JP2021012866A - Light source unit and vehicle lighting tool - Google Patents

Abstract

To provide a light source unit having a light-emitting element and a power supply attachment supported on a metal plate wherein a degree of freedom in the shape of a light control member and a degree of freedom in the arrangement of a connector part are improved.SOLUTION: A light source unit 30 is provided with, a power supply attachment 50, a power supply part 50A that contacts a light-emitting element 40 and supplies power, a connector 50B that is electrically connected to an external power source, and an intermediate part 50C that is located between the power supply part 50A and the connector 50B. The power supply part 50A is supported on a first plate surface 60a of the metal plate 60 together with the light-emitting element 40. The connector 50B is formed to open in a space S2 on the second plate surface 60b side of the metal plate 60. Thus, it is easy to allow the reflector 70 to be disposed in a free layout in the space S1 of the first plate surface 60a side of metal plate 60 and allow the connector part 50B of the power supply attachment 50 to be disposed in a state of opening in a free orientation in a space S2 of the second plate surface 60a side of the metal plate 60.SELECTED DRAWING: Figure 3

Description

The present invention relates to a light source unit in which a light emitting element and a power feeding attachment are supported by a metal plate, and a vehicle lamp equipped with the light source unit.

Conventionally, as a light source unit for a vehicle lamp or the like, a light source unit including a light emitting element and a power supply attachment for supplying electric power to the light emitting element has been known.

In general, the power supply attachment is between a power supply unit that abuts on a light emitting element to supply power, a connector unit that is electrically connected to an external power source, and the like, for example, as described in "Patent Document 1". It is configured to have an intermediate part located in.

"Patent Document 1" describes a configuration of a light source unit in which a light emitting element and a power feeding attachment are supported by a heat sink made of die casting.

On the other hand, "Patent Document 2" describes a configuration of a light source unit in which a light emitting element and a power feeding attachment are supported by a metal plate. The power supply attachment described in "Patent Document 2" is supported on the lower surface of the metal plate together with the light emitting element, and the connector portion thereof is formed so as to open in the space on the lower surface side of the metal plate.

Japanese Unexamined Patent Publication No. 2014-197550 JP-A-2018-92847

When the light emission output of the light source unit is relatively small, as described in the above "Patent Document 2", even if a metal plate is used instead of the die-cast heat sink, the heat dissipation function as the light source unit can be obtained. It becomes possible to secure.

However, in the light source unit described in "Patent Document 2", the connector portion of the power feeding attachment is formed so as to open in the space on the lower surface side (that is, the same side as the light emitting element) of the metal plate. There is a problem like.

That is, the vehicle lamp described in the above "Patent Document 2" has a configuration in which the light emitted from the light emitting element of the light source unit is reflected toward the front of the lamp by a reflector arranged below the light source unit. However, at that time, care must be taken so that the reflector does not interfere with the connector portion of the power supply attachment.

Therefore, in such a vehicle lamp, the degree of freedom in the shape of the light control member such as the reflector that controls the light from the light emitting element and the degree of freedom in the arrangement of the connector portion are reduced.

The present invention has been made in view of such circumstances, and in a light source unit in which a light emitting element and a power feeding attachment are supported by a metal plate, the degree of freedom in the shape of an optical control member and the degree of freedom in the arrangement of a connector portion are increased. It is an object of the present invention to provide a light source unit capable of providing a light source unit, and to provide a vehicle lamp equipped with the light source unit.

According to the present invention, the above object is achieved by devising the configuration of the power supply attachment.

That is, the light source unit according to the present invention is
In a light source unit including a light emitting element, a power supply attachment for supplying electric power to the light emitting element, and a metal plate supporting the light emitting element and the power feeding attachment.
The light emitting element is supported on the first plate surface of the metal plate.
The power supply attachment includes a power supply unit that abuts on the light emitting element to supply power, a connector portion that is electrically connected to an external power source, and an intermediate portion located between the power supply unit and the connector portion. I have
The power feeding unit is supported on the first plate surface of the metal plate.
The connector portion is characterized in that it is formed so as to open in a space on the second plate surface side of the metal plate.

The specific shape of the "metal plate" is not particularly limited, and may be simply formed in a flat plate shape, or may be bent into a region other than the region in which the light emitting element and the power feeding attachment are supported. It may be processed or cut and raised.

The material of the above-mentioned "metal plate" is not particularly limited, and for example, an aluminum plate, a copper plate, or the like can be adopted.

The orientation in which the "metal plate" is arranged is not particularly limited.

If the "connector portion" is formed so as to open in the space on the second plate surface side of the metal plate, the specific configuration such as its specific shape and opening direction is not particularly limited. Absent.

On the other hand, the vehicle lamp according to the present invention is a vehicle lamp provided with such a light source unit.
It is equipped with a reflector that reflects the light emitted from the light emitting element of the light source unit toward the front of the lamp.
The reflector is arranged below the light source unit.
The light source unit is characterized in that it is supported by the reflector on the metal plate with the first plate surface of the metal plate facing downward.

The light source unit according to the present invention has, as a power supply attachment for supplying electric power to a light emitting element, a power feeding unit that abuts on the light emitting element to supply power, a connector unit that is electrically connected to an external power source, and a connector unit thereof. Although it is configured to have an intermediate part located between them, the power supply part of the power supply attachment is supported by the first plate surface of the metal plate together with the light source, and the connector part of the power supply attachment is made of a metal plate. Since it is formed so as to open in the space on the second plate surface side, the following effects can be obtained.

That is, it is possible to easily arrange the optical control members such as the reflector in a space on the first plate surface side of the metal plate in a free layout. Further, the connector portion of the power feeding attachment can be easily arranged in a space on the second plate surface side of the metal plate in a state of being opened in any direction. Therefore, the degree of freedom in the shape of the optical control member and the degree of freedom in the arrangement of the connector portion can be increased.

As described above, according to the present invention, in the light source unit in which the light emitting element and the power feeding attachment are supported by the metal plate, the degree of freedom in the shape of the light control member and the degree of freedom in the arrangement of the connector portion can be increased.

In the above configuration, if the metal plate is further formed with an opening and the intermediate portion thereof is formed as a power feeding attachment so as to extend through the opening, the power feeding attachment can be made compact. It can be configured. Further, by adopting such a configuration, the metal plate is arranged in a relatively wide range around the light emitting element, so that the heat dissipation function of the light source unit can be enhanced.

In the above configuration, the light emitting element is further mounted on the first plate surface of the metal plate via the heat transfer grease, and the mounting area for mounting the light emitting element on the first plate surface of the metal plate is further provided. The light emitting element is pressed against the metal plate by the power supply attachment while the light emitting element is positioned in the mounting area by the plurality of protrusions after the protrusions for positioning the light emitting element are formed at each of the surrounding multiple places. With this configuration, the following effects can be obtained.

That is, the light emitting element can be supported on the metal plate without using an adhesive. Therefore, the step of applying the adhesive is not required, and the step of curing the adhesive while maintaining the position of the light emitting element is also unnecessary, so that the work process can be simplified.

In the case of adopting such a configuration, if the portion on the mounting region side at the tip of each protrusion is chamfered, the work of mounting the light emitting element in the mounting region can be smoothly performed. It can be carried out.

Further, in the case of adopting such a configuration, if the recessed portion is formed in the portion adjacent to each protrusion portion in the mounting region, the following effects can be obtained.

That is, since the corner R is inevitably formed at the connecting portion between each protrusion and the first plate surface of the metal plate, if the recessed portion is not formed, the light emitting element is a metal plate. There is a risk that the light emitting element will not be accurately mounted in the mounting area due to contact with the connecting portion of the.

On the other hand, by forming a recessed portion in a portion adjacent to each protrusion portion in the mounting region, it is possible to prevent the light emitting element from coming into contact with the connecting portion of the metal plate. As a result, the light emitting element can be accurately mounted in the mounting region.

In the above configuration, the light emitting element is further mounted on the first plate surface of the metal plate via the heat transfer grease, and the mounting area for mounting the light emitting element on the first plate surface of the metal plate is further provided. The light emitting element is pressed against the metal plate by the power feeding attachment after the protrusions for positioning the light emitting element with respect to the required direction are formed at the two surrounding places, and the light emitting element is attached to the power feeding attachment. If the urging piece for urging the light emitting element in the required direction is formed by the contact with the light emitting element, the following effects can be obtained.

That is, the light emitting element can be supported on the metal plate without using an adhesive. Therefore, the step of applying the adhesive is not required, and the step of curing the adhesive while maintaining the position of the light emitting element is also unnecessary, so that the work process can be simplified. Further, the light emitting element can be easily positioned in the mounting area.

In the above configuration, further, if the power supply attachment is supported on the metal plate by engaging the power supply attachment with the metal plate, the following effects can be obtained.

That is, since fixing by screw tightening is not required, the number of parts can be reduced and the work process can be simplified. Further, it is possible to prevent the light emitted from the light emitting element from being blocked by the screw head protruding from the power feeding attachment.

