CABLE HARNESS FOR A SENSOR

• US 20130031976A1
• Filed: 08/01/2011
• Published: 02/07/2013
• Est. Priority Date: 08/01/2011
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Eckhardt, Todd, Machir, Jim, Thanigachalam, Palani, Kashyap, Pavan R.
• Granted Patent: US 8,671,753 B2
• Time in Patent Office: Days
• US Class Current: 73/431
• CPC Class Codes: G01D 11/245 Housings for sensors
• CPC Class Codes: H01R 13/5216 characterised by the sealing material, e.g. gels or resins
• CPC Class Codes: H01R 13/5808 formed by a metallic element crimped around the cable H01R4/185 takes precedence
• CPC Class Codes: Y10T 29/49176 with molding of electrically insulating material

Abstract

The present disclosure relates to sensors including pressure sensors, humidity sensors, flow sensors, etc. In some cases, a cable harness assembly for connection with a sensor assembly may include a cable cover having a first end and a second end, a cable extending through an opening in the first end of the of the cable cover, and a crimp ring configured to engage the cable at a position within the cable cover, such that the attached crimp ring may not fit through the opening. The second end of the cable cover may be configured to connect to a housing of an electrical connector. Further, the cable may have wires that may be configured to electrically connect to electrical terminals of the electrical connector. In some instances, the electrical connector may be electrically connected to a sensor.

Claims

1. A cable harness for a sensor, comprising:

a cable having a first end and an opposing second end, with one or more wires extending between the first end and the second end;

an electrical connector including;

an electrical connector housing having a first end and a second end;

one or more electrical terminals facing the first end of the electrical connector housing and one or more electrical terminals facing the second end of the electrical connector housing;

a cable cover having a first end and an opposing second end, with a wall defining a cavity that extends from the second end of the cable cover toward the first end but not all the way to the first end, the cable cover further having a cable receiving opening that extends from the first end of the cable cover and into the cavity;

the first end of the cable extending though the cable receiving opening in the cable cover, with a first end of the one or more wires of the cable being electrically connected to one or more of the electrical terminals of the electrical connector that are facing the second end of the electrical connector;

the second end of the cable cover secured to the second end of the electrical connector housing;

a crimp ring secured to the cable a distance from the first end of the cable, the crimp ring positioned within the cavity of the cable cover and sized so as to not fit through the cable receiving opening of the cable cover; and

a potting material filling or substantially filling the cavity of the cable cover.

2. The cable harness of claim 1, wherein the cable cover further includes one or more ribs inside the cavity adjacent to the cable receiving opening, and wherein the crimp ring engages at least one of the ribs inside the cavity of the cable cover to help prevent the cable from being rotated relative to the cable cover.

3. The cable harness of claim 1 further comprising a printed circuit board, wherein the first end of one or more of the wires of the cable are electrically connected to the printed circuit board, and the printed circuit board is electrically connected to one or more of the electrical terminals of the electrical connector that are facing the second end of the electrical connector.

4. The cable harness of claim 3, wherein one or more of the electrical terminals of the electrical connector that are facing the second end of the electrical connector include one or more compliant pins that are inserted molded into the electrical connector housing, and wherein the one or more compliant pins are configured to be inserted through corresponding holes in the printed circuit board to form an electrical connection with the printed circuit board.

5. The cable harness of claim 1, wherein the second end of the cable cover is secured to the second end of the electrical connector housing by welding.

6. The cable harness of claim 1, wherein the second end of the cable cover is secured to the second end of the electrical connector housing by an adhesive.

7. The cable harness of claim 1, wherein the cable cover is plastic.

8. The cable harness of claim 1, wherein the electrical connector housing is plastic.

9. The cable harness of claim 1, wherein the cable includes a cable sleeve that extend around the one or more wires of the cable for at least a majority of the length of the cable, the cable sleeve extending though the cable receiving opening of the cable cover and is secured to the one or more wires of the cable by the crimp ring.

10. The cable harness of claim 1, wherein the cable cover further includes one or more potting holes that extend into the cavity for allowing the potting material to fill or substantially fill the cavity of the cable cover after the second end of the cable cover is secured to the second end of the electrical connector.

11. The cable harness of claim 10, wherein the potting material is a liquid material that hardens after it is provided into the cavity through the one or more potting holes.

12. The cable harness of claim 1, wherein the second end of the cable cover overlaps with the second end of the electrical connector housing.

13. A sensor, comprising:

a cable having a first end and an opposing second end, with one or more wires extending between the first end and the second end;

an electrical connector including;

an electrical connector housing having a cable interface and a sensor interface;

one or more electrical terminals facing the sensor interface of the electrical connector housing, and one or more compliant pins facing the cable interface of the electrical connector housing, the one or more compliant pins being inserted molded in the electrical connector housing;

a cable cover having a first end and an opposing second end, with a wall defining a cavity that extends from the second end of the cable cover toward the first end but not all the way to the first end, the cable cover further having a cable receiving opening that extends from the first end of the cable cover and into the cavity;

the second end of the cable cover is secured to the cable interface of the electrical connector housing;

a crimp ring secured to the cable a distance from the first end of the cable, the crimp ring positioned within the cavity of the cable cover and sized so as to not fit through the cable receiving opening of the cable cover;

a printed circuit board, wherein the first end of the cable extends though the cable receiving opening in the cable cover, with a first end of one or more of the wires of the cable electrically connected to the printed circuit board, and the printed circuit board is electrically connected to the one or more compliant pins of the electrical connector, with the one or more compliant pins inserted through corresponding conductive holes in the printed circuit board to form an electrical connection; and

a sensor secured to the sensor interface of the electrical connector housing and electrically connected to one or more of the electrical terminals facing the sensor interface of the electrical connector.

14. The sensor of claim 13 further comprising a potting filling or substantially filling the cavity of the cable cover.

15. The sensor of claim 13, wherein the cable cover further includes one or more ribs inside the cavity adjacent to the cable receiving opening, and wherein the crimp ring engages at least one of the ribs inside the cavity of the cable cover to help prevent the cable from being rotated relative to the cable cover.

16. The sensor of claim 13, wherein the sensor is a pressure sensor.

17. The sensor of claim 13, wherein the second end of the cable cover is secured to the cable interface of the electrical connector housing by welding.

18. The sensor of claim 13, wherein the second end of the cable cover is secured to the cable interface of the electrical connector housing by an adhesive.

19. The sensor of claim 13, wherein the cable cover and the electrical connector housing are both made from plastic.

20. A method for forming a cable harness for a sensor, comprising:

inserting a first end of a cable through a cable receiving opening in a cable cover, wherein the cable cover has a first end and an opposing second end, with a wall defining a cavity that extends from the second end of the cable cover toward the first end but not all the way to the first end, the cable receiving opening extends from the first end of the cable cover and into the cavity;

securing a crimp ring a distance from the first end of the cable, wherein the crimp ring is sized so as to fit within the cavity of the cable cover but not fit through the cable receiving opening of the cable cover;

electrically connecting a first end of cable to one or more electrical terminals of an electrical connector;

securing the second end of the cable cover to the electrical connector; and

filling or substantially filling the cavity of the cable cover with a non-conductive potting material.