CN104896324A

CN104896324A - Illumination light source and illumination device

Info

Publication number: CN104896324A
Application number: CN201510070761.9A
Authority: CN
Inventors: 中村康一; 高桥健治; 木部真树; 岩崎隆之; 若宫彰人; 北冈信一; 八木裕司; 北川浩规; 畑冈真一郎; 松本雅人
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2014-03-04
Filing date: 2015-02-11
Publication date: 2015-09-09
Anticipated expiration: 2035-02-11
Also published as: CN104896324B; JP2015167115A; JP6283910B2

Abstract

The invention discloses an illumination light source and an illumination device. The electric member provided by the invention is effectively contained in the illumination source and the illumination device in order to curb the reducction of the effect of the light source expansion. The stright-shaped LED lamp has: a thin ling frame body (30), a power supply lamp holder (40) covering the end of the long direction of the frame body, the LED member (12) configured inside the frame body, and a circuit substrate containing the first circuit component (22a) and the second circuit component (22d); the circuit member is used for providing power to the LED member; the circuit substrate has the first area (23) covered by the frame body and the power supply lamp and a second area (24) which is covered by the power supply holder. The first circuit element is set in the first area, the second circuit element is set in the second area, the first circuit element from the height of the substrate is lower than the height of the second circuit component.

Description

Illumination light source and lighting device

Technical field

The present invention relates to illumination light source and lighting device, such as, there is illumination light source and the lighting device of the light-emitting component of light emitting diode (LED: Light Emitting Diode) etc.

Background technology

LED, because efficiency is high and the life-span is long, therefore expects to become the light source substituting the various lamp such as in the past known fluorescent lamp or incandescent lamp.Wherein have employed the product of the lamp (LED) of LED also in constantly studied exploitation.

As this LED, known LED (Straight LED) (the referenced patent document 1) that have the Straight such as substituting straight-pipe fluorescent lamp.

Such Straight LED, possesses: the lamp holder arranged at the both ends of longilineal peripheral framework, LED module and make the lamp circuit (circuit substrate) of LED module lighting.LED module such as possesses: substrate and multiple LED element of installing on substrate.

Patent document 1: Japanese Unexamined Patent Publication 2009-043447 publication

When the distance of LED element and peripheral framework is short, the diffusion effect of the light sent from LED element can not be obtained fully, occur granular sensation.Therefore, the distance preferably between LED element and peripheral framework.

But, in the Straight LED that patent document 1 is recorded, the circuit substrate of component is installed, has been installed in the back side of LED module.Therefore, the surface (face that LED element is arranged) of LED module shortens with the distance of peripheral framework, and the diffusion effect of light is deteriorated.

Summary of the invention

So, the invention provides a kind of illumination light source and lighting device, component be accommodated in inside efficiently, reduce to suppress the diffusion effect of light.

In order to solve above-mentioned problem, the illumination light source that a scheme of the present invention relates to, possesses: longilineal framework; Lamp holder, covers the end of the length direction of described framework; Light-emitting component, is configured in described framework; And substrate, be provided with the multiple components comprising the first component and second circuit element, the plurality of component is used for providing electric power to described light-emitting component, and described substrate has: first area, covers this first area by described framework and described lamp holder; And second area, only cover this second area by the described lamp holder in described framework and described lamp holder, described first component is arranged on described first area, described second circuit element is arranged on described second area, described first component apart from described substrate aspect ratio described in the height of second circuit element low.

In addition, the illumination light source that a scheme of the present invention relates to can be that described substrate tilts relative to described length direction, broadens to make the space arranging described second circuit element in described lamp holder.

In addition, the illumination light source that a scheme of the present invention relates to can be that described multiple component is set to, and along from described first area to the direction of described second area, the height apart from described substrate uprises in order.

In addition, the illumination light source that a scheme of the present invention relates to can be that described light-emitting component is arranged on described substrate.

In addition, the illumination light source that a scheme of the present invention relates to, can be that described lamp holder accepts alternating current from outside, described alternating current be converted to direct current by described multiple component, and the direct current after conversion is supplied to described light-emitting component.

In addition, the lighting device that a scheme of the present invention relates to is the lighting device possessing described illumination light source.

According to the present invention, a kind of illumination light source and lighting device can be provided, component is accommodated in inside efficiently, reduce to suppress the diffusion effect of light.

Accompanying drawing explanation

Fig. 1 is the general survey oblique view of the example representing the Straight LED that embodiments of the present invention 1 relate to.

Fig. 2 is the sectional view of the part representing the Straight LED that embodiments of the present invention 1 relate to.

Fig. 3 is the sectional view of the part representing the Straight LED that the variation 1 of embodiments of the present invention 1 relates to.

Fig. 4 is the sectional view of the part representing the Straight LED that the variation 2 of embodiments of the present invention 1 relates to.

Fig. 5 A and Fig. 5 B is the sectional view of the effect of the circuit substrate of the inclination related to for illustration of the variation 2 of embodiments of the present invention 1.

Fig. 6 is the sectional view of other examples of the part representing the Straight LED that the variation 2 of embodiments of the present invention 1 relates to.

Fig. 7 is the general survey oblique view of the example representing the lighting device that embodiments of the present invention 2 relate to.

Symbol description

1,1a, 1b Straight LED (illumination light source)

2 lighting devices

11,11a substrate

12LED element (light-emitting component)

21,21a circuit substrate

22a, 22b, 22c, 22d component

23 first areas

24 second areas

30 frameworks

40 power supply lamp holders

50 non-powered lamp holders

Detailed description of the invention

Describe illumination light source and lighting device that embodiments of the present invention relate to reference to the accompanying drawings in detail.In addition, embodiment described below is all that the preferred object lesson of the present invention is shown.Therefore, the configuration of the numerical value shown in following embodiment, shape, material, inscape, inscape and type of attachment etc. are all examples of the present invention, and purport is not restriction the present invention.Therefore, in the inscape of following embodiment, for illustrating the inscape do not recorded in the independent claims of upper concept of the present invention, illustrate as arbitrary inscape.

