Plug connector part having cooled contact elements for charging electrical vehicles

Patent metadata

Field	Value
Publication number	US-2019176653-A1
Application number	US-201716327333-A
Country	US
Kind code	A1
Filing date	Sep 14, 2017
Priority date	Sep 16, 2016
Publication date	Jun 13, 2019
Grant date	—

Abstract

A plug connector part includes: a plug section for plugging connection to an associated counter plug connector part; at least one contact element arranged on the plug section and having at least one electrically-conductive contact section for plugging connection to an associated counter-contact element of the counter plug connector part, and a shaft section connected to the contact section for securing an electrical line to the contact element; and a casing element that is attachable to the shaft section of the at least one contact element and has a body, a plug opening formed in the body for receiving the shaft section, and a cooling channel which is formed in or on the body and extends around the plug opening for conducting a coolant.

First claim

1 . A plug connector part, comprising:
a plug section configured for plugging connection to an associated counter plug connector part; at least one contact element arranged on the plug section and having at least one electrically-conductive contact section configured for plugging connection to an associated counter-contact element of the counter plug connector part, and a shaft section connected to the contact section configured to secure an electrical line to the contact element; and a casing element that is attachable to the shaft section of the at least one contact element and has a body, a plug opening formed in the body configured to receive the shaft section, and a cooling channel which is formed in or on the body and extends around the plug opening for conducting a coolant.

2 . The plug connector part according to claim 1 , wherein the cooling channel extends helically around the plug opening.

3 . The plug connector part according to claim 1 , wherein the shaft section is cylindrical.

4 . The plug connector part according to claim 1 , wherein the contact element is pluggable onto the associated counter-contact element along a plug-in direction,
wherein the shaft section has a circumferential surface extending circumferentially around the plug-in direction, and wherein the body of the casing element extends around the circumferential surface when the shaft section is accommodated in the plug opening.

5 . The plug connector part according to claim 4 , further comprising a heat-conducting paste arranged between the circumferential surface and the body of the casing element when the shaft section is accommodated in the plug opening.

6 . The plug connector part according to claim 1 , wherein the body of the casing element comprises an electrically-insulating material and
wherein, when the shaft section is accommodated in the plug opening, the coolant flowing through the cooling channel is electrically insulated from the shaft section via the body.

7 . The plug connector part according to claim 1 , wherein the casing element is inserted into a cooling housing.

8 . The plug connector part according to claim 7 , wherein the casing element together with the cooling housing delimits the cooling channel.

9 . The plug connector part according to claim 7 , wherein the plug connector part has a pair of two contact elements, and
wherein a casing element and a cooling housing are arranged on the shaft section of each contact element.

10 . The plug connector part according to claim 9 , wherein the cooling housings of the two contact elements mirror-symmetrical to one another and are connected to one another.

11 . The plug connector part according to claim 1 , further comprising a distribution element which has at least one inlet port configured to introduce the coolant and at least one outlet port configured to discharge the coolant.

12 . The plug connector part according to claim 11 , wherein the distribution element is fixedly connected to cooling housings of a pair of contact elements.

13 . The plug connector part according to claim 12 , wherein the at least one inlet port is in flow connection via first flow channels with an inlet opening of each cooling housing in order to introduce the coolant into the cooling channel of the casing element arranged on the cooling housing, and the at least one outlet port is in flow connection via second flow channels with an outlet opening of each cooling housing in order to discharge the coolant from the cooling channel of the casing element arranged on the cooling housing.

14 . The plug connector part according to claim 13 , wherein the distribution element has at least one third flow channel extending between at least one of the first flow channels and at least one of the second flow channels for a flow of coolant between the first flow channels and the second flow channels.

15 . The plug connector part according to claim 14 , wherein the flow of coolant between the first flow channels and the second flow channels is adjustable via the at least one third flow channel by an adjusting element.

Assignees

• Phoenix Contact E Mobility Gmbh

Inventors

• Fuehrer Thomas
• Babezki Robert

Classifications

• B60L53/302 Primary

  Cooling of charging equipment · CPC title

• B60L53/18

  Cables specially adapted for charging electric vehicles · CPC title

• H01R13/5205

  Sealing means between cable and housing, e.g. grommet (H01R13/5221 takes precedence) · CPC title

• B60L53/16

  Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles · CPC title

• H02G15/013

  Sealing means for cable inlets (inlets for cables filled with, or surrounded by, gas or oil H02G15/32) · CPC title