Contactor body with integral heat sink

Patent metadata

Field	Value
Publication number	US-9613764-B1
Application number	US-201514855875-A
Country	US
Kind code	B1
Filing date	Sep 16, 2015
Priority date	Sep 16, 2015
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

An electrical contactor assembly is provided including an electrical contactor positioned within a contactor housing, an electrical bus bar, and a post constructed from an electrically and thermally conductive material connected to the bus bar. At least one lead is coupled to the electrical contact and to the post. The at least one lead has a first portion oriented about a first plane and a second portion extending from the first portion and being oriented about a second plane. The second plane is arranged at an angle to the first plane such that one or more surface of the at least one lead are configured to transmit heat to the contactor housing.

First claim

The invention claimed is:

1. An electrical contactor assembly comprising:
an electrical contactor positioned within a contactor housing;
an electrical bus bar;
a post constructed from an electrically and thermally conductive material and connected to the electrical bus bar; and
at least one lead coupled to the electrical contactor and the post, the at least one lead having a contiguous first portion oriented about a first plane, the first portion having a first end and a second end, the first end coupled to the electrical contactor, the second end coupled to the post, and a second portion extending from the first portion between the first end and the second end and being oriented about a second plane, the second plane being arranged at an angle to the first such that one or more surfaces of the at least one lead are configured to transmit heat to the contactor housing.

2. The electrical contactor assembly according to claim 1 , wherein the first portion is oriented about a horizontal plane and the second portion is oriented about a vertical plane.

3. The electrical contactor assembly according to claim 1 , wherein an insulative material is positioned between the lead and the contactor housing.

4. The electrical contactor assembly according to claim 1 , further comprising at least one cooling fin mounted to a portion of the contactor housing.

5. The electrical contactor assembly according to claim 4 , wherein the at least one cooling fin is mounted to the portion of the contactor housing adjacent the at least one lead.

6. The electrical contactor assembly according to claim 4 , wherein the at least one cooling fin is mounted to the contactor housing.

7. The electrical contactor assembly according to claim 4 , wherein the at least one cooling fin is integrally formed with the contactor housing.

8. The electrical contactor assembly according to claim 1 , wherein the contactor housing includes a top portion and bottom portion, the second portion of the at least one lead being arranged in contact with a surface of the top portion.

9. The electrical contactor assembly according to claim 8 , wherein the lead further comprises a third portion configured to couple to another surface of the contactor housing.

10. The electrical contactor assembly according to claim 9 , wherein the third portion of the at least one lead is arranged in contact with another surface of the top portion.

11. A lead configured for use in a contactor assembly, comprising:
a body including a contiguous first portion, the first portion having a first end and a second end, the first end configured to couple to a contactor, the second end configured to couple to a bus bar, and a second portion configured to connect to a surface of a contactor housing, the second portion extending at an angle to the first portion and disposed between the first end and the second end.

12. The lead according to claim 11 , wherein the first portion is oriented generally horizontally and the second portion is oriented generally vertically.

13. The lead according to claim 11 , wherein only heat is configured to transfer from the second portion to the contact housing.

14. The lead according to claim 11 , further comprising
a third portion configured to couple to another surface of the contactor housing.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Pal Debabrata

Classifications

• H01H1/62 Primary

  Heating or cooling of contacts · CPC title

• H01H50/12 Primary

  Ventilating; Cooling; Heating (for operating electrothermal relays H01H61/013) · CPC title

• H01H51/00

  Electromagnetic relays (relays using the dynamo-electric effect H01H53/00) · CPC title

• H01H50/546

  for contactors having bridging contacts · CPC title

• H01H51/065

  Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles (details H01H50/20) · CPC title