CN203615157U - Light and lighting device - Google Patents

Light and lighting device Download PDF

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Publication number
CN203615157U
CN203615157U CN201390000061.7U CN201390000061U CN203615157U CN 203615157 U CN203615157 U CN 203615157U CN 201390000061 U CN201390000061 U CN 201390000061U CN 203615157 U CN203615157 U CN 203615157U
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CN
China
Prior art keywords
lamp
base plate
substrate
led
metal base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201390000061.7U
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Chinese (zh)
Inventor
中村康一
高桥健治
松本雅人
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Filing date
Publication date
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2111/00—Light sources of a form not covered by groups F21Y2101/00-F21Y2107/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

The utility model discloses a light and a lighting device which are capable of enabling the installation of a substrate and an LED (Light Emitting Diode) module to be simple and have excellent heat dissipation performance. The light (1) is provided with a base-plate (a metal base-plate 30), a substrate (11), a plurality of LED elements (12), a transmitting cover (20) and a TIM (Thermal Interface Material) (40), wherein the substrate (11) is configured on the substrate, the LED elements (12) are arranged on the substrate (11), the transmitting cover (20) covers the plurality of LED elements (12) and is fixed on the base-plate, and the base-plate and the substrate (11) are connected through the TIM (40).

Description

Lamp and lighting device
Technical field
The utility model relates to lamp and lighting device, for example, relate to the Straight lamp of the light-emitting components such as (LED:Light Emitting Diode) that has light emitting diode and possess the lighting device of this Straight lamp.
Background technology
LED, owing to having efficient and the life-span is long, therefore waits in expectation and can serve as the new light source in various lamps such as in the past known fluorescent lamp or incandescent lamp etc., has adopted the research and development of the lamp (LED lamp) of LED constantly to make progress.
Have as LED lamp, substitute the LED lamp (bulb-shaped LED lamp) of the bulb-shaped that possesses the lamp-bulb type fluorescent lamp of luminous tube or adopted the incandescent lamp of heater winding in glass bulb, or substitute LED lamp (Straight LED lamp) of the Straight at both ends with the straight-pipe fluorescent lamp of electrode coil etc.For example, bulb-shaped LED lamp is in the past disclosed in patent documentation 1.And, Straight LED lamp is in the past disclosed in patent documentation 2.
In LED lamp, adopt the LED module that multiple LED are installed on substrate.Can there is heat from LED self because of luminous in LED, thereby can cause the temperature rise of LED, and the light output of LED reduces, and causes lifetime.Therefore, be provided as the base plate that radiator plays a role in LED lamp, LED module is loaded in this base plate.
(prior art document)
(patent documentation)
Patent documentation 1 TOHKEMY 2006-313717 communique
Patent documentation 2 TOHKEMY 2009-043447 communiques
For example, the method for considering in Straight LED lamp is in the glass tube of elongated cylindrical, to configure the base plate being made up of the metal of elongate.In this case, on this base plate, load LED module.Or the structure that can consider as Straight LED lamp is that the framework of elongate is being split into two halves on its length direction.In this case, use outer surface is exposed to the outside cross section of lamp for omiting the elongate base plate of semicircle shape, on this base plate, load LED module, and cover the mode of LED module take the cross section of elongate as omiting the diffuser of semicircle arcuation, this diffuser is fixed on to described base plate.
In this Straight LED lamp, LED module is fixed on the base plate of elongate.For example, the method for considering is by the substrate of LED module being inserted in the guide rail (groove) arranging on base plate, thereby LED module to be fixed on to (sliding type) on base plate.And the method for also considering is, by by the substrate engagement of LED module at the engagement pawl being arranged on base plate, thereby LED module is fixed on to base plate (claw mode).
But, in the fixing means of sliding type and claw mode, there is the poor problem of operability.Especially in the fixing means of sliding type, because being inserts LED module from the end of the base plate of elongate, therefore also there will be the problem that need to guarantee larger working space.
Utility model content
The utility model is in order to solve the above problems, and object is to provide a kind of installation exercise that not only can make base plate and LED module to become simple but also has lamp and the lighting device of good thermal diffusivity.
In order to realize above-mentioned object, an embodiment of the related lamp of the utility model is to possess: base plate; Substrate, is configured on described base plate, and multiple light-emitting components are installed on described substrate; Diffuser, covers described multiple light-emitting component, and is fixed in described base plate; And thermal interfacial material, described base plate is engaged with described substrate.
And, can be also that an embodiment of the related lamp of the utility model is that described substrate comprises: metal backing, be formed on the insulating barrier on described metal backing and be formed on the metal wiring on described insulating barrier.
And, can be also that an embodiment of the related lamp of the utility model is that the resin that described insulating barrier is forms by polyimides.
And, can be also that an embodiment of the related lamp of the utility model is that the thickness of described insulating barrier is, below the thickness of described metal backing.
And, can be also, an embodiment of the related lamp of the utility model is, described base plate has the wall portion with the side butt of described substrate.
And, can be also that an embodiment of the related lamp of the utility model is that described base plate and described diffuser form the framework of elongated tubular.
And, can be also that an embodiment of the related lamp of the utility model is that described base plate is made up of metal.
And an embodiment of the related lighting device of the utility model is to possess above-described any lamp.
