RESIN STRUCTURE

A resin structure includes a body divided into regions and a lid to cover one of the regions. The body includes a first partition wall extending in a partition direction to partition a pair of regions. The lid covers one of the pair of regions and includes a second partition wall extending along the first partition wall. The first partition wall has a protrusion at an end of the first partition wall, the protrusion protruding toward the second partition wall, and having a first inclined surface inclined in a manner gradually approaching a distal end side in the partition direction toward a distal end of the protrusion away from the first partition wall. The second partition wall has a second inclined surface inclined along the first inclined surface. The lid is to be attached to the body being guided by the second inclined surface facing the first inclined surface.