A seal cover ( 1 ) is provided for closing an opening portion ( 10 ) in a device in which a standby connector ( 11 ) is disposed. The standby connector ( 11 ) includes male terminals 11 B for switching a state of an energizing circuit between a conductive state and a non-conductive state. Female terminals ( 23 B), a shaft seal ( 25 ) and an O-ring ( 23 D) are arranged in such a positional relationship that a time point when the shaft seal ( 25 ) is compressed maximally, a time point when the O-ring ( 23 D) is compressed maximally and a time point when the female terminals ( 23 B) are resiliently deformed maximally do not overlap with each other when the seal cover ( 1 ) is mounted on the opening portion ( 10 ).
1. A seal cover for closing an opening portion provided in a device in which a standby connector is disposed, the standby connector including a standby terminal for switching a state of an energizing circuit between a conductive state and a non-conductive state is disposed, the seal cover comprising:
a lid for covering an opening of the opening portion;
a fitting disposed on a back surface of the lid and configured to be fit into the opening portion, a first ring made of resin and fit on an outer peripheral surface of the fitting, the first ring being disposed and configured to be compressed and held in close contact with an inner peripheral surface of the opening portion and
an interlock connector projecting from the fitting, the interlock connector being configured and disposed to be connectable to the standby connector, the interlock connector including a detection terminal to be pressed into contact with the standby terminal, a second ring made of resin being fit on an outer peripheral surface of the interlock connector and being configured and disposed to be compressed and held in close contact with an inner peripheral surface of the standby connector,
one of the standby terminal and the detection terminal being resiliently deformed and pressed into contact with the other of the standby terminal and the detection terminal;
the detection terminal, the first ring and the second ring being arranged in such a positional relationship that a time point when the first ring is compressed maximally, a time point when the second ring is compressed maximally and a time point when the one terminal is resiliently deformed maximally do not overlap with each other when the seal cover is mounted on the opening portion.
2. The seal cover of claim 1 , further comprising:
an annular step formed on the outer peripheral surface of the interlock connector and protruding over an entire circumference and having the second ring fit thereon and a rib provided on the outer peripheral surface of the interlock connector in front of the step in a connecting direction and to be pressed into contact with the inner peripheral surface of the standby connector and squeezed when the interlock connector is connected to the standby connector; and
the detection terminal, the first ring, the second ring and the rib are arranged in such a positional relationship that the time point when the first ring is compressed maximally, the time point when the second ring is compressed maximally, the time point when the one terminal is resiliently deformed maximally and a time point when the squeezing of the rib is finished do not overlap with each other when the seal cover is mounted on the opening portion.