Plug-In System for Charging an Electrical Energy Store

Patent metadata

Field	Value
Publication number	US-2021001737-A1
Application number	US-201916977314-A
Country	US
Kind code	A1
Filing date	Feb 11, 2019
Priority date	Mar 2, 2018
Publication date	Jan 7, 2021
Grant date	—

Abstract

A plug-in system for a wired charging process for charging an electrical energy store of an at least partially electrically operated device includes a charging socket positioned on the electrically operated device. The plug-in system has a charging device with a charging plug which can be extended towards the charging socket using a translational movement. The charging socket has a cover for protecting contact parts of the charging socket from environmental influences. The charging plug is designed to produce, as a result of the translational movement, one or more reclosable contact part openings in the cover, through which openings contact parts of the charging plug can be guided during the translational movement in order to form pairs of galvanically conductive connections to the corresponding contact parts of the charging socket.

First claim

1 .- 18 . (canceled)

19 . A plug-in system for a wired charging process for charging an electrical energy store of an at least partially electrically operated device, comprising:
a charging socket which is arranged on the electrically operated device; a charging device with a charging plug which is extendable toward the charging socket by a translatory movement; wherein the charging socket comprises a cover in order to protect contact parts of the charging socket from environmental influences; and wherein the charging plug is configured to generate one or more reclosable contact part openings in the cover by way of the translatory movement, through which openings contact parts of the charging plug are led within the scope of the translatory movement, in order to form, with the corresponding contact parts of the charging socket, respective pairs of galvanically conductive connections.

20 . The plug-in system according to claim 19 , wherein
the charging plug is configured to reclose the one or more contact part openings by way of an inverse translatory movement away from the charging socket, in order to protect the contact parts of the charging socket from the environmental influences.

21 . The plug-in system according to claim 19 , wherein
the charging plug has a guide bolt; the cover has a bolt opening for receiving the guide bolt; and the charging plug and the cover are embodied such that the one or more contact part openings are formed in reaction to translatory movement of the guide bolt within the bolt opening.

22 . The plug-in system according to claim 21 , wherein
the contact parts of the charging plug are arranged on the charging plug such that within the scope of the translatory movement the guide bolt firstly penetrates the bolt opening before the contact parts reach the cover.

23 . The plug-in system according to claim 21 , wherein
the cover comprises at least two cover disks, each with one or more holes; and the guide bolt and the cover disks are embodied such that in reaction to the translatory movement of the guide bolt within the bolt opening, the cover disks are rotated with respect to one another so that holes in the cover disks are aligned one on top of the other so as to form the one or more contact part openings.

24 . The plug-in system according to claim 23 , wherein
the guide bolt has a slotted link which is designed to interact with a link block on at least one of the cover disks, in order to rotate the cover disks with respect to one another; or at least one of the cover disks has a slotted link which is designed to interact with a link block on the guide bolt in order to rotate the cover disks with respect to one another.

25 . The plug-in system according to claim 23 , wherein
a seal is arranged between the two cover disks.

26 . The plug-in system according to claim 23 , wherein
the charging socket has a pressure element which is configured to apply a compressive force to the two cover disks in order to compress the cover disks, and the charging socket is embodied such that the compressive force is reduced in reaction to the translatory movement of the guide bolt within the bolt opening.

27 . The plug-in system according to claim 21 , wherein
the guide bolt is designed to form a galvanically conductive connection to a contact element of the charging socket.

28 . The plug-in system according to claim 19 , wherein
the charging plug and the charging socket are embodied such that the contact parts are locked to one another within the scope of the translatory movement.

29 . The plug-in system according to claim 19 , wherein
a contact part of the charging plug and a corresponding contact part of the charging socket have complementary profiles by which: a securing force is produced when the contact parts are plugged one into the other; and/or a contact surface between the contact parts is enlarged in comparison with a planar profile.

30 . The plug-in system according to claim 19 , wherein
the charging device comprises an electrically operated actuator which is configured to bring about the translatory movement of the charging plug.

31 . The plug-in system according to claim 19 , wherein the charging device comprises:
a mobile housing on or in which the charging plug is arranged; and a winding roller which is configured to wind-on a charging cable by which the charging plug is connected to a power supply.

32 . The plug-in system according to claim 31 , wherein
the winding roller is embodied, in the event of a movement of the charging device, to unwind or wind-on the charging cable such that the charging cable is tensioned between the power supply and the charging device.

33 . The plug-in system according to claim 31 , wherein
the winding roller is arranged on an outer wall of the housing so as to be rotatable about a vertical axis of the charging device.

34 . The plug-in system according to claim 19 , wherein
the at least partially electrically operated device is a road vehicle; the charging socket is arranged on an underfloor of the road vehicle; and the charging device is designed to plug the charging plug into the charging socket along a vertically extending translatory movement.

35 . A charging socket for a plug-in system, in which
the plug-in system permits a wired charging process for charging an electrical energy store of an at least partially electrically operated device, the charging socket is designed to be arranged on the electrically operated device, and the plug-in system comprises a charging device with a charging plug which is extendable toward the charging socket by a translatory movement, wherein the charging socket comprises: contact parts which are configured to transmit electrical energy for charging the electrical energy store; a cover in order to protect the contact parts of the charging socket from environmental influences; and wherein the charging socket is configured to open, in reaction to the translatory movement of the charging device, one or more reclosable contact part openings in the cover through which openings contact parts of the charging plug are led within the scope of the translatory movement, in order to form, with the corresponding contact parts of the charging socket, respective pairs of galvanically conducive connections.

36 . A charging device for a plug-in system, in which
the plug-in system permits a wired charging process for charging an electrical energy store of an at least partially electrically operated device, wherein the charging device comprises: a charging plug which, by way of a translatory movement, is extendable toward a charging socket which is arranged on the at least partially electrically operated device; the charging socket comprises a cover in order to protect contact parts of the charging socket from environmental influences; and the charging plug is configured to generate one or more reclosable contact part openings in the cover by way of the translatory movement, through which openings contact parts of the charging plug are led within the scope of the translatory movement, in order to form, with the corresponding contact parts of the charging socket, respective pairs of galvanically conductive connections.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Hoess Bernhard
• Huber Robert

Classifications

• H02J7/751

  concerning the insertion or the connection of the batteries · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title

• H01R13/453

  Shutter or cover plate opened by engagement of counterpart · CPC title

• H01R2201/26

  for vehicles · CPC title

• B60K6/28

  characterised by the electric energy storing means, e.g. batteries or capacitors · CPC title