on the substrate 21).

Then, LED22 is described.LED22 is an example of light-emitting component, is by the next luminous semiconductor light-emitting elements of the electric power of regulation.Each LED22 is the bare chip that sends monochromatic visible light.Adopt the blue-light-emitting led chip that when energising, sends blue light in the present embodiment.For example can adopt that material by InGaN system constitutes, centre wavelength as the blue led chip is the gallium nitride based semiconductor light-emitting elements of 440nm-470nm.

And LED22 only is installed in first interarea of substrate 21, is aligned to the state of multiple row and has been mounted a plurality of with the long side direction along substrate 21.Be arranged as two row in the present embodiment, to become two element lines.

And the installation quantity of LED22 can be made suitable change according to the purposes of bulb-shaped lamp.For example, under the situation of the LED lamp of the low-power type that substitutes pea lamp etc., also can adopt a LED22.And, also can the installation quantity of the LED22 in the element line be increased or reduce.And the element line of LED22 also can need not to be two row, and can be row.

Then, seal member 23 is described.Seal member 23 for example is made of resin, and covers LED22.Seal member 23 carries out the mode of integral sealing with each row to the row of a plurality of LED22 and is formed.In the present embodiment, the element line of LED22 is owing to be configured to two row, so seal member 23 is formed two.Article two, each bar of seal member 23 along the orientation (column direction) of a plurality of LED22, is configured to linearity at first interarea of substrate 21.

Though seal member 23 mainly is made of translucent material, but, under the situation of the wavelength that the light wavelength of LED22 need be transformed to regulation, wavelength shifter can be blended into translucent material.

Seal member 23 in the present embodiment includes the fluorophor as wavelength shifter, the wavelength conversion parts that the light wavelength (color) that LED22 is sent is carried out conversion.As such seal member 23, for example can be constituted by the resin material (containing the fluorophor resin) of the insulating properties that contains fluorophor particle.The optical excitation that fluorophor particle is sent by LED22, thus the light of desirable color (wavelength) sent.

Translucent resin material as constituting seal member 23 for example can adopt silicones.And, also can make photodiffusion material be distributed to seal member 23.And seal member 23 also can be formed by resin material, also can be formed by the inorganic material such as glass that organic materials such as fluorine resin or low-melting glass, sol-gal process are made.

As the fluorophor particle that contains in the seal member 23, be to send under the situation of blue-light-emitting LED of blue light at LED22 for example, in order to obtain white light, for example can adopt the yellow fluorophor particle of YAG system.Accordingly, the part of the blue light that LED22 sends is sodium yellow by the yellow fluorophor particle that comprises in the seal member 23 by wavelength conversion.So, do not mixed by yellow fluorophor the particle blue light that absorbs and the sodium yellow that has been carried out wavelength conversion by the yellow fluorophor particle, penetrate from seal member 23 thereby become white light.And, can adopt particles such as silica as photodiffusion material.

Seal member 23 in the present embodiment contains the fluorophor resin for what fluorophor particle that will regulation was distributed to silicones, can be applied to first interarea of substrate 21 by distributor, and be formed by sclerosis.In this case, vertical with the length direction of seal member 23 being shaped as of cross section omited semicircle.

And, in order to carry out wavelength conversion to seeing through substrate 21 and the light (light of leakage) towards second interarea (back side), also can be between LED22 and substrate 21 or second interarea of substrate 21 form the second wavelength conversion parts, can adopt the fluorescent membranes (luminescent coating) such as sintered body film that constituted by inorganic grafting material such as fluorophor particle and glass (adhesive) as the second wavelength conversion parts, perhaps adopt with at the identical parts of the seal member 23 of first interarea formation of substrate 21.Like this, further form the second wavelength conversion parts by second interarea at substrate 21, thereby also can carry out wavelength conversion to the light that sees through substrate 21 and penetrate from second interarea.Accordingly, can emit white light from the two sides of substrate 21.

