DE102020109228A1 - Hydraulic connection arrangement - Google Patents

Abstract

The invention relates to a hydraulic connection arrangement (1), in particular for a hydraulic actuation system (2) of a clutch and / or braking device (3) of a motor vehicle (4), comprising a plug (5) and a corresponding socket (6) which can be coupled to one another in a hydraulically conductive manner, the plug (5) having a plug sleeve (7) which is connected to a first hydraulic line (8) and to a plug housing (9), the first hydraulic line (8) being coaxial within the plug sleeve (7) is arranged, and the plug housing (9) is arranged coaxially on the plug sleeve (7) and in the radial direction outside the first hydraulic line (8), the plug socket (6) having a socket sleeve (10) which is connected to a second hydraulic line (11) and a socket housing (12) is connected, the socket housing (12) coaxially on the socket sleeve (10) and in the radial direction outside the second hydraulic line (11) is arranged, wherein the connector housing (9) and the first hydraulic line (8) are attached by crimping to the connector sleeve (7), and the socket housing (12) and the second hydraulic line (11) by means of crimping on the socket sleeve (10) are attached.

Description

The present invention relates to a hydraulic connection arrangement, in particular for a hydraulic actuation system of a clutch and / or brake device of a motor vehicle, comprising a plug and a socket corresponding thereto, which can be coupled to one another in a hydraulically conductive manner, the plug having a plug sleeve which is connected to a first hydraulic line and is connected to a connector housing, wherein the first hydraulic line is arranged coaxially inside the connector sleeve, and the connector housing is arranged coaxially on the connector sleeve and in the radial direction outside of the first hydraulic line, the connector socket having a socket sleeve which is connected to a second hydraulic line and a socket housing is connected, the socket housing is arranged coaxially on the socket sleeve and in the radial direction outside the second hydraulic line.

Plug connections for connecting hydraulically operated components of vehicles, such as brakes or clutches, usually comprise two components that are connected to one another in a form-fitting and / or force-fitting manner. A distinction is often made between manually detachable plug connections and permanent plug connections that can only be detached with appropriate tools. In the pamphlet WO 2007/025494 A1 describes a hydraulic coupling with a plug and a socket. The plug and the socket are connected to one another via a bayonet lock. To prevent rotation, a wire form spring is provided, which can be removed manually in order to release the connection by opening the bayonet lock

The object of the invention is to provide a hydraulic connection arrangement which is optimized in terms of its manufacturing complexity and manufacturing costs.

This object is achieved by a hydraulic connection arrangement, in particular for a hydraulic actuation system of a clutch and / or brake device of a motor vehicle, comprising a plug and a socket corresponding thereto, which can be coupled to one another in a hydraulically conductive manner, the plug having a plug sleeve which is connected to a first hydraulic line and is connected to a plug housing, wherein the first hydraulic line is arranged coaxially inside the plug sleeve, and the plug housing is arranged coaxially on the plug sleeve and in the radial direction outside the first hydraulic line, the plug socket having a socket sleeve which is connected to a second hydraulic line and a socket housing is connected, the socket housing is arranged coaxially on the socket sleeve and in the radial direction outside the second hydraulic line, the plug housing and the first hydraulic line being in the middle els crimping are attached to the connector sleeve, and the socket housing and the second hydraulic line are attached to the socket sleeve by means of crimping.

This achieves the advantage that a connection of the hydraulic lines to the plug and the socket can be implemented in a manner that is simplified in terms of production technology.

The hydraulic connection arrangement is designed for a motor vehicle, in particular for a small or micro vehicle or an electric vehicle. The motor vehicle can preferably be driven electrically by an electric motor. The motor vehicle preferably has at least one wheel. With only one wheel, the vehicle can be designed as an electric unicycle, e.g. as a so-called monowheel or solo wheel. With two or more wheels, the vehicle is preferred as a scooter, in particular as an electric motorcycle, as an electric scooter, as an electric scooter, electric scooter, electric scooter, e.g. e-scooter, as a Segway, hoverboard, kickboard, skateboard, longboard or the like. educated. Alternatively, the vehicle can be designed as a bicycle, in particular as an electric bicycle, e.g. as a pedelec or as an e-bike. The vehicle can alternatively be designed as a multi-track bicycle, in particular with three or more wheels. For example, the vehicle can be a transport or cargo bike, in particular a motorized or electrically driven transport or cargo bike, in particular a three-wheel or four-wheel pedelec or a rickshaw, in particular with or without a roof, or a cabin scooter.

