WO2013018242A1 - ランプ - Google Patents
ランプ Download PDFInfo
- Publication number
- WO2013018242A1 WO2013018242A1 PCT/JP2012/000965 JP2012000965W WO2013018242A1 WO 2013018242 A1 WO2013018242 A1 WO 2013018242A1 JP 2012000965 W JP2012000965 W JP 2012000965W WO 2013018242 A1 WO2013018242 A1 WO 2013018242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- groove
- semiconductor light
- lamp
- emitting element
- Prior art date
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Classifications
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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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
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- 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
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
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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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
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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
- F21V3/00—Globes; Bowls; Cover glasses
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- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
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- 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 using a semiconductor light emitting element such as an LED as a light source, and more particularly to a mounting structure of a globe covering an LED module.
- the glove is attached for the purpose of improving the light distribution characteristic of the lamp and improving the design.
- a glove attachment structure for example, in the case of a lamp 900 as shown in FIG. 10, it occurs between a base 902 on which the LED module 901 is mounted and a case 903 externally fitted to the base 902.
- Adhesives 904a and 904b are filled in the gaps, and the opening side end of the glove 905 is inserted from above to bond the base 902, the case 903 and the glove 905 integrally.
- the filling amount of the adhesives 904a and 904b it is necessary to pay close attention to the filling amounts of the adhesives 904a and 904b. If the filling amount is too small, the glove 905 may come off the base 902, which is dangerous. On the other hand, if the filling amount is too large, as shown in FIG. 10, for example, the adhesive 904b protruding from the inside of the groove may contaminate the outside of the case 903 and damage the appearance of the lamp 900.
- an object of the present invention is to provide a lamp whose lamp appearance is not easily impaired by an adhesive for bonding a glove to a base.
- a lamp according to the present invention includes a semiconductor light emitting device as a light source, a base on which the semiconductor light emitting device is mounted, and a groove is provided to surround the semiconductor light emitting device, and the base side
- the semiconductor light emitting element is disposed to cover the upper side of the semiconductor light emitting element, and is bonded to the base by an adhesive filled in the groove with the end on the opening side inserted in the groove.
- the groove portion in the present application means one having a pair of opposing side wall surfaces, in other words, one having a concave cross-sectional shape in which the height level once falls or rises. Therefore, as in the base 902 shown in FIG. 10, the height of the step on the outer periphery of the upper surface is only one side wall and the opposite side is open.
- the level is not included in the groove in the present application because it does not go up and down and does not have a concave cross-sectional shape.
- the pair of opposing side wall surfaces of the groove portion does not necessarily have to be parallel, and it includes those in which the side wall surfaces are not parallel as in the groove portion having a V-shaped cross section.
- the base and the glove are formed by an adhesive filled in the groove with the end portion on the opening side of the glove inserted in the groove provided on the upper surface of the base. Since it is adhered and the extension of the case protrudes upward beyond the outer peripheral edge of the upper surface of the base, even if the adhesive protrudes from the groove, the adhesive which has expanded is first Since it is accumulated near the groove on the upper surface of the base and in the extension of the case, it easily passes over the extension and does not reach the outside of the case. Therefore, since the adhesive hardly leaks to the outside of the case, the appearance of the lamp is hardly impaired.
- Sectional view showing a lamp according to the present embodiment Sectional view showing a lamp according to the present embodiment Top view showing the lamp with the glove removed Perspective view of the lamp with the glove removed
- a perspective view showing the lamp with the globe and the LED module removed An enlarged sectional view showing a portion surrounded by a two-dot chain line in FIG. 1
- An enlarged sectional view showing a portion surrounded by a two-dot chain line in FIG. 2 The perspective view for demonstrating the LED module which concerns on a modification Top view for explaining an LED module according to a modification Cross section showing a lamp according to the prior art
- FIG. 1 and 2 are cross-sectional views showing a lamp according to the present embodiment.