By the utility model, not only can make the operation that the substrate that light-emitting component is installed is assembled to base plate become simply, and can dispel the heat to the heat producing at light-emitting component expeditiously.
Accompanying drawing explanation
Fig. 1 is all perspective views of the related lamp of embodiment 1 of the present utility model and the enlarged drawing of a part.
Fig. 2 is the profile of the related lamp of embodiment 1 of the present utility model.
(a) of Fig. 3 is the perspective view of the LED module in the related lamp of embodiment 1 of the present utility model, and (b) of Fig. 3 is the profile of the LED element in this LED module.
(a) of Fig. 4 is the profile (profile in the time that the face vertical with tubular axis cuts off) of the related lamp of embodiment 1 of the present utility model, and (b) of Fig. 4 is a part of amplification profile that the detailed formation of the bonding part of LED module in this lamp and metal base plate is shown.
Fig. 5 is the profile (profile in the time that the face vertical with tubular axis cuts off) of the related lamp of the variation of embodiment 1 of the present utility model.
Fig. 6 is for the LED module of lamp related at embodiment 1 of the present utility model and the figure of the joint method of metal base plate are described.
(a) of Fig. 7 is the profile (profile in the time that the face vertical with tubular axis cuts off) of the related lamp of embodiment 2 of the present utility model, and (b) of Fig. 7 is a part of amplification profile that the detailed formation of the bonding part of LED module in this lamp and metal base plate is shown.
Fig. 8 is the general survey perspective view of the related lighting device of embodiment 3 of the present utility model.
The specific embodiment
Referring to accompanying drawing, the related lamp of embodiment of the present utility model and lighting device are described.And, below illustrated embodiment be a preferred concrete example of the present utility model.Therefore, the allocation position of shown numerical value, shape, material, inscape, inscape and connected mode are an example in the following embodiments, are not to limit purport of the present utility model.Therefore,, in the inscape of following embodiment, for the inscape of not recording in the independent claims of upper concept of the present utility model is shown, illustrate as inscape arbitrarily.
And each figure is ideograph, it is not rigorous diagram.And, in each figure, give identical symbol for identical component parts.And, in the present embodiment, using the tube axial direction of lamp (length direction) as X-direction, using with the orthogonal direction (short direction) of X-axis as Y direction, using with X-axis and the orthogonal direction of Y-axis as Z-direction.
(embodiment 1)
First, the related lamp 1 of embodiment 1 of the present utility model is described.And the related lamp 1 of present embodiment is the Straight LED lamp that substitutes straight-pipe fluorescent lamp in the past.And the structure of the related lamp 1 of present embodiment is that the framework of straight tube-like is for being separated into the Splittable of light transparent member and radiator (base plate).
[all formations of lamp]
Utilize Fig. 1 and Fig. 2 to describe all formations of the related lamp 1 of embodiment 1 of the present utility model.Fig. 1 is the perspective view of the related lamp of embodiment 1 of the present utility model, shows all outside drawings of lamp and the enlarged drawing that a part for this lamp is extracted.And Fig. 2 is the profile (by the profile in the XZ plane of tubular axis) of the related lamp of embodiment 1 of the present utility model.
As shown in Figure 1 and Figure 2, the related lamp 1 of present embodiment is the Straight LED lamp that substitutes the illumination light source of straight-pipe fluorescent lamp in the past.Lamp 1 possesses: send the LED module 10 of the light of regulation, the diffuser 20 that covers the elongate of LED module 10, the metal base plate 30 of elongate that is placed with LED module 10 and the thermal interfacial material (TIM:Thermal Interface Material) 40 that LED module 10 is engaged with metal base plate 30.
In the present embodiment, formed the framework (peripheral device) of elongated tubular by diffuser 20 and metal base plate 30., by diffuser 20 and metal base plate 30 are linked, thereby formed the framework at both ends with the tubulose of opening as peripheral components (inserting pipe).In the present embodiment, the outer contour in the cross section vertical with length direction of the framework in the time that diffuser 20 is engaged with metal base plate 30 is for circular.Both ends at the length direction (X-direction) of this framework are equipped with a pair of the first lamp holder 50 and the second lamp holder 60, and LED module 10 etc. is incorporated in framework.Lamp 1 is installed in the socket of ligthing paraphernalia by the first lamp holder 50 and the second lamp holder 60, and is supported by ligthing paraphernalia.
And, although diagram is not provided with for making the connector that the electric power that is supplied to LED module 10 passes through and making the luminous lamp circuit of LED module etc. in framework.And in the lamp 1 of present embodiment, the power supply mode of employing is, the one-sided power supply mode of only powering from the first lamp holder 50 for LED module 10., lamp 1 is only accepted the electric power from ligthing paraphernalia etc. from the first lamp holder 50.
Below each component parts of lamp 1 is elaborated.
[diffuser]
Diffuser 20 is the frameworks with light transmission.As shown in Figure 1 and Figure 2, diffuser 20 is constituted as and covers the metal base plate 30 that disposes LED module 10.Diffuser 20 in present embodiment is the light transparent member with the summary semicircle tubular of light transmission, is to omit semicircle arcuation perpendicular to the cross sectional shape on the face (YZ plane) of tubular axis (X-axis).Diffuser 20 is engaged in the stage portion of metal base plate 30 by the edge part of circumferential both sides, thereby is fixed on metal base plate.
