WO2013124925A1 - ランプ - Google Patents
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- Publication number
- WO2013124925A1 WO2013124925A1 PCT/JP2012/006772 JP2012006772W WO2013124925A1 WO 2013124925 A1 WO2013124925 A1 WO 2013124925A1 JP 2012006772 W JP2012006772 W JP 2012006772W WO 2013124925 A1 WO2013124925 A1 WO 2013124925A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- circuit
- case
- guide member
- holder
- Prior art date
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Classifications
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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
-
- 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
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
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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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
- F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
-
- 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the present invention relates to a lamp, and more particularly to holding and storing a circuit unit.
- Such a lamp (hereinafter, referred to as "LED lamp”) generally has a cylindrical casing in which a light emitting unit in which a plurality of LEDs are mounted on one mounting substrate (“Exterior member 2" in Patent Document 1)
- the front side the main emission direction of the LED is taken as the front
- a base is attached to the rear side end of the case.
- a circuit unit in which various electronic components for lighting the LED are mounted on the circuit board is housed in the internal space of the case, which is mounted between the mounting substrate and the base, and the light emitted from the LED is The light is emitted to the outside through a glove attached to the front end of the housing so as to cover the front side.
- Patent Document 1 See Patent Document 1 and Non-Patent Document 1 (page 12)
- the circuit board is made longitudinally along the cylinder axis direction (the height direction of the lamp) of the case.
- the arrangement to arrange is adopted.
- Patent Document 2 the electronic components constituting the circuit unit include those susceptible to shock, and there is a risk that the electrical connection between the circuit unit and the base and the light emitting unit may be damaged by shock or vibration. Needs to fix the circuit unit.
- a pair of grooves are provided inside the housing in the direction along the cylinder axis from the viewpoint of ease of work and cost, and the grooves from the open end of the housing along the grooves
- a method is used in which a circuit board is inserted and both side ends of the circuit board are fitted in and fixed to a groove.
- JP 2006-313717 A Unexamined-Japanese-Patent No. 2010-40223
- an object of this invention is to provide the lamp
- a lamp according to the present invention includes a light emitting module as a light source, a plurality of electronic components for lighting the light emitting module, and a circuit unit having a circuit board on which the components are mounted; And a cylindrical case internally housing at least a portion of the unit, wherein the case is positioned within the socket of the lighting fixture when the lamp is mounted on the lighting fixture.
- the circuit board is inserted into the inside of the case from the opening and housed in the inside of the case in a posture along the cylinder axial direction of the case.
- the case is formed on the inner peripheral surface thereof with a first restricting member for restricting the movement of the circuit board in the insertion direction, and the thickness of the circuit board of the circuit board A second restricting member for restricting movement to both sides in the direction, and at least a part of which is disposed on the rear side in the insertion direction with respect to the second restricting member, and the circuit unit is inserted into the case; And a guide member for guiding the circuit unit to a position to be accommodated in the case by sliding contact with a part of one of the main surfaces of the circuit board, and the second regulation member is provided on the circuit board.
- the length in the insertion direction is shorter than the length in the insertion direction of the portion of the circuit board accommodated in the case, and the circuit board is inserted into the case from the first case portion side And the circuit board is inserted into the case from the side opposite to the first case portion. Case, and at least a portion of which is disposed in the first casing portion.
- the ratio of the electronic component mounting area of the circuit board can be increased.
- a guide member for guiding the circuit unit to the position where the circuit unit is to be accommodated is provided, so that the circuit unit can be easily inserted into the case.
- the guide member since the guide member contacts only one main surface of the circuit board, the electronic component and the guide member can be inserted into the case when the electronic component is mounted on the other main surface side of the circuit board. And do not interfere. Therefore, by providing the guide member, the ratio of the electronic component mounting area of the circuit board can be increased, and the effect of facilitating the insertion of the circuit unit into the case can be obtained.
- FIG. 5 is a cross-sectional view schematically showing a relationship. It is sectional drawing which shows schematic structure of the lamp
- FIG. 7B is a cross-sectional view schematically showing the positional relationship between the groove portion in the circuit holder and the guide member when viewed from the side. It is a figure which shows the positional relationship of the circuit board in the circuit holder of the lamp
- FIG. 5 is a cross-sectional view schematically showing a relationship. It is a figure which shows the positional relationship of the circuit board in the circuit holder of the lamp
- FIG. 5 is a cross-sectional view schematically showing a relationship.
- FIG. 7B is a cross-sectional view schematically showing the positional relationship between the groove portion in the circuit holder and the guide member when viewed from the side.
- FIG. 5 is a cross-sectional view schematically showing a relationship.
- FIG. 7B is a cross-sectional view schematically showing the positional relationship between the groove portion in the circuit holder and the guide member when viewed from the side.
- FIG. 5 is a cross-sectional view schematically showing a relationship.
- FIG. 1 It is a figure which shows the positional relationship of the circuit board in a circuit holder of a lamp
- FIG. 5 is a cross-sectional view schematically showing a relationship.
- FIG. 5 is a cross-sectional view schematically showing a relationship.
- FIG. 18 is an exploded perspective view of a circuit unit, a circuit holder, and a base according to Modification 10;
- FIG. 18 is a view showing a method of mounting a circuit unit according to Modification 10;
- FIG. 1 is an external perspective view showing a schematic configuration of the lamp 1 according to the first embodiment.
- FIG. 2 is a cross-sectional view of a plane orthogonal to the circuit board of the lamp 1.
- FIG. 3 is a cross-sectional view of a plane parallel to the circuit board of the lamp 1. In FIG. 3, illustration of various electronic components and wirings is omitted.
- the lamp 1 is an LED lamp as a substitute for an incandescent lamp, and a semiconductor light emitting module 10 as a light source and a semiconductor light emitting module 10 are mounted.
- Base 20 a globe 30 covering the semiconductor light emitting module 10, a circuit unit 40 for lighting the semiconductor light emitting module 10, a circuit holder 50 accommodating the circuit unit 40, and a case 60 covering the circuit holder 50
- a cap 70 electrically connected to the circuit unit 40, a beam splitter 80 for diffusing light emitted from the semiconductor light emitting module 10, and a lid 3 are provided.
- the alternate long and short dash line drawn along the vertical direction of the drawing shows the lamp axis J 1 of the lamp 1, the upper part of the drawing is the front of the lamp 1 and the lower part of the drawing is the rear of the lamp 1.
- the circuit unit 40 is not a cross section but a side surface.
- the semiconductor light emitting module 10 includes a mounting substrate 11, a plurality of semiconductor light emitting devices 12 as light sources mounted on the mounting substrate 11, and the semiconductor light emitting devices 12. And a sealing body 13 provided on the mounting substrate 11 so as to cover the
- the semiconductor light emitting element 12 is an LED
- the semiconductor light emitting module 10 is an LED module.
- the semiconductor light emitting element 12 may be, for example, an LD (laser diode). It may be a luminescent element).
- the mounting substrate 11 has a substantially annular element mounting portion 15 having a substantially circular hole portion 14 at the center, and a tongue piece portion extending from one point on the inner peripheral edge of the element mounting portion 15 toward the center of the hole portion 14 It consists of 16 and.
- a connector 17 is provided on the main surface on the rear side of the tongue piece 16, and the semiconductor light emitting module 10 and the circuit unit 40 are electrically connected via the wiring 41 and the connector 17.
- 32 semiconductor light emitting elements 12 are annularly mounted on the front surface of the element mounting unit 15. Specifically, 16 sets of semiconductor light emitting elements 12 arranged along the radial direction of the element mounting portion 15 are arranged in a circle at equal intervals along the circumferential direction of the element mounting portion 15 as one set of two semiconductor light emitting elements 12. It is arranged in a ring.
- the term "annular” includes not only annular, but also polygonal annular rings such as triangles, squares, and pentagons. Therefore, the semiconductor light emitting device 12 may be mounted in, for example, an elliptical or polygonal ring shape.
- the semiconductor light emitting elements 12 are sealed by a substantially rectangular parallelepiped sealing body 13 for each set. Therefore, the sealing body 13 is 16 pieces in all.
- the longitudinal direction of each sealing body 13 coincides with the radial direction of the element mounting portion 15, and is arranged radially around the lamp axis J1 when viewed from the front side along the lamp axis J1. ing.
