DE202017102886U1 - Adapter plug for a charging system for charging an electric vehicle - Google Patents

Abstract

Adapter plug (1) for a charging system for charging an electric vehicle (2), comprising a plug housing (10), a first plug face (11) arranged on the plug housing (10), which has a first plug portion (110, 111) and at least one on the first plug-in section (110, 111) arranged, first electrical contact element (112, 113) for electrical contacting with a first connector part (20), a second on the plug housing (10) arranged mating face (12) having a second plug portion (120) and at least one second electrical contact element (121) arranged on the second plug-in section (120) for making electrical contact with a second plug connector part (31), and an electronic device (14) arranged in or on the plug housing (10) for converting electrical control signals. an electrical current and / or an electrical voltage between the at least one first contact element (112, 113) and the a second contact element (121).

Description

The invention relates to an adapter plug for a charging system for charging an electric vehicle.

Such an adapter plug comprises a plug housing and a plug face arranged on the plug housing, which has a plug portion and at least one arranged on the plug portion, electrical contact element for electrical contacting with an associated connector part.

In a charging system for charging an electric vehicle, a charging plug connected to a charging station via a charging cable is plugged, for example, into a charging socket on an electric vehicle to thereby establish an electrical connection between the charging station and the electric vehicle and charge currents for charging To transfer batteries of the electric vehicle. In this case, a charging current can be transmitted as direct current or else as alternating current, with it being possible for large current intensities, for example greater than 200 A, possibly even greater than 350 A, to be transmitted.

There are different standards for connector parts that find use in charging systems for charging electric vehicles. These are in the international Standard IEC 62196 standardized in three parts (IEC 62196-1, IEC 62196-2 and IEC 62196-3). The standardization process for a fourth part of the Standard (IEC 62196-4) started in June 2015.

The international Standard IEC 62196-3 standardizes five different connector types, which are designed according to different standards and are neither mechanically nor electrically compatible with each other. Thus, a connector plug of a connector type can not be used on a socket of a different connector type.

Different standards are used in different countries. In Japan, for example, the so-called CHAdeMO standard is frequently used, whereas in the USA connector parts according to the CCS1 standard are used.

There is a need to improve the compatibility between connector parts of different standards so that, for example, an electric vehicle having a charging socket according to a first standard can also be charged via a charging station comprising a charging plug according to a second, different standard.

Conventionally, it has been provided, for example, to design charging stations with a plurality of charging cables and different charging plugs arranged thereon. However, this is cumbersome and expensive.

At one of the DE 10 2013 007 330 A1 known AC connector is a line via a bayonet lock on a line-side recording set. On an infrastructure-side recording a country-specific connection element can be arranged to connect the AC plug with a charging station and charge it an electric vehicle.

From the EP 2 555 340 B1 a charging plug is known, which can be equipped with different essays with different mating sections arranged thereon.

The object of the present invention is to provide an adapter plug which makes it possible to connect an existing, standardized charging plug to a charging socket, which is optionally standardized according to another standard.

This object is achieved by an article having the features of claim 1.

• - ein Steckergehäuse,
• - ein erstes an dem Steckergehäuse angeordnetes Steckgesicht, das einen ersten Steckabschnitt und zumindest ein an dem ersten Steckabschnitt angeordnetes, erstes elektrisches Kontaktelement zum elektrischen Kontaktieren mit einem ersten Steckverbinderteil aufweist,
• - ein zweites an dem Steckergehäuse angeordnetes Steckgesicht, das einen zweiten Steckabschnitt und zumindest ein an dem zweiten Steckabschnitt angeordnetes, zweites elektrisches Kontaktelement zum elektrischen Kontaktieren mit einem zweiten Steckverbinderteil aufweist, und
• - eine in oder an dem Steckergehäuse angeordnete Elektronikeinrichtung zur Konvertierung elektrischer Steuersignale, eines elektrischen Stroms und/oder einer elektrischen Spannung zwischen dem zumindest einen ersten Kontaktelement und dem zumindest einen zweiten Kontaktelement.

Accordingly, an adapter plug for a charging system for charging an electric vehicle includes

• a plug housing,
• a first plug-in face arranged on the plug housing, which has a first plug-in section and at least one first electrical contact element arranged on the first plug-in section for making electrical contact with a first plug connector part,
• - A second arranged on the plug housing mating face, which has a second plug portion and at least one disposed on the second plug portion, the second electrical contact element for electrically contacting with a second connector part, and
• - An arranged in or on the connector housing electronic device for converting electrical control signals, an electrical current and / or an electrical voltage between the at least one first contact element and the at least one second contact element.

Accordingly, two mating faces are arranged on the plug housing. This allows the adapter plug, for example, between a charging connector on a charging cable and a charging socket to be mounted on an electric vehicle to provide in this way an adapter between the charging plug and the charging socket. The charging plug can in this case be plugged into one of the plug-in faces, which can be configured for this purpose, for example, as a socket (also referred to as an inlet). The adapter plug can be inserted in this case with its other mating face, which is designed as a plug (connector), in a charging socket on the side of the electric vehicle.

In this case, the first mating face may be designed according to a first connector type and the second mating face may be designed according to a second connector type different from the first connector type. Under that a mating face is designed according to a connector type, it should be understood in the present case that the mating face is standardized by a defined standard, for example, the international standard IEC 62196 and is therefore standardized.

It can be provided that the different mating faces correspond to different standards. In this case, the adapter plug thus enables, for example, the connection of a charging plug according to a first standard to one of the mating faces and the connection of the adapter plug with the other mating face to a charging socket according to another standard.