Diffuser 20 is made up of translucent material, for example, can adopt the resin material such as propylene or polycarbonate to form.In the present embodiment, although diffuser 20 form with resin fluorescent tube, but also can adopt the translucent material beyond resin to form diffuser 20.
And, also can be formed with light diffusion part at diffuser 20, diffuser 20 is had for making the light diffusion function from the light diffusion of LED module 10.The light of emitting from LED module 10 accordingly, can be spread in the time seeing through diffuser 20.As light diffusion part, for example, form light diffusion layer or optical diffusion film etc. at inner surface or the outer surface of diffuser 20.Particularly, by the resin that contains the photodiffusion material such as silica or calcium carbonate (particulate) or Chinese white being coated in to inner surface or the outer surface of diffuser 20, form milky optical diffusion film.Light diffusion part as other has, at inside or the outer setting lens arrangement thing of diffuser 20 or form recess or protuberance at diffuser 20.For example, by inner surface or outer surface printed dot pattern at diffuser 20, a part for diffuser 20 is processed, thereby can make diffuser 20 there is light diffusion function.Or, adopt the resin material etc. that is dispersed photodiffusion material to form diffuser 20 itself, thereby make diffuser 20 there is light diffusion function (light diffusion part).
[metal base plate]
As shown in Figure 1 and Figure 2, metal base plate 30 is elongate parts, is covered by diffuser 20.The part not covered by diffuser 20 of metal base plate 30 is exposed in outside., metal base plate 30 forms the periphery of lamp 1 together with diffuser 20.
Metal base plate 30 is examples for base plate, plays a role as the radiator that the heat producing at LED module 10 is dispelled the heat.Therefore, a part for metal base plate 30 is constituted as the outside of exposing at lamp.And metal base plate 30 is as playing a role for loading the also mounting table of fixed L ED module 10.
Particularly, the inside portion in diffuser 20 1 sides of metal base plate 30 is divided into, and has the tabular mounting portion 31 of the mounting surface of mounting LED module 10.In the present embodiment, the mounting surface of the mounting portion 31 of metal base plate 30 is rectangle planes of elongate.
And, be equipped with the multiple fin 32 as radiating part at the Outboard Sections at the back side of the mounting surface as metal base plate 30.Fin 32 exposes the outside at lamp, is configured to be projected into from mounting portion 31 foreign side of lamp.Fin 32 has been formed multiple on the length direction along metal base plate 30.
And, at the both ends of the width of metal base plate 30, be equipped with the stage portion of the edge part of the circumferential both sides for engaging diffuser 20.Diffuser 20 is inserted into by diffuser 20 is alongst slided with metal base plate 30 together with metal base plate 30 is engaged in, or by diffuser 20 is embedded to be fastened togather from the top of metal base plate 30.
Metal base plate 30 is preferably made up of the high material of the pyroconductivities such as metal, is the extrded material being made up of aluminium in the present embodiment.And, also can substituted metal base plate 30 and can adopt the resin base plate being formed by the resin identical with metal base plate 30 shapes, or can adopt the base plate being formed by the material beyond metal or resin.In this case, preferably adopt the material that pyroconductivity is high, for example, in the situation that adopting resin, preferably adopt material originally as the high resin material of pyroconductivity, or adopt the resin material of the material that contains the high thermoconductivities such as metallic.
And the length of the Length Ratio diffuser 20 of metal base plate 30 is long.This is because resinous diffuser 20 cause larger than the thermal coefficient of expansion of metal metal base plate 30, therefore this part of the short thermal expansion difference of Length Ratio metal base plate 30 length of diffuser 20.
And diffuser 20 and metal base plate 30 also can be as required, and are bonded together by sticker.And, also can not adopt sticker, but on the length direction of metal base plate 30, guide-track groove is set, by inserting this guide-track groove by the end of the short direction of diffuser 20 or along the jut of the length direction setting of diffuser 20, thereby diffuser 20 and metal base plate 30 are fastened togather.
[LED module]
LED module 10 is loaded on metal base plate 30 by TIM material (thermal interfacial material) 40.And it can be one or more that quilt loads in the number of the LED module 10 of metal base plate 30.In the situation that adopting multiple LED module 10, multiple LED modules 10 are for example formed a line along the length direction of metal base plate 30.
At this, utilize Fig. 3 to describe the detailed formation of LED module 10.(a) of Fig. 3 is the perspective view of the LED module in the related lamp of embodiment 1 of the present utility model, and (b) of Fig. 3 is the profile of the LED element in this LED module.
As shown in Fig. 3 (a), LED module 10 is light emitting modules of surface mount (SMD:Surface Mount Device) type, possesses substrate 11 and is installed in multiple LED elements 12 of substrate 11.
Substrate 11 is the installation base plates for LED element 12 is installed.Substrate 11 in present embodiment is the substrates take metal as base material, possesses: metal backing 11a, be formed on insulating barrier 11b on metal backing 11a, be formed at metal wiring 11c on insulating barrier 11b, be formed on the protective layer 11d of part on insulating barrier 11b and that do not form metal wiring 11c by pattern.And, as the shape of substrate 11, for example, can adopt and on the length direction of metal base plate 30, be the rectangular-shaped of elongate.
