Abstract: Provided is a small-sized circuit board fixing structure capable of enabling a circuit board on a base to be easily replaced. A circuit board fixing structure configured to fix a circuit board onto a surface of a base includes a wire pattern formed on a surface of the circuit board, a first through hole penetrating from a front surface to a rear surface of the circuit board, a second through hole penetrating from a front surface to a rear surface of the base so as to communicate with the first through hole, an electrode penetratively inserted into the second through hole, and a fixing member engaged with the electrode mounted on the surface of the circuit board and configured to fix the circuit board to the base, in which when the fixing member and the electrode are engaged, the wire pattern and the electrode are electrically connected through the fixing member.

Abstract: Provided is a small-sized circuit board fixing structure capable of enabling a circuit board on a base to be easily replaced. A circuit board fixing structure configured to fix a circuit board onto a surface of a base includes a wire pattern formed on a surface of the circuit board, a first through hole penetrating from a front surface to a rear surface of the circuit board, a second through hole penetrating from a front surface to a rear surface of the base so as to communicate with the first through hole, an electrode penetratively inserted into the second through hole, and a fixing member engaged with the electrode mounted on the surface of the circuit board and configured to fix the circuit board to the base, in which when the fixing member and the electrode are engaged, the wire pattern and the electrode are electrically connected through the fixing member.

Abstract: A discharge lamp (10) has a fixing base (20) on one end. In some embodiments, the fixing base comprises a cylindrical first body portion (21) having a pair of notches (21H), a cylindrical second body portion being larger than the diameter of the first body portion and having a joint (23H), and a groove portion (25) formed in between the first and second body portion and having an equal or less diameter of a space of the pair of notches. A first body portion and a stepped surface (21B) of the groove portion is contacted to a base surface of a lamp holder (50) when the fixing base is inserted to the lamp holder.

Abstract: A discharge lamp (10) has a fixing base (20) on one end. In some embodiments, the fixing base comprises a cylindrical first body portion (21) having a pair of notches (21H), a cylindrical second body portion being larger than the diameter of the first body portion and having a joint (23H), and a groove portion (25) formed in between the first and second body portion and having an equal or less diameter of a space of the pair of notches. A first body portion and a stepped surface (21B) of the groove portion is contacted to a base surface of a lamp holder (50) when the fixing base is inserted to the lamp holder.