- FIG. 3 is a plan view showing the lamp with the glove removed.
- FIG. 4 is a perspective view showing the lamp with the glove removed.
- FIG. 5 is a perspective view showing the lamp with the globe and the LED module removed.
- 1 is a cross-sectional view taken along the line AA in FIG. 3
- FIG. 2 is a cross-sectional view taken along the line BB in FIG.
- the lamp 1 is a so-called ball-shaped LED lamp, and includes an LED module 10, a base 20 on which the LED module 10 is mounted, and an LED module 10. , A circuit unit 40 for emitting light from the LED module 10, a base 50 electrically connected to the circuit unit 40, a circuit holder 60 in which the circuit unit 40 is housed, and a base 20 And the circuit unit 40, and a case 80 externally fitted to a part of the circuit holder 60 and the base 20.
- the LED module 10 includes, for example, a substantially square plate-shaped mounting substrate 11, a plurality of substantially rectangular LED 12 mounted on the upper surface of the mounting substrate 11, and a plurality of lengths covering the LEDs 12. And a sealing member 13.
- the LED 12 is preferably mounted on the upper surface of the mounting substrate 11 using COB (Chip on Board) technology, but may be mounted using an SMD (Surface Mount Device) type.
- COB Chip on Board
- SMD Surface Mount Device
- the semiconductor light emitting element may be, for example, an LD (laser diode) or an EL element (electric luminescence element) Also good.
- each of the LEDs 12 is, for example, a blue-emitting GaN-based LED, and 25 LEDs are arranged in a matrix of 5 columns and 5 rows.
- Each sealing member 13 is formed of, for example, a translucent material mixed with a wavelength conversion material that converts blue light into yellow light, and for each element row configured by five LEDs 12 arranged in a line, It is sealed by one sealing member 13. That is, there are five sealing members 13.
- silicone resin can be used as the translucent material of the sealing member 13.
- phosphor particles can be used for the wavelength conversion material of the sealing member 13.
- the sealing member 13 for performing other wavelength conversion and other light-emitting LEDs May be used.
- the wavelength conversion material does not necessarily have to be mixed in the translucent material, and when using a white light emitting LED or using three kinds of LEDs of blue light emission, red light emission and green light emission, these light emission When mixing colors to obtain white light, mixing of the wavelength conversion material is unnecessary.
- the sealing member is not limited to a configuration in which the LEDs are sealed by one sealing member for each element row, and for example, a configuration in which one LED is sealed by one sealing member may be used.
- the light emitting diode may be sealed by one sealing member.
- the wavelength conversion material is mixed in the translucent material, but for example, a wavelength conversion layer containing the wavelength conversion material may be formed on the surface of the translucent material, and further, A wavelength conversion layer containing a wavelength conversion material may be provided outside the LED module, for example, on the inner surface 35 of the globe 30.
- the base 20 has a substantially disc shape and is disposed so as to close the opening of the glove 30.
- the LED module 10 is mounted substantially at the center of the upper surface 21 which is the main surface on the glove 30 side. As shown in FIG. 2, when the LED module 10 is attached to the base 20, the screw 14 penetrating the through hole 11 a provided in the mounting substrate 11 of the LED module 10 is provided on the upper surface 21 of the base 20. It is screwed into the screw hole 21a.
- the LED module 10 may be attached to the base 20 using an adhesive or an engagement structure.
- a substantially annular groove 22 is provided on the top surface 21 of the base 20 so as to surround the LED module 10.
- the groove 22 is provided in the vicinity of the outer peripheral edge of the upper surface 21 of the base 20 along the outer peripheral edge.
- the groove part 22 may be continuous over 1 round, and may be parted in some places. In this embodiment, it is divided at two places, and it becomes an aspect which combined two semicircular arc-like groove parts.
- the base 20 and the glove 30 are adhesive filled in the groove 22 with the opening end 33 of the glove 30 inserted in the groove 22 of the base 20. Bonded by 90.
