Motor vehicle windscreen wiper windscreen washer liquid distribution system

Patent metadata

Field	Value
Publication number	US-9809202-B2
Application number	US-201414212463-A
Country	US
Kind code	B2
Filing date	Mar 14, 2014
Priority date	Mar 14, 2013
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

A motor vehicle windscreen wiper windscreen washer liquid distribution system including a windscreen washer liquid distribution network is disclosed. The windscreen washer liquid distribution network includes at least one hydraulic pipe including at least one windscreen washer liquid circulation passage, at least one hydraulic connector connected to the circulation passage, and at least one thermally conductive member in thermal contact with the at least one hydraulic connector and with a heating element of the distribution system.

First claim

The invention claimed is:

1. A motor vehicle windscreen wiper windscreen washer liquid distribution system, comprising:
a windscreen washer liquid distribution network having:
at least one hydraulic pipe including at least one windscreen washer liquid circulation passage;
at least one hydraulic connector connected to the circulation passage; and
at least one thermally conductive member in thermal contact with the at least one hydraulic connector and with a heating element of the distribution system,
wherein said thermally conductive member is removable and includes a securing means that secures the thermally conductive member to the windscreen washer liquid distribution network,
wherein the securing means includes at least one pair of elastic lugs forming a clamp cooperating with at least one hydraulic connector, and
wherein at one end of each of the elastic lugs a cap is formed, and wherein the caps are substantially parallel to each other and cooperate through elastic nesting with two opposite faces of the hydraulic connector.

2. The distribution system according to claim 1 , wherein said thermally conductive member includes the securing means that secures said thermally conductive member to the windscreen washer liquid distribution network.

3. The distribution system according to claim 1 , wherein said thermally conductive member is formed in one piece.

4. The distribution system according to claim 1 , wherein said thermally conductive member is in contact with two opposite faces of the hydraulic connector.

5. The distribution system according to claim 1 , wherein the hydraulic connector is a male connector enabling connection of at least one circulation passage of a hydraulic pipe to a windscreen wiper.

6. The distribution system according to claim 1 , wherein said thermally conductive member includes a housing receiving the heating element.

7. The distribution system according to claim 1 , wherein said heating element is formed by heating conductors extending out of a sleeve of the at least one hydraulic pipe.

8. The distribution system according to claim 7 , wherein said thermally conductive member includes a protuberance around which the heating conductors are wound.

9. The distribution system according to claim 7 , wherein the means for securing the thermally conductive member are in thermal contact with the heating conductors.

10. The distribution system according to claim 1 , further comprising a thermal interface disposed between said thermally conductive member and said heating element, the thermal interface preferably coating said heating element.

11. The distribution system according to claim 1 , wherein said hydraulic pipe includes two circulation passages.

12. The distribution system according to claim 1 , wherein said hydraulic connector is a branch connector.

13. The distribution system according to claim 12 , wherein the hydraulic connector includes a check valve.

14. A motor vehicle windscreen wiper windscreen washer liquid distribution system comprising:
a windscreen washer liquid distribution network having:
at least one hydraulic pipe including at least one windscreen washer liquid circulation passage;
at least one hydraulic connector connected to the circulation passage; and
at least one thermally conductive member in thermal contact with the at least one hydraulic connector and with a heating element of the distribution system,
wherein said hydraulic pipe includes two circulation passages, and
wherein said thermally conductive member includes a thermally conductive tongue configured to be inserted between two hydraulic connectors.

15. The distribution system according to claim 14 , wherein the thermally conductive tongue is formed by two plates in thermal contact with a face of a respective hydraulic connector.

16. The distribution system according to claim 15 , wherein a pair of elastic lugs of a securing means are arranged symmetrically on either side of the thermally conductive tongue arranged at the centre.

17. The distribution system according to claim 14 , wherein a securing means include at least one clip configured to nest elastically over a hydraulic pipe of the distribution network.

18. A thermally conductive member for motor vehicle windscreen wiper windscreen washer liquid distribution systems, comprising:
a windscreen washer liquid distribution network having:
at least one hydraulic pipe including at least one windscreen washer liquid circulation passage;
at least one hydraulic connector for connecting the circulation passage, wherein the thermally conductive member is in thermal contact with at least one hydraulic connector and with a heating element of the distribution system; and
securing means for removably securing said thermally conductive member to the windscreen washer liquid distribution network,
wherein the securing means include at least one pair of elastic lugs forming a clamp cooperating with at least one hydraulic connector, and
wherein at one end of each of the elastic lugs a cap is formed, and wherein the caps are substantially parallel to each other and cooperate through elastic nesting with two opposite faces of the hydraulic connector.

Assignees

• Valeo Systemes Dessuyage

Inventors

• Caillot Gérald
• Jarasson Jean-Michel
• Izabel Vincent

Classifications

• B60S1/52

  Arrangement of nozzles; {Liquid spreading means}(nozzles per se B05B) · CPC title

• B60S1/488 Primary

  electrically · CPC title

• B60S1/482

  combined with the operation of windscreen wipers · CPC title

• B60S1/50

  Arrangement of reservoir · CPC title

• B60S1/524

  arranged in wiper blades · CPC title