Metal backing 11a is the substrate that becomes bottom.As the material of metal backing 11a, for example, can adopt the metal that the heat conductivity such as copper or aluminium is high.
Insulating barrier 11b is formed between metal backing 11a and metal wiring 11c, and metal backing 11a and metal wiring 11c are insulated.For example can adopt the resin of polyimides system as the material of insulating barrier 11b.
Metal wiring 11c is the conductive metal film being electrically connected for the LED element 12 to adjacent one another are, is formed as continuously linearity in the present embodiment with the length direction along substrate 11 on insulating barrier 11b.As the material of metal wiring 11c, for example, can adopt the high and metal that resistivity is low of the pyroconductivity such as copper, aluminium or silver.
Protective layer 11d is the second surperficial insulating barrier that is formed on substrate 11, is formed and can makes a part of electrode terminal 13 and metal wiring 11c expose.In metal wiring 11c, at least exposed with the part of LED element 12 conductings.
Both ends at the length direction of substrate 11 are provided with respectively electrode terminal 13.Electrode terminal 13 is external connection terminals, accepts for making the luminous direct current of LED element 12 from the outside of LED module 10.
LED element 12 is examples for light-emitting component, is installed in the surface on substrate 11.In the present embodiment, as shown in Fig. 3 (a), multiple LED elements 12 are configured to row along the length direction of substrate 11 with wire.
Each LED element 12 is light-emitting component LED of so-called SMD (surface mount) type, by chip and fluorophor is packed forms, as shown in Fig. 3 (b), the seal member 12c that possess packaging body (container) 12a, is housed in the LED chip 12b of packaging body 12a and LED chip 12b is sealed.LED element 12 in present embodiment is the White LED elements that send white light.
Packaging body 12a, by moulding such as white resin, possesses obconic recess (cavity).The medial surface of recess is inclined plane, is constituted as and can will reflexes to top from the light of LED chip 12b.
LED chip 12b is an example of semiconductor light-emitting elements, is installed in the recess of packaging body 12a.LED chip 12b is the bare chip that can send monochromatic visible ray, the bottom surface of the recess that is arranged on packaging body 12a that is stuck by die bonding material (chip attach material).For example can adopt the blue led chip that sends blue light in the time switching on as LED chip 12b.
Seal member 12c be contain as the fluorophor of optical wavelength conversion body containing fluorophor resin; can be the wavelength (colour switching) of regulation by the optical wavelength conversion from LED chip 12b, and by LED chip 12b is sealed to protect LED chip 12b.Seal member 12c is filled in the recess of packaging body 12a, till being sealing into the opening surface of this recess.As seal member 12c for example in the situation that LED chip 12b is blue led, in order to obtain white light, and adopt the yellow fluorophor particle that is by YAG (yttrium, aluminium garnet) be distributed to silicones containing fluorophor resin.Accordingly, yellow fluorophor particle is sent sodium yellow by the blue light excitation of blue led chip, by the sodium yellow that is energized and the blue light of blue led chip, and emits white light from seal member 12c.And, also can make seal member 12c contain the photodiffusion materials such as silica.
Like this, LED element 12 is configured.And although do not illustrate, LED element 12 has positive pole and two external connection terminals of negative pole, these external connection terminals are electrically connected with metal wiring 11c.And, in the present embodiment, although LED element 12 is installed into wire, be not limited by this.And in the present embodiment, the multiple LED elements 12 on substrate 11 are connected in series by metal wiring 11c, but can be to be also connected in parallel or the connected mode of series connection and parallel combination.
[TIM material]
As shown in Figure 1 and Figure 2, TIM material (thermal interfacial material) 40 is configured between LED module 10 and metal base plate 30.The mode that TIM material 40 is close to the back side of the face of a side and the substrate 11 of LED module 10 and being configured.More specifically, the face of a side of TIM material 40 is close on the metal backing 11a of substrate 11.And the face of the opposite side of TIM material 40 is close to the mounting surface of the mounting portion 31 of metal base plate 30.
TIM material 40 is to have flexible high-termal conductivity film.And the TIM material 40 in present embodiment has cohesive (adherence), be constituted as adhesion banded, bonding and bonding with metal base plate 30 with LED module 10.That is, TIM material 40 has the function that makes the bonding sticky material of LED module 10 (substrate 11) and metal base plate 30, and LED module 10 (substrate 11) is fit together by TIM material 40 with metal base plate 30.
And, because TIM material 40 has pliability, therefore can be out of shape along with the thermal deformation of the substrate of LED module 10 11 and metal base plate 30.For example, though metal base plate 30 because of thermal expansion reflex action, TIM material 40 also can be out of shape according to the reflex action shape of metal base plate 30.
And, in order to improve thermal conductivity, also can in TIM material 40, put into thermal conductivity filler.In this case, can obtain pyroconductivity is TIM material 40 more than 0.8W/mK.In the present embodiment, in TIM material 40, do not add thermal conductivity filler in order to pay attention to adherence, and adopt the TIM material 40 that pyroconductivity is 0.15W/mK.And can adopt pyroconductivity as TIM material 40 is 0.1 to 1.2W/mK material.
