A female connection terminal includes a first female terminal having a substantially cylindrical shape with openings at one end and another end, a second female terminal having a substantially cylindrical shape with openings at one end and another end, and a coupling spring coupling together the first female terminal and the second female terminal at the other end of the first female terminal and the other end of the second female terminal. The coupling spring connects the first female terminal and the second female terminal to each other without, when viewed from an upper side, overlapping at least one of the openings of the first female terminal on the other end side and at least one of the openings of the second female terminal on the other end side.
1. A connector comprising:
a housing having a substantially box shape with an opening in an upper part; and
a female connection terminal housed inside the housing,
the female connection terminal including:
a first female terminal having a substantially cylindrical shape with openings at one end and another end, and allowing a first male terminal to be inserted thereinto from the one end;
a second female terminal having a substantially cylindrical shape with openings at one end and another end, and allowing a second male terminal to be inserted thereinto from the one end; and
a coupling spring coupling together the first female terminal and the second female terminal at the other end of the first female terminal and the other end of the second female terminal that are located on the opening side of the housing,
the coupling spring connecting the first female terminal and the second female terminal to each other without, when viewed from an upper side, overlapping at least one of the openings of the first female terminal on the other end side and at least one of the openings of the second female terminal on the other end side.
2. The connector according to claim 1 , wherein the coupling spring couples together the first female terminal and the second female terminal at points at which the first female terminal and the second female terminal are closest to each other.
3. The connector according to claim 1 , wherein the coupling spring is composed of a first extension part extending from the other end of the first female terminal, a second extension part extending from the other end of the second female terminal, and a connection part connecting a leading end of the first extension part and a leading end of the second extension part to each other.
4. The connector according to claim 3 , wherein the connection part is configured to be elastically deformable in an insert direction of the first male terminal and the second male terminal.
5. The connector according to claim 1 , wherein the first female terminal is fixed on the housing, while the second female terminal is clearance-fitted at a prescribed position inside the housing.
6. The connector according to claim 5 , wherein the second female terminal has a clearance from the housing.
7. The connector according to claim 1 , wherein the first female terminal, the second female terminal, and the coupling spring of the female connection terminal are integrally formed by cutting and bending a metal plate.
8. The connector according to claim 1 , wherein the female connection terminal is configured so as to allow a leading end of the first male terminal inserted into the first female terminal to be protruded to the upper side beyond the other end of the first female terminal, and to allow a leading end of the second male terminal inserted into the second female terminal to be protruded to the upper side beyond the other end of the second female terminal.
9. The connector according to claim 8 , wherein the housing is configured such that the first male terminal and the second male terminal protrude through an upper surface of the housing.