- the sealing body 13 is mainly made of a translucent material, but when it is necessary to convert the wavelength of light emitted from the semiconductor light emitting element 12 into a predetermined wavelength, the wavelength of the light of the translucent material is used.
- the wavelength conversion material is mixed to convert the
- a silicone resin can be used as the translucent material
- phosphor particles can be used as the wavelength conversion material, for example.
- a semiconductor light emitting element 12 for emitting blue light and a sealing body 13 formed of a translucent material mixed with phosphor particles for wavelength converting blue light to yellow light are adopted.
- a part of the blue light emitted from the semiconductor light emitting element 12 is wavelength-converted to yellow light by the sealing body 13, and white light generated by mixing of unconverted blue light and converted yellow light is semiconductor light emission. It is emitted from module 10.
- the semiconductor light emitting module 10 may be, for example, a combination of a semiconductor light emitting element emitting ultraviolet light and phosphor particles of each color to be wavelength-converted into three primary colors (red, green, blue).
- a material including a semiconductor, a metal complex, an organic dye, a pigment, or the like, which absorbs light of a certain wavelength and emits light of a wavelength different from the absorbed light may be used.
- the semiconductor light emitting element 12 is disposed such that its main emission direction is forward, that is, parallel to the lamp axis J1.
- the base 20 is, for example, a substantially cylindrical shape having a substantially cylindrical through hole 21 and is disposed in a posture in which the cylinder axis coincides with the lamp axis J1. Therefore, as shown in FIG. 2 and FIG. 3, the through holes 21 penetrate in the front-rear direction, and the front surface and the rear surface of the base 20 are both substantially annular flat surfaces.
- the semiconductor light emitting module 10 is mounted on the front surface of the base 20, whereby the semiconductor light emitting elements 12 are arranged in a plane with their main emission directions directed forward.
- the semiconductor light emitting module 10 may be mounted on the base 20 by, for example, screwing, bonding, and engagement.
- the base 20 is made of, for example, a metal material, and as the metal material, for example, Al, Ag, Au, Ni, Rh, Pd, an alloy of two or more of them, an alloy of Cu and Ag, etc. can be considered. .
- a metal material has good thermal conductivity, so that the heat generated in the semiconductor light emitting module 10 can be efficiently conducted to the housing 60.
- the globe 30 in the present embodiment has a shape that simulates a bulb of an A-type bulb which is an incandescent bulb shape, and the opening side end 31 of the globe 30 is a base 20 and It is fixed to the case 60.
- globe 30 is not limited to the shape which imitated the bulb
- the lamp may be configured without a glove.
- the inner surface 32 of the globe 30 is subjected to a diffusion process for diffusing light emitted from the semiconductor light emitting module 10, for example, a diffusion process using silica, a white pigment, or the like.
- a diffusion process for diffusing light emitted from the semiconductor light emitting module 10, for example, a diffusion process using silica, a white pigment, or the like.
- the light incident on the inner surface 32 of the globe 30 passes through the globe 30 and is extracted to the outside of the globe 30.
- the circuit holder 50 includes the large diameter portion 52 and the small diameter portion 53, and accommodates the circuit unit 40 therein.
- the large diameter portion 52 and the small diameter portion 53 have, for example, a substantially cylindrical shape with both sides open, and are integrally connected with each other in the axial direction so that the axis of the cylinder and the lamp axis J1 coincide with each other. .
- Most of the circuit unit 40 is accommodated in the large diameter portion (second case portion) 52 positioned on the front side, and a portion of the circuit unit 40 is accommodated in the small diameter portion (first case portion) 53 positioned on the rear side.
- the small diameter portion 53 is a mouthpiece attachment portion to which a mouthpiece is attached, and the mouthpiece 70 is externally fitted to the small diameter portion 53, whereby the rear side opening 54 of the circuit holder 50 is closed.
- a plate-like guide member 91 elongated in the direction along the lamp axis J1 is provided.
- the guide member 91 receives the circuit unit 40 by sliding contact with the side end of the circuit board 42 on one main surface side of the circuit unit 40. Guide to the right position.
- a pair of plate members elongated in the direction along the lamp axis J1 are integrally provided on the inner circumferential surface of the small diameter portion 53 at predetermined intervals in parallel with each other.
- a groove (second regulating member) 92 is provided on the inner circumferential surface of the small diameter portion 53 at predetermined intervals in parallel with each other.
- the side end of the circuit board 42 of the circuit unit 40 is fitted in the groove 92, thereby restricting the movement of the circuit board 42 in the thickness direction to both sides.
- the width of the groove 92 (the length in the direction away from the inner circumferential surface of the circuit holder) is, for example, 2 [mm], but is not limited thereto.
- a through hole 56 is provided in the circuit holder 50 at a position corresponding to the tongue portion 16 of the semiconductor light emitting module 10.
- the tip of the tongue piece 16 is inserted into the circuit holder 50 through the through hole 56, and the connector 17 provided on the tongue piece 16 is located in the circuit holder 50.
- the circuit holder 50 is preferably formed of, for example, an insulating material such as a resin.
- the circuit holder 50 functions as the case 2 for housing the circuit unit 40.
- the circuit unit 40 is for lighting the semiconductor light emitting element 12, and includes a circuit board 42 and various electronic components 43 mounted on the circuit board 42.
- the circuit board 42 projects in the direction of projecting to the front side of the large portion 42 a accommodated in the large diameter portion 52, the small width portion 42 b accommodated in the small diameter portion 53, and the large portion 42 a. It consists of a front end 42 c which is extended and accommodated in the lid 58.
- the lengths in the width direction of the large portion 42a, the small width portion 42b, and the front side end portion 42c correspond to the size of the inner diameter of the large diameter portion 52, the small diameter portion 53, and the lid 58, respectively.
- a connection portion between the large portion 42a and the small width portion 42b is a shoulder portion 42d, and the shoulder portion 42d abuts against a stopper (first regulating member) 93 which is a step of the connection portion between the large diameter portion 52 and the small diameter portion 53.
- a stopper first regulating member
- the circuit board 42 is disposed such that its main surface is substantially parallel to the lamp axis J1. In this way, the circuit unit 40 can be stored more compactly in the circuit holder 50.
- the circuit unit 40 and the base 70 are electrically connected by electrical wires 45 and 46.
- the electrical wiring 45 is connected to the shell portion 71 of the base 70 through the through hole 51 provided in the circuit holder 50.
- the electrical wiring 46 is also connected to the eyelet portion 73 of the base 70 through the rear opening 54 of the circuit holder 50.
- a part of the circuit unit 40 is disposed in the through hole 21 of the base 20 and in the globe 30. By doing this, the space for housing the circuit unit 40 on the rear side of the base 20 can be reduced.
- the circuit unit 40 When the circuit unit 40 is accommodated in the circuit holder 50, the circuit unit 40 is inserted into the circuit holder 50 from the front side opening of the circuit holder 50 with the lid 82 removed.
- the housing 60 is, for example, a cylindrical member which is open at both ends and reduced in diameter from the front to the rear, or a bowl-shaped member having an opening at the bottom.
- the base 20 and the opening end 31 of the glove 30 are accommodated in the front end 62 of the housing 60, and the housing 60, the base 20 and the glove 30 are provided. Are fixed together, for example, by pouring an adhesive into the space enclosed by them.
- the housing 60 is made of, for example, a metal material, and as the metal material, for example, Al, Ag, Au, Ni, Rh, Pd, an alloy of two or more of them, or an alloy of Cu and Ag can be considered. . Since such a metal material has good thermal conductivity, the heat transmitted from the semiconductor light emitting module 10 to the housing 60 can be efficiently transmitted to the base 70 side.
- Base A base 70 is a member for receiving power from the socket of the lighting apparatus when the lamp 1 is attached to the lighting apparatus and turned on.
- the type of the base 70 is not particularly limited, but in the present embodiment, an E26 base which is an Edison type is used.
- the base 70 includes a shell portion 71 which has a substantially cylindrical shape and whose outer peripheral surface is an external thread, and an eyelet portion 73 attached to the shell portion 71 via an insulating portion 72.
- An insulating member 74 is interposed between the shell portion 71 and the housing 60.
- the beam splitter 80 has, for example, a bottomed cylindrical shape, and a substantially cylindrical main body portion 81 opened on both sides, and a front side surface of the main body portion 81.
- a cover 82 is provided and attached to the front end of the circuit holder 50.
