Busbar

A bus bar comprising:

• a base part disposed along a circuit board;
• a bus bar pin mounted onto the circuit board, the bus bar pin being formed integrally by
• a vertical part that extends upwards from the base part in a vertical direction relative to the circuit board,
• a pin foot part that extends downwards from the base part in a vertical direction relative to a side of the circuit board,
• a connecting part that connects the vertical part and the pin foot part, and
• a bottom part, that forms a surface that is approximately parallel to the circuit board, is formed at a bottom end of the pin foot part,
• wherein the base part supports the bus bar pin;
• and
• a pair of support columns formed at two opposite ends of the base part and clamp the circuit board to fix the bus bar pin to the circuit board,
• wherein:
• the support columns each include
• a main body part that is joined to the base part and abuts a surface of the circuit board,
• a fitting part that extends from the main body part and fits to circuit board, and
• a stepped part that abuts the surface of the circuit board and is formed between the main body part and the fitting part, and
• the bus bar further includes pawl parts locking onto an underside surface of the circuit board and formed at an end of each support column,
• the support columns grip the circuit board in a board thickness direction by the stepped parts and the pawl parts.