Power distribution system

Patent metadata

Field	Value
Publication number	US-10305261-B2
Application number	US-201615080686-A
Country	US
Kind code	B2
Filing date	Mar 25, 2016
Priority date	Mar 25, 2016
Publication date	May 28, 2019
Grant date	May 28, 2019

Abstract

A power distribution system includes an electrical contactor arrangement. The electrical contactor arrangement includes a first contactor post, a first contactor lead, and a second contactor lead. The first contactor post extends from a first bus bar. The first contactor lead extends from the first contactor post. The first contactor lead is at least partially received within a contactor housing. The second contactor lead is spaced apart from the first contactor lead and extends from the first contactor post. The second contactor lead is at least partially received within the contactor housing.

First claim

The invention claimed is:

1. A power distribution system, comprising:
an electrical contactor arrangement connected to a power distribution panel, the electrical contactor arrangement having:
a first contactor post extending from a first bus bar,
a first contactor lead extending from the first contactor post, the first contactor lead is at least partially received within a contactor housing,
a second contactor lead spaced apart from the first contactor lead, the second contactor lead extending from the first contactor post, the second contactor lead is at least partially received within the contactor housing,
an actuator disposed within the contactor housing,
an arm extending from the actuator,
a first movable contact coupled to the arm, the first movable contact having a first movable contact first end configured to selectively engage a first contactor lead first end,
a second movable contact spaced apart from the first movable contact, the second movable contact coupled to the arm, the second movable contact having a second movable contact first end configured to selectively engage a second contactor lead first end, and
a first insulator post disposed about the arm.

2. The power distribution system of claim 1 , wherein the electrical contactor arrangement further comprising:
a second contactor post extending from a second bus bar;
a third contactor lead extending from the second contactor post, the second contactor lead is at least partially received within the contactor housing; and
a fourth contactor lead spaced apart from the third contactor lead, the fourth contactor lead extending from the second contactor post, the fourth contactor lead is at least partially received within the contactor housing.

3. The power distribution system of claim 2 , wherein a first movable contact second end is configured to selectively engage a third contactor lead first end.

4. The power distribution system of claim 3 , wherein a second moveable contactor lead second end is configured to selectively engage a fourth contactor lead first end.

5. The power distribution system of claim 1 , wherein the first insulator post engages a first moveable contactor lead first surface.

6. The power distribution system of claim 2 , wherein the electrical contactor arrangement further comprising:
a second insulator post spaced apart from the first insulator post, the second insulator post disposed about the arm.

7. The power distribution system of claim 6 , wherein the second insulator post engages a second moveable contactor lead first surface.

8. An electrical contactor arrangement, comprising:
an actuator assembly disposed within a contactor housing, the actuator assembly including an actuator and an arm extending from the actuator, the arm having a first portion and a second portion;
a first movable contact coupled to the first portion of the arm;
a second movable contact coupled to the second portion of the arm;
a first contactor post extending from a first bus bar connected to a power distribution panel;
a first contactor lead extending from the first contactor post, the first contactor lead extending into the contactor housing and disposed proximate a first movable contact first end;
a second contactor lead extending from the first contactor post, the second contactor lead extending into the contactor housing and disposed proximate a second movable contact first end;
a second contactor post extending from a second bus bar connected to the power distribution panel;
a third contactor lead extending from the second contactor post, the second contactor lead extending into the contactor housing and disposed proximate a first movable contact second end; and
a fourth contactor lead extending from the second contactor post, the fourth contactor lead extending into the contactor housing and disposed proximate a second movable contact second end,
a first distance between the second contactor lead and the fourth contactor lead is greater than a second distance between the first movable contact and the second movable contact, while the actuator is not energized.

9. The electrical contactor arrangement of claim 8 , wherein responsive to the actuator being energized, the arm moves from an extended position towards a retracted position such that the second movable contact first end engages the second contactor lead and the second movable contact second end engages the fourth contactor lead prior to the first movable contact first end engaging the first contactor lead and the first movable contact second end engaging the third contactor lead.

10. The electrical contactor arrangement of claim 9 , wherein a biasing member urges the first movable contact first end towards the first contactor lead and the first movable contact second end towards the third contactor lead, while the arm moves from the extended position towards the retracted position.

11. The electrical contactor arrangement of claim 9 , further comprising a first insulator post disposed about the first portion and disposed proximate the first movable contact.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Pal Debabrata

Classifications

• H01H51/27

  Relays with armature having two stable magnetic states and operated by change from one state to the other · CPC title

• H01H45/04

  Mounting complete relay or separate parts of relay on a base or inside a case · CPC title

• H01H50/546

  for contactors having bridging contacts · CPC title

• H01H1/2025 Primary

  comprising two-parallel bridges · CPC title

• H01H50/14

  Terminal arrangements {(for coils H01H50/443)} · CPC title