EP2867957A1

EP2867957A1 - Locking device for a charging plug

Info

Publication number: EP2867957A1
Application number: EP13736468.3A
Authority: EP
Inventors: Stefan MÖNIG; Dirk Wittwer; Igor Gorenzweig
Original assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Current assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Priority date: 2012-07-02
Filing date: 2013-06-03
Publication date: 2015-05-06
Also published as: DE102012013998A1; WO2014005562A1; CN104379395B; CN104379395A

Abstract

Disclosed is a locking device (2) for a charging plug which can be inserted into a charging plug socket (1) that is arranged on a vehicle or on a charging pillar, the locking device (2) having a housing (6) in which a locking element (20) is mounted which is operationally connected to a receptacle which is arranged on the charging plug in a locking position in order to prevent the charging plug from being removed, in particular during the charging process, and the locking element (20) being coupled to an emergency unlock actuation element (11) which is guided outside the housing (6) in a conduit (12) of a guiding element (10) and which is led out via an opening (21) that is arranged on the housing (6), wherein, when the emergency unlock actuation element (11) is actuated, the locking element (20) can be moved from its locking position into an unlocking position in which the locking element (20) is located outside the receptacle of the charging plug, wherein the charging plug can be removed from the charging plug socket (1) in the unlocking position, the guiding element (10) being detachably arranged on a wall of the housing (6) in form- and/or force-locked manner.

Description

Locking device for a charging plug

The invention relates to a locking device for a charging plug, which is plugged into a arranged on a vehicle or on a charging station charging socket, wherein the locking device comprises a housing in which a locking element is mounted, which in a

Locking position is operatively connected to a receptacle arranged on the charging connector to the charging connector, in particular during the

Charging, to prevent the withdrawal and the locking element is coupled to a guided outside the housing in a channel of a guide element Emergency unlocking actuator, which is led out through an opening arranged on the housing, wherein upon actuation of the

Emergency unlocking actuator, the locking element of his

Locking position can be brought into an unlocking position, in which the locking element is arranged outside the receptacle of the charging plug, wherein the charging plug in the unlocked position from the charging socket is pulled out.

From the prior art, a locking device comprising a housing for a charging plug is known, which has a guide element with a channel. The guide element is permanently attached to the housing and serves to guide a trained as emergency unlocking actuator

Bowden cable, wherein a portion of the Bowden cable is guided within the channel. The Bowden cable has at one end a pin, which with a

Locking element is connected within the housing of the locking device. A guide of the pin inside the canal of the

Guide element is excluded due to its size. If now the

Locking unit must be replaced because of a defect, the pin must be released from the locking element. Further, the pin within the housing must be separated from the Bowden cable, because a passage of the pin through the channel of the guide element due to its size

is excluded. It is therefore the object of the invention to provide a locking device

to provide which in case of a defect in a simple manner of the

Emergency unlocking actuator is separable.

The object is achieved in that the guide element is arranged positively and / or non-positively releasably on a wall of the housing.

If the locking device should now be defective and must be replaced, so can advantageously first the

Emergency unlocking actuator be decoupled from the locking device. Thereafter, the guide member is released from the housing and the

Emergency unlocking actuator is led out through the opening of the housing of the locking device. Finally, the

Locking device removed from the charging socket. Then one will

operable locking device disposed on the charging socket and it is the previously used Notentriegelungsbetätigungselement performed by the opening in the housing and with the locking element within the

functional locking device coupled in the housing. Finally, the previously used guide element is connected to the functional locking device again positively and / or positively. The above-described order of disassembly and assembly of the locking device can also be performed in any other order. By this measure, it is possible to simplify the disassembly and assembly and to reduce the number of parts to be replaced.

According to a preferred embodiment it is provided that the

Guide element is connected by means of a clip connection with the housing. The clip connection has the advantage that the guide element on the housing of the Verrieglungsvorrichtung easy to assemble and disassemble. The assembly and disassembly is further simplified when the guide member is disposed on an outer wall of the housing, because the outer wall of the housing of the locking device is easily accessible to a worker.

Very compact is the locking device when the guide element is substantially U-shaped. In particular, when little space is available, the emergency unlocking actuator can be safely and reliably guided in the desired direction.

According to a further preferred embodiment, it is provided that the emergency unlocking actuating element arranged in the guide element has a loop at its first end. To operate the Bowden cable easily and safely in an emergency, this has a loop which can be penetrated by a user with his fingers.

According to a further embodiment it is provided that the

Emergency unlocking actuator is connected at its second end with a pin which is coupled to the locking element within the housing. The pin is used for easy coupling of the

Emergency unlocking actuator with the locking element.

Very simple is the assembly and disassembly, if that

Emergency unlocking actuator is releasably connected to the pin. Very safe is the structural design, when the Notentriegelungsbetätigungselement is permanently connected to the pin.

