JP2010086751A - Light source device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light source device capable of inhibiting the toppling and deformation of a connector case upon inserting or removing a connector. <P>SOLUTION: The light source device includes a substrate 3 carrying a light-emitting element on its upper surface, a heat dissipating block 5 having a projection 55 in contact with the lower surface of the substrate 3, and a connector case 4 having the connector 41 for supplying power to the substrate 3 and a substrate support 42 supporting the substrate 3. The substrate support 42 encircles the projection 55 of the heat dissipating block 5 in a plan view to be in contact with the outer peripheral surface of the projection 55. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a light source device in which a connector case having a connector portion for supplying power to a light emitting element is attached to a radiator.

  2. Description of the Related Art Conventionally, as this type of light source device, a light source module including a light emitting unit and an attachment (connector case) to which the light emitting unit is attached is attached to a radiator (for example, see Patent Document 1). In this light source device, the light emitting unit includes a circuit board and a semiconductor light emitting element such as an LED chip, and the connector case has a substantially flat base surface portion facing upward and downward, and an engaging protrusion protruding downward from the base surface portion. have. The connector case is provided with a connector portion provided at the right end portion at the front end portion of the base surface portion.

The radiator includes a base plate portion, a heat radiating fin protruding backward from the base plate portion, and an attachment protrusion protruding forward from the base plate portion. The mounting projection is formed with an insertion hole that opens upward and into which the engagement projection of the connector case is inserted, and a recess that receives the connector portion is formed on the right end side. The light source module is fixed to the heat radiating body with a clip.
JP 2007-194173 A

  However, in the light source device described in Patent Document 1, since the connector portion is formed at the right end portion of the connector case, a load in the rotational direction around the engaging protrusion is applied to the connector case when the connector is inserted and removed. The connector case is easy to tilt. Further, when the load is large, there is a problem that the engagement protrusion is damaged or the connector case itself is deformed.

  This invention is made | formed in view of the said situation, The place made into the objective is providing the light source device which can suppress tilting, a deformation | transformation, etc. of a connector case in the case of insertion / extraction of a connector.

  In order to achieve the above object, in the present invention, a substrate on which a light emitting element is mounted on an upper surface, a radiator having a convex portion in contact with the lower surface of the substrate, a connector portion for supplying electric power to the substrate, A connector having a board support part that is formed side by side in the connector insertion / extraction direction and surrounds the convex part of the heat dissipating member in a plan view and contacts the outer peripheral surface of the convex part to support the board. And a light source device including a case.

  In the light source device, the substrate support portion includes a hole portion in which the substrate is disposed, a contact portion that extends in a horizontal direction from the inner surface of the hole portion and contacts the upper surface of the substrate, and the substrate support portion. It is preferable to have a spring portion that extends obliquely upward from the lower side inside the hole and restricts the downward movement of the substrate.

  In the light source device, it is preferable that the heat radiating body has a concave portion that accommodates the connector case and the convex portion is formed in the center in plan view.

  The light source device preferably includes an engagement member that engages with the radiator and prevents the connector case from being lifted from the radiator.

  In the light source device, the connector case is preferably made of a heat resistant resin.

  The light source device includes an engagement mechanism that engages the connector case and the engagement member independently of the heat dissipator, and the heat dissipator is engaged with the connector case. And may be configured to be engageable with each other.

  According to the present invention, it is possible to prevent the connector case from being tilted or deformed when the connector is inserted or removed.

  1 to 6 show a first embodiment of the present invention, and FIG. 1 is an external perspective view of a light source device.

