JP2016207391A - Vehicle lamp fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle lamp fitting which achieves a small number of assembly work hours and uses a small number of components.SOLUTION: A vehicle lamp fitting includes: a light source module 2; a heat sink 5; and fixed power supply members 6. The light source module 2 includes: a substrate 20; semiconductor light emitting elements 21; and conductive parts 22. The heat sink 5 has a mounting part 50 and lock parts (inner wall surfaces of insertion grooves 54). In each fixed power supply member 6, a conductive member and an insulating member are integrally molded. The conductive member has an elastic contact part 70 and a terminal part 71. The insulating member has a sandwiching part 80 and an elastic locking part 81 which elastically locks the lock part.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicular lamp using a semiconductor light emitting element as a light source.

  This type of vehicular lamp is conventionally known (for example, Patent Document 1). Hereinafter, a conventional vehicle lamp will be described.

  A conventional vehicular lamp includes an LED module, an LED base, and a clip connector. The LED module has a heat dissipation substrate, a light emitting diode element, and a pair of power supply contacts. The LED base has a cavity. The clip connector has a pair of spring terminals and a base locking portion. The heat dissipation substrate of the LED module is placed on the LED base, the pair of spring terminals are in elastic contact with the pair of power supply contacts, and the base locking portion is inserted into the cavity. Accordingly, the pair of spring terminals and the base locking portion of the clip connector sandwich the LED module heat dissipation board, the pair of power supply contacts, and the LED base. As a result, the clip connector fixes the LED module to the LED base and supplies power to the LED module.

JP 2005-209535 A

  However, in the conventional vehicular lamp, in order to prevent the clip connector from falling off the LED base, the shade is screwed to the LED base and the clip connector is sandwiched between the shade and the LED base. For this reason, the conventional vehicular lamp has a large number of assembly steps and parts.

  The problem to be solved by the present invention is to provide a vehicular lamp with a small number of assembling steps and parts.

  The present invention (the invention according to claim 1) includes a light source module, a heat sink, and a fixed power supply member that fixes the light source module to the heat sink and supplies power to the light source module. A semiconductor light emitting device and a conductive portion mounted on one surface, the semiconductor light emitting device and the conductive portion are electrically connected, and a mounting portion having a mounting surface on which a substrate is mounted And a lock portion provided on the mounting portion, the fixed power supply member is formed integrally with the conductive member and the insulating member, and the conductive member elastically contacts the conductive portion to form the conductive portion. An elastic contact portion that electrically connects and presses the substrate against the mounting portion, and a terminal portion that is electrically connected and mechanically attached to the harness, and the insulating member is the substrate The preliminary mounting portion in cooperation with the elastic contact portion has a clamping portion for clamping, an elastic lock portion for resiliently locking the locking portion, the in, characterized in that.

  In the present invention (the invention according to claim 2), the pair of fixed power feeding members are separately configured on the plus side and the minus side, respectively, and the conductive portion of the light source module and the lock portion of the heat sink are paired with the pair of fixed feeding members. A pair is provided corresponding to each of the above.

  In this invention (the invention according to claim 3), the mounting portion is provided with a holding portion of the fixed power feeding member, an insertion hole into which the elastic lock portion is inserted, and an insertion groove, and the inner wall surface of the insertion hole and the holding portion. At least one of the outer wall surface, the inner wall surface of the insertion groove, and the outer wall surface of the elastic lock portion is provided with a first stopper that comes into contact with each other and restrains the fixed feeding member in the insertion direction. The inner wall surface of the insertion hole and the outer wall surface of the clamping portion are provided with a second stopper that abuts each other and stops in a direction perpendicular or substantially perpendicular to the insertion direction of the fixed feeding member. The inner wall surface and the outer wall surface of the elastic lock part are provided with a third stopper that abuts against each other and stops in a direction perpendicular or substantially perpendicular to the insertion direction of the fixed feeding member and the stopper direction of the second stopper. The inner wall of the insertion groove, elastic lock The outer wall surface of the portion is provided with a lock concave portion and a lock convex portion that are elastically fitted and elastically locked to each other, and stop in the opposite direction to the insertion direction of the fixed power feeding member. .

  The present invention (the invention according to claim 4) is characterized in that a portion where the elastic contact portion is in elastic contact with the conductive portion is located in the vicinity of the semiconductor light emitting element.

  The present invention (invention according to claim 5) is characterized in that the lock portion is provided at a location away from the semiconductor light emitting element in the mounting portion.

