Terminal contact point structure and terminal having the same

1. A terminal contact point structure comprising:

an insertion portion for a conduction portion of a counterpart terminal to be inserted; and

contact portions disposed at the insertion portion and configured to contact the conduction portion of the counterpart terminal,

wherein the contact portions are disposed in a plurality of rows in a direction perpendicular to an insertion direction of the conduction portion of the counterpart terminal to form a contact group,

wherein the contact portions in the contact group are positioned displaced to each other backward-forward in the insertion direction to contact, at different timings respectively, the conduction portion of the counterpart terminal being inserted, and

wherein the terminal contact point structure comprises contact groups disposed in a plurality of rows in the insertion direction.

2. The terminal contact point structure according to claim 1 , wherein the contact portions are scattered in a direction intersecting with the insertion direction.

3. The terminal contact point structure according to claim 1 , wherein

the insertion portion has a shape of a thin plate, and

the contact portions are integrally connected with the insertion portion via connections twisted at a predetermined torsional angle.

4. The terminal contact point structure according to claim 3 , wherein all of the contact portions are twisted in a same direction.

5. A terminal comprising:

a terminal contact point structure including

an insertion portion for a conduction portion of a counterpart terminal to be inserted, and

contact portions disposed at the insertion portion and configured to contact the conduction portion of the counterpart terminal,

wherein the contact portions are disposed in a plurality of rows in a direction perpendicular to an insertion direction of the conduction portion of the counterpart terminal to form a contact group,

wherein the contact portions in the contact group are positioned displaced to each other backward-forward in the insertion direction to contact, at different timings respectively, the conduction portion of the counterpart terminal being inserted, and

wherein the terminal contact point structure comprises contact groups disposed in a plurality of rows in the insertion direction;

a mating portion to be mated with the counterpart terminal; and

a connection portion integrated with the mating portion and connected to an electric wire,

wherein the insertion portion is disposed at the mating portion.

6. The terminal contact point structure according to claim 1 ,

wherein the contact portions are in an alignment with each other in the direction perpendicular to the insertion direction,

at least one contact portion in the alignment is disposed on a front end side of the insertion direction which is positioned towards the insertion portion, and

at least one contact portion in the alignment is disposed on a rear end side of he insertion direction which is positioned away from the insertion portion.

7. The terminal contact point structure according to claim 5 ,

wherein the contact portions are in an alignment with each other in the direction perpendicular to the insertion direction,

at least one contact portion in the alignment is disposed on a front end side of the insertion direction which is positioned towards the insertion portion, and

at least one contact portion in the alignment is disposed on a rear end side of he insertion direction which is positioned away from the insertion portion.