JP2008305718A - Light-emitting diode fixing structure for lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light-emitting diode fixing structure capable of enhancing positioning accuracy to a heat sink of a light-emitting diode. <P>SOLUTION: The light-emitting diode 2 is mounted on the surface of the heat sink 4, and the positioning accuracy to the heat sink 4 of the light-emitting diode 2 is improved since the light-emitting diode 2 is respectively held in the front and rear direction B and in a vehicular width direction A by a first projection section 20 and second projection section 21 formed on the surface of the heat sink 4. That is, the positioning accuracy is not affected by fixing conditions of a holder 3, and it is only determined by relationship with the heat sink 4. Upon improving the positioning accuracy of the light-emitting diode 2, relative positioning accuracy of a lighting unit to a reflector and projector lens is enhanced, and optical performance of the lighting device itself is improved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a light-emitting diode fixing structure suitable for a lighting device such as a vehicle lamp.

  In general, in the case of a vehicle lighting device using a light emitting diode as a light source, light from the light emitting diode is irradiated in a predetermined light distribution pattern in a predetermined direction using a reflector or a lens.

The light emitting diode is fixed in close contact with the surface of the heat sink for heat dissipation. The light emitting diode is fixed by a holder having a power feeding function to the light emitting diode. The light emitting diode is fixed to the surface of the heat sink while being positioned with respect to the holder (see, for example, Patent Document 1).
JP 2006-66108 A

  However, in such a conventional technique, the light emitting diode is positioned with respect to the holder fixed to the heat sink, and the light emitting diode is not directly positioned with respect to the heat sink. Therefore, the positional accuracy of the light emitting diode is affected by the fixing state of the holder with respect to the heat sink, and if the fixing accuracy of the holder is not good, the positional accuracy of the light emitting diode is also lowered. When the positional accuracy of the light emitting diode is lowered, the relative positional relationship with respect to the reflector, the lens, and the like is lost, and the optical performance of the lighting device itself is lowered.

  The present invention has been made by paying attention to such a conventional technique, and provides a light-emitting diode fixing structure for a lighting device that can increase the positional accuracy of the light-emitting diode with respect to the heat sink.

  The invention according to claim 1 is a light-emitting diode fixing structure for a lighting device, the light-emitting diode having a light-emitting portion on the surface and a power feeding portion on both sides of the light-emitting portion, and the light-emitting diode mounted on the surface A metal heat sink, and an insulating material holder having an opening for exposing the light emitting portion of the light emitting diode and having a pair of metal wiring bodies in contact with the pair of power feeding portions, on the surface of the heat sink A positioning guide surface that is in contact with a side surface of the light emitting diode in a state where the light emitting diode is sandwiched in two orthogonal directions is formed, and the light emitting diode is placed on the surface of the heat sink, from the surface side of the light emitting diode. The holder is covered and fixed to the surface of the heat sink.

  The invention according to claim 2 is the light-emitting diode fixing structure for the illumination device according to claim 1, wherein the positioning guide surface is formed as a protruding portion protruding in a vertical wall shape from the surface of the heat sink. It is characterized by.

  The invention according to claim 3 is the light emitting diode fixing structure for the lighting device according to claim 1 or 2, wherein a guide hole is formed in the holder, and the guide of the holder is formed on the surface of the heat sink. A guide pin inserted into the hole protrudes, and when the holder is attached in a different direction, the guide pin of the heat sink is set so as to interfere with a portion other than the guide hole of the holder. And

  The invention according to claim 4 is the light-emitting diode fixing structure for a lighting device according to any one of claims 1 to 3, wherein the holder is sandwiched between the heat sink surfaces. A pair of protrusions that are in contact with the side surfaces are formed.

  The invention according to claim 5 is the light-emitting diode fixing structure for the lighting device according to any one of claims 1 to 4, wherein a contour shape matching the back surface of the holder is formed on the surface of the heat sink. A raised portion is formed, and the light emitting diode is fixed to a surface of the raised portion.