Then, metal wiring 24 is described.Metal wiring 24 is conductive wires that the luminous electric current of LED22 is flow through, and the shape with regulation is formed at by pattern on the surface of substrate 21.Shown in Fig. 3 (a), metal wiring 24 is formed on first interarea of substrate 21.By metal wiring 24, the electric power that supplies to led module 20 from go between 43a and 43b is fed into each LED22.

Metal wiring 24 is formed, and can make a plurality of LED22 of each element line connection that is one another in series.For example, metal wiring 24 is formed to be dispersed in the state between adjacent LED22.And metal wiring 24 is formed, and can make each element line each other for being connected in parallel.Each LED22 is electrically connected with metal wiring 24 by lead 25.In addition, metal wiring 24 is dispersed between LED22.In this case, LED22 adjacent one another are is, between chip and chip (chip-to-chip) with wire-bonded.

Metal wiring 24 for example be by the metal film that is made of metal material is carried out patterning and the printing form.Metal material as metal wiring 24 for example can use silver (Ag), tungsten (W), copper (Cu) or gold (Au) etc.

And for the metal wiring 24 that exposes from seal member 23, except terminal 26a and 26b, preferably the glass-film that is made of glass material (glass coating film) or the resin molding (resinous coat film) that is made of resin material cover.Like this, the insulating properties of led module 20 can be improved, and the reflectivity on the surface of substrate 21 can be improved.

Lead 25 for example is golden lead isoelectric line.Shown in Fig. 3 (b), lead 25 is connected with metal wiring 24 with LED22.

And in the present embodiment, lead 25 does not expose from seal member 23, and lead 25 all is embedded in the seal member 23.Like this, can prevent from being absorbed or being reflected because of light that the lead 25 that exposes causes.

Then, terminal 26a and 26b are described.Terminal 26a and 26b are for the outside from led module 20, accept to be used for making the luminous galvanic external connection terminals of LED22.In the present embodiment, terminal 26a and 26b and lead-in

wire

43a and 43b welding.

Terminal 26a and 26b are formed on first interarea of substrate 21 with the state of the regulation that can surround through hole 27a and 27b.Terminal 26a and 26b are connected with metal wiring 24 and are formed, and are electrically connected with metal wiring 24.And terminal 26a and 26b use the metal material identical with metal wiring 24, and the pattern of the pattern of this terminal 26a and 26b and metal wiring 24 is formed simultaneously.

And terminal 26a and 26b are the power supplies of led module 20, will via metal wiring 24 and lead 25, supply to each LED22 from the direct current of lead-in

wire

43a and 43b acceptance.

[bearing]

Bearing 30 is support units of supporting led module 20.And bearing 30 is also as being used at led module 20(LED22) thermal component (radiator) that dispels the heat of the heat that takes place plays a role.Bearing 30 is made of pillar 31 and pedestal 32.

As shown in Figure 2, pillar 31 is the elongate member that are set up from nearby extending to the inside of enclosed globe shade 10 of the peristome 12 of enclosed globe shade 10.In the present embodiment, pillar 31 is to be extended setting with self axle along the mode of lamp axle J.That is to say the axle parallel with lamp axle J (being coaxial in the present embodiment) of pillar 31.

Pillar 31 plays a role as the holding member that keeps led module 20, is connected with led module 20 at an end of pillar 31, and the other end of pillar 31 is connected with pedestal 32.Particularly, be formed with stationary plane for the substrate 21 of fixed L ED module 20 at the top of pillar 31.

And pillar 31 also makes at led module 20(LED22 as being used for) thermal component (radiator) of the thermal transpiration that takes place plays a role.Therefore, pillar 31 preferably is made of the metal material or the high resin material of pyroconductivity that with aluminium (Al), copper (Cu) or iron (Fe) etc. are Main Ingredients and Appearance.Therefore, the heat energy that takes place at led module 20 is enough in pillar 31, and efficient is transmitted to pedestal 32 well.In the present embodiment, pillar 31 adopts aluminium and is formed.

The pillar 31 that picture has above this formation can change led module 20 with respect to the position of enclosed globe shade 10 by changing the length (highly) on the length direction.That is, by changing the height of pillar 31, can change the light distribution characteristic of bulb-shaped lamp 1.