- the glove 30 and the case 80 can be configured not to be bonded by the adhesive 90.
- the lamp (1) When disassembling, only the case 80 can be easily removed from the base 20 without removing the glove 30 from the base 20.
- the side wall surface 22a (hereinafter, “inside wall surface 22a”) of the groove 22 on the LED module 10 side (hereinafter, “inside”) is a side wall surface 22b of the groove 22 opposite to the LED module 10 (hereinafter, “outside”).
- outside wall surface 22b is pushed out above.
- the inner wall surface 22a and the outer wall surface 22b have the same height level at the lower end edge, but the height level of the upper edge is higher at the inner wall surface 22a than at the outer wall surface 22b. Therefore, the region 21 b inside the groove 22 in the top surface 21 of the base 20 is located above the region 21 c outside the groove 22 in the top surface 21.
- the adhesive 90 easily flows to the outer region 21 c located below the inner region 21 b of the upper surface 21 of the base 20, so the outer region 21 c The adhesive 90 tends to stick out. Therefore, there is little possibility that the adhesive 90 sticks out to the inner region 21b and adheres to the LED module 10, the electric wires 44, 45, and the like to cause a lighting failure.
- the height difference H between the inner region 21b and the outer region 21c on the upper surface 21 of the base 20 is preferably 0.1 mm or more, and 1 mm or more. It is more preferable to
- the upper end 82 a of the extension 82 of the case 80 is located above the upper surface 21 of the base 20. That is, the height level L1 of the upper end 82a of the extension portion 82 of the case 80 is higher than the height level L2 of the upper surface 21 of the base 20.
- a shadow produced by the light emitted from the LED module 10 being blocked by the base 20 is not covered by the extending portion 82 of the spherical portion 32 of the globe 30 (in the spherical portion 32 This does not occur in the region above the upper end 82 a of the extension 82 of the case 80. Therefore, the dark part by the shadow of the base 20 does not arise in the spherical part 32 of the glove
- the recessed part 23 may be provided in the outer side wall surface 22b of the groove part 22, and may be provided in both the inner side wall surface 22a and the outer side wall surface 22b. Further, the number, arrangement, and shape of the recesses 23 provided in the inner wall surface 22a and the outer wall surface 22b are arbitrary.
- a plurality of holes 25 are provided on the lower surface 24 of the base 20.
- Each hole 25 is provided in association with each recess 23, and the corresponding hole 25 and the recess 23 communicate with each other.
- the groove width of the groove portion 22 extends upward in the vicinity of the upper surface 21 of the base 20.
- the groove width of the groove portion 22 is the distance from the inner wall surface 22a to the outer wall surface 22b in the direction orthogonal to the lamp axis J (the rotation axis when screwing the lamp 1 into the socket).
- the inner wall surface 22a is parallel to the entire lamp axis J, but the outer wall surface 22b is inclined on the upper surface 21 side so as to be inclined away from the lamp axis J as it goes upward.
- the groove width W1 in the inclined region 22c of the outer wall surface 22b is equal to that of the outer wall surface 22b, and has a region 22c and a parallel region 22d located below and parallel to the lamp axis J. It is wider than the groove width W2 in the parallel region 22d.
- the open end 33 of the glove 30 can be easily inserted into the groove 22.
- the shape of the outer wall surface 22b conforms to the shape of the outer surface 34 of the glove 30, the glove 30 does not easily tilt until the adhesive 90 hardens, and the glove 30 can be bonded in an appropriate posture.
- the area of the outer wall surface 22b is increased by the amount of the slope, so that the bonding area between the base 20 and the globe 30 can be increased.
- the groove width of the groove portion 22 is larger than the thickness of the cylindrical portion 31 of the glove 30, and the difference thereof ensures the filling space of the adhesive 90.
- the groove width W1 is preferably larger than the thickness of the cylindrical portion 31 of the glove 30 by 1 to 3 mm.
