JP2013089580A - Light source unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source unit capable of accurately carrying out positioning between a focal point of a reflector and a light source at assembling, and preventing displacement between the focal point of the reflector and the light source.SOLUTION: The light source unit is provided with a light source module with a light emitting element and a mounting substrate with the light emitting element mounted, an attachment pedestal with the light source module loaded on an upper surface and an attachment part attached to a setting surface or/and an attachment fixture provided on a bottom-surface side, and a reflector fixed to an upper surface of the attachment pedestal and controlling light distribution of the light source module. A connector electrically connected with the light emitting element with a lead wire connected to it is set in protrusion on a backside of the mounting substrate. A through-hole penetrating through a bottom surface side for inserting the connector at loading of the mounting substrate is provided on the upper surface of the attachment pedestal.

Description

  The present invention relates to a light source unit including a light source and a reflecting mirror.

  Conventionally, a light emitting element such as an LED is used as a light source, the light source is mounted on a substrate, and a lens body including a lens disposed in front of the light source is provided, and the light distribution characteristics of the light source are controlled by the lens body. A known light source unit is known (see, for example, Patent Document 1).

JP 2002-304904 A

However, since the mounting electronic component including the light source and the mounting substrate is always covered with the lens body, there is a problem that heat generated from the mounting electronic component including the light source is likely to get into the unit by the lens body. In order to prevent heat from being generated inside the unit by the lens body, a configuration in which the light distribution characteristic of the light source is controlled using a reflecting mirror instead of the lens body is conceivable. Since the light source is exposed by using the reflector, it is possible to prevent heat generation from the light source from entering the inside of the unit, but it is necessary to align the focal point of the reflector and the light source with high precision. It could not be done easily.
The present invention eliminates the above-described problems of the prior art, can accurately align the focal point of the reflecting mirror and the light source during assembly, and prevents the positional deviation between the focal point of the reflecting mirror and the light source. An object of the present invention is to provide a light source unit that can be used.

  In order to achieve the above object, the present invention provides a light source module including a light emitting element and a mounting substrate on which the light emitting element is mounted, and an attachment in which the light source module is mounted on an upper surface and attached to an installation surface or / and a fixture. A mounting part provided on the bottom surface side, and a reflecting mirror fixed to the top surface of the mounting base and controlling the light distribution of the light source module, and electrically connected to the light emitting element, A connector to be connected protrudes from the back surface of the mounting board, and a through hole is provided on the top surface of the mounting base so as to penetrate the bottom surface and enter the connector when the mounting board is placed. And

  Further, the present invention provides the light source unit, wherein a lower end portion of the reflecting mirror is inserted and fixed to the mounting base, and a lower end of the inserted reflecting mirror is interposed between the lower end of the reflecting mirror and the mounting base. An elastic member to be pressed is provided.

  Further, the present invention provides the light source unit, wherein the reflecting mirror and the mounting base are formed of a high thermal conductivity material, and are inserted into the mounting base at a lower end portion of the reflecting mirror so as to meet the mounting base and the surface. It is characterized by having a flange portion that comes into contact.

  Moreover, the present invention is characterized in that, in the light source unit, the lower end portion of the reflecting mirror is screwed and fixed to the mounting base.

  In the light source unit, the mounting portion of the mounting base may include an engaging portion that is held by being engaged with a holding adapter provided on the installation surface and / or the mounting fixture. It is characterized by.

  According to the present invention, a light source module including a light emitting element and a mounting substrate on which the light emitting element is mounted, and a mounting portion on which the light source module is mounted on the top surface and attached to the installation surface or / and the mounting tool are provided on the bottom surface side. And a reflector that is fixed to the upper surface of the mounting base and controls the light distribution of the light source module, the connector that is electrically connected to the light emitting element and to which a lead wire is connected. A lead mirror is provided on the upper surface of the mounting board, and a through-hole is provided on the upper surface of the mounting base so as to penetrate the bottom surface and enter the connector when the mounting board is placed. The light source module can be connected to the connector on the back of the mounting board through the through hole of the mounting base instead of the front surface of the mounting light source module. The light source module can be positioned with respect to the mounting base by placing the connector in the through-hole and aligning the focal point of the reflector and the light source with high accuracy during assembly. Therefore, it is possible to prevent the positional deviation between the focal point of the reflecting mirror and the light source.