Pedestal 32 is the support units for support column 31.Pillar 31 is fixed in the surface of pedestal 32.And pedestal 32 constitutes inaccessible parts with the circuit cover, with the opening of the first peristome 50a of the peristome 12 that stops up enclosed globe shade 10 and framework 50.

Circuit lid 70 is fixedly arranged, and because circuit lid 70 is fixed on framework 50 at the back side of pedestal 32, so pedestal 32(bearing 30) also be fixed on framework 50.

Pedestal 32 is same with pillar 31, as being used at led module 20(LED22) thermal component (radiator) that dispels the heat of the heat that takes place plays a role.Therefore, pedestal 32 preferably is made of the metal material or the high resin material of pyroconductivity that with aluminium (Al), copper (Cu) or iron (Fe) etc. are Main Ingredients and Appearance.Like this, the heat from pillar 31 can be transmitted to framework 50 expeditiously.In the present embodiment, pedestal 32 uses aluminium to form.And pillar 31 can be separated with pedestal 32 to be constituted, and also can be formed one.

[drive circuit]

As shown in Figure 2, drive circuit (circuit unit) the 40th makes led module 20(LED22) lamp circuit (power circuit) of luminous (lighting a lamp), the electric power of regulation is supplied to led module 20.For example, drive circuit 40 will be supplied with the alternating current that comes from lamp holder 60 via pair of

lead wires

43c and 43d and be transformed to direct current, and this direct current is supplied to led module 20 via pair of

lead wires

43a and 43b.

Drive circuit 40 is made of circuit substrate 41 and a plurality of components (electronic component) 52 that are installed on the circuit substrate 41.

Circuit substrate 41 is that metal wiring is patterned and the printed circuit board (PCB) that forms, and a plurality of components 42 that are installed in this circuit substrate 41 are electrically connected to each other.Circuit substrate 41 for example is configured with the state of interarea and lamp axle J quadrature.

Component 42 for example is semiconductor elements such as capacity cells such as electrolytic capacitor, ceramic capacitor, resistive element, convertor circuit element, coil part, choking-winding (choke transformer), noise filter, diode or integrated circuit component etc.Component 42 is installed in the interarea of lamp holder one side of circuit substrate 41 mostly.

Drive circuit 40 with above this formation is incorporated in the framework 50.In the present embodiment, circuit substrate 41 is carried the protuberance 51a of the inner face setting that is placed at framework 50.And, in drive circuit 40, also can select and make up light adjusting circuit or booster circuit rightly.

Drive circuit 40 and led module 20 are electrically connected via pair of lead wires 43a and 43b.And drive circuit 40 and lamp holder 60 are electrically connected via pair of lead wires 43c and 43d.These four lead-in wire 43a-43d for example are the alloyed copper lead-in wires, are made of heart yearn and the resin-coated of insulating properties that coats this heart yearn, and described heart yearn is made of alloyed copper.

In the present embodiment, lead-in wire 43a is the lead (the sub-line of cathode output end) that will positive voltage supplies to led module 20 from drive circuit 40, and lead-in wire 43b is the lead (the sub-line of cathode output end) that the voltage of bearing is supplied to led module 20 from drive circuit 40.Lead-in

wire

43a and 43b run through the through hole that is arranged on pedestal 32, are drawn out to led module one side (in the enclosed globe shade 10).

And, lead-in wire 43a(43b) and an end (heart yearn) separately runs through the through hole 27a(27b of the substrate 21 of led module 20), with terminal 26a and 26b welding.And lead-in wire 43a and the 43b other end (heart yearn) separately weld with the metal wiring of circuit substrate 41.

And lead-in

wire

43c and 43d will supply to the electric wire of drive circuit 40 for the electric power that led module 20 is lit a lamp from lamp holder 60.Lead-in wire 43c and a 43d end (heart yearn) separately and lamp holder 60(shell portion 61 or contact chip portion 63) is electrically connected, and the other end (heart yearn) passes through to weld etc. and is electrically connected with the electric power input part (metal wiring) of circuit substrate 41.

