A terminal having a dissimilar material different from a contact base material, the dissimilar material arranged on a surface of a sliding contact portion on which a mating terminal slides includes a groove provided in the sliding contact portion in a direction different from a sliding direction of the mating terminal.
1. A terminal having a dissimilar material different from a contact base material, the dissimilar material arranged on a surface of a sliding contact portion on which a mating terminal slides, the terminal comprising,
a plurality of adhesion abrasion powder catching grooves provided in the sliding contact portion in a direction different from a sliding direction of the mating terminal, wherein
the plurality of adhesion abrasion powder catching grooves is provided on a whole circumference and on an entire sliding range of the sliding contact portion on which the mating terminal slides,
the plurality of adhesion abrasion powder catching grooves is provided at approximately equal intervals along the sliding direction of the mating terminal,
the plurality of the adhesion abrasion powder catching grooves catches an abrasion powder generated from repeated sliding between the mating terminal and the surface of the sliding contact portion,
the direction of the plurality of adhesion abrasion powder catching grooves is perpendicular to the sliding direction of the mating terminal,
the plurality of adhesion abrasion powder catching grooves is arranged at predetermined intervals, and
a width of each of the plurality of adhesion abrasion powder catching grooves is smaller than the predetermined intervals.
2. The terminal according to claim 1 , wherein the contact base material comprises a copper alloy material.
3. The terminal according to claim 1 , wherein the predetermined intervals are set to a length to reduce a growth of the adhesion abrasion powder, the growth of the adhesion abrasion powder causing an increase in a sliding resistance between the sliding contact portion and the mating terminal.
4. The terminal according to claim 1 , wherein the adhesion abrasion powder crosses one or more of the plurality of adhesion abrasion powder catching grooves of the sliding contact portion and a growth of the adhesion abrasion powder is stopped.
5. The terminal according to claim 4 , wherein the adhesion abrasion powder crosses one or more of the plurality of adhesion abrasion powder catching grooves of the sliding contact portion and a growth of a particle size of the adhesion abrasion powder to a large particle size is prevented.
6. The terminal according to claim 5 , wherein the adhesion abrasion powder enters the one or more of the plurality of adhesion abrasion powder catching grooves such that a ratio of the adhesion abrasion powder located on the surfaces of the sliding contact portion and the mating terminal and in the one or more of the plurality of adhesion abrasion powder catching grooves is suppressed.
7. The terminal according to claim 5 , wherein the adhesion abrasion powder enters one or more of the plurality of adhesion abrasion powder catching grooves such that only small particles of the adhesion abrasion powder lie between the sliding contact portion and the mating terminal.