[the first lamp holder]
The first lamp holder 50 is the power supply lamp holders of powering for the LED element 12 to LED module 10.The first lamp holder 50 is also that outside (source power supply etc.) from lamp is accepted to be subject to electricity lamp holder for what make electric power that the LED element 12 of LED module 10 lights a lamp.
As shown in Figure 1, the first lamp holder 50 is configured to cover shape, to cover one end of length direction of the elongate framework being made up of diffuser 20 and metal base plate 30.The a pair of electrical prongs 52 that supplies that the first lamp holder 50 in present embodiment possesses the cap body 51 being made up of synthetic resin such as polybutylene terephthalates (PBT) and is made up of metal materials such as brass.
Cap body 51 is constituted as slightly round-ended cylinder shape.A pair of confession electrical prongs 52 is constituted as from the bottom of cap body 51 outstanding to foreign side.Are the pins of powering for LED element 12 is lit a lamp for electrical prongs 52, bring into play function as the electrical prongs that is subject to of accepting the electric power of regulation from external equipments such as ligthing paraphernalias.For example, by the first lamp holder 50 being assembled to the socket of ligthing paraphernalia, a pair of 52 of the electrical prongs that supply become the state from accepted electric power by the supply unit of interior plant ligthing paraphernalia.For example a pair of for electrical prongs 52 by this, direct current is fed into the lamp circuit in lamp.Lamp circuit carries out rectification etc. to the direct current being transfused to, and the needed voltage of output for LED element 12 is switched on.
And cap body 51 both can adopt the lamp holder of the Splittable of the formation that can resolve into upper and lower two halves (XY plane), can adopt again the lamp holder of the non-Splittable of not cutting apart.
[the second lamp holder]
The second lamp holder 60 is the non-powered lamp holders of using., the second lamp holder 60 is as playing a role for the installation portion that lamp 1 is installed to ligthing paraphernalia.
As shown in Figure 1, the second lamp holder 60 is constituted as and covers shape, to cover one end of length direction of the elongate framework that diffuser 20 and metal base plate 30 form.The second lamp holder 60 in present embodiment comprises: the cap body 61 being made up of the synthetic resin of PBT etc. and the non-powered pin 62 being made up of metal materials such as brass.
Cap body 61 is constituted as slightly round-ended cylinder shape.Non-powered pin 62 is constituted as from the bottom of cap body 61 outstanding to foreign side.
And, also can make the second lamp holder 60 there is ground wire function.In this case, non-powered pin 62 plays a role as earth pin, be connected, thereby metal base plate 30 can pass through ligthing paraphernalia ground connection by non-powered pin 62 with metal base plate 30 ground wires.And cap body 61 can adopt the lamp holder of the Splittable of the formation that can be broken down into upper and lower two halves (in XY plane), also can adopt the lamp holder of the non-Splittable of not cutting apart.
[junction surface of LED module and metal base plate]
Then, utilize Fig. 4 to describe the LED module 10 in the related lamp 1 of present embodiment and the detailed formation of the bonding part of metal base plate 30.(a) of Fig. 4 is the profile (profile when cutting off perpendicular to the face of tubular axis) of the related lamp of embodiment 1 of the present utility model, and (b) of Fig. 4 is the amplification profile of a part for the detailed formation of the bonding part of LED module in this lamp and metal base plate.And in Fig. 4 (a), each component parts of substrate 11 does not illustrate.
As Fig. 4 (a) and (b), metal base plate 30 is engaged by TIM material 40 with substrate 11.Substrate 11 in present embodiment is take copper as main substrate, comprising: the protective layer 11d of the metal backing 11a being made up of copper base, the insulating barrier 11b, the metal wiring 11c being made up of copper wiring that are made up of polyimides (pyroconductivity: 0.3W/mK), the white protective layer of conduct.
In the present embodiment; the thickness d MET of metal backing 11a (copper base) is 50 μ m; the thickness d INS of insulating barrier 11b (polyimides) is 20 μ m; the thickness d LIN of metal wiring 11c (copper wiring) is 35 μ m, and the thickness d RES of protective layer 11d (white protective layer) is 55 μ m.
Can be 10 μ m as the thickness of insulating barrier 11b.Like this, by adopting polyimides to be used as the material of insulating barrier 11b, thereby even if the thickness d INS of insulating barrier 11b (dINS≤dMET) below the thickness d MET of metal backing 11a also can guarantee the dielectric voltage withstand of substrate 11.And in the present embodiment, the area of metal backing 11a and insulating barrier 11b is identical.
The thermal resistance (thickness of insulating barrier is the situation of 10 μ m) with the substrate 11 of above this formation is 0.7km2/K.Accordingly, the heat energy occurring at LED element 12 is enough transmitted to metal base plate 30 by substrate 11 by efficiency well.
As previously discussed, by adopting polyimides to be used as insulating barrier 11b, thereby can make all thickness attenuation of substrate 11.For example, by the material of insulating barrier 11b is changed to polyimide resin from epoxy resin, thereby the thickness of insulating barrier 11b can be changed to 20 μ m from 80 μ m.The pyroconductivity of substrate 11, owing to being arranged by the pyroconductivity of insulating barrier 11b, is therefore passed through the thickness attenuation of this insulating barrier 11b, thereby can be made the thermal resistance of substrate 11 diminish.Accordingly, can expeditiously the heat producing at LED element 12 be rejected heat to metal base plate 30.
