Light source unit of semiconductor-type light source of vehicle lighting device and vehicle lighting device

A light source unit of a semiconductor-type light source for a vehicle light unit, comprising:

• a light source portion and a socket portion to which the light source portion is mounted, wherein
• the light source portion comprises a mount member including a mounting surface and an abutment surface, a light emitting chip of a semiconductor-type light source, a control element for controlling light emitting of the light emitting chip, a wiring element for feeding power to the light emitting chip via the control element;
• the light emitting chip, the control element, and the wiring element are mounted onto the mounting surface of the mount portion;
• the socket portion comprises an insulation member, a heat radiation member that includes the abutment surface to which the abutment surface of the mount member is abutted and radiates heat generated by the light source portion, and a plurality of power feeding members for feeding the power to the light source portion;
• the heat radiation member and the power feeding member are incorporated mutually into the insulation member in an insulation state;
• a connector portion to which a connector at a power source side mechanically, detachably, electrically, continuously mounted is provided leaning against a center of the light source portion and the socket portions;
• the connector portion includes a part of the insulation member and a one-end part of the power feeding member;
• at least, a portion opposite to the connector portion in the heat radiation member is exposed out of the insulation member;
• a direction for mounting the light source unit to the vehicle light unit is perpendicular or substantially perpendicular with respect to the mounting surface on the mount member;
• and
• a direction for mounting the connector at the power source side to the connector portion is perpendicular or substantially perpendicular with respect to the direction for mounting the light source unit to the vehicle light unit.