Terminal connection structure

A terminal connection structure comprising:

• a male terminal metal fitting including a columnar or cylindrical male connector;
• a female terminal metal fitting including a female connector in which a columnar internal space into which the male connector is inserted in an axial direction is provided, and an electric wire connector to which a conductive portion of an electric wire is electrically connected;
• and
• a holding structure that is interposed between the male connector, housing of which into the internal space is completed, and the female terminal metal fitting and that generates holding force between the male connector and the female terminal metal fitting, wherein
• the holding structure includes two first holding bodies that are arranged between the male connector and the female connector in a first region of the internal space comparted into two regions in a cylinder axis direction of the female connector and that become contact points between the male connector and the female connector, two second holding bodies that are arranged between the male connector and the female connector in a second region of the internal space and that become contact points between the male connector and the female connector, and a third holding body that is arranged on an opposite side of the first holding bodies in the cylinder axis direction with respect to the second holding bodies and that becomes a contact point between the male connector and the female terminal metal fitting,
• the first holding bodies are respectively arranged, on a side of one opening of the female connector, in the two regions of the first region,
• the second holding bodies are respectively arranged, on a side of another opening of the female connector, in two regions formed by dividing the second region of the internal space into two, and
• the third holding body is arranged in such a manner as to be placed between the first holding bodies when seen in the cylinder axis direction of the female connector, wherein
• the two regions of the first region and the two regions of the second region are regions that are positioned, in a non-overlapping manner in respective radial directions, around an axis extending in the cylinder axis direction.