According to a further embodiment, it is provided that the diameter of the pin, in particular substantially cylindrically shaped pin, smaller than the diameter of the opening arranged on the housing and larger than the diameter of the channel. By this measure, it is ensured that the emergency unlocking actuator at a disassembly of the

Guide element easily and with little effort from the housing can be removed without damaging the components. At the same time prevents, in particular after disassembly of the guide member of the housing of the locking element, the guide element of the

Emergency release actuator releases.

According to a further preferred embodiment it is provided that the

Diameter of the opening of the housing to carry out the

Emergency unlocking actuator is greater than the diameter of the channel. As a result, the guide element serves as a stop for the pin and at the same time as Hubwegbegrenzung for Notentriegelungsbetätigungselement.

According to a further embodiment it is provided that the

Notentriegelungsbetätigungselements is designed as a Bowden cable.

The trained from a metal braid Bowden cable has a small

Diameter and is due to its flexibility ideal for guiding in the channel of the guide element. In order to operate the Bowden cable in an emergency, this has a loop on. A secure coupling of the Bowden cable with the

Locking element is ensured by a pin.

The invention will be described with reference to an embodiment.

Show it:

1 shows a charging socket with a locking device having an emergency operation

Figure 2, the charging socket with the locking device having a

Guide element

3 shows an inner space of a housing of the locking device

Figure 4, the guide element with a Bowden cable at the end of a

Pin is arranged, Figure 5 shows the guide element with the Bowden without pins, and

FIG. 6 shows a fastening end piece.

FIG. 1 shows a charging socket 1 for receiving an electric plug (not shown). The charging socket 1 in the present embodiment is arranged in an electric vehicle. It is also conceivable that

Use charging socket 1 in a charging station. At the charging socket 1, a locking device 2 is arranged, which by means of screws 3 with the

Charging socket 1 is connected. A supply cable 4 having a plurality of wires 5 is used inter alia for power supply and for signal transmission and connects the locking device 2 with a not shown in detail

Control unit. The locking device 2 has a housing 6 which comprises a first housing shell 7 and a second housing shell 8. The two housing shells 7,8 are connected to each other by means of a positive connection, in particular by means of a latching connection, and form an inner chamber 9, as visualized in Figure 3, for receiving electrical and

mechanical components. On the locking device 2 is a

Guiding element 10 is arranged, which is connected via a clip connection or a plug connection securely and firmly to the housing 6 on an outer wall of the second housing shell 8. The connector is formed like a labyrinth to form a stable and secure connection.

As can be seen in particular in Figure 4 and Figure 5, serves as u-shaped guide member 10 for guiding a designed as a Bowden emergency release actuation element 11, which in a channel 12 of

Guiding element 10 is movably guided. It is also conceivable that

Guide element I-shaped, L-shaped etc. having at least one leg form, the legs lie in a plane. Likewise, another geometric shape of the guide element 10 is conceivable. Several consecutively arranged legs lead in any spatial directions and form an SD guide element. The Bowden cable is guided in a hose 13 to protect the Bowden cable. The tube 13 opens into the channel 12 and is at least partially disposed within the guide member 10. Thus, the tube 13 by means of a

Plug connection securely connected to the channel 12, because the diameter of the tube 13 is greater than the diameter of the channel 12 is formed. Within the channel 12, the Bowden cable is for the most part outside the

Hose 13. The Bowden cable is guided by an opening 21 arranged on the housing 6 into the chamber 9, wherein the diameter of the opening 21 of the housing 6 for the implementation of the Bowden cable designed as

Emergency unlocking actuator 11 is greater than the diameter of the channel 12.

The Bowden cable has a first end 14 and a second end 15. At the second end 15 of the formed of a metal braid Bowden a cylinder 18 is formed, as shown in Figure 5, which forms a T-shaped connecting element 16 with the Bowden cable. The T-shaped connecting element 16 virtually forms the second end 15 of the Bowden cable. The cylinder 18 is designed such that a passage through the channel 12 is excluded. The T-shaped

Connecting element 16 serves to connect a substantially cylindrically shaped pin 17. In this case, the T-shaped connecting element 16 is hooked or clipped into a corresponding receptacle, in such a way that the connection is secure and subsequently can be easily solved again. The diameter of the pin 17 formed as a lever is smaller than the diameter of the opening 21 and larger than the diameter of the channel 12th

The pin 17 is connected via a carrier 19 with a locking element 20, wherein in the present case between the pin 17 and the carrier 19 is a releasable latching connection. Alternatively, a non-detachable connection between the pin 17 and the carrier 19 is possible by the pin 17 is performed through an opening in a slot of the carrier 19 and is connected by means of a clip connection. The pin 17 is movably mounted in the slot of the carrier. Other connection options, both subsequently solvable and subsequently insoluble connection are also possible. The locking member 20 is movable within the pin 17 by a Bearing spring mounted. In general, the locking element 20 is used to lock a plugged into the charging socket 1 charging plug, in particular during the charging process. In this case, the locking element 20 is moved by means disposed in the housing 6 of the locking device 2 electric drive in a corresponding receptacle of the charging plug, so that a

Pulling out the charging plug from the charging socket 1 is prevented. The locking element 20 is then in a locking position.