Crimping in the context of this application is understood to be a joining process in which two components are connected to one another by plastic deformation, for example by flanging, squeezing, crimping or folding.

According to an advantageous embodiment of the invention, it can be provided that the plug sleeve and / or the socket sleeve are formed from a plastically deformable metallic material.

According to a further preferred further development of the invention, it can also be provided that the first hydraulic line and / or the second hydraulic line are hose-like and each have a circumferential projection protruding outward in the radial direction from the jacket surface. It can this ensures that a hydraulic line can be axially fixed in a form-fitting manner within the plug sleeve or the socket sleeve.

Furthermore, according to a likewise advantageous embodiment of the invention, it can be provided that the plug sleeve has an annular first receiving section into which a corresponding annular first fastening section of the plug housing engages and / or the socket sleeve has an annular second receiving section into which a corresponding annular second Fastening portion of the socket housing engages. The advantageous effect of this embodiment is based on the fact that the components can be fixed in a form-fitting manner in the axial direction.

According to a further particularly preferred embodiment of the invention, it can be provided that the first hydraulic line is fixed positively in the plug sleeve and / or the second hydraulic line in the socket sleeve, at least in the axial direction.

Furthermore, the invention can also be further developed in such a way that the first fastening section of the plug housing has a first circumferential groove into which the receiving section of the plug sleeve engages at least in sections in order to axially fix the plug housing with respect to the plug sleeve and / or the second fastening section of the socket housing has a second has a circumferential groove in which the receiving section of the socket sleeve engages at least in sections in order to axially fix the socket housing with respect to the socket sleeve.

In a likewise preferred embodiment variant of the invention it can also be provided that a sealing ring is arranged axially between the circumferential projection and the distal end of the second hydraulic line protruding into the socket sleeve. In this way it can be achieved that the tightness of the hydraulic connection arrangement can be improved.

It can also be advantageous to further develop the invention in such a way that a second sealing ring is arranged axially between the sealing ring and the distal end of the second hydraulic line protruding into the socket sleeve. The advantage that can be realized in this way is that the tightness of the hydraulic connection arrangement can be further improved.

According to a further preferred embodiment of the subject matter of the invention, it can be provided that the circumferential projection of the first hydraulic line is arranged in a circumferential groove of the plug sleeve that is designed to correspond to it.

Finally, the invention can also be implemented in an advantageous manner in such a way that a sealing ring is arranged axially between the circumferential groove and the distal end of the first hydraulic line protruding into the connector sleeve.

The invention is explained in more detail below with reference to figures without restricting the general inventive concept.

• 1 eine hydraulische Verbindungsanordnung in einer schematischen Querschnittsansicht,
• 2 perspektivische Ansichten von Stecker und Steckerbuchse,
• 3 hydraulische Verbindungsanordnung in verschiedenen Phasen des Zusammensteckens von Stecker und Steckerbuchse in einer schematischen Querschnittsansicht, und
• 4 Kraftfahrzeug mit hydraulischer Verbindungsanordnung in einer schematischen Blockschaltdarstellung.

Show it

• 1 a hydraulic connection arrangement in a schematic cross-sectional view,
• 2 perspective views of the plug and socket,
• 3 hydraulic connection arrangement in different phases of the mating of plug and socket in a schematic cross-sectional view, and
• 4th Motor vehicle with hydraulic connection arrangement in a schematic block diagram.

The figure shows a hydraulic connection arrangement 1 , especially for a hydraulic actuation system 2 a clutch and / or braking device 3 of a motor vehicle 4th as it is in 4th is shown as an example.