  In the vehicular lamp according to the present invention (the invention according to claim 1), the fixed power feeding member is provided with the elastic lock portion, and the heat sink is provided with the lock portion. Since the lock portion elastically locks to the lock portion of the heat sink, the fixed power feeding member can be prevented from falling off the heat sink. As a result, the vehicular lamp according to the present invention (the invention according to claim 1) can reduce the number of assembling steps and the number of parts as compared with the conventional vehicular lamp.

FIG. 1 is a schematic longitudinal sectional view (schematic vertical sectional view) of a lamp unit showing an embodiment of a vehicular lamp according to the present invention. FIG. 2 is a partially enlarged plan view (viewed in the direction of arrow II in FIG. 1) showing an assembled state of the light source module, heat sink, and fixed power supply member of the main part. FIG. 3 is a partially enlarged cross-sectional view (a cross-sectional view taken along line III-III in FIG. 2) showing an assembled state of the main part of the light source module, the heat sink, and the fixed power supply member. FIG. 4 is a partially enlarged plan view (a diagram corresponding to FIG. 2) illustrating a disassembled state of the light source module, the heat sink, and the fixed power feeding member of the main part. FIG. 5 is a partially enlarged cross-sectional view (a cross-sectional view taken along the line V-V in FIG. 4) showing an exploded state of the light source module, heat sink, and fixed power feeding member. FIG. 6 is a partially enlarged front view (viewed in the direction of arrow VI in FIG. 4) showing a light source module and a heat sink as main parts. FIG. 7 is a partially enlarged side view (a view taken in the direction of arrow VIIA and a view taken in the direction of arrow VIIB in FIG. 4) showing the fixed power feeding member of the main part.

  Hereinafter, an example of an embodiment (example) of a vehicular lamp according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In FIG. 1, hatching of the light source module, the projection lens, the bracket, and the fixed feeding member is omitted. In FIGS. 3 and 5, hatching of the conductive portion and the elastic contact portion is omitted. In this specification, front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicle lamp according to the present invention is mounted on a vehicle. In the figure, “F” is “front”, “B” is “rear”, “U” is “up”, “D” is “lower”, “L” is “left”, “R” is “right” Is.

(Description of Configuration of Embodiment)
Hereinafter, the configuration of the vehicular lamp in this embodiment will be described. In this example, for example, a headlamp of an automotive headlamp will be described.

(Description of vehicle lamp 1)
In FIG. 1, the code | symbol 1 is a vehicle lamp in this embodiment. The vehicle lamp 1 is mounted on both the left and right sides of the front portion of the vehicle. As shown in FIG. 1, the vehicular lamp 1 includes a lamp housing (not shown), a lamp lens (not shown), a light source module 2, a reflector 3, a projection lens 4, a heat sink 5, A pair of fixed power feeding members 6 and 6 and a bracket 10 and a holder 11 as mounting members are provided.

  An optical axis (in this example, the optical axis of the projection lens 4) Z of the vehicular lamp 1 is a front-rear direction. For this reason, the optical axis Z is perpendicular or substantially perpendicular (orthogonal or substantially orthogonal) to the left-right direction and the up-down direction.

  The lamp housing and the lamp lens (for example, a transparent outer lens) define a lamp chamber (not shown). The light source module 2, the reflector 3, the projection lens 4, the heat sink 5, the pair of fixed power supply members 6, 6, the bracket 10 and the holder 11 constitute a projector type lamp unit. The lamp units 2, 3, 4, 5, 6, 6, 10, and 11 are arranged in the lamp chamber, and have an optical axis adjustment mechanism for vertical direction (not shown) and an optical axis adjustment for horizontal direction. It is attached to the lamp housing via a mechanism (not shown).

  In the lamp chamber, lamp units other than the lamp units 2, 3, 4, 5, 6, 6, 10, 11 are disposed, for example, a clearance lamp unit, a turn signal lamp unit, a daytime running lamp unit, and the like. May be. In addition, an inner panel (not shown), an inner housing (not shown), an inner lens (not shown), or the like may be disposed in the lamp chamber.

(Description of bracket 10 and holder 11)
The bracket 10 and the holder 11 have a separate structure or an integral structure. The bracket 10 has a plate shape. The heat sink 5 is attached to the bracket 10. The holder 11 has a ring shape. The projection lens 4 is attached to the holder 11.