[framework]

As shown in Figure 2, framework 50 is be used to the circuit case of taking in drive circuit 40, is again the peripheral components that constitutes the periphery of bulb-shaped lamp 1.Therefore, framework 50 preferably is made of insulating materials, for example can utilize polybutylene terephthalate insulative resin materials such as (PBT) to wait to constitute.

And framework 50 is tubular, has at the first peristome 50a of enclosed globe shade one side with at the second peristome 50b of lamp holder one side.The first peristome 50a is with the state of the peristome 12 that surrounds enclosed globe shade 10 and be formed.That is to say, can be inserted into the state in the first peristome 50a and be formed with the peristome 12 of enclosed globe shade 10.And, the bottom butt of the 10a of jaw portion of the ring-shaped edge of the first peristome 50a and enclosed globe shade 10.By this formation, enclosed globe shade 10 is by framework 50 supportings.And the inner face of the first peristome 50a does not contact with the outside of the peristome 12 of enclosed globe shade 10, and design has the space between the first peristome 50a and peristome 12.

And in the present embodiment, framework 50 is made of outer part 51 and connecting portion 52, and this outer part 51 is formed its outside and exposes outside (in the atmosphere) at lamp, and this connecting portion 52 is connected with lamp holder 60.

Outer part 51 has the first peristome 50a, and outer part 51 is formed from the first peristome 50a towards the second peristome 50b, and its internal diameter and external diameter diminish gradually.

Inner face at outer part 51 is equipped with protuberance (substrate maintaining part) 51a, is used for mounting circuit substrate 41.Protuberance 51a is equipped with many places (for example three places) at the inner face of outer part 51.

And, be provided with fastener 51b at the inner face of outer part 51, be used for the flange part 70a that card ends circuit lid 70.Fastener 51b is equipped with many places (for example three places) at the inner face of outer part 51.Fastener 51b for example can be made of a pair of claw, is sandwiched in claw by making flange part 70a, thereby circuit lid 70 is maintained at framework 50.

And, the lamp holder 60 outer connecting portions 52 that are embedded in.Like this, the second peristome 50b of framework 50 is blocked.Be formed with the stubborn portion of closing of closing lamp holder 60 for twisting at the outer peripheral face of connecting portion 52, by lamp holder 60 is screwed into connecting portion 52, thereby be fixed on framework 50.

[lamp holder]

Lamp holder 60 is for accept to make led module 20(LED22 from the outside of lamp) power receiving section of luminous electric power.Lamp holder 60 for example is installed in the lamp socket of ligthing paraphernalia.Accordingly, make in bulb-shaped lamp 1 lights a lamp, lamp holder 60 can be accepted electric power from the lamp socket of ligthing paraphernalia.Lamp holder 60 for example is supplied to the alternating current from source power supply.In the present embodiment, lamp holder 60 is accepted alternating current by two contacts, is imported into the electric power input part of drive circuit 40 via pair of

lead wires

43c and 43b at the electric power of lamp holder 60 acceptance.

Lamp holder 60 has the end cylinder-shaped for metal, and having outer peripheral face is the shell portion 61 of public screw and the contact chip portion 63 that is installed in shell portion 61 by insulation division 62.Outer peripheral face at lamp holder 60 is formed with for the stubborn portion of closing of twisting the lamp socket that is incorporated into ligthing paraphernalia.And, be formed with for twisting the stubborn portion of closing of closing with the connecting portion 52 of framework 50 at the inner peripheral surface of lamp holder 60.

The kind of lamp holder 60 does not have special restriction, adopts Edison screw (E type) lamp holder of screw-type in the present embodiment.For example, can list E14 shape or E27 shape etc. as lamp holder 60.

[circuit lid]

Circuit lid 70 is the slightly round-ended cylinder parts that are formed the insulating properties of covering shape.Circuit lid 70 for example can use insulative resin material such as PBT to wait to constitute.

