WO2013132566A1 - Lamp and illuminating apparatus - Google Patents

Lamp and illuminating apparatus Download PDF

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Publication number
WO2013132566A1
WO2013132566A1 PCT/JP2012/008222 JP2012008222W WO2013132566A1 WO 2013132566 A1 WO2013132566 A1 WO 2013132566A1 JP 2012008222 W JP2012008222 W JP 2012008222W WO 2013132566 A1 WO2013132566 A1 WO 2013132566A1
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WO
WIPO (PCT)
Prior art keywords
housing
base
substrate
light emitting
light
Prior art date
Application number
PCT/JP2012/008222
Other languages
French (fr)
Japanese (ja)
Inventor
次弘 松田
延吉 竹内
三貴　政弘
永井　秀男
隆在 植本
美都子 首藤
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to JP2013528462A priority Critical patent/JP5540157B2/en
Priority to CN201290001173.XU priority patent/CN204240087U/en
Publication of WO2013132566A1 publication Critical patent/WO2013132566A1/en

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Classifications

    • 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
    • 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
    • F21Y2113/00—Combination of light sources
    • 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]

Definitions

  • the present invention relates to a lamp and a lighting device using a light emitting element.
  • LEDs light emitting diodes
  • An LED lamp using such an LED is provided with an LED module (light emitting module), and by selecting and using the shape of the LED module appropriately, a straight tubular (straight tube type LED lamp) and a bulb-shaped Things (bulb-shaped LED lamps) have been proposed.
  • an LED module configured by arranging a plurality of LEDs on a substrate is used (see, for example, Patent Document 1).
  • an LED lamp having light distribution characteristics in all directions for extracting light in all directions is required.
  • the LED since the LED is mounted on one side of the substrate to configure the LED module, light can not be supplied to the side of the substrate on which the LED is not mounted, that is, the back side of the substrate. It is difficult to realize an LED lamp having light distribution characteristics of
  • the substrate is made of a translucent material, and the light of the LED is transmitted through the substrate to supply the light to the back side of the substrate. It is also conceivable to provide the light diffusing function to the inner surface of a casing such as a straight pipe, and diffuse and reflect the light of the LED on the inner surface of the casing to supply the light to the back side of the substrate.
  • a casing such as a straight pipe
  • diffuse and reflect the light of the LED on the inner surface of the casing to supply the light to the back side of the substrate.
  • a plurality of LED modules are held on the surface and a base bonded to the inner surface of the housing A configuration in which the base is provided on the back side of the substrate is generally used.
  • a lamp in order to achieve the above object, includes an elongated housing, a substrate, and a light emitting element mounted on the surface of the substrate, and provided inside the housing A light emitting module, a base for holding the light emitting module, at least a part of which is provided inside the housing, and combined with the housing, and in a plane perpendicular to the tube axis direction of the housing
  • the light emitting module has a light distribution angle greater than 180 degrees with the light emitting element as a center, and the entire portion of the base is located outside the light distribution angle.
  • the light emitting module has a light distribution angle larger than 180 degrees, light can be supplied to the side on which the light emitting element of the substrate is not provided, that is, the back side. Can be realized. Further, since the base on which the light emitting module is held is provided, the integration of the housing and the light emitting module is facilitated, and the assembly of the lamp can be simplified. At this time, since the base is located outside the light distribution angle of the light emitting module, the light traveling toward the back side of the substrate is not absorbed by the base. As a result, it is possible to realize a lamp that has light distribution characteristics in all directions and is easy to assemble.
  • the light distribution angle may be 280 degrees or more and 320 degrees or less.
  • the light distribution angle is 280 degrees or more and 320 degrees or less, light absorption (self-absorption) by the base can be suppressed, and the light distribution characteristic can be maximized.
  • the base may be provided to close an opening formed in a surface of the housing, and the surface of the base may be exposed to the outside of the housing at the opening.
  • the base functions as a case different from the long case, and part of the base is in contact with the outside air, so that the heat of the light emitting element can be efficiently dissipated.
  • the base it is possible to suppress the temperature rise of the light emitting element and extend its life, and to suppress the decrease of the light output of the light emitting element itself.
  • the opening is provided so as to extend from one end of the casing in the tube axis direction to the other end, and the base forms the opening of the casing.
  • the base may be integrated with the housing by sliding the base in the tube axis direction with both ends in the circumferential direction fitted to the base.
  • the base and the housing can be integrated by slidingly inserting the base into the housing, the assembly of the lamp can be further simplified.
  • the base has a flat plate whose both ends are fitted with both ends in the circumferential direction of the casing, and a surface is exposed to the outside of the casing at the opening, and the inside of the casing from the back of the flat plate And projecting at the top of which is joined to the back surface of the substrate.
  • the position of the light emitting module inside the housing can be changed by adjusting the height of the protrusion from the flat plate.
  • a good light distribution balance can be easily realized by, for example, aligning the central axes of the housing and the light emitting module.
  • the base includes a flat plate whose surface is joined to the inner surface of the housing, and a projecting portion which protrudes from the back surface of the flat plate toward the inside of the housing and whose top is joined to the rear surface of the substrate. You may have.
  • the position of the light emitting module inside the housing can be changed by adjusting the height of the protrusion from the flat plate.
  • a good light distribution balance can be easily realized by, for example, aligning the central axes of the housing and the light emitting module.
  • the assembly of the lamp can be further simplified.
  • the substrate may transmit light of the light emitting element.
  • the light of the light emitting element can be supplied to the back side of the substrate in the form of transmitted light, and the light distribution angle of the light emitting module can be expanded.
  • a reflecting surface may be formed on the inner surface of the housing to reflect the light of the light emitting element toward the inside of the housing.
  • the light of the light emitting element can be supplied to the back side of the substrate in the form of reflected light.
  • the base may be a heat sink made of metal.
  • the heat of the light emitting element can be efficiently dissipated through the heat dissipating member.
  • a lighting device includes the above lamp.
  • FIG. 1 is a perspective view showing an outline of a configuration of an LED lamp according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view of the LED lamp of the embodiment.
  • FIG. 3 is a perspective view of the LED module of the embodiment.
  • FIG. 4 is a cross-sectional view (a cross-sectional view along the line AA 'in FIG. 2) of the LED lamp of the embodiment.
  • FIG. 5 is a perspective view for explaining the method of manufacturing the LED lamp of the embodiment.
  • FIG. 6 is a perspective view showing the outline of the configuration of the LED lamp according to the second embodiment of the present invention.
  • FIG. 7 is a cross-sectional view (a cross-sectional view along the line AA 'in FIG. 6) of the LED lamp of the embodiment.
  • FIG. 8 is a cross-sectional view (a cross-sectional view along the line AA 'in FIG. 6) of a modification of the LED lamp of the embodiment.
  • FIG. 9 is a perspective view showing a configuration of a lighting device according to a third embodiment of the present invention.
  • FIG. 10 is a cross-sectional view of a modification of the casing of the LED lamp according to the embodiment of the present invention.
  • each drawing is a schematic view, and is not necessarily strictly illustrated. The dimensions of each component in each drawing may differ from the actual dimensions.
  • FIG. 1 is a perspective view showing an outline of a configuration of an LED lamp 100 according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view of the LED lamp 100 (the LED lamp 100 in a state in which the base 201 is removed).
  • FIG. 3 is a perspective view of the LED module 300.
  • the X, Y, and Z directions are orthogonal to one another. Also, in FIG. 3, the electrode terminals are not shown for simplification of the drawing.
  • the LED lamp 100 is a long lamp for general illumination that replaces the conventional straight tube fluorescent lamp, and has openings at both ends in the tube axis direction (X direction) of the long housing 203. And an opening 205 on the surface (extending in the tube axis direction) directed from one end of the case 203 in the tube axis direction to the other end (the opening in the tube axis direction), and an opening 205 on the surface of the case 203
  • a base 204 provided to close the opening and a base pin 202, and a base 201 provided so as to cover the openings at both ends in the tube axis direction of the housing 203;
  • a plurality of LED modules 300 provided.
  • a lighting circuit (not shown) for supplying power to the LED module 300 using one of the two caps 201 is installed inside or outside the LED lamp 100.
  • the lighting circuit can be configured by, for example, a rectifier circuit formed of a diode bridge using four Zener diodes.
  • the lighting circuit is installed inside the LED lamp 100, the lighting circuit is provided in one of the base 201, and the other base 201 is used only for mounting to the lighting fixture.
  • the casing 203 is a long circular tubular casing such as a glass tube or a plastic tube such as an acrylic tube or a polycarbonate tube, and is used, for example, for manufacturing a fluorescent lamp defined in JIS (Japanese Industrial Standard).
  • a straight pipe of the same dimensional standard as the straight pipe before sealing at both ends is used.
  • the tubular shape referred to in the present embodiment may have a pseudo tube shape even if it has a slit or the like in part and is separated.
  • the straight pipe for example, a pipe having a length of 1198 [mm], an outer diameter of 30 [mm] and a thickness of 0.7 [mm] is used.
  • the straight pipe is made of, for example, soda lime glass, and its glass composition is 70 to 72% of silica (SiO 2 ).
  • the outer surface, the inner surface, and the like of the housing 203 are diffused by applying silica, calcium carbonate, or the like as necessary.
  • the base 201 is appropriately selected in accordance with the lighting apparatus to which the LED lamp 100 is attached, and for example, a G-type base or the like is used.
  • the LED module 300 is a COB (Chip On Board) type light emitting module, and includes a substrate 301, and a phosphor-containing resin 302 and an LED 321 that constitute a light emitting unit.
  • the LED module 300 is a line (die bonding) in which a plurality of LEDs 321 are linearly mounted (one-dimensionally) in the longitudinal direction (X direction) of the substrate 301 by a die attach agent or the like on the surface of the substrate 301 It is a module.
  • the form of the LED module is not particularly limited, and in addition to the configuration (COB type) in which the LED mounted on the substrate as described above is directly sealed by resin, it is also in a resin or ceramic case. It may be an SMD (Surface Mount Device) type sealed with a light transmitting member such as a resin in a state where the LED is mounted in advance.
  • SMD Surface Mount Device
  • the substrate 301 is rectangular and elongated, and is, for example, a translucent alumina substrate, a ceramic substrate such as aluminum nitride, a resin substrate, a glass substrate, a metal base substrate, a flexible substrate, or the like.
  • the substrate 301 has translucency to transmit visible light from the light emitting portion, that is, white light from the phosphor-containing resin 302 including the light from the LED 321.
  • the substrate 301 has a size that can be disposed inside the housing 203, and has a width smaller than the inner diameter of the housing 203 (the length in the short direction (Y direction) orthogonal to the longitudinal direction of the substrate 301) and thickness And, the length in the longitudinal direction is shorter than the length in the tube axis direction of the housing 203, for example, the length in the longitudinal direction is 14 [cm] and the thickness is 1 [mm].
  • L1 and L2 are defined, for example, by the relational expression 10 ⁇ L1 / L2.
  • the plurality of LEDs 321 linearly arranged in a line on the surface of the substrate 301 are covered with a common single phosphor-containing resin 302.
  • the plurality of LEDs 321 covered with the common phosphor-containing resin 302 are connected in series by a wiring pattern, a wire, and the like formed on the surface of the substrate 301.
  • the LED 321 is a bare chip that emits monochromatic visible light, and is flip-chip mounted or wire-bonded to the substrate 301.
  • a blue LED chip that emits blue light is used as the LED 321.
  • a gallium nitride-based light emitting element or the like having a central wavelength of 440 nm to 470 nm formed of an InGaN based material can be used.
  • the phosphor-containing resin 302 has a substantially semicircular dome shape having a convex cross section upward, and is provided to extend linearly in the arrangement direction of the LEDs 321.
  • the phosphor-containing resin 302 is provided corresponding to the plurality of LEDs 321, and functions as a wavelength conversion layer for converting the wavelength of light from the corresponding LED 321 by emitting light from the corresponding LED 321 and emitting fluorescence. , Seal and protect the corresponding LED 321.