(Description of light source module 2)
The light source module 2 is fixed to the heat sink 5 by a pair of fixed power supply members 6 and 6. The light source module 2 is supplied with power by a pair of the fixed power supply members 6 and 6. The light source module 2 includes a substrate 20, a semiconductor light emitting element 21, a pair of conductive portions 22 and 22, a wiring portion 23, and two wires 24 and 24. Note that the substrate 20, the semiconductor light emitting element 21, the conductive portions 22, 22, the wiring portion 23, and the wires 24, 24 of the light source module 2 are shown larger or thicker than actual. Yes. Further, the semiconductor light emitting element 21, the conductive portions 22, 22, the wiring portion 23, and the wires 24, 24 of the light source module 2 may be omitted.

  In this example, the substrate 20 is made of ceramic. The substrate 20 has a rectangular plate shape having a long side in the left-right direction and a short side in the front-rear direction. The semiconductor light emitting element 21, the conductive portions 22 and 22, the wiring portion 23, and the wires 24 and 24 are mounted on one surface (upper surface) of the substrate 20. That is, the conductive portions 22 and 22 and the wiring portion 23 are printed on one surface of the substrate 20. A pair of conductive portions 22 and 22 are provided separately on the plus side and the minus side, respectively. The semiconductor light emitting element 21 is electrically connected to the wiring part 23. The two wires 24 and 24 are electrically bonded to the pair of the conductive portions 22 and 22 and the wiring portion 23. As a result, the semiconductor light emitting element 21 and the pair of conductive portions 22 and 22 are electrically connected via the wiring portion 23 and the two wires 24 and 24.

  In this example, the semiconductor light emitting element 21 as a light source is a self light emitting semiconductor light emitting element such as an LED, an OEL, or an OLED. The semiconductor light emitting element 21 is composed of a chip having a small square in plan view (viewed from above). In this example, the four semiconductor light emitting elements 21 are arranged in the longitudinal direction of the substrate 20, that is, in the vertical direction or substantially vertical direction (left-right direction) with respect to the optical axis Z direction. The semiconductor light emitting element 21 emits light when supplied with current.

(Description of reflector 3)
The reflector 3 is made of, for example, a material having high heat resistance and light impermeability such as a resin member. The reflector 3 is attached to the heat sink 5 with a screw or the like (not shown).

  The reflector 3 has a hollow shape in which a front part and a lower part are opened, and a rear part, an upper part, and both left and right parts are closed. On the concave inner surface of the closed portion of the reflector 3, there is provided a reflecting surface (convergent reflecting surface) 30 formed of a free-form surface or a rotating ellipsoid based on an ellipse (based on a rotating ellipsoid). The reflective surface 30 includes a first focal point F1, a second focal point (second focal line) F2, a first focal point F1, and a second focal point F2, which are located at or near the center of the semiconductor light emitting element 21. A connecting optical axis (not shown). The reflection surface 30 reflects light from the upward semiconductor light emitting element 21 to the projection lens 4 side as reflected light (not shown).

(Description of the projection lens 4)
The projection lens 4 is made of a resin lens such as a PC material, a PMMA material, or a PCO material. That is, since the light emitted from the semiconductor light emitting element 21 does not have high heat, a resin lens can be used as the projection lens 4. The projection lens 4 is attached to the holder 11. The projection lens 4 is positioned in front of the light source module 2, the reflector 3, and the heat sink 5.

  The projection lens 4 has a focal point (focal line, lens focal point, lens focal line, meridional image plane which is a focal plane on the object space side) F3 and the optical axis Z. The focal point F3 of the projection lens 4 is located at or near the second focal point F2 of the reflecting surface 30. The optical axis Z of the projection lens 4 and the optical axis of the reflecting surface 30 intersect at the second focal point F2 and the focal point F3 or in the vicinity thereof. Note that the optical axis Z of the projection lens 4 and the optical axis of the reflecting surface 30 may coincide or substantially coincide with each other.

  The projection lens 4 is a projection lens based on an aspherical surface. The projection lens 4 includes a rear entrance surface 40 and a front exit surface 41. The incident surface 40 faces the reflector 3. The incident surface 40 is substantially flat or aspheric (a convex surface or a concave surface with respect to the reflector 3). The exit surface 41 is an aspherical convex surface.

  The projection lens 4 is the light from the semiconductor light emitting element 21, and the reflected light from the reflecting surface 30 of the reflector 3 is used as a predetermined light distribution pattern (not shown). Irradiate forward.

(Description of heat sink 5)
The heat sink 5 is made of a material having high thermal conductivity such as resin or metal die casting (aluminum die casting). The heat sink 5 includes an upper plate mounting portion 50 and a plurality of fin portions 51. The light source module 2 is fixed to the mounting portion 50 by a pair of fixed power supply members 6 and 6. The heat sink 5 is attached to the bracket 10. The heat sink 5 may serve as both a heat radiating member and an attachment member.