- the lid member 82 has, for example, a bottomed cylindrical or cap shape, and is held by the main body 81 with the bottom facing forward on the front side of the large diameter portion 52 via the main body 81. The rear side opening of the diameter portion 52 and the main body portion 81 is closed.
- the main body portion 81 is made of a translucent material, and is disposed in front of the semiconductor light emitting module 10.
- the light emitted forward from the semiconductor light emitting element 12 and incident on the main body 81 is partially transmitted through the main body 81 and emitted forward as it is, and the remaining part is mirror finished It is reflected by the surface 88 obliquely backward away from the base 20.
- the lamp 1 has good light distribution characteristics even if the semiconductor light emitting device 12 having a narrow irradiation angle is used.
- the semiconductor light emitting element 12 is disposed in a ring shape and the outer peripheral surface 88 is also disposed in a ring shape correspondingly, the reflection to the oblique rear avoiding the base 20 is the entire outer circumference of the base 20 Occurs over the Therefore, good light distribution characteristics can be obtained over the entire circumference around the lamp axis J1.
- the main body portion 81 not only reflects a part of the light but also transmits the other part of the light, so shadowing by the main body portion 81 is less likely to occur, and the design when the lamp 1 is viewed from the front The nature is good.
- lid 82 is not limited to a cylindrical shape with a bottom or a cap, for example, It may be a cone, a polygon, or a polygon, and may have any shape as long as it does not block the light from the semiconductor light emitting module 10 transmitted through the beam splitter 80.
- the lid 82 is not essential, and the lid 82 may not be provided.
- FIG. 4 is a view showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder 50 of the lamp 1.
- FIG. 4A is a cutaway perspective view of the circuit holder.
- FIG. 4B is a view schematically showing the positional relationship between the circuit board in the circuit holder, the groove, and the guide member when viewed from the front side.
- FIG. 4C is a cross-sectional view schematically showing the positional relationship between the groove and the guide member in the circuit holder when viewed from the side. In FIG. 4C, the circuit board 42 is not shown.
- a pair of groove portions 92 are provided at opposing positions on the inner peripheral surface of the small diameter portion 53.
- the groove portion 92 is formed on the inner peripheral surface of the small diameter portion 53 in parallel with the direction along the lamp axis J1 with a pair of plate members 92a and 92b spaced apart from each other by a predetermined distance (a distance substantially equal to the thickness of the circuit board 42). It is erected and formed.
- a plate-like guide member 91 which is long in the direction along the lamp axis J1 is disposed in opposition to each other.
- the inner surface of the plate-like member 92a and one main surface of the guide member 91 are located on the same plane parallel to the lamp axis J1, and the plate-like member 92a and the guide member 91 with respect to the plane are Located on the same side.
- the circuit board 42 when inserting the circuit unit 40 into the inside from the front side opening of the circuit holder 50, the circuit board 42 is moved by sliding the side edge of the circuit board 42 along the guide member 91, so that the circuit board 42 is grooved 92. It is guided to be fitted into the groove 92. At this time, the backward movement of the circuit unit 40 in the insertion direction (the insertion direction of the circuit board 42) is restricted by the stopper 93, and the movement of the circuit board 42 in the width direction is restricted by the groove 92.
- Unit 40 is fixedly accommodated in circuit holder 50.
- the circuit board 42 can be easily fitted into the groove 92.
- the circuit board 42 is shown at a central position passing through the cylinder axis of the circuit holder 50 in order to make the illustration easy to understand, but in practice
- the circuit holder 50 is disposed at a position offset in the radial direction from the cylinder axis of the circuit holder 50 (hereinafter, the same applies to each drawing after FIG. 6).
- the guide member 91 is disposed so as to be in contact with the main surface of the circuit board 42 farther from the cylinder axis.
- the groove 92 is in contact with both main surfaces of the circuit board 42, and therefore the electronic component can not be mounted in the region in sliding contact with the groove 92 of the circuit board 42. That is, when the circuit board 42 is fitted into the groove 92, the area where the electronic component can not be mounted increases as the distance in sliding contact with the groove 92 increases.
- the groove portion 92 is provided adjacent to the front opening of the large diameter portion, the side edge portion of the circuit board 42 extends substantially the entire length in the insertion direction when the circuit unit 40 is inserted. As a result, the electronic components can not be mounted over substantially the entire length of the circuit board 42 in the insertion direction (in this case, the front-rear direction).
- the groove 92 is provided only in the small diameter portion 53. Therefore, the circuit board 42 is in sliding contact with the groove 92 by a length substantially equal to the length of the groove 92 on the front end side (rear side) in the insertion direction, and the groove 92 is disposed closer to the front side in the insertion direction Compared to the case where there is an electronic component mounting area on the circuit board 42, the ratio of the electronic component mounting area can be increased.
- the circuit board 42 is in sliding contact with the guide member 91, but the guide member 91 is in sliding contact with only one main surface of the circuit board 42. There is no sliding contact with the surface. Therefore, a surface mount type electronic component can be mounted on the main surface of the circuit board 42 not in sliding contact with the guide member 91, and the ratio of the electronic component mounting area can be increased.
- the circuit unit 40 is configured to be inserted into the circuit holder 50 from the front side of the circuit holder 50.
- the way in which the circuit unit is accommodated in the circuit holder is not limited to this.
- it may be inserted into the circuit holder from the rear side of the circuit holder.
- FIG. 5 is a cross-sectional view showing a schematic configuration of the lamp 100.
- the lamp 100 includes the semiconductor light emitting module 110, the base 120, the globe 130, the circuit unit 140, the circuit holder 150, the housing 160, the base 70, and the like.
- the basic configuration is the same as the lamp 1 except that the lamp 100 differs from the lamp 1 in the following points.
- the lamp 100 does not have a beam splitter.
- the circuit holder 150 has a bottomed cylindrical shape and does not have a lid.
- the base 120 does not have a through hole at the center, through which the circuit holder is inserted, it has a through hole 121 for passing a wire electrically connecting the circuit unit 140 and the semiconductor light emitting module 110.
- the semiconductor light emitting module 110 is disposed in the center of the mounting substrate instead of being annularly disposed on the mounting substrate 111.
- a part of the circuit holder 150 is the case holding portion 153, and the case holding portion 153 connects the case 160 and the circuit holder 150. In addition to the role of securing each other, it also plays a role of ensuring electrical insulation between the housing 160 and the base 70.
- FIG. 6 is a view showing the positional relationship between the circuit board 142, the groove (second regulating member) 192, and the guide member 191 in the circuit holder 150 of the lamp 100.
- FIG. 6A is a view schematically showing the positional relationship between the circuit board in the circuit holder, the groove and the guide member when viewed from the front side.
- FIG. 6B is a cross-sectional view schematically showing the positional relationship between the groove portion 192 and the guide member 191 in the circuit holder 150 when viewed from the side.
- the circuit holder 150 does not distinguish between the front part 151, the rear part 152, and the housing holding part 153, and is illustrated as a continuous cylindrical body having the same diameter. ing. In FIGS. 6A and 6B, the circuit board 142 is not shown.
- the guide member 191 displays the width and thickness larger than the groove 192 so as to be easily identified when viewed from the front side, it does not necessarily indicate the actual size relationship between the guide member 191 and the groove 192. is not.
- the width and thickness of the guide member 191 and the groove 192 may be the same or different.
- the lamp 100 is mainly configured of the semiconductor light emitting module 110, the base 120, the globe 130, the circuit unit 140, the circuit holder 150, and the base 70, as the lamp 1 in the first embodiment.
- the circuit holder 150 has a housing holding portion 153 for holding the housing 160, and the front portion 151 (corresponding to the large diameter portion 52 in the lamp 1) housed inside the housing 160;
- the inner diameter of the rear portion 152 (corresponding to the small diameter portion 53 of the lamp 1), which is the base attachment portion to which is attached, and the inside diameter of the housing holding portion 153 are substantially the same.
- the front portion 151 has a bottomed cylindrical shape in which a cylindrical tubular portion 151a and a disk-like lid portion 151b closing the front side opening of the tubular portion 151a are integrally formed.
- the rear portion 152 corresponds to the small diameter portion 53 of the lamp 1, and the base 70 is externally fitted.
- the circuit unit 140 is accommodated over substantially the entire length of the circuit holder 150 in the front-rear direction.