- the groove width W2 is preferably larger than the thickness of the cylindrical portion 31 of the globe 30 by 4 to 6 mm.
- the adhesive 90 protrudes from the inside of the groove 22 and leaks to the outer region 21c of the upper surface 21 of the base 20, as described later. Since the extension 82 of the case 80 protrudes above the outer peripheral edge of the top surface 21 of the base 20, the adhesive 90 is unlikely to leak to the outside of the case 80 beyond the extension 82. Furthermore, as described later, if the extension portion 82 of the case 80 is in contact with the outer surface 34 of the glove 30, the adhesive 90 protruding from the groove portion 22 is made by the base 20, the glove 30, and the case 80. The adhesive 90 is less likely to leak to the outside of the case 80 because it can be contained in the enclosed space 84. Therefore, the design of the lamp 1 is good. The glove 30 and the base 20 or the glove 30 and the case 80 can be bonded by the adhesive 90 that leaks into the space 84.
- the width W 3 of the outer region 21 c of the upper surface 21 of the base 20 (the upper edge of the outer wall surface 22 b of the groove 22 in the direction orthogonal to the lamp axis J
- the adhesive 90 is 2 mm or more, when the adhesive 90 protrudes from the groove 22, the adhesive 90 is easy to be held on the upper surface 21 of the base 20.
- the adhesive 90 for example, silicone, cement, epoxy adhesive or the like can be used.
- the lamp 1 according to the present embodiment has a structure in which the adhesive 90 does not easily leak to the outside of the case 80.
- the globe 30 is a shape for a G-shaped lamp having a so-called ball light bulb shape, and is extended to the upper end portion of the cylindrical portion 31 and the cylindrical portion 31 having a substantially cylindrical shape. And a spherical portion 32 having a substantially spherical shape.
- the globe 30 is not limited to the shape for the G-shaped lamp, and may be, for example, the shape for another lamp such as the A-shaped lamp, and the shape is totally different from the shape for the existing lamp Also good.
- the inner diameter and the outer diameter of the cylindrical portion 31 are designed according to the groove 22 provided on the upper surface 21 of the base 20, and the lower end of the cylindrical portion 31 is fitted into the groove 22. That is, the lower end portion of the cylindrical portion 31 is the opening end 33 of the glove 30.
- the spherical portion 32 has a substantially uniform thickness throughout. On the inner surface 35 of the spherical portion 32, a light diffusion film (not shown) for improving the light distribution characteristic is formed.
- the circuit unit 40 includes, for example, a substantially disk-shaped circuit board 41 and various electronic components 42 and 43 mounted on the circuit board 41, and is in a space surrounded by the circuit holder 60 and the insulating member 70. Circuit unit 40 is accommodated. There are electronic components other than those with reference numerals "42" and "43".
- the electrical wires 44 and 45 attached to the output terminal of the circuit unit 40 are electrically connected to the input terminal (not shown) of the LED module 10. Specifically, the respective electric wires 44, 45 pass through the through holes 73 provided in the insulating member 70 and the slits 26 provided in the base 20, and are led out to the upper surface 21 side of the base 20. It is connected to the input terminal of the LED module 10 through the connectors 46 and 47 attached to the ends of the wires 44 and 45.
- the electric wires 48 and 49 attached to the input terminals of the circuit unit 40 are electrically connected to the base 50.
- the electrical wiring 48 is led out of the through hole 63 provided in the small diameter portion 62 of the circuit holder 60 to the outside of the circuit holder 60, and connected to the shell portion 51 of the base 50. It is done.
- the electrical wiring 49 is led out of the lower side opening 64 of the small diameter portion 62 of the circuit holder 60 to the outside of the circuit holder 60, and is connected to the eyelet portion 52 of the base 50.
- each electric wiring 44, 45, 48, 49 is a lead wire by which insulation coating was carried out, for example.
- the base 50 is a so-called Edison-type base and is for receiving power from the socket of the lighting apparatus when the LED lamp 1 is attached to the lighting apparatus and turned on.