  On one surface (upper surface) of the mounting portion 50, a mounting surface 52 on which the other surface (lower surface) of the substrate 20 is mounted is provided. The mounting portion 50 is provided with insertion holes 53 and 53 and insertion grooves 54 and 54, respectively. The inner wall surfaces of the insertion grooves 54 and 54 constitute a lock portion. A pair of the insertion holes 53 and 53 and the insertion grooves 54 and 54 are provided separately on the plus side and the minus side, respectively, corresponding to the pair of conductive portions 22 and 22.

  As shown in FIGS. 2, 4, and 6, the pair of insertion grooves 54 and 54 are provided in a vertical direction or a substantially vertical direction (up and down direction) with respect to the mounting surface 52. The pair of insertion grooves 54, 54 are provided from the mounting surface 52 to a predetermined depth. The pair of insertion grooves 54, 54 are provided from the rear surface of the mounting portion 50 to a predetermined depth. The depth is slightly longer than the short side of the substrate 20. The pair of insertion grooves 54, 54 are provided with a predetermined width in the left-right direction. The opposing surfaces of the pair of insertion grooves 54 and 54 and the left and right end surfaces of the substrate 20 are flush or substantially flush with each other in the vertical direction.

  As shown in FIGS. 2, 4, and 6, the pair of insertion holes 53, 53 are provided in a parallel direction or a substantially parallel direction (left-right direction) with respect to the mounting surface 52. The pair of insertion holes 53, 53 are provided from the opposed surfaces of the lower part of the pair of insertion grooves 54, 54, that is, from the left and right end surfaces of the substrate 20 to a predetermined length. The pair of insertion holes 53 are provided from the rear surface of the mounting portion 50 to a predetermined depth. The depth is shorter than the short side of the substrate 20. The pair of insertion holes 53 are provided with a predetermined vertical width. Between the opposing surfaces of the pair of insertion holes 53, 53, the mounting portion 50 exists corresponding to an intermediate portion of the long side of the substrate 20.

  The pair of insertion holes 53, 53 and the pair of insertion grooves 54, 54 are provided at a location away from the semiconductor light emitting element 21 (the wiring portion 23) in the mounting portion 50. That is, the pair of insertion holes 53, 53 and the pair of insertion grooves 54, 54 are not provided in the mounting portion 50 at a location close to the semiconductor light emitting element 21 (the wiring portion 23). Thus, as described above, the mounting portion 50 exists between the opposing surfaces of the pair of insertion holes 53 and 53 corresponding to the middle portion of the long side of the substrate 20.

(Description of the fixed feeding member 6)
The fixed power feeding members 6 and 6 are individually configured as a pair on the plus side and the minus side. The pair of fixed power supply members 6, 6, the pair of conductive portions 22, 22 of the light source module 2, the pair of insertion holes 53, 53 and the pair of insertion grooves 54, 54 of the heat sink 5 are A pair is provided corresponding to each of the minus side.

  The pair of fixed power supply members 6 and 6 fix the light source module 2 to the heat sink 5 and supply power to the light source module 2. The pair of fixed power supply members 6 and 6 are each integrally formed with a conductive member 7 and an insulating member 8.

(Description of conductive member 7)
The conductive member 7 includes an elastic contact part 70, a terminal part 71, and a relay part 72. The elastic contact portion 70 is a conductive leaf spring protruding from the insulating member 8. The distal end portion of the elastic contact portion 70 is curved in an arc shape. The curved distal end portion of the elastic contact portion 70 is elastically contacted with the conductive portion 22 to electrically connect to the conductive portion 22 and press the substrate 20 against the mounting portion 50 via the conductive portion 22. It is. The curved distal end portion of the elastic contact portion 70 and the conductive portion 22 are elastically contacted with each other in a straight line (refer to a one-dot chain line in FIG. 2). The portion where the elastic contact portion 70 is in elastic contact with the conductive portion 22 is located in the vicinity of the semiconductor light emitting element 21 as shown in FIG.

  The terminal portion 71 is a conductive plate protruding from the insulating member 8. A large and small caulking portion is integrally provided at the distal end portion of the terminal portion 71. The large caulking portion is caulked with the conductive core wire and the insulating coating of the harness 73. The conductive core wire of the harness 73 is caulked to the small caulking portion. Thereby, the terminal portion 71 and the harness 73 are electrically connected to each other and mechanically attached.