  As shown in FIG. 1, the light source device 1 includes a substrate 3 on which an LED 2 is mounted, a connector case 4 to which the substrate 3 is fixed, a heat dissipation block 5 as a heat radiator to which the connector case 4 is attached, a connector And a frame 6 as an engaging member for preventing the case 4 from falling off the heat dissipation block 5. The connector case 4 and the like are accommodated in the recess 51 of the heat dissipation block 5, and the light source device 1 has a substantially rectangular parallelepiped shape as a whole. The connector part 41 of the connector case 4 protrudes from the heat dissipation block 5, and power is supplied to the LED 2 by connecting a battery-side connector to the connector part 41. The light source device 1 of the present embodiment is used for, for example, a vehicular lamp, and emits white light through a reflecting mirror, a lens, and the like. Hereinafter, the plate surface direction of the substrate 3 of the LED 2 will be described as the vertical direction, the insertion / removal direction of the connector as the longitudinal direction, and the direction perpendicular to the vertical direction and the longitudinal direction as the width direction.

FIG. 2 is an exploded perspective view of the light source device.
As shown in FIG. 2, the heat dissipation block 5 has a rectangular parallelepiped shape, has a recess 51 that accommodates the connector case 4 and the like, and is formed in a shape in which a side surface on one end side in the longitudinal direction is opened. The heat dissipating block 5 is made of a metal having a relatively good thermal conductivity such as copper or aluminum, for example, a back wall 52 located on the other end in the longitudinal direction, a pair of side walls 53 located on both sides in the width direction, and a vertical direction And a bottom wall 54 located on the lower side.

  Receiving holes 52 a for receiving the front ends of the frames 6 are formed on both sides of the rear wall 52 in the width direction. Each side wall 53 is formed with a protruding portion 53 a that contacts the outer side in the width direction of the positioning portion 44 of the board support portion 42 in the connector case 4. Further, the upper surface of the protruding portion 53 a comes into contact with the lower side of the frame 6. In the present embodiment, the protruding portion 53a is formed at two locations on one end side and the other end side in the longitudinal direction. Further, a claw portion 53b that engages with the frame 6 is formed at one end in the longitudinal direction of the protruding portion 53 on one end side in the longitudinal direction.

  The upper surface of the bottom wall 54 is formed higher on the other end side than on the one end side in the longitudinal direction. At the center of the upper surface of the bottom wall 54, a convex portion 55 that protrudes upward and contacts the lower surface of the substrate 3 is formed. The convex portion 55 is formed in a substantially rectangular shape in plan view and is surrounded by the connector case 4. The connector case 4 is positioned with respect to the heat dissipation block 5 by the contact between the outer peripheral surface of the convex portion 55 and the inner peripheral surface of the board support portion 42 of the connector case 4.

  The connector case 4 has a connector part 41 connected to a battery-side connector such as a harness and a board support part 42 for positioning the board 3 in the longitudinal direction and the width direction in this order from one end side in the longitudinal direction. . The connector case 4 is formed of a resin such as glass-containing PBT, for example, except for a terminal 41a (see FIG. 3) of the connector part and a metal part such as a wiring part extending from the terminal 41a to the substrate 3 side.

  The connector part 41 is formed in a rectangular tube shape extending in the longitudinal direction, and a terminal 41a is accommodated therein. A recess 43 that can receive the frame 6 is formed between the connector portion 41 and the substrate support portion 42. The recess 43 receives a mounting portion 62b of the frame 6 described later.

  The substrate support portion 42 has a pressing portion 42 a that is electrically connected to the terminal of the connector portion 41 and abuts against the upper surface of the substrate 3. The substrate support portion 42 has a hole portion 42b that is hollowed up and down, and the substrate 3 is positioned in a longitudinal direction and a width direction at a predetermined position of the hole portion 42b. The substrate 3 is supported by the substrate support 42 by moving from below the hole 42 b of the substrate support 42 to the top. Positioning portions 44 that abut against the side walls 53 and the bottom wall 54 of the heat dissipation block 5 are formed on the outer edge in the width direction of the substrate support portion 42.

  The substrate 3 is formed in a substantially square shape in plan view, and the LED 2 is mounted in the center. A wiring pattern 31 is formed on the upper surface of the substrate 3 so as to be in contact with the pressing portion 42a. That is, the substrate 3 is urged downward by the pressing portion 42a, and power is supplied to the LEDs 2.