It is a perspective view which shows the light source unit which concerns on embodiment of this invention. It is a disassembled perspective view of a light source unit. The elements on larger scale which show the fixation structure to the mount of a reflective mirror. It is a partial expanded sectional view which shows the insertion state to the mount of a reflective mirror, FIG. 4 (A) shows the middle of insertion and (B) shows the time of completion of insertion. It is a top view of the mounting base which mounted the light source module on the upper surface. It is sectional drawing of a light source unit. It is a perspective view of a light source unit and a holding adapter. It is a disassembled perspective view of a holding | maintenance adapter. It is a top view which shows the engagement structure of a holding | maintenance adapter and a light source unit. It is a perspective view which shows the state which attached the light source unit to the holding | maintenance adapter. It is a perspective view of the holding | maintenance adapter and light source unit of another embodiment. It is sectional drawing of the illuminating device which incorporated the light source module.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the light source unit 1 according to this configuration includes a light source module (light source) 10, a reflecting mirror 20, and a mounting base 30. The light source unit 1 is used by fixing the light source module 10 and the reflecting mirror 20 to an attachment base 30 and attaching the attachment base 30 to an installation surface or / and an attachment tool. The light distribution of the light source module 10 is controlled by the reflecting mirror 20, and a desired light distribution can be formed in the shape of the reflecting mirror 20. In the following description, directions such as up and down are directions corresponding to the case where the irradiation direction of the light source unit 1 is set to the top.

  The light source module 10 includes a light emitting element (light source) 11, a mounting substrate 12 on which the light emitting element 11 is mounted, and an insulating plate 13 that holds insulation between the light emitting element 11 and the mounting base 30. For the light emitting element 11, a light emitting diode that emits light, such as an LED, can be suitably used. The light emitting element 11 is arranged with the light emitting surface 11A facing upward, and is mounted on the back surface 12A of the mounting substrate 12. That is, the back surface 12A is configured as a mounting surface, and the mounting substrate 12 is disposed with the mounting surface 12A facing down. In the approximate center of the mounting substrate 12, an opening 12 </ b> B facing the light emitting surface 11 </ b> A of the light emitting element 11 is formed. On the mounting surface 12 </ b> A of the mounting substrate 12, a connector 14 that is electrically connected to the light emitting element 11 and to which a lead wire is connected is provided to protrude substantially vertically. The light emitting element 11 is placed on the upper surface 31 of the mounting base 30 with the insulating plate 13 interposed therebetween. The insulating plate 13 is formed using a material having excellent insulating properties and thermal conductivity such as ceramic.

  The reflecting mirror 20 is fixed to the upper surface 31 of the mounting base 30. The reflecting mirror 20 is configured so that the focal point is aligned with the position of the light emitting element 11, and controls the light distribution of the light emitting element 11, for example, the angle at which the light spreads. As will be described later in detail, the light source unit 1 is configured such that when the light source module 10 and the reflecting mirror 20 are fixed to the mounting base 30, the reflecting mirror 20 is focused on the position of the light emitting element 11. The reflecting mirror 20 is formed by using, for example, aluminum die-casting or the like using a high thermal conductivity material having excellent thermal conductivity, and the inner peripheral surface is provided on the reflecting surface 21 having a mirror surface and the lower end of the reflecting portion 21. And a flange portion 24. A radiation opening 22 is provided at the upper end of the reflecting portion 21, and a cover 40 is attached to the radiation opening 22. The radial opening 22 is provided with a plurality of locking holes 23 arranged in the circumferential direction in which the cover 40 is locked at the periphery. The flange portion 24 provided on the lower end side of the reflecting mirror 20 is inserted and fixed to the mounting base 30.

The mounting base 30 is formed by using, for example, aluminum die-casting or the like using a high thermal conductivity material having excellent thermal conductivity, and a fixing portion 33 for fixing the reflecting mirror 20 to the peripheral wall 32 is provided on the upper surface 31 side. It is done. The fixing portions 33 are provided at two locations at intervals of 180 degrees in the circumferential direction of the peripheral wall 32. In addition to being fixed at two locations on the peripheral wall 32, the fixing portion 33 may be configured to be provided at intervals of 120 degrees or at intervals of 90 degrees, for example.
3 is an enlarged view of the fixing portion 33. The fixing portion 33 extends laterally from a vertical groove 33A in which the peripheral wall 32 of the mounting base 30 is cut out in the vertical direction from the upper edge, and from the lower end portion of the vertical groove 33A. A horizontal groove 33B and a lock groove 33C having an end portion of the horizontal groove 33B that is slightly enlarged upward are provided. The flange portion 24 of the reflecting mirror 20 is provided with a convex portion 26 at the lower end portion 25. As shown by a broken line arrow X in FIG. 3, the reflecting mirror 20 is aligned with the fixing base 33 by aligning the positions of the vertical groove 33 </ b> A of the fixing portion 33 and the convex portion 26 of the flange portion 24 with the mounting base 30. Inserted. Next, the reflecting mirror 20 is rotated and fixed to the mounting base 30 by rotating the convex portion 26 along the lateral groove 33B with respect to the fixing portion 33 until the convex portion 26 is caught by the lock groove 33C.

