Mobile contact-holder for cutout and cutout comprising such a mobile contact-holder

Patent metadata

Field	Value
Publication number	US-11710607-B2
Application number	US-202117512976-A
Country	US
Kind code	B2
Filing date	Oct 28, 2021
Priority date	Nov 3, 2020
Publication date	Jul 25, 2023
Grant date	Jul 25, 2023

Abstract

A mobile contact-holder for a cutout includes a support in which there is formed a housing, a mobile element made of electrically conductive material mounted to slide, in a longitudinal axis of the support, in the housing of the support, an upstream electrical contact pad and a downstream electrical contact pad borne by the mobile element and a spring which exerts a return force on the mobile element. The support includes two oblong holes emerging in the housing and extending along its longitudinal axis. The mobile contact-holder also includes a guiding shaft which is fixed in translation with respect to the mobile element, which extends along an axis parallel to a transverse axis of the support and which is engaged in the oblong holes of the support. The guiding shaft engaged in the oblong holes guides the translation of the mobile element in the housing.

First claim

The invention claimed is:

1. A mobile contact-holder for a cutout comprising:
a support in which there is formed a housing;
a mobile element made of electrically conductive material mounted to slide, on a longitudinal axis of the support, in the housing of the support;
an upstream electrical contact pad and a downstream electrical contact pad borne by the mobile element; and
a spring exerting a return force on the mobile element,

wherein:
the support further comprises two oblong holes emerging in the housing and extending along a longitudinal axis of the housing;
the mobile contact-holder also comprises a guiding shaft which is fixed in translation with respect to the mobile element, and which extends along an axis parallel to a transverse axis of the support and which is engaged in the oblong holes of the support; and
the guiding shaft engaged in the oblong holes guides translation of the mobile element in the housing,

wherein the mobile element is mobile in rotation, with respect to the support, about a main axis of the guiding shaft, and
wherein:
the mobile contact-holder comprises a clevis positioned in an internal volume of the mobile element, the guiding shaft being positioned through openings of the clevis and the clevis being equipped with means for retaining an end of the spring;
the mobile contact-holder comprises a balancing leaf positioned between the clevis and the mobile element and inserted between the guiding shaft and the mobile element, the balancing leaf being mobile in rotation about the main axis and the guiding shaft; and
the rotation of the balancing leaf about the main axis of the guiding shaft allows the rotation of the mobile element about the main axis of the guiding shaft.

2. The mobile contact-holder according to claim 1 , wherein the mobile element is kept assembled on the support by the guiding shaft and by two slip surfaces of the mobile element in contact with two lateral faces of the housing of the support.

3. The mobile contact-holder according to claim 1 , wherein:
the mobile element comprises two lateral walls and a contact wall defining the internal volume of the mobile element, each lateral wall comprising a notch in which the guiding shaft is mounted;
the balancing leaf bears on the one hand at its ends against the contact wall of the mobile element and, on the other hand, at its centre against the guiding shaft; and
the bearing pressure of the two ends of the balancing leaf on the contact wall of the mobile element is balanced.

4. The mobile contact-holder according to claim 1 , wherein the guiding shaft is produced in a thermosetting polymer material and wherein the support is produced in a thermosetting polymer material.

5. A cutout intended to be inserted into an electrical circuit and comprising:
a casing;
a fixed upstream electrical contact pad and a fixed downstream electrical contact pad, fixed in the casing; and
the mobile contact-holder according to claim 1 ,

the mobile contact-holder being mobile in the casing between a position of closure of the electrical circuit in which the upstream contact pad of the mobile element is bearing against the fixed upstream contact pad, wherein the downstream contact pad of the mobile element is bearing against the fixed downstream contact pad and wherein the spring exerts a contact pressure between the electrical contact pads of the mobile contact-holder and the electrical contacts of the casing and a position of opening of the electrical circuit in which the electrical contact pads of the mobile element are separated from the fixed electrical contact pads.

6. The cutout according to claim 5 , wherein the casing comprises two oblong housings for guiding the guiding shaft.

7. The cutout according to claim 6 , wherein the support of the mobile contact-holder masks the housings of the casing.

8. The cutout according to claim 5 , wherein guiding zones of the mobile element with respect to the support are formed outside of the housing of the mobile contact-holder and/or wherein guiding zones of the mobile contact-holder with respect to the casing are formed outside of the mobile contact-holder.

9. The cutout according to claim 5 , wherein the mobile element is mobile in rotation about the main axis of the guiding shaft and wherein, in position of closure of the electrical circuit, the contact pressure of the upstream electrical contact pad of the mobile contact-holder on the fixed upstream electrical contact pad, on the one hand, and the contact pressure of the downstream electrical contact pad on the fixed downstream electrical contact pad, on the other hand, are balanced by the rotation of the mobile element about the guiding shaft.

10. A mobile contact-holder for a cutout comprising:
a support in which there is formed a housing;
a mobile element made of electrically conductive material mounted to slide, on a longitudinal axis of the support, in the housing of the support;
an upstream electrical contact pad and a downstream electrical contact pad borne by the mobile element; and
a spring exerting a return force on the mobile element,

wherein:
the support further comprises two oblong holes emerging in the housing and extending along a longitudinal axis of the housing;
the mobile contact-holder also comprises a guiding shaft which is fixed in translation with respect to the mobile element, and which extends along an axis parallel to a transverse axis of the support and which is engaged in the oblong holes of the support; and
the guiding shaft engaged in the oblong holes guides translation of the mobile element in the housing,
wherein the guiding shaft is produced in a thermosetting polymer material and wherein the support is produced in a thermosetting polymer material.

11. The mobile contact-holder according to claim 10 , wherein the mobile element is kept assembled on the support by the guiding shaft and by two slip surfaces of the mobile element in contact with two lateral faces of the housing of the support.

12. The mobile contact-holder according to claim 10 , wherein the mobile element is mobile in rotation, with respect to the support, about a main axis of the guiding shaft.

13. The mobile contact-holder according to claim 12 , wherein:
the mobile contact-holder comprises a clevis positioned in an internal volume of the mobile element, the guiding shaft being positioned through openings of the clevis and the clevis being equipped with means for retaining an end of the spring;
the mobile contact-holder comprises a balancing leaf positioned between the clevis and the mobile element and inserted between the guiding shaft and the mobile element, the balancing leaf being mobile in rotation about the main axis and the guiding shaft; and
the rotation of the balancing leaf about the main axis of the guiding shaft allows the rotation of the mobile element about the main axis of the guiding shaft.

14. The mobile contact-holder according to claim 13 , wherein:
the mobile element comprises two lateral walls and a contact wall defining the internal volume of the mobile element, each lateral wall comprising a notch in which the guiding shaft is mounted;
the balancing leaf bears on the one hand at its ends against the contact wall of the mobile element and, on the other hand, at its centre against the guiding shaft; and
the bearing pressure of the two ends of the balancing leaf on the contact wall of the mobile element is balanced.

15. A cutout intended to be inserted into an electrical circuit and comprising:
a casing;
a fixed upstream electrical contact pad and a f

Assignees

• Schneider Electric Ind Sas

Inventors

• Larcher Patrick

Classifications

• H01H1/24 Primary

  with resilient mounting · CPC title

• H01H1/221

  and a contact pressure spring acting between the pivoted member and a supporting member · CPC title

• H01H1/365

  Bridging contacts · CPC title

• H01H50/56

  Contact spring sets · CPC title

• H01H71/02 Primary

  Housings; Casings; Bases; Mountings · CPC title