  The frame 6 includes a pair of extending portions 61 that are arranged on the outer side in the width direction in the concave portion 51 of the heat dissipation block 5 and extend in the longitudinal direction, and connecting portions 62 that connect the extending portions 61 on one end side in the longitudinal direction. The extending portion 61 and the connecting portion 62 are formed in a plate shape with the plate surfaces facing up and down. The frame 6 has an engaging portion 63 that is formed continuously with one end side in the longitudinal direction of each extending portion 61 and extends downward, and the engaging portion 63 has a plate shape with the plate surface facing in the longitudinal direction. Is formed. The frame 6 has a spring property and can be elastically deformed.

  Each extending portion 61 has a distal end portion 61a that is inclined so as to be lowered toward the other end in the longitudinal direction, an inclined portion 61b that is smaller in inclination than the distal end portion 61, and a curved portion 61c that is curved so as to protrude downward. A horizontal portion 61d extending horizontally is provided in this order from the other end in the longitudinal direction toward the one end. The connecting portion 62 is connected to one end in the longitudinal direction of each horizontal portion 61d, and connects the horizontal portion 62a extending to the other end in the longitudinal direction inside the horizontal portion 61d and the other end in the longitudinal direction of each horizontal portion 62a. And a mounting portion 62b extending in the width direction. The engaging portion 63 is formed with a rectangular hole 63a that engages with the claw portion 53b.

FIG. 3 is a cross-sectional view of the center of the light source device in the width direction.
As shown in FIG. 3, the substrate 3 is placed on the upper surface of the convex portion 55 of the heat dissipation block 5, and heat of the LED 2 is smoothly transferred to the convex portion 55.

  The board 3 is restricted from moving downward by the spring part 42 c of the board support part 42 in a state where the connector case 4 is removed from the heat dissipation block 5. The spring portion 42c is formed to extend obliquely upward from the lower end of the substrate support portion 42 inside the hole portion 42b. When the substrate 3 moves from the lower side to the upper side of the hole portion 42b, the spring portion 42c is elastically deformed to allow the substrate portion 3 to move upward. And if the board | substrate 3 moves upwards rather than the spring part 42c, the spring part 42c will return to an original position and will inhibit a movement below the board | substrate 3 in a front-end | tip.

  The substrate 3 moved to the upper side of the hole portion 42b is urged downward by the pressing portion 42a. The pressing portion 42a is inclined downward from the inner periphery of the hole portion 42b and extends in the horizontal direction, and has flexibility.

4 is a cross-sectional view taken along line AA in FIG.
As shown in FIG. 4, the connector case 4 and the heat dissipation block 5 are positioned by abutting the inner surface of the board support portion 42 of the connector case 4 and the outer surface of the convex portion 55 of the heat dissipation block 5. Further, the substrate support portion 42 has a claw 42d as a contact portion that contacts the upper surface of the substrate 3 when the substrate 3 comes into contact with the convex portion 55. The claw 42 d extends in the horizontal direction from the inner surface of the upper end of the hole 42 b of the substrate support portion 42.

5 is a cross-sectional view taken along the line BB in FIG.
As shown in FIG. 5, the upper surface of the positioning portion 44 is formed on the other end side in the longitudinal direction with respect to the flat surface 44a that contacts the lower end of the curved portion 61c of the extending portion 61 of the frame 6 and the flat surface 44a. And an intermediate surface 44c formed between the flat surface 44a and the inclined surface 44b and having the same height as one end in the longitudinal direction of the inclined surface 44b. When the frame 6 is installed at an intended position, the claw portion 53b is engaged with the hole 63a of the engaging portion 63, the tip portion 61a is completely received in the receiving hole 52a, and the inclined portion 61b is inclined surface 44b. And a corner formed by the intermediate surface 44c.