  FIG. 4 is a partially enlarged cross-sectional view showing a state in which the reflecting mirror 20 is inserted into the mounting base 30, and the reflecting mirror 20 has a flange portion 24 as shown in FIGS. 4 (A) and 4 (B). The outer peripheral diameter R1 is slightly larger than the inner peripheral diameter R2 of the peripheral wall 32 of the mounting base 30, and the lower end 25 has an inclination (taper) α of about 2 ° that decreases toward the bottom. Is formed. Corresponding to the shape of the flange portion 24, the peripheral wall 32 of the mounting base 30 is similarly formed with an inclination (taper) β of about 2 ° that increases in diameter upward. Therefore, when the flange portion 24 of the reflecting mirror 20 is inserted into the mounting base 30, it is easy to insert, and the peripheral edge 25 </ b> A of the lower end 25 can come into contact with the peripheral wall 32 of the mounting base 30. Thereby, the heat of the light source module 10 can be transferred to the mounting base 30 and the reflecting mirror 20 and efficiently radiated from the surfaces of the mounting base 30 and the reflecting mirror 20.

  According to this configuration, since the reflecting mirror 20 can be easily screwed and fixed to the mounting base 30 without using a fixture such as a screw or a fixing jig, the workability when assembling the light source unit 1 is improved. Can be improved. In addition, when the reflecting mirror 20 is fixed to the mounting base 30 with a fixing tool such as a screw, the external dimensions of the mounting base 30 may be increased in order to form a screw hole or the like. For example, since it is not necessary to fix the reflecting mirror 20 to the mounting base 30 with a fixing tool such as a screw, the mounting base 30 can be reduced in size, and the outer diameter of the light emitting portion of the light emitting element 11 and the mounting base 30 can be reduced. The ratio to the outer diameter can be formed to be, for example, 1 to 5 or less. Further, it is not necessary to use a fixing tool such as a screw, and the cost can be reduced.

  The mounting base 30 includes a mounting portion (lower end portion) 34 on the bottom surface 37 side. Although the details will be described later, the mounting portion 34 includes an engaging portion 35 that is held by being engaged with a holding adapter 50 that is provided in advance on an unillustrated installation surface or mounting fixture on which the light source unit 1 is installed. .

As shown in FIG. 5, the light source module 10 is configured such that each mounting vertex 12 formed in a substantially rectangular shape is shifted from each other by 45 degrees with respect to the insulating plate 13 formed in a substantially rectangular shape. At one of the apexes of the mounting substrate 12, a connector 14 projects from the back surface 12A. Since the mounting substrate 12 is provided on the insulating plate 13 with a phase shifted by 45 degrees, even if the connector 14 protrudes from the back surface 12A of the mounting substrate 12, the connector 14 is not blocked by the insulating plate 13 and Can be extended.
The mounting base 30 includes grooves 31 </ b> A and 31 </ b> B that are formed on the upper surface 31 according to the outer shape of the light source module 10 and that position the light source module 10. The groove 31A is formed according to the outer diameter shape of the insulating plate 13, and is formed deeper than the groove 31B. The insulating plate 13 is placed on the upper surface of the groove 31A. The groove 31 </ b> B is formed according to the outer shape of the mounting substrate 12. The groove 31A and the groove 31B are configured so that the mounting substrate 12 is placed on the upper surface of the groove 31B when the insulating plate 13 is placed on the upper surface of the groove 31A.