And, by making the thickness attenuation of insulating barrier 11b, thereby can make the thickness attenuation of substrate 11 entirety.Accordingly, substrate 11 can be configured to itself and there is pliability., can realize and there is the substrate that flexible metal is master.
Under this feelings, as shown in Figure 5, can adopt that to have flexible metal be that the substrate 11A of main substrate forms lamp 1A.Fig. 5 is the profile of the related lamp of the variation of embodiment 1 of the present utility model.
As shown in Figure 5, in the lamp 1A of this variation, employing has the metal base plate 30A that cross section that middle body is thick is leg-of-mutton mounting portion 31A, along the surface configuration of this metal base plate 30A, TIM material 40 and substrate 11A is configured to diffuser 20 outstanding bending.In this case, become LED element 12 and be installed in the state of the substrate 11A of inclination.Accordingly, can realize LED element 12 by the lamp of stereoscopic configurations.Consequently, can obtain the luminous intensity distribution angle larger than the lamp shown in Fig. 4.
And in the situation that insulating barrier 11b is epoxy resin, because epoxy resin is fragile material, therefore, in the time wanting to bend substrate 11, insulating barrier 11b also can split, thereby can not guarantee dielectric voltage withstand.That is, by insulating barrier 11b as in the substrate 11 of epoxy resin, can not be as shown in FIG. 5 so that the state of substrate 11 bendings is fixed on metal base plate 30A.
Then, utilize Fig. 6 to describe the joint method of LED module and metal base plate.Fig. 6 is the figure for method LED module being engaged with metal base plate at the related lamp of embodiment 1 of the present utility model is described.
First, the TIM material 40 of film-form is adhered to the back side of the substrate 11 of LED module 10.In this case, can prepare at the back side of LED module 10 (substrate 11) material that TIM material 40 is adhered in advance.Now, as shown in Figure 6, preferably stick diaphragm 41 at the face that exposes of TIM material 40.
And; prepare adhesion overleaf and have the LED module 10 of TIM material and the metal base plate 30 of mounting LED module 10 with diaphragm 41; as shown in Figure 6, peel off diaphragm 41 from TIM material 40, by the mounting surface of exposing face and be fitted in metal base plate 30 of TIM material 40.Accordingly, can make LED module 10 and metal base plate 30 connect airtight and fit together by the adhesion strength of TIM material 40.
In sum, by the related lamp of embodiment 1 of the present utility model, LED module 10 (substrate 11) is bonded together by TIM material 40 with metal base plate 30.Like this, due to the thermal resistance that can reduce between substrate 11 and metal base plate 30, thereby can obtain high heat dissipation characteristics.Therefore, can dispel the heat to the heat producing at LED element 12 expeditiously, therefore can realize the lamp that thermal diffusivity is high.
And because TIM material 40 has pliability, even therefore substrate 11 and metal base plate 30 thermal expansion distortion, TIM material 40 also can be along with this distortion generation strain.The impact that, the thermal deformation of substrate 11 and metal base plate 30 produces can be overcome by TIM material 40.For example, can suppress the reflex action that produces because of substrate 11 and the thermal expansion rate variance of metal base plate 30 etc.
And, in the present embodiment, be by the adhere adhesion system of LED module 10 (substrate 11) and metal base plate 30 of TIM material 40 due to what adopt, therefore, compared with sliding type or claw mode, can make LED module 10 and the fitting operation of metal base plate 30 become simple.And, by adopting adhesion system that LED module 10 (substrate 11) is engaged with metal base plate 30, even therefore in the situation that working space is narrow, also can carry out assembling lamp at narrow and small working space.
And in the present embodiment, as the substrate 11 of LED module 10, having adopted the metal take polyimide resin as insulating barrier 11b is main substrate.Like this, even if the thickness of substrate 11 becomes below current boundary, also can guarantee dielectric voltage withstand.,, due to substrate 11 attenuation that can make to be configured between LED element 12 and metal base plate 30, therefore can further expeditiously the heat producing at LED element 12 be rejected heat to metal base plate 30.And, be main substrate by making substrate 11 attenuation, therefore can realize to there is flexible metal, and can easily carry out stereoscopic configurations to LED element 12.Consequently, can be by luminous intensity distribution angle expansion etc. is adjusted the configuration of LED element 12, thus can carry out distribution controls.
(embodiment 2)
Then utilize Fig. 7 to describe the related lamp 1B of embodiment 2 of the present utility model.(a) of Fig. 7 is the profile (profile when cutting off perpendicular to the face of tubular axis) of the related lamp of embodiment 2 of the present utility model, and (b) of Fig. 7 is a part of amplification profile of the detailed formation of the bonding part of LED module in this lamp and metal base plate.And, in Fig. 7, give identical symbol for formation same with embodiment 1.And, in Fig. 7 (a), each component parts of substrate 11 is not shown.
As Fig. 7 (a) and (b), the difference of the related lamp 1 of the lamp 1B that present embodiment is related and embodiment 1 is that metal base plate 30 has wall portion 33.