- the case holding portion 153 includes a connecting portion 153a for connecting the front portion 151 and the rear portion 152, and a holding groove 153b formed on the outside thereof and to which the case 160 is attached. The rear end of the case 160 is inserted into the holding groove 153 b and fixed by an adhesive.
- a pair of grooves 192 is formed in parallel with the lamp axis J2 on the inner peripheral surface of the front side portion including the front side end of the front portion 151, and the circuit board 142 of the circuit unit 140 is fitted in the grooves 192 Thus, the circuit unit 140 is held inside the circuit holder 150.
- a guide member 191 is continuously formed on the inner circumferential surface of the front portion 151, the case holding portion 153, and the rear portion 152 on the rear side adjacent to the groove portion 192.
- a shoulder 42d like the circuit board 42 in the first embodiment is not formed on the circuit board 142 of the circuit unit 140, and the side surface of the circuit board 142 is straight.
- the circuit unit 140 is inserted into the circuit holder 150 while being slid along the guide member 191 from the rear opening 154 of the circuit holder 150, and both side edges of the front end of the circuit board 142 After fitting the portion into the groove portion 192, the base 70 may be attached to the rear portion 152.
- the movement of the circuit unit 140 in the insertion direction (the insertion direction of the circuit board 142) is locked by the lid portion 151b. That is, a portion corresponding to the gap of the groove portion 192 in the inner surface of the lid portion 151 b is the stopper (first regulating member) 193.
- the groove portion 192 may be formed such that the groove width becomes gradually narrower as the front end thereof goes to the front side.
- the front end of the circuit board 142 is firmly fitted into the narrowed portion of the groove 192, and the circuit unit 140 is more stable. Will be held by In this case, the part holding the circuit board 142 on the inner surface of the groove 192 plays the role of the stopper 193.
- the stopper 193 is integrally formed with the groove 192, and the stopper 193 is continuously provided adjacent to the groove 192, but the invention is not limited thereto.
- it may be provided adjacent (spaced) with a space between the stopper 193 and the groove portion 192.
- the size of the space is not particularly limited.
- the groove portion 192 is provided far away from the stopper 193, the area of the circuit substrate 142 in sliding contact with the groove portion 192 is increased accordingly. It is better that 192 and stopper 193 be as close as possible.
- adjacent refers to both the case where the stopper 193 and the groove 192 are continuously provided and the case where the stopper 193 and the groove 192 are spaced apart and close to each other. It is used in the sense of including.
- the shape of the cylinder part 151a is not restricted to a cylinder.
- the cross section may be a cylindrical shape having a polygonal shape, or the cross section may have an irregular shape such as a heart shape.
- the groove portion 192 and the guide member 191 need to be formed so that the circuit unit 140 can be smoothly inserted into the circuit holder 150.
- the groove portion 192 is formed at the front end of the front portion 151. Therefore, the circuit board 142 is in sliding contact with the groove portion 192 by a length substantially equal to the length of the groove portion 192 at the front end side (the front side) in the insertion direction, and the groove portion 192 in the insertion direction Compared to the case where the electronic component is disposed, the area where the electronic component can not be mounted on the circuit board 142 can be reduced, and the ratio of the electronic component mounting area can be increased.
- the circuit board 142 when the circuit unit 140 is inserted into the circuit holder 150, the circuit board 142 is in sliding contact with the guide member 191, but the guide member 191 is in sliding contact with only one main surface of the circuit board 142. There is no sliding contact with the surface. Therefore, a surface mount type electronic component can be mounted on the main surface of the circuit board 142 not in sliding contact with the guide member 191, and the ratio of the electronic component mounting area can be increased.
- the mounting efficiency of the electronic component on the circuit board can be improved, and the operation of fitting the circuit board 142 into the groove portion 192 by the guide member is easily performed. be able to.
- the circuit holder 150 functions as a case 102 for housing the circuit unit 140.
- the groove 92 and the guide member 91 are formed on both sides of the inner peripheral surface of the circuit holder, but the invention is not limited thereto.
- FIG. 7 is a view showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder 250 in the third embodiment.
- FIG. 7A is a cutaway perspective view of the circuit holder 250.
- FIG. 7B is a view schematically showing the positional relationship between the circuit board 42 in the circuit holder 250, the groove 92, and the guide member 91 when viewed from the front side.
- FIG. 7C is a cross-sectional view schematically showing the positional relationship between the groove 92 and the guide member 91 in the circuit holder 250 when viewed from the side. In FIG. 7C, the circuit board 42 is not shown.
- grooves 92 are formed on both sides of the inner peripheral surface of the small diameter portion 253 of the circuit holder 250, but a guide is formed on the inner peripheral surface of the large diameter portion 252.
- the member 91 is formed only on one side.
- the guide member serving as a guide for inserting the circuit unit into the circuit holder is provided on one side, so that when the circuit unit is inserted, the guide of the both side edges in the width direction of the circuit board Since the side edge on which the member is provided does not require much attention to position control, the operation is easier as compared to the case where no guide member is provided.
- the circuit holder 250 performs the same function as the case 2 in the first embodiment.
- the configuration of the third embodiment can be applied to the configuration of the second embodiment.
- FIG. 8 is a view showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder 350 according to the fourth embodiment.
- FIG. 8A schematically shows the positional relationship between the circuit board 142 in the circuit holder 350, the groove portion 192, and the guide member 191 when viewed from the front side.
- FIG. 8B is a cross-sectional view schematically showing the positional relationship between the groove portion 192 and the guide member 191 in the circuit holder 350 when viewed from the side. In FIG. 8B, illustration of the circuit board 142 is omitted.
- the groove portions 192 are respectively positioned at positions corresponding to both side edges in the width direction of the circuit board 142.
- the guide member 191 is provided only on one side. Also in this case, when the circuit unit 140 is inserted, even if attention is not paid to the control of the position of the side edge on which the guide member is provided among the side edges in the width direction of the circuit board 142 Because it is good, the operation is easy as compared with the case where there is no guide member at all.
- the circuit holder 350 functions as the case 102 in the second embodiment.
- FIG. 9 is a view showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder 450 in the fifth embodiment.
- FIG. 9A is a cutaway perspective view of the circuit holder 450.
- FIG. 9B is a view schematically showing the positional relationship between the circuit board 42 in the circuit holder 450, the groove 92, and the guide member 91 when viewed from the front side.
- FIG. 9C is a cross-sectional view schematically showing the positional relationship between the groove 92 and the guide member 91 in the circuit holder 450 when viewed from the side. In FIG. 9C, the circuit board 42 is not shown.
- guide members 91 are formed on both sides of the inner peripheral surface of the large diameter portion 452 of the circuit holder 450, but a groove portion is formed on the inner peripheral surface of the small diameter portion 453. 92 are formed only on one side. Also in this case, the operation of inserting the circuit unit is facilitated by providing the guide members on both sides as a reference when inserting the circuit unit into the circuit holder.
- the groove 92 is provided only on one side, the side edge of the circuit board on the side where the groove 92 is not provided is the guide member 91 among the movement in the thickness direction of the circuit board by the guide member 91. Movement in the direction of is restricted. Thus, the movement of the circuit board in the thickness direction is restricted to some extent, and the circuit unit 40 is accommodated relatively stably in the circuit holder 450.
- the circuit holder 450 performs the same function as the case 2 in the first embodiment.
- the configuration of the fifth embodiment can be applied to the configuration of the second embodiment.
- FIG. 10 is a view showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder 550 according to the sixth embodiment.
- FIG. 10A is a diagram schematically showing the positional relationship between the circuit board 142 in the circuit holder 550, the groove portion 192, and the guide member 191 when viewed from the front side.
- FIG. 10B is a cross-sectional view schematically showing the positional relationship between the groove portion 192 and the guide member 191 in the circuit holder 550 when viewed from the side. In FIG. 10 (b), the circuit board 142 is not shown.
- the guide members 191 are at positions corresponding to both side edges in the width direction of the circuit board 142.
- the groove part 192 is provided only in one side.
- the guide members 191 serving as a guide for inserting the circuit unit 140 into the circuit holder 550 are provided on both sides, so the operation of inserting the circuit unit 140 is easy.
- the groove portion 192 is provided only on one side, the side edge portion of the circuit board 142 on the side where the groove portion 192 is not provided is a guide of the movement of the circuit board 142 in the thickness direction by the guide member 191. Movement in the direction towards the member 191 is restricted. Thereby, the movement of the circuit board 142 in the thickness direction is restricted to some extent, and the circuit unit 140 is accommodated relatively stably in the circuit holder 550.