  As shown in FIG. 6, the mounting base 30 includes a through hole 36 that penetrates the top surface 31 toward the bottom surface 37. When the light source module 10 is placed on the upper surface 31 of the mounting base 30, the connector 14 protruding from the rear surface 12 </ b> A of the mounting substrate 12 enters the through hole 36. According to this configuration, the connector 14 that is electrically connected to the light emitting element 11 and to which the lead wire is connected protrudes from the rear surface 12A of the mounting substrate 12, and the connector 14 extends from the upper surface 31 to the bottom surface 37 of the mounting base 30. The light source module 10 can be attached to the mount 30 by entering the through hole 36 penetrating to the side. As a result, the lead wire can be wired through the through hole 36, and it is not necessary to route the light source unit 1 to the upper side or the lateral side of the light source unit 1. It can be carried out. Further, the light source module 10 and the reflecting mirror 20 can be fixed without worrying about the wiring of the light source module 10. Thereby, the focus of the reflective mirror 20 and the position alignment of the light source module 10 can be performed with high precision at the time of assembly, and the position shift of the focus of the reflective mirror and the light source can be prevented.

  In addition, according to this configuration, the focus of the reflecting mirror 20 and the light emitting element 11 can be easily aligned at the time of assembly without worrying that the focal position of the reflecting mirror 20 is shifted from the position of the light emitting element 11 due to the wiring. It can be performed with high accuracy. Further, since the light source module 10 can be wired through the through hole 36, the electric wire is wired from the bottom surface 37 side of the mounting base 30 having the mounting portion 34 for mounting the light source unit 1 to the installation surface or / and the mounting fixture. It is possible to prevent the electric wire from being affected by scratches or the like due to contact with the components during wiring, and the quality can be stabilized. Further, since the lead wire can be drawn from the bottom surface side of the light source unit 1 and wired within the outer diameter, the light source unit 1 configured integrally with the light source module 10, the reflecting mirror 20, and the mounting base 30. After the light source unit 1 is assembled, the wiring can be electrically connected to a power source. Therefore, the light source unit 1 can be used in various applications, for example, as an alternative to a light source of an existing lighting device.

  In the reflecting mirror 20, the lower end portion 25 of the flange portion 24 is inserted and fixed to the mounting base 30, and the peripheral edge 25 </ b> A of the lower end portion 25 contacts the peripheral wall 32 of the mounting base 30 on the surface. Further, the lower end 25 </ b> B of the flange portion 24 is in surface contact with the upper surface 31 of the mounting base 30. According to these configurations, the reflecting mirror 20 and the mounting base 30 are formed of a high thermal conductivity material, the light source module 10 is placed on the upper surface 31 of the mounting base 30, and the lower end 25 of the reflecting mirror 20, The mounting base 30 was brought into contact with the surface. Thereby, the heat of the light source module 10 can be transferred to the mounting base 30 and the reflecting mirror 20 and efficiently radiated from the surfaces of the mounting base 30 and the reflecting mirror 20.

  An annular groove 36 </ b> B that is an annular groove is formed around the optical axis of the reflecting mirror 20 on the upper surface 31 of the mounting base 30. In the annular groove 36B, elastic members 41 such as packing and O-rings are evenly provided around the optical axis of the reflecting mirror 20. The elastic member 41 is made of silicon rubber having high thermal conductivity. When the reflecting mirror 20 is attached to the mounting base 30, a high thermal conductive adhesive (silicone) having excellent thermal conductivity is applied to the upper surface 31 of the mounting base 30 and / or the lower end 25 of the flange portion 24 of the reflecting mirror 20. Sealing material) is applied. Next, the reflecting mirror 20 inserts the lower end portion 25 of the flange portion 24 into the mounting base 30 with the position of the convex portion 26 aligned with the vertical groove 33 </ b> A of the fixing portion 33. Subsequently, the reflecting mirror 20 is rotated along the fixing portion 33 until the convex portion 26 engages with the lock groove 33 </ b> C, and the reflecting mirror 20 is screwed and fixed to the mounting base 30. At this time, the elastic member 41 is elastically deformed and presses the reflecting mirror 20 upward. When the convex portion 26 reaches the position of the lock groove 33C of the fixed portion 33, the reflecting mirror 20 is pushed up by the repulsive elastic action of the elastic member 41 and is locked to the lock groove 33C.