- the base 50 has a cylindrical shell 51 whose outer circumferential surface is an external thread, and an eyelet 52 attached to the shell 51 via an insulating material 53.
- the base 50 is not limited to the Edison type, and for example, a pin type (specifically, a G type such as GY or GX) may be used.
- the circuit holder 60 has, for example, a substantially cylindrical shape with both sides open, and is configured of a large diameter portion 61 and a small diameter portion 62. Most of the circuit unit 40 is accommodated in the large diameter portion 61 located on the upper side. On the other hand, the base 50 is externally fitted to the small diameter portion 62 located on the lower side, whereby the lower side opening 64 of the circuit holder 60 is closed.
- the circuit holder 60 is preferably made of, for example, an insulating material such as a resin.
- An insulating member 70 is attached to the large diameter portion 61 of the circuit holder 60.
- the circuit board 41 of the circuit unit 40 is held by the plurality of ribs 65 provided on the inner surface of the large diameter portion 61 and the plurality of ribs 74 provided on the insulating member 70, whereby the circuit holder 60 is held.
- the method of holding the circuit unit 40 by the circuit holder 60 may be, for example, a method using a screw, an adhesive, an engagement structure, or the like, or a method of combining and fixing a plurality of methods. good.
- the insulating member 70 is for insulating the circuit unit 40 and the base 20, and is formed of an insulating material such as a resin.
- the insulating member 70 includes a cylindrical portion 71 attached to the circuit holder 60 and a lid portion 72 closing the upper opening of the cylindrical portion 71.
- the lid portion 72 is disposed between the circuit unit 40 and the base 20. The insulation between the circuit unit 40 and the base 20 is secured.
- a substantially cylindrical recess 27 is provided substantially at the center of the lower surface 24 of the base 20, and the insulating member 70 is fitted in the recess 27.
- the outer diameter of the cylindrical portion 71 is slightly smaller than the inner diameter of the concave portion 27 of the base 20, but a plurality of ribs 71a are provided on the outer peripheral surface of the cylindrical portion 71 at intervals in the circumferential direction.
- a pair of protrusions 75 are provided on the upper surface of the lid 72 of the insulating member 70 in alignment with the positions of the slits 26 of the base 20, and the insulating members 70 are inserted by inserting the protrusions 75 into the slits 26 of the base 20. Positioning of the base 70 and the base 20 in the rotational direction about the lamp axis J is performed.
- the case 80 is, for example, a cylindrical shape which is open at both ends and reduced in diameter from the upper side to the lower side and is externally fitted to the base 20; And an extension 82 extending from the main body 81 so as to protrude above the outer peripheral edge of the upper surface 21 of the upper surface 21.
- a part of the globe 30, a part of the circuit unit 40, a part of the circuit holder 60, and the insulating member 70 are accommodated.
- the case 80 is attached to the base 20 by caulking, and more specifically, utilizing a plurality of recesses 29 provided at intervals along the circumferential direction on the side peripheral surface 28 of the base 20. It is attached by forming the caulking part 83 in the position corresponding to the recessed part 29. As shown in FIG.
- the side circumferential surface 28 of the base 20 and the inner surface 85 of the main body 81 of the case 80 are in contact with each other. Therefore, the heat of base 20 is conducted to case 80 as compared with the case where adhesives 904a and 904b are present between base 902 and case 903 as in the case of conventional lamp 900 shown in FIG. easy.
- the lower side area 28 a of the side peripheral surface 28 of the base 20 is tapered according to the shape of the inner surface 85 of the case 80. Since the lower side area 28 a is in surface contact with the inner surface 85 of the case 80, the heat conducted from the LED module 10 to the base 20 is more easily conducted to the case 80.
- the heat generated by the LED 12 is conducted mainly to the base 50 through the base 20 and the case 80 and further to the base 50 through the circuit holder 60, and from the base 50 through the socket of the lighting apparatus (not shown) Heat is dissipated to walls and ceilings.