Further, each figure is ideograph, is not rigorous diagram.Further, in each figure, identical symbol is imparted for identical component parts.

In embodiment below, the Straight LED of a form as illumination light source and the lighting device that possesses this Straight LED are illustrated.

(embodiment 1)

First the Straight LED that embodiments of the present invention 1 relate to is described.In addition, Straight LED of the present embodiment is an example of the illumination light source of the straight-pipe fluorescent lamp substituted in the past.

[entirety of Straight LED is formed]

First, utilize Fig. 1 and Fig. 2 to illustrate Straight LED of the present embodiment formation one example.

Fig. 1 is the general survey oblique view of the example representing the Straight LED that embodiments of the present invention 1 relate to.Fig. 2 is the sectional view of the part representing the Straight LED that embodiments of the present invention 1 relate to.In addition, Fig. 2 represents the cross section of the tube axial direction through Straight LED, represents the cross section (YZ cross section) vertical with LED module.

As shown in Figure 1 and Figure 2, Straight LED 1 possesses: LED module 10, lamp circuit 20, longilineal framework 30, the power supply lamp holder 40 being separately fixed at the end of the length direction (tube axial direction) of framework 30 and non-powered lamp holder 50, the lead-in wire 60 of powering to LED module 10 and lead-in wire 61.Straight LED 1 is such as the Straight LED of 40 shapes, and lamp total length is about 1200mm.

In addition, in Fig. 1 and Fig. 2, X-direction is the short direction of LED module 10.Y direction is the length direction of LED module 10, i.e. the tube axial direction of framework 30.Z-direction is the direction vertical with the interarea of LED module 10.

Below each component parts of Straight LED 1 is described in detail.

[LED module]

First LED module 10 of the present embodiment is described.

As shown in Figure 1, LED module 10 is light sources of Straight LED 1, is configured in framework 30.

LED module 10 of the present embodiment is light emitting modules that (SMD: Surface Mount Device) type is installed on surface.LED module 10 possesses: substrate 11 and be arranged on multiple LED element 12 of substrate 11.In addition, although not shown, also possess the metal wiring formed with regulation character pattern, this metal wiring is used for multiple LED element 12 is electrically connected.

Substrate 11 is the longilineal substrates be configured in framework 30.Substrate 11 is such as rectangular substrate.Substrate 11 is and mode that its short direction (X-direction of Fig. 1) with the short direction of framework 30 parallel parallel with the length direction (tube axial direction) of the framework 30 of Straight with its length direction (Y direction of Fig. 1), is configured in framework 30.

Substrate 11 has mutually opposing the first interarea (front) and the second interarea (back side).As shown in Figure 1 and Figure 2, the first interarea of substrate 11 is provided with multiple LED element 12 of being arranged on length direction and for providing the metal wiring of electric power (not shown) to multiple LED element 12.

Substrate 11 such as length is 1150 ~ 1200mm (length direction), and width is 5 ~ 25mm (short direction), and thickness is 0.3 ~ 2.0mm.

Specifically, substrate 11 is the installation base plates for installing LED element 12.Substrate 11 be such as with resin be substrate resin substrate, be the metallic substrates substrate of substrate with metal, the ceramic substrate be made up of pottery or the glass substrate etc. be made up of glass.

Resin substrate be such as the glass epoxy substrate (CEM-3, FR-4 etc.) be made up of glass fibre and epoxy resin, the substrate (FR-1 etc.) be made up of paper phenolic aldehyde or paper epoxy or be made up of polyimides etc. there is flexual flexible base board etc.Metallic substrates substrate is such as aluminium alloy base plate, the ferroalloy substrate or copper alloy substrate etc. that surface is formed with dielectric film.In the present embodiment, the double-sided substrate of CEM-3 is have employed as substrate 11.

In addition, as shown in Figure 2, substrate 11 is such as fixed on the inner surface of framework 30 in multiple position by adhesive 70.Adhesive 70 is such as silicone resin or adhesive.

Adhesive 70, in order to framework 30 and LED module 10 are adhesively fixed, is coated with intermittently between the inner surface and second interarea (back side) of substrate 11 of framework 30.In other words, substrate 11, in mutually different multiple positions of the length direction of substrate 11, is fixed on framework 30 by adhesive 70.In addition, adhesive 70 can be coated with continuously along the length direction of framework 30.

From the viewpoint of thermal diffusivity, thermal conductivity is preferably adopted to be the material of more than 1W/mK as adhesive 70.In addition, from light-weighted viewpoint, proportion is preferably adopted to be the material of less than 2 as adhesive 70.

In addition, replace adhesive 70 to adopt double faced adhesive tape, this double faced adhesive tape has the thickness and shape that the second interarea of substrate 11 and the inner surface of framework 30 can be made to bond.That is, as long as can the parts of fixing base 11 and framework 30, any can.

LED12 is an example of light-emitting component, is mounted on the substrate 11.In present embodiment, the length direction that multiple LED element 12 is installed to be along substrate 11 becomes row with line-shape arrangement.As shown in Figure 1, multiple LED element 12 is configured to be spaced from each other separately.

LED element 12 is light-emitting components of so-called SMD type, is exactly that LED chip and fluorophor are by the light-emitting component of packetize.LED element 12 possesses: the seal member wrapping, be configured in LED chip in bag and sealing LED chip.LED element 12 is such as the White LED element sending white light.

Bag is the container be shaped by white resin etc., possesses the recess (cavity) of the shape of falling truncated cone.The medial surface being configured to recess tilts, and makes the light from LED chip reflex to top.

LED chip is arranged on the recess bottom surface of bag.LED chip is the bare chip that can send monochromatic visible light, by die bonding material (chip attach material), pastes the bottom surface being arranged on the recess of bag.LED chip is such as the blue LED die that can send blue light when being energized.

Seal member be containing the fluorophor as optical wavelength conversion body containing fluorophor resin, be the wavelength specified by the light sent from LED chip conversion (colour switching).In addition, seal member protects LED chip by sealing LED chip.The recess of seal member filling bag, till being sealing into the opening surface of this recess.