  A sixth aspect of the present invention is the light emitting diode fixing structure for a lighting device according to any one of the first to fifth aspects, wherein the holder has the opening and a part of the metal wiring body. A frame-shaped general portion in which the metal wiring body is embedded in a state where the metal wiring body is exposed, and an end portion of the metal wiring body is exposed from the general portion to serve as a connection terminal. It is characterized by that.

  The invention according to claim 7 is the light emitting diode fixing structure for the lighting device according to claim 6, wherein the connection terminal does not protrude from an extension line of the surface of the general part. To the surface of the general part.

  The invention according to claim 8 is the light emitting diode fixing structure for the lighting device according to claim 6, wherein the connection terminal protrudes in a substantially perpendicular direction rising from the surface of the general part. To do.

  The invention according to claim 9 is the light-emitting diode fixing structure for the lighting device according to claim 8, wherein the holder portion protrudes from a general portion of the holder and surrounds the periphery of the connection terminal. A connection portion for guiding the connection of the counterpart connection terminal to the connection terminal is provided.

  A tenth aspect of the present invention is the light emitting diode fixing structure for an illuminating device according to the ninth aspect, wherein the pair of protrusions are in contact with a side surface of the connection portion.

  According to the first aspect of the present invention, the light emitting diode is placed on the surface of the heat sink, and the light emitting diode is sandwiched in two orthogonal directions by the positioning guide surface formed on the surface of the heat sink. The positional accuracy with respect to the heat sink is improved. That is, the positional accuracy of the light emitting diode is not affected by the fixing condition of the holder, and is determined only by the relationship with the heat sink. Thus, since the positional accuracy of the light emitting diode is improved, the relative positional accuracy of the lighting device with respect to the reflector, the lens, and the like is increased, and the optical performance of the lighting device itself is improved.

  According to the second aspect of the present invention, since the standing wall-shaped convex portion comes into contact with the side surface of the light emitting diode, the heat of the light emitting diode is radiated from the side surface as well as from the side surface. The heat radiation performance by improves.

  According to the third aspect of the present invention, if the holder is not fixed to the heat sink in a proper direction, the guide pin protruding from the heat sink interferes with the holder and cannot be fixed, so that the holder is not assembled incorrectly. can do.

  According to invention of Claim 4, since a holder is supported in the state pinched | interposed by a pair of projection part, while being able to prevent an incorrect assembly | attachment of a holder, the attachment stability of a holder increases.

    According to the fifth aspect of the present invention, since the raised portion having the contour shape that matches the back surface of the holder is formed on the surface of the heat sink, the operator fixing the holder can change the direction of fixing the holder with respect to the height of the raised portion. It can be visually recognized from the shape, and can be fixed without making a mistake in the orientation of the holder.

  According to invention of Claim 6, since it becomes unnecessary to attach a terminal member separately with respect to a metal wiring body, a number of parts can be reduced and manufacturing cost can be reduced.

  According to the invention of claim 7, the end of the metal wiring body exposed from the holder and serving as the connection terminal protrudes from the side surface of the general part so as not to protrude from the extended line on the surface of the general part. The device can be made compact in the direction perpendicular to the surface of the heat sink.

  According to the invention of claim 8, since the end portion of the metal wiring body exposed from the holder and serving as the connection terminal protrudes in a substantially perpendicular direction rising from the surface of the general portion, the overall length of the holder can be shortened, It is suitable for installation in a space with no depth.

  According to the invention described in claim 9, since the connection portion that surrounds the connection terminal and guides the connection of the counterpart connection terminal protrudes from the general portion, the connection terminal of the counterpart can be protected when the connection terminal can be protected. The connection work becomes easy.

  According to the invention of claim 10, even when a force in a rotation direction centered on the fixed portion near the opening is applied to the holder when the connection terminal of the other party is inserted into the connecting portion at a position separated from the opening, The rotation can be reliably prevented by the pair of protrusions. Therefore, deformation and breakage of the holder can be prevented.