When such a configuration is adopted, a plurality of engaging pieces are formed on the power supply attachment and a plurality of engaging holes are formed on the metal plate, and then each engaging piece is formed as each engaging piece. If the tip is configured to engage with the metal plate while being inserted into the hole, the power supply attachment can be engaged with the metal plate by a simple configuration, and the metal plate can be engaged. , The power supply attachment can be easily positioned in the direction perpendicular to the surface of the metal plate.

At that time, if at least a part of the engaging pieces among the plurality of engaging pieces is formed with a contact portion that comes into contact with the inner wall surface of the engaging hole while being inserted into the engaging hole, power is supplied. With the attachment and the metal plate engaged, it is possible to easily position the power supply attachment in the direction along the surface of the metal plate.

Further, if the power feeding attachment and the metal plate are engaged with each other by caulking and fixing the metal plate to the power feeding attachment, the power feeding attachment is positioned in the direction perpendicular to and along the plane of the metal plate. Is easily possible.

In the above configuration, the pedestal portion is further formed on the first plate surface of the metal plate, and the mounting area for mounting the light emitting element on the first plate surface of the metal plate is provided on the pedestal portion. If it is configured to be located, the following effects can be obtained.

That is, even if the wall thickness of the power supply attachment is increased by the height of the pedestal portion, the light emitted from the light emitting element can be prevented from being blocked by the power supply attachment, which facilitates the manufacture of the power supply attachment. Can be done. Further, even when the power feeding attachment is supported on the metal plate by screw tightening, the light emitted from the light emitting element can be prevented from being shielded by the screw head protruding from the power feeding attachment.

On the other hand, the vehicle lamp according to the present invention has a configuration as a vehicle lamp provided with such a light source unit, which includes a reflector that reflects the light emitted from the light emitting element of the light source unit toward the front of the lamp. However, at that time, the reflector is arranged below the light source unit, and the light source unit is supported by the reflector on the metal plate with the first plate surface of the metal plate facing downward. The action effect can be obtained.

That is, since the light source unit is arranged with the second plate surface of the metal plate facing upward, the work of connecting the connector on the external power supply side to the connector portion of the power supply attachment can be easily performed. Can be done.

In the above configuration, if a plurality of sets of light source units and reflectors are arranged in a state of being arranged in the vehicle width direction, even if the light emission output of each set of light source units is reduced, irradiation from vehicle lamps is performed. Since the brightness required for light can be easily secured, the necessary heat dissipation function can be easily secured.

In the above configuration, the light source unit is further configured such that the opening formed in the metal plate is located on the rear side of the lamp of the light emitting element, and the connector portion is open toward the rear of the lamp. For example, the work of connecting the connector on the external power supply side to the connector portion can be performed more easily.

A plan sectional view showing a vehicle lamp provided with a light source unit according to an embodiment of the present invention. Section II-II sectional view of FIG. Detailed view of the main part of FIG. The IV direction arrow view of FIG. 3 showing the above light source unit as a single item. A diagram similar to FIG. 3, showing the operation of the above embodiment in comparison with a comparative example. A diagram similar to FIG. 3, showing a first modification of the above embodiment. The same figure as FIG. 3 which shows the 2nd and 3rd modification of the said Embodiment. A diagram similar to FIG. 3, showing a fourth modification of the above embodiment. IX direction arrow view of FIG. X-ray sectional view of FIG. Detailed view of the main part of FIG. Detailed view of the main part of FIG. A perspective view showing how the light source unit is assembled in the fourth modification. A diagram similar to FIG. 12, showing a fifth modification of the above embodiment. It is a figure for demonstrating the operation of the said 5th modification, (a) is the same figure as FIG. 14, (b) is the bb line sectional view of (a), (c) is (a). C-c line sectional view of The figure which shows the 6th modification of the said embodiment in the state which turned upside down from the state shown in FIG. A diagram similar to FIG. 16 showing a seventh modification of the above embodiment. A diagram similar to FIG. 16 showing an eighth modification of the above embodiment. The same figure as FIG. 10 which shows the 9th to 11th modification of the said embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a plan sectional view showing a vehicle lamp 10 provided with a light source unit 30 according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II of FIG.

In FIGS. 1 and 2, the direction indicated by X is the “front of the lamp”, the direction indicated by Y is the “left direction” orthogonal to the “front of the lamp” (“right direction” in the front view of the lamp), and is indicated by Z. The direction is "upward". The same applies to figures other than FIGS. 1 and 2.

As shown in FIGS. 1 and 2, the vehicle lamp 10 according to the present embodiment is a headlamp provided at the right front end of the vehicle, and is attached to the lamp body 12 and the front end opening of the lamp body 12. The three lamp units 20A, 20B, and 20C are incorporated in a lamp chamber formed by the transparent transparent cover 14 so as to be arranged in the vehicle width direction.

Each of the lamp units 20A to 20C is configured to include a light source unit 30 having a light emitting element 40 as a light source, and a reflector 70 arranged below the light source unit 30.

The light source unit 30 is arranged with the light emitting surface 40a of the light emitting element 40 facing downward.

The reflector 70 includes a reflecting surface 70a on which a plurality of reflecting elements 70s are formed, and each reflecting element 70s reflects the light emitted from the light emitting element 40 toward the front of the lamp.

A light source support portion 72 that supports the light source unit 30 is formed at the upper end portion of the reflector 70. Then, power is supplied to the light source unit 30 by connecting the connector 80 on the external power supply side from the rear side of the lamp to the light source unit 30 supported by the light source support portion 72.

The three lamp units 20A to 20C have different surface shapes of the reflecting elements 70s constituting the reflecting surface 70a of the reflector 70, but the other configurations are the same. The reflectors 70 of the three lamp units 20A to 20C are made of resin members and are integrally formed with each other.

The vehicle lamp 10 according to the present embodiment is configured to form a required light distribution pattern (for example, a low beam light distribution pattern) by the irradiation light from the three lamp units 20A to 20C.

FIG. 3 is a detailed view of a main part of FIG. Further, FIG. 4 is an arrow view in the IV direction of FIG. 3, showing the light source unit 30 as a single item.

As shown in FIGS. 3 and 4, the light source unit 30 has a configuration in which a light emitting element 40 and a power feeding attachment 50 for supplying electric power to the light emitting element 40 are supported by a metal plate 60.

The metal plate 60 is an aluminum plate having a constant plate thickness, and is arranged so as to extend along a horizontal plane. The metal plate 60 has a rectangular outer shape that is long in the front-rear direction of the lamp in a plan view.

The light emitting element 40 is a white light emitting diode, and its light emitting surface 40a is formed in a horizontally long rectangular shape. The light emitting element 40 has a configuration in which the element main body 40A having the light emitting surface 40a is supported by the main body support portion 40B, and is supported by the first plate surface 60a which is the lower surface of the metal plate 60 in the main body support portion 40B. There is. This support is performed by fixing the main body support portion 40B to the first plate surface 60a using, for example, an adhesive or the like.

The main body support portion 40B has a horizontally long rectangular outer shape in a plan view, and is electrically connected to the cathode electrode and the anode electrode of the element main body 40A at the positions on the left and right sides of the light emitting element 40 on the lower surface thereof. A pair of left and right terminal portions 40b are arranged.

The metal plate 60 is formed with an opening 60c at a position adjacent to the rear side of the lamp at a position supporting the light emitting element 40. The opening 60c has a rectangular inner peripheral surface shape.

The power supply attachment 50 is an intermediate portion located between the power supply unit 50A that abuts on the light emitting element 40 and supplies power, the connector portion 50B that is electrically connected to an external power source, and the power supply unit 50A and the connector portion 50B. It is equipped with 50C.

At that time, the feeding portion 50A is supported by the first plate surface 60a of the metal plate 60. Further, the intermediate portion 50C is formed so as to extend through the opening 60c of the metal plate 60. Further, the connector portion 50B is formed so as to open in the space S2 on the second plate surface 60b side, which is the upper surface of the metal plate 60.

Next, a specific configuration of the power supply attachment 50 will be described.

In the power supply attachment 50, a pair of left and right bus bar electrodes 54 for electrically conducting with the light emitting element 40 expose a part of the insulating member 52 formed so as to surround the light emitting element 40. It is configured as an insert molded product embedded in the state.

The insulating member 52 is formed so as to extend in a flat plate shape along a horizontal plane in the power feeding portion constituent region 52A located in the feeding portion 50A, and has a horizontally long rectangular outer shape in a plan view. A horizontally long rectangular opening 52a is formed at the center position in the left-right direction of the power feeding portion constituent area 52A, and a pair of left-right flange portions 52b protruding in the horizontal direction are formed on both left and right side surfaces thereof. It is formed.

A pair of left and right flange portions 52b are formed with a pair of left and right screw insertion holes 52f. On the other hand, the metal plate 60 is formed with a pair of left and right screw holes 60f at positions corresponding to a pair of left and right screw insertion holes 52f. Then, in a state where the power feeding portion constituent area 52A of the insulating member 52 is pressed against the first plate surface 60a of the metal plate 60 from below, the screws 56 are tightened into the screw holes 60f via the screw insertion holes 52f. As a result, the power supply attachment 50 is fixed to the metal plate 60.