  The relay portion 72 is a conductive plate embedded in the insulating member 8. The relay portion 72 is integrally provided between the elastic contact portion 70 and the terminal portion 71. Thereby, the elastic contact portion 70 and the terminal portion 71 are electrically connected to each other via the relay portion 72.

  The harness 73 is electrically connected to a power source (battery) (not shown) via a drive circuit (not shown) of the semiconductor light emitting element 21 and a lighting / extinguishing switch (not shown).

(Description of insulating member 8)
The insulating member 8 includes a sandwiching portion 80, an elastic lock portion 81, and an embedded portion 82. The clamping portion 80 has a horizontal plate shape inserted into the insertion hole 53. The clamping part 80 and the elastic contact part 70 are opposed to each other in the vertical direction. The clamping unit 80 clamps the substrate 20 and the mounting unit 50 together with the elastic contact unit 70. A portion of the mounting portion 50 that is sandwiched between the clamping portion 80 and the elastic contact portion 70 is a portion between the mounting surface 52 and the pair of insertion holes 53, 53. Note that, as indicated by a two-dot chain line in FIG. 3, a part of the conductive member 7 may be embedded in the sandwiching portion 80 to increase the strength of the sandwiching portion 80.

  The elastic lock portion 81 has a vertical plate shape inserted into the insertion groove 54. The elastic lock part 81 is integrally provided on one side (left side or right side) of the clamping part 80. The front surface of the elastic lock portion 81 protrudes more forward than the front surface of the clamping portion 80. As a result, the elastic lock portion 81 has elasticity in the plate thickness direction (the direction of the solid line arrow in FIG. 4). A protruding portion 83 is integrally provided on the rear side portion of the elastic lock portion 81 and on one side (left side or right side) where the clamping portion 80 is located. The front surface of the protrusion 83 is inclined so that it can be easily inserted into the insertion groove 54. Of the outer wall surface of the elastic lock portion 81, the outer wall surface opposite to the sandwiching portion 80 is elastically locked by elastically contacting the inner wall surface of the insertion groove 54 as a lock portion.

  The buried portion 82 has a plate shape perpendicular to the horizontal plate-shaped sandwiching portion 80 and the vertical plate-shaped elastic lock portion 81. The embedded portion 82 is integrally provided on the rear side of the sandwiching portion 80 and the rear side of the elastic lock portion 81. The relay portion 72 is embedded in the embedded portion 82. The elastic contact portion 70 projects forward from the front surface of the upper portion of the embedded portion 82. The terminal portion 71 projects rearward from the rear surface of the lower portion of the embedded portion 82. The upper surface of the embedded portion 82 protrudes above the upper surface of the clamping portion 80. Thereby, the elastic contact portion 70 and the sandwiching portion 80 face each other.

(Explanation of stopper)
The inner wall surface on the front side of the insertion groove 54 and the outer wall surface on the front side of the elastic lock portion 81 are in contact with each other in the insertion direction of the fixed feeding member 6 (in the direction of the solid arrow in FIGS. 4 and 5). , A first stopper 91 is provided for stopping in the direction from the rear side to the front side. The upper and lower inner wall surfaces of the insertion hole 53 and the upper and lower outer wall surfaces of the sandwiching portion 80 are in contact with each other and are perpendicular or substantially perpendicular to the insertion direction of the fixed feeding member 6 A second stopper 92 is provided to stop in the (vertical direction). An inner wall surface on one side (left side or right side) of the insertion groove 54, an outer wall surface on one side (left side or right side) of the elastic lock portion 81, and an outer wall surface on one side (left side or right side) of the protrusion 83 are In addition, a third stopper 93 is provided that is in contact with each other and restrains in the direction perpendicular to or substantially perpendicular to the direction of insertion of the fixed power supply member 6 and the direction of the stopper of the second stopper 92 (left-right direction). The inner wall surface on one side (left side or right side) of the front portion of the insertion groove 54 and the outer wall surface of one side (left side or right side) of the front portion of the elastic lock portion 81 are elastically fitted to each other. A lock concave portion 55 and a lock convex portion 84 are provided for restraining in the opposite direction (the direction from the front side to the rear side) with respect to the insertion direction of the fixed power feeding member 6.

(Explanation of assembly)
Hereinafter, the assembly of fixing the light source module 2 to the heat sink 5 and supplying power to the light source module 2 by a pair of the fixed power supply members 6 and 6 will be described.