The upper shape of circuit lid 70 is formed along the back side shape of the pedestal 32 of bearing 30.Thereby circuit lid 70 is embedded in the rear side of pedestal 32.And circuit lid 70 is tightened fixing with bearing 30 by screw 80.

And, be designed to be the flange part 70a of the brim of a hat shape at circuit lid 70.The state that flange part 70a exposes with the pedestal 32 from bearing 30 and being formed, flange part 70a is by by being arranged on framework 50(outer part 51) fastener 51b card end, thereby circuit lid 70 is fixed on framework 50.

And, in the present embodiment, though be flange part 70a and bearing 30 with circuit lid 70 be inaccessible parts, be used for the opening of the peristome 12 of obstruction enclosed globe shade 10, but also can be only come the opening of occlusion of openings portion 12 by bearing 30.

[feature formation of the present utility model]

Below utilize Fig. 4 A to Fig. 4 C, the feature of the related bulb-shaped lamp 1 of present embodiment is described.Fig. 4 A, Fig. 4 B and Fig. 4 C are respectively for explanation comparative example in the past and the figure of the light distribution characteristic of the bulb-shaped lamp of embodiment of the present utility model.In each figure, the figure in left side shows the direct of travel of light in pattern, the right side illustrate distribution curve flux.The distribution curve flux of each figure of Fig. 4 A to Fig. 4 C shows, in the bulb-shaped lamp of formation shown in Figure 2, in the height H with the main part 11 of enclosed globe shade 10 _GLBBe made as under the situation of 50mm, with the height H of led module 20 _MDLCurve when being made as 0mm, 12mm, 32mm respectively.

Bulb-shaped lamp 101 shown in the left figure of Fig. 4 A is H _MDLBulb-shaped lamp in the past under=0 the situation is the formation that pillar 31 is not set in Fig. 2.In this case, as shown in the drawing, the light of led module 20 is advanced to the top one side diffusion of enclosed globe shade 10, because HMDL=0, the light that therefore advances to the led module 20 of lamp holder side has support unit (pedestal 32) and the framework 50 of led module 20 to block by mounting.Therefore, shown in the right figure of Fig. 4 A, in bulb-shaped lamp 101, the luminous flux that shines lamp holder 60 sides is less, can not shine the zone of lamp holder 60 1 sides with desirable illumination light.

Therefore, consider the bulb-shaped LED lamp of the formation of imitation incandescent lamp.For example shown in the left figure of Fig. 4 B, proposed to utilize the employed enclosed globe shade that is constituted by clear glass of incandescent lamp (clear lamp) 10, and led module 20 be configured to the formation (CMT:Center Mount Technology(center mounting technique) of the space center of this enclosed globe shade 10) bulb-shaped lamp 102.In this case, by led module 20 being fixed on the top of extending the pillar (support unit) 130 that arranges to the center of enclosed globe shade 10, thus the bulb-shaped lamp 102 that can realize having the CMT structure.

In the bulb-shaped lamp 102 of this structure, be not only outward appearance, also wish close to incandescent lamp for light distribution characteristic.That is, hope is to the big bulb-shaped LED lamp of the range of exposures of lamp holder 60 1 sides.

Especially to have with enclosed globe shade 10 be that upside (ceiling one side) lamp holder 60 is that downside (ground one side) mode is installed in the situation of ligthing paraphernalia to bulb-shaped LED lantern festival such as candle.In this case, the range of exposures towards lamp holder 60 sides is increased.

Yet in the formation of the bulb-shaped lamp 102 shown in the left figure of Fig. 4 B, shown in the right figure of Fig. 4 B, can not guarantee has sufficient luminous flux towards lamp holder 60 sides, therefore, can not obtain the fully big range of exposures to lamp holder 60 sides.

The utility model not only arrives top one side of enclosed globe shade 10 and have the light of emitting from led module 20, and can arrive the formation of lamp holder 60 1 sides as far as possible more at above-mentioned such problem.