Seal member, the color (wavelength) comprising the light sent according to LED chip and the color (wavelength) of light that is required as light source and the material selected.Such as when LED chip is blue LED die, in order to obtain white light, can adopt as seal member the yellow fluorophor particle dispersion that is by YAG (yttrium-aluminium-garnet) to silicones containing fluorophor resin.Accordingly, yellow fluorophor particle is encouraged by the blue light of blue LED die and releases sodium yellow, thus the synthesis light of blue light as energized sodium yellow and blue LED die, from seal member releasing white light.In addition, also silica (SiO can be contained in seal member ₂) etc. photodiffusion material.

The LED element 12 of such formation, have 2 electrode terminals of positive pole and negative pole, these electrode terminals are electrically connected with the metal wiring being formed on substrate 11.

Metal wiring is the metal wiring providing the electric power of regulation for multiple LED element 12 respectively.Metal wiring, is formed by pattern with the shape be prescribed in advance.In the present embodiment, Straight LED 1 adopts only from the one-sided power supply mode that the side of power supply lamp holder 40 powers to all LED element 12 in framework 30.

Metal wiring is such as made up of the metal with high conductance of copper (Cu) etc.Or metal wiring can be nickel, aluminium or gold or the stacked film be made up of metal plural in the middle of these or alloy.

In addition, in order to improve the light extraction efficiency of LED module 10, can at the top finishing whitewash of substrate 11 (white resist).White resist is because have high light reflectivity, so the light extraction efficiency of LED module 10 can be made to improve.In addition, by forming white resist, the insulating properties (withstand voltage) of substrate 11 can be improved, the oxidation of metal wiring can be suppressed.

[lamp circuit]

Lamp circuit 20 is LED point lamp circuit of the LED12 lighting for making to be arranged on LED module 10.Specifically, the alternating current that lamp circuit 20 inputs from external power source is converted to direct current, and the direct current after conversion is outputted to LED module 10.As shown in Figure 1, lamp circuit 20, possesses: circuit substrate 21, be arranged on the component group 22 of circuit substrate 21.

Circuit substrate 21 is the printed base plates of the Wiring pattern being formed regulation, this Wiring pattern is used for mounted electronic unit (component) to be electrically connected to each other, such as, as the metal substrate etc. that circuit substrate 21 can adopt glass epoxy substrate, ceramic substrate, flexual flexible base board or thermal diffusivity outstanding.

As shown in Figure 2, circuit substrate 21 is connected with the confession electrical prongs 42 of power supply with lamp holder 40 by lead-in wire 60.Specifically, 2 lead-in wire 60 (pair of lead wires) are electrically connected for electrical prongs 42 with the Wiring pattern being arranged on circuit substrate 21.Like this, the alternating current that can will accept for electrical prongs 42, is supplied to component group 22 (lamp circuit 20).

In addition, circuit substrate 21,61 to be connected with the substrate 11 of LED module 10 by going between.Specifically, the Wiring pattern being arranged on circuit substrate 21 is electrically connected with the Wiring pattern being arranged on substrate 11 by lead-in wire 61.Accordingly, the direct current that component group 22 (lamp circuit 20) generates can be supplied to LED element 12.

Lead-in wire 60 and 61 is such as the stranded line of fine copper wire, and surface is covered by the insulating properties parts of polyvinyl chloride or silicone rubber etc.Specifically, the metal wire etc. of electric conductivity is exposed, except the part at two ends is covered by insulating properties parts in the two ends of lead-in wire 60 and 61.The lead-in wire 60 and 61 metallic exposed portion of bag (two end portions) and cover part (parts except two ends).

In addition, lead-in wire 60 is welded on the Wiring pattern of circuit substrate 21.Equally, lead-in wire 61 is welded on the Wiring pattern of circuit substrate 21 and substrate 11.Now, lead-in wire 60 and 61 can be connected by connector with Wiring pattern.Specifically, the end of lead-in wire 60 and 61 arranges splicing ear, and be located at the splicing ear of circuit substrate 21 and substrate 11 with replacing each metal electrode, lead-in wire 60 and 61 can be connected by connector.Specifically, splicing ear has the lamp holder of resin type and the connector for accepting galvanic conductive part (pin).

Circuit substrate 21, the mode exceeding framework 30 with a part is configured in framework 30.In other words, circuit substrate 21 has first area 23 and second area 24, and first area 23 is the regions covered by framework 30 and power supply lamp holder 40, and second area 24 is the regions only covered by power supply lamp holder 40 in framework 30 and power supply lamp holder 40.First area 23 and second area 24 are respectively equipped with in component group 22 at least one of the multiple components comprised.

Circuit substrate 21 has mutually opposing the first interarea (front) and the second interarea (back side).Component group 22 is arranged on the first interarea of circuit substrate 21.As shown in Figure 2, circuit substrate 21, in the equal mode of the height of the first interarea of circuit substrate 21 apart from the first interarea distance framework 30 of height and the substrate 11 of framework 30, is arranged in power supply lamp holder 40.In other words, circuit substrate 21 is set as, and the first interarea of circuit substrate 21 and the first interarea of substrate 11 are the same faces.

Circuit substrate 21, is fixed on framework 30 and power supply lamp holder 40.Such as, as shown in Figure 2, the second interarea of circuit substrate 21, is adhesively fixed at the inner surface of framework 30 by adhesive 71, is adhesively fixed at the inner surface of power supply lamp holder 40 by adhesive 72.

Now, adhesive 71 and adhesive 72, such as, be made up of the material identical with the adhesive 70 of framework 30 with fixing base 11.Specifically, adhesive 71 and adhesive 72 are silicone resin or adhesive.In addition, be coated with adhesive 70 ~ 72 intermittently in the example shown in Fig. 2, but, also can coating adhesive 70 ~ 72 continuously.That is, adhesive 70 ~ 72 can be coating all-in-one-piece adhesive.

In addition, circuit substrate 21 can be fixed on either party in framework 30 and power supply lamp holder 40.Or circuit substrate 21 also can be fixed on LED module 10.