Further, a pair of left and right positioning pins 52c are formed on the upper surface of the pair of left and right flange portions 52b. On the other hand, the metal plate 60 is formed with a pair of left and right engaging holes 60e at positions corresponding to a pair of left and right positioning pins 52c. At that time, one pair of left and right engaging holes 60e is formed in a circular shape, and the other is formed in a horizontally long rectangular shape. Then, when the power feeding portion constituent area 52A of the insulating member 52 is pressed against the first plate surface 60a of the metal plate 60, each positioning pin 52c is inserted into each engaging hole 60e, so that the power feeding attachment 50 is made of metal in the horizontal direction. It is positioned with respect to the plate 60.

The pair of left and right bus bar electrodes 54 includes two pairs of left and right terminal pieces 54a protruding into the opening 52a, and when these come into contact with the pair of left and right terminal portions 40b of the light emitting element 40, the light emitting element 40 and electricity are generated. It is designed to be connected.

Further, the pair of left and right bus bar electrodes 54 are provided with two pairs of front and rear holding pieces 54b protruding from the opening 52a, and these are in contact with the lower surface of the main body support portion 40B to position the light emitting element 40. It has become.

At that time, each terminal piece 54a and each holding piece 54b are configured as elastic pieces that elastically press the main body support portion 40B from the lower side.

The insulating member 52 is formed so that the intermediate portion constituent region 52C located in the intermediate portion 50C extends vertically upward from the rear end portion of the feeding portion constituent region 52A in a prismatic shape. The intermediate portion constituent region 52C is formed so as to be located at the center in the left-right direction of the feed portion constituent region 52A and has a narrower left-right width than the feed portion constituent region 52A. The intermediate portion constituent region 52C is formed so as to penetrate the opening 60c of the metal plate 60 in the vertical direction at a position near the front end surface thereof.

The insulating member 52 is formed so that the connector portion constituent area 52B located in the connector portion 50B extends horizontally from the upper end portion of the intermediate portion constituent area 52C toward the rear of the lamp. The connector portion constituent area 52B has the same left-right width as the intermediate portion constituent area 52C and extends in a square tubular shape, and is formed so as to open toward the rear of the lamp.

A rectangular hole 52d extending in the front-rear direction of the lamp is formed in the upper wall portion of the connector portion constituent area 52B, and a rectangular recess 52e is formed in the left and right side wall portions of the connector portion constituent area 52B. ing.

In the internal space of the connector portion constituent area 52B, a pair of left and right bus bar electrode 54 terminal pins 54c are arranged so as to project toward the rear of the lamp. The pair of left and right terminal pins 54c are formed so as to extend in a plate shape along the vertical plane. Then, the connector 80 on the external power supply side is inserted into the internal space of the connector portion constituent area 52B, and is fitted with the rectangular hole 52d and the pair of left and right recesses 52e, whereby the power supply attachment 50 is electrically connected to the external power supply. It is designed to be connected.

The opening 60c of the metal plate 60 is provided so that the intermediate portion 50C and the connector portion 50B of the power feeding attachment 50 do not interfere with the metal plate 60 when the power feeding attachment 50 is attached to the first plate surface 60a of the metal plate 60. The position of the rear edge is formed so as to be located on the rear side of the lamp with respect to the rear end surface of the connector portion 50B.

As shown in FIGS. 1 and 2, the light source unit 30 is supported by the reflector 70 by caulking and fixing at three points of the light source supporting portion 72.

In order to realize this, as shown by the alternate long and short dash line in FIG. 3, caulking pins 72a extending upward are formed at three positions of the light source support portion 72 of the reflector 70, and the metal plate 60 of the light source unit 30 is formed. Insertion holes 60d for inserting the caulking pin 72a are formed at the three locations. Then, when the metal plate 60 of the light source unit 30 is placed on the upper surface of the light source support portion 72 of the reflector 70, the caulking pins 72a are hot-caulked to the tip portions of the caulking pins 72a in a state of being inserted into the insertion holes 60d. Is applied so that the light source unit 30 is fixed to the reflector 70.

Next, the action and effect of this embodiment will be described.

The vehicle lamp 10 according to the present embodiment includes three lamp units 20A, 20B, and 20C, and the light source unit 30 of each lamp unit 20A to 20C is a power supply attachment for supplying power to the light emitting element 40. As 50, a power feeding unit 50A that abuts on the light emitting element 40 to supply power, a connector unit 50B that is electrically connected to an external power source, and an intermediate unit 50C located between them are provided, and The power supply portion 50A of the power supply attachment 50 is supported by the first plate surface 60a of the metal plate 60 together with the light source 40, and the connector portion 50B of the power supply attachment 50 is the space S2 on the second plate surface 60b side of the metal plate 60. Since it is formed so as to open in, the following effects can be obtained.

That is, in the present embodiment, the reflector 70 can be easily arranged in a free layout in the space S1 on the first plate surface 60a side of the metal plate 60. Further, the connector portion 50B of the power feeding attachment 50 can be easily arranged in the space S2 on the second plate surface 60b side of the metal plate 60 in a state of being opened in any direction. Therefore, the degree of freedom in the shape of the reflector 70 and the degree of freedom in the arrangement of the connector portion 50B can be increased.

This point will be specifically described with reference to FIG.

FIG. 5A is a diagram similar to FIG. 3 showing the light source unit 30 according to the present embodiment. On the other hand, FIG. 5B is a diagram similar to FIG. 5A showing a light source unit 530 as a comparative example of the present embodiment.

As shown in FIG. 5B, also in the light source unit 530 according to the comparative example, the power feeding unit 550A of the power feeding attachment 550 is supported together with the light emitting element 40 by the first plate surface 560a of the metal plate 560. However, the connector portion 550B of the power supply attachment 550 is formed so as to open in the space S1 on the first plate surface 560a side instead of the space S2 on the second plate surface 560b side of the metal plate 560 as in the present embodiment. In that respect, the configuration is different from that of the present embodiment.

In the light source unit 530, the connector portion 550B of the power feeding attachment 550 is formed so as to project downward from the lower surface of the power feeding unit 550A in the space S1 on the first plate surface 560a side. Along with this, the reflector 570 has a configuration in which the upper region of the reflecting surface 570a is missing in order to prevent it from interfering with the connector portion 550B of the power feeding attachment 550. Therefore, the light emitted from the light emitting element 40 cannot be used as effectively as the reflected light by the reflector 570.

On the other hand, as shown in FIG. 5A, in the light source unit 30 according to the present embodiment, the connector portion 50B of the power feeding attachment 50 is formed so as to open in the space S2 on the second plate surface 60b side of the metal plate 60. Therefore, in the space S1 on the first plate surface 60a side, there is no portion protruding downward from the lower surface of the feeding portion 50A, and the upper region of the reflecting surface 70a of the reflector 70 is not missing. Therefore, the light emitted from the light emitting element 40 can be used as effectively as the reflected light by the reflector 70.

As described above, according to the present embodiment, in the vehicle lamp 10 provided with the light source unit 30 in which the light emitting element 40 and the power supply attachment 50 are supported by the metal plate 60, the degree of freedom in the shape of the reflector 70 as an optical control member and the connector. The degree of freedom in arranging the portion 50B can be increased.

Moreover, in the light source unit 30 according to the present embodiment, since the intermediate portion 50C of the power feeding attachment 50 is formed so as to extend through the opening 60c formed in the metal plate 60, the power feeding attachment 50 is made compact. It can be configured as such. Further, by adopting the structure in which the opening 60 is formed in the metal plate 60 in this way, the metal plate 60 is compared with the case where, for example, a recess is formed in the rear end surface of the metal plate 60. Is arranged over a wider area around the light emitting element 40, so that the heat dissipation function of the light source unit 30 can be enhanced.

Further, in the vehicle lamp 10 according to the present embodiment, since the three lamp units 20A to 20C are arranged side by side in the vehicle width direction, the light emission output of the light source unit 30 of each lamp unit 20A to 20C is reduced. Even so, the brightness required for the irradiation light from the vehicle lamp 10 can be easily secured. Therefore, the heat dissipation function required for each lamp unit 20A to 20C can be easily secured by the metal plate 60.

Moreover, each of the lamp units 20A to 20C has a configuration in which the reflector 70 is arranged below the light source unit 30, and the light source unit 30 is made of metal with the first plate surface 60a of the metal plate 60 facing downward. Since the plate 60 is supported by the reflector 70, the following effects can be obtained.

That is, since the light source unit 30 is arranged with the second plate surface 60b of the metal plate 60 facing upward, the connector 80 on the external power supply side is connected to the connector portion 50B of the power supply attachment 50. The work can be done easily.

Further, in the light source unit 30, since the opening 60c formed in the metal plate 60 is located on the rear side of the lamp of the light emitting element 40 and the connector portion 50B is open toward the rear of the lamp, the connector portion The work of connecting the connector 80 on the external power supply side to the 50B can be more easily performed by sliding the connector 80 along the second plate surface 60b of the metal plate 60.