Therefore, shown in the left figure of Fig. 4 C, in the bulb-shaped lamp 1 of present embodiment, led module 20 is configured in the center G of enclosed globe shade 10 _CNTSummit G with enclosed globe shade 10 _TOPBetween.Like this, in bulb-shaped lamp 1, not that led module 20 is configured in center G than enclosed globe shade 10 _CNTMore close to lamp holder 60 1 sides, but led module 20 is configured in direction away from lamp holder 60.

According to this formation, owing to can there be more light to arrive lamp holder 60 1 sides, therefore shown in the right figure of Fig. 4 C, the luminous flux towards lamp holder 60 sides is increased.Accordingly, can increase range of exposures towards lamp holder 60 sides.Therefore, can realize the wide bulb-shaped LED lamp of range of exposures that approaches with incandescent lamp.

And led module 20 preferably is configured in, the center G of enclosed globe shade 10 _CNTG with enclosed globe shade 10 _CNTSummit G with enclosed globe shade 10 _TOPMid point between.This be because, even led module 20 is configured in G than enclosed globe shade 10 _CNTSummit G with enclosed globe shade 10 _TOPThe summit G of the more close enclosed globe shade 10 of mid point _TOPOne side, the cause that also can increase hardly towards the luminous flux of lamp holder 60 sides.

At this, utilize Fig. 5 to the height H of the led module 20 of bulb-shaped lamp shown in Figure 21 _MDLDescribe with the relation of the light beam of lamp holder 60 sides.Fig. 5 shows in the related bulb-shaped lamp of embodiment of the present utility model, the relation of the light beam of the height of led module and lamp holder side.

From shown in Figure 5 as can be known, along with the height H of led module 20 _MDLIncrease, increase towards the light beam of lamp holder 60 sides.And Fig. 5 shows in the height H with the main part 11 of enclosed globe shade 10 _GLBResult when being made as 50mm.

And led module 20 is in the diametric width W of enclosed globe shade 10 _MDLBe preferably in the maximum inner diameter W of enclosed globe shade 10 _GLBMore than 1/2.By such formation, owing to can make the light of led module 20 be released to lamp holder 60 1 sides more, therefore, can increase the luminous flux towards lamp holder 60 sides.Accordingly, can further increase range of exposures towards lamp holder 60 sides.

And in this present embodiment, enclosed globe shade 10 is elongate in the direction vertical with the opening surface of peristome 12.Particularly, enclosed globe shade 10 is candle.Under the situation of employing as the elongated enclosed globe shade 10 of candle, making the range of exposures increase towards the lamp holder side is the comparison difficulty.In this present embodiment, led module 20 is owing to be configured in the center G of enclosed globe shade 10 _CNTSummit G with enclosed globe shade 10 _TOPBetween, therefore, even the enclosed globe shade of candle 10 also can make the light of led module 20 arrive lamp holder 60 1 sides more.Accordingly, the range of exposures towards lamp holder 60 sides is increased, thereby can realize more close to the wide bulb-shaped LED lamp of the range of exposures of incandescent lamp.

(lighting device)

And the utility model not only can be used as bulb-shaped lamp and realizes, and can be used as the lighting device that possesses bulb-shaped lamp and realize.

For example, the bulb-shaped lamp 1 of present embodiment can be applicable to the lighting device 2 of chandelier type shown in Figure 6.And lighting device is not limit by formation shown in Figure 6.Can either keep the bulb-shaped lamp 1 again can be to the lamp socket of bulb-shaped lamp 1 supply capability as lighting device as long as possess at least.

(variation etc.)

More than, based on embodiment the utility model related bulb-shaped lamp and lighting device are illustrated, but, the utility model is not limit by these embodiments.

For example, though enclosed globe shade 10 has adopted candle in the above-described embodiment, but be not to be limited by this.Not only can be candle as enclosed globe shade 10, and can adopt the employed shape of general incandescent lamp, for example can adopt shape shown in Figure 7, that is, can adopt an end to be closed the enclosed globe shade 10A that glomeration, the other end have peristome.Particularly, enclosed globe shade 10A is shaped as, and the part of the ball of hollow is along with extending the shape (the A shape of the C7710 defined of JIS) that narrows down away from the central part direction of ball, and is formed with peristome in the position away from the central part of ball.In addition, can also adopt G shape, E shape or the CA shape etc. of JIS defined as the shape of enclosed globe shade, perhaps can also adopt other the shape beyond the JIS.