- the circuit holder 550 performs the same function as the case 102 in the second embodiment.
- FIG. 11 is a view showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder 650 in the seventh embodiment.
- FIG. 11A is a cutaway perspective view of the circuit holder 650.
- FIG. 11B is a view schematically showing the positional relationship between the circuit board 42 in the circuit holder 650, the groove 92, and the guide member 91 when viewed from the front side.
- FIG. 11C is a cross-sectional view schematically showing the positional relationship between the groove 92 and the guide member 91 in the circuit holder 650 when viewed from the side. In FIG. 11C, the circuit board 42 is not shown.
- a guide member 91 is formed on one side only on the inner peripheral surface of the large diameter portion 652 of the circuit holder 650, and a groove portion is formed on the inner peripheral surface of the small diameter portion 653. 92 are formed only on one side.
- the guide member serving as a guide for inserting the circuit unit into the circuit holder is provided on one side, so that when the circuit unit 40 is inserted, both side edges in the width direction of the circuit board 42 are Among them, the side edge on which the guide member 91 is provided does not have to pay much attention to the control of the position, so the work is easier compared to the case where the guide member 91 is not provided at all.
- the groove 92 is provided only on one side, the groove 92 restricts the movement of the side edge of the circuit board 42 on the side on which the groove 92 is provided to both sides in the thickness direction of the circuit board 42.
- the movement of the circuit board in the thickness direction is restricted to some extent, and the circuit unit 40 is accommodated relatively stably in the circuit holder 650.
- the circuit holder 650 performs the same function as that of the case 2 in the first embodiment.
- the configuration of the seventh embodiment can be applied to the configuration of the second embodiment.
- FIG. 12 is a view showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder 750 according to the seventh embodiment.
- FIG. 12A is a view schematically showing the positional relationship between the circuit board 142 in the circuit holder 750, the groove portion 192, and the guide member 191 when viewed from the front side.
- FIG. 12B is a cross-sectional view schematically showing the positional relationship between the groove portion 192 and the guide member 191 in the circuit holder 750 when viewed from the side. In FIG. 12 (b), the circuit board 142 is not shown.
- the guide member 191 and the groove portion 192 have two side edges in the width direction of the circuit board 142. It is provided only at the position corresponding to one side. Also in this case, when the circuit unit 140 is inserted, even if attention is not paid to the control of the position of the side edge on which the guide member is provided among the side edges in the width direction of the circuit board 142 Because it is good, the operation is easy as compared with the case where there is no guide member at all.
- the groove portion 192 is provided only on one side, the groove portion 192 restricts the movement of the side edge portion of the circuit board 142 on the side where the groove portion 192 is provided to both sides in the thickness direction of the circuit board 142 The movement in the thickness direction of the circuit board 142 is restricted to some extent, and the circuit unit 140 is accommodated relatively stably in the circuit holder 750.
- the circuit holder 750 performs the same function as the case 102 in the second embodiment.
- the groove may be provided in the insulating portion inside the mouthpiece.
- FIG. 13 is a view showing the positional relationship between the circuit board 842, the groove portion 892 and the guide member 891 in the case 802 in the ninth embodiment.
- FIG. 13A is a cut-away perspective view of the case 802.
- FIG. 13B is a view schematically showing the positional relationship between the circuit board 842 in the case 802, the groove 892, and the guide member 891 when viewed from the front side.
- FIG. 13C is a cross-sectional view schematically showing the positional relationship between the groove 892 and the guide member 891 in the case 802 when viewed from the side.
- the circuit board 842 is not shown in FIG. 13C, the rear end of the circuit board 842 has a shape extending to a length reaching the insulating portion 872 of the base 870.
- the case 802 includes the circuit holder 850 and the base 870, the small diameter portion 853 of the circuit holder 850 and the base 870 constitute a first case portion, and the large diameter portion 852 of the circuit holder 850 is It is a second case section.
- grooves 892 are formed on both sides of the insulating portion 872 inside the base 870. Further, on the inner peripheral surface of the large diameter portion 852 of the circuit holder 850, guide members 891 are formed on both sides. Also in this case, the operation of inserting the circuit unit is facilitated by providing the guide members on both sides as a reference when inserting the circuit unit into the circuit holder.
- the groove portion 892 in the insulating portion 872 inside the base 870 the area of the portion where the circuit board 842 and the groove portion 892 come in sliding contact can be made extremely small, and the ratio of the electronic component mounting area is increased. It can be done.
- the area on the circuit board 842 where the electronic components can be mounted is enlarged in the portion housed inside the base 870, and accordingly, the electronic components housed in the large diameter portion 852 of the circuit holder 850 can be reduced.
- the circuit holder can be miniaturized to contribute to the miniaturization of the lamp.
- the circuit holder 850 and the base 870 constitute a case 802.
- the case 802 fulfills the function of housing the circuit unit, as in the case 2 in the first embodiment.
- the structure of 3rd Embodiment is also applicable in the structure which provided the groove part in the insulation part inside the nozzle
- FIG. 14 is a view showing the positional relationship between the circuit board 842, the groove portion 892, and the guide member 891 in the case 902 in the tenth embodiment.
- FIG. 14A is a cut-away perspective view of the case 902.
- FIG. 14B is a view schematically showing the positional relationship between the circuit board 842 in the case 902, the groove 892, and the guide member 891 when viewed from the front side.
- FIG. 14C is a cross-sectional view schematically showing the positional relationship between the groove 892 and the guide member 891 in the case 902 when viewed from the side.
- the circuit board 842 is not shown.
- the case 902 includes the circuit holder 950 and the base 870, the small diameter portion 953 of the circuit holder 950 and the base 870 constitute a first case portion, and the large diameter portion 952 of the circuit holder 950 is It is a second case section.
- grooves 892 are formed on both sides of the insulating portion 872 in the base 870.
- a guide member 891 is formed on one side on the inner peripheral surface of the large diameter portion 852 of the circuit holder 850.
- the guide member serving as a guide for inserting the circuit unit into the case 902 is provided on one side, so that when the circuit unit 840 is inserted, both side edges in the width direction of the circuit board 842 are Among them, the side edge on which the guide member 891 is provided does not have to pay much attention to position control, so the work is easier compared to the case where no guide member is provided.
- the groove portion 892 in the insulating portion 872 inside the base 870 the area of the portion where the circuit board 842 and the groove portion 892 come in sliding contact can be made extremely small, and the ratio of the electronic component mounting area is increased. It can be done.
- the area on the circuit board 842 on which the electronic components can be mounted is expanded in the portion housed inside the base, and the electronic components housed in the large diameter portion 852 of the circuit holder 850 can be reduced accordingly.
- the circuit holder can be miniaturized to contribute to the miniaturization of the lamp.
- the circuit holder 950 and the base 870 constitute a case 902.
- the case 902 has a function of accommodating the circuit unit, as in the case 2 in the first embodiment.
- the configuration of the fifth embodiment can also be applied to the configuration in which the groove portion is provided in the insulating portion inside the spinneret.
- FIG. 15 is a view showing the positional relationship between the circuit board 842, the groove portion 892 and the guide member 891 in the case 1002 in the eleventh embodiment.
- FIG. 15 (a) is a cut-away perspective view of the case 1002.
- FIG. 15B is a view schematically showing the positional relationship between the circuit board 842 in the case 1002, the groove 892, and the guide member 891 when viewed from the front side.
- FIG. 15C is a cross-sectional view schematically showing the positional relationship between the groove 892 and the guide member 891 in the case 1002 when viewed from the side.
- the case 1002 includes the circuit holder 1050 and the base 1070.
- the small diameter portion 1053 and the base 1070 of the circuit holder 1050 constitute a first case portion, and the large diameter portion 1052 of the circuit holder 1050 is. It is a second case section.
- a groove 892 is formed on one side of the insulating portion 1072 inside the die 1070.
- guide members 891 are formed on both sides of the inner peripheral surface of the large diameter portion 1052 of the circuit holder 1050. Also in this case, the guide members 891 serving as a guide for inserting the circuit unit into the case 1002 are provided on both sides, which facilitates the work when inserting the circuit unit 840.