(First embodiment)
FIGS. 1-9 is a figure which shows 1st Embodiment of this invention.

  The headlamps arranged on the left and right sides of the front part of the automobile are composed of a plurality of lamp units. FIG. 1 is a basic structure showing the one lamp unit 1. The light emitting diode 2 is fixed to the upper surface (surface) of the heat sink 4 in an upward state. Above the light emitting diode 2, a reflector 5 based on an ellipsoid is installed. The light-emitting portion 6 of the light-emitting diode 2 matches the first focal point of the reflector 5, and the light L emitted from the light-emitting diode 2 is reflected forward by the reflector 5.

  A projector lens 7 is arranged in the front, and the light L reflected by the reflector 5 is guided to the projector lens 7 after passing through the second focal point F, and is irradiated from there to the front of the vehicle. A shade (not shown) is provided in the vicinity of the second focal point F, and light L from the projector lens 7 is irradiated forward of the vehicle with a light distribution pattern corresponding to the shape of the shade.

  Next, the fixing structure of the light emitting diode 2 will be described. The light emitting diode 2 emits white light and has a light emitting portion 6 in the center of a rectangular substrate 8. The rectangular substrate 8 is formed so that the vehicle width direction A is long and the vehicle longitudinal direction B is short. The substrate 8 has thermal conductivity, and power supply portions 9 for the cathode and the anode are formed on both sides of the upper surface in the vehicle width direction A, respectively.

  A resin (insulating material) holder 3 is used for fixing the light emitting diode 2 to the heat sink 4. The holder 3 includes a general part 10 that holds down the light emitting diode 2 and a connection part 12 that connects the harness 11.

  The general part 10 has a frame shape, and the front side has a barrel shape and the rear side has a rectangular shape. The general portion 10 is formed with an opening 13 for exposing the light emitting portion 6 of the light emitting diode 2. The lower side of the opening 13 is a recess 14 (see FIG. 9) that can accommodate the entire light emitting diode 2.

  Further, fixing holes 15 are formed on both sides of the opening 13 in the general portion 10 in the vehicle width direction A. Further, a non-circular guide hole 16 (in this example, a long hole shape) is formed behind the opening 13. As shown in FIG. 7, the length d from the opening 13 to the guide hole 16 is set shorter than the length D from the opening 13 to the front end of the holder 3 (length d <length D).

  The connecting portion 12 is bent at a right angle upward with respect to the general portion 10. Inside the holder 3, a plate-like metal wiring body 17 that penetrates both sides in the vehicle width direction A of the recess 14 from the general part 10 to the connection part 12 is insert-molded. Therefore, the metal wiring bodies 17 are exposed to the lower side on both sides in the vehicle width direction A of the concave portion 14 in the general portion 10.

  The rear side of the metal wiring body 17 is also bent upward corresponding to the connection portion 12, and the rear ends of the metal wiring body 17 are exposed as connection terminals 17 a and 17 b at the upper end portion of the connection portion 12. One connection terminal 17a is formed wide to distinguish the cathode and the anode.

  The terminal lock terminals 18a and 18b, which are finally crimped to the tip of the power supply harness 11, are inserted and connected to the connection terminals 17a and 17b.

  On the other hand, the upper surface (front surface) of the heat sink 4 is basically a flat surface, and the heat sink 4 itself is accurately positioned with respect to the reflector 5 and the projector lens 7 in advance.

  A rectangular pedestal 19 that matches the light-emitting diode 2 is formed at a fixed position of the light-emitting diode 2 on the upper surface of the heat sink 4. The upper surface of the pedestal 19 is also flat, and the position and angle are accurately set with respect to the reflector 5 and the projector lens 7.

  First convex portions 20 are formed on both sides of the pedestal portion 19 in the front-rear direction B, and second convex portions 21 are formed on both sides in the vehicle width direction A, respectively. The first convex portion 20 and the second convex portion 21 each have a standing wall shape formed from the upper surface of the heat sink 4.