In the above embodiment, the intermediate portion 50C of the power feeding attachment 50 has been described as being located in the opening 60c of the metal plate 60, but the configuration or metal located in the recess formed on the rear end surface of the metal plate 60. It is also possible to configure the plate 60 to be located near the rear end surface or the side end surface.

In the above embodiment, the power supply attachment 50 has been described as being fixed to the metal plate 60 by screw tightening on the pair of left and right flange portions 52b of the insulating member 52, but it is fixed by clipping or the like. It is also possible.

In the above embodiment, the power supply attachment 50 and the light emitting element 40 are electrically connected by the two pairs of left and right terminal pieces 54a of the pair of left and right bus bar electrodes 54 contacting the pair of left and right terminal portions 40b of the light emitting element 40. However, the configuration is not limited to the arrangement of the above embodiment, and if the pattern shape of the pair of left and right terminal portions 40b is different from the pattern shape of the above embodiment, it corresponds to this. The arrangement of the two pairs of left and right terminal pieces 54 can also be different from that of the above embodiment.

For example, when the pair of left and right terminal portions 40b of the light emitting element 40 are formed so as to extend from both the left and right sides of the main body support portion 40B of the light emitting element 40 toward the front of the lamp, the pair of left and right bus bar electrodes 54 are used. The two pairs of left and right terminal pieces 54a can be in contact with the pair of left and right terminal portions 40b of the light emitting element 40 on the front side of the lamp from the main body support portion 40B of the light emitting element 40, and the light emitting element. When one terminal portion 40b extends toward the front of the lamp and the other terminal portion 40b extends toward the rear of the lamp from the left and right sides of the main body support portion 40B of the 40, a pair of left and right bus bars As the electrode 54, one terminal piece 54a comes into contact with the terminal part 40b of the light emitting element 40 on the front side of the lamp from the main body support part 40B of the light emitting element 40, and the other terminal piece 54a comes from the main body support part 40B of the light emitting element 40. The lamp can also be configured to come into contact with the terminal portion 40b of the light emitting element 40 on the rear side of the lamp.

Further, instead of the two pairs of left and right terminal pieces 54a, a pair of left and right terminal pieces 54a and three or more pairs of left and right terminal pieces 54a may be provided.

In the above embodiment, it has been described that the light source unit 30 is supported by the reflector 70 by caulking, but it is also possible to use a configuration such as screw tightening.

In the above embodiment, the vehicle lamp 10 has been described as having three lamp units 20A to 20C, but it is also possible to configure the vehicle lamp 10 to include two or less or four or more lamp units.

Next, a modified example of the above embodiment will be described.

First, a first modification of the above embodiment will be described.

FIG. 6 is a diagram similar to FIG. 3 showing the light source unit 130 according to this modification.

As shown in FIG. 6, the basic configuration of this modification is the same as that of the above embodiment, but the configuration of the metal plate 160 is partially different from that of the above embodiment.

That is, also in the light source unit 130 according to this modification, the power feeding portion 50A of the power feeding attachment 50 is supported together with the light emitting element 40 by the first plate surface 160a which is the lower surface of the metal plate 160, and the connector of the power feeding attachment 50. The portion 50B is formed so as to open in the space S2 on the second plate surface 160b side, which is the upper surface of the metal plate 160, but the metal plate 160 of this modified example has the rear end portion 160d toward the vertical downward direction. It is different from the case of the above embodiment in that the extending downward extension portion 160e is formed.

The lower extension portion 160e is formed by bending the metal plate 160, whereby the rear end portion 160d of the metal plate 160 is configured as a cylindrical convex curved surface in which the surface on the second plate surface 160b side extends in the left-right direction. Has been done.

Also in the light source unit 130 according to this modification, the metal plate 160 is formed with the same opening 160c as in the above embodiment. The power supply attachment 50 is formed so that its intermediate portion 50C extends through the opening 160c.

Even when the configuration of this modification is adopted, the same action and effect as in the case of the above embodiment can be obtained.

On top of that, by adopting the configuration of this modification, the heat capacity of the metal plate 160 can be increased, and thereby the heat dissipation function of the light source unit 30 can be further enhanced.

Moreover, in this modification, since the surface of the rear end portion 160d of the metal plate 160 on the side of the second plate surface 160b is configured as a cylindrical convex curved surface extending in the left-right direction, it is external to the connector portion 50B of the power supply attachment 50. When connecting the connector 80 on the power supply side, the connector 80 can be smoothly slid along the second plate surface 160b of the metal plate 160.

Next, a second modification of the above embodiment will be described.

FIG. 7A is a diagram substantially similar to FIG. 3 showing the light source unit 230 according to this modification.

As shown in FIG. 7A, the basic configuration of this modification is the same as that of the above embodiment, but the configuration of the power supply attachment 250 is partially different from that of the above embodiment.

That is, the power supply attachment 250 of this modified example also has a power supply unit 250A that abuts on the light emitting element 40 to supply power, a connector portion 250B that is electrically connected to an external power source, and an intermediate portion 250C located between them. The power supply unit 250A of the power supply attachment 250 is supported by the first plate surface 60a of the metal plate 60 together with the light emitting element 40, and the connector portion 250B of the power supply attachment 250 is the second plate of the metal plate 60. Although it is formed so as to open in the space S2 on the surface 60b side, it differs from the case of the above embodiment in that the connector portion 250B opens diagonally upward instead of horizontally toward the rear of the lamp. ing.

Even when the configuration of this modification is adopted, the same action and effect as in the case of the above embodiment can be obtained.

On top of that, by adopting the configuration of this modification, it is possible to easily connect the connector 80 on the external power supply side to the connector portion 250B of the power supply attachment 250 from diagonally upward direction behind the lamp. It becomes.

Next, a third modification of the above embodiment will be described.

FIG. 7B is a diagram substantially similar to FIG. 3 showing the light source unit 330 according to this modification.

As shown in FIG. 7B, the basic configuration of this modification is the same as that of the above embodiment, but the configuration of the power supply attachment 350 is partially different from that of the above embodiment. Along with this, the configuration of the metal plate 360 is also partially different from that of the above embodiment.

That is, the power supply attachment 350 of this modified example also has a power supply unit 350A that abuts on the light emitting element 40 to supply power, a connector portion 350B that is electrically connected to an external power source, and an intermediate portion 350C located between them. The power supply unit 350A of the power supply attachment 350 is supported by the first plate surface 360a of the metal plate 360 together with the light emitting element 40, and the connector portion 350B of the power supply attachment 350 is the second plate of the metal plate 360. Although it is formed so as to open in the space S2 on the surface 360b side, it differs from the case of the above embodiment in that the connector portion 350B opens vertically upward.

Even when the configuration of this modification is adopted, the same action and effect as in the case of the above embodiment can be obtained.

On top of that, by adopting the configuration of this modification, the work of connecting the connector 80 on the external power supply side to the connector portion 350B of the power supply attachment 350 can be performed from directly above. Therefore, workability can be improved depending on the configuration of the vehicle lamp 10.

Further, also in the light source unit 330 according to the present modification, the intermediate portion 350C of the power supply attachment 350 is formed so as to extend through the opening 360c of the metal plate 360, but the power supply attachment 350 is formed with the connector portion 350B. Since the intermediate portion 350C is formed with the same front-rear width, the power supply attachment 350 can be made more compact than the case of the above embodiment. Further, as a result, the front-rear width of the opening 360c can be narrowed as compared with the case of the above embodiment, so that the heat capacity of the metal plate 360 can be increased by that amount, thereby further enhancing the heat dissipation function of the light source unit 330. Can be enhanced.

Next, a fourth modification of the above embodiment will be described.

FIG. 8 is a diagram similar to FIG. 3, showing the lamp unit 620A according to the present modification. 9 is a view taken along the line IX in FIG. 8, and FIG. 10 is a cross-sectional view taken along line XX of FIG. Further, FIG. 11 is a detailed view of the main part of FIG. 8, and FIG. 12 is a detailed view of the main part of FIG.

As shown in FIGS. 8 to 12, the basic configuration of this modification is the same as that of the above embodiment, but the configuration of the light source unit 630 is partially different from that of the above embodiment. The configuration of the reflector 670 is also partially different from that of the above embodiment.

Similar to the case of the above embodiment, the light source unit 630 has a configuration in which the light emitting element 640 and the power supply attachment 650 are supported by the metal plate 660. The light source unit 630 is supported by the reflector 670 on the metal plate 660 with the light emitting surface 640a of the light emitting element 640 facing downward.

The reflector 670 has a reflection surface 670a similar to that of the above embodiment, and a light source support portion 672 is formed at the upper end portion thereof. The reflector 670 is caulked and fixed to the metal plate 660 in a state where the caulking pins 672a formed at three positions of the light source support portion 672 are inserted into the insertion holes 660j formed in the metal plate 660.