  In order to remove the frame 6 from the heat dissipation block 5, as shown by a broken line in FIG. 5, first, the engagement between the hole 63a and the claw 53b is released, and the curved portion 61c and the flat surface 44a are slid to move the tip portion. The entire frame 6 may be rotated around the lower end of the bending portion 61c after the entire frame 6 is moved to the one end side in the longitudinal direction by allowing at least a part of the 61a to escape from the receiving hole 52a. In other words, the frame 6 is configured so as not to rotate because the inclined portion 61b interferes with the heat dissipating block 5 and the connector case 4 even if the frame 6 is rotated about the lower end of the curved portion 61c at the desired position. .

  In the light source device 1 configured as described above, after the connector case 4 to which the substrate 3 is attached is fitted into the heat dissipation block 5 as shown in FIG. 6, the frame 6 is fixed to the connector case 4 and the heat dissipation block 5. Assembled. The light source device 1 is installed in a predetermined location such as a vehicle, and the battery side connector is connected to the connector portion 41, so that the LED 2 can be used.

  According to the light source device 1, a force in the longitudinal direction is applied to the connector case 4 when the battery-side connector is inserted into and removed from the connector portion 41. At this time, since the connector case 4 is fixed to the convex portion 55 of the heat dissipation block 5 by the board support portion 42, a load in the insertion / extraction direction is applied to the board support portion 42.

  Here, since the substrate support portion 42 surrounds the convex portion 55 and contacts in a relatively wide range, a local load is not applied to the substrate support portion 42, and deformation of the substrate support portion 42 is suppressed. Is done. Further, since the substrate support portion 42 surrounds the convex portion 55, even if the load in the plane rotation direction applied to the substrate support portion 42 is excessive, the substrate support portion 42 does not tilt. . Further, the connector case 4 is formed so that the board support portion 42 is adjacent to the connector portion 41 in the longitudinal direction, and the board support portion 42 and the connector portion 41 are formed to extend in the longitudinal direction. The structure is suitable for resisting a load in the direction, and the connector case 4 itself is not deformed.

  Accordingly, the board support portion 42 surrounds the convex portion 55 to prevent the connector case 4 from being detached from the heat dissipation block 5 and to accurately suppress deformation, tilting, and the like of the connector case 4 due to insertion and removal of the connector. it can.

  Further, according to the light source device 1 of the present embodiment, the upward movement of the connector case 4 is restricted by the frame 6, so even if an upward load is applied to the connector case 4 when the connector is inserted or removed. Further, it is possible to prevent the connector case 4 from being lifted from the heat dissipation block 5. Further, since the frame 6 is prevented from being detached from the connector case 4 and the heat radiating block 5 even when the frame 6 is rotated at an intended position, it is possible to prevent the frame 6 from falling off due to vibrations when mounted on the vehicle, for example.

  Further, according to the light source device 1 of the present embodiment, the substrate 3 is placed on the heat dissipation block 5 and the vertical positioning of the substrate 3 is performed between the heat dissipation block 5 and the substrate with respect to the heat dissipation block 5. 3 position accuracy can be improved. Therefore, the variation in the light distribution characteristics of the LED 2 with respect to the heat dissipation block 5 can be drastically reduced, which is advantageous when a lens, a reflecting mirror, or the like is installed in the heat dissipation block 5. Further, since the board 3 is positioned with respect to the heat dissipation block 5, the influence of creep due to the heat of the resin of the connector case 4 is eliminated as compared with the case where the board is positioned in the vertical direction. be able to.

  Further, according to the light source device 1 of the present embodiment, since the spring part 42c extends upward from the lower end of the connector case 4, the section of the spring part 42c can be made relatively long, and the resin of the connector case 4 Even if a glass-containing PBT having a relatively high heat resistance is used, sufficient elasticity can be imparted to the spring portion 42c. By using a heat resistant resin for the connector case 4, the influence of thermal creep between the connector case 4 and the substrate 3, the heat dissipation block 5, etc. can be reduced, which is extremely advantageous in practical use.

  7 to 11 show a second embodiment of the present invention, and FIG. 7 is an external perspective view of the light source device.