Wall portion 33 is configured to, from mounting portion 31 to the outstanding protuberance of mounting surface vertical direction (Z-direction), be arranged in each of two ends of the short direction of metal base plate 30.And wall portion 33 is tabular, along the length direction of metal base plate 30 and be extended setting.Wall portion 33 in present embodiment is parts of metal base plate 30, when metal base plate 30 is carried out to extrusion modling and be formed.
The substrate 11 of LED module 10 is configured to be clamped by a pair of wall portion 33.The state that, substrate 11 connects with the side of this substrate 11 and the side of wall portion 33 and by being loaded in metal base plate 30.
In sum, by the related lamp 1B of present embodiment, owing to being provided with wall portion 33 at metal base plate 30, therefore can realize following action effect.
Generally speaking, in adhesion system LED module 10 and metal base plate 30 being fit together by adhesion (TIM material 40), in the case of depart from LED module 10 and the position of metal base plate 30, can not again fit to LED module 10 and metal base plate 30 simply.
In the present embodiment, owing to being provided with wall portion 33 at metal base plate 30, therefore in the time that LED module 10 (substrate 11) is loaded in metal base plate 30, wall portion 33 be owing to playing a role as the position limitation portion of LED module 10 (substrate 11), therefore can high precision ground LED module 10 be placed on to the position of the regulation of metal base plate 30.Accordingly, due to can not be between LED module 10 and metal base plate 30 the departing from of occurrence positions, therefore can make the lamp of the desirable light distribution characteristic with homogeneous.
And by present embodiment, the side of substrate 11 contacts with wall portion 33.That is, substrate 11 is not only with TIM material 40 and is contacted, and contacts with metal base plate 30.Accordingly, the heat producing at LED module 10 is not only via TIM material 40, and is directly transferred to metal base plate 30 via wall portion 33 from the side of substrate 11.Therefore, can further improve the thermal diffusivity of LED module 10.
And by present embodiment, tabular wall portion 33 is extended setting at the length direction along metal base plate 30.The shape of the upper end of part that accordingly, can make the light that blocks LED module 10 among wall portion 33 on tube axial direction (X-direction) becomes linearity.Accordingly, can be covered by wall portion 33 without exception from the light of LED module 10 linearity.The light that therefore, can make to emit from lamp 1B looks and better appearance therefore can make lamp 1B when luminous, become more attractive in appearance.In this case, by adjusting the height of wall portion 33, therefore can control the light distribution characteristic (luminous intensity distribution angle) of lamp 1B.
And, also can be provided in the present embodiment the guide-track groove that diffuser 20 is engaged with metal base plate 30.In this case, guide-track groove is arranged on wall portion 33.The mode that for example, can become the bottom surface of recess with the side in the outside of wall portion 33 forms guide-track groove.
(embodiment 3)
Then, utilize Fig. 8 to describe the related lighting device 2 of embodiment 3 of the present utility model.Fig. 8 is the general survey perspective view of the related lighting device of embodiment 3 of the present utility model.
As shown in Figure 8, the related lighting device 2 of embodiment of the present utility model is basis illumination, possesses lamp 1 and ligthing paraphernalia 100.
Lamp 1 is the related Straight LED lamp of embodiment 1, is used as the illumination light source of lighting device 2.And, in the present embodiment, as shown in Figure 8, adopt two lamps 1.And in the present embodiment, also can not adopt above-mentioned lamp 1A, 1B.
Ligthing paraphernalia 100 is electrically connected with Straight LED lamp 1, and possesses a pair of socket 110 that keeps this lamp 1 and the appliance body 120 that socket 110 is installed.Appliance body 120 for example forms by aluminium steel plate being carried out to punch process etc.And the inner surface of appliance body 120 becomes reflecting surface, can make the light sending from Straight LED lamp 1 reflex to the direction (for example below) of regulation.
The ligthing paraphernalia 100 with this formation is for example installed in ceiling etc. by fixer.And, also can be built-in for controlling circuit of lighting a lamp of lamp 1 etc. in ligthing paraphernalia 100.And, cap assembly also can be set and be used for covering lamp 1.
(other)
According to embodiment, the related lamp of the utility model and lighting device are illustrated above, the utility model is limit by above-mentioned embodiment not.
For example in the above-described embodiment, although adopt the one-sided power supply mode of only powering with the one-sided all LED in framework of the first lamp holder 50, but, the bilateral power supply mode of carrying out bidirectional power supply from the lamp holder of both sides also can be adopted.
And, in the above-described embodiment, although TIM material 40 and substrate 11 fixing be engaged by being formed on the adhesion coating of TIM material 40 fixing, but also can not form adhesion coating at TIM material 40, be fixed but form adhesion coating by the orlop at substrate 11.
And, in the above-described embodiment, although the first lamp holder 50 has adopted the L shaped lamp holder of the confession electrical prongs 52 with pair of L-shaped pin, but also can adopt G13 lamp holder.Equally, the second lamp holder 60 also can adopt G13 lamp holder.Like this, also can adopt a side among two lamp holders as a pin (1 pin), the opposing party is as the holder structure of 1 pin/2 pin of two pins (2 pin), can also adopt two lamp holders all as the holder structure of 2 pin/2 pins of two pins (2 pin).