- the groove 892 is provided on one side of the insulating portion 1072 in the base 1070, so that the area of the portion where the circuit board 842 and the groove 892 come in sliding contact can be made extremely small, and the percentage of the electronic component mounting area Can be increased.
- the area on the circuit board 842 where the electronic components can be mounted is enlarged in the portion housed inside the die, and the number of electronic components housed in the large diameter portion 1052 of the circuit holder 1050 can be reduced accordingly.
- the circuit holder can be miniaturized to contribute to the miniaturization of the lamp.
- the groove portion 892 is provided only on one side, the side edge portion of the circuit board on the side where the groove portion 892 is not provided is the guide member 891 among the movements in the thickness direction of the circuit board by the guide member 891. Movement in the direction of is restricted. Thereby, the movement in the thickness direction of the circuit board is restricted to a certain extent, and the circuit unit 840 is accommodated relatively stably in the case 1002.
- the circuit holder 1050 and the base 1070 constitute a case 1002.
- the case 1002 fulfills the function of housing the circuit unit, as in the case 2 in the first embodiment.
- the configuration of the seventh embodiment can also be applied to a configuration in which the groove portion is provided in the insulating portion inside the spinneret.
- FIG. 16 is a view showing the positional relationship between the circuit board 842, the groove portion 892 and the guide member 891 in the case 1102 in the twelfth embodiment.
- FIG. 16A is a cut-away perspective view of the case 1002.
- FIG. 16B is a diagram schematically showing the positional relationship between the circuit board 842 in the case 1102, the groove 892, and the guide member 891 when viewed from the front side.
- FIG. 16C is a cross-sectional view schematically showing the positional relationship between the groove 892 and the guide member 891 in the case 1102 when viewed from the side.
- the case 1102 includes the circuit holder 1150 and the base 1070.
- the small diameter portion 1153 and the base 1070 of the circuit holder 1150 constitute a first case portion, and the large diameter portion 1152 of the circuit holder 1150 is. It is a second case section.
- a guide member 891 is formed only on one side on the inner peripheral surface of the large diameter portion 1152 of the circuit holder 1150, and a groove is formed in the insulating portion 1072 inside the mouthpiece 1070. 892 is formed only on one side. Also in this case, the guide member 891 serving as a guide for inserting the circuit unit 840 into the case 1102 is provided on one side, so that both side edges in the width direction of the circuit board 842 when the circuit unit 840 is inserted. Since it is not necessary to pay much attention to position control for the side edge of the portion where the guide member 891 is provided, the operation is easier compared to the case where no guide member is provided at all. .
- the groove 892 is provided only on one side, the groove 892 restricts the movement of the circuit board 842 in the thickness direction of the side edge of the circuit board 842 on the side where the groove 892 is provided.
- the movement in the thickness direction of the circuit board 842 is restricted to some extent, and the circuit unit 840 is accommodated relatively stably in the case 1102.
- the groove 892 is provided on one side of the insulating portion 1072 in the base 1070, so that the area of the portion where the circuit board 842 and the groove 892 come in sliding contact can be made extremely small, and the percentage of the electronic component mounting area Can be increased.
- the area on the circuit board 842 where the electronic components can be mounted is enlarged in the portion housed inside the die, and the number of electronic components housed in the large diameter portion 1152 of the circuit holder 1150 can be reduced accordingly.
- the circuit holder can be miniaturized to contribute to the miniaturization of the lamp.
- the circuit holder 1150 and the base 1070 form a case 1102.
- the case 1102 performs the function of accommodating the circuit unit, as in the case 2 in the first embodiment.
- the groove portion has a shape in which the pair of plate members is provided upright on the inner peripheral surface of the circuit holder, but the present invention is not limited to this.
- the groove may be formed as a recess (slit) elongated in the direction along the lamp axis formed on the inner peripheral surface of the circuit holder.
- a part of the inner peripheral surface of the circuit holder may be bulged inward, and a recess (slit) in the direction along the lamp axis may be formed in the bulged portion, and the side end of the circuit board is engaged It may be any shape as long as it is possible.
- FIGS. 17 to 23 are diagrams showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder according to the modification of the first embodiment.
- (a) schematically shows the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder when viewed from the front side, and (b) is viewed from the side.
- It is sectional drawing which represents typically the positional relationship of the groove part 92 and the guide member 91 in the circuit holder in a case.
- the circuit board 42 is not shown.
- the arrow has shown the insertion direction of the circuit board. The same applies to FIGS. 24 to 68 below.
- FIGS. 24 to 27 are diagrams showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder according to the modification of the second embodiment.
- (a) is a view schematically showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder when viewed from the front side, and (b) is viewed from the side
- the circuit board 142 is not shown.
- FIGS. 28 to 31 are views showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder according to the modification of the third embodiment.
- (a) schematically shows the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder when viewed from the front side, and (b) is viewed from the side.
- the circuit board 42 is not shown.
- FIGS. 32 to 34 are diagrams showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder according to the modification of the fourth embodiment.
- (a) is a view schematically showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder when viewed from the front side, and (b) is viewed from the side
- the circuit board 142 is not shown.
- FIGS. 35 to 45 are diagrams showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder according to the modification of the fifth embodiment.
- (a) schematically shows the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder when viewed from the front side, and (b) is viewed from the side.
- the circuit board 42 is not shown.
- FIGS. 46 to 56 are views showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder according to the modification of the sixth embodiment.
- (a) is a view schematically showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder when viewed from the front side, and (b) is viewed from the side
- the circuit board 142 is not shown.
- FIGS. 57 to 64 are views showing the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder according to the modification of the seventh embodiment.
- (a) schematically shows the positional relationship between the circuit board 42, the groove 92, and the guide member 91 in the circuit holder when viewed from the front side, and (b) is viewed from the side.
- the circuit board 42 is not shown.
- FIGS. 65 to 68 are diagrams showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder according to the modification of the eighth embodiment.
- (a) is a view schematically showing the positional relationship between the circuit board 142, the groove portion 192, and the guide member 191 in the circuit holder when viewed from the front side, and (b) is viewed from the side
- the circuit board 142 is not shown.
- FIG. 69 is an exploded perspective view of the circuit unit 1240, the circuit holder 1250, and the base 1270 in this modification.
- the circuit board 1242 of the circuit unit 1240 is provided with a board slit 1242 e that cuts away from one side end of the circuit board 1242 toward the center of the circuit board.
- An electrode pad 1242 f electrically connected to a wiring pattern (not shown) forming a part of the power supply circuit is provided on the outer periphery of the tip of the substrate slit 1242 e.
- the circuit board 1242 is formed of an elongated metal plate and along the normal direction of the circuit board 42 on both sides in the thickness direction of the circuit board 42 (that is, the circuit is accommodated in the circuit holder 1250)
- a conductive plate 1245 is provided which extends in a direction approaching the inner circumferential surface of the holder 1250.
- the conductive plate 1245 has an elongated plate-like main piece 1245a, a bending piece 1245b formed by bending in a cross section at both ends in the longitudinal direction of the main piece 1245a, and a longitudinal direction of the main piece 1245a And a mounting portion 1245c bent in a C-shaped cross section disposed at a position shifted to one end side from the central portion.
- the conductive plate 1245 is mounted on the circuit board 1242 by inserting the conductive plate 1245 up to the tip of the substrate slit 1242e while holding the outer peripheral portion of the substrate slit 1242e of the circuit board 1242 in the thickness direction of the circuit board 1242. To be worn. At this time, the attachment portion 1245 c of the conductive plate 1245 contacts the electrode pad 1242 f of the circuit board 1242.
- a conductive pin 1246 extending vertically from the circuit board 1242 and then bent or curved and extending backward is provided.
- the conductive pin is made of, for example, a conductive member such as metal.
- a pair of guide members 1291 is provided on the inner peripheral surface of the large diameter portion 1252 of the cylindrical circuit holder 1250.
- the guide member 1291 has the same configuration as the guide member 91 in the lamp 1 according to the first embodiment, and performs the same function.
- the small diameter portion 1253 is provided with a pair of slits 1253a cut in the forward direction from the rear end portion 1242g of the circuit holder 1250 on both sides of the cylindrical axis of the circuit holder 1250.
- FIG. 70 (a) and 70 (b) are diagrams showing how the circuit unit 1240 is attached to the circuit holder 1250 in a state where the base 1270 is attached.