  • the phosphor-containing resin 302 is preferably made of a material with high thixotropy in order to easily form a dome shape.
  • the sealing member (wavelength conversion layer) for covering a LED chip is not limited to resin, For example, using transparent materials like glass for which chip sealing is known It may be formed.
  • the phosphor-containing resin 302 includes a light wavelength converter made of phosphor fine particles and the like.
  • the phosphor-containing resin 302 is configured by dispersing yellow phosphor fine particles as phosphor fine particles in a silicone resin in order to obtain white light.
  • the yellow phosphor particles YAG (yttrium-aluminum-garnet) -based phosphor materials, silicate-based phosphor materials and the like can be used.
  • the base 204 radiates the heat of the plurality of LED modules 300 to the outside of the LED lamp 100, and further, a metal plate type heat dissipating member such as a heat sink for fixing the positions of the plurality of LED modules 300 in the LED lamp 100.
  • a metal plate type heat dissipating member such as a heat sink for fixing the positions of the plurality of LED modules 300 in the LED lamp 100.
  • it is made of an aluminum alloy material.
  • the base 204 holds the plurality of LED modules 300, is provided inside the housing 203, and is combined with the housing 203. In the following description, although the base 204 and the housing 203 are described as being joined, the combination is not limited thereto.
  • the base 204 is provided to close the opening 205 formed in the surface of the housing 203, and at least a part of the surface of the base 204 is exposed to the outside of the housing 203 at the opening 205.
  • the base 204 is composed of a flat plate 310 and a protrusion 311, and is a member having a substantially T-shaped cross section perpendicular to the tube axis direction.
  • the base 204 has this substantially T-shaped cross section at each portion in the tube axis direction.
  • the surface of the flat plate 310 is exposed to the outside of the housing 203 at the opening 205 and functions as a part of the housing of the LED lamp 100 separately from the housing 203.
  • the housing 203 is provided with an opening 205 along the tube axis direction so as to extend from one end to the other end, and both ends of the flat plate 310 are the openings 205 of the housing 203. And the both end parts of the circumferential direction of the housing
  • recesses 313 and 314 are provided on the end surfaces of both ends of the flat plate 310 in the direction (Y direction) orthogonal to the tube axis direction, and the recesses 313 and 314 It is fitted with both end portions in the circumferential direction forming the opening 205 of the body 203. Accordingly, the width of the recesses 313 and 314 is formed to be substantially equal to the thickness of the housing 203. With the recesses 313 and 314 and the housing 203 fitted, the end surfaces of both ends in the circumferential direction forming the opening 205 of the housing 203 are in contact with the bottom surfaces of the recesses 313 and 314.
  • the protrusion 311 protrudes from the back surface of the flat plate 310 toward the inside of the housing 203, and the top is joined to the back surface of the substrate 301 of the LED module 300.
  • the top surface of the projecting portion 311 is joined to the back surface of the substrate 301 by a heat conductive adhesive member or the like, and the base 204 and the flat plate 310 are integrated via the projecting portion 311.
  • FIG. 4 is a cross-sectional view (a cross-sectional view along the line AA 'in FIG. 2) of the LED lamp 100 according to the present embodiment.
  • the LED module 300 has a light distribution angle larger than 180 degrees (1/2 beam angle of light from the LED 321) centered on the LED 321 (center A in FIG. 4) have.
  • the light distribution angle is preferably 280 degrees or more and 320 degrees or less in order to maximize the light distribution characteristic. More preferably, the light distribution angle is 300 degrees or less, optimally 300 degrees. Thereby, the loss due to self-absorption (light absorption of the base 204 itself) can be reduced to improve the light emission efficiency.
  • the width of the flat plate 310 and the entire area of the base 204 that is, all the areas of the flat plate 310 and the projecting portion 311 are located outside the light distribution angle of the LED module 300.
  • the height of the protrusion 311 is set. That is, the width of the flat plate 310 is set such that the entire area of the base 204, that is, all the areas of the flat plate 310 and the projection 311 is located within the light distribution angle smaller than 180 degrees of the LED module 300, preferably 60 degrees. And the height of the protrusion part 311 is set.
  • the width of the flat plate 310 (the width in the Y direction) is equally divided into two by the projecting portion 311 in a plane perpendicular to the tube axis direction of the housing 203
  • the width of the flat plate 310 (the width in the Y direction) is d
  • the height (height in the Z direction) of the projecting portion 311 is h
  • the height of the protrusion 311 is set.
  • FIG. 5 is a perspective view for explaining the method of manufacturing the LED lamp 100 according to this embodiment, that is, the method of integrating the LED module 300, the housing 203, and the base 204.
  • the LEDs 321 and the phosphor-containing resin 302 are formed on the surface of the substrate 301 to form a plurality of LED modules 300, and then the tops of the protrusions 311 of the base 204 are bonded to the back surfaces of the plurality of substrates 301 (see FIG. 5 (a). Thereby, the LED module 300 and the base 204 are integrated.
  • the base 204 is inserted from the end in the tube axis direction of the housing 203 (FIG. 5 (b)). Then, the base 204 is slid in the direction of the tube axis in a state in which both ends in the circumferential direction of the housing 203 forming the opening 205 of the housing 203 and the base 204 are fitted (FIG. 5 (c)) . Thereby, the housing 203 and the base 204 are integrated.
  • the LED lamp 100 of the present embodiment since the LED module 300 has a light distribution angle larger than 180 degrees, light is supplied to the side of the substrate 301 where the LED 321 is not provided, that is, the back side. It is possible to realize a lamp with light distribution characteristics in all directions. Further, the base 204 facilitates the integration of the housing 203 and the LED module 300, and the assembly of the LED lamp 100 can be simplified. At this time, since the base 204 is located outside the light distribution angle of the LED lamp 100, the light directed to the back side of the substrate 301 is not absorbed by the base 204. As a result, it is possible to realize the LED lamp 100 having light distribution characteristics in all directions and being easy to assemble.
  • the LED lamp 100 of the present embodiment since a part of the base 204 is in contact with the outside air, the heat of the LED 321 can be efficiently dissipated. As a result, the temperature rise of the LED 321 can be suppressed and the life thereof can be extended, and the decrease of the light output of the LED 321 itself can be suppressed.
  • the base 204 and the housing 203 can be integrated by slidingly inserting the base 204 into the housing 203, so the assembly of the LED lamp 100 is simplified.
  • FIG. 6 is a perspective view showing an outline of the configuration of the LED lamp 110 according to the first embodiment of the present invention.
  • FIG. 7 is a cross-sectional view (a cross-sectional view taken along the line AA ′ of FIG. 6) of the LED lamp 110 according to the present embodiment.
  • the X, Y, and Z directions are orthogonal to one another.
  • the LED lamp 110 of this embodiment differs from the LED lamp 100 of the first embodiment in that the base 404 is provided inside the housing 203 without being exposed to the outside of the housing 203.
  • the LED lamp 110 includes a housing 203, a base 404 provided inside the housing 203, a base 201, and a plurality of LED modules 300.
  • the base 404 dissipates the heat of the plurality of LED modules 300 to the outside of the LED lamp 100, and further, a metal plate type radiator such as a heat sink for fixing the positions of the plurality of LED modules 300 in the LED lamp 100.
  • a metal plate type radiator such as a heat sink for fixing the positions of the plurality of LED modules 300 in the LED lamp 100.
  • it is made of an aluminum alloy material.
  • the base 404 holds the plurality of LED modules 300 and is joined to the inner surface of the housing 203 by a heat conductive adhesive member or the like.
  • the base 404 is a member having a flat plate 410 whose surface is joined to the inner surface of the housing 203 and a projecting portion 411, and is a member having a substantially T-shaped cross section perpendicular to the tube axis direction.
  • the base 404 has this substantially T-shaped cross section at each portion in the tube axis direction.
  • the flat plate 410 is a curved surface having the same curvature as that of the inner surface of the tube so that the entire surface of the flat surface 410 is in close contact with the inner surface of the housing 203.
  • the surface of the flat plate 410 has an arc shape with a curvature of half the length of the inner diameter of the housing 203, and has, for example, a maximum thickness of 1.2 [mm].
  • the protrusion 411 protrudes from the back surface of the flat plate 410 toward the inside of the housing 203, and the top is joined to the back surface of the substrate 301 of the LED module 300.
  • the top surface of the projecting portion 411 is joined to the back surface of the substrate 301 by a heat conductive adhesive member or the like, and the base 404 and the flat plate 310 are integrated via the projecting portion 411.
  • the width of the flat plate 410 is set such that all portions of the base 404, that is, all portions of the flat plate 410 and the projecting portion 411 are located outside the light distribution angle of the LED module 300
  • the width in the Y direction) and the height (height in the Z direction) of the protrusion 411 are set.
  • the tops of the protrusions 411 of the base 404 are joined to the back surfaces of the plurality of substrates 301, and the base 404 and the LED modules 300 Are integrated. Then, the base 404 is inserted from the end of the casing 203 in the tube axis direction, and the entire surface of the flat plate 410 is joined to the inner surface of the casing 203, whereby the base 404 and the casing 203 are integrated.
  • the LED lamp 110 of the present embodiment the LED lamp 110 having light distribution characteristics in all directions and easy to assemble can be realized for the same reason as that of the first embodiment.
  • the surface of the flat plate 410 of the base 404 is in close contact with the inner surface of the housing 203.
  • the present invention is not limited thereto as long as the inner surface of the housing 203 and the flat plate 410 of the base 404 can be joined.
  • the flat plate 410 of the base 404 may be joined to the inner surface of the housing 203 in line contact.
  • FIG. 9 is a perspective view showing a configuration of a lighting device according to a third embodiment of the present invention.
  • the lighting device 600 includes the LED lamp 400 and the lighting fixture 700 according to the first embodiment or the second embodiment.
  • the lighting fixture 700 includes a pair of sockets 701 electrically connected to the LED lamp 400 and holding the LED lamp 400, and a fixture body 703 to which the socket 701 is attached.
  • the inner surface 703a of the instrument body 703 is a reflective surface that reflects the light emitted from the LED lamp 400 in a predetermined direction (for example, the lower side).
  • the lighting fixture 700 is mounted on a ceiling or the like via a fixture.
  • the plurality of LEDs 321 on the substrate 301 of the LED module 300 are collectively sealed by the common phosphor-containing resin 302.
  • each of the plurality of LEDs 321 may be individually sealed by another phosphor-containing resin 302.
  • the LED is exemplified as the light emitting element, but it may be a semiconductor light emitting element such as a semiconductor laser, or a solid light emitting element such as organic EL (Electro Luminescence) or inorganic EL.
  • a semiconductor light emitting element such as a semiconductor laser
  • a solid light emitting element such as organic EL (Electro Luminescence) or inorganic EL.
  • the single-sided feed type lamp supplied with power from one of the caps 201 of the housing 203 has been described, but it may be a double-sided power supply type supplied with power from both ends of the housing 203.
  • casing 203 presupposed that it is circular tubular shape, if it is a tubular shape, it will not be restricted to this.
  • the substrate 301 may be a polygonal substrate other than a quadrangular (rectangular) cross-sectional shape. That is, the substrate 301 may be a triangular prism, a pentagonal prism, a hexagonal prism, or the like.
  • the substrate 301 has translucency.
  • the substrate 301 may not have translucency. For example, it can be realized by narrowing the width of the substrate 301 (the width in the Y direction).
  • the inner surface of the housing 203 may have an optical function with respect to the light emitted from the LED module 300 in order to supply a large amount of light to the back surface side of the substrate 301.
  • an optical function for example, as shown in FIG. 10, the inner surface of the housing 203 is processed into a shape capable of condensing and diffusing light (for example, a shape having unevenness), and the light of the LED 321 is formed on the inner surface of the housing 203.
  • the processing of the shape shown in FIG. 10 may be applied to the entire inner surface of the housing 203 or may be applied to the outer surface of the housing 203.
  • the present invention can be used for a lamp using a light emitting element such as an LED, in particular, an LED lamp as an alternative illumination of a straight tubular fluorescent lamp, an illumination apparatus including the same, and the like.
  • a light emitting element such as an LED
  • an LED lamp as an alternative illumination of a straight tubular fluorescent lamp, an illumination apparatus including the same, and the like.
  • LED lamp 201 base 202 base connector 203 housing 204, 404 base 205 opening 300
  • LED module 301 substrate 302 phosphor-containing resin 310, 410 flat plate 311, 411 protrusion 313, 314 recess 321 LED 600 lighting apparatus 700 lighting apparatus 701 socket 703 apparatus main body 703a inner surface