Component group 22 comprises multiple component 22a ~ 22d of LED element 12 lighting for making LED module 10.Component 22a ~ 22d is electrically connected by the Wiring pattern formed at circuit substrate 21.The alternating current inputted from external power source is converted to direct current by component 22a ~ 22d, and the direct current after conversion is supplied to LED element 12.

Component 22a ~ 22d is such as convertor circuit element, detection resistance or fuse element etc.As component 22a ~ 22d, according to other needs, also resistance, capacitor, coil, diode or triode etc. can be adopted.

As shown in Figure 2, component 22a ~ 22c is an example of the first component being arranged on first area 23.Component 22d is an example of the second circuit element being located at second area 24.The height apart from circuit substrate 21 of the first component is lower than the height apart from circuit substrate 21 of second circuit element.

Component 22a is in multiple components of comprising of component group 22, the element that the height apart from circuit substrate 21 is minimum.Such as, element highly low when component 22a is the small-sized of resistance or diode etc. and is arranged on substrate.Component 22a is configured in from the nearest position of LED module 10 (LED element 12) in first area 23.

Component 22b is in multiple components of comprising of component group 22, the element that the aspect ratio component 22a apart from circuit substrate 21 is high, lower than component 22c.Such as, element highly low when component 22b is the relatively small-sized of transistor etc. and is arranged on substrate.Component 22b is configured between component 22a and component 22c in first area 23.

Component 22c is in multiple components of comprising of component group 22, the element that the aspect ratio component 22b apart from circuit substrate 21 is high, lower than component 22d.Such as, the element that when component 22c is the medium-sized of rectification circuit or ceramic capacitor etc. and is arranged on substrate, aspect ratio is higher.Component 22c is configured in compared with the position of component 22a and 22b closer to second area 24 in first area 23.

Component 22d is in multiple components of comprising of component group 22, the element that the height apart from circuit substrate 21 is the highest.Such as, component 22d be choking-winding or electrolytic capacitor etc. large-scale and be arranged on substrate time highly high element.Component 22d is configured in from LED module 10 (LED element 12) position farthest in second area 24.

Like this, in multiple components that component group 22 comprises, relatively tall component is configured in second area 24, and relatively sawed-off component is configured in first area 23.Such as, in the multiple components comprised in component group 22, the component that can enter the size in framework 30 is configured in first area 23 as much as possible.

Accordingly, the quantity of the component configured at second area 24 can be reduced, second area 24 can be effectively utilized.Such as, second area 24 can be made to diminish, power supply lamp holder 40 namely can be made to diminish.By making power supply lamp holder 40 diminish, the free degree of design can be improved, the adaptability to ligthing paraphernalia can be improved.

In addition, larger component can be configured at second area 24.Such as, at second area 24 component that preferentially configuration is tall, larger component can be made to be received in power supply lamp holder 40.

In addition, in the example shown in fig. 2, configure multiple component 22a ~ 22c in first area 23, be configured with 1 component 22d at second area 24, but be not limited only to this.Also multiple component can be configured respectively in first area 23 and second area 24, or, 1 component can be configured in first area 23, configure multiple component at second area 24.

In addition, as shown in Figure 2, multiple component with being arranged in order of uprising to the direction of second area 24 from first area 23, but be not limited only to this.

Such as, than the sawed-off tertiary circuit element of the first component configured in first area 23, second area 24 can be configured in together with second circuit element.Such as, can be that component 22a and 22d is configured in second area 24, component 22b and 22c be configured in first area 23.Now, component 22a is an example of tertiary circuit element, and component 22b and 22c is an example of the first component.

In addition, four component more tall than the second circuit element configured at second area 24, can be configured in first area 23 together with the first component.Such as, can be that component 22b and 22d is configured in second area 24, component 22a and 22c be configured in first area 23.Now, component 22b is an example of second circuit element, and component 22c is an example of the 4th component.

In addition, the allocation position being configured in multiple components of first area 23 is not defined, such as, and can by from first area 23 to the component that is arranged in order of the direction step-down of second area 24.Equally, the allocation position being configured in multiple components of second area 24 is not defined, such as, and can by from first area 23 to the component that is arranged in order of the direction step-down of second area 24.

In addition, circuit substrate 21 can stretch out from power supply lamp holder 40.In other words, circuit substrate 21 can have framework 30 and the 3rd region covered by framework 30 in power supply lamp holder 40.In addition, can at the 3rd area configurations component.Now, be preferably at the component of the 3rd area configurations the component configured than first area and second area short.Specifically, the component 22a that height is the shortest can be configured in the 3rd region.

[framework]

Framework 30 is longilineal frameworks that inside is configured with substrate 11.Specifically, framework 30 is the longilineal translucent cover with light transmission of the part covering LED module 10.

Such as, as shown in Figure 1, framework 30 is longilineal cylindrical body that both ends have opening.Specifically, framework 30 is outer tubes of Straight, is made up of transparent resin material or glass.Framework 30 is the cross sections (XZ cross section) in short direction is circular cylinder.In addition, the end of a side of the length direction of framework 30, is powered and covers with lamp holder 40.In addition, the end of the opposing party of the length direction of framework 30, is covered by non-powered lamp holder 50.

Such as, the glass valves (transparent valve) of framework 30 to be relative visible rays be transparent quartz glass.In that case, the LED module 10 of configuration in framework 30, can from the outside visuognosis of framework 30.

Specifically, framework 30 be as principal component comprise silica be 70 ~ 72% soda-lime glass, thermal conductivity be the glass tube (glass valves) of about 1.0W/mK.Or framework 30 also can be the plastic tube of the resin material comprising propylene (PMMA) or Merlon (PC) etc.

In addition, in order to make the light from LED module 10 spread, framework 30 can have light diffusion function.Such as, light diffusing sheet or optical diffusion film can be formed at the inner surface of framework 30 or outer surface.Specifically, by the resin of the light diffusion materials (particulate) containing silica or charcoal acid calcium etc. or Chinese white being coated in inner surface or the outer surface of framework 30, milky optical diffusion film can be formed.