And, in the above-described embodiment, accept direct current although the first lamp holder 50 is constituted as, but also can accept alternating current.And in the situation that the first lamp holder 50 is accepted alternating current, the lamp circuit that is built in lamp 1 comprises for alternating current being converted to galvanic circuit.
And, in the above-described embodiment, though adopted the LED module of the SMD type that LED element 12 is encapsulated as LED module 10, be not limited by this.For example, also can adopt multiple LED chips are directly installed on substrate 11, by the LED module of COB (Chip On Board: the chip on board) type multiple LED chips being encapsulated together containing fluorophor resin.
And, in the above-described embodiment, LED module 10 (LED element 12) although adopt be to emit forming of white light by blue led chip and yellow fluorophor, but be not limited by this.For example, also can adopt contain red-emitting phosphors and green-emitting phosphor containing fluorophor resin, by combining to emit white light with blue led.Or, emit the ultraviolet leds chip of the ultraviolet light shorter than the wavelength of blue LED chip by employing, with main by uv light induction blue emitting phophor particle, green-emitting phosphor particle and the red-emitting phosphors particle of emit blue light, red light and green light emit white light.
And, in the above-described embodiment, show for example LED as light-emitting component, but also can adopt EL element and other the solid-state light emitting element such as the semiconductor light-emitting elements such as semiconductor laser or organic EL (Electro Luminescence: electroluminescent) or inorganic EL.
And in the above-described embodiment, the Straight LED lamp that is exposed to outside structure take a part for metal base plate 30 is illustrated as example, but is not limited by this.The formation that for example also can adopt is, replaces diffuser 20 and adopts the light transmission framework (glass tube or plastic tube etc.) of elongated tubular, and metal base plate 30 is received in this light transmission framework.
And, though be illustrated as an example of Straight lamp example in the above-described embodiment, also can be applicable to bulb-shaped lamp or globe lamp.In this case, as long as the shape of the substrate 11 that LED element 12 is installed is formed according to the profile of lamp.
In addition, the embodiment obtaining by carrying out various distortion that each embodiment those skilled in the art can expect, and any combination of in the scope that does not depart from purport of the present utility model, inscape in each embodiment and function being carried out and the embodiment realized are all included in the utility model.
The utility model can utilize as the lamp that has adopted the light-emitting components such as LED, for example can be widely utilizes as Straight LED lamp and lighting device of possessing this Straight LED lamp etc.
symbol description
1,1A, 1B lamp
2 lighting devices
10 LED modules
11,11A substrate
11a metal backing
11b insulating barrier
11c metal wiring
11d protective layer
12 LED elements
12a packaging body
12b LED chip
12c seal member
13 electrode terminals
20 diffusers
30,30A metal base plate
31,31A mounting portion
32 fin
33 wall portions
40 TIM materials
41 diaphragms
50 first lamp holders
51,61 cap body
52 for electrical prongs
60 second lamp holders
62 non-powered pins
100 ligthing paraphernalias
110 sockets
120 appliance bodies

Claims (8)

1. a lamp, is characterized in that, possesses:
Base plate;
Substrate, is configured on described base plate,
Multiple light-emitting components, are installed on described substrate;
Diffuser, covers described multiple light-emitting component, and is fixed in described base plate; And
Thermal interfacial material, engages with described substrate described base plate.
2. lamp as claimed in claim 1, is characterized in that,
Described substrate comprises: metal backing, be formed on the insulating barrier on described metal backing and be formed on the metal wiring on described insulating barrier.
3. lamp as claimed in claim 2, is characterized in that,
The resin that described insulating barrier by polyimides is forms.
4. lamp as claimed in claim 3, is characterized in that,
The thickness of described insulating barrier is, below the thickness of described metal backing.
5. the lamp as described in any one of claim 1 to 4, is characterized in that,
Described base plate has the wall portion with the side butt of described substrate.
6. the lamp as described in any one of claim 1 to 4, is characterized in that,
Described base plate is made up of metal.
7. the lamp as described in any one of claim 1 to 4, is characterized in that,
Described base plate and described diffuser form the framework of elongated tubular.
8. a lighting device, is characterized in that, possesses the lamp described in any one of claim 1 to 7.
CN201390000061.7U 2012-08-21 2013-07-11 Light and lighting device Expired - Fee Related CN203615157U (en)

Applications Claiming Priority (3)

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JP2012182695 2012-08-21
JP2012-182695 2012-08-21
PCT/JP2013/004297 WO2014030289A1 (en) 2012-08-21 2013-07-11 Lamp and lighting device

Publications (1)

Publication Number Publication Date
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US10641435B2 (en) 2015-09-02 2020-05-05 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US10436394B2 (en) 2015-09-02 2019-10-08 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US10288272B2 (en) 2016-03-17 2019-05-14 Zhejiang Super Lighting Electric Appliance Co., Ltd Curved LED tubular lamp
US10408441B1 (en) 2016-03-17 2019-09-10 Zhejiang Super Lighting Electric Curved LED tubular lamp
US10619833B2 (en) 2016-03-17 2020-04-14 Zhejiang Super Lighting Electric Appliance Co., Ltd Curved LED tubular lamp
US11920743B2 (en) 2021-12-01 2024-03-05 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp

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