Electrical enclosure

• US 10,008,352 B2
• Filed: 08/15/2016
• Issued: 06/26/2018
• Est. Priority Date: 03/10/2011
• Status: Active Grant

• Current Assignee: The Ericson Manufacturing Company
• Original Assignee: The Ericson Manufacturing Company
• Inventors: Hughes, Ron
• Primary Examiner(s): Haughton, Anthony
• Assistant Examiner(s): Gafur, Razmeen
• Application Number:
  US15/236,606
• Publication Number:
  US 20170040135A1
• Time in Patent Office: 680 Days
• Field of Search: 36167901-67945, 36167955-67961, 361676-678, 36167946-67954, 361688-723, 361724-727, 165 801- 805, 16510433, 165185, 174 151- 153, 174 161- 163, 174547, 174548, 257712-722, 257E23088, 24453, 24458-459, 454184, 312236
• CPC Class Codes: H01H 2011/0037 with removable or replaceable terminal blocks
• CPC Class Codes: H01H 71/0264 Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
• CPC Class Codes: H01H 9/04 Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
• CPC Class Codes: H01R 13/533 Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure H01R13/52 takes precedence
• CPC Class Codes: H01R 4/363 with intermediate part between tip and conductive member
• CPC Class Codes: H01R 4/48 utilising a spring, clip, or other resilient member H01R4/52 takes precedence
• CPC Class Codes: H02B 1/056 Mounting on plugboards
• CPC Class Codes: H02B 1/28 dustproof, splashproof, drip-proof, waterproof or flameproof
• CPC Class Codes: H05K 5/0004 comprising several parts forming a closed casing

Abstract

A sealed electrical enclosure for housing an electrical component is provided. In one exemplary embodiment, the sealed electrical enclosure includes a housing, a first and second electrical connector, an actuator, and a terminal. The housing has a sealed interior when a top portion is coupled to a bottom portion. The first electrical connector extends from the sealed interior through the bottom of the housing and is electrically coupled to the electrical component. The actuator extends from the sealed interior through the housing and is configured to manipulate the electrical component. The terminal is electrically coupled to the second electrical connector. The second electrical connector is configured to mate with the first electrical connector. The first and second electrical connectors are configured to be connected and disconnected to attach and remove the housing to and from the terminal.

Claims

1. A sealed electrical enclosure for housing a circuit breaker, comprising:

a housing having a top portion removably coupled to a bottom portion, the bottom portion having a plurality of sidewalls extending from a bottom, the housing having a sealed interior when the top portion is coupled to the bottom portion;

an electrical connector extending from the sealed interior through the bottom of the housing, the electrical connector being electrically coupled to a circuit breaker housed within the electrical enclosure and forming a first seal with the bottom of the housing;

an actuator extending from the sealed interior through the housing, the actuator configured to manipulate the circuit breaker and forming a second seal with the housing;

a terminal having a first end and a second end, the first end configured for attachment of a wire and the second end configured for attachment to the electrical connector, the terminal and the electrical connector forming an electrical connection between the wire and the circuit breaker; and

a vent in the bottom of the housing, the vent configured to permit heat and pressure to escape the sealed interior of the housing;

wherein the terminal is configured to extend outward from underneath the bottom of the housing and past a sidewall of the housing such that the first end of the terminal is accessible for attachment of the wire, and wherein the terminal is configured such that an outer surface of the second end contacts an exposed end of the electrical connector below at least a portion of the bottom of the housing, and wherein the terminal is removably coupled to the electrical connector.

2. The sealed electrical enclosure of claim 1, wherein the terminal is configured such that the first end is positioned adjacent to a sidewall of the bottom portion for attachment of the wire.

3. The sealed electrical enclosure of claim 1, wherein the exposed end of the electrical connector is flush with a bottom surface of the bottom.

4. The sealed electrical enclosure of claim 1, wherein the terminal includes a first portion that extends substantially parallel to the bottom of the housing and a second portion that extends substantially parallel to a sidewall of the housing.

5. The sealed electrical enclosure of claim 4, wherein the terminal is configured to be received in a recess of the bottom portion of the housing.

6. The sealed electrical enclosure of claim 5 further comprising a terminal block having a cavity configured to receive the terminal, the cavity having a plurality of sidewalls that protect the terminal and the electrical connection between the terminal and the electrical connector.

7. The sealed electrical enclosure of claim 1, wherein the second end of the terminal is removably coupled to the electrical connector with a fastener.

8. The sealed electrical enclosure of claim 1, wherein at least the bottom portion of the housing is molded plastic, and wherein the first seal is formed by molding the bottom portion of the housing around the electrical connector.

9. The sealed electrical enclosure of claim 1, wherein the terminal is mounted to a panel, and wherein the electrical connector and the terminal are configured to provide at least about 1 inch of clearance between the panel and the vent when the housing is mounted to the terminal such that the heat and pressure can escape the sealed interior of the housing.

10. A sealed electrical enclosure for housing a circuit breaker, comprising:

a housing have a top portion removably coupled to a bottom portion, the bottom portion made of molded plastic and having a plurality of sidewalls extending from a bottom, the housing having a sealed interior when the top portion is coupled to the bottom portion;

a first electrical connector extending from the sealed interior through the bottom of the housing, the first electrical connector being electrically coupled to a circuit breaker housed within the electrical enclosure and forming a first seal with the bottom of the housing, the first seal formed by molding the bottom portion of the housing around the first electrical connector;

an actuator extending from the sealed interior through the housing, the actuator configured to manipulate the circuit breaker and forming a second seal with the housing;

a terminal for attachment of a wire, the terminal being electrically coupled to a second electrical connector, the second electrical connector integrally formed with at least a portion of the terminal and configured to mate with the first electrical connector to form an electrical connection between the wire and the circuit breaker; and

a vent in the bottom of the housing, the vent configured to permit heat and pressure to escape the sealed interior of the housing;

wherein;

the first electrical connector is frictionally connected to the second electrical connector to attach the housing to the terminal;

the first and second electrical connectors are configured to be connected and disconnected to attach and remove the housing to and from the terminal without removing the wire from the terminal; and

the first electrical connector is configured to be disconnected from the second electrical connector by pulling the bottom portion of the housing in a direction away from the terminal.