Connector, and LED lighting apparatus using the connector

A connector comprising a plug connector and a receptacle connector which are disconnectably connected to each other to connect a circuit board and connecting object to each other in a manner to allow said circuit board and said connecting object to move relative to each other in one of a common plane, in which the circuit board and the connecting object both lie, and in mutually parallel planes, in which the circuit board and the connecting object respectively lie,

• wherein said receptacle connector comprises:
• a receptacle contact which is fixed to one side of said circuit board, said receptacle contact including a pair of holding portions which are resiliently deformable in opposite directions away from each other, and a pair of guide portions which are spaced from each other with said pair of holding portions positioned therebewteen, wherein each guide portion of said pair of guide portions includes a support groove,
• wherein said plug connector comprises:
• a plug contact which is electrically connected to said connecting object;
• and
• a plug insulator which holds said plug contact,
• wherein said plug contact is formed as a plate-shaped member which is linearly elongated in a direction parallel to said plane and resiliently deformable in a direction of thickness of said plate-shaped member, which is held between said pair of holding portions to be movable in said linearly elongated direction, and which includes a contact portion that is engaged in said support grooves of said pair of guide portions, and
• wherein said plug insulator includes an opening on a portion thereof facing said circuit board, and an accommodation space for accommodating said receptacle contact and said plug contact.