US 11,691,533 B2Granted

Jig for connector current evaluation

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsHisato Kawahara, Hiroaki Yuasa, Hidetoshi Kusumi, Kyoko Inayoshi

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Abstract

An evaluation jig comprises a female terminal connectable to a male terminal of a charging connector. The female terminal includes a plurality of contact pieces and a support portion. Each contact piece has a flexible piece, and a contact portion protruding toward the center axis from an inner surface of the flexible piece. The flexible piece forms a portion of a cylinder having the center axis. The flexible piece has a length equal to or larger than twice an outer diameter of the cylinder in a direction parallel to the center axis. The flexible piece is elastically deformable so that the flexible piece has a distal end portion to be displaceable in a radial direction of the cylinder relative to a proximal end portion of the flexible piece. The contact portion has a shape curved so as to protrude inward in the radial direction.

Claims7

Dependent claims

A reference jig comprising

a reference terminal connectable to a male terminal of a connector, the reference terminal including
a plurality of pieces, each of which has a shape that is spaced about a center axis and extends along the center axis, and
a plurality of convex portions each protruding toward the center axis from an inner surface of one of the plurality of pieces,
each piece of the plurality of the pieces having an outer peripheral surface composed of an arc surface centered on the center axis,
the piece having a length four times or more a radius of curvature of the arc surface in a direction parallel to the center axis,
the convex portion having a shape curved so as to protrude inward in a radial direction of the outer peripheral surface of the piece,
the convex portion including
an inner edge with a shape extending along the direction parallel to the center axis, and
a connecting portion connecting the inner edge to the inner surface of the piece,
the connecting portion having a shape that is inclined so as to gradually approach the inner surface of the piece as it is separated from the inner edge in the direction parallel to the center axis.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/728,171Filed 25 Apr 2022 · continuation
Priority: JP 2020-00314110 Jan 2020
Published: US 2022/0242266 A14 Aug 2022
Granted: 4 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B60L 53/62
Monitoring or controlling charging stations: in response to charging parameters, e.g. current, voltage or electrical charge
B60L 53/16
Conductive energy transfer: connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
H01R 13/111
Resilient sockets: co-operating with pins having a circular transverse section
G01R 27/205
Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates: measuring contact resistance of connections,…

Family

Application17/117,836Parent of this continuation · filed 10 Dec 2020
US 2022/0242266 A1Pre-grant publication · published 4 Aug 2022
US 11,338,696 B2Parent of this continuation
US 2021/0213845 A1Published application
US 11,691,533 B2This patent

From the US filing history. Foreign family members aren’t listed.