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

This lamp is provided with: a long housing (203); an LED module (300), which has a substrate (301) and LEDs (321) mounted on the surface of the substrate (301), and which is provided inside of the housing (203); and a base (204), which holds the LED module (300), has at least a part thereof provided in the housing (203), and is bonded to the housing (203). On a plane perpendicular to the tube axis direction of the housing (203), the LED module (300) has a light distribution angle larger than 180 degrees with the LEDs (321) at the center, and all the parts of the base (204) are positioned outside of the light distribution angle.

Description

ランプ及び照明装置Lamp and lighting device
　本発明は、発光素子を用いたランプ及び照明装置に関する。 The present invention relates to a lamp and a lighting device using a light emitting element.
　近年、発光ダイオード（ＬＥＤ：Ｌｉｇｈｔ　Ｅｍｉｔｔｉｎｇ　Ｄｉｏｄｅ）等の半導体発光素子は、高効率で省スペースな光源として、各種ランプに使用されている。 BACKGROUND In recent years, semiconductor light emitting devices such as light emitting diodes (LEDs) have been used for various lamps as highly efficient and space-saving light sources.
　このようなＬＥＤを用いたＬＥＤランプはＬＥＤモジュール（発光モジュール）を備えており、ＬＥＤモジュールの形状を適宜選択して使用することにより、直管状のもの（直管型ＬＥＤランプ）及び電球状のもの（電球型ＬＥＤランプ）が提案されている。いずれのランプにおいても複数個のＬＥＤが基板上に配列されて構成されるＬＥＤモジュールが用いられる（例えば特許文献１参照）。 An LED lamp using such an LED is provided with an LED module (light emitting module), and by selecting and using the shape of the LED module appropriately, a straight tubular (straight tube type LED lamp) and a bulb-shaped Things (bulb-shaped LED lamps) have been proposed. In any of the lamps, an LED module configured by arranging a plurality of LEDs on a substrate is used (see, for example, Patent Document 1).
特開２００９－４３４４７号公報JP, 2009-43447, A
　ところで、ＬＥＤランプでは、全方位に光を取り出す全方位の配光特性を持つＬＥＤランプが求められている。しかしながら、従来のＬＥＤランプでは、基板の片面にＬＥＤを実装してＬＥＤモジュールを構成するため、基板のＬＥＤが実装されていない面側つまり基板の裏側に光を供給することができず、全方位の配光特性を持つＬＥＤランプを実現することは困難である。 By the way, in the LED lamp, an LED lamp having light distribution characteristics in all directions for extracting light in all directions is required. However, in the conventional LED lamp, since the LED is mounted on one side of the substrate to configure the LED module, light can not be supplied to the side of the substrate on which the LED is not mounted, that is, the back side of the substrate. It is difficult to realize an LED lamp having light distribution characteristics of
　ここで、基板を透光性のあるもので構成し、ＬＥＤの光を基板で透過させて基板の裏側に光を供給することが考えられる。また、直管等の筐体の内面に光拡散機能を持たせ、ＬＥＤの光を筐体の内面で拡散反射させて基板の裏側に光を供給することも考えられる。しかしながら、ＬＥＤランプでは、筐体内へのＬＥＤモジュールの配設を容易にし、またＬＥＤの熱を効率的に放熱するため、表面に複数のＬＥＤモジュールが保持され、筐体の内面に接合される基台を基板の裏側に設けるという構成が汎用されている。このような構成では、基板を透過、又は筐体の内面で拡散反射してＬＥＤモジュールから基台に向かう光の多くが基台で吸収されるため、全方位に光を取り出す全方位の配光特性を持つＬＥＤランプを実現することが困難である。 Here, it is conceivable that the substrate is made of a translucent material, and the light of the LED is transmitted through the substrate to supply the light to the back side of the substrate. It is also conceivable to provide the light diffusing function to the inner surface of a casing such as a straight pipe, and diffuse and reflect the light of the LED on the inner surface of the casing to supply the light to the back side of the substrate. However, in the case of the LED lamp, in order to facilitate the arrangement of the LED module in the housing and to efficiently dissipate the heat of the LED, a plurality of LED modules are held on the surface and a base bonded to the inner surface of the housing A configuration in which the base is provided on the back side of the substrate is generally used. In such a configuration, most of the light transmitted through the substrate or diffusely reflected on the inner surface of the housing and directed from the LED module to the base is absorbed by the base, so light distribution in all directions for extracting light in all directions It is difficult to realize an LED lamp with characteristics.
　これに対し、基台を設けることなく、ＬＥＤモジュールを直接筐体の内面に接合する構成では、このような問題は生じないが、複数のＬＥＤモジュールを１つ１つ筐体の内面に接合させる必要が生じ、ＬＥＤランプの組み立てが複雑化する。また、筐体とＬＥＤモジュールとの中心軸を揃えるなどして良好な配光バランスを実現しながら、筐体に対してＬＥＤモジュールを固定することが困難である。 On the other hand, in the configuration in which the LED module is directly bonded to the inner surface of the housing without providing a base, such a problem does not occur, but a plurality of LED modules are bonded one by one to the inner surface of the housing Needs, which complicates the assembly of the LED lamp. In addition, it is difficult to fix the LED module to the housing while achieving a good light distribution balance by, for example, aligning the central axes of the housing and the LED module.
　そこで、本発明は、かかる問題点に鑑み、全方位の配光特性を持ち、かつ組み立てが容易なランプ及び照明装置を提供することを目的とする。 Therefore, in view of such problems, it is an object of the present invention to provide a lamp and a lighting device having light distribution characteristics in all directions and being easy to assemble.
　上記目的を達成するために、本発明の一態様に係るランプは、長尺状の筐体と、基板および前記基板の表面に実装された発光素子を有し、前記筐体の内部に設けられた発光モジュールと、前記発光モジュールを保持し、少なくとも一部が前記筐体の内部に設けられ、前記筐体と組み合わされた基台とを備え、前記筐体の管軸方向と垂直な面において、前記発光モジュールは前記発光素子を中心とした１８０度より大きい配光角を有し、前記基台の全部位は前記配光角の外側に位置することを特徴とする。 In order to achieve the above object, a lamp according to one aspect of the present invention includes an elongated housing, a substrate, and a light emitting element mounted on the surface of the substrate, and provided inside the housing A light emitting module, a base for holding the light emitting module, at least a part of which is provided inside the housing, and combined with the housing, and in a plane perpendicular to the tube axis direction of the housing The light emitting module has a light distribution angle greater than 180 degrees with the light emitting element as a center, and the entire portion of the base is located outside the light distribution angle.
　本態様によれば、発光モジュールは１８０度より大きい配光角を有するため、基板の発光素子が設けられていない側つまり裏面側に光を供給することができ、全方位の配光特性のランプを実現できる。また、発光モジュールが保持される基台が設けられるため、筐体と発光モジュールとの一体化が容易になり、ランプの組み立てを簡素化できる。このとき、基台は発光モジュールの配光角の外側に位置するため、基板の裏面側に向かう光は基台により吸収されない。その結果、全方位の配光特性を持ち、かつ組み立てが容易なランプを実現できる。 According to this aspect, since the light emitting module has a light distribution angle larger than 180 degrees, light can be supplied to the side on which the light emitting element of the substrate is not provided, that is, the back side. Can be realized. Further, since the base on which the light emitting module is held is provided, the integration of the housing and the light emitting module is facilitated, and the assembly of the lamp can be simplified. At this time, since the base is located outside the light distribution angle of the light emitting module, the light traveling toward the back side of the substrate is not absorbed by the base. As a result, it is possible to realize a lamp that has light distribution characteristics in all directions and is easy to assemble.
　ここで、前記配光角は、２８０度以上３２０度以下であってもよい。 Here, the light distribution angle may be 280 degrees or more and 320 degrees or less.
　本態様によれば、配光角は２８０度以上３２０度以下であるため、基台による光吸収（自己吸収）を抑え、配光特性を最大にすることができる。 According to this aspect, since the light distribution angle is 280 degrees or more and 320 degrees or less, light absorption (self-absorption) by the base can be suppressed, and the light distribution characteristic can be maximized.
　また、前記基台は、前記筐体の表面に形成された開口部を塞ぐように設けられ、前記基台の表面は、前記開口で前記筐体の外側に露出してもよい。 The base may be provided to close an opening formed in a surface of the housing, and the surface of the base may be exposed to the outside of the housing at the opening.
　本態様によれば、長尺状の筐体とは別の筐体として基台が機能し、基台の一部が外気と接するため、発光素子の熱を効率的に放熱することができる。その結果、発光素子の温度上昇を抑えてその寿命を長くできると共に、発光素子自身の光出力の低下を抑えることができる。 According to this aspect, the base functions as a case different from the long case, and part of the base is in contact with the outside air, so that the heat of the light emitting element can be efficiently dissipated. As a result, it is possible to suppress the temperature rise of the light emitting element and extend its life, and to suppress the decrease of the light output of the light emitting element itself.
　また、前記開口は、前記筐体の管軸方向の一方の端部から他方の端部に向かって延びるように設けられており、前記基台は、前記筐体の開口を形成する前記筐体の周方向の両端部と前記基台とを嵌合させた状態で前記基台を前記管軸方向にスライドさせることで前記筐体と一体化されてもよい。 Further, the opening is provided so as to extend from one end of the casing in the tube axis direction to the other end, and the base forms the opening of the casing. The base may be integrated with the housing by sliding the base in the tube axis direction with both ends in the circumferential direction fitted to the base.
　本態様によれば、基台を筐体に対してスライド挿入することで、基台と筐体とを一体化できるため、ランプの組み立てを更に簡素化できる。 According to this aspect, since the base and the housing can be integrated by slidingly inserting the base into the housing, the assembly of the lamp can be further simplified.
　また、前記基台は、両端部が前記筐体の周方向の両端部と嵌合し、表面が前記開口で前記筐体の外側に露出する平板と、前記平板の裏面から前記筐体の内部に向けて突出し、頂部が前記基板の裏面と接合された突出部とを有してもよい。 Further, the base has a flat plate whose both ends are fitted with both ends in the circumferential direction of the casing, and a surface is exposed to the outside of the casing at the opening, and the inside of the casing from the back of the flat plate And projecting at the top of which is joined to the back surface of the substrate.
　本態様によれば、筐体内部における発光モジュールの位置を平板からの突出部の高さを調整することで変更できる。その結果、筐体と発光モジュールとの中心軸を揃えるなどして容易に良好な配光バランスを実現できる。 According to this aspect, the position of the light emitting module inside the housing can be changed by adjusting the height of the protrusion from the flat plate. As a result, a good light distribution balance can be easily realized by, for example, aligning the central axes of the housing and the light emitting module.
　また、前記基台は、表面が前記筐体の内面と接合された平板と、前記平板の裏面から前記筐体の内部に向けて突出し、頂部が前記基板の裏面と接合された突出部とを有してもよい。 Further, the base includes a flat plate whose surface is joined to the inner surface of the housing, and a projecting portion which protrudes from the back surface of the flat plate toward the inside of the housing and whose top is joined to the rear surface of the substrate. You may have.
　本態様によれば、筐体内部における発光モジュールの位置を平板からの突出部の高さを調整することで変更できる。その結果、筐体と発光モジュールとの中心軸を揃えるなどして容易に良好な配光バランスを実現できる。このとき、筐体に開口等を形成することなく一般的な管状の筐体をそのまま利用することができるので、ランプの組み立てを更に簡素化できる。 According to this aspect, the position of the light emitting module inside the housing can be changed by adjusting the height of the protrusion from the flat plate. As a result, a good light distribution balance can be easily realized by, for example, aligning the central axes of the housing and the light emitting module. At this time, since a general tubular housing can be used as it is without forming an opening or the like in the housing, the assembly of the lamp can be further simplified.
　また、前記基板は、前記発光素子の光を透過させてもよい。 Further, the substrate may transmit light of the light emitting element.
　本態様によれば、発光素子の光を透過光という形で基板の裏面側に供給することができ、発光モジュールの配光角を広げることができる。 According to this aspect, the light of the light emitting element can be supplied to the back side of the substrate in the form of transmitted light, and the light distribution angle of the light emitting module can be expanded.
　また、前記筐体の内面には、前記発光素子の光を前記筐体の内部に向けて反射する反射面が形成されていてもよい。 In addition, a reflecting surface may be formed on the inner surface of the housing to reflect the light of the light emitting element toward the inside of the housing.
　本態様によれば、発光素子の光を反射光という形で基板の裏面側に供給することができる。 According to this aspect, the light of the light emitting element can be supplied to the back side of the substrate in the form of reflected light.
　また、前記基台は、金属から構成される放熱体であってもよい。 In addition, the base may be a heat sink made of metal.