In addition, can by the lens arrangement thing in the inside of framework 30 or outer setting, or the recess formed at inner surface or the outer surface of framework 30 or protuberance, realize light diffusion function.Such as, by the inner surface of framework 30 or outer surface printing dot pattern, or a part for framework 30 is processed, can light diffusion function be realized.Or, framework 30 itself can be formed by adopting the resin material etc. being dispersed with photodiffusion material, thus realize light diffusion function.

Like this, by making framework 30 have light diffusion function, thus when passing through framework 30 from the light that LED module 10 is released, this light spreads.Such as, as present embodiment, when the LED element 12 of SMD type configures separatedly, likely there is the granular sensation (brightness dispersion) of light.For this, by making framework 30 have light diffusion function, the granular sensation of light just can be suppressed.

[power supply lamp holder]

Power supply lamp holder 40 is the lamp holders for feeding electrical power to LED module 10.In other words, power supply lamp holder 40 accepts the electric power making the luminescence of multiple LED element 12.Specifically, power supply lamp holder 40 accepts alternating current from outside.

Power supply lamp holder 40, is arranged on the end of a side of the length direction (Y direction) of framework 30 or substrate 11.Power supply lamp holder 40 accepts the electricity for making LED element 12 lighting from lamp outside.

Power supply lamp holder 40, to cover the mode of the end of a side of the length direction of framework 30, is configured to cap-like.In other words, power supply lamp holder 40, in there being bottomless drum shape shape, is configured to the end of a side of the length direction covering framework 30.Such as, power supply lamp holder 40 is adhesively fixed in the end of a side of framework 30 by adhesive.In the present embodiment, power supply lamp holder 40 has opening a side, and the opposing party has the cylinder of bottom.

In addition, the adhesive used during bonding with framework 30 of power supply lamp holder 40 is such as silicone resin.Such as, the adhesive used during the bonding of power supply lamp holder 40 with framework 30 and following adhesive are made up of identical material, the adhesive 72 used when the adhesive 70 or 71 used when namely substrate 11 or circuit substrate 21 are connected with framework 30 or circuit substrate 21 are connected with cap body 41.

As shown in Figure 1, power supply lamp holder 40 possesses cap body 41 and supplies electrical prongs 42.

Cap body 41 is arranged on the end of a side of the length direction of framework 30.Such as, cap body 41 is cap body of tubular, forms the periphery of power supply lamp holder 40.Cap body 41 keeps for electrical prongs 42.

Specifically, cap body 41 is cap body of the tubular with opening and bottom.Cap body 41 of the present embodiment has round-ended cylinder shape, has circular open and discoidal bottom.

Cap body 41, such as, be made up of the resin material of polybutylene terephthalate (PBT) etc.Here, power supply lamp holder 40 is such as produced according to using the insertion supplying electrical prongs 42 and resin material to be shaped.In addition, the cap body 41 as resin molded body can be pressed into for electrical prongs 42, make power supply lamp holder 40.

For the example that electrical prongs 42 is bayonet pegs, be arranged on cap body 41.Specifically, for electrical prongs 42 be the pair of conductive pin accepting the electric power for making LED module 10 luminescence from external equipments such as ligthing paraphernalias.

Such as, form for the metal material of electrical prongs 42 by brass etc.By the bearing by being arranged on ligthing paraphernalia for electrical prongs 42, alternating current can be accepted from system power supply etc. for electrical prongs 42.

Specifically, the bottom of through cap body 41 is set to for electrical prongs 42.For electrical prongs 42, give prominence to toward the outer side from the outer surface of the bottom of cap body 41, and outstanding from the inner surface of the bottom of cap body 41 towards opening.For in electrical prongs 42 from the part that the inner surface of the bottom of cap body 41 is outstanding to opening, 60 to be connected with the metal electrode of circuit substrate 21 by going between.

In addition, power supply lamp holder 40 of the present embodiment is GX16t-5 lamp holders (L shape pin cap) of the Straight LED according to " JIS C 7709-1 ", so are L-shaped for electrical prongs 42.

[non-powered lamp holder]

Non-powered lamp holder 50 is the lamp holders with non-powered side Straight LED 1 being installed to the function of ligthing paraphernalia.Non-powered lamp holder 50, as shown in Figure 1, is arranged on the end of the opposing party of the length direction (Y direction) of framework 30 or substrate 11.In other words, non-powered lamp holder 50, is arranged on the end of the opposition side of the end (end of a side) of the length direction of the framework 30 arranging power supply lamp holder 40.In addition, non-powered lamp holder 50 can make the regulation local ground of LED module 10 via ligthing paraphernalia.

Non-powered lamp holder 50, to cover the mode of the end of the opposing party of the length direction of framework 30, is configured to cap-like.In other words, non-powered lamp holder 50 has been configured to bottomless drum shape shape, is configured to the end of the opposing party of the length direction covering framework 30.Such as, non-powered lamp holder 50 is adhesively fixed in the end of the opposing party of framework 30 by adhesive.In the present embodiment, non-powered lamp holder 50 has opening a side, and the opposing party has the cylinder of bottom.

In addition, the adhesive used when non-powered lamp holder 50 bonds with framework 30 is such as silicone resin.Such as, the adhesive used when non-powered lamp holder 50 bonds with framework 30, the adhesive used when being connected with framework 30 or cap body 51 with substrate 11, is made up of identical material.

As shown in Figure 1, non-powered lamp holder 50 possesses cap body 51 and non-powered pin 52.

Cap body 51, is arranged on the end of the opposing party of the length direction of framework 30.Such as, cap body 51 is cap body of tubular, forms the periphery of non-powered lamp holder 50.Cap body 51 keeps non-powered pin 52.

Specifically, cap body 51 is cap body of the tubular with opening and bottom.Cap body 51 of the present embodiment has round-ended cylinder shape, has circular open and discoidal bottom.

