Insulating support for electric device

Patent metadata

Field	Value
Publication number	US-9941035-B2
Application number	US-201415301571-A
Country	US
Kind code	B2
Filing date	Apr 4, 2014
Priority date	Apr 4, 2014
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

An insulating support includes a pillar-shaped portion made of resin, a metal insert buried in one end surface of the pillar-shaped portion in an axial direction, a metal insert buried in the other end surface of the pillar-shaped portion in the axial direction, and one protrusion made of the resin and provided in a ring shape and integrally with the pillar-shaped portion on an outer circumferential surface of the pillar-shaped portion on a side of the metal insert. The metal insert includes a first cylindrical base portion and a first distal end portion. The metal insert includes a second cylindrical base portion and a second distal end portion. A whole of the first distal end portion is disposed within an extended range of the protrusion in the axial direction.

First claim

The invention claimed is:

1. An insulating support for an electric device, the insulating support insulating and supporting a main electric device body from below, the insulating support comprising:
a pillar-shaped portion made of resin;
a first metal insert buried in one end surface of the pillar-shaped portion in an axial direction;
a second metal insert buried in the other end surface of the pillar-shaped portion in the axial direction; and
one protrusion made of the resin and provided in a ring shape and integrally with the pillar-shaped portion on an outer circumferential surface of the pillar-shaped portion on a side of the first metal insert,
wherein the first metal insert includes a first cylindrical base portion fixed to a mounting surface and a first distal end portion integrally provided at a distal end of the first base portion, the first distal end portion having an external surface including a convexly and smoothly curved surface,
wherein the second metal insert includes a second cylindrical base portion fixed to the main electric device body and a second distal end portion integrally provided at a distal end of the second base portion, the second distal end portion having an external surface including a convexly and smoothly curved surface, and
wherein a whole of the first distal end portion is disposed within an extended range of the protrusion in the axial direction.

2. The insulating support for the electric device according to claim 1 , wherein a distal end position of the protrusion is disposed within an extended range of the first distal end portion in the axial direction.

3. The insulating support for the electric device according to claim 2 , wherein
a plurality of the first metal inserts and a plurality of the second metal inserts are provided,
each of the plurality of first metal inserts includes the first base portion and the first distal end portion,
each of the plurality of second metal inserts includes the second base portion and the second distal end portion,
a whole of each of the first distal end portions is disposed within the extended range of the protrusion in the axial direction, and
the distal end position of the protrusion is disposed within an extended range of each of the first distal end portions in the axial direction.

4. The insulating support for the electric device according to claim 1 , wherein only the protrusion is provided as a fold on the outer circumferential surface of the pillar-shaped portion.

5. The insulating support for the electric device according to claim 1 , wherein the pillar-shaped portion has a cylindrical shape or a truncated cone shape.

6. The insulating support for the electric device according to claim 1 , wherein each of the first distal end portion and the second distal end portion has a hemispherical shape.

7. The insulating support for the electric device according to claim 1 , wherein the electric device is an electric power switch device.

8. The insulating support for the electric device according to claim 1 , comprising
another protrusion made of the resin and provided in a ring shape and integrally with the pillar-shaped portion on the outer circumferential surface of the pillar-shaped portion on a side of the second metal insert,
wherein a whole of the second distal end portion is disposed within an extended range of the other protrusion in the axial direction.

9. The insulating support for the electric device according to claim 8 , wherein a distal end position of the other protrusion is disposed within an extended range of the second distal end portion in the axial direction.

10. The insulating support for the electric device according to claim 9 , wherein
a plurality of the first metal inserts and a plurality of the second metal inserts are provided,
each of the plurality of first metal inserts includes the first base portion and the first distal end portion,
each of the plurality of second metal inserts includes the second base portion and the second distal end portion,
a whole of each of the first distal end portions is disposed within the extended range of the protrusion in the axial direction,
a whole of each of the second distal end portions is disposed within the extended range of the other protrusion in the axial direction,
the distal end position of the protrusion is disposed within an extended range of each of the first distal end portions in the axial direction, and
the distal end position of the other protrusion is disposed within an extended range of each of the second distal end portions in the axial direction.

11. The insulating support for the electric device according to claim 8 , wherein only the protrusion and the other protrusion are provided as folds on the outer circumferential surface of the pillar-shaped portion.

12. The insulating support for the electric device according to claim 8 , wherein each of the first distal end portion and the second distal end portion has a hemispherical shape.

13. The insulating support for the electric device according to claim 8 , wherein the pillar-shaped portion has a cylindrical shape or a truncated cone shape.

14. The insulating support for the electric device according to claim 8 , wherein the electric device is an electric power switch device.

Assignees

• Mitsubishi Electric Corp

Inventors

• Otani Hirokazu
• Kaneda Koichi
• Yoshitomo Yuji
• Yoshida Daisuke

Classifications

• H01B17/16

  Fastening of insulators to support, to conductor, or to adjoining insulator · CPC title

• H01B17/14 Primary

  Supporting insulators (pin insulators H01B17/20; apertured insulators H01B17/24) · CPC title

• H02B1/011

  Open support bases · CPC title

• H01B17/56

  Insulating bodies · CPC title

• H01B17/00

  Insulators or insulating bodies characterised by their form · CPC title