  The first convex portion 20 is formed one by one in front of and behind the pedestal portion 19 along the vehicle width direction A, and has a length corresponding to most of the pedestal portion 19 except for both ends in the vehicle width direction A. have. Two second convex portions 21 are formed on both sides in the vehicle width direction A of the pedestal portion 19 in a state along the front-rear direction B, and are spaced apart with a central portion in the front-rear direction B being opened. The first convex portion 20 and the second convex portion 21 have the same height and protrude upward from the surface of the pedestal portion 19 by an amount corresponding to the thickness of the substrate 8 of the light emitting diode 2.

  Screw holes 22 corresponding to the fixing holes 15 of the holder 3 are formed on both sides of the pedestal 19 in the vehicle width direction A. A guide pin 23 having a shape corresponding to the guide hole 16 of the holder 3 protrudes behind the pedestal 19.

  When the light emitting diode 2 is attached to the heat sink 4 having the above-described structure using the holder 3, the light emitting diode 2 is first placed on the upper surface of the pedestal portion 19 formed on the upper surface of the heat sink 4. .

  Since a pair of first and second convex portions 20 and 21 are formed in the front-rear direction B and the vehicle width direction A, which are two orthogonal directions of the pedestal portion 19, they are placed on the upper surface of the pedestal portion 19. The light-emitting diode 2 is sandwiched in the front-rear direction B by the positioning guide surface 20a on the inner side surface of the first convex portion 20, and in the vehicle width direction A by the positioning guide surface 21a on the inner side surface of the second convex portion 21. At this time, the light emitting diode 2 is accurately positioned in a state where the position and angle of the light emitting diode 2 coincide with the upper surface of the pedestal portion 19.

  Next, the holder 3 is attached over the light emitting diode 2. The holder 3 is placed on the light emitting diode 2 with the general part 10 on the front side and the connection part 12 on the rear side. Then, the light emitting diode 2, the pedestal portion 19, the first convex portion 20, and the second convex portion 21 are accommodated in the concave portion 14 of the holder 3, and the lower surface of the general portion 10 is in close contact with the upper surface of the heat sink 4.

  In the holder 3 of this embodiment, since the connecting portion 12 is bent at a right angle, the front-rear length of the holder 3 is shortened, and various devices of the lighting device (not shown) are approaching the rear of the holder 3. Installation is easy even in such a space with no depth.

  At the same time that the holder 3 is in close contact with the upper surface of the heat sink 4, the guide pin 23 of the heat sink 4 is inserted into the guide hole 16 of the holder 3, and the fixing hole 15 of the holder 3 and the screw hole 22 of the heat sink 4 match. Further, the light emitting portion 6 of the light emitting diode 2 is exposed from the opening 13.

  Even when trying to match only the opening 13 and the light emitting portion 6 with the front and back of the holder 3 reversed, the guide pin 23 and the guide hole 16 do not match, and the guide pin 23 interferes with the front end of the general portion 10. Thus, the holder 3 does not adhere to the upper surface of the heat sink 4. This is due to the relationship of length d <length D described above. Thus, since the operator cannot attach the holder 3 upside down, it is possible to prevent erroneous assembly of the holder 3.

  A screw 24 as a fixing means is inserted into the fixing hole 15 of the holder 3 that is correctly covered with the light emitting diode 2, and is fixed to the screw hole 22. Then, the pair of metal wiring bodies 17 in the holder 3 come into contact with the power feeding portion 9 of the light emitting diode 2 respectively, and the power can be fed to the light emitting diode 2, and the power feeding portion 9 of the light emitting diode 2 is connected by the metal wiring body 17. By pressing, rattling of the light emitting diode 2 can be prevented.

  After the fixing of the light emitting diode 2 by the holder 3, the terminal lock terminals 18a and 18b are inserted and connected to the connection terminals 17a and 17b exposed at the connection portion 12 of the holder 3, respectively. Power can be supplied to the power supply unit 9 of the light emitting diode 2 via 17, and the light emitting unit 6 of the light emitting diode 2 can emit light.