Cap body 51, such as, be made up of the resin material of polybutylene terephthalate (PBT) etc.Here, non-powered lamp holder 50 is such as produced according to using the insertion of non-powered pin 52 and resin material to be shaped.In addition, by being pressed into non-powered pin 52 to as in the cap body 51 of resin molded body, thus make power supply lamp holder 50.

Non-powered pin 52 is examples for bayonet peg, is the installation pin for Straight LED 1 being installed to ligthing paraphernalia.Such as, non-powered pin 52 is the T-shaped conductive base pins in the cross section that is made up of the metal material of brass etc.

Non-powered pin 52 is set as to be given prominence to toward the outer side from the bottom of cap body 51.Non-powered pin 52 does not expose the inner surface side in cap body 51, but is embedded in cap body 51.In addition, non-powered pin 52 can be formed the bottom of through cap body 51.Specifically, non-powered pin 52, can give prominence to toward the outer side from the outer surface of the bottom of cap body 51, and outstanding to opening from the inner surface of the bottom of cap body 51.

[effect etc.]

As mentioned above, Straight LED 1 of the present embodiment possesses: longilineal framework 30, cover the power supply lamp holder 40 of the end of the length direction of framework 30, be configured in the LED element 12 in framework 30, and be provided with the circuit substrate 21 of the component group 22 for providing electric power to LED element 12, this component group 22 comprises component 22a and component 22d, circuit substrate 21 has the first area 23 covered by framework 30 and power supply lamp holder 40, and the second area 24 only covered by the power supply lamp holder 40 in framework 30 and power supply lamp holder 40, component 22a is arranged on first area 23, component 22d is arranged on second area 24, the height of the aspect ratio component 22d apart from circuit substrate 21 of component 22a is low.

Accordingly, component group 22 is arranged in power supply lamp holder 40, be located at LED module 10 rear side situation compared with, the distance of LED element 12 and framework 30 can be guaranteed.Therefore, it is possible to suppress the diffusion effect from the light of LED element 12 to reduce.

In addition, first area 23 is the regions in framework 30, but, is powered and covers with lamp holder 40.Therefore, even if arrange LED element 12 in first area 23, from the light of LED element 12 being arranged on first area 23, emit to outside hardly.Therefore, even if arrange LED element 12 in first area 23, small to the contributing effect of the luminous flux of Straight LED 1 etc.Therefore, LED element 12 is not set in first area 23, but component 22a is set, thus the space in power supply lamp holder 40 can be effectively utilized.

In addition, by arranging component 22a in first area 23, thus the quantity of the component arranged at second area 24 can be reduced.Thus, second area 24 can be made to diminish, power supply lamp holder 40 namely can be made to diminish.Like this, by making power supply lamp holder 40 diminish, the free degree of design can be improved, the adaptability to ligthing paraphernalia can be improved.

Now, component 22a low for the height apart from circuit substrate 21 is arranged on first area 23, and highly high component 22d is arranged on second area 24.That is, such as in the framework 30 less than power supply lamp holder 40 diameter, small-sized component 22a can be set, in the power supply lamp holder 40 larger than framework 30 diameter, large-scale component 22d be set, so the space of power supply lamp holder 40 can be effectively utilized.

In addition, in Straight LED 1 of the present embodiment, power supply lamp holder 40 accepts alternating current from outside, and alternating current is converted to direct current by component group 22, and the direct current of conversion is supplied to LED element 12.

Accordingly, for alternating current is converted to galvanic component, majority is the large-scale component of such as choking-winding etc.Therefore, small-sized component is configured in first area 23, and large-scale component is configured in second area 24, so more effectively can utilize the space in power supply lamp holder 40.

(variation 1 of embodiment 1)

In embodiment 1, describe the example of the circuit substrate 21 component group 22 being arranged on the substrate different from the substrate 11 being provided with LED element 12, but be not limited only to this.As shown in the variation 1 of embodiment 1, the substrate that can be set up in LED element 12 arranges component group 22.

Utilize Fig. 3 so that the Straight LED 1a that the variation 1 of embodiment 1 relates to be described below.Fig. 3 is the sectional view of the part representing the Straight LED that the variation 1 of embodiments of the present invention 1 relates to.In addition, identical with Fig. 2, Fig. 3 is through the cross section of the tube axial direction of Straight LED, and the cross section (YZ cross section) vertical with LED module is shown.In addition, be described centered by the part different from embodiment 1 below, identical part is omitted the description sometimes.

As shown in Figure 3, component group 22 is arranged on the substrate 11a being provided with LED element 12.

Substrate 11a is the longilineal substrate be configured in framework 30.Substrate 11a is such as rectangular substrate.Substrate 11a is parallel with the length direction (tube axial direction) of the framework 30 of Straight with its length direction (Y direction of Fig. 1), and the mode that its short direction (X-direction of Fig. 1) is parallel with the short direction of framework 30, is configured in framework 30.

Now, the end of at least one party of the length direction of substrate 11a, stretches out from framework 30.Specifically, the end of power supply lamp holder 40 side in the end of the length direction of substrate 11a is stretched out from framework 30, is covered by power supply lamp holder 40.Such as, substrate 11a is on length direction, longer than framework 30.

Substrate 11a has mutually opposing the first interarea (front) and the second interarea (back side).As shown in Figure 1, first interarea of substrate 11a is provided with multiple LED element 12 of being arranged on length direction and the metal wiring (not shown) for supplying electric power to multiple LED element 12.

In addition, substrate 11a is such as fixed on the inner surface of framework 30 on multiple position by adhesive 70.In addition, substrate 11a is such as made up of the material identical with substrate 11.

As shown in Figure 3, substrate 11a has first area 23 and second area 24.Identical with embodiment 1, component group 22 is arranged on first area 23 and second area 24.In addition, LED element 12 is arranged on the interarea identical with substrate 11a with component group 22.Specifically, component group 22 is arranged on the first interarea.

By the metal wiring being arranged on substrate 11a, component group 22 and LED element 12 are electrically connected.In other words, component group 22 is arranged on the substrate (that is, substrate 11a) identical with LED element 12, does not need by connection substrates such as lead-in wire and connectors.Therefore, it is possible to minimizing number of elements, become simple so form, cost degradation and the raising of assembling operation efficiency can be realized.