　本態様によれば、放熱体を介して発光素子の熱を効率的に放熱することができる。 According to this aspect, the heat of the light emitting element can be efficiently dissipated through the heat dissipating member.
　また、本発明の一態様に係る照明装置は、上記ランプを備えることを特徴とする。 Further, a lighting device according to one aspect of the present invention includes the above lamp.
　本態様によれば、全方位の配光特性を持ち、かつ組み立てが容易な照明装置を実現できる。 According to this aspect, it is possible to realize a lighting device that has light distribution characteristics in all directions and that is easy to assemble.
　本発明によれば、全方位の配光特性を持ち、かつ組み立てが容易なランプ及び照明装置を実現することができる。 According to the present invention, it is possible to realize a lamp and a lighting device having light distribution characteristics in all directions and being easy to assemble.
図１は、本発明の第１の実施形態に係るＬＥＤランプの構成の概略を示す斜視図である。FIG. 1 is a perspective view showing an outline of a configuration of an LED lamp according to a first embodiment of the present invention. 図２は、同実施形態のＬＥＤランプの斜視図である。FIG. 2 is a perspective view of the LED lamp of the embodiment. 図３は、同実施形態のＬＥＤモジュールの斜視図である。FIG. 3 is a perspective view of the LED module of the embodiment. 図４は、同実施形態のＬＥＤランプの断面図（図２のＡＡ’線における断面図）である。FIG. 4 is a cross-sectional view (a cross-sectional view along the line AA 'in FIG. 2) of the LED lamp of the embodiment. 図５は、同実施形態のＬＥＤランプの製造方法を説明するための斜視図である。FIG. 5 is a perspective view for explaining the method of manufacturing the LED lamp of the embodiment. 図６は、本発明の第２の実施形態に係るＬＥＤランプの構成の概略を示す斜視図である。FIG. 6 is a perspective view showing the outline of the configuration of the LED lamp according to the second embodiment of the present invention. 図７は、同実施形態のＬＥＤランプの断面図（図６のＡＡ’線における断面図）である。FIG. 7 is a cross-sectional view (a cross-sectional view along the line AA 'in FIG. 6) of the LED lamp of the embodiment. 図８は、同実施形態のＬＥＤランプの変形例の断面図（図６のＡＡ’線における断面図）である。FIG. 8 is a cross-sectional view (a cross-sectional view along the line AA 'in FIG. 6) of a modification of the LED lamp of the embodiment. 図９は、本発明の第３の実施形態に係る照明装置の構成を示す斜視図である。FIG. 9 is a perspective view showing a configuration of a lighting device according to a third embodiment of the present invention. 図１０は、本発明の実施形態に係るＬＥＤランプの筐体の変形例の断面図である。FIG. 10 is a cross-sectional view of a modification of the casing of the LED lamp according to the embodiment of the present invention.
　以下、本発明の実施形態におけるランプおよび照明装置について、図面を参照しながら説明する。なお、以下に説明する実施形態は、いずれも本発明の好ましい一具体例を示すものである。したがって、以下の実施形態で示される、数値、形状、材料、構成要素、構成要素の配置位置及び接続形態、工程（ステップ）、工程の順序などは、一例であって本発明を限定する主旨ではない。よって、以下の実施形態における構成要素のうち、本発明の最上位概念を示す独立請求項に記載されていない構成要素については、任意の構成要素として説明される。 Hereinafter, a lamp and a lighting apparatus according to an embodiment of the present invention will be described with reference to the drawings. The embodiments described below each show a preferable specific example of the present invention. Therefore, numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps (steps), order of steps, etc. shown in the following embodiments are merely examples, and the scope of the present invention is limited. Absent. Therefore, among the components in the following embodiments, components which are not described in the independent claim showing the highest concept of the present invention are described as arbitrary components.
　なお、図面において、実質的に同一の構成、動作、および効果を表す要素については、同一の符号を付す。また、各図は、模式図であり、必ずしも厳密に図示されたものではなく、各図における各構成要素の寸法は、実際の寸法と異なる場合がある。 In the drawings, elements substantially representing the same configuration, operation, and effect are denoted by the same reference numerals. Further, each drawing is a schematic view, and is not necessarily strictly illustrated. The dimensions of each component in each drawing may differ from the actual dimensions.
　（第１の実施形態）
　図１は、本発明の第１の実施形態に係るＬＥＤランプ１００の構成の概略を示す斜視図である。図２は、ＬＥＤランプ１００（口金２０１が外された状態におけるＬＥＤランプ１００）の斜視図である。図３は、ＬＥＤモジュール３００の斜視図である。なお、図１において、Ｘ、Ｙ、Ｚ方向の各々は、互いに直交する。また、図３には、図の簡略化のために、電極端子は示されていない。 First Embodiment
FIG. 1 is a perspective view showing an outline of a configuration of an LED lamp 100 according to a first embodiment of the present invention. FIG. 2 is a perspective view of the LED lamp 100 (the LED lamp 100 in a state in which the base 201 is removed). FIG. 3 is a perspective view of the LED module 300. In FIG. 1, the X, Y, and Z directions are orthogonal to one another. Also, in FIG. 3, the electrode terminals are not shown for simplification of the drawing.
　このＬＥＤランプ１００は、従来の直管形蛍光灯に代替する一般照明用の長尺状のランプであり、長尺状の筐体２０３の管軸方向（Ｘ方向）の両端に開口部を有し、かつ筐体２０３の管軸方向の一方の端部から他方の端部に向かう（管軸方向に延びる）開口部２０５を表面に有する筐体２０３と、筐体２０３の表面の開口部２０５を塞ぐように設けられた基台２０４と、口金ピン２０２を有し、筐体２０３の管軸方向の両端部の開口を覆うように設けられた口金２０１と、光源として筐体２０３の内部に設けられた複数のＬＥＤモジュール３００とを備える。 The LED lamp 100 is a long lamp for general illumination that replaces the conventional straight tube fluorescent lamp, and has openings at both ends in the tube axis direction (X direction) of the long housing 203. And an opening 205 on the surface (extending in the tube axis direction) directed from one end of the case 203 in the tube axis direction to the other end (the opening in the tube axis direction), and an opening 205 on the surface of the case 203 A base 204 provided to close the opening and a base pin 202, and a base 201 provided so as to cover the openings at both ends in the tube axis direction of the housing 203; And a plurality of LED modules 300 provided.
　ＬＥＤランプ１００の内部又は外部には、２つの口金２０１の一方を利用してＬＥＤモジュール３００に給電するための点灯回路（不図示）が設置される。点灯回路は、例えば、４個のツェナダイオードを用いたダイオードブリッジからなる整流回路で構成することができる。ＬＥＤランプ１００の内部に点灯回路が設置される場合、一方の口金２０１内に点灯回路が設けられ、他方の口金２０１は、照明器具に装着するためにのみ使用される。 A lighting circuit (not shown) for supplying power to the LED module 300 using one of the two caps 201 is installed inside or outside the LED lamp 100. The lighting circuit can be configured by, for example, a rectifier circuit formed of a diode bridge using four Zener diodes. When the lighting circuit is installed inside the LED lamp 100, the lighting circuit is provided in one of the base 201, and the other base 201 is used only for mounting to the lighting fixture.
　筐体２０３は、ガラス管、又は、アクリル管やポリカーボネート管等のプラスチック管等の長尺円管状の筐体であり、例えばＪＩＳ（日本工業規格）に規定されている蛍光灯の製造に用いられる両端封止前の直管と同じ寸法規格の直管が用いられる。本実施形態でいう管状とは、図２で示される筐体２０３のように、一部にスリットなどを有して離間していても、擬似的にチューブ状の形態であればよい。直管としては、例えば、長さ１１９８［ｍｍ］、外径３０［ｍｍ］、厚み０.７［ｍｍ］のものが用いられる。直管は、例えばソーダ石灰ガラスからなり、そのガラス組成についてシリカ（ＳｉＯ２）が７０～７２［％］のものである。なお、筐体２０３の外面及び内面等は、必要に応じて、シリカ及び炭酸カルシウムなどを塗布することにより拡散処理される。 The casing 203 is a long circular tubular casing such as a glass tube or a plastic tube such as an acrylic tube or a polycarbonate tube, and is used, for example, for manufacturing a fluorescent lamp defined in JIS (Japanese Industrial Standard). A straight pipe of the same dimensional standard as the straight pipe before sealing at both ends is used. As in the case of the housing 203 shown in FIG. 2, the tubular shape referred to in the present embodiment may have a pseudo tube shape even if it has a slit or the like in part and is separated. As the straight pipe, for example, a pipe having a length of 1198 [mm], an outer diameter of 30 [mm] and a thickness of 0.7 [mm] is used. The straight pipe is made of, for example, soda lime glass, and its glass composition is 70 to 72% of silica (SiO 2 ). The outer surface, the inner surface, and the like of the housing 203 are diffused by applying silica, calcium carbonate, or the like as necessary.
　口金２０１は、ＬＥＤランプ１００を装着する照明器具に合わせて適宜選択され、例えばＧ型口金等が用いられる。 The base 201 is appropriately selected in accordance with the lighting apparatus to which the LED lamp 100 is attached, and for example, a G-type base or the like is used.
　ＬＥＤモジュール３００は、ＣＯＢ（Ｃｈｉｐ　Ｏｎ　Ｂｏａｒｄ）型の発光モジュールであり、基板３０１、並びに発光部を構成する蛍光体含有樹脂３０２及びＬＥＤ３２１を備える。ＬＥＤモジュール３００は、基板３０１の表面に、複数のＬＥＤ３２１がダイアタッチ剤等によって基板３０１の長手方向（Ｘ方向）に一列に並んで直線状（一次元状）に実装（ダイボンディング）されたラインモジュールである。 The LED module 300 is a COB (Chip On Board) type light emitting module, and includes a substrate 301, and a phosphor-containing resin 302 and an LED 321 that constitute a light emitting unit. The LED module 300 is a line (die bonding) in which a plurality of LEDs 321 are linearly mounted (one-dimensionally) in the longitudinal direction (X direction) of the substrate 301 by a die attach agent or the like on the surface of the substrate 301 It is a module.
　ただし、ＬＥＤモジュールの形態は特に限定されず、上記のような基板に実装されたＬＥＤが樹脂によって直接的に封止された構成（ＣＯＢタイプ）のほかにも、樹脂またはセラミック製のケース内に予めＬＥＤが実装された状態で樹脂などの透光性部材によって封止されたＳＭＤ（Ｓｕｒｆａｃｅ　Ｍｏｕｎｔ　Ｄｅｖｉｃｅ）タイプのものでもよい。 However, the form of the LED module is not particularly limited, and in addition to the configuration (COB type) in which the LED mounted on the substrate as described above is directly sealed by resin, it is also in a resin or ceramic case. It may be an SMD (Surface Mount Device) type sealed with a light transmitting member such as a resin in a state where the LED is mounted in advance.
　基板３０１は、矩形で長尺状であり、例えば透光性を有するアルミナ基板や窒化アルミニウム等のセラミック基板、樹脂基板、ガラス基板、メタルベース基板又はフレキシブル基板等である。基板３０１は、発光部からの可視光、つまりＬＥＤ３２１からの光を含む蛍光体含有樹脂３０２からの白色光を透過させる透光性を持つ。基板３０１としては、筐体２０３内部に配置可能な大きさであり、筐体２０３の内径より小さな幅（基板３０１の長手方向と直交する短手方向（Ｙ方向）の長さ）及び厚みを有し、かつ長手方向の長さについて筐体２０３の管軸方向の長さより短い長さを有するもの、例えば長手方向の長さが１４［ｃｍ］で厚みが１［ｍｍ］のものが用いられる。 The substrate 301 is rectangular and elongated, and is, for example, a translucent alumina substrate, a ceramic substrate such as aluminum nitride, a resin substrate, a glass substrate, a metal base substrate, a flexible substrate, or the like. The substrate 301 has translucency to transmit visible light from the light emitting portion, that is, white light from the phosphor-containing resin 302 including the light from the LED 321. The substrate 301 has a size that can be disposed inside the housing 203, and has a width smaller than the inner diameter of the housing 203 (the length in the short direction (Y direction) orthogonal to the longitudinal direction of the substrate 301) and thickness And, the length in the longitudinal direction is shorter than the length in the tube axis direction of the housing 203, for example, the length in the longitudinal direction is 14 [cm] and the thickness is 1 [mm].
　ここで、基板３０１の長手方向の長さをＬ１とし、短手方向の長さをＬ２とする。この場合、Ｌ１およびＬ２は、一例として、１０≦Ｌ１／Ｌ２なる関係式により規定される。 Here, the length in the longitudinal direction of the substrate 301 is L1, and the length in the lateral direction is L2. In this case, L1 and L2 are defined, for example, by the relational expression 10 ≦ L1 / L2.
　基板３０１表面に直線状に一列配置された複数のＬＥＤ３２１は、共通の１本の蛍光体含有樹脂３０２により覆われている。共通の蛍光体含有樹脂３０２で覆われた複数のＬＥＤ３２１は、基板３０１表面に形成された配線パターン及びワイヤー等により直列接続されている。 The plurality of LEDs 321 linearly arranged in a line on the surface of the substrate 301 are covered with a common single phosphor-containing resin 302. The plurality of LEDs 321 covered with the common phosphor-containing resin 302 are connected in series by a wiring pattern, a wire, and the like formed on the surface of the substrate 301.
　ＬＥＤ３２１は、単色の可視光を発するベアチップであり、基板３０１にフリップチップ実装又はワイヤーボンディング実装される。ＬＥＤ３２１としては、例えば青色光を発光する青色ＬＥＤチップ等が用いられる。青色ＬＥＤチップとしては、ＩｎＧａＮ系の材料によって構成された、中心波長が４４０［ｎｍ］～４７０［ｎｍ］の窒化ガリウム系の発光素子等を用いることができる。 The LED 321 is a bare chip that emits monochromatic visible light, and is flip-chip mounted or wire-bonded to the substrate 301. For example, a blue LED chip that emits blue light is used as the LED 321. As the blue LED chip, a gallium nitride-based light emitting element or the like having a central wavelength of 440 nm to 470 nm formed of an InGaN based material can be used.
