Abstract: A lock detection structure of a connector, includes: a first connector housing (63) having a connector lock projection (65); a second connector housing (39) having a deformable lock arm (49); and a lock detecting member (33, 83) for detecting whether the connector lock projection is locked with the deformable lock arm.

Abstract: A case having a case body, in which a plurality of terminal accommodating chambers are formed in parallel, and an elastic waterproof portion, which is formed integrally with the case body and which has a plurality of wire insertion holes into which covered wires are inserted in a waterproof state is inserted through an opened portion of a connector housing so that the elastic waterproof portion is fitted to the opened portion in a waterproof state. Therefore, when the covered wires are inserted into the wire insertion holes, the projecting portions of the covered wires simply are required to be adjusted to have a predetermined length. Thus, the necessity of furthermore adjusting the projection portion when the solderless connection is established can be eliminated.