  First, the other surface (lower surface) of the substrate 20 of the light source module 2 is mounted on the mounting surface 52 of the mounting portion 50 of the heat sink 5. At this time, the left and right side surfaces of the substrate 20 are aligned with the inner wall surface (the third stopper 93) on one side (left side or right side) of the pair of insertion grooves 54, 54 of the mounting portion 50. Further, the rear surface of the substrate 20 and the rear surface of the mounting portion 50 are matched.

  Next, the elastic lock portions 81 and 81 of the pair of fixed feeding members 6 and 6 are inserted into the insertion grooves 54 and 54 in the pair of insertion grooves 54 and 54, respectively, in the direction indicated by the solid arrows in FIGS. Insert into. Further, the elastic contact portions 70 and 70 of the pair of fixed power supply members 6 and 6 are connected to the pair of conductive portions 22 and 22 on one surface (upper surface) of the substrate 20 by solid line arrows in FIGS. 4 and 5. Slide in the direction, ie from the back to the front. Further, the holding portions 80, 80 of the pair of fixed power supply members 6, 6 are inserted into the pair of insertion holes 53, 53 of the mounting portion 50 in the direction indicated by the solid line arrows in FIGS. Insert in the direction to. Furthermore, the protrusions 83 and 83 of the pair of fixed power supply members 6 and 6 are placed in the pair of insertion grooves 54 and 54 in the direction indicated by the solid arrows in FIGS. 4 and 5, that is, from the rear side to the front side. insert.

  Then, the first stopper 91 on the outer wall surface on the front side of the elastic lock portions 81, 81 abuts on the first stopper 91 on the inner wall surface on the front side of the pair of insertion grooves 54, 54, and a pair of the fixed feeding members The insertion direction of 6, 6 is restrained. In addition, the second stoppers 92 on the upper and lower outer wall surfaces of the sandwiching portions 80 and 80 are in contact with the second stoppers 92 on the upper and lower inner wall surfaces of the pair of insertion holes 53 and 53, respectively. The up and down directions of the fixed power supply members 6 and 6 are restrained. Further, the third stopper 93 on the outer wall surface on one side of the elastic lock portion 81 and the outer wall surface on one side of the protrusion 83 is the third stopper on the inner wall surface on one side of the pair of insertion grooves 54, 54. The left and right directions of the pair of fixed power supply members 6 are restrained by coming into contact with 93. Furthermore, the lock projections 84, 84 of the elastic lock portions 81, 81 are elastically fitted into the lock recesses 55 of the pair of insertion grooves 54, 54 to insert the pair of fixed feeding members 6, 6. The opposite direction is stopped.

  Thereby, it is possible to prevent the pair of fixed power supply members 6 and 6 from falling off the heat sink 5. At this time, the elastic contact portions 70 and 70 and the sandwiching portions 80 and 80 of the pair of fixed power supply members 6 and 6 jointly sandwich the substrate 20 and the mounting portion 50. As a result, the light source module 2 is fixed to the heat sink 5 by the pair of fixed power supply members 6, 6, and the light source module 2 can supply power.

(Description of the operation of the embodiment)
The vehicular lamp 1 in this embodiment is configured as described above, and the operation thereof will be described below.

  Turn ON / OFF switch. Then, current flows from the elastic contact portions 70 and 70 of the conductive members 7 and 7 of the pair of fixed power supply members 6 and 6 to the pair of conductive portions 22 and 22 of the light source module 2 through the harnesses 73 and 73. The current is supplied from the pair of conductive portions 22 and 22 to the semiconductor light emitting element 21 through the two wires 24 and 24 and the wiring portion 23. Thereby, the semiconductor light emitting element 21 emits light.

  The light emitted from the semiconductor light emitting element 21 of the light source module 2 is reflected by the reflecting surface 30 of the reflector 3 toward the projection lens 4. The reflected light is irradiated to the outside through the projection lens 4 with a predetermined light distribution pattern.

(Explanation of effect of embodiment)
The vehicular lamp 1 according to this embodiment has the above-described configuration and operation, and the effects thereof will be described below.

  In the vehicle lamp 1 according to this embodiment, the fixed power feeding members 6 and 6 are provided with elastic lock portions 81 and 81, while the heat sink 5 is provided with insertion grooves 54 and 54. For this reason, the vehicular lamp 1 according to this embodiment is configured so that the outer wall surfaces of the elastic lock portions 81 and 81 are elastically locked by elastically contacting the inner wall surfaces of the insertion grooves 54 and 54 as the lock portions. 6 and 6 can be prevented from falling off the heat sink 5. As a result, the vehicular lamp 1 in this embodiment can reduce the number of assembling steps and the number of parts as compared with the conventional vehicular lamp. Thereby, the vehicular lamp 1 in this embodiment can reduce the manufacturing cost.