The hydraulic connection arrangement 1 includes a connector 5 and a corresponding socket 6th which can be coupled to one another in a hydraulically conductive manner. The plug 5 has a connector sleeve 7th on that with a first hydraulic line 8th and with a connector housing 9 is connected, the first hydraulic line 8th coaxially within the connector sleeve 7th is arranged. The connector housing 9 is coaxial on the connector sleeve 7th and in the radial direction outside the first hydraulic line 8th arranged.

The plug socket has an analogue to this 6th a socket sleeve 10 that with a second hydraulic line 11 and a socket housing 12th connected is. The socket housing 12th is coaxial on the socket sleeve 10 and in the radial direction outside the second hydraulic line 11 arranged.

The connector housing 9 and the first hydraulic line 8th are by means of crimping on the connector sleeve 7th attached. Likewise are the socket housings 12th and the second hydraulic line 11 by crimping on the socket sleeve 10 attached.

The connector sleeve 7th and the socket sleeve 10 are correspondingly formed from a plastically deformable metallic material.

The first hydraulic line 8th and the second hydraulic line 11 are hose-like and each have a circumferential projection protruding outward in the radial direction from the jacket surface 19th on. This creates the first hydraulic line 9 in the connector sleeve 7th and the second hydraulic line 11 in the socket sleeve 10 fixed positively in the axial direction.

The connector sleeve 7th has an annular first receiving portion 13th on, in which a corresponding annular first fastening portion 14th of the connector housing 9 engages and the socket sleeve 10 has an annular second receiving portion 15th , in which a corresponding annular second fastening section 16 of the socket housing 12th intervenes.

In the 1 it is also shown that the first fastening section 14th of the connector housing 9 a first circumferential groove 17th has in which the receiving section 13th the connector sleeve 7th engages at least in sections to the connector housing 9 opposite the connector sleeve 7th to be fixed axially. The second fastening section has analogous to this 15th of the socket housing 12th a second circumferential groove 18th into which the receiving section 15th the socket sleeve 10 engages at least in sections to the socket housing 12th opposite the socket sleeve 10 to be fixed axially.

What the 1 It can also be seen that axially between the circumferential projection 19th and that in the socket sleeve 10 protruding distal end of the second hydraulic line 11 a sealing ring 20th is arranged. Axially between the sealing ring 20th and that in the socket sleeve 10 protruding distal end of the second hydraulic line 11 is a second sealing ring 21 arranged.

The all-round projection 19th the first hydraulic line 8th is in a correspondingly designed circumferential groove 22nd the connector sleeve 7th arranged.

Finally shows the 1 also that axially between the circumferential groove 22nd and that in the connector sleeve 7th protruding distal end of the first hydraulic line 8th a sealing ring 23 is arranged.

2 shows how the connector 5 and the socket 6th can be coupled with each other, which can be seen well from the perspective illustration. Figures bc show the connector 5 in different perspective representations and the , a the socket 6th in different perspective representations. Figure e shows the connector 5 and the socket 6th in assembled condition.

• Der Dichtungsring 20 wird auf die zweite hydraulische Leitung 11 aufgeschoben und in die Buchsenhülse 10 eingesetzt. Das aus Kunststoff gefertigte Buchsengehäuse 12 wird ebenfalls mit der Buchsenhülse 10 verbunden, indem der Befestigungsabschnitt 16 des Buchsengehäuses 12 in den korrespondierenden Aufnahmeabschnitt 15 der Buchsenhülse 10 eingesetzt wird. Die Buchsenhülse 10 wird nachfolgend durch ein entsprechendes Crimp-Werkzeug plastisch so verformt, dass die zweite hydraulische Leitung 11 sowie das Buchsengehäuse 12 form- und bevorzugt auch kraftschlüssig miteinander dichtend verbunden sind.

The manufacture of the socket 6th can be done as follows:

• The sealing ring 20th is on the second hydraulic line 11 pushed on and into the socket sleeve 10 used. The socket housing made of plastic 12th also comes with the socket sleeve 10 connected by the fastening section 16 of the socket housing 12th in the corresponding receiving section 15th the socket sleeve 10 is used. The socket sleeve 10 is then plastically deformed using a suitable crimping tool in such a way that the second hydraulic line 11 as well as the socket housing 12th are positively and preferably also positively connected to one another in a sealing manner.