- the case 80 is made of, for example, a metal material.
- a metal material for example, Al, Ag, Au, Ni, Rh, Pd, an alloy of two or more of them, an alloy of Cu and Ag, or the like can be considered.
- Such a metal material has good thermal conductivity, so the heat transmitted to the case 80 can be efficiently transmitted to the base 50 side.
- the material of case 80 is not limited to a metal, For example, resin with high heat conductivity, etc. may be sufficient.
- the extending portion 82 of the case 80 protrudes above the outer peripheral edge of the top surface 21 of the base 20.
- the light diffusion film formed on the inner surface 35 of the globe 30 is formed by, for example, a coating method, but the coating liquid tends to be accumulated on the inner surface 35 near the boundary 36 with the cylindrical part 31 in the spherical part 32. In such a case, the light diffusion film becomes thick and light unevenness easily occurs.
- the extension 82 of the case 80 protrudes above the outer peripheral edge of the upper surface 21 of the base 20 and the boundary 36 is accommodated in the case 80, the part where the light unevenness occurs may be concealed.
- the light distribution characteristic of the lamp 1 can be improved.
- the extending portion 82 of the case 80 is in contact with the outer surface 34 of the glove 30, the region 36 near the boundary can be completely covered by the case 80, so that the light distribution characteristic of the lamp 1 can be further enhanced. Is good.
- the lamp concerning the present invention was concretely explained based on an embodiment, the lamp concerning the present invention is not limited to the above-mentioned embodiment, In the range which does not deviate from the technical idea of the present invention suitably It may be modified.
- the materials, numerical values, and the like in the above-described embodiment merely exemplify preferable ones, and the present invention is not limited thereto.
- the structure of the package of the LED may be any structure such as a shell type, a surface mounted device (SMD) type, a chip on board (COB) type, or a power LED type.
- SMD surface mounted device
- COB chip on board
- the LED module may have the following configuration.
- FIG. 8 is a perspective view for explaining an LED module according to a modification.
- FIG. 9 is a plan view for explaining an LED module according to a modification. 8 shows the lamp in a state in which the globe is removed and the screws for fixing the LED module are also removed, and
- FIG. 9 shows the lamp in a state in which the fixing member for fixing the LED module is also removed.
- the lamp according to the modification differs from the lamp 1 according to the above-described embodiment in the configuration of the LED module and the mounting structure of the LED module.
- the other points are basically the same as those of the lamp 1 according to the above-described embodiment, and therefore the description thereof is omitted.
- symbol same as the said embodiment is used as it is.
- the LED module 110 is mounted at the center of the upper surface of the base 20, and as shown in FIG. 9, for example, a substantially square plate-shaped mounting substrate 111 and a mounting substrate 111. And a plurality of LEDs (not shown) mounted on the upper surface of the upper and the sealing member 113 covering the LEDs.
- the mounting substrate 111 is, for example, a metal base substrate consisting of a resin plate and a metal plate, and on the top surface, for example, a total of 72 GaN-based LEDs emitting blue light are arranged in a matrix of 12 rows and 6 rows. It is done.
- the sealing member 113 is formed of, for example, a transparent silicone resin mixed with phosphor particles for converting blue light into yellow light, and connects the pair of elongated frame portions 113a and the frame portions 113a. Twelve LEDs are respectively sealed in six case parts 113b arranged in equal intervals in a ladder shape including a plurality of long case parts 113b and 113c.
- the LED is sealed only in the six case parts 113b located near the center of the mounting substrate 111, and other case parts 113c and a pair of case parts The LED is not sealed in the frame portion 113a.
- the LED module 110 is connected to the connectors 46 and 47 attached to the ends of the electric wires 44 and 45 of the circuit unit 40, and as shown in FIG. 8, annular fixing of the LED module 110 and the connectors 46 and 47 from above
- the member 114 is put on and the LED module 110 is screwed to the base 20 together with the fixing member 114.