As mentioned above, in the Straight LED 1a that modified embodiment of the present embodiment 1 relates to, LED element 12 is arranged on substrate 11a.

Accordingly, comparing with the situation that component group 22 is arranged on different substrates with LED element 12, the element of the lead-in wire and connector etc. for connecting different substrates can being cut down.Therefore, it is possible to simplify the formation of Straight LED 1a, cost degradation and the raising of assembling operation efficiency can be realized.

(variation 2 of embodiment 1)

The example that circuit substrate 21 is parallel with the length direction of framework 30 is shown in embodiment 1, but, has been not limited only to this.As shown in the variation 2 of embodiment 1, circuit substrate can configure obliquely relative to the length direction of framework 30.

Utilize Fig. 4, Fig. 5 A and Fig. 5 B so that the Straight LED 1b that the variation 2 of embodiment 1 relates to be described below.Fig. 4 is the sectional view of the part representing the Straight LED that the variation 2 of embodiments of the present invention 1 relates to.Fig. 5 A and Fig. 5 B is the sectional view of the effect of the circuit substrate of the inclination related to for illustration of the variation 2 of embodiments of the present invention 1.

In addition, identical with Fig. 2, Fig. 4, Fig. 5 A and Fig. 5 B is through the cross section of the tube axial direction of Straight LED, and the cross section (YZ cross section) vertical with LED module is shown.In addition, be described centered by the part different from embodiment 1 below, identical part is omitted the description sometimes.

As shown in Figure 4, circuit substrate 21a configures obliquely relative to the length direction of framework 30.Specifically, circuit substrate 21a, in the mode broadened with the space arranging component 22d in lamp holder 40 of powering, configures obliquely relative to the length direction of framework 30.

In other words, the mode that circuit substrate 21a broadens with the space formed by the first interarea of second area 24 and the inner surface of power supply lamp holder 40 tilts.In other words, circuit substrate 21a, tilts in the mode of the first interarea of second area 24 away from the opposed inner surface of power supply lamp holder 40.That is, circuit substrate 21a, tilts in the mode that the inner surface of the second interarea of second area 24 and power supply lamp holder 40 is close.

When circuit substrate 21a does not tilt, as shown in Figure 5 B, power supply lamp holder 40, according to the size of the component 22d as maximum component, needs the diameter of length r2.When circuit substrate 21a tilts, as shown in Figure 5A, power supply lamp holder 40, according to the size of the component 22d as maximum component, needs the diameter of length r1 just enough.Now, r1<r2.

By making circuit substrate 21a tilt, and first interarea of circuit substrate 21a and the power supply distance between the inner surface of lamp holder 40 becomes greatly, and the space of configuration circuit element 22d broadens.Therefore, the space between the inner surface of component 22d and power supply lamp holder 40 is diminished, as shown in Figure 5A, the diameter of power supply lamp holder 40 can be made to diminish.

Like this, by making circuit substrate 21 configure obliquely, thus the space that the first interarea of second area 24 is formed with the inner surface of lamp holder 40 with power supply, the space that specifically component 22d is configured broadens.Therefore, larger component 22d can be configured in electricity lamp holder 40.In other words, in the mode of the size of applicable component 22d, power supply lamp holder 40 can be made to diminish.

In addition, larger component can be received conversely speaking, in power supply lamp holder 40.That is, by being configured obliquely by circuit substrate, thus the space that component is configured becomes large, so can receive larger component in this space.

In addition, in this variation, component 22a ~ 22d, with from first area 23 to the direction of second area 24, the mode that the height apart from circuit substrate 21a uprises is arranged.By arranging component by high order, thus when making circuit substrate 21a tilt, component is not abutted as far as possible with the inner surface of framework 30 or the inner surface of power supply lamp holder 40.In other words, the diameter of framework 30 and power supply lamp holder 40 can be made to diminish.

As mentioned above, in the Straight LED 1b that modified embodiment of the present embodiment 2 relates to, circuit substrate 21a, in the mode broadened with the space arranging component 22d in lamp holder 40 of powering, configures obliquely relative to length direction.

Accordingly, the space formed by the first interarea of second area 24 and the inner surface of power supply lamp holder 40 broadens, so can configure larger component 22d in power supply lamp holder 40.In other words, in the mode of the size of applicable component 22d, power supply lamp holder 40 can be made to diminish.

In addition, in the Straight LED 1b that modified embodiment of the present embodiment 2 relates to, component group 22, with from first area 23 to the direction of second area 24, the mode that the height apart from circuit substrate 21a uprises in order is arranged.

Like this, by arranging multiple components that component group 22 comprises by high order, thus when making circuit substrate 21a tilt, component is not abutted as far as possible with the inner surface of framework 30 or the inner surface of power supply lamp holder 40.In other words, the diameter of framework 30 and power supply lamp holder 40 can be made to become less.

In addition, at least one party of the first component and second circuit element, can be arranged in the mode across first area and second area.Such as, at the second circuit element that second area is arranged, its part can be arranged on first area.In addition, the first component arranged in first area, its part can be arranged on second area.

Fig. 6 is the sectional view of other examples of the part representing the Straight LED that the variation 2 of embodiments of the present invention 1 relates to.As shown in Figure 6, a part of component 22d can be configured in first area 23.Specifically, component 22d is such as at the length direction of substrate 11, is positioned at the component closest to power supply lamp holder 40 side.Accordingly, the length of the length direction of power supply lamp holder 40 can be shortened.

(embodiment 2)

The lighting device that embodiments of the present invention 2 relate to is the lighting device possessing above-mentioned illumination light source.Such as, the lighting device that embodiment 2 relates to possesses: the Straight LED 1 that embodiment 1 relates to.

Fig. 7 is the general survey oblique view of the example representing the lighting device 2 that embodiments of the present invention 2 relate to.As shown in Figure 7, the lighting device 2 that embodiment 2 relates to is basic lamp, and it possesses Straight LED 1, ligthing paraphernalia 200.