Below is the spring 24 is attached to the resulting subassembly from the socket sleeve 10 , Socket housing 12th and second hydraulic line 11 assembled. The piston 25th is then placed in the socket housing 12th pushed and locked by a bayonet-like snap mechanism.

In the event of inadvertent actuation of the system, the internal pressure will force the fluid through the channel 26th at the specific seal 27 radially against the inner cylinder of the piston 25th to press; the initial compression of the seal 27 makes it possible to keep the system tight.

The manufacture of the connector 5 can be done as follows: The O-ring 28 is on the valve 29 mounted and in the molded plastic connector housing 9 pushed. The feather 30th is in the connector housing 9 in stop position against the valve 29 assembled. The first hydraulic line 8th is in the connector sleeve 7th assembled. To the same crimping tool for the connector 5 and the socket 6th to be able to use is the connector sleeve 7th and the socket sleeve 10 designed identically. The seal 23 is also at the distal end of the first hydraulic line 8th assembled. A washer 31 Metal or plastic is placed between the spring 30th and the hydraulic line 8th placed to the spring 30th and the seal 23 to serve as a stop.

• Die Abbildungen A-C zeigen, dass der Stecker 5 und die Steckerbuchse 6 einander axial gegenüberliegend bereitgestellt und dann zusammengeführt werden.
• Die Abbildung A zeigt den ersten Kontakt zwischen der Steckerhülse 7 und dem Ventil 29. Die flachen Bereiche an den Enden vermeiden das Einfangen von Luft.
• Die Abbildung B zeigt, wie der Stecker 5 sich innerhalb der Steckerbuchse 6 beim weiteren Zusammenstecken weiter nach links bewegt wird, mit Ausnahme des Ventils 29, das an Buchsenhülse 7 anliegt. Das Steckergehäuse 9 gelangt nun mit der Dichtung 27 in Kontakt. Die spezifischen Formen beider Teile erlauben es, die eingeschlossene Luft zu begrenzen. Das Volumen zwischen den Dichtungen 27 und 28 ist nun geschlossen und verhindert so die externe Leckage oder das Einführen von Luft.
• Die zeigt schließlich wie der Stecker 5 weiter innerhalb der Steckerbuchse 6 nach links geschoben wird; sobald er sich in der unteren Anschlagposition befindet, wird der Stecker 5 leicht in die Steckerbuchse 6 gedreht, um die Befestigung mit einem nicht näher erläuterten Buchsenverbindungsclip zu verriegeln. Man erkennt, dass der Stecker 5 und die Steckerbuchse 6 in dieser Montagesituation hydraulisch leitend und dicht miteinander gekoppelt sind.

All elements assembled in this way are made by crimping the connector sleeve 10 using the same crimping tool as the socket assembly. the Connection of plug 5 and socket 6th are based on 3 explained in more detail:

• The figures AC show that the plug 5 and the socket 6th are provided axially opposite one another and then brought together.
• Figure A shows the first contact between the connector sleeve 7th and the valve 29 . The flat areas at the ends avoid air trapping.
• Figure B shows how the connector 5 inside the socket 6th is moved further to the left when plugging together, with the exception of the valve 29 that on socket sleeve 7th is present. The connector housing 9 now arrives with the seal 27 in contact. The specific shapes of both parts allow the trapped air to be limited. The volume between the seals 27 and 28 is now closed, preventing external leakage or the introduction of air.
• the finally shows how the connector 5 further inside the socket 6th is pushed to the left; as soon as it is in the lower stop position, the connector will 5 easily into the socket 6th rotated to lock the attachment with an unspecified socket connection clip. You can see that the connector 5 and the socket 6th are hydraulically conductive and tightly coupled to one another in this assembly situation.

The invention is not limited to the embodiments shown in the figures. The above description is therefore not to be regarded as restrictive, but rather as explanatory. The following patent claims are to be understood in such a way that a named feature is present in at least one embodiment of the invention. This does not exclude the presence of further features. If the patent claims and the above description define “first” and “second” features, this designation serves to distinguish between two similar features without defining an order of precedence.