  In the vehicle lamp 1 in this embodiment, a pair of fixed power supply members 6 and 6 are separately formed on the plus side and the minus side, respectively, and the conductive portions 22 and 22 of the light source module 2 and the insertion groove 54 of the heat sink 5 are arranged. , 54 are provided corresponding to the pair of fixed power supply members 6, 6, respectively. For this reason, the vehicular lamp 1 in this embodiment shares the fixed power feeding members 6 and 6 even if the size of the substrate 20 of the light source module 2 differs corresponding to the number of semiconductor light emitting elements 21 to be mounted. be able to. That is, in the vehicular lamp 1 according to this embodiment, even if the size of the substrate 20 is different, the positions of the conductive portions 22 and 22 and the insertion grooves 54 and 54 of the lock portion are set to the number of semiconductor light emitting elements 21 to be mounted. Correspondingly, the same fixed feeding members 6 and 6 can be used by changing. For example, even if the size of the substrate 20 is reduced from one mounting four semiconductor light emitting elements 21 to one mounting two semiconductor light emitting elements 21, the same fixed power feeding members 6 and 6 can be used. The degree of freedom in using the fixed power feeding members 6 and 6 is improved.

  The vehicular lamp 1 according to this embodiment includes the first stopper 91, the second stopper 92, the third stopper 93, the lock recess 55, and the lock protrusion 84, and the fixed power feeding members 6, 6 on the heat sink 5. It can be mounted without play in the three directions. As a result, in the vehicular lamp 1 in this embodiment, the light source module 2 is securely fixed to the heat sink 5 and the light source module 2 can be reliably fed.

  The vehicular lamp 1 according to this embodiment is configured such that the elastic contact portions 70 and 70 of the pair of fixed power supply members 6 and 6 are in elastic contact with the pair of conductive portions 22 and 22 (one-dot chain line in FIG. 2). Is located in the vicinity of the semiconductor light emitting element 21. For this reason, the vehicular lamp 1 in this embodiment is in close contact with a portion of the substrate 20 in the vicinity of the semiconductor light emitting element 21 that is pressed against the mounting portion 50 by the elastic contact portions 70 and 70. Thereby, in the vehicle lamp 1 in this embodiment, heat generated in the semiconductor light emitting element 21 due to light emission is easily transmitted to the mounting portion 50 via the substrate 20, and the heat dissipation effect is improved. In particular, the vehicular lamp 1 according to this embodiment has an extension line (refer to a one-dot chain line in FIG. 2) where the elastic contact portions 70 and 70 are elastically contacted in a straight line with the pair of conductive portions 22 and 22. The four semiconductor light emitting elements 21 are parallel or substantially parallel to and close to the arrangement direction in the longitudinal direction of the substrate 20. As a result, in the vehicular lamp 1 in this embodiment, the heat generated in the semiconductor light emitting element 21 is further easily transmitted to the mounting portion 50, and the heat dissipation effect is further improved.

  In the vehicle lamp 1 in this embodiment, a pair of insertion holes 53, 53 and a pair of insertion grooves 54, 54 are provided at a location away from the semiconductor light emitting element 21 in the mounting portion 50. That is, in the vehicular lamp 1 according to this embodiment, the pair of insertion holes 53 and 53 and the pair of insertion grooves 54 and 54 are not provided at a location near the semiconductor light emitting element 21 in the mounting portion 50. Thereby, as shown in FIG. 6, the vehicle lamp 1 according to this embodiment includes a mounting portion 50 between the opposing surfaces of the pair of insertion holes 53 and 53. As a result, the vehicular lamp 1 according to this embodiment can easily transfer heat generated in the semiconductor light emitting element 21 along with light emission to the mounting portion 50 via the substrate 20 as indicated by solid arrows in FIG. The effect is improved. In particular, the vehicular lamp 1 according to this embodiment has a mounting portion 50 in which the space between the opposing surfaces of the pair of insertion holes 53 and 53 corresponds to the middle portion of the long side of the substrate 20. As a result, in the vehicular lamp 1 in this embodiment, the heat generated in the semiconductor light emitting element 21 is further easily transmitted to the mounting portion 50, and the heat dissipation effect is further improved.

(Description of example other than embodiment)
In this embodiment, the first stopper 91 is provided on the inner wall surface of the insertion groove 54 and the outer wall surface of the elastic lock portion 81. However, in the present invention, the first stopper may be provided on the inner wall surface of the insertion hole 53 and the outer wall surface of the clamping portion 80, the inner wall surface of the insertion groove 54, the outer wall surface of the elastic lock portion 81, and the insertion. You may provide a 1st stopper in the inner wall surface of the hole 53, and the outer wall surface of the clamping part 80, respectively.