  As shown in FIG. 7, the light source device 101 includes a substrate 103 on which the LEDs 102 are mounted, a connector case 104 to which the substrate 103 is fixed, a heat dissipation block 105 to which the connector case 104 is attached, and heat dissipation from the connector case 104. And a frame 106 for preventing the block 105 from dropping off. The connector case 4 and the like are accommodated in the recess 151 of the heat dissipation block 105, and the light source device 101 has a substantially rectangular parallelepiped shape as a whole.

FIG. 8 is an exploded perspective view of the light source device.
As shown in FIG. 8, the heat dissipation block 105 has a rectangular parallelepiped shape, has a recess 151 that accommodates the connector case 104 and the like, and is formed in a shape in which a part of the side surface on one end side in the longitudinal direction is opened. The heat dissipation block 105 has a back wall 152 located on the other end in the longitudinal direction, a pair of side walls 153 located on both sides in the width direction, and a bottom wall 154 located on the lower side in the vertical direction.

  Each side wall 153 is formed with a pair of protrusions 153 a that guide the board support 142 in the connector case 104. The substrate support part 142 is formed with a protruding wall 145 that can slide in contact with the protruding part 153a. Each protrusion 153a has an engagement recess 153b that engages with the frame 106.

  At the center of the upper surface of the bottom wall 154, a convex portion 155 that protrudes upward and contacts the lower surface of the substrate 103 is formed. The convex portion 155 is formed in a substantially rectangular shape in plan view and is surrounded by the connector case 104. The connector case 104 is positioned with respect to the heat dissipation block 105 when the outer peripheral surface of the convex portion 155 and the inner peripheral surface of the board support portion 142 of the connector case 104 come into contact with each other. Further, an engaging wall 154 a that engages with a groove portion 144 a of a positioning portion 144 formed on the outer side in the width direction of the connector portion 141 is erected on one end side in the longitudinal direction of the bottom wall 154.

  The connector case 104 has a connector part 141 connected to a battery-side connector such as a harness and a board support part 142 for positioning the board 103 in the longitudinal direction and the width direction in this order from one end side in the longitudinal direction. . The connector case 104 is made of, for example, a resin such as glass-containing PBT, except for a terminal 141a (see FIG. 9) of the connector part and a metal part such as a wiring part extending from the terminal 141a to the substrate 103 side.

  The connector part 141 is formed in a rectangular tube shape extending in the longitudinal direction, and a terminal 141a is accommodated therein. A recess 143 that can receive the frame 106 is formed between the connector portion 141 and the substrate support portion 142.

  The board support part 142 has a pressing part 142 a that is electrically connected to the terminal of the connector part 141 and abuts against the upper surface of the board 103. The substrate support portion 142 has a hole portion 142b that is hollowed up and down, and the substrate 103 is positioned in a longitudinal direction and a width direction at a predetermined position of the hole portion 142b. The substrate 103 is supported by the substrate support part 142 by moving from below the hole 142b of the substrate support part 142 upward. A claw portion 146 that engages with the frame 106 is formed on the outer edge in the width direction of the substrate support portion 142.

  The substrate 103 is formed in a substantially square shape in plan view, and the LED 102 is mounted in the center. A wiring pattern 131 is formed on the upper surface of the substrate 103 so as to come into contact with the pressing portion 142a. That is, the substrate 103 is urged downward by the pressing portion 142a, and power is supplied to the LED 102.

  The frame 106 is formed in a plate shape, and is arranged side by side in the longitudinal direction in the concave portion 151 of the heat dissipation block 105 and connects a pair of extending portions 161 extending in the width direction to each extending portion 161 on both sides in the width direction. Connecting portion 162. The extension part 161 on one end side in the longitudinal direction is received in the recess part 143 of the connector case 104, and the extension part 161 on the other end side in the longitudinal direction is a recess part formed by recessing the other end part in the longitudinal direction of the board support part 142. 147. In the present embodiment, the frame 106 is configured to be able to engage with the connector case 104 independently of the heat dissipation block 105.

