Terminal block

A terminal block, comprising

• a housing including a connection surface to which an electromagnetic relay is connectable and a holding member is attachable,
• the holding member that holds the electromagnetic relay in a state of being connected to the connection surface, including:
• a main body portion having an elongated plate shape;
• an arm portion at a first end of the main body portion in an extending direction, the arm portion extending in a direction intersecting a plate surface of the main body portion;
• and
• a claw portion at a second end on a side opposite to the first end of the main body portion in the extending direction, the claw portion extending in a direction away from the main body portion from the second end toward the first end and being elastically deformable in a direction approaching the main body portion, wherein
• the housing includes
• at least one attachment groove that opens to the connection surface and extends toward inside of the housing along a first direction intersecting the connection surface,
• the at least one attachment groove includes
• a first groove portion and a second groove portion respectively capable of accommodating the second end of the main body portion in a state where the main body portion extends in the first direction and the arm portion extends in a second direction intersecting the first direction and the plate surface of the main body portion so that the connected electromagnetic relay can be sandwiched together with the connection surface, the first groove portion and the second groove portion being disposed adjacent to and communicating with each other in a third direction intersecting the first direction and the second direction;
• the first groove portion includes:
• a first narrow width portion disposed near the connection surface in the first direction, the first narrow width portion being capable of accommodating the claw portion in an elastically deformed state;
• a wide width portion disposed farther from the connection surface than the first narrow width portion in the first direction, the wide width portion being capable of accommodating the claw portion without elastically deforming;
• and
• a step portion at a boundary of the first narrow width portion and the wide width portion, the step portion coming into contact with a tip on the first end side of the claw portion accommodated in the wide width portion to be capable of restricting a movement of the holding member in a removal direction that is the first direction from the inside of the housing toward the outside of the housing, and
• the second groove portion is configured to be capable of accommodating the claw portion without elastically deforming and capable of releasing a restriction of the movement of the holding member in the removal direction by the step portion when the holding member accommodated in the first groove portion moves to the second groove portion.