  In this embodiment, the lock recess 55 is provided on the inner wall surface of the insertion groove 54, and the lock protrusion 84 is provided on the outer wall surface of the elastic lock portion 81. However, in the present invention, a lock convex portion may be provided on the inner wall surface of the insertion groove 54 and a lock concave portion may be provided on the outer wall surface of the elastic lock portion 81, or the lock concave portion and the lock convex portion may be provided on the inner wall surface of the insertion groove 54. May be provided, and a lock convex part and a lock concave part may be provided on the outer wall surface of the elastic lock part 81, respectively.

  Further, in this embodiment, although not shown, the substrate 20 of the light source module 2 is positioned on the mounting surface 52 of the heat sink 5 in the front-rear and left-right directions by appropriate positioning means.

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Light source module 20 Board | substrate 21 Semiconductor light-emitting element 22, 22 Conductive part 23 Wiring part 24, 24 Wire 3 Reflector 30 Reflecting surface 4 Projection lens 40 Incidence surface 41 Outgoing surface 5 Heat sink 50 Mounting part 51 Fin part 52 Mounting surface 53, 53 Insertion hole 54, 54 Insertion groove 55, 55 Lock recess 6 Fixed feed member 7 Conductive member 70 Elastic contact portion 71 Terminal portion 72 Relay portion 73 Harness 8 Insulating member 80 Holding portion 81 Elastic lock portion 82 Buried portion 83 Protrusion portion 84 Lock Protrusion 91 First Stopper 92 Second Stopper 93 Third Stopper 10 Bracket 11 Holder B Rear D Lower F Front F1 First Focus F2 Second Focus F3 Focus L Left R Right U Upper Z Optical Axis

Claims (5)

A light source module;
A heat sink,
A fixed power supply member for fixing the light source module to the heat sink and supplying power to the light source module;
With
The light source module includes a substrate, a semiconductor light emitting element and a conductive portion mounted on one surface of the substrate, and the semiconductor light emitting element and the conductive portion are electrically connected,
The heat sink has a mounting portion having a mounting surface on which the substrate is mounted, and a lock portion provided in the mounting portion,
In the fixed power supply member, the conductive member and the insulating member are integrally formed,
The conductive member is elastically contacted with the conductive portion and electrically connected to the conductive portion, and an elastic contact portion that presses the substrate against the mounting portion, and a harness is electrically connected and mechanically attached. A terminal portion, and
The insulating member includes a holding part that holds the substrate and the mounting part together with the elastic contact part, and an elastic lock part that elastically locks to the lock part.
A vehicular lamp characterized by the above. The fixed power supply member is configured as a pair separately on the plus side and the minus side,
A pair of the conductive portion of the light source module and the lock portion of the heat sink are provided corresponding to the pair of fixed power supply members, respectively.
The vehicular lamp according to claim 1. The mounting portion is provided with the clamping portion of the fixed power feeding member, an insertion hole into which the elastic lock portion is inserted, an insertion groove,
At least one of the inner wall surface of the insertion hole and the outer wall surface of the clamping portion, the inner wall surface of the insertion groove and the outer wall surface of the elastic lock portion is in contact with each other, and the insertion direction of the fixed feeding member A first stopper is provided to stop
The inner wall surface of the insertion hole and the outer wall surface of the clamping portion are provided with a second stopper that is in contact with each other and restrains in a direction perpendicular to or substantially perpendicular to the insertion direction of the fixed feeding member,
The inner wall surface of the insertion groove and the outer wall surface of the elastic lock portion are in contact with each other to restrain in a direction perpendicular or substantially perpendicular to the insertion direction of the fixed feeding member and the stopper direction of the second stopper. A third stopper is provided,
Lock recesses and lock protrusions that are elastically locked by being elastically fitted to each other on the inner wall surface of the insertion groove and the outer surface of the elastic lock portion, and that restrains in the opposite direction to the insertion direction of the fixed feeding member Is provided,
The vehicular lamp according to claim 1 or 2. The location where the elastic contact portion is in elastic contact with the conductive portion is located in the vicinity of the semiconductor light emitting element,
The vehicular lamp according to any one of claims 1 to 3. The lock part is provided in a place away from the semiconductor light emitting element in the mounting part.
The vehicular lamp according to any one of claims 1 to 4, wherein the vehicular lamp is provided.

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