Light source module

Abstract

A light source module includes a circuit board on which a predetermined conductive pattern is formed, a semiconductor light emitting element mounted on the circuit board, and a plurality of power supplying terminals to which power cords for supplying electric power to the semiconductor light emitting element are connected. An entire lower face of the circuit board is electrically insulated, and the plurality of power supplying terminals is fixed onto the conductive pattern on the circuit board. The plurality of power supplying terminals protrudes from the circuit board.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded perspective view showing a light source unit including a light source module, a heat radiating body and a clip.

FIG. 2 is an enlarged plan view showing a positional relation between the light source module and the heat radiating body.

FIG. 3 is a sectional view taken on line a III-III in FIG. 2.

FIG. 4 is an exploded perspective view showing the light source unit and an optical component in which the light source module is fixed to the heat radiating body by a clip.

FIG. 5 is a sectional view of a vehicle lamp.

Claims

1. A light source module comprising: a circuit board on which a predetermined conductive pattern is formed;a semiconductor light emitting element mounted on the circuit board; anda plurality of power supplying terminals to which power cords for supplying electric power to the semiconductor light emitting element are connected,wherein an entire lower face of the circuit board is electrically insulated, the plurality of power supplying terminals is fixed onto the conductive pattern on the circuit board, and the plurality of power supplying terminals protrudes from the circuit board.

2. The light source module according to claim 1, wherein the circuit board includes a plurality of layers of substrates, and an upper face of the circuit board is positioned higher than an upper face of each of the power supplying terminals.

3. The light source module according to claim 1, wherein the circuit board is formed in a rectangular shape, and the plurality of power supplying terminals protrudes from one side of the circuit board.

4. The light source module according to claim 1, wherein a thickness of the conductive pattern is 30 μm or more, and the plurality of power supplying terminals is fixed to the conductive pattern by means of a welding.

5. The light source module according to claim 1, wherein a recess portion is formed on the circuit board between the plurality of power supplying terminals.

6. A light source unit for a vehicle, the light source unit comprising: a light source module; anda heat radiating body having a heat absorbing face, wherein the light source module comprises: a circuit board on which a predetermined conductive pattern is formed;a semiconductor light emitting element mounted on the circuit board; anda plurality of power supplying terminals to which power cords for supplying electric power to the semiconductor light emitting element are connected,wherein an entire lower face of the circuit board is electrically insulated, and is in contact with the heat absorbing face, the plurality of power supplying terminals is fixed onto the conductive pattern on the circuit board, and the plurality of power supplying terminals protrudes from the circuit board.

7. The light source unit according to claim 6, wherein the circuit board includes a plurality of layers of substrates, and an upper face of the circuit board is positioned higher than an upper face of each of the power supplying terminals.

8. The light source unit according to claim 6, wherein the circuit board is formed in a rectangular shape, and the plurality of power supplying terminals protrudes from one side of the circuit board.

9. The light source unit according to claim 6, wherein a thickness of the conductive pattern is 30 μm or more, and the plurality of power supplying terminals are fixed to the conductive pattern by means of a welding.

10. The light source unit according to claim 6, further comprising a clip that is operable to fix the light source module to the heat radiating body, wherein a recess portion is formed on the circuit board, and an engaging protrusion that is operable to engage with the recess portion is formed on the clip.