At the first end 14 of the Bowden cable is a fastening end piece 22, shown in FIG. 6, into which the hose 13 opens. The hose 13 is at least partially disposed within the mounting end piece 22. Thus, the hose 13 by means of a plug connection securely with a channel of the

Befestigungsendstücks 22 connected because the diameter of the tube 13 is greater than the diameter of the channel 12 of the fastening end piece 22nd

is trained. From the Befestigungsendstück 22 leads the Bowden cable out and forms a loop 23, which can be taken for example by a user to perform an emergency release, for example, if the electric drive has failed or there is a power failure for the electric vehicle. Thus, by pulling the Bowden cable with the aid of the loop 23, the locking element 20 moves from the locking position, in which the locking element 20 is arranged in the receptacle of the charging plug, into an unlocking position, in which the locking element 20 is located outside the receptacle of the charging plug become.

As visualized in FIG. 6, the fastening end piece 22 has a slot-shaped receptacle 24. The gap width of the slot-shaped receptacle 24 is smaller than the diameter of the Bowden cable, so that the Bowden cable can be clamped in this slot-shaped receptacle 24. The passage opening 25 serves to pass the Bowden cable.

If, for reasons of a defect, the locking device 2 has to be replaced, then only the housing 6 has to be opened. In a next step, the guide member 10 is clipped from the housing 6. Thereafter, the t-shaped connecting element 16 is released from the pin 17 and by the in

Housing 6 arranged opening led out. The diameter of the housing in the sixth arranged opening 21 is chosen so large that a passage of the t-shaped connecting element 16 is easily possible. As a result, that the t-shaped connecting element 16 is greater than the diameter of the channel 12, a drop of the guide member 10 is excluded from the Bowden cable. The T-shaped connecting element 16 abuts against the guide element 10 and is held by this. Finally, the screw connection comprising the screws 3 between the housing 6 and the charging socket 1 is released and the

Locking device 2 can be replaced. Thus, in

Advantageously, to dispense with an exchange of the entire emergency control device, which inter alia the Bowden cable, the hose 13, the guide member 10 and the attachment piece 22 and other technical

Includes components.

LIST OF REFERENCE NUMBERS

1 charging socket

2 locking device

3 screws

4 supply cables

5 wires

6 housing

7 first housing shell

8 second housing shell

9 chamber

10 guide element

1 1 Emergency unlocking actuator

12 channel

13 hose

14 first end

15 second end

16 connecting element

17 cones cylinder

carrier

Locking element opening

Fastening tail loop

slit-shaped receiving passage opening

Claims

claims

1 . Locking device (2) for a charging plug, which is arranged in a charging socket (1) arranged on a vehicle or on a charging station

can be inserted, wherein the locking device (2) has a housing (6) in which a locking element (20) is mounted, which is in a locking position with a receptacle disposed on the charging connector in operative connection to the charging plug, in particular during the charging process, to prevent them from pulling out and that

Locking element (20) with a outside of the housing (20) in a channel (12) of a guide element (10) guided

Emergency unlocking actuating element (11) is coupled, which is led out through an opening (21) arranged on the housing (6), wherein upon actuation of the emergency unlocking actuating element (1)

Locking element (20) from its locking position into a

Unlocking position can be brought, in which the locking element (20) is arranged outside the receptacle of the charging plug, wherein the

Charging plug in the unlocked position from the charging socket (1) is pulled out, characterized in that the guide element (10) positive and / or non-positively releasable on a wall of the

Housing (6) is arranged.

2. locking element (2) according to claim 1, characterized in that the guide element (10) by means of a clip connection to the housing (6) is connected.

3. Locking device (2) according to claim 1 or 2, characterized

in that the guide element (10) is arranged on an outer wall of the housing (6).

4. Locking device (2) according to one of claims 1 to 3, characterized in that the guide element (10) is formed substantially U-shaped.

5. Locking device (2) according to one of claims 1 to 4, characterized in that arranged in the guide element (10)

Emergency unlocking actuator (11) at its first end (14) has a loop (23).

6. Locking device (2) according to one of claims 1 to 5, characterized in that the Notentriegelungsbetätigungselement (11) at its second end (15) with a pin (17) is connected, which with the locking element (20) within the housing ( 6) is coupled.

7. Locking device (2) according to claim 6, characterized in that the Notentriegelungsbetätigungselement (11) is releasably or non-detachably connected to the pin (17).

8. Locking device (2) according to claim 6 or 7, characterized

characterized in that the diameter of the pin (17), in particular substantially cylindrically shaped pin (17), smaller than the diameter of the housing (6) arranged opening (21) and larger than the diameter of the channel (12).

9. Locking device (2) according to one of claims 1 to 8, characterized in that the diameter of the opening (21) of the housing (6) for carrying out the Notentriegelungsbetätigungselements (11) is greater than the diameter of the channel (12).

10. Locking device (2) according to one of claims 1 to 9, characterized in that the Notentriegelungsbetätigungselements (11) is designed as a Bowden cable.