Oil-pressure-sensor attachment structure

An oil-pressure-sensor attachment structure for attaching an oil pressure sensor to an oil channel body having therein an oil channel through which oil flows, the oil pressure sensor configured to measure a pressure of the oil flowing through the oil channel,

• the oil channel body including a lower body, and an upper body that is arranged at an upper side of the lower body in a superposed manner,
• the lower body having an oil channel opening that is provided at an upper surface of the lower body and communicates with the oil channel,
• the oil pressure sensor including a sensor main body, and a sensor case that covers the sensor main body,
• the sensor case configured to be placed on the upper surface of the lower body, and having a sensing hole at a lower surface of the sensor case, the sensing hole communicating with the oil channel opening in a state in which the sensor case is placed on the upper surface of the lower body,
• the oil-pressure-sensor attachment structure comprising:
• the upper body;
• the sensor case;
• and
• a connection member including an electrical connection portion that electrically connects an external power supply with the sensor main body,
• wherein the contact member contacts the upper body from an upper side of the upper body,
• wherein the upper body has a through hole penetrating through the upper body in an up-down direction, and
• wherein the sensor case includes
• a columnar portion that extends in the up-down direction and is inserted into the through hole,
• a flange portion that protrudes outward in a radial direction from the columnar portion and is arranged to face a lower side of the upper body, and
• a first hook portion that is hooked to the connection member.