Patent ID: 8231192

Claim:
A liquid detection unit comprising: a unit case; a sensor that is held by the unit case; and a relay terminal that has a relay portion and first and second terminals, wherein the first and second terminals are provided on both ends of the relay portion, wherein the second terminal is connected to the sensor, wherein the unit case includes: a first terminal holding portion that holds the first terminal of the relay terminal; a second terminal holding portion that holds the second terminal of the relay terminal; and a deformable portion that is provided between the first terminal holding portion and the second terminal holding portion, and that elastically deforms in a direction in which a distance between the first terminal holding portion and the second terminal holding portion is reduced, wherein the deformable portion includes a slit, and wherein the deformation portion elastically deforms so as to reduce the groove width of the slit, and wherein the deformable portion includes: a movable portion that is provided on a side of the first terminal holding portion in such an orientation that the movable portion intersects with a direction in which the relay portion of the relay terminal extends; a support portion that is provided on a side of the second terminal holding portion in such an orientation that the support portion intersects with the direction in which the relay portion of the relay terminal extends, and that is provided so as to be spaced apart from the movable portion; and a connecting portion that connects the movable portion and the support portion, and wherein the slit is defined by the movable portion, the support portion and the connecting portion.