  Each extending portion 161 has a central portion 161a at the center in the width direction, a pair of inclined portions 161b inclined upward from the central portion 161a and extending outward in the width direction, and a pair extending downward from the outer side in the width direction of each inclined portion 161b. And a folded portion 161c. Each connecting portion 162 has a main body portion 162a that extends in the longitudinal direction and connects the lower end of each folded portion 161c, and a protruding portion 162b that extends upward from the center of the main body portion 162a.

FIG. 9 is a cross-sectional view of the center of the light source device in the width direction.
As shown in FIG. 9, the substrate 103 is placed on the upper surface of the convex portion 155 of the heat dissipation block 105 so that the heat of the LED 102 is smoothly transferred to the convex portion 155.

  The board 103 is restricted from moving downward by the spring part 142 c of the board support part 142 in a state where the connector case 104 is removed from the heat dissipation block 105. The spring portion 142c is formed to extend obliquely upward from the lower end of the substrate support portion 142 inside the hole portion 142b. The spring part 142 c only needs to be provided below the substrate support part 142, and does not necessarily have to be provided at the lower end of the substrate support part 142.

10A and 10B are cross-sectional views taken along the line CC of FIG. 9. FIG. 10A is an exploded cross-sectional view of the frame of the connector case, and FIG.
As shown in FIG. 10A, when the frame 106 is assembled to the connector case 104, when the frame 106 is moved from above to the assembly position of the connector case 104, the frame 106 is elastically deformed, so that the connecting portion 162 is connected to the connector case. Get over the protrusion of the nail portion 146 of 104. When the connecting portion 162 gets over the claw portion 146, the frame 106 returns from the elastically deformed state to the original state. At this time, since the tip of the protruding portion 162b of the connecting portion 162 is on the inner side in the width direction than the claw portion 146, the upward movement of the frame 106 is restricted, and the frame 106 is engaged with the connector case 104. In the present embodiment, the claw portion 146 of the connector case 104 and the connecting portion 162 of the frame 106 form an engagement mechanism that engages the connector case 104 and the frame 106 independently of the radiator 105.

  As shown in FIG. 10B, the connector case 104 and the heat dissipation block 105 are positioned by the contact between the inner surface of the board support portion 142 of the connector case 104 and the outer surface of the convex portion 155 of the heat dissipation block 105. Yes. Further, the substrate support part 142 has a claw 142d that comes into contact with the upper surface of the substrate 103 when the substrate 103 comes into contact with the convex portion 155. The claw 142d extends in the horizontal direction from the inner surface of the upper end of the hole 142b of the substrate support 142.

  In the light source device 101 configured as described above, the connector case 104 is attached to the connector case 104 and the frame 106 is engaged with the connector case 104, as shown in FIG. 105 can be assembled. The frame 106 fixed to the connector case 104 is elastically deformed by the connecting portion 162 being moved inward in the width direction by the protruding portion 153 a of the heat dissipation block 105 when the connector case 104 is fitted into the heat dissipation block 105. When the connecting portion 162 is engaged with the recess 153b, the connecting portion 162 is fixed to the heat dissipation block 105 in a state where the side wall 153 is biased outward in the width direction. Thereby, the man-hour at the time of the assembly of the light source device 101 can be reduced, and reduction of manufacturing cost can be aimed at.

  Further, according to the light source device 101, the board support portion 142 surrounds the convex portion 155 to prevent the connector case 104 from being detached from the heat dissipation block 105, and the connector case 104 is deformed or tilted by insertion / removal of the connector. Etc. can be accurately suppressed. Further, the provision of the frame 106 can prevent the connector case 104 from being lifted from the heat dissipation block 105 even if an upward load is applied to the connector case 104 when the connector is inserted or removed.