And in the above-described embodiment, led module 20 has adopted the formation of the COB type of direct installation led chip as the light-emitting component on substrate 21, but, is not to be limited by this.For example as light-emitting component, also can adopt the led module of SMD type, specifically be to utilize by the resinous container with recess (cavity), be installed on led chip among the recess, be sealing into the LED element (SMD type LED element) of the encapsulation build that the seal member (containing the fluorophor resin) in the recess constitutes, a plurality of the constituting of substrate 21 installations that such LED element is being formed by metal wiring.

And, in the above-described embodiment, though adopted a substrate as the substrate 21 of led module 20, also can adopt two substrates that are formed with LED22 and seal member 23 on the surface, by this substrate back side each other being pasted and being in the same place, constitute a led module 20.Can realize the led module of double-side like this.

And in the above-described embodiment, the formation of led module 20 is emitted white light by blue led chip and yellow fluorophor, but is not to be limited by this.For example in order to improve color rendering except adding yellow fluorophor, can also sneak into red-emitting phosphors or green-emitting phosphor.And, also can not use yellow fluorophor, but adopt contain red-emitting phosphors or green-emitting phosphor contain the fluorophor resin, thereby by emitting white light with the blue led chip portfolio.

And in the above-described embodiment, led chip also can adopt the led chip of the light that sends blue color in addition.For example, send in use under the situation of led chip of ultraviolet, as fluorophor particle, can make up utilization to the versicolor fluorophor particle that sends three primary colors (red, green, blueness) light.And, also can use fluorophor particle material for transformation of wave length in addition, as material for transformation of wave length, for example can adopt and contain semiconductor, metal complex, organic dyestuff, pigment etc. and can absorb the light of certain wavelength, and send the material of the material of the light different with the light wavelength that absorbs.

And, in the above-described embodiment, electroluminescent) or solid-state light emitting element such as inorganic EL though show LED for example as light-emitting component, but also can adopt other semiconductor light-emitting elements, organic EL(Electro Luminescence such as semiconductor laser:.

In addition, under the situation that does not break away from purport of the present utility model, with those skilled in the art the various distortion that can expect be executed in the formation of present embodiment and variation, the formation after perhaps the inscape in embodiment and the variation being made up all is included in the scope of the present utility model.

The utility model can be as an alternative in the past bulb-shaped lamps such as incandescent lamp utilize, and can extensively be used in lighting device etc.

Claims

1. illumination light source possesses:

Enclosed globe shade;

Light emitting module is configured in the described enclosed globe shade; And

Pillar with towards the direction of the inside of described enclosed globe shade and be extended setting, and supports described light emitting module;

This illumination light source is characterised in that,

Described light emitting module is configured between the summit of the center of described enclosed globe shade and described enclosed globe shade.

2. illumination light source as claimed in claim 1 is characterized in that,

Described light emitting module possesses the substrate with light transmission and is installed in light-emitting component on the described substrate.

3. illumination light source as claimed in claim 2 is characterized in that,

Described substrate is being elongate with the slightly vertical direction of the length direction of described pillar.

4. as each described illumination light source of claim 1 to 3, it is characterized in that,

Described light emitting module is configured in, between the mid point on the summit of the center of described enclosed globe shade and the center of described enclosed globe shade and described enclosed globe shade.

5. as each described illumination light source of claim 1 to 3, it is characterized in that,

Described enclosed globe shade is rotary body;

The width of described light emitting module on the diametric(al) of described enclosed globe shade is more than 1/2 of the maximum inner diameter of described enclosed globe shade.

6. as each described illumination light source of claim 1 to 3, it is characterized in that,

Described enclosed globe shade is elongate in the direction vertical with the opening surface of this enclosed globe shade.

7. a lighting device is characterized in that, possesses the described illumination light source of claim 1.