　蛍光体含有樹脂３０２は、断面が上に凸の略半円状のドーム形状であり、ＬＥＤ３２１の並び方向に直線状に延びて設けられている。蛍光体含有樹脂３０２は、複数のＬＥＤ３２１に対応して設けられており、対応するＬＥＤ３２１の発光を受けて蛍光発光することにより、対応するＬＥＤ３２１からの光を波長変換する波長変換層として機能するとともに、対応するＬＥＤ３２１を封止して保護する。蛍光体含有樹脂３０２は、容易にドーム形状を形成するために、チクソ性の高い材料で構成することが好ましい。なお、ＬＥＤチップを被覆するための封止部材（波長変換層）は、樹脂に限定されるものではなく、チップ封止用として知られている、例えば、ガラスのような透明性材料を用いて形成されていてもよい。 The phosphor-containing resin 302 has a substantially semicircular dome shape having a convex cross section upward, and is provided to extend linearly in the arrangement direction of the LEDs 321. The phosphor-containing resin 302 is provided corresponding to the plurality of LEDs 321, and functions as a wavelength conversion layer for converting the wavelength of light from the corresponding LED 321 by emitting light from the corresponding LED 321 and emitting fluorescence. , Seal and protect the corresponding LED 321. The phosphor-containing resin 302 is preferably made of a material with high thixotropy in order to easily form a dome shape. In addition, the sealing member (wavelength conversion layer) for covering a LED chip is not limited to resin, For example, using transparent materials like glass for which chip sealing is known It may be formed.
　蛍光体含有樹脂３０２には、蛍光体微粒子等からなる光波長変換体が含まれている。例えば、ＬＥＤ３２１が青色ＬＥＤである場合、白色光を得るために、蛍光体微粒子としての黄色蛍光体微粒子をシリコーン樹脂に分散させて蛍光体含有樹脂３０２が構成される。黄色蛍光体粒子としては、ＹＡＧ（イットリウム・アルミニウム・ガーネット）系蛍光体材料、及びシリケート系蛍光体材料などを用いることができる。 The phosphor-containing resin 302 includes a light wavelength converter made of phosphor fine particles and the like. For example, when the LED 321 is a blue LED, the phosphor-containing resin 302 is configured by dispersing yellow phosphor fine particles as phosphor fine particles in a silicone resin in order to obtain white light. As the yellow phosphor particles, YAG (yttrium-aluminum-garnet) -based phosphor materials, silicate-based phosphor materials and the like can be used.
　基台２０４は、複数のＬＥＤモジュール３００の熱をＬＥＤランプ１００の外部に放熱し、さらに複数のＬＥＤモジュール３００のＬＥＤランプ１００内における位置を固定するためのヒートシンク等の金属製の板型放熱体であり、例えばアルミニウム合金材料で構成される。 The base 204 radiates the heat of the plurality of LED modules 300 to the outside of the LED lamp 100, and further, a metal plate type heat dissipating member such as a heat sink for fixing the positions of the plurality of LED modules 300 in the LED lamp 100. For example, it is made of an aluminum alloy material.
　基台２０４は、複数のＬＥＤモジュール３００を保持し、筐体２０３の内部に設けられ、筐体２０３と組み合わされる。なお、以下の説明では、基台２０４と筐体２０３とが接合されるとして説明するが、組み合わされればこれに限られない。基台２０４は、筐体２０３の表面に形成された開口部２０５を塞ぐように設けられており、基台２０４の表面の少なくとも一部は開口部２０５で筐体２０３の外側に露出する。 The base 204 holds the plurality of LED modules 300, is provided inside the housing 203, and is combined with the housing 203. In the following description, although the base 204 and the housing 203 are described as being joined, the combination is not limited thereto. The base 204 is provided to close the opening 205 formed in the surface of the housing 203, and at least a part of the surface of the base 204 is exposed to the outside of the housing 203 at the opening 205.
　基台２０４は、平板３１０と突出部３１１とから構成され、管軸方向と垂直な断面が略Ｔ字形状の部材である。基台２０４は、管軸方向の各部位においてこの略Ｔ字形状の断面を有する。 The base 204 is composed of a flat plate 310 and a protrusion 311, and is a member having a substantially T-shaped cross section perpendicular to the tube axis direction. The base 204 has this substantially T-shaped cross section at each portion in the tube axis direction.
　平板３１０は、その表面が開口部２０５で筐体２０３の外側に露出しており、筐体２０３とは別にＬＥＤランプ１００の筐体の一部として機能している。筐体２０３には、一方の端部から他方の端部に向かって延びるように管軸方向に沿って開口部２０５が設けられており、平板３１０はその両端部が筐体２０３の開口部２０５を形成する筐体２０３の周方向の両端部と嵌合している。具体的に、平板３１０の管軸方向と直交する方向（Ｙ方向）の両端部の端面には管軸方向に向かって延びるように凹部３１３及び３１４が設けられており、凹部３１３及び３１４で筐体２０３の開口部２０５を形成する周方向の両端部と嵌合している。従って、凹部３１３及び３１４の幅は、筐体２０３の厚さと略等しくなるように形成される。凹部３１３及び３１４と筐体２０３とが嵌合した状態で、筐体２０３の開口部２０５を形成する周方向の両端部の端面と凹部３１３及び３１４の底面とが接する。 The surface of the flat plate 310 is exposed to the outside of the housing 203 at the opening 205 and functions as a part of the housing of the LED lamp 100 separately from the housing 203. The housing 203 is provided with an opening 205 along the tube axis direction so as to extend from one end to the other end, and both ends of the flat plate 310 are the openings 205 of the housing 203. And the both end parts of the circumferential direction of the housing | casing 203 which forms a. Specifically, recesses 313 and 314 are provided on the end surfaces of both ends of the flat plate 310 in the direction (Y direction) orthogonal to the tube axis direction, and the recesses 313 and 314 It is fitted with both end portions in the circumferential direction forming the opening 205 of the body 203. Accordingly, the width of the recesses 313 and 314 is formed to be substantially equal to the thickness of the housing 203. With the recesses 313 and 314 and the housing 203 fitted, the end surfaces of both ends in the circumferential direction forming the opening 205 of the housing 203 are in contact with the bottom surfaces of the recesses 313 and 314.
　突出部３１１は、平板３１０の裏面から筐体２０３の内部に向けて突出し、頂部がＬＥＤモジュール３００の基板３０１の裏面と接合される。突出部３１１の頂部の面は、基板３０１の裏面と熱導電性の接着部材等で接合されており、突出部３１１を介して基台２０４と平板３１０とは一体化されている。平板３１０からの突出部３１１の高さを調整することにより、筐体２０３の中心軸（管軸）とＬＥＤモジュール３００の中心軸（管軸方向と垂直な面におけるＬＥＤ３２１の中心）とを揃えて良好な配光バランスを実現している。 The protrusion 311 protrudes from the back surface of the flat plate 310 toward the inside of the housing 203, and the top is joined to the back surface of the substrate 301 of the LED module 300. The top surface of the projecting portion 311 is joined to the back surface of the substrate 301 by a heat conductive adhesive member or the like, and the base 204 and the flat plate 310 are integrated via the projecting portion 311. By adjusting the height of the protrusion 311 from the flat plate 310, the central axis (tube axis) of the housing 203 and the central axis of the LED module 300 (center of the LED 321 in the plane perpendicular to the tube axis direction) are aligned. Good light distribution balance is realized.
　図４は、本実施形態のＬＥＤランプ１００の断面図（図２のＡＡ’線における断面図）である。 FIG. 4 is a cross-sectional view (a cross-sectional view along the line AA 'in FIG. 2) of the LED lamp 100 according to the present embodiment.
　筐体２０３の管軸方向と垂直な面において、ＬＥＤモジュール３００は、ＬＥＤ３２１を中心（図４のＡを中心）とした１８０度より大きい配光角（ＬＥＤ３２１からの光の１／２ビーム角）を有している。このとき、配光角は、配光特性を最大にするために、２８０度以上３２０度以下であることが好ましい。より好ましくは、配光角は３００度以下、最適には３００度である。これにより、自己吸収（基台２０４自身の光吸収）によるロスを小さくして発光効率を向上させることができる。 In a plane perpendicular to the tube axis direction of the housing 203, the LED module 300 has a light distribution angle larger than 180 degrees (1/2 beam angle of light from the LED 321) centered on the LED 321 (center A in FIG. 4) have. At this time, the light distribution angle is preferably 280 degrees or more and 320 degrees or less in order to maximize the light distribution characteristic. More preferably, the light distribution angle is 300 degrees or less, optimally 300 degrees. Thereby, the loss due to self-absorption (light absorption of the base 204 itself) can be reduced to improve the light emission efficiency.
　筐体２０３の管軸方向と垂直な面において、基台２０４の全部位つまり平板３１０及び突出部３１１の全部位がＬＥＤモジュール３００の配光角の外側に位置するように、平板３１０の幅及び突出部３１１の高さが設定されている。つまり、基台２０４の全部位つまり平板３１０及び突出部３１１の全部位がＬＥＤモジュール３００の１８０度より小さい配光角、好ましくは６０度の配光角内に位置するように、平板３１０の幅及び突出部３１１の高さが設定されている。例えば、筐体２０３の管軸方向と垂直な面において、突出部３１１で平板３１０の幅（Ｙ方向の幅）が等しく２分される場合、平板３１０の幅（Ｙ方向の幅）をｄ、突出部３１１の高さ（Ｚ方向の高さ）をｈとすると、ｔａｎ－１（ｄ／２ｈ）＜９０、好ましくはｔａｎ－１（ｄ／２ｈ）＝３０を満たすように平板３１０の幅及び突出部３１１の高さが設定される。 In a plane perpendicular to the tube axis direction of the housing 203, the width of the flat plate 310 and the entire area of the base 204, that is, all the areas of the flat plate 310 and the projecting portion 311 are located outside the light distribution angle of the LED module 300. The height of the protrusion 311 is set. That is, the width of the flat plate 310 is set such that the entire area of the base 204, that is, all the areas of the flat plate 310 and the projection 311 is located within the light distribution angle smaller than 180 degrees of the LED module 300, preferably 60 degrees. And the height of the protrusion part 311 is set. For example, in the case where the width of the flat plate 310 (the width in the Y direction) is equally divided into two by the projecting portion 311 in a plane perpendicular to the tube axis direction of the housing 203, the width of the flat plate 310 (the width in the Y direction) is d, Assuming that the height (height in the Z direction) of the projecting portion 311 is h, the width of the flat plate 310 and the width of the flat plate 310 are satisfied such that tan −1 (d / 2 h) <90, preferably tan −1 (d / 2 h) = 30. The height of the protrusion 311 is set.
　図５は、本実施形態のＬＥＤランプ１００の製造方法、つまりＬＥＤモジュール３００、筐体２０３及び基台２０４を一体化させる方法を説明するための斜視図である。 FIG. 5 is a perspective view for explaining the method of manufacturing the LED lamp 100 according to this embodiment, that is, the method of integrating the LED module 300, the housing 203, and the base 204.
　まず、基板３０１表面にＬＥＤ３２１及び蛍光体含有樹脂３０２を形成して複数のＬＥＤモジュール３００を形成した後、複数の基板３０１のそれぞれの裏面に基台２０４の突出部３１１の頂部を接合させる（図５（ａ））。これにより、ＬＥＤモジュール３００と基台２０４とが一体化される。 First, the LEDs 321 and the phosphor-containing resin 302 are formed on the surface of the substrate 301 to form a plurality of LED modules 300, and then the tops of the protrusions 311 of the base 204 are bonded to the back surfaces of the plurality of substrates 301 (see FIG. 5 (a). Thereby, the LED module 300 and the base 204 are integrated.
　次に、基台２０４を筐体２０３の管軸方向の端部から挿入させる（図５（ｂ））。そして、筐体２０３の開口部２０５を形成する筐体２０３の周方向の両端部と基台２０４とを嵌合させた状態で基台２０４を管軸方向にスライドさせる（図５（ｃ））。これにより、筐体２０３と基台２０４とが一体化される。 Next, the base 204 is inserted from the end in the tube axis direction of the housing 203 (FIG. 5 (b)). Then, the base 204 is slid in the direction of the tube axis in a state in which both ends in the circumferential direction of the housing 203 forming the opening 205 of the housing 203 and the base 204 are fitted (FIG. 5 (c)) . Thereby, the housing 203 and the base 204 are integrated.
　以上のように、本実施形態のＬＥＤランプ１００によれば、ＬＥＤモジュール３００は１８０度より大きい配光角を有するため、基板３０１のＬＥＤ３２１が設けられていない側つまり裏面側に光を供給することができ、全方位の配光特性のランプを実現できる。また、基台２０４により筐体２０３とＬＥＤモジュール３００との一体化が容易になり、ＬＥＤランプ１００の組み立てを簡素化できる。このとき、基台２０４はＬＥＤランプ１００の配光角の外側に位置するため、基板３０１の裏面側に向かう光は基台２０４により吸収されない。その結果、全方位の配光特性を持ち、かつ組み立てが容易なＬＥＤランプ１００を実現できる。 As described above, according to the LED lamp 100 of the present embodiment, since the LED module 300 has a light distribution angle larger than 180 degrees, light is supplied to the side of the substrate 301 where the LED 321 is not provided, that is, the back side. It is possible to realize a lamp with light distribution characteristics in all directions. Further, the base 204 facilitates the integration of the housing 203 and the LED module 300, and the assembly of the LED lamp 100 can be simplified. At this time, since the base 204 is located outside the light distribution angle of the LED lamp 100, the light directed to the back side of the substrate 301 is not absorbed by the base 204. As a result, it is possible to realize the LED lamp 100 having light distribution characteristics in all directions and being easy to assemble.
　また、本実施形態のＬＥＤランプ１００によれば、基台２０４の一部が外気と接するため、ＬＥＤ３２１の熱を効率的に放熱することができる。その結果、ＬＥＤ３２１の温度上昇を抑えてその寿命を長くできると共に、ＬＥＤ３２１自身の光出力の低下を抑えることができる。 Moreover, according to the LED lamp 100 of the present embodiment, since a part of the base 204 is in contact with the outside air, the heat of the LED 321 can be efficiently dissipated. As a result, the temperature rise of the LED 321 can be suppressed and the life thereof can be extended, and the decrease of the light output of the LED 321 itself can be suppressed.
　また、本実施形態のＬＥＤランプ１００によれば、基台２０４を筐体２０３に対してスライド挿入することで、基台２０４と筐体２０３とを一体化できるため、ＬＥＤランプ１００の組み立てを簡素化できる。 Further, according to the LED lamp 100 of the present embodiment, the base 204 and the housing 203 can be integrated by slidingly inserting the base 204 into the housing 203, so the assembly of the LED lamp 100 is simplified. Can be
　（第２の実施形態）
　図６は、本発明の第１の実施形態に係るＬＥＤランプ１１０の構成の概略を示す斜視図である。図７は、本実施形態のＬＥＤランプ１１０の断面図（図６のＡＡ’線における断面図）である。なお、図６において、Ｘ、Ｙ、Ｚ方向の各々は、互いに直交する。 Second Embodiment
