Electrical cable and connector with internal temperature-sensing mechanism

• US 10,124,749 B2
• Filed: 10/02/2017
• Issued: 11/13/2018
• Est. Priority Date: 10/17/2016
• Status: Active Grant

• Current Assignee: MD Elektronik GmbH (Dr. Johannes Heidenhain GmbH)
• Original Assignee: MD Elektronik GmbH (Dr. Johannes Heidenhain GmbH)
• Inventors: Haas, Alexander, Mirz, Sebastian, Ohni, Josef, Preis, Roland, Geltinger, Simon
• Primary Examiner(s): Patel, Tulsidas C
• Assistant Examiner(s): Leigh, Peter G
• Application Number:
  US15/721,981
• Publication Number:
  US 20180105124A1
• Time in Patent Office: 407 Days
• Field of Search: 439606, 439913
• CPC Class Codes: B29C 45/561 Injection-compression moulding
• CPC Class Codes: B60R 16/0215 Protecting, fastening and routing means therefor
• CPC Class Codes: F16D 2066/001 Temperature
• CPC Class Codes: H01R 13/504 different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
• CPC Class Codes: H01R 13/5205 Sealing means between cable and housing, e.g. grommet H01R13/5221 takes precedence
• 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 13/6616 with resistor
• CPC Class Codes: H01R 13/6683 with built-in sensor
• CPC Class Codes: H01R 2201/26 for vehicles
• CPC Class Codes: H01R 43/24 Assembling by moulding on contact members

Abstract

A cable includes a lead having at least one wire, and a connector having at least one contact and a liquid-tight dielectric housing. The at least one contact is electrically connected to the at least one wire such that an electric current is conductible from the at least one wire into the at least one contact. A temperature-sensitive measuring resistor is contained in the housing and is electrically connected to the at least one wire such that at least a portion of the electrical current that is conductible into the at least one contact flows through the measuring resistor. A metallic element is disposed on the housing and thermally connected to the measuring resistor.

Claims

1. A cable comprising:

a lead having at least one wire;

a connector having at least one contact and a liquid-tight dielectric housing, the at least one contact being electrically connected to the at least one wire such that an electric current is conductible from the at least one wire into the at least one contact;

a temperature-sensitive measuring resistor which is contained in the housing and is electrically connected to the at least one wire such that at least a portion of the electrical current that is conductible into the at least one contact flows through the measuring resistor; and

a metallic element disposed on the housing and thermally connected to the measuring resistor, wherein the metallic element extends through the housing.

2. The cable as recited in claim 1, wherein the housing includes a projection on which the metallic element is disposed and within which the measuring resistor is disposed.

3. The cable as recited in claim 1, wherein the metallic element is configured to attach the connector to another component.

4. The cable as recited in claim 3, wherein the metallic element is configured as a sleeve or grommet.

5. The cable as recited in claim 1, wherein the metallic element is thermally connected to the measuring resistor via a sheet-metal part.

6. The cable as recited in claim 5, wherein the sheet-metal part is disposed and resiliently preloaded between the metallic element and the measuring resistor.

7. The cable as recited in claim 5, wherein the sheet-metal part is disposed in the housing.

8. The cable as recited in claim 1, wherein the measuring resistor is electrically connected to the at least one wire such that the electrical current that is conductible into the at least one contact flows entirely through the measuring resistor.

9. The cable as recited in claim 8, wherein the at least one wire is severed such that the at least one wire has two ends, and wherein the measuring resistor is electrically contacted to the respective two ends of the at least one wire.

10. The cable as recited in claim 1, wherein the housing is manufactured using an overmolding process such that the measuring resistor is overmolded.

11. The cable as recited in claim 1, wherein the cable has a contact holder to which the at least one contact is secured and which is surrounded by the housing.

12. The cable as recited in claim 10, wherein the housing is manufactured using an overmolding process such that the contact holder is overmolded.

13. The cable as recited in claim 1, wherein the housing is manufactured using an overmolding process, and wherein the metallic element is overmolded.

14. The cable as recited in claim 1, wherein the housing is manufactured using an overmolding process, and wherein the lead has a jacket that is overmolded over a portion of a length of the jacket.

15. A cable comprising:

a lead having at least one wire;

a connector having at least one contact and a liquid-tight dielectric housing, the at least one contact being electrically connected to the at least one wire such that an electric current is conductible from the at least one wire into the at least one contact;

a temperature-sensitive measuring resistor which is contained in the housing and is electrically connected to the at least one wire such that at least a portion of the electrical current that is conductible into the at least one contact flows through the measuring resistor; and

a metallic element disposed on the housing and thermally connected to the measuring resistor, wherein the metallic element is configured to attach the connector to another component.

16. The cable as recited in claim 15, wherein the metallic element is configured as a sleeve or grommet.

17. A cable comprising:

a lead having at least one wire;

a connector having at least one contact and a liquid-tight dielectric housing, the at least one contact being electrically connected to the at least one wire such that an electric current is conductible from the at least one wire into the at least one contact;

a temperature-sensitive measuring resistor which is contained in the housing and is electrically connected to the at least one wire such that at least a portion of the electrical current that is conductible into the at least one contact flows through the measuring resistor; and

a metallic element disposed on the housing and thermally connected to the measuring resistor, wherein the metallic element is thermally connected to the measuring resistor via a sheet-metal part.

18. The cable as recited in claim 17, wherein the sheet-metal part is disposed in the housing and resiliently preloaded between the metallic element and the measuring resistor.

19. A cable comprising:

a lead having at least one wire;

a connector having at least one contact and a liquid-tight dielectric housing, the at least one contact being electrically connected to the at least one wire such that an electric current is conductible from the at least one wire into the at least one contact;

a temperature-sensitive measuring resistor which is contained in the housing and is electrically connected to the at least one wire such that at least a portion of the electrical current that is conductible into the at least one contact flows through the measuring resistor; and

a metallic element disposed on the housing and thermally connected to the measuring resistor,

wherein the measuring resistor is electrically connected to the at least one wire such that the electrical current that is conductible into the at least one contact flows entirely through the measuring resistor.

20. The cable as recited in claim 19, wherein the at least one wire is severed such that the at least one wire has two ends, and wherein the measuring resistor is electrically contacted to the respective two ends of the at least one wire.