Straight LED 1 is the Straight LED 1 that embodiment 1 relates to, and the illumination light source as lighting device 2 uses.In addition, lighting device 2 of the present embodiment possesses two Straight LED 1 as an example.

Ligthing paraphernalia 200 is electrically connected with Straight LED 1, and possesses a pair bearing 210 keeping Straight LED 1 and the appliance body 220 installing bearing 210.

Appliance body 220 is such as shaped by carrying out punch process etc. to aluminium steel plate.In addition, its surface has the function of reflecting surface, and the light sent from Straight LED 1 is reflected to prescribed direction (such as, below).

Ligthing paraphernalia 200, such as, install via fixer at ceiling etc.In addition, can the circuit etc. of the built-in lighting for controlling Straight LED 1 in ligthing paraphernalia 200.In addition, cap assembly can be arranged be used for covering Straight LED 1.

As mentioned above, lighting device 2 of the present embodiment, identical with other embodiment, component is accommodated in inside efficiently, reduces to suppress the diffusion effect of light.

(other)

Above, the illumination light source that the present invention relates to and lighting device, be illustrated according to described embodiment, but, the present invention not limit by described embodiment.

Such as, in the embodiment shown, describing LED module is have employed the situation by the LED module of the SMD type of the LED element of packetize, but is not limited only to this.LED module also can be that multiple LED chip is directly installed on substrate, by the LED module encapsulating COB (Chip On Board: the chip on board) type formed of multiple LED chip containing phosphor body resin in the lump.

In addition, the substrate (LED module) configured in framework can arrange more than two by the mode of series connection or parallel connection.In this situation, the metal wiring of each substrate setting can be connected to via splicing ear.

In addition, framework is such as made up of the longilineal translucent cover and base plate that cover LED module.In this situation, LED module is such as positioned in base plate.In other words, framework can not be the framework of one, can be that the framework etc. be made up of translucent cover and base plate can be divided into multiple frameworks.

In addition, in said embodiment, the example that framework and lamp holder are cylinders is illustrated, but, is not limited thereto.Such as, framework and lamp holder can be bottom and opening is rectangular square tube.

In addition, in said embodiment, show the example that cap body is the slightly homogeneous cylinder of overall diameter and interior diameter, but, be not limited thereto.Such as, the overall diameter of cap body and at least one party of interior diameter can be inhomogenous.

In addition, cap body can not have bottom.In other words, cap body can be the cylindrical shell at two ends with opening.

In addition, such as, although power supply mode adopted in the above-described embodiments is only from the one-sided one-sided power supply mode of powering to all LED in framework of power supply lamp holder, but the both sides of the lamp holder of bilateral also can be adopted to be all bilateral power supply mode for the G13 lamp holder of electrical prongs and L shape lamp holder etc.In that case, the confession electrical prongs of a side side and the confession electrical prongs of the opposing party side can be adopted to be all the formation of 1 pin.Or, the confession electrical prongs of a side side and the confession electrical prongs of the opposing party side can be adopted all to supply electrical prongs as a pair, accept the formation of electric power from bilateral.In addition, for electrical prongs or non-powered pin, be not only limited to bar-shaped metal, can be made up of flat metal etc. for a pair.

In addition, the form of described power supply mode, in the Straight LED that the present invention relates to, such as, can enumerate following change case.That is, be L shape lamp holder and the opposing party side by a side side be one-sided power supply mode, the bilateral power supply mode that bilateral is made up of L shape lamp holder, the one-sided power supply mode that bilateral is made up of L shape lamp holder, the bilateral power supply mode be made up of G13 lamp holder and the one-sided power supply mode etc. be made up of G13 lamp holder that the lamp holder with non-powered pin is formed.

In addition, the Straight LED that described embodiment relates to, although be the mode accepting alternating current from external power source, but, also can be accept galvanic mode from external power source.

In addition, in the embodiment shown, although the formation that LED module adopts releases white light by blue LED die and yellow fluorophor, but do not limit by this.Such as, also can adopt containing red-emitting phosphors and green-emitting phosphor containing fluorophor resin, release white light by carrying out combination with blue LED die.In addition, the LED chip of the light sent beyond blueness can be adopted, such as adopt the UV LED chip of releasing the short ultraviolet light of the wavelength of blue light of releasing than blue LED die, release white light by the blue emitting phophor particle of emit blue light, red light and green light primarily of uv light induction, green-emitting phosphor particle and red-emitting phosphors particle.

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

In addition, implement the various distortion that those skilled in the art can expect and the embodiment obtained for each embodiment, and without departing from the spirit and scope of the invention the embodiment that the inscape in each embodiment and function are combined and realize all is included in the present invention.

Claims

1. an illumination light source, possesses:

Longilineal framework;

Lamp holder, covers the end of the length direction of described framework;

Light-emitting component, is configured in described framework; And

Substrate, is provided with the multiple components comprising the first component and second circuit element, and the plurality of component is used for providing electric power to described light-emitting component,

Described substrate has:

First area, covers this first area by described framework and described lamp holder; And

Second area, only covers this second area by the described lamp holder in described framework and described lamp holder,

Described first component is arranged on described first area,

Described second circuit element is arranged on described second area,

Described first component apart from described substrate aspect ratio described in the height of second circuit element low.

2. illumination light source as claimed in claim 1,

Described substrate tilts relative to described length direction, broadens to make the space arranging described second circuit element in described lamp holder.

3. illumination light source as claimed in claim 1 or 2,

Described multiple component is set to, and along from described first area to the direction of described second area, the height apart from described substrate uprises in order.

4. illumination light source as claimed in claim 1,

Described light-emitting component is arranged on described substrate.

5. illumination light source as claimed in claim 1,

Described lamp holder accepts alternating current from outside,

Described alternating current is converted to direct current by described multiple component, and the direct current after conversion is supplied to described light-emitting component.

6. a lighting device,

Possesses the illumination light source described in any one of claim 1 to 5.