However, the first mating face and the second mating face are not necessarily designed according to different standards. The mating faces can also be designed according to the same standard, but on the one hand be realized, on the one hand, as a socket (inlet) and, on the other hand, as a plug (connector). With the same standards of connector and socket, no signal adaptation is necessary, but signals can be passed through easily. For example, by providing an adapter plug with mating faces of the same standard, a test or test device could be provided to access the leads in the adapter.

The first plug-in section of the first plug-in face can preferably be connected to the first plug connector part along a first plug-in direction, while the second plug-in section of the second plug-in face can be connected to the second plug connector part along a second plug-in direction. In one embodiment, in this case, the first plug-in direction and the second plug-in direction differ from one another and, in particular, are directed at an angle to one another. This may facilitate the handling of the adapter plug, because a charging cable may go off in a different direction from the connector housing when plugged into one of the mating faces charging plug, in which the adapter plug is plugged into an associated charging socket on pages such as an electric vehicle.

In one embodiment, at least one of the mating faces has two plug-in sections, each with at least one electrical contact element arranged thereon. Such a mating face comprising two plug-in sections can for example be plugged into a suitably configured charging socket, for example a charging socket according to the CCS1 standard customary in the USA.

Preferably, the at least one first contact element and the at least one second contact element are electrically connected to one another via an electrical connection device. The contact elements of the mating faces are thus electrically connected to each other, so that currents between the contact elements of the mating faces can be transmitted. In this case, the connection can be produced via the electronic device, which can be configured, for example, to convert control signals from one standard to another standard or to adapt electrical currents and / or electrical voltages such that they correspond to the specifications of the standards.

In one embodiment, the electronic device has an electronics housing, in which an electronic circuit board is arranged. The electronic board may, for example, have electronic components that perform the conversion function of the electronic device. The electronic circuit board may be connected, for example via corresponding contact elements with first contact elements of the first mating face and / or second contact elements of the second mating face.

Preferably, the electronics housing is sealed and thereby protects the electronic board from moisture. The electronics housing can in this case be enclosed in the connector housing, so that an additional protection for the electronics board within the connector housing is provided via the electronics housing. All electrical components, in particular electrical lines and contacts, are preferably moisture-tightly encapsulated in the connector housing, so that short circuits within the connector housing are avoided if moisture should penetrate into the connector housing.

In one embodiment, the plug housing, for example, a handle for touching the adapter plug by a user. At the handle, a user can attack the adapter plug to this, if necessary, already at one plug-in connector connected charging plug, to be connected to a charging socket, for example, to an electric vehicle.

• 1 eine schematische Ansicht eines Ladesystems zum Aufladen eines Elektrofahrzeugs;
• 2 eine Ansicht eines Adaptersteckers zum Verbinden eines Ladesteckers eines ersten Steckverbindertyps mit einer Ladebuchse eines anderen Steckverbindertyps;
• 3 eine andere Ansicht des Adaptersteckers;
• 4 eine wiederum andere Ansicht des Adaptersteckers;
• 5 eine teilweise freigeschnittene Ansicht des Adaptersteckers;
• 6 eine Ansicht einer inneren Baugruppe des Adaptersteckers, mit einem ersten Steckgesicht und einem zweiten Steckgesicht;
• 7 eine andere Ansicht der Baugruppe gemäß 6;
• 8 eine gesonderte Ansicht eines ersten Steckgesichts des Adaptersteckers;
• 9 eine rückseitige Ansicht des das erste Steckgesicht verwirklichenden Gehäuseteils;
• 10 eine gesonderte Ansicht des anderen, zweiten Steckgesichts des Adaptersteckers;
• 11 eine rückseitige Ansicht des das zweite Steckgesicht verwirklichenden Gehäuseteils;
• 12 eine Ansicht einer Elektronikeinrichtung des Adaptersteckers;
• 13 eine andere Ansicht der Elektronikeinrichtung;
• 14 eine Explosionsansicht der Elektronikeinrichtung; und
• 15 eine gesonderte Ansicht einer Elektronikplatine der Elektronikeinrichtung.

The idea underlying the invention will be explained in more detail with reference to the embodiments illustrated in the figures. Show it:

• 1 a schematic view of a charging system for charging an electric vehicle;
• 2 a view of an adapter plug for connecting a charging connector of a first connector type with a charging socket of a different connector type;
• 3 another view of the adapter plug;
• 4 another turn of the adapter plug;
• 5 a partially cutaway view of the adapter plug;
• 6 a view of an inner assembly of the adapter plug, with a first mating face and a second mating face;
• 7 another view of the assembly according to 6 ;
• 8th a separate view of a first mating face of the adapter plug;
• 9 a rear view of the first mating face realizing housing part;
• 10 a separate view of the other, second mating face of the adapter plug;
• 11 a rear view of the second mating face realizing housing part;
• 12 a view of an electronic device of the adapter plug;
• 13 another view of the electronics device;
• 14 an exploded view of the electronic device; and
• 15 a separate view of an electronic board of the electronic device.

1 shows a schematic view of a charging system for charging an electric vehicle 2, in which a charging station 3 via a charging cable 30 and a connector part disposed thereon 31 in the form of a charging plug with a charging socket 20 on the part of the electric vehicle 2 to connect. Is this the electric vehicle 2 via the charging cable 30 to the charging station 3 Connected, electrical currents can be used to recharge batteries of the electric vehicle 2 be transmitted.

Basically, DC currents and AC currents can be used to transmit charging currents. In addition, there are different standards that define different modes of charging and also different standards for connector parts to make the connection between a charging station 3 and an electric vehicle 2 pretend.

In different