In the light source unit 630, as in the case of the above embodiment, the power feeding unit 650A of the power feeding attachment 650 is supported together with the light emitting element 640 on the first plate surface 660a which is the lower surface of the metal plate 660, and the connector of the power feeding attachment 650. The portion 650B is formed so as to open in the space S2 on the second plate surface 660b side, which is the upper surface of the metal plate 660.

Also in this modification, the metal plate 660 is formed with an opening 660c on the rear side of the lamp from the light emitting element 640, and the power supply attachment 650 is formed so that the intermediate portion 650C extends through the opening 660c. ing. Then, as in the case of the first modification, the metal plate 660 is formed with a downward extension portion 660e extending vertically downward from the rear end portion 660d.

The light emitting element 640 has a configuration in which an element main body 640A having a light emitting surface 640a formed in a horizontally long rectangular shape is supported by a main body support portion 640B, and is supported by a metal plate 660 in the main body support portion 640B.

Specifically, the light emitting element 640 is placed on the first plate surface 660a of the metal plate 660 via the heat transfer grease 642, and is pressed against the metal plate 660 by the power supply attachment 650, whereby the metal plate is pressed. It is supported by 660.

The main body support portion 640B has a horizontally long rectangular outer shape in a plan view, and is electrically connected to the cathode electrode and the anode electrode of the element main body 640A at the positions on the left and right sides of the light emitting element 640 on the lower surface thereof. A pair of left and right terminal portions 640b are arranged.

In the power supply attachment 650, a pair of left and right bus bar electrodes 654 for electrically conducting with the light emitting element 640 expose a part of the insulating member 652 formed so as to surround the light emitting element 640. It is configured as an insert molded product embedded in the state.

The insulating member 652 is formed so as to extend in a flat plate shape along a horizontal plane in the power feeding portion constituent region 652A located in the feeding portion 650A, and has a horizontally long rectangular outer shape in a plan view. A horizontally long rectangular opening 652a is formed at the center position in the left-right direction of the power feeding portion constituent region 652A.

The pair of left and right bus bar electrodes 654 includes a pair of left and right terminal pieces 654a projecting from the rear inner peripheral surface of the feeding portion constituent region 652A toward the opening 652a, and these are a pair of left and right terminal pieces of the light emitting element 640. It is electrically connected to the light emitting element 640 by coming into contact with the terminal portion 640b. Each terminal piece 654a is configured as an elastic piece that elastically presses the main body support portion 640B from below in the opening 652a, thereby supporting the light emitting element 640.

A pair of left and right flange portions 652b protruding in the horizontal direction are formed on the left and right side surface portions of the power feeding portion constituent region 652A of the insulating member 652.

The pair of left and right flange portions 652b are formed in a state of being offset upward with respect to the feeding portion constituent region 652A. A pair of left and right flange portions 652b are formed with a pair of left and right screw insertion holes 652f.

On the other hand, in the metal plate 660, the region located on the left and right pair of flange portions 652b is offset upward, so that a pair of left and right substantially rectangular recesses 660 m are formed on the first plate surface 660a. There is. The depth of each recess 660 m is set to substantially the same value as the wall thickness of the flange portion 652 b. The metal plate 660 is formed with a pair of left and right screw holes 660f at positions corresponding to a pair of left and right screw insertion holes 652f.

Further, a pair of left and right positioning pins 652c projecting upward are formed at positions on both the left and right sides of the opening 652a in the power feeding portion constituent area 652A. Each positioning pin 652c has a base end formed in a columnar shape and a tip end portion formed in a conical shape.

On the other hand, the metal plate 660 is formed with a pair of left and right engaging holes 660k at positions corresponding to a pair of left and right positioning pins 652c. At that time, one pair of left and right engaging holes 660k is formed in a circular shape, and the other is formed in an oval shape long in the left-right direction.

Then, in a state where the pair of left and right flange portions 652b of the insulating member 652 are pressed from the lower side against the pair of left and right recesses 660 m of the first plate surface 660a of the metal plate 660, each screw is passed through the screw insertion holes 652f. By tightening the screw 656 into the hole 660f, the power supply attachment 650 is fixed to the metal plate 660. At that time, by inserting each positioning pin 652c into each engaging hole 660k, the power feeding attachment 650 is positioned with respect to the metal plate 660 in the horizontal direction.

The insulating member 652 is formed so that the intermediate portion constituent region 652C located at the intermediate portion 650C extends vertically upward from the rear end portion of the feeding portion constituent region 652A in a prismatic shape. The intermediate portion constituent region 652C is formed so as to be located at the center in the left-right direction of the feed portion constituent region 652A and has a left-right width narrower than that of the feed portion constituent region 652A. The intermediate portion constituent region 652C is formed so as to penetrate the opening 660c of the metal plate 660 in the vertical direction at a position near the front end surface thereof.

The insulating member 652 is formed so that the connector portion constituent region 652B located in the connector portion 650B extends horizontally from the upper end portion of the intermediate portion constituent area 652C toward the rear of the lamp. The connector portion constituent region 652B has the same left-right width as the intermediate portion constituent region 652C and extends in a square tubular shape, and is formed so as to open toward the rear of the lamp.

A rectangular hole 652d extending in the front-rear direction of the lamp is formed on the upper wall portion of the connector portion constituent area 652B, and a rectangular recess 652e is formed on the left and right side wall portions of the connector portion constituent area 652B. ing.

In the internal space of the connector portion constituent area 652B, a pair of left and right bus bar electrode 654 terminal pins 654c are arranged so as to project toward the rear of the lamp. The pair of left and right terminal pins 654c are formed so as to extend in a plate shape along the vertical plane. Then, the connector 80 on the external power supply side is inserted into the internal space of the connector portion constituent area 652B and is fitted with the rectangular hole 652d and the pair of left and right recesses 652e so that the power supply attachment 650 is electrically connected to the external power supply. It is designed to be connected.

FIG. 13 is a perspective view showing a state in which the light emitting element 640 is placed on the first plate surface 660a of the metal plate 660 when viewed from diagonally below. That is, in FIG. 13, the metal plate 660 is shown upside down from the state shown in FIG.

As shown in FIG. 13, on the first plate surface 660a of the metal plate 660, protrusions for positioning the light emitting element 640 are provided at four locations surrounding the mounting area A for mounting the light emitting element 640. 660 g are formed respectively. Then, the light emitting element 640 is pressed against the metal plate 660 by the power feeding attachment 650 in a state of being positioned in the mounting region A by the four protrusions 660g.

Each protrusion 660 g is formed in a substantially rectangular parallelepiped shape, and a chamfered 660 g 1 is provided on a portion of the tip portion on the mounting region A side. Each protrusion 660g is formed by plastically deforming a part of the metal plate 660 when the metal plate 660 is press-formed into an L shape.

On the first plate surface 660a of the metal plate 660, a recessed portion 660i is formed in a portion adjacent to each protrusion 660g in the mounting region A. Each recessed portion 660i has an elongated rectangular shape surrounding the inner side surface (that is, the surface on the mounting region A side) of each protruding portion 660 g. Each of the protrusions 660g is formed so that its inner surface extends to the bottom surface of each recess 660i. The depth of each recessed portion 660i is set to a value equal to or slightly larger than the size of the corner R formed at the base end position of the inner surface of each protruding portion 660 g.

Then, after arranging the metal plate 660 so that the first plate surface 660a faces upward, the bottom surface of the main body support portion 640B of the light emitting element 640 is coated with the heat transfer grease 642 (or the first metal plate 660). (With thermal paste 642 applied to the mounting area A of the plate surface 660a), the light emitting element 640 is inserted between the four protrusions 660g and pressed against the first plate surface 660a of the metal plate 660. The light emitting element 640 is placed on the first plate surface 660a of the metal plate 660 in a state of being positioned in the mounting region A.

At that time, since each of the protrusions 660g is chamfered 660g1, the light emitting element 640 is smoothly guided to the mounting region A while being guided by the four protrusions 660g.

Further, since the recessed portion 660i is formed on the first plate surface 660a of the metal plate 660 in a portion adjacent to each protruding portion 660g in the mounting region A, the base end position of the inner surface of each protruding portion 660g is formed. Even if some corners R are formed in the light emitting element 640, the light emitting element 640 is accurately mounted in the mounting region A.

As shown in FIGS. 10 and 11, a substantially rectangular parallelepiped recess 660h is formed on the second plate surface 660b of the metal plate 660 at a position substantially directly above each protrusion 660g, whereby the metal plate 660 is formed. The shape accuracy of each protrusion 660 g formed by plastic deformation is improved.

Even when the configuration of this modification is adopted, the same action and effect as in the case of the above embodiment can be obtained.

Further, in the light source unit 630 according to the present modification, the light emitting element 640 is placed on the first plate surface 660a of the metal plate 660 via the thermal paste 642, and on the first plate surface 660a of the metal plate 660. Projections 660 g for positioning the light emitting element 640 are formed at four locations surrounding the mounting area A for mounting the light emitting element 640, and the light emitting element 640 has four protrusions 660 g on the protrusions 660 g. Since the metal plate 660 is pressed against the metal plate 660 by the power supply attachment 650 in a state of being positioned in the mounting area A by the above, the following effects can be obtained.