List of reference symbols

1

Connection arrangement

2

Actuation system

3

Braking device

4th

Motor vehicle

5

plug

6th

Socket

7th

Connector sleeve

8th

first hydraulic line

9

Connector housing

10

Socket sleeve

11

second hydraulic line

12th

Socket housing

13th

first receiving section

14th

first fastening section

15th

second receiving section

16

second fastening section

17th

Groove

18th

Groove

19th

head Start

20th

Sealing ring

21

Sealing ring

22nd

Groove

23

Sealing ring

24

feather

25th

Pistons

26th

channel

27

poetry

28

O-ring

29

Valve

30th

feather

31

Washer

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2007/025494 A1 [0002]

Claims (10)

Hydraulic connection arrangement (1), in particular for a hydraulic actuation system (2) of a clutch and / or braking device (3) of a motor vehicle (4), comprising a plug (5) and a corresponding socket (6) which can be coupled to one another in a hydraulically conductive manner The plug (5) has a plug sleeve (7) which is connected to a first hydraulic line (8) and to a plug housing (9), the first hydraulic line (8) being arranged coaxially within the plug sleeve (7) is, and the plug housing (9) is arranged coaxially on the plug sleeve (7) and in the radial direction outside the first hydraulic line (8), the plug socket (6) having a socket sleeve (10) which is connected to a second hydraulic line ( 11) and a socket housing (12) is connected, the socket housing (12) is arranged coaxially on the socket sleeve (10) and in the radial direction outside the second hydraulic line (11), thereby characterized in that the plug housing (9) and the first hydraulic line (8) are attached to the plug sleeve (7) by crimping, and the socket housing (12) and the second hydraulic line (11) are attached to the socket sleeve (10) by crimping are. Hydraulic connection arrangement (1), according to Claim 1 , characterized in that the plug sleeve (7) and / or the socket sleeve (10) are formed from a plastically deformable metallic material. Hydraulic connection arrangement (1) according to one of the preceding claims, characterized in that the first hydraulic line (8) and / or the second hydraulic line (11) are hose-like and each have a circumferential protrusion protruding radially outward from the jacket surface (19) have. Hydraulic connection arrangement (1) according to one of the preceding claims, characterized in that the plug sleeve (7) has an annular first receiving section (13) into which a corresponding annular first fastening section (14) of the plug housing (9) engages and / or which Socket sleeve (10) has an annular second receiving section (15) into which a corresponding annular second fastening section (16) of the socket housing (12) engages. Hydraulic connection arrangement (1) according to one of the preceding claims, characterized in that the first hydraulic line (9) in the plug sleeve (7) and / or the second hydraulic line (11) in the socket sleeve (10) form-fit at least in the axial direction is fixed. Hydraulic connection arrangement (1) according to one of the preceding claims, characterized in that the first fastening section (14) of the plug housing (9) has a first circumferential groove (17) into which the receiving section (13) of the plug sleeve (7) engages at least in sections to axially fix the plug housing (9) relative to the plug sleeve (7) and / or the second fastening section (15) of the socket housing (12) has a second circumferential groove (18) into which the receiving section (15) of the socket sleeve (10) engages at least in sections in order to axially fix the socket housing (12) with respect to the socket sleeve (10). Hydraulic connection arrangement (1) according to one of the preceding claims, characterized in that a sealing ring (20) is arranged axially between the circumferential projection (19) and the distal end of the second hydraulic line (11) protruding into the socket sleeve (10). Hydraulic connection arrangement (1) according to one of the preceding claims, characterized in that a second sealing ring (21) is arranged axially between the sealing ring (20) and the distal end of the second hydraulic line (11) protruding into the socket sleeve (10). Hydraulic connection arrangement (1), according to one of the preceding claims, characterized in that the circumferential projection (19) of the first hydraulic line (8) is arranged in a corresponding circumferential groove (22) of the plug sleeve (7). Hydraulic connection arrangement (1) according to one of the preceding claims, characterized in that a sealing ring (23) is arranged axially between the circumferential groove (22) and the distal end of the first hydraulic line (8) protruding into the plug sleeve (7).

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