FIG. 6 is a perspective view showing an outline of the configuration of the LED lamp 110 according to the first embodiment of the present invention. FIG. 7 is a cross-sectional view (a cross-sectional view taken along the line AA ′ of FIG. 6) of the LED lamp 110 according to the present embodiment. In FIG. 6, the X, Y, and Z directions are orthogonal to one another.
　本実施形態のＬＥＤランプ１１０は、基台４０４が筐体２０３の外部に露出することなく、筐体２０３の内部に設けられているという点で第１の実施形態のＬＥＤランプ１００と異なる。 The LED lamp 110 of this embodiment differs from the LED lamp 100 of the first embodiment in that the base 404 is provided inside the housing 203 without being exposed to the outside of the housing 203.
　このＬＥＤランプ１１０は、筐体２０３と、筐体２０３の内部に設けられた基台４０４と、口金２０１と、複数のＬＥＤモジュール３００とを備える。 The LED lamp 110 includes a housing 203, a base 404 provided inside the housing 203, a base 201, and a plurality of LED modules 300.
　基台４０４は、複数のＬＥＤモジュール３００の熱をＬＥＤランプ１００の外部に放熱し、さらに複数のＬＥＤモジュール３００のＬＥＤランプ１００内における位置を固定するためのヒートシンク等の金属製の板型放熱体であり、例えばアルミニウム合金材料で構成される。 The base 404 dissipates the heat of the plurality of LED modules 300 to the outside of the LED lamp 100, and further, a metal plate type radiator such as a heat sink for fixing the positions of the plurality of LED modules 300 in the LED lamp 100. For example, it is made of an aluminum alloy material.
　基台４０４は、複数のＬＥＤモジュール３００を保持し、熱導電性の接着部材等で筐体２０３の内面と接合される。基台４０４は、その表面が筐体２０３の内面と接合された平板４１０と、突出部４１１とから構成され、管軸方向と垂直な断面が略Ｔ字形状の部材である。基台４０４は、管軸方向の各部位においてこの略Ｔ字形状の断面を有する。 The base 404 holds the plurality of LED modules 300 and is joined to the inner surface of the housing 203 by a heat conductive adhesive member or the like. The base 404 is a member having a flat plate 410 whose surface is joined to the inner surface of the housing 203 and a projecting portion 411, and is a member having a substantially T-shaped cross section perpendicular to the tube axis direction. The base 404 has this substantially T-shaped cross section at each portion in the tube axis direction.
　平板４１０は、その表面の全面が筐体２０３の内面と密着するように、管内面の曲率と同様の曲率の曲面となっている。具体的に、平板４１０の表面は筐体２０３の内径の半分の長さの曲率の円弧形状を有し、例えば最大厚み１．２［ｍｍ］を有する。これにより、基台４０４を筐体２０３と密着させて両者の接触面積を大きくすることができ、放熱効率を改善することができる。 The flat plate 410 is a curved surface having the same curvature as that of the inner surface of the tube so that the entire surface of the flat surface 410 is in close contact with the inner surface of the housing 203. Specifically, the surface of the flat plate 410 has an arc shape with a curvature of half the length of the inner diameter of the housing 203, and has, for example, a maximum thickness of 1.2 [mm]. As a result, the base 404 can be brought into close contact with the housing 203 to increase the contact area between the two, and the heat radiation efficiency can be improved.
　突出部４１１は、平板４１０の裏面から筐体２０３の内部に向けて突出し、頂部がＬＥＤモジュール３００の基板３０１の裏面と接合される。突出部４１１の頂部の面は、基板３０１の裏面と熱導電性の接着部材等で接合されており、突出部４１１を介して基台４０４と平板３１０とは一体化されている。平板４１０からの突出部４１１の高さを調整することにより、筐体２０３の中心軸（管軸）とＬＥＤモジュール３００の中心軸（管軸方向と垂直な面におけるＬＥＤ３２１の中心）とを揃えて良好な配光バランスを実現している。 The protrusion 411 protrudes from the back surface of the flat plate 410 toward the inside of the housing 203, and the top is joined to the back surface of the substrate 301 of the LED module 300. The top surface of the projecting portion 411 is joined to the back surface of the substrate 301 by a heat conductive adhesive member or the like, and the base 404 and the flat plate 310 are integrated via the projecting portion 411. By adjusting the height of the protrusion 411 from the flat plate 410, the central axis (tube axis) of the housing 203 and the central axis of the LED module 300 (center of the LED 321 in the plane perpendicular to the tube axis direction) are aligned. Good light distribution balance is realized.
　筐体２０３の管軸方向と垂直な面において、基台４０４の全部位つまり平板４１０及び突出部４１１の全部位がＬＥＤモジュール３００の配光角の外側に位置するように、平板４１０の幅（Ｙ方向の幅）及び突出部４１１の高さ（Ｚ方向の高さ）が設定されている。 In a plane perpendicular to the tube axis direction of the housing 203, the width of the flat plate 410 is set such that all portions of the base 404, that is, all portions of the flat plate 410 and the projecting portion 411 are located outside the light distribution angle of the LED module 300 The width in the Y direction) and the height (height in the Z direction) of the protrusion 411 are set.
　上記構成のＬＥＤランプ１１０では、複数のＬＥＤモジュール３００が形成された後、複数の基板３０１のそれぞれの裏面に基台４０４の突出部４１１の頂部を接合させて、基台４０４とＬＥＤモジュール３００とが一体化される。そして、基台４０４を筐体２０３の管軸方向の端部から挿入し、筐体２０３の内面に平板４１０の表面の全面を接合させて基台４０４と筐体２０３とが一体化される。 In the LED lamp 110 configured as described above, after the plurality of LED modules 300 are formed, the tops of the protrusions 411 of the base 404 are joined to the back surfaces of the plurality of substrates 301, and the base 404 and the LED modules 300 Are integrated. Then, the base 404 is inserted from the end of the casing 203 in the tube axis direction, and the entire surface of the flat plate 410 is joined to the inner surface of the casing 203, whereby the base 404 and the casing 203 are integrated.
　以上のように、本実施形態のＬＥＤランプ１１０によれば、第１の実施形態と同様の理由により全方位の配光特性を持ち、かつ組み立てが容易なＬＥＤランプ１１０を実現できる。 As described above, according to the LED lamp 110 of the present embodiment, the LED lamp 110 having light distribution characteristics in all directions and easy to assemble can be realized for the same reason as that of the first embodiment.
　なお、本実施形態において、基台４０４の平板４１０の表面は筐体２０３の内面と密着するとしたが、筐体２０３の内面と基台４０４の平板４１０とを接合できれば、これに限られない。例えば、図８に示すように、基台４０４の平板４１０は線接触する形で筐体２０３の内面に接合されてもよい。 In the present embodiment, the surface of the flat plate 410 of the base 404 is in close contact with the inner surface of the housing 203. However, the present invention is not limited thereto as long as the inner surface of the housing 203 and the flat plate 410 of the base 404 can be joined. For example, as shown in FIG. 8, the flat plate 410 of the base 404 may be joined to the inner surface of the housing 203 in line contact.
　（第３の実施形態）
　図９は、本発明の第３の実施形態に係る照明装置の構成を示す斜視図である。 Third Embodiment
FIG. 9 is a perspective view showing a configuration of a lighting device according to a third embodiment of the present invention.
　照明装置６００は、第１の実施形態又は第２の実施形態に係るＬＥＤランプ４００と照明器具７００とを備える。 The lighting device 600 includes the LED lamp 400 and the lighting fixture 700 according to the first embodiment or the second embodiment.
　照明器具７００は、ＬＥＤランプ４００と電気的に接続され、かつＬＥＤランプ４００を保持する一対のソケット７０１と、ソケット７０１が取着されている器具本体７０３とを備える。 The lighting fixture 700 includes a pair of sockets 701 electrically connected to the LED lamp 400 and holding the LED lamp 400, and a fixture body 703 to which the socket 701 is attached.
　器具本体７０３の内面７０３ａは、ＬＥＤランプ４００から発せられた光を所定方向（例えば、下方である。）に反射させる反射面となっている。 The inner surface 703a of the instrument body 703 is a reflective surface that reflects the light emitted from the LED lamp 400 in a predetermined direction (for example, the lower side).
　照明器具７００は、天井等に固定具を介して装着される。 The lighting fixture 700 is mounted on a ceiling or the like via a fixture.
　以上、本発明のＬＥＤランプ及び照明装置について、実施形態に基づいて説明したが、本発明は、これらの実施形態に限定されるものではない。本発明の要旨を逸脱しない範囲内で当業者が思いつく各種変形を施したものも本発明の範囲内に含まれる。また、発明の趣旨を逸脱しない範囲で、複数の実施形態における各構成要素を任意に組み合わせてもよい。 As mentioned above, although the LED lamp and illuminating device of this invention were demonstrated based on embodiment, this invention is not limited to these embodiment. It is within the scope of the present invention to apply various modifications that those skilled in the art would think within the scope of the present invention. Moreover, you may combine each component in several embodiment arbitrarily in the range which does not deviate from the meaning of invention.
　例えば、上記実施形態において、ＬＥＤモジュール３００の基板３０１上の複数のＬＥＤ３２１は共通の蛍光体含有樹脂３０２により一括封止されるとした。しかし、複数のＬＥＤ３２１のそれぞれは別の蛍光体含有樹脂３０２により個別に封止されてもよい。 For example, in the above embodiment, the plurality of LEDs 321 on the substrate 301 of the LED module 300 are collectively sealed by the common phosphor-containing resin 302. However, each of the plurality of LEDs 321 may be individually sealed by another phosphor-containing resin 302.
　また、上記実施形態において、発光素子としてＬＥＤを例示したが、半導体レーザ等の半導体発光素子、有機ＥＬ（Ｅｌｅｃｔｒｏ　Ｌｕｍｉｎｅｓｃｅｎｃｅ）又は無機ＥＬ等の固体発光素子であってもよい。 Further, in the above embodiment, the LED is exemplified as the light emitting element, but it may be a semiconductor light emitting element such as a semiconductor laser, or a solid light emitting element such as organic EL (Electro Luminescence) or inorganic EL.
　また、上記実施形態において、筐体２０３の一方の口金２０１から給電される片側給電形のランプについて説明したが、筐体２０３の両端部から給電される両端給電形であってもよい。 Further, in the above embodiment, the single-sided feed type lamp supplied with power from one of the caps 201 of the housing 203 has been described, but it may be a double-sided power supply type supplied with power from both ends of the housing 203.
　また、上記実施形態において、筐体２０３は円管状であるとしたが、管状であればこれに限られない。 Moreover, in the said embodiment, although the housing | casing 203 presupposed that it is circular tubular shape, if it is a tubular shape, it will not be restricted to this.
　また、上記実施形態において、基板３０１は断面形状が矩形状であるとしたが、断面形状が四角形（矩形）以外の多角形の基板であっても構わない。すなわち、基板３０１は、三角柱、五角柱及び六角柱等であってもよい。 In the above embodiment, although the substrate 301 has a rectangular cross-sectional shape, it may be a polygonal substrate other than a quadrangular (rectangular) cross-sectional shape. That is, the substrate 301 may be a triangular prism, a pentagonal prism, a hexagonal prism, or the like.
　また、上記実施形態において、基板３０１は透光性を有するとした。しかし、基板３０１の裏面側に光を供給することができれば、基板３０１は透光性を有しなくてもよい。例えば基板３０１の幅（Ｙ方向の幅）を狭く形成することにより実現することができる。 Further, in the above embodiment, the substrate 301 has translucency. However, as long as light can be supplied to the back surface side of the substrate 301, the substrate 301 may not have translucency. For example, it can be realized by narrowing the width of the substrate 301 (the width in the Y direction).
　また、上記実施形態において、基板３０１の裏面側に多くの光を供給するために、筐体２０３の内面がＬＥＤモジュール３００の発する光に対して光学機能を持ってもよい。光学機能は、例えば、図１０に示されるように、筐体２０３の内面を集光及び光を拡散可能な形状（例えば、凹凸のある形状）に加工し、筐体２０３の内面にＬＥＤ３２１の光を筐体２０３の内部に向けて拡散反射する反射面を形成することにより実現される。なお、図１０に示される形状の加工は、筐体２０３の内面の全部に施されてもよいし、筐体２０３の外面に施されてもよい。 Further, in the above embodiment, the inner surface of the housing 203 may have an optical function with respect to the light emitted from the LED module 300 in order to supply a large amount of light to the back surface side of the substrate 301. As an optical function, for example, as shown in FIG. 10, the inner surface of the housing 203 is processed into a shape capable of condensing and diffusing light (for example, a shape having unevenness), and the light of the LED 321 is formed on the inner surface of the housing 203. Toward the inside of the housing 203 by forming a reflection surface that diffuses and reflects light. The processing of the shape shown in FIG. 10 may be applied to the entire inner surface of the housing 203 or may be applied to the outer surface of the housing 203.
　本発明は、ＬＥＤ等の発光素子を用いたランプ、特に、直管状の蛍光灯の代替照明としてのＬＥＤランプ及びこれを備えた照明装置等に利用することができる。 INDUSTRIAL APPLICABILITY The present invention can be used for a lamp using a light emitting element such as an LED, in particular, an LED lamp as an alternative illumination of a straight tubular fluorescent lamp, an illumination apparatus including the same, and the like.
　　１００、１１０、４００　　ＬＥＤランプ
　　２０１　　口金
　　２０２　　口金ピン
　　２０３　　筐体
　　２０４、４０４　　基台
　　２０５　　開口部
　　３００　　ＬＥＤモジュール
　　３０１　　基板
　　３０２　　蛍光体含有樹脂
　　３１０、４１０　　平板
　　３１１、４１１　　突出部
　　３１３、３１４　　凹部
　　３２１　　ＬＥＤ
　　６００　　照明装置
　　７００　　照明器具
　　７０１　　ソケット
　　７０３　　器具本体
　　７０３ａ　　内面 100, 110, 400 LED lamp 201 base 202 base connector 203 housing 204, 404 base 205 opening 300 LED module 301 substrate 302 phosphor-containing resin 310, 410 flat plate 311, 411 protrusion 313, 314 recess 321 LED
600 lighting apparatus 700 lighting apparatus 701 socket 703 apparatus main body 703a inner surface