- FIG. 70 (a) is a cross-sectional view of relevant parts showing a state before the rear side end 1242g of the circuit board 1242 is fitted into the groove 892
- FIG. 70 (b) is a rear side end 1242g of the circuit board 1242. Is a cross-sectional view of an essential part showing a state in which the groove part 892 is fitted.
- the arrow A in FIG. 70 (a) indicates the direction in which the circuit unit 1240 is inserted into the circuit holder 1250.
- the eyelet portion 1273 of the mouthpiece 1270 is provided with an opening portion 1273a at its central portion.
- a conductive cylindrical portion 1273b made of metal is fitted in the opening portion 1273a.
- the bent piece 1245b of the conductive plate 1245 abuts on the front inner peripheral surface of the small diameter portion 1253. Then, the conductive plate 1245 is bent in a direction (arrow B in FIG. 70A) toward the circuit board 1242 from the location where the main piece 1245a is continuous with the attachment portion 1245c. At this time, the main piece 1245a of the conductive plate 1245 is biased in the direction (the direction in which the deflection is canceled) to return to the original state. Then, when the circuit unit 1240 is further moved to the rear side, the bending piece 1245b is positioned in the slit 1253a.
- the main piece 1245a moves in the direction of moving away from the circuit board 1242 (arrow C in FIG. 70B) by the biasing force in the direction of returning to the original state.
- the bending piece 1245b elastically presses against the inner peripheral surface of the shell portion 71 of the mouthpiece 1270 exposed on the inner peripheral surface side of the small diameter portion 1253 through the slit 1253a.
- the conductive plate 1245 and the shell portion 71 are electrically connected.
- the rear end of the conductive pin 1246 is fitted into the conductive cylindrical portion 1273 b, whereby the conductive pin 1246 and the eyelet portion 1273 are electrically connected.
- the circuit holder 1250 When the circuit unit 1240 is guided by the guide member 1291 and inserted into the circuit holder 1250, the circuit holder 1250 is provided with a slit 1253a at a position where the bent piece 1245b of the conductive plate 1245 is to be positioned. .
- a protrusion may be provided on the outer peripheral surface of the small diameter portion 1253 and a recess or a notch that engages with the protrusion may be provided in the shell portion 71.
- the rear end side opening of the conductive cylindrical portion 1273b may be closed using a conductive member such as solder.
- the circuit board is disposed at a position offset in the radial direction from the cylinder axis of the circuit holder.
- the present invention is not limited to this.
- the circuit board may be disposed at a position passing through the cylinder axis of the circuit holder.
- the circuit holder may be filled with a substance such as an insulating resin having thermal conductivity.
- a substance such as an insulating resin having thermal conductivity.
- the heat from the circuit unit can be conducted more efficiently to the case and the base and dissipated.
- the inside of the die may be entirely filled with resin.
- the circuit holder can be omitted.
- the guide member and the groove may be formed on the inner circumferential surface of the housing.
- the function of the case may be performed by the case alone or by the case and the cap.
- ramp which concerns on said each embodiment, and the structure which concerns on each modification may be sufficient.
- the material, numerical value, etc. which were described to description in said each embodiment and each modification only illustrate a preferable thing, and are not limited to it.
- the dimensions and ratios of the respective members in the drawings are given as an example, and do not necessarily coincide with the dimensions and ratios of existing lamps.
- the present invention can be used as a technique for reducing the size of a circuit unit by increasing the proportion of the electronic component mounting area on the circuit board, and for reducing the size of the lamp.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
また近年、LEDランプの小型化が進み、小さくなった筐体内部空間に回路ユニットを効率よく収容するために、筐体の筒軸方向(ランプの高さ方向)に沿って回路基板を縦に配置する構成が採用されている。(特許文献2)
また、回路ユニットを構成する電子部品には衝撃に弱いものも含まれ、また、回路ユニットと口金および発光部との間の電気的接続が衝撃や振動によって損なわれる虞があるため、筐体内部において回路ユニットを固定する必要がある。回路ユニットの固定方法としては、作業が容易であることやコストの面から、筐体内部に筒軸に沿った方向に一対の溝を設け、筐体の開口している端部から溝に沿って回路基板を挿入し、回路基板の両側端部を溝に嵌合させて固定する方法が用いられている。
[概略構成]
図1は、第1の実施形態に係るランプ1の概略構成を示す外観斜視図である。図2は、ランプ1の回路基板に直交する平面による断面図である。図3は、ランプ1の回路基板と平行な平面による断面図である。なお、図3においては、各種電子部品および配線については図示を省略している。
(1)半導体発光モジュール
図1~図3に示すように、半導体発光モジュール10は、実装基板11と、実装基板11に実装された光源としての複数の半導体発光素子12と、それら半導体発光素子12を被覆するように実装基板11上に設けられた封止体13とを備える。なお、本実施形態では、半導体発光素子12はLEDであり、半導体発光モジュール10はLEDモジュールであるが、半導体発光素子12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、例えば、略円柱形状の貫通孔21を有する略円筒形状であり、その筒軸がランプ軸J1と一致する姿勢で配置されている。したがって、図2および図3に示すように、貫通孔21は前後方向に貫通し、基台20の前面および後面はいずれも略円環形状の平面である。そして、基台20の前面に半導体発光モジュール10が搭載されており、これにより各半導体発光素子12がそれぞれの主出射方向を前方に向けた状態で平面配置された状態となっている。基台20への半導体発光モジュール10の搭載は、例えば、ネジ止め、接着、係合などによって行なうことが考えられる。
図1に戻って、グローブ30は、本実施形態では、白熱電球形状であるA型の電球のバルブを模した形状であり、グローブ30の開口側端部31が基台20および筐体60に固定されている。なお、グローブ30の形状は、A型の電球のバルブを模した形状に限定されず、どのような形状であっても良い。さらには、ランプはグローブを備えない構成でも良い。
