Connection structure for connector

1 . A connection structure for a connector to be connected to a connection part of a circuit board supported by a holder,

wherein the connection part and the connector are joined in an insertable/removable manner, and

the holder is provided with:

a circuit board restricting part configured to engage with the circuit board electrically connected to the connector to restrict movement of the circuit board in a direction separating from the connector; and

a connector restricting part configured to engage with the connector electrically connected to the circuit board to restrict movement of the connector in a direction separating from the circuit board,

the connector is provided with a flange extending out in a direction perpendicular to a connection direction of the connector,

the holder is provided with a support surface for supporting the circuit board,

the connector restricting part includes a projecting piece that projects from a part of the support surface on a side of the flange away from the circuit board, and

when the connector is moved in a direction separating from the circuit board, the projecting piece contacts the flange and restricts movement of the connector.

2 . The connection structure for the connector according to claim 1 , wherein the flange is provided with a pressing surface facing a distal side in the connection direction.

3 . The connection structure for the connector according to claim 1 , wherein the projecting piece is provided with a slope that is inclined toward the circuit board as approaching the support surface.

4 . The connection structure for the connector according to claim 1 , wherein a surface of the flange on a side of the circuit board is in parallel with an end surface of the circuit board on a side of the connection part.

5 . The connection structure for the connector according to claim 1 , wherein when a distance between the circuit board and the connector in an insertion direction is greater than a predetermined threshold value, the flange and the projecting piece cooperate to prohibit support of the circuit board on the holder.

6 . The connection structure for the connector according to claim 5 , wherein the connector includes at least one terminal member which can be electrically connected to a terminal(s) of the circuit board by contacting the terminal(s) of the circuit board, and

when the distance is less than or equal to the threshold value, all of the terminal member(s) of the connector is/are connected to the corresponding terminal(s) of the circuit board.

7 . The connection structure for the connector according to claim 5 , wherein the connector includes at least one terminal member which can be electrically connected to a terminal(s) of the circuit board by contacting the terminal(s) of the circuit board,

the terminal member is provided with multiple contacts configured to contact the terminal of the circuit board, and

when the distance is less than or equal to the threshold value, at least one contact of the multiple contacts included in each terminal member contacts the corresponding terminal of the circuit board.

8 . The connection structure for the connector according to claim 5 , wherein the connector includes at least one terminal member which can be electrically connected to a terminal(s) of the circuit board by contacting the terminal(s) of the circuit board,

the terminal member is provided with multiple contacts configured to contact the terminal of the circuit board, and

when the distance is less than or equal to the threshold value, all of the contacts of the terminal member contact the corresponding terminal of the circuit board.

9 . The connection structure for the connector according to claim 1 , wherein the connection part includes an electrically conductive pattern extending in the connection direction on a surface of the circuit board.