  According to this configuration, since the convex portion 26 of the reflecting mirror 20 is locked in the lock groove 33C by the elastic member 41, the high thermal conductive adhesive that bonds and fixes the reflecting mirror 20 to the mounting base 30 is cured. Since the reflecting mirror 20 can be prevented from rotating with respect to the mounting base 30, the assembly work can be made more efficient. Moreover, since the lower end 25B of the reflecting mirror 20 can be pressed by the elastic member 41 and held until the adhesive is cured, the reflecting mirror 20 can be fixed at a desired position. Thereby, the focus of the reflecting mirror 20 and the light source module 10 can be aligned with high accuracy at the time of assembly, and the misalignment between the focus of the reflecting mirror 20 and the light source module 10 can be prevented.

  The light source unit 1 has a hole 43 above the light emitting element 11 between the light source module 10 and the flange portion 24 so as not to block light emission of the light emitting element 11, and is a packing (elasticity) formed of an elastic material. Member) 42. The packing 42 is formed from a silicon material or the like having high insulation and thermal conductivity. The packing 42 is disposed between the upper surface of the light source module 10 and the lower surface of the reflecting mirror 20 when the light source unit 1 is assembled, and presses the light source module 10 against the upper surface 31 of the mounting base 30 and reflects it. The mirror 20 is pressed by a repulsive elastic action.

  According to this configuration, since the light source module 10 and the reflecting mirror 20 are pressed by the packing 42 and fixed at a desired position, the focus of the reflecting mirror 20 and the alignment of the light source module 10 are highly accurately aligned during assembly. And the positional deviation between the focal point of the reflecting mirror 20 and the light source module 10 can be prevented. Further, according to this configuration, the light source module 10 can be fixed by being pressed against the upper surface 31 of the mounting base 30 by the reflecting mirror 20 with the packing 42 interposed therebetween, thereby improving workability during assembly. it can.

  Next, the mounting structure of the light source unit 1 on the installation surface and / or the mounting tool will be described. As shown in FIG. 7, the mounting base 30 includes a mounting portion 34 on the bottom surface 37 side. The attachment portion 34 is formed to attach the light source unit 1 to an installation surface (not shown) or / and an attachment device, and is inserted and fixed to a holding adapter 50 provided on the installation surface of the light source unit 1 and / or the attachment device. The holding adapter 50 includes an annular portion 54 into which the attachment portion 34 is inserted on the upper surface 50A side. On the bottom surface side of the holding adapter 50, there is provided a base portion 59 having a depth that allows the holding adapter 50 to be fixed to the installation surface and / or the mounting tool with a screw or the like fitted from the bottom surface side of the holding adapter 50.

  The annular portion 54 is provided with a guide groove 51 that guides the guide convex portion 38 provided in the attachment portion 34 when the attachment portion 34 is inserted and fixed to the annular portion 54. As shown in FIG. 8, an arcuate spring 55 made of an elastic steel material is inserted inside the annular portion 54. The spring 55 is formed by bending one rod-shaped elastic steel material into an arbitrary shape. As shown in FIG. 9, the spring 55 includes an insertion portion 56 that is inserted into the slit 52 of the annular portion 54 when the spring 55 is attached to the annular portion 54. The spring 55 includes a plurality of insertion portions 56 that protrude outward in the circumferential direction, and includes protrusions 57 that are bent so as to protrude inward in the circumferential direction between the insertion portions 56.

  The attachment portion 34 includes an engagement portion 35 that engages with a spring 55 inserted into the holding adapter 50. The engaging portion 35 is hooked by elastically deforming the spring 55 when the guide convex portion 38 of the mounting portion 34 is inserted and screwed along the guide groove 51 of the holding adapter 50. FIG. 9A shows the configuration of the spring 55 and the engaging portion 35 when the attachment portion 34 is inserted into the holding adapter 50, and FIG. 9B shows the attachment portion 34 in the holding adapter 50. FIG. 9C is a diagram showing a state in which the spring 55 is deformed by being screwed to the engaging portion 35, and FIG. 9C shows that the spring 55 is elastically deformed and the engaging portion 35 is locked to the spring 55. FIG.

  As shown in FIG. 10, when the mounting portion 34 is screwed into the annular portion 54 so as to reach the innermost portion of the guide groove 51 along the guide groove 51, the engaging portion 35 is The position is set so as to be locked to the spring 55. According to this configuration, the light source unit 1 uses the elastic deformation of the spring 55 by inserting and screwing the guide convex portion 38 provided in the attachment portion 34 along the guide groove 51 of the holding adapter 50. The light source unit 1 can be easily attached / removed to / from the installation surface or / and the attachment tool without using a screw or the like.

