Connector including heat storage member that is elastically deformable in accordance with shape of accommodation space

There is provided a connector including: an electric wire; a terminal connected to the electric wire; a housing having an accommodation space inside the housing, the accommodation space accommodating a connection portion between the electric wire and the terminal; a seal member configured to seal an opening portion of the accommodation space to isolate the connection portion accommodated in the accommodation space from outside; and a heat storage member disposed in the accommodation space to surround the connection portion. The heat storage member is deformable to elastically expand and contract in accordance with a shape of the accommodation space. A first part of the heat storage member is in contact with an inner surface of the housing defining the accommodation space, and a second part of the heat storage member is in contact with an outer surface of the connection portion.