Patent ID: 8137123
Filing Date: 2012-03-20
Classification: H01R

Abstract:
1. A connector including: a connector housing having terminal insert holes extending forward and backward; and terminals respectively inserted into the terminal insert holes of the connector housing from a rear part, a flexible lance being provided in each of the terminal insert holes of the connector housing to prevent the terminal slipping out rearward when the terminal is inserted into each terminal insert hole from the rear part, wherein the connector housing includes a connector housing main body having the terminal insert holes composed of circular holes and a spacer insert recessed part formed from an outer peripheral surface to an inner part and a spacer that can be inserted into the spacer insert recessed part of the connector housing main body in a direction intersecting an inserting direction of the terminal, has a temporarily engaging unit which is temporarily engaged with the housing main body under an inserted state and a mainly engaging unit which is mainly engaged with the connector housing main body, has terminal insert holes corresponding to the terminal insert holes of the connector housing main body and has a mainly terminal engaging part which permits the terminal to be inserted into the terminal insert hole at a temporarily engaged position where an insertion to the spacer insert recessed part is shallow and is mainly engaged with the terminal at a mainly engaged position where an insertion to the spacer insert recessed part is deep to prevent the terminal from moving forward and backward, in the spacer, the lance is integrally provided as a temporarily terminal engaging unit that is temporarily engaged with the terminal when the terminal is inserted into the terminal insert hole from a rear part under a state that the spacer is located at the temporarily engaged position, the mainly terminal engaging part is provided, in an inner periphery of the terminal insert hole of the spacer, as an engaging protrusion part fitted to an engaging recessed part of the terminal side at a position of a front side of the inserting direction when the spacer is inserted into the spacer insert recessed part, an engaging edge part of the engaging protrusion part is provided as an edge part substantially parallel to a direction orthogonal to the inserting direction of the spacer, the lance is arranged, in the inner periphery of the terminal insert hole of the spacer, at a position shifted from a position of a front surface opposed to the engaging protrusion part in an oblique direction seen from a central part of the terminal insert hole, a bending direction of the lance is set to a direction substantially corresponding to the oblique direction, an engaging edge part of the lance fitted to the engaging recessed part of the terminal side is provided as an edge part orthogonal to the bending direction of the lance, the terminal is formed as a round terminal having a cylindrical electric connecting part fitted and connected to a terminal of a mate connector side, in a rear part of the cylindrical electric connecting part of the round terminal, an engaging part is provided that is engaged with the lance and the engaging protrusion part and positions a rotating direction of the terminal during a process of engagement, in a further rear side, an electric wire connecting part is provided to which a terminal of a coated electric wire is connected, the engaging part of the terminal includes an engaging recessed part formed by recessing two opposed surfaces of a cylindrical periphery wall forming the electric connecting part substantially by the same dimension and a rotating direction position control part with a substantially rectangular shape in section having, as short sides, the cylindrical periphery wall remaining at a position where the engaging recessed part is formed and, as long sides, an inner bottom surface of the engaging recessed part, the engaging recessed part is provided to which the engaging edge part of the lance and the engaging edge part of the engaging protrusion part of the spacer are fitted to prevent the terminal from moving forward and backward, the rotating direction position control part is provided to apply a rotation for controlling a position in a rotating direction to the terminal by a rotation moment generated by a contact pressure when the engaging edge part of the lance and the engaging edge part of the engaging protrusion part of the spacer are pressed to come into contact therewith, and at least one end part of the engaging edge part of the engaging protrusion part of the spacer, an oblique cut-out part is provided to form an inclined surface that inclines a direction of force when the contact pressure is applied to the rotating direction position control part relative to the inserting direction of the spacer.