Electronic circuit unit capable of external connection

An electronic circuit unit, comprising:

• a circuit board including a first edge part and a second edge part facing opposite sides and a plurality of first conductors for connection and a plurality of second conductors for connection provided on opposed first and second surfaces of the respective edge parts;
• a plurality of first terminals provided on ends of wires to be connected to the first conductors for connection of the circuit board and each including a board contact portion which comes into contact with the corresponding first conductor for connection;
• and
• a plurality of second terminals provided on ends of wires to be connected to the second conductors for connection of the circuit board and each including a board contact portion which comes into contact with the corresponding second conductor for connection;
• and
• a case configured to house the circuit board;
• wherein:
• the case is divided into a first case member and a second case member;
• the first case member includes a first board housing portion configured to house a part of the circuit board on the side of the first edge part while holding the part from both sides in a plate thickness direction, a first terminal holding portion configured to hold each first terminal, the first terminal holding portion including an intermediate wall interposed between a group of the first terminals to be held in contact with the first conductors for connection on the first surface of the circuit board and a group of the second terminals to be held in contact with the second conductors for connection on the second surface of the circuit board, and a front end part of the intermediate wall located at a position retracted from the board contact portion of each first terminal and constituting a first board restraining portion configured to restrain the first edge part in a board restraining direction perpendicular to the plate thickness direction of the circuit board and parallel to an axial direction of the first terminals;
• the second case member includes a second board housing portion configured to house a part of the circuit board on the side of the second edge part while holding the part from both sides in the plate thickness direction, a second terminal holding portion configured to hold each second terminal, the second terminal holding portion including an intermediate wall interposed between a group of the second terminals to be held in contact with the second conductors for connection on the first surface of the circuit board and a group of the second terminals to be held in contact with the second conductors for connection on the second surface of the circuit board, and a front end part of the intermediate wall is located at a position retracted from the board contact portion of each second terminal and constituting a second board restraining portion configured to restrain the second edge part in the board restraining direction;
• the first and second case members are shaped to restrain the circuit board between the first and second board restraining portions in a state united with each other;
• the first terminal holding portion includes a plurality of terminal accommodating chambers into which each first terminal is insertable from the outside to the inside of the case and a plurality of terminal locking portions configured to lock each first terminal inserted into the terminal accommodating chamber at a position where the board contact portion of the first terminal comes into contact with the corresponding one of the first conductors for connection;
• and
• the second terminal holding portion includes a plurality of terminal accommodating chambers into which each second terminal is insertable from the outside to the inside of the case and a plurality of terminal locking portions configured to lock each second terminal inserted into the terminal accommodating chamber at a position where the board contact portion of the second terminal comes into contact with the corresponding one of the second conductors for connection.

An electronic circuit unit, comprising:

• a circuit board including an edge part and a plurality of conductors for connection provided on a surface thereof;
• a plurality of terminals provided on ends of wires to be connected to the respective conductors for connection of the circuit board and each including a board contact portion which comes into contact with the corresponding conductor for connection;
• a case including a board housing portion configured to house the circuit board while holding the circuit board at a specific board holding position and a terminal holding portion configured to hold each terminal;
• the board housing portion has a main body with side walls configured to hold the circuit board from both sides in a plate thickness direction of the circuit board while guiding the circuit board in the board inserting direction and an opening open toward a side opposite to the terminal holding portion and shaped to allow the circuit board to be inserted in a board inserting direction perpendicular to the plate thickness direction and toward the terminal holding portion through the opening with the edge part in the lead;
• the terminal holding portion includes a plurality of terminal insertion portions through which the respective terminals are insertable from the outside to the inside of the case, a plurality of terminal accommodating chambers into which each terminal is inserted, and a plurality of terminal locking portions configured to lock the terminal inserted into each terminal accommodating chamber at a position where the board contact portion of the terminal comes into contact with the corresponding one of the conductors for connection;
• a lid portion removably attached to the main body to close the opening, the lid portion including an opening closing member made of a resiliently deformable material press-fitted into the opening of the main body while being resiliently deformed and an outer peripheral surface held in close contact with an inner peripheral surface of the opening of the main body to seal the interior;
• and
• a plurality of wire-side waterproof members provided to seal a clearance between each of the plurality of wires and inner peripheral surfaces of the corresponding terminal inserting portion.