  The holding adapter 50 includes a hole 58 in the base portion 59 that passes through the front and back surfaces and allows the lead wire to pass therethrough. According to this configuration, the lead wire extending to the light source unit 1 can be wired through the hole 58 of the holding adapter 50, and the lead wire can be wired within the outer diameter of the light source unit 1 and the holding adapter 50. . In addition, the holding adapter 50 may be configured to include a fixing hole 53 in the base portion 59 that can fix a support member such as an arm extending from the installation surface or / and the fixture to the holding adapter 50 with a screw or the like. . The light source unit 1 can be used as an illumination device such as a spotlight by directly fixing the holding adapter 50 to an installation surface such as a wall surface.

  The holding adapter 50 can be formed in an arbitrary shape based on the use application of the light source unit 1 and the shape of the installation surface or / and the attachment device to which the light source unit 1 is attached. For example, as shown in FIG. 11, a holding adapter 60 including a base portion 59 that fixes the annular portion 54 to the installation surface of the light source unit 1 and / or the attachment device may be used as the annular portion 54. A plurality of screw holes 61 for fixing the holding adapter 60 to the installation surface of the light source unit 1 and / or the fixture with screws (not shown) are provided in the base portion 59 at intervals in the circumferential direction. In the holding adapter 60, a spring 55 is inserted inside the annular portion 54 in the same manner as the holding adapter 60 described above. According to this configuration, the light source unit 1 can be screwed and fixed to the holding adapter 60 by simply fixing the holding adapter 60 in advance to the installation surface or / and the fixture. Or / and attachment / exchange to a fixture can be easily performed.

Further, as shown in FIG. 12, the light source unit 1 can be used as a light source of the lighting device 70 by being inserted into a lamp body 72 of the lighting device 70 including a power supply board 71 therein. The illuminating device 70 can be used as a spotlight, for example, by pointing the lamp body 72 to an arbitrary installation surface 74 with an arm 73. In the lighting device 70, the ends of the lamp body 72 are closed by a front cover 75 and a lid 76, respectively. In this configuration, the lighting device 70 may include the above-described holding adapters 50 and 60 inside the lamp main body 72, and the light source unit 1 may be configured to be screwed and fixed to the holding adapters 50 and 60.
Although illustration is omitted, when the light source unit 1 and the mounting board 12 are built in the lamp body 72 of the lighting device 70, between the front cover 75 and the reflecting mirror 20, and between the power supply board 71 and the lid. The structure is supported by using an elastic member (packing) formed of a silicon material having high insulation and thermal conductivity between the body 76 and preventing the intrusion of rainwater or the like into the lamp body 72. Can also be used outdoors.

  As described above, according to the embodiment to which the present invention is applied, the light source module 10 including the light emitting element 11 and the mounting substrate 12 on which the light emitting element 11 is mounted, and the light source module 10 are placed on the upper surface 31, Or the attachment part 34 attached to a fixture is provided with the attachment base 30 provided in the bottom face 37 side, and the reflecting mirror 20 which is fixed to the upper surface 31 of the attachment base 30, and controls the light distribution of the light source module 10. The connector 14 that is electrically connected to the light emitting element 11 and connected to the lead wire protrudes from the back surface 12A of the mounting substrate 12, and the mounting substrate 12 is mounted on the upper surface 31 of the mounting base 30 so as to penetrate to the bottom surface 37 side. A through hole 36 into which the connector 14 enters when placed is provided.

  According to this configuration, the lead wire connected to the light source module 10 is not the upper side of the light emitting part of the light emitting element 11 provided with the reflecting mirror 20, that is, from the surface of the light source module 10, but the through hole of the mounting base 30. It is possible to connect to the connector 14 on the back surface 12 </ b> A of the mounting substrate 12 through 36. Thereby, the light source module 10 can be received by the upper surface 31 of the mounting base 30, and the light source module 10 can be provided without shifting from the focal position of the reflecting mirror 20. Further, by fixing the reflecting mirror 20 to the upper surface 31 of the mounting base 30, the focal position of the reflecting mirror 20 can be easily adjusted to the light source module 10. Furthermore, the light source module 10 can be positioned with respect to the mounting base 30 by allowing the connector 14 to enter the through hole 36. With these configurations, when the light source unit 1 is assembled, the focal point of the reflecting mirror 20 and the light source module 10 can be aligned with high accuracy, and the positional deviation between the focal point of the reflecting mirror 20 and the light source module 10 can be prevented. .

