Light source unit and vehicular lamp
A light source unit includes a board, a resin-molded unit formed using a resin material as a base material and having thermal conductivity, and a socket housing including a heat sink formed of a metal material, and a board attachment portion to which the board is attached and a covered surface which is covered with the resin-molded unit, wherein the resin-molded unit is formed with a holding hole communicating with the covered surface, and the heat sink and the resin-molded unit are formed by integral molding when a portion of the covered surface and a portion of the attachment surface are pressed by a portion of a mold inserted through the holding hole and another portion of the mold, respectively.
1. A light source unit comprising:
a socket housing including a heat sink formed of a metal material and having a board attachment portion, and a resin-molded unit formed using a resin material as a base material and having thermal conductivity;
a board attached to the board attachment portion; and
a light emitting element mounted on the board and configured to function as a light source,
wherein the board attachment portion is formed with an attachment surface to which the board is attached and a covered surface which is at least partially covered with the resin-molded unit,
a holding hole in which a portion of the covered surface is exposed is formed in the resin-molded unit, and
in the socket housing, the heat sink and the resin-molded unit are formed by integral molding in a state in which the portion of the covered surface and at least a portion of the attachment surface are pressed by a portion of a mold inserted through the holding hole and another portion of the mold, respectively.
2. The light source unit of claim 1 , wherein the attachment surface and the covered surface are formed as opposite surfaces on the board attachment portion.
3. The light source unit of claim 2 , wherein a concave portion or a convex portion is formed on the portion of the covered surface of the board attachment portion exposed through the holding hole.
4. The light source unit of claim 3 , wherein the resin-molded unit includes a connector connecting portion in which a connection terminal is disposed to be connected to a connector, and
the holding hole is positioned inside the connector connecting portion.
5. The light source unit of claim 2 , wherein the resin-molded unit includes a connector connecting portion in which a connection terminal is disposed to be connected to a connector, and
the holding hole is positioned inside the connector connecting portion.
6. The light source unit of claim 1 , wherein a concave portion or a convex portion is formed on the portion of the covered surface of the board attachment portion exposed through the holding hole.
7. The light source unit of claim 6 , wherein the resin-molded unit includes a connector connecting portion in which a connection terminal is disposed to be connected to a connector, and
the holding hole is positioned inside the connector connecting portion.
8. The light source unit of claim 1 , wherein the resin-molded unit includes a connector connecting portion in which a connection terminal is disposed to be connected to a connector, and
the holding hole is positioned inside the connector connecting portion.
9. The light source unit of claim 1 , wherein a positioning notch is formed on an outer peripheral portion of the resin-molded unit.
10. A vehicular lamp comprising:
a light source unit,
wherein the light source unit includes:
a socket housing including a heat sink formed of a metal material and having a board attachment portion, and a resin-molded unit formed using a resin material as a base material and having thermal conductivity;
a board attached to the board attachment portion; and
a light emitting element mounted on the board and configured to function as a light source,
wherein the board attachment portion is formed with an attachment surface to which the board is attached and a covered surface which is at least partially covered with the resin-molded unit,
a holding hole in which a portion of the covered surface is exposed is formed in the resin-molded unit, and
in the socket housing, the heat sink and the resin-molded unit are formed by integral molding in a state in which the portion of the covered surface and at least a portion of the attachment surface are pressed by a portion of a mold inserted through the holding hole and another portion of the mold, respectively.
11. The vehicular lamp of claim 10 , wherein a positioning notch is formed on an outer peripheral portion of the resin-molded unit.
12. A light source unit comprising:
a socket housing including a heat sink formed of a metal material and having a board attachment portion, and a resin-molded unit formed using a resin material as a base material and having thermal conductivity;
a board attached to the board attachment portion; and
a light emitting element mounted on the board and configured to function as a light source,
wherein the board attachment portion is formed with an attachment surface to which the board is attached and a covered surface which is at least partially covered with the resin-molded unit,
a holding hole configured to communicate with the covered surface is formed in the resin-molded unit,
in the socket housing, the heat sink and the resin-molded unit are formed by integral molding in a state in which a portion of the covered surface and at least a portion of the attachment surface are pressed by a portion of a mold inserted through the holding hole and another portion of the mold, respectively,
the resin-molded unit includes a connector connecting portion in which a connection terminal is disposed to be connected to a connector, and
the holding hole is positioned inside the connector connecting portion.
13. The light source unit of claim 12 , wherein a positioning notch is formed on an outer peripheral portion of the resin-molded unit.