That is, the light emitting element 640 can be supported on the metal plate 660 without using an adhesive. Therefore, the step of applying the adhesive is not required, and the step of curing the adhesive while maintaining the position of the light emitting element 640 is also unnecessary, so that the work process can be simplified.

Moreover, in this modification, the chamfering 660 g1 is provided on the portion of the tip of each protrusion 660 g on the mounting region A side, so that the work of mounting the light emitting element 640 on the mounting region A is smooth. It can be carried out.

Further, in the present modification, since the recessed portion 660i is formed in the portion adjacent to each protruding portion 660g in the mounting region A, the following effects can be obtained.

That is, since the corner R is inevitably formed at the connecting portion between each protrusion 660 g and the first plate surface 660a of the metal plate 660, if the recessed portion 660i is not formed, light emission is emitted. The element 640 may come into contact with the connecting portion of the metal plate 660, and the light emitting element 640 may not be accurately mounted in the mounting area A.

On the other hand, in this modified example, since the recessed portion 660i is formed in the portion adjacent to each protruding portion 660 g in the mounting region A, the light emitting element 640 comes into contact with the connecting portion of the metal plate 660. It can be prevented so that the light emitting element 640 is accurately mounted in the mounting region A.

Next, a fifth modification of the above embodiment will be described.

FIG. 14 is a diagram similar to FIG. 12, showing a main part of the light source unit according to the present modification.

As shown in FIG. 14, the basic configuration of this modification is the same as that of the fourth modification, but the configurations of the metal plate 760 and the power supply attachment 750 are partially different from those of the fourth modification. ing.

That is, the metal plate 760 positions the light emitting element 640 at two places on the front side and the left side of the lamp among the four places surrounding the mounting area for mounting the light emitting element 640 on the first plate surface 760a. 760 g of protrusions for this purpose are formed, but 760 g of protrusions are not formed on the rear side and the right side of the lamp.

Also in this modification, a recessed portion 760i is formed in a portion adjacent to each protruding portion 760g in the mounting region of the first plate surface 760a. On the other hand, the portion of each protrusion 760 g on the mounting region side is not chamfered.

The power supply attachment 750 includes an insulating member 752 formed so as to surround the light emitting element 640, and a pair of left and right bus bar electrodes 754 projecting from the rear inner peripheral surface of the power supply portion constituent region 752A toward the opening 752a. However, the configuration of the power feeding unit configuration area 752A is partially different from that of the fourth modification.

That is, the feeding portion constituent area 752A is provided with a rectangular urging piece 752 g projecting from the rear inner peripheral surface toward the opening 752a and a rectangular urging piece projecting from the right inner peripheral surface toward the opening 752a. A force piece 752h is formed.

The urging piece 752 g is formed to be wider than the protrusion 760 g at a position facing the protrusion 760 g on the front side of the lamp, and its tip surface is related to the tip surface of the protrusion 760 g on the front side of the lamp and the mounting area. It is formed in a symmetrical positional relationship. The corner portion of the metal plate 760 on the first plate surface 760a side at the tip end portion of the urging piece 752 g is chamfered, whereby an inclined surface 752 g1 is formed.

Further, the urging piece 752h is formed to be wider than the protrusion 760g at a position facing the protrusion 760g on the left side, and its tip surface is symmetrical with respect to the tip surface of the protrusion 760g on the left side and the mounting area. It is formed by the positional relationship of. The corner portion of the metal plate 760 on the first plate surface 760a side at the tip end portion of the urging piece 752h is chamfered, whereby the inclined surface 752h1 is formed.

Then, in this modification, the protrusions 660 g formed at two positions on the first plate surface 660a of the metal plate 660 and the urging pieces 752 g and 752 h formed at two positions on the insulating member 752 of the power supply attachment 750 are used. , The light emitting element 640 is positioned in the mounting area thereof.

15A and 15B are views showing a state in which the light emitting element 640 is mounted on the first plate surface 760a of the metal plate 760, FIG. 15A is a view similar to FIG. 14, and FIG. 15B is a view shown in FIG. It is the bb line sectional view of a), and (c) is the cc line sectional view of (a).

As shown in FIG. 15A, the metal plate 760 is arranged so that the first plate surface 760a faces upward, and then the heat transfer grease 642 is applied to the bottom surface of the main body support portion 640B of the light emitting element 640. , The light emitting element 640 is placed on the first plate surface 760a at a position obliquely rearward from the two protrusions 760g.

After that, as shown in FIG. 15B, when the insulating member 752 of the power feeding attachment 750 is brought closer to the metal plate 760 from the upper side (see arrow D), the inclined surface 752g1 of the urging piece 752g becomes the element main body of the light emitting element 640. It abuts on the rear end corner of 640A. As a result, the light emitting element 640 is pressed toward the front of the lamp (see arrow F). Since the light emitting element 640 is placed on the first plate surface 760a of the metal plate 760 via the heat transfer grease 642, it slides forward of the lamp and comes into contact with the protrusion 760 g on the front side of the lamp. Then, the rear end corner of the element body 640A deviates from the inclined surface 752g1 of the urging piece 752g, and the tip surface of the urging piece 752g descends along the rear end surface of the element body 640A, so that the light emitting element 640 is a lamp. It is sandwiched from both front and rear sides by the protrusion 760 g on the front side and the urging piece 752 g.

Further, as shown in FIG. 15C, when the insulating member 752 of the power feeding attachment 750 is brought close to the metal plate 760 from the upper side, the inclined surface 752h1 of the urging piece 752h is the right end of the main body support portion 640B of the light emitting element 640. It abuts on the corner (the leftmost corner in FIG. 15C). As a result, the light emitting element 640 is pressed to the left (see arrow L) and slides to the left to come into contact with the protrusion 760 g on the left side. Then, the right end corner of the main body support portion 640B deviates from the inclined surface 752h1 of the urging piece 752h, and the tip surface of the urging piece 752h descends along the right end surface of the main body support portion 640B, whereby the light emitting element 640 It is sandwiched from both the left and right sides by the protrusion 760 g on the left side and the urging piece 752 h.

In this way, when the power supply attachment 750 is attached, the light emitting element 640 slides diagonally forward to the left on the first plate surface 760a of the metal plate 760 as shown by the arrow FL in FIG. It comes into contact with the protrusion 760 g and is positioned in the mounting area.

Even when the configuration of this modification is adopted, the light emitting element 640 can be supported on the metal plate 760 without using an adhesive. Therefore, the step of applying the adhesive is not required, and the step of curing the adhesive while maintaining the position of the light emitting element 640 is also unnecessary, so that the work process can be simplified. Further, the light emitting element 640 can be easily positioned in the mounting region.

Moreover, in this modification, protrusions for positioning the light emitting element 640 in the front and left directions of the lamp at two locations surrounding the mounting area for mounting the light emitting element 640 on the first plate surface 760a of the metal plate 760. Along with the formation of the portion 760 g, the urging piece 752 g that urges the light emitting element 640 toward the front of the lamp and the urging piece 752h that urges the light emitting element 640 by contact with the light emitting element 640 are attached to the power supply attachment 750. Since it is formed, the light emitting element 640 can be easily positioned in the mounting region by pressing the light emitting element 640 against the metal plate 760 by the power feeding attachment 750.

In this modification, the inclination angles of the inclined surfaces 752g1 and 752h1 formed on the urging pieces 752g and 752h are preferably set to a value of about 15 to 60 °.

In this modification, the inclined surfaces 752g1 and 752h1 are formed so as to extend in a plane shape, but it is also possible that the inclined surfaces 752g1 and 752h1 are formed so as to extend in a convex curved surface shape or a concave curved surface shape.

Next, a sixth modification of the above embodiment will be described.

FIG. 16 is a diagram similar to FIG. 10 showing a main part of the light source unit according to the present modification. However, in FIG. 16, the main part of the light source unit is shown upside down from the state shown in FIG.

As shown in FIG. 16, the basic configuration of this modification is the same as that of the fourth modification, but the support of the power supply attachment 850 to the metal plate 860 engages the power supply attachment 850 with the metal plate 860. It is different from the case of the above-mentioned fourth modification in that it is performed by making it.

That is, in this modification, a pair of left and right engaging pieces 852j are formed on the insulating member 852 of the power feeding attachment 850, and the metal plate 860 is left and right at positions corresponding to the pair of left and right engaging pieces 852j. A pair of engaging holes 860n are formed. Then, each engaging piece 852j is adapted to engage with the metal plate 860 in a state of being inserted into each engaging hole 860n.

Each engaging piece 852j has a shaft portion 852j1 extending in the vertical direction at a plurality of locations (for example, three locations) in the circumferential direction about a through hole 852i formed in the insulating member 852, and a diameter from the tip position of the shaft portion 852j1. It is composed of a folded-back portion 852j2 that is folded back at an acute angle toward the base end portion toward the outer peripheral side in the direction.