Claims (10)

  1. 　長尺状の筐体と、
    　基板および前記基板の表面に実装された発光素子を有し、前記筐体の内部に設けられた発光モジュールと、
    　前記発光モジュールを保持し、少なくとも一部が前記筐体の内部に設けられ、前記筐体と組み合わされた基台とを備え、
    　前記筐体の管軸方向と垂直な面において、前記発光モジュールは前記発光素子を中心とした１８０度より大きい配光角を有し、前記基台の全部位は前記配光角の外側に位置する
    　ランプ。     With a long case,
    A light emitting module mounted on the inside of the housing, the light emitting element having a substrate and a light emitting element mounted on the surface of the substrate;
    And a base which holds the light emitting module, at least a part of which is provided inside the housing, and which is combined with the housing.
    The light emitting module has a light distribution angle larger than 180 degrees centered on the light emitting element in a plane perpendicular to the tube axis direction of the housing, and all parts of the base are located outside the light distribution angle Ramp.
  2. 　前記配光角は、２８０度以上３２０度以下である
    　請求項１に記載のランプ。     The lamp according to claim 1, wherein the light distribution angle is 280 degrees or more and 320 degrees or less.
  3. 　前記基台は、前記筐体の表面に形成された開口部を塞ぐように設けられ、
    　前記基台の表面は、前記開口で前記筐体の外側に露出する
    　請求項１又は２に記載のランプ。     The base is provided to close an opening formed on the surface of the housing,
    The lamp according to claim 1, wherein the surface of the base is exposed to the outside of the housing at the opening.
  4. 　前記開口は、前記筐体の管軸方向の一方の端部から他方の端部に向かって延びるように設けられており、
    　前記基台は、前記筐体の開口を形成する前記筐体の周方向の両端部と前記基台とを嵌合させた状態で前記基台を前記管軸方向にスライドさせることで前記筐体と一体化される
    　請求項３に記載のランプ。     The opening is provided so as to extend from one end in the tube axis direction of the housing toward the other end.
    The base is configured to slide the base in the tube axial direction in a state in which both ends of the casing in the circumferential direction forming the opening of the case are fitted to the base. The lamp according to claim 3 integrated with.
  5. 　前記基台は、
    　両端部が前記筐体の周方向の両端部と嵌合し、表面が前記開口で前記筐体の外側に露出する平板と、
    　前記平板の裏面から前記筐体の内部に向けて突出し、頂部が前記基板の裏面と接合された突出部とを有する
    　請求項４に記載のランプ。     The base is
    A flat plate in which both end portions are fitted with both end portions in the circumferential direction of the housing, and a surface is exposed to the outside of the housing at the opening;
    The lamp according to claim 4, further comprising: a protruding portion that protrudes from the back surface of the flat plate toward the inside of the housing, and a top portion is joined to the back surface of the substrate.
  6. 　前記基台は、
    　表面が前記筐体の内面と接合された平板と、
    　前記平板の裏面から前記筐体の内部に向けて突出し、頂部が前記基板の裏面と接合された突出部とを有する
    　請求項１又は２に記載のランプ。     The base is
    A flat plate whose surface is joined to the inner surface of the housing;
    The lamp according to claim 1 or 2, further comprising: a projecting portion which protrudes from the back surface of the flat plate toward the inside of the housing, and a top portion is joined to the back surface of the substrate.
  7. 　前記基板は、前記発光素子の光を透過させる
    　請求項１～６のいずれか１項に記載のランプ。     The lamp according to any one of claims 1 to 6, wherein the substrate transmits the light of the light emitting element.
  8. 　前記筐体の内面には、前記発光素子の光を前記筐体の内部に向けて反射する反射面が形成されている
    　請求項１～７のいずれか１項に記載のランプ。     The lamp according to any one of claims 1 to 7, wherein a reflection surface that reflects light of the light emitting element toward the inside of the housing is formed on an inner surface of the housing.
  9. 　前記基台は、金属から構成される放熱体である
    　請求項１～８のいずれか１項に記載のランプ。     The lamp according to any one of claims 1 to 8, wherein the base is a heat sink made of metal.
  10. 　請求項１～９のいずれか１項に記載のランプを備える
    　照明装置。     A lighting device comprising the lamp according to any one of claims 1 to 9.
PCT/JP2012/008222 2012-03-09 2012-12-21 Lamp and illuminating apparatus WO2013132566A1 (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
JP2015149202A (en) * 2014-02-07 2015-08-20 株式会社Maruwa Led module assembly and illumination lamp using the same
WO2015140866A1 (en) * 2014-03-15 2015-09-24 エヌズエンタープライズ株式会社 Led fluorescent lighting device
CN109244215A (en) * 2018-09-12 2019-01-18 苏州星烁纳米科技有限公司 Light emitting device