  Hereinafter, the effect of the first embodiment will be described.

  According to the first embodiment, the light emitting diode 2 is placed on the pedestal portion 19 formed on the upper surface of the heat sink 4, and the light emitting diode 2 is moved back and forth by the positioning guide surfaces 20 a and 21 a formed on the surface of the heat sink 4. Since it is sandwiched in the direction B and the vehicle width direction A, the positional accuracy of the light emitting diode 2 with respect to the heat sink 4 is improved. That is, the positional accuracy of the light emitting diode 2 is not affected by the fixing condition of the holder 3 and is determined only by the relationship with the heat sink 4. Thus, since the positional accuracy of the light emitting diode 2 is improved, the relative positional accuracy of the lamp unit 1 with respect to the reflector 5 and the projector lens 7 is increased, and the optical performance of the lamp unit 1 itself is also improved.

  Further, according to the first embodiment, for example, as shown in FIG. 5, the positioning guide surfaces 20 a and 21 a are provided with the first convex portion 20 and the second convex in the standing wall shape projecting upward from the upper surface of the heat sink 4. It is provided on the inner surface of the part 21. Therefore, since the convex portions 20 and 21 abut on the side surface of the substrate 8 of the light emitting diode 2, the heat of the light emitting diode 2 is not only radiated from the back surface to the pedestal portion 19 side, but also from the side surface, the first convex portion 20 and Heat is dissipated through the second convex portion 21 and the heat dissipation performance by the heat sink 4 is improved.

Further, according to the first embodiment, the holder 3 is formed with the non-circular guide hole 16, and the guide pin 23 that is fitted into the guide hole 16 of the holder 3 is projected on the surface of the heat sink 4. . Therefore, when the holder 3 is attached in a different direction, the guide pin 23 of the heat sink 4 interferes with a portion other than the guide hole 16 of the holder. That is, if the holder 3 is not fixed to the heat sink 4 in a proper orientation, the guide pin 23 protruding from the heat sink 4 interferes with the holder 3 and cannot be fixed, so that erroneous assembly of the holder 3 can be prevented.

  In addition, according to the first embodiment, the holder 3 includes the frame-shaped general portion 10 having the opening 13 that exposes the light emitting portion 6 of the light emitting diode, and is embedded in the general portion 10 and a part of the power is supplied to the light emitting diode. The end portions of the metal wiring body 17 in contact with the portion 9 are exposed from the general portion 10 as connection terminals 17a and 17b for connecting the wiring. Therefore, since the connection terminals 17a and 17b can be configured at the end of the metal wiring body 17, it is not necessary to separately attach a terminal member to the metal wiring body 17, so that the number of parts can be reduced and the manufacturing cost can be reduced.

  Further, according to the first embodiment, the connection terminals 17 a and 17 b protrude from the surface of the general portion 10 of the holder 3 so as to rise in a substantially right angle direction. Therefore, the overall length of the holder 3 can be shortened, which is suitable for installation in a space having no depth.

  In addition, according to the first embodiment, the holder 3 protrudes from the general portion 10 of the holder 3, surrounds the periphery of the connection terminals 17 a and 17 b, and is the other connection terminals 18 a and 18 b with respect to the connection terminals 17 a and 17 b. The connection part 12 which guides the connection of is provided. For this reason, the connection portion 17 can protect the connection terminals 17a and 17b, and the connection work of the other connection terminals 18a and 18b is facilitated.

(Second Embodiment)
10-17 is a figure which shows 2nd Embodiment of this invention. This embodiment includes the same components as those in the first embodiment. Therefore, the same components are denoted by the same reference numerals, and redundant description is omitted.

  In this embodiment, a raised portion 26 having a contour matching the lower surface of the holder 3 is formed on the upper surface of the heat sink 25. The upper surface of the raised portion 26 is flat, and a pedestal portion 19, a first convex portion 20, a second convex portion 21, a screw hole 22, and a guide pin 23 are formed in the same manner as in the previous embodiment.