- the fixing member 114 is provided with a through hole 115 at a position communicating with the screw hole 21 a of the base 20, and a screw is penetrated through the through hole 115 and further screwed into the screw hole 21 a of the base 20. 110 is fixed.
- the present invention is applicable to LED lamps in general.
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Abstract
Description
以下、本実施の形態に係るランプについて、図面を参照しながら説明する。図1および図2は、本実施の形態に係るランプを示す断面図である。図3は、グローブを外した状態のランプを示す平面図である。図4は、グローブを外した状態のランプを示す斜視図である。図5は、グローブおよびLEDモジュールを外した状態のランプを示す斜視図である。なお、図1は、図3におけるA-A線に沿った断面図、図2は、図3におけるB-B線に沿った断面図である。
図1および図2に示すように、本実施の形態に係るランプ1は、所謂ボール形のLEDランプであって、LEDモジュール10と、LEDモジュール10が搭載された基台20と、LEDモジュール10の上方を覆うグローブ30と、LEDモジュール10を発光させるための回路ユニット40と、回路ユニット40と電気的に接続された口金50と、回路ユニット40が収容された回路ホルダ60と、基台20と回路ユニット40とを絶縁するための絶縁部材70と、回路ホルダ60の一部および基台20に外嵌されるケース80と、を備える。
図3に示すように、LEDモジュール10は、例えば、略方形板状の実装基板11と、実装基板11の上面に実装された複数の略直方体形状のLED12と、それらLED12を被覆する複数の長尺状の封止部材13とを有する。LED12は、実装基板11の上面にCOB(Chip on Board)技術を用いて実装されたものが好ましいが、SMD(Surface Mount Device)型のものを用いて実装されたものであっても良い。なお、本実施の形態では、半導体発光素子としてLEDを利用する例について説明するが、半導体発光素子は、例えば、LD(レーザダイオード)であっても良く、EL素子(エレクトリックルミネッセンス素子)であっても良い。
基台20は、略円板状であって、グローブ30の開口を塞ぐように配置されており、グローブ30側の主面である上面21の略中央に、LEDモジュール10が搭載されている。図2に示すように、LEDモジュール10の基台20への取り付けは、LEDモジュール10の実装基板11に設けられた貫通孔11aに貫通させたねじ14を、基台20の上面21に設けられたネジ穴21aにねじ込んで行なわれている。なお、LEDモジュール10は、接着剤や係合構造を利用して基台20に取り付けられていても良い。
図1および図2に示すように、グローブ30は、所謂ボール電球形状であるG形ランプ用の形状であって、略円筒状をした筒部31と、筒部31の上端部に延設された略球状の球状部32とを有する。なお、グローブ30は、G形ランプ用の形状に限定されず、例えば、A形ランプなどの他のランプ用の形状であっても良く、既存のランプ用の形状とは全く異なる形状であっても良い。
回路ユニット40は、例えば略円板状の回路基板41と、回路基板41に実装された各種の電子部品42,43とを有し、回路ホルダ60と絶縁部材70とで囲まれた空間内に回路ユニット40が収容されている。なお、電子部品は、符号「42」、「43」を付したもの以外も存在する。
口金50は、所謂エジソンタイプの口金であって、LEDランプ1が照明器具に取着されて点灯された際に、照明器具のソケットから電力を受けるためのものである。当該口金50は、筒状であって周面が雄ねじとなっているシェル部51と、シェル部51に絶縁材料53を介して装着されたアイレット部52とを有する。なお、口金50は、エジソンタイプに限定されず、例えば、ピンタイプ(具体的にはGY、GX等のGタイプ)を利用しても良い。