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Publication number Priority date Publication date Assignee Title
JP2008028182A (en) * 2006-07-21 2008-02-07 Toshiba Lighting & Technology Corp Lighting device
WO2010082655A1 (en) * 2009-01-19 2010-07-22 ローム株式会社 Led lamp
WO2011122781A2 (en) * 2010-04-02 2011-10-06 루미리치 주식회사 Light emitting diode lighting lamp

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2008028182A (en) * 2006-07-21 2008-02-07 Toshiba Lighting & Technology Corp Lighting device
WO2010082655A1 (en) * 2009-01-19 2010-07-22 ローム株式会社 Led lamp
WO2011122781A2 (en) * 2010-04-02 2011-10-06 루미리치 주식회사 Light emitting diode lighting lamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015149202A (en) * 2014-02-07 2015-08-20 株式会社Maruwa Led module assembly and illumination lamp using the same
WO2015140866A1 (en) * 2014-03-15 2015-09-24 エヌズエンタープライズ株式会社 Led fluorescent lighting device
JPWO2015140866A1 (en) * 2014-03-15 2017-04-06 エヌズエンタープライズ株式会社 LED fluorescent lighting device
CN109244215A (en) * 2018-09-12 2019-01-18 苏州星烁纳米科技有限公司 Light emitting device
CN109244215B (en) * 2018-09-12 2024-01-30 苏州星烁纳米科技有限公司 Light emitting device

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JP5540157B2 (en) 2014-07-02
CN204240087U (en) 2015-04-01

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