  And in the state corresponding to the connection part 12 behind the raised part 26, the standing part 27 is formed in a state adjacent to the raised part 26 with the connection part 12 sandwiched in the vehicle width direction A. Yes. Further, another standing wall-shaped protrusion 28 is formed at the rear end of the raised portion 26 in a state adjacent to the raised portion 26. Each of the protrusions 27 and 28 is higher than the raised portion 26, and the upper end protrudes higher than the upper end of the raised portion 26.

  First, the light emitting diode 2 is placed on the pedestal 19 formed on the upper surface of the raised portion 26 with respect to the heat sink 25 having such a structure. By placing the light emitting diode 2 on the pedestal portion 19, the light emitting diode 2 is accurately positioned as in the previous embodiment by the functions of the first convex portion 20 and the second convex portion 21.

  Next, the holder 3 is placed on the light emitting diode 2 and fixed to the raised portion 26. At this time, since the raised portion 26 has the same contour shape as the holder 3, an operator fixing the holder 3 can visually know the direction in which the holder 3 is fixed from the shape of the raised portion 26. The holder 3 can be fixed without making a mistake in the orientation.

  Even if the holder 3 is to be attached in the front-rear direction, the guide pin 23 interferes with the holder 3, so there is no risk of incorrect assembly.

  According to the second embodiment, the following effects can be obtained in addition to the effects of the first embodiment.

  According to the second embodiment, the raised portion 26 having a contour shape matching the back surface of the holder 3 is formed on the surface of the heat sink 4, and the light emitting diode 2 is fixed to the surface of the raised portion 26. Therefore, the operator who fixes the holder 3 can know visually the direction which fixes the holder 3 from the shape of the protruding part 26, and can fix the direction of the holder 3 without mistake.

  According to the second embodiment, the pair of protrusions 27 are formed on the surface of the heat sink 4, and the holder 3 is supported with the pair of protrusions 27 sandwiching the side surface of the holder 3. For this reason, erroneous assembly of the holder 3 can be prevented, and the mounting stability of the holder 3 is increased.

  Further, according to the second embodiment, the pair of protrusions 27 abut on the side surface of the connection part 12. Therefore, the contact area between the pair of protrusions 27 and the holder 3 can be increased, and the mounting stability of the holder is further increased.

  Further, since the pair of protrusions 27 are located away from the opening 13, after the holder 3 is fixed to the heat sink 25, the terminal lock terminals 18 a and 18 b are inserted into the connection terminals 17 a and 17 b of the connection part 12. Even if a force R (see FIG. 10) in the rotation direction about the fixed portion (screw 24) near the opening 13 is applied to the holder 3, the pair of protrusions 27 can prevent the rotation. Therefore, deformation and breakage of the holder 3 can be prevented.

  In each of the above embodiments, the holder 3 having the vertical structure in which the connection terminals 17a and 17b are bent at right angles from the general part 10 is taken as an example. It is good also as a horizontal type extended horizontally so that it may not protrude from the extended line of an upper surface. In this case, the apparatus can be made compact in the thickness direction of the holder 3.

  Further, a heat radiating sheet or heat radiating grease may be interposed between the back surface of the holder 3 and the heat sinks 4 and 25, and various other modifications are possible within the scope of the technical idea of the present invention. It is.