When each engaging piece 852j is inserted into each engaging hole 860n from the first plate surface 860a side of the metal plate 860, its folded portion 852j2 comes into contact with the entrance portion of the inner wall surface of each engaging hole 860n. Then, it is elastically deformed from the state shown in FIG. 16A to the inner peripheral side, has a shape as shown in FIG. 16B, passes through each engaging hole 860n, and its folded portion 852j2 is formed in each engaging hole. When it goes out to the opposite side of the 860n, it is locked to the metal plate 860 in a state of spreading toward the outer peripheral side along the second plate surface 860b as shown in FIG. 16C.

When the power supply attachment 850 is supported by the metal plate 860, the left and right pair of engaging pieces 852j are engaged with the left and right pair of engaging holes 860n to be positioned in the vertical direction, and the left and right pair Positioning pins 852c are engaged with a pair of left and right engaging holes 860k to perform horizontal positioning.

Even when the configuration of the present modification is adopted, the same effect as that of the fourth modification can be obtained.

On top of that, as in this modification, the power supply attachment 850 is supported on the metal plate 860 by engaging the power supply attachment 850 with the metal plate 860, so that fixing by screw tightening is not required. Therefore, it is possible to reduce the number of parts and simplify the work process. Further, it is possible to eliminate the possibility that the light emitted from the light emitting element 640 is blocked by the screw head protruding from the power supply attachment 850.

Moreover, in this modification, a pair of left and right engaging pieces 852j are formed on the power supply attachment 850, and a pair of left and right engaging holes 860n are formed on the metal plate 860, and each engaging piece 852j is engaged. Since the tip portion 852j is configured to engage with the metal plate 860 while being inserted into the joint hole 860n, the power supply attachment 850 and the metal plate 860 should be engaged with each other by a simple configuration. Can be done.

Next, a seventh modification of the above embodiment will be described.

FIG. 17 is a diagram similar to FIG. 16 showing a main part of the light source unit according to the present modification.

As shown in FIG. 17, also in this modified example, the power supply attachment 950 is supported on the metal plate 960 by engaging the power supply attachment 950 with the metal plate 960, and the detailed structure thereof is the sixth. It is different from the case of the modified example.

That is, also in this modification, a pair of left and right engaging pieces 952j are formed on the insulating member 952 of the power feeding attachment 950, and a pair of left and right engaging holes 960n are formed on the metal plate 960. Then, each engaging piece 952j is adapted to engage with the metal plate 960 in a state of being inserted into each engaging hole 960n.

In this modification, each engaging piece 952j has a single shaft portion 952j1 extending in the vertical direction and a pair of shaft portions 952j1 that are folded back at an acute angle toward the base end portion side from the tip position to the left and right sides. It is composed of a folded-back portion 952j2.

Further, in this modification, a contact portion 952j3 projecting to the other engaging piece 952j side is formed at the base end portion of the shaft portion 952j1 of one engaging piece 952j out of the pair of left and right engaging pieces 952j. Has been done.

Further, in this modification, the distance between the pair of left and right engaging pieces 952j is set to a value slightly smaller than the distance between the pair of left and right engaging holes 960n.

When each engaging piece 952j is inserted into each engaging hole 960n from the first plate surface 960a side of the metal plate 960, its folded portion 952j2 comes into contact with the entrance portion of the inner wall surface of each engaging hole 960n. , The state shown in FIG. 17 (a) is elastically deformed to the shaft portion 952j1 side to have a shape as shown in FIG. 17 (b), passes through each engagement hole 960n, and the folded portion 952j2 is engaged with each other. When it goes out to the opposite side of the joint hole 960n, it is locked to the metal plate 960 in a state of expanding outward along the second plate surface 960b as shown in FIG. 17 (c).

In this modification, just before the folded-back portion 952j2 of one engaging piece 952j comes out to the opposite side of the engaging hole 960n, the contact portion 952j3 formed at the base end portion of the shaft portion 952j1 is formed in the engaging hole 960n. When the folded portion 952j2 comes out to the opposite side of the engaging hole 960n, the contact portion 952j3 comes into contact with the inner wall surface of the engaging hole 960n. At this time, the shaft portion 952j1 of the other engaging piece 952j also comes into contact with the inner wall surface of the engaging hole 960n.

When the power supply attachment 950 is supported by the metal plate 960, the left and right pair of engaging pieces 952j are engaged with the left and right pair of engaging holes 960n to be positioned in the vertical direction, and the left and right pair The positioning pin 952c of the above is engaged with a pair of left and right engaging holes 960k to perform horizontal positioning. At that time, the left and right pair of engaging pieces 952j abut on the inner wall surface of the left and right pair of engaging holes 960n, so that the positioning accuracy in the left and right direction is improved.

Even when the configuration of the present modification is adopted, the same effect as that of the sixth modification can be obtained.

On top of that, in this modification, the contact portion 952j3 formed at the base end of the shaft portion 952j1 of one of the pair of left and right engaging pieces 952j of the engaging piece 952j has an engaging hole 960n. Since the shaft portion 952j1 of the other engaging piece 952j comes into contact with the inner wall surface of the other engaging hole 960n while contacting the inner wall surface, the power supply attachment 950 and the metal plate 960 are engaged. It is possible to improve the positioning accuracy in the left-right direction in the standing state.

Next, an eighth modification of the above embodiment will be described.

FIG. 18 is a diagram similar to FIG. 16 showing a main part of the light source unit according to the present modification.

As shown in FIG. 18, in this modified example as well, the power supply attachment 1050 is supported on the metal plate 1050 by engaging the power supply attachment 1050 with the metal plate 1060, but the engagement is performed by caulking. It is different from the case of the sixth modification in that it is performed.

That is, in this modification, burring is applied to two places of the metal plate 1060, whereby a pair of left and right cylindrical burring portions 1060p protruding toward the first plate surface 1060a are formed on the metal plate 1060. Has been done.

Further, in this modification, a pair of left and right engaging holes 1052k are formed at positions corresponding to a pair of left and right burring portions 1060p in the insulating member 1052 of the power feeding attachment 1050. Each engaging hole 1052k is formed with an inner diameter slightly larger than the outer diameter of each burring portion 1060p, and a chamfered 1052k1 is provided at an end portion of the metal plate 1060 on the second plate surface 1060b side.

Each burring portion 1060p is formed to be slightly longer than the length of each engaging hole 1052k.

Then, as shown in FIG. 18A, the power supply attachment 1050 is obtained by inserting a pair of left and right burring portions 1060p into a pair of left and right engaging holes 1052k from the side of the first plate surface 1060a of the metal plate 1060. As shown in 18 (b), it is placed on the first plate surface 1060a of the metal plate 1060. At this time, the pair of left and right burring portions 1060p is in a state in which the tip portion 1060p1 protrudes from the pair of left and right engaging holes 1052k. After that, as shown in FIG. 18C, the tip portions of the pair of left and right caulking jigs 1000 formed in a truncated cone shape are brought into contact with the tip portions 1060p1 of the pair of left and right burring portions 1060p. The tip portion 1060p1 of each burring portion 1060p is locked to the insulating member 1052 in a state of being plastically deformed so as to spread toward the outer peripheral side along the surface of the insulating member 1052.

Even when the configuration of the present modification is adopted, the same effect as that of the sixth modification can be obtained.

Moreover, in this modification, the power supply attachment 1050 and the metal plate 1060 are engaged with each other by caulking the metal plate 1060 to the power supply attachment 1050, whereby the power supply attachment 1050 is fixed to the metal plate 1060. It is possible to easily position the metal in the direction perpendicular to the plane and the direction along the plane.

Therefore, in this modification, the pair of left and right engaging holes 760k formed in the power supply attachment 750 of the fifth modification and the pair of left and right positioning pins 752c formed in the metal plate 760 are not required.

Next, a ninth modification of the above embodiment will be described.

FIG. 19A is a diagram similar to FIG. 10 showing a main part of the light source unit according to this modification.

As shown in FIG. 19A, the basic configuration of this modification is the same as that of the fourth modification, but the configuration of the metal plate 1160 is partially different from that of the fourth modification. There is.

That is, also in this modification, the light emitting element 640 and the power feeding attachment 650 are supported by the metal plate 1160, but the pedestal portion 1160q is formed on the first plate surface 1160a of the metal plate 1160. The mounting area for mounting the light emitting element 40 on the first plate surface 1160a of the metal plate 1160 is located on the pedestal portion 1160q.

The pedestal portion 1160q is formed to have substantially the same wall thickness as the peripheral region thereof by plastically deforming the metal plate 1160, and a recess 1160r is formed on the back surface side (that is, the second plate surface 1160b side) thereof. ..

The light emitting element 640 is supported on the metal plate 1160 by, for example, fixing the main body support portion 640B of the light emitting element 640 to the pedestal portion 1160q using an adhesive or the like.

By adopting the configuration of this modification, it is possible to prevent the light emitted from the light emitting element 640 from being blocked by the power supply attachment 650. Therefore, it is possible to allow a margin in the wall thickness of the insulating member 652 of the power feeding attachment 650 by the height of the pedestal portion 1160q, whereby the power feeding attachment 650 can be easily manufactured.

