Molded case circuit interrupter having circuitry component situated adjacent rear exterior surface

Patent metadata

Field	Value
Publication number	US-10727012-B2
Application number	US-201816131514-A
Country	US
Kind code	B2
Filing date	Sep 14, 2018
Priority date	Sep 14, 2018
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

A molded case circuit interrupter advantageously employs a circuitry component that is situated adjacent a rear exterior surface of the molded case of the molded case circuit interrupter. Previous circuit interrupters have sometimes employed a non-conductive backsheet of a nominal thickness of 0.062 inches that was adhered to the rear surface of the molded case circuit interrupter in order to electrically isolate screws, posts, and the like that were mounted to and that were exposed on the rear portion of a molded case thereof. The disclosed and claimed concept provides a circuitry component in place of or in addition to the back sheet, with the circuitry component including flexible ribbons having electrical conductors that extend through holes formed in the molded case and that are electrically connected with electronic components that are situated within the interior of the molded case.

First claim

What is claimed is:

1. A molded case circuit interrupter comprising:
a molded case comprising a first case portion and a second case portion, the molded case having an interior region formed therein, that is situated between the first and second case portions;
an electrical apparatus situated on the molded case, the electrical apparatus comprising a set of separable electrical contacts situated within the interior region, a handle that is structured to at least initiate movement of the set of separable contacts between an OPEN condition and a CLOSED condition, and a circuitry component;
an accessory situated within the interior region and being structured to perform an operation,
the molded case having an exterior surface opposite the interior region, the exterior surface comprising a front exterior surface and a rear exterior surface that face in opposite directions away from one another, the handle being situated adjacent the front exterior surface;
the circuitry component comprising a substrate situated at an exterior of the molded case circuit interrupter adjacent the rear exterior surface and further comprising a number of electronic components situated on the substrate, the number of electronic components being structured to provide a data processing capability that is electrically communicated to the accessory; and
the substrate comprising a number of electrical conductors and a support; the number of electrical conductors being situated on the support, the support being formed of an electrically insulative material, at least some of the electronic components of the number of electronic components being electrically connected with at least some of the electrical conductors of the number of electrical conductors.

2. The molded case circuit interrupter of claim 1 wherein the substrate is affixed to the molded case.

3. The Molded case circuit interrupter of claim 2 wherein the circuitry component further comprises an amount of adhesive, at least a portion of the amount of adhesive being interposed between the substrate and the molded case and adhering the substrate to the molded case.

4. The molded case circuit interrupter of claim 1 wherein the molded case has a number of holes formed in at least one of the first ease portion and the second case portion, and wherein at least a subset of the electrical conductors of the number of electrical conductors extend through at least some of the holes of the number of holes.

5. The molded case circuit interrupter of claim 4 vherein the circuitry component further comprises a number of flexible ribbons that extend from the substrate and that comprise the at least subset, each flexible ribbon of the number of flexible ribbons having a length, a width, and a thickness, the length and width each being substantially greater than the thickness, the length being substantially greater than the width.

6. The molded case circuit interrupter of claim 1 , wherein the molded case has a number of holes foliated in at least one of the first case portion and the second case portion, and wherein the circuitry component further comprises a number of additional electrical conductors that are electrically connected with one or more electrical conductors of the number of electrical conductors and that extend through at least some of the holes of the number of holes.

7. The molded case circuit interrupter of claim 1 wherein the circuitry component further comprises a number of insulators that are formed at least in part of an electrically insulative material and that are situated at least one of on the circuitry component and adjacent the circuitry component, at least some of the insulators each overlying at least one of an electronic component of the number of electronic components and an electrical conductor of the number of electrical conductors.

8. The molded case circuit interrupter of claim 7 wherein at least a subset of the at least some of the insulators are each affixed to at least one of the at least one of the electronic component and the electrical conductor.

9. The molded case circuit interrupter of claim 8 wherein the at least subset comprises an insulator of the at least some of the insulators and an amount of adhesive, the amount of adhesive affixing the insulator to the at least one of the electronic component and the electrical conductor.

10. The molded case circuit interrupter of claim 1 wherein the first case portion is a front case portion, the front exterior surface being on the front case portion, and wherein the second case portion is a rear case portion, the rear exterior surface being on the rear case portion.

11. The molded case circuit interrupter of claim 1 wherein the circuitry component comprises a printed circuit board, the printed circuit board comprising the substrate and the number of electrical conductors.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Malingowski Richard Paul
• Miller Theodore J
• Mccarthy Kelly Julia
• Rohn David

Classifications

• H01H71/528

  comprising a toggle or collapsible link between handle and contact arm, e.g. sear pin mechanism · CPC title

• H01H71/0214

  Housing or casing lateral walls containing guiding grooves or special mounting facilities (H01H71/0221 takes precedence) · CPC title

• H01H2221/016

  Lever; Rocker · CPC title

• H01H21/04 Primary

  Cases; Covers · CPC title

• H01H9/0271

  structurally combining a switch and an electronic component (for relays H01H50/021) · CPC title