The perspective view which shows the internal structure of the headlamp which employ | adopted the light emitting diode fixing structure which concerns on 1st Embodiment of this invention. The perspective view which shows the light emitting diode fixing structure. The perspective view which shows the upper surface structure of a heat sink. The perspective view which shows the state which mounted the light emitting diode on the upper surface of a heat sink. Sectional drawing which follows the arrow SA-SA line in FIG. The disassembled perspective view which shows the light emitting diode fixing structure. The whole perspective view which shows a holder. Sectional drawing which follows the arrow SB-SB line in FIG. FIG. 10 is an exploded sectional view of the structure shown in FIG. 9. The perspective view which shows the light emitting diode fixing structure which concerns on 2nd Embodiment of this invention. The perspective view which shows the upper surface structure of a heat sink. The perspective view which shows the state which mounted the light emitting diode on the upper surface of a heat sink. Sectional drawing which follows the arrow SC-SC line in FIG. The disassembled perspective view which shows the light emitting diode fixing structure. The whole perspective view which shows a holder. Sectional drawing which follows the arrow SD-SD line in FIG. FIG. 17 is an exploded sectional view of the structure shown in FIG. 16.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lamp unit 2 Light emitting diode 3 Holder 4, 25 Heat sink 9 Power feeding part 10 General part 12 Connection part 13 Opening 16 Guide hole 17 Metal wiring body 17a, 17b Connection terminal 18a, 18b Terminal lock terminal 20 1st convex part 20a Positioning guide surface 21 2nd convex part 21a Positioning guide surface 23 Guide pin 24 Screw (fixing means)
26 Raised portion 27 Protruding portion A Vehicle width direction B Front-back direction d Length from opening to guide hole D Length from opening to holder front end F Second focus L Light R Force in rotation direction

Claims (10)

A light emitting diode having a light emitting portion on the surface and having a power feeding portion on both sides of the light emitting portion, a metal heat sink for placing the light emitting diode on the surface, an opening for exposing the light emitting portion of the light emitting diode, and A holder made of an insulating material having a pair of metal wiring bodies in contact with the pair of power supply units,
On the surface of the heat sink, a positioning guide surface that is in contact with a side surface of the light emitting diode in a state of sandwiching the light emitting diode in two orthogonal directions is formed,
A light emitting diode fixing structure for a lighting device, wherein the light emitting diode is mounted on a surface of the heat sink, and the holder is covered from the surface side of the light emitting diode and fixed to the surface of the heat sink.   2. The light emitting diode fixing structure for a lighting device according to claim 1, wherein the positioning guide surface is formed as a convex portion protruding in a standing wall shape from the surface of the heat sink.   A guide hole is formed in the holder and a guide pin inserted into the guide hole of the holder protrudes from the surface of the heat sink, and when the holder is attached in a different direction, the guide pin of the heat sink The light-emitting diode fixing structure for an illumination device according to claim 1 or 2, wherein the light-emitting diode fixing structure is set so as to interfere with a portion other than the guide hole of the holder.   The lighting device according to any one of claims 1 to 3, wherein a pair of protrusions that contact the side surface of the holder in a state in which the holder is sandwiched are formed on the surface of the heat sink. Light-emitting diode fixing structure.   5. A raised portion having a contour shape matching the back surface of the holder is formed on the surface of the heat sink, and the light emitting diode is fixed to the surface of the raised portion. The light emitting diode fixing structure for lighting apparatuses as described in a term.   The holder includes a frame-shaped general portion that has the opening and has the metal wiring body embedded therein with a part of the metal wiring body exposed, from the general portion to the metal wiring body. 6. The light-emitting diode fixing structure for an illumination device according to claim 1, wherein the connection terminal for connecting the wiring with the end portion exposed is used.   The lighting device according to claim 6, wherein the connection terminal protrudes substantially parallel to the surface of the general part from a side surface of the general part so as not to protrude from an extension line of the surface of the general part. Light-emitting diode fixing structure.   The light emitting diode fixing structure for an illuminating device according to claim 6, wherein the connection terminal protrudes in a substantially perpendicular direction rising from the surface of the general part.   The said holder part is provided with the connection part which protrudes from the general part of the said holder, encloses the circumference | surroundings of the said connection terminal, and guides the connection of the other party connection terminal with respect to the said connection terminal. Light-emitting diode fixing structure for a lighting device.   The light emitting diode fixing structure for a lighting device according to claim 9, wherein the pair of protrusions are in contact with a side surface of the connection portion.

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