回路ホルダ50は、大径部52、および小径部53から成り、回路ユニット40を内部に収容する。大径部52および小径部53は、例えば、両側が開口した略円筒形状であって、円筒の軸とランプ軸J1とが一致するように軸方向に互いに連接され、一体的に形成されている。前方側に位置する大径部(第2ケース部)52には回路ユニット40の大半が収容され、回路ユニット40の一部は後方側に位置する小径部(第1ケース部)53に収容されている。また、小径部53は口金が取着される口金取着部であり、小径部53には口金70が外嵌され、これにより回路ホルダ50の後方側開口54が塞がれている。
回路ユニット40は、半導体発光素子12を点灯させるためのものであって、回路基板42と、当該回路基板42に実装された各種の電子部品43とを有している。
筐体60は、例えば、両端が開口し前方から後方へ向けて縮径した円筒形状、もしくは、底面に開口を有する椀形状をした部材である。図2,3に示すように、筐体60の前方側端部62内には基台20とグローブ30の開口側端部31とが収容されており、筐体60、基台20およびグローブ30は、例えば、それらで囲まれた空間に接着剤を流し込むなどして一体に固着されている。
口金70は、ランプ1が照明器具に取り付けられ点灯された際に、照明器具のソケットから電力を受けるための部材である。口金70の種類は、特に限定されるものではないが、本実施形態ではエジソンタイプであるE26口金が使用されている。口金70は、略円筒形状であって外周面が雄ネジとなっているシェル部71と、シェル部71に絶縁部72を介して装着されたアイレット部73とを備える。シェル部71と筐体60との間には絶縁部材74が介在している。
図2,3に示すように、ビームスプリッター80は、例えば、有底筒状であって両側が開口した略円筒形状の本体部81と、本体部81の前方側の面に配設された蓋材82から構成され、回路ホルダ50の前方側端部に取り付けられている。蓋材82は、例えば、有底筒状もしくはキャップ状であって、本体部81を介して大径部52の前方側に底部を前方に向けた状態で本体部81に保持されており、大径部52および本体部81の後方側開口を塞いでいる。
また、蓋材82の形状は、有底筒状もしくはキャップ状に限られず、例えば、円錐や多角柱、多角錘であってもよく、ビームスプリッター80を透過した半導体発光モジュール10からの光を遮光しない形状であれば、いずれの形状であってもよい。
図4は、ランプ1の回路ホルダ50内における回路基板42、溝部92、およびガイド部材91の位置関係を示す図である。図4(a)は回路ホルダの切り開き斜視図である。図4(b)は前方側から見た場合における回路ホルダ内の回路基板、溝部、およびガイド部材の位置関係を模式的に表す図である。図4(c)は横から見た場合における回路ホルダ内における溝部とガイド部材との位置関係を模式的に表す断面図である。なお、図4(c)においては、回路基板42については図示を省略している。
溝部92は、回路基板42の両主面と接触するため、回路基板42の溝部92と摺接する領域には電子部品を実装することができない。即ち、回路基板42を溝部92に嵌め込む際に、溝部92と摺接する距離が長いほど電子部品を実装できない領域面積が大きくなる。例えば、溝部92が大径部の前方側開口に隣接して設けられている場合、回路ユニット40が挿入される際に回路基板42の側縁部はその挿入方向の略全長に亘って溝部92と摺接することとなるため、回路基板42の挿入方向(この場合は、前後方向)における略全長に亘って電子部品を実装できない領域が生じてしまう。本実施形態に係るランプ1においては、図2~4に示すように、溝部92は小径部53にのみ設けられている。従って、回路基板42は、その挿入方向先端側(後方側)において溝部92の長さと略等しい長さ分だけが溝部92と摺接することとなり、挿入方向においてより手前側に溝部92が配置されている場合と比べると、回路基板42における電子部品を実装することができない領域を低減して、電子部品実装面積の割合を増加させることができる。
第1の実施形態に係るランプ1においては、回路ユニット40は回路ホルダ50の前方側から回路ホルダ内部に挿入される構成を有していた。しかし、回路ユニットが回路ホルダ内に収容される方法はこれに限定されるものではない。例えば、回路ホルダの後方側から回路ホルダ内に挿入されてもよい。
第2の実施形態に係るランプ100においては、図5および図6に示すように、溝部192は前方部151の前方側端部に形成されている。従って、回路基板142は、その挿入方向先端側(前方側)において溝部192の長さと略等しい長さ分だけが溝部192と摺接することとなり、挿入方向においてより手前側(後方側)に溝部192が配置されている場合と比べると、回路基板142における電子部品を実装することができない領域を低減して、電子部品実装面積の割合を増加させることができる。
第1および第2の実施形態においては、溝部92およびガイド部材91は、回路ホルダ内周面の両側に形成されていたが、これらに限られない。
また、第3の実施形態の構成を、第2の実施形態の構成に適用することも可能である。
図9は、第5の実施形態における回路ホルダ450内における回路基板42、溝部92、およびガイド部材91の位置関係を示す図である。図9(a)は回路ホルダ450の切り開き斜視図である。図9(b)は前方側から見た場合における回路ホルダ450内の回路基板42、溝部92、およびガイド部材91の位置関係を模式的に表す図である。図9(c)は横から見た場合における回路ホルダ450内における溝部92とガイド部材91との位置関係を模式的に表す断面図である。なお、図9(c)においては、回路基板42については図示を省略している。
また、第5の実施形態の構成を、第2の実施形態の構成に適用することも可能である。
図11は、第7の実施形態における回路ホルダ650内における回路基板42、溝部92、およびガイド部材91の位置関係を示す図である。図11(a)は回路ホルダ650の切り開き斜視図である。図11(b)は前方側から見た場合における回路ホルダ650内の回路基板42、溝部92、およびガイド部材91の位置関係を模式的に表す図である。図11(c)は横から見た場合における回路ホルダ650内における溝部92とガイド部材91との位置関係を模式的に表す断面図である。なお、図11(c)においては、回路基板42については図示を省略している。
また、第7の実施形態の構成を、第2の実施形態の構成に適用することも可能である。
また、溝部を口金内部の絶縁部に設けることもできる。
また、溝部を口金内部において絶縁部に設けた構成において、第3の実施形態の構成を適用することもできる。
溝部を口金内部において絶縁部に設けた構成において、第5の実施形態の構成を適用することもできる。
溝部を口金内部において絶縁部に設けた構成において、第7の実施形態の構成を適用することもできる。
以上、本発明の構成を第1~第12の実施形態に基づいて説明したが、本発明は上記実施形態に限られず、以下のような変形例を実施することができる。なお、説明の重複を避けるため、上記各実施形態と同じ構成要素については、同符号を付して、その説明を省略する。
2,102,802,902,1002,1102 ケース
10,110 半導体発光モジュール
40,140 回路ユニット
42,142 回路基板
43 電子部品
50,150,250,350,450,550,650,750,850,950,1050,1150 回路ホルダ
52,252,452,652,852,1052,1152 大径部
53,253,453,653 小径部
54,154 後方側開口
70 口金
91,191 ガイド部材
92,192 溝部
92a 板状部材
93 ストッパー
151 前方部
151a 筒部分
151b 蓋部分
152 後方部
Claims (9)
- 光源としての発光モジュールと、当該発光モジュールを点灯させるための複数の電子部品およびそれらが実装された回路基板を有する回路ユニットと、少なくとも一端に開口を有し、前記回路ユニットの少なくとも一部を内部に収容する筒状のケースと、を備えるランプであって、
前記ケースは、前記ランプが照明器具に装着された場合に、前記照明用器具のソケット内に位置する第1ケース部と前記ソケットの外側に位置する第2ケース部とから成り、
前記回路基板は、前記開口から前記ケース内部に挿入されて前記ケースの筒軸方向に沿った姿勢で前記ケース内部に収容され、
前記ケースは、その内周面に、
前記回路基板の前記挿入方向への移動を規制する第1規制部材と、
前記回路基板の前記回路基板の厚み方向における移動を規制する第2規制部材と、
前記第2規制部材よりも前記挿入方向における後方側に少なくとも一部が配され、前記回路ユニットが前記ケース内部に挿入される際に前記回路基板の一方の主面の一部と摺接することにより前記回路ユニットを前記ケース内において収容されるべき位置へと案内するガイド部材と、を備え、
前記第2規制部材は、
前記回路基板の挿入方向における長さが、前記回路基板の前記ケース内部に収容されている部分の前記挿入方向における長さよりも短く、
前記回路基板が、前記第1ケース部側から前記ケース内に挿入される場合には、前記第1規制部材に隣接して前記挿入方向における後方側に備えられており、
前記回路基板が、前記第1ケース部とは反対側から前記ケース内に挿入される場合には、少なくとも一部が前記第1ケース部に配されている
ことを特徴とするランプ。 - 前記第2規制部材は、前記回路基板の幅方向における両側縁部に対応する位置にそれぞれ配されている
ことを特徴とする請求項1に記載のランプ。 - 前記第2規制部材は、前記回路基板の幅方向における両側縁部のうち、一方の側縁部に対応する位置に配されている
ことを特徴とする請求項1に記載のランプ。 - 前記ガイド部材は、前記回路基板の幅方向における両側縁部に対応する位置にそれぞれ配されている
ことを特徴とする請求項1に記載のランプ。 - 前記ガイド部材は、前記回路基板の幅方向における両側縁部のうち、一方の側縁部に対応する位置に配されている
ことを特徴とする請求項1に記載のランプ。 - 前記規制部材は、前記挿入方向に沿って形成された溝である
ことを特徴とする請求項1に記載のランプ。 - 前記ガイド部材は、前記挿入方向に沿って長尺で、前記ケース内周面から前記ケース内部に向かう方向に平坦な平面を有する
ことを特徴とする請求項1に記載のランプ。 - 前記ケースは、回路ホルダと口金とから成り、
前記口金は、前記回路ホルダの一方の端部である口金取着部に外嵌され、
前記回路ホルダは、前記口金取着部とは反対側の端部に前記開口を有し、
前記第1ケース部は、前記口金取着部および前記口金であり、
前記第2規制部材は、前記口金の前記口金取着部と接触していない部分の内部に設けられている
ことを特徴とする請求項1に記載のランプ。 - 前記口金は、シェル部とアイレット部とを有し、
前記第2規制部材は、口金のシェル部とアイレット部との間の電気的絶縁性を確保するための絶縁部材に設けられている
ことを特徴とする請求項8に記載のランプ。
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WO2016057865A1 (en) * | 2014-10-09 | 2016-04-14 | Elumigen, Llc | Spring lock clip for coupling a circuit board to an electrical base |
US9829187B2 (en) | 2014-10-09 | 2017-11-28 | Elumigen Llc | Spring lock clip for coupling a circuit board to an electrical base |
USRE48806E1 (en) | 2014-10-09 | 2021-11-02 | Elumigen, Llc | Spring lock clip for coupling a circuit board to an electrical base |
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