  According to the embodiment to which the present invention is applied, the lower end 25 of the reflecting mirror 20 is inserted and fixed to the mounting base 30, and the inserted reflecting mirror is inserted between the lower end 25 B of the reflecting mirror 20 and the mounting base 30. The elastic member 41 which presses the lower end 25B of 20 was provided. As a result, the elastic member 41 absorbs rattling due to manufacturing errors between the lower end 25B of the reflecting mirror 20 and the upper surface 31 of the mounting base 30, so that the focal point of the reflecting mirror 20 matches the light source module 10. Since the reflecting mirror 20 can be attached, the focus of the reflecting mirror 20 and the position of the light source module 10 can be accurately aligned when the light source unit 1 is assembled. Deviation can be prevented.

  In addition, according to the embodiment to which the present invention is applied, the reflecting mirror 20 and the mounting base 30 are formed of a highly heat conductive material, and the lower end 25 of the reflecting mirror 20 is inserted into the mounting base 30 to be attached to the mounting base 30. Since the flange portion 24 that comes into contact with the surface is provided, the heat generation of the light source module 10 is conducted to the mounting base 30 via the upper surface 31 on which the light source module 10 is placed, and the flange portion 24 that comes into contact with the mounting base 30 on the surface. And is conducted to the reflecting mirror 20 via. Thereby, the heat of the light source module 10 can be efficiently radiated to the outside of the light source unit 1 from the surface of the mounting base 30 and the reflecting mirror 20, and the heat of the light source module 10 spreads inside the light source unit 1. Can be prevented.

  Further, according to the embodiment to which the present invention is applied, since the lower end portion 34 of the reflecting mirror 20 is screwed and fixed to the mounting base 30, it is not necessary to fix the reflecting mirror 20 to the mounting base 30 by using a fixing tool such as a screw. Therefore, the efficiency of the work at the time of assembly can be improved. For example, when the reflecting mirror 20 is screwed to the mounting base 30 from above, a screw hole is formed in the mounting base 30, so that the outer diameter of the mounting base 30 is larger than that of the reflecting mirror 20. Since the reflecting mirror 20 is configured to be screwed and fixed to the mounting base 30, the mounting base 30 can be downsized.

  Further, according to the embodiment to which the present invention is applied, the attachment portion 34 of the attachment base 30 is engaged with the holding adapters 50 and 60 provided on the installation surface or / and the attachment device. Since 35 is provided, the light source unit 1 can be easily attached and exchanged to the installation surface or / and the fixture without screwing or the like.

1 Light source unit 10 Light source module (light source)
11 Light Emitting Element 12 Mounting Board 12A Mounting Surface (Mounting Board Back)
DESCRIPTION OF SYMBOLS 14 Connector 20 Reflector 24 Flange part 25 Lower end part 30 Mounting base 31 Upper surface 34 Mounting part 35 Engagement part 36 Through-hole 37 Bottom face 41, 42 Elastic member (packing)
50, 60 holding adapter

Claims (5)

A light source module comprising a light emitting element and a mounting substrate on which the light emitting element is mounted;
The light source module is placed on the top surface, and a mounting base provided on the bottom surface side with a mounting portion to be attached to the installation surface or / and the mounting tool;
A reflecting mirror fixed to the upper surface of the mounting base and controlling the light distribution of the light source module,
When a connector that is electrically connected to the light emitting element and connected to a lead wire protrudes from the back surface of the mounting substrate and penetrates the bottom surface side on the top surface of the mounting base, and the mounting substrate is placed A light source unit characterized in that a through hole into which the connector enters is provided.   A lower end of the reflecting mirror is inserted and fixed to the mounting base, and an elastic member that presses the lower end of the inserted reflecting mirror is provided between the lower end of the reflecting mirror and the mounting base. The light source unit according to claim 1. The reflecting mirror and the mounting base are formed from a high thermal conductivity material,
The light source unit according to claim 2, further comprising a flange portion that is inserted into the mounting base and contacts the mounting base at a surface at a lower end portion of the reflecting mirror.   4. The light source unit according to claim 1, wherein a lower end portion of the reflecting mirror is screwed and fixed to the mounting base.   The attachment part of the said mounting base is provided with the engaging part hold | maintained by engaging with the holding adapter provided in the said installation surface or / and the said attachment tool, The any one of Claim 1 thru | or 4 characterized by the above-mentioned. The light source unit described in 1.

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