回路ホルダ60は、例えば、両側が開口した略円筒形状であって、大径部61と小径部62とで構成される。上方側に位置する大径部61には回路ユニット40の大半が収容されている。一方、下方側に位置する小径部62には口金50が外嵌されており、これによって回路ホルダ60の下方側開口64が塞がれている。回路ホルダ60は、例えば、樹脂などの絶縁性材料で形成されていることが好ましい。
絶縁部材70は、回路ユニット40と基台20とを絶縁するためのものであって、樹脂などの絶縁性材料で形成されている。絶縁部材70は、回路ホルダ60に取り付けられる筒部71と、当該筒部71の上方側開口を塞ぐ蓋部72とで構成され、蓋部72が回路ユニット40と基台20との間に配置され、回路ユニット40と基台20との絶縁を確保している。
図1および図2に示すように、ケース80は、例えば、両端が開口し上方から下方へ向けて縮径した円筒形状であって、基台20に外嵌された本体部81と、基台20の上面21における外周縁よりも上方に迫り出すように本体部81から延出した延出部82とを有する。ケース80の本体部81内には、基台20の他、グローブ30の一部と、回路ユニット40の一部と、回路ホルダ60の一部と、絶縁部材70とが収容されている。ケース80はカシメにより基台20に取り付けられており、具体的には、基台20の側周面28に周方向に沿って間隔を空けて設けられた複数の凹部29を利用して、それら凹部29に対応した位置にカシメ部分83を形成することによって取り付けられている。
以上、本発明に係るランプを実施の形態に基づいて具体的に説明してきたが、本発明に係るランプは、上記実施の形態に限定されず、本発明の技術的思想を逸脱しない範囲で適宜変更を加えたものであっても良い。例えば、上記実施の形態における材料、数値等は好ましいものを例示したに過ぎず、それらに限定されるものではない。
12 半導体発光素子
20 基台
21 上面
22 溝部
22a 半導体発光素子側の側壁面
22b 半導体発光素子とは反対側の側壁面
23 凹部
24 下面
25 孔部
30 グローブ
31 開口側の端部
80 ケース
81 本体部
82 延出部
90 接着剤
Claims (6)
- 光源としての半導体発光素子と、
上面に、前記半導体発光素子が搭載され、かつ、前記半導体発光素子を囲繞するように溝部が設けられた基台と、
前記基台側に開口を有し、前記半導体発光素子の上方を覆うように配置され、前記溝部内に前記開口側の端部を差し込んだ状態で前記溝部内に充填された接着剤によって前記基台に接着されたグローブと、
筒状であって、前記基台に外嵌された本体部と、前記基台の上面における外周縁よりも上方に迫り出すように前記本体部から延出した延出部とを有するケースと、
を備えることを特徴とするランプ。 - 前記ケースの延出部は前記グローブの外表面に当接されていることを特徴とする請求項1記載のランプ。
- 前記溝部の前記半導体発光素子側の側壁面は、前記溝部の前記半導体発光素子とは反対側の側壁面よりも上方に迫り出していることを特徴とする請求項1または2に記載のランプ。
- 前記溝部の前記半導体発光素子側の側壁面および前記半導体発光素子とは反対側の側壁面の少なくとも一方には凹部が設けられており、当該凹部に前記接着剤の一部が入り込んでいることを特徴とする請求項1から3のいずれかに記載のランプ。
- 前記基台の下面には孔部が設けられており、当該孔部が前記凹部と連通していることを特徴とする請求項4記載のランプ。
- 前記溝部は、少なくとも前記基台の上面付近において溝幅が上方に向け広がっていることを特徴とする請求項1から5のいずれかに記載のランプ。
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US20240068645A1 (en) * | 2023-04-24 | 2024-02-29 | Dongguan Huihuan Lighting Co., Ltd | Non-welded and anti-deformation lamp base and non-welded and anti-deformation light bulb |
US12078323B2 (en) * | 2023-04-24 | 2024-09-03 | Dongguan Huihuan Lighting Co., Ltd | Non-welded and anti-deformation lamp base and non-welded and anti-deformation light bulb |
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