Liquid pressure control device and method for manufacturing same

A method for manufacturing a liquid pressure control device including:

• a housing having a first surface intersecting a first direction, being provided inside with a fluid passage;
• a case having a peripheral wall, a lower surface positioned inside the peripheral wall, spaced from the first surface in the first direction, facing the first surface, an upper surface opposite to the lower surface, and a partition wall provided with a recessed portion recessed from the upper surface in a direction opposite to the first direction, and with a through hole passing through a bottom wall of the recessed portion;
• a circuit board for liquid pressure control, having a connection surface facing the upper surface, and a land provided on the connection surface;
• a connection conductor having a first end portion protruding from the recessed portion, being an end portion in the first direction, and a second end portion accommodated in the recessed portion, being an end portion in a direction opposite to the first direction, the connection conductor being electrically connected to the land in an elastically deformed state;
• and
• a sensor attached to the housing, having a terminal protruding in the first direction and passing through the through hole, the terminal being in contact with the second end portion and electrically connected to the second end portion, the method comprising:
• a first step of applying a first load to an elasticity retention mechanism to hold the circuit board by the elasticity retention mechanism by pressing the circuit board against the case in a direction opposite to the first direction, while the case is supported in the first direction by a support part, to cause a separation state in which the case is further spaced from the housing in the first direction than in an assembled state in which the housing and the case are assembled, and in which the second end portion supported by the bottom wall is spaced from the terminal in the first direction;
• and
• a second step of causing the case to approach the housing in the direction opposite to the first direction with the circuit board held by the elasticity retention mechanism to assemble the housing and the case.