Further, as in this modification, although the power supply attachment 650 is supported on the metal plate 1160 by screw tightening, the light emitted from the light emitting element 640 protrudes from the power supply attachment 650. It is possible to make it difficult to block light.

Next, a tenth modification of the above embodiment will be described.

FIG. 19B is a diagram similar to FIG. 19A showing a main part of the light source unit according to the present modification.

As shown in FIG. 19B, the basic configuration of this modification is the same as that of the ninth modification, but a plurality of heat radiation fins 1262 are additionally arranged on the second plate surface 1260b of the metal plate 1260. This is different from the case of the ninth modification.

The plurality of heat radiation fins 1262 are fixed to the recess 1260r on the back surface side of the pedestal portion 1260q and a plurality of locations in the peripheral region thereof by adhesion or welding.

By adopting the configuration of this modification, the heat generated by the light emitting element 640 can be efficiently dissipated by the plurality of heat radiation fins 1262. As a result, the metal plate 1260 has a structure in which the pedestal portion 1260q is formed on the first plate surface 1260a of the metal plate 1260 and the recess 1260r is formed on the back surface side thereof. A sufficient heat dissipation function can be secured.

In this modification, it has been described that the plurality of heat radiation fins 1262 are composed of members separate from the metal plate 1260, but it is also possible to adopt a configuration in which these are integrally formed with the metal plate 1260. Is.

Next, an eleventh modification of the above embodiment will be described.

FIG. 19 (c) is a diagram similar to FIG. 19 (a) showing a main part of the light source unit according to this modification.

As shown in FIG. 19C, the basic configuration of this modification is the same as that of the ninth modification, but the configuration of the metal plate 1360 is partially different from that of the ninth modification. There is.

That is, in this modification, the pedestal portion 1360q similar to that in the case of the ninth modification is formed on the first plate surface 1360a of the metal plate 1360, but on the back surface side (that is, the second plate surface 1360b side). The recess 1160r as in the ninth modification is not formed, but is formed as a flat surface portion 1360s flush with the peripheral region thereof.

The flat surface portion 1360s is formed by forming the pedestal portion 1360q by press molding and then further plastically deforming a part of the metal plate 1360.

By adopting the configuration of this modification, it is possible to increase the wall thickness of the portion of the metal plate 1360 where the pedestal portion 1360q is located, thereby enhancing the heat dissipation function of the metal plate 1360.

It should be noted that the numerical values shown as specifications in the above-described embodiment and its modified examples are only examples, and it goes without saying that these may be set to different values as appropriate.

Further, the present invention is not limited to the configurations described in the above-described embodiment and its modifications, and configurations to which various other modifications are added can be adopted.

10 Vehicle lighting equipment 12 Lamp body 14 Translucent cover 20A, 20B, 20C Lighting equipment unit 30, 130, 230, 330 Light source unit 40 Light emitting element 40A Element body 40B Main body support 40a Light emitting surface 40b Terminal part 50, 250, 350 Power supply attachment 50A, 250A, 350A Power supply part 50B, 250B, 350B Connector part 50C, 250C, 350C Intermediate part 52 Insulation member 52A Power supply part constituent area 52B Connector part constituent area 52C Intermediate part constituent area 52a Opening 52b Flange part 52c Positioning pin 52d Rectangular Hole 52e Recess 52f Screw insertion hole 54 Bus bar electrode 54a Terminal piece 54b Presser piece 54c Terminal pin 56 Screw 60, 160, 360 Metal plate 60a, 160a, 360a First plate surface 60b, 160b, 360b Second plate surface 60c, 360c opening Part 60d Insertion hole 60e Engagement hole 60f Screw hole 70 Reflector 70a Reflection surface 70s Reflector element 72 Light source support part 72a Caulking pin 80 External power supply side connector 160d Rear end 160e Lower extension part S1 First plate surface side space S2 Second Space on the plate surface side 620A Light source unit 630 Light source unit 640 Light emitting element 640A Element body 640B Main body support part 640a Light emitting surface 640b Terminal part 642 Heat transfer grease 650, 750, 850, 950, 550 Power supply attachment 650A Power supply part 650B Part 652, 752, 852, 952, 1052 Insulation member 652A, 752A Power supply part constituent area 652B Connector part constituent area 652C Intermediate part constituent area 652a, 752a Opening 652b Flange part 652c, 852c, 952c Positioning pin 652d Rectangular hole 652f Screw insertion hole 654 Bus bar electrode 654a Terminal piece 654c Terminal pin 656 Screw 660, 760, 860, 960, 1060, 1160, 1260, 1360 Metal plate 660a, 760a, 860a, 960a, 1060a, 1160a, 1260a, 1360a First plate surface 660b, 860b, 960b, 1060b, 1160b, 1260b, 1360b Second plate surface 660c Opening 660d Rear end 6 60e Lower extension part 660f Screw hole 660g, 760g Protrusion part 660g 1 Chamfering 660h Recessed part 660i, 760i Recessing part 660j Insertion hole 660k, 860k, 960k, 1052k Engagement hole 660m Recessed part 670 Biasing piece 752g1, 752h1 Inclined surface 754 Bus bar electrode 852i Through hole 852j, 952j Engagement piece 852j1, 952j1 Shaft part 852j2, 952j2 Folded part 860n, 960n Engagement hole 952j3 Abutment part 1000 caulking jig 10 1060p1 Tip 1160q, 1360q Pedestal 1160r Recess 1262 Heat dissipation fin 1360s Flat surface A Mounting area

Claims (14)

In a light source unit including a light emitting element, a power supply attachment for supplying electric power to the light emitting element, and a metal plate supporting the light emitting element and the power feeding attachment.
The light emitting element is supported on the first plate surface of the metal plate.
The power supply attachment includes a power supply unit that abuts on the light emitting element to supply power, a connector portion that is electrically connected to an external power source, and an intermediate portion located between the power supply unit and the connector portion. I have
The power feeding unit is supported on the first plate surface of the metal plate.
A light source unit characterized in that the connector portion is formed so as to open in a space on the second plate surface side of the metal plate. An opening is formed in the metal plate,
The light source unit according to claim 1, wherein the power supply attachment is formed so that the intermediate portion extends through the opening. The light emitting element is placed on the first plate surface of the metal plate via heat transfer grease.
On the first plate surface of the metal plate, protrusions for positioning the light emitting element are formed at a plurality of locations surrounding the mounting area for mounting the light emitting element.
The light source unit according to claim 1 or 2, wherein the light emitting element is pressed against the metal plate by the power feeding attachment in a state of being positioned in the above-described mounting region by the plurality of protrusions. .. The light source unit according to claim 3, wherein a portion of the tip of each of the protrusions on the side of the above-mentioned placement region is chamfered. The light source unit according to claim 3 or 4, wherein a recess is formed in a portion adjacent to each of the protrusions in the above-mentioned placement region. The light emitting element is placed on the first plate surface of the metal plate via heat transfer grease.
On the first plate surface of the metal plate, protrusions for positioning the light emitting element in a required direction are formed at two locations surrounding the mounting area for mounting the light emitting element.
The light emitting element is pressed against the metal plate by the power supply attachment.
The light source unit according to claim 1 or 2, wherein an urging piece for urging the light emitting element in the required direction is formed on the power feeding attachment by abutting with the light emitting element. The light source unit according to any one of claims 1 to 6, wherein the power supply attachment is supported on the metal plate by engaging the power supply attachment with the metal plate. A plurality of engaging pieces are formed on the power supply attachment,
A plurality of engaging holes are formed in the metal plate,
The light source unit according to claim 7, wherein each of the engaging pieces is configured such that a tip end portion engages with the metal plate in a state of being inserted into each of the engaging holes. At least a part of the plurality of engaging pieces is formed with a contact portion that comes into contact with the inner wall surface of the engaging hole while being inserted into the engaging hole. 8. The light source unit according to claim 8. The light source unit according to claim 7, wherein the engagement between the power supply attachment and the metal plate is performed by caulking and fixing the metal plate to the power supply attachment. A pedestal portion is formed on the first plate surface of the metal plate.
The light source unit according to any one of claims 1 to 10, wherein a mounting area for mounting the light emitting element is located on the pedestal portion on the first plate surface of the metal plate. A vehicle lamp provided with the light source unit according to any one of claims 1 to 11.
It is equipped with a reflector that reflects the light emitted from the light emitting element of the light source unit toward the front of the lamp.
The reflector is arranged below the light source unit.
The light source unit is a vehicle lamp that is supported by the reflector on the metal plate with the first plate surface of the metal plate facing downward. The vehicle lighting device according to claim 12, wherein a plurality of sets of the light source unit and the reflector are arranged side by side in the vehicle width direction. The opening is located on the rear side of the lamp of the light emitting element.
The vehicle lamp according to claim 12 or 13, wherein the connector portion opens toward the rear of the lamp.

Images