  Further, according to the light source device 101 of the present embodiment, the positional accuracy of the substrate 103 with respect to the heat dissipation block 105 can be improved, and variations in the light distribution characteristics of the LEDs 102 with respect to the heat dissipation block 105 can be drastically reduced. Further, the section of the spring portion 142c can be made relatively long, and even if a glass-containing PBT having a relatively high heat resistance is used as the resin of the connector case 104, sufficient elasticity can be imparted to the spring portion 142c. it can. By using a heat resistant resin for the connector case 104, the influence of thermal creep between the connector case 104, the substrate 103, the heat dissipation block 105, etc. can be reduced, which is extremely advantageous in practical use.

  In the first and second embodiments, the projections 55 and 155 of the heat dissipating blocks 5 and 105 are shown as having a quadrangular shape in plan view, but it is of course possible to have other shapes. . Moreover, although the convex part 55,155 was formed in the recessed part 51,151 and the back walls 52,152, the side walls 53,153, etc. were shown, these may be abbreviate | omitted. Moreover, although what provided one LED2,102 in one light source device 1,101 was shown, you may provide several LED. Furthermore, the shapes of the frames 6 and 106 can be arbitrarily changed, and a resin-like rod-like member or the like may be used instead of a metal frame as the engaging member, and the configuration of the engaging member is arbitrary. is there. Moreover, it is good also as a structure which abbreviate | omits an engagement member, Of course, it can change suitably also about a specific detailed structure.

FIG. 1 is an external perspective view of a light source device showing a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the light source device. FIG. 3 is a cross-sectional view of the center of the light source device in the width direction. 4 is a cross-sectional view taken along line AA in FIG. 5 is a cross-sectional view taken along the line BB in FIG. FIG. 6 is an explanatory diagram when the light source device is assembled. FIG. 7 is an external perspective view of a light source device showing a second embodiment of the present invention. FIG. 8 is an exploded perspective view of the light source device. FIG. 9 is a cross-sectional view of the center of the light source device in the width direction. 10A and 10B are cross-sectional views taken along the line CC of FIG. 9. FIG. 10A is an exploded cross-sectional view of the frame of the connector case, and FIG. 10B is a cross-sectional view of the light source device. FIG. 11 is an explanatory diagram when the light source device is assembled.

Explanation of symbols

1 Light source device 2 LED
DESCRIPTION OF SYMBOLS 3 Board | substrate 4 Connector case 5 Radiation block 6 Frame 41 Connector part 42 Board | substrate support part 51 Concave part 55 Convex part 101 Light source device 102 LED
DESCRIPTION OF SYMBOLS 103 Board | substrate 104 Connector case 105 Radiation block 106 Frame 141 Connector part 142 Board | substrate support part 151 Concave part 155 Convex part

Claims (6)

A substrate having a light emitting element mounted on the top surface;
A heat dissipating member having a convex portion in contact with the lower surface of the substrate;
A connector portion for supplying power to the substrate; and the convex portion of the heat radiating body that is formed side by side in the insertion / extraction direction of the connector portion and the connector so as to contact the outer peripheral surface of the convex portion in plan view. A light source device comprising: a connector case having a substrate support portion that supports the substrate. The substrate support part is
A hole in which the substrate is disposed;
A contact portion extending in a horizontal direction from an inner surface of the hole portion and contacting the upper surface of the substrate;
The light source device according to claim 1, further comprising: a spring portion that extends obliquely upward from the lower side of the substrate support portion to the inside of the hole portion and restricts the downward movement of the substrate.   The light source device according to claim 2, wherein the heat radiating body includes a concave portion that accommodates the connector case and the convex portion is formed at a center in a plan view.   The light source device according to claim 3, further comprising an engagement member that engages with the heat radiating body and prevents the connector case from being lifted from the heat radiating body.   The light source device according to claim 4, wherein the connector case is made of a heat resistant resin. An engagement mechanism for engaging the connector case and the engagement member independently of the radiator;
The light source device according to claim 5, wherein the engagement member is configured to be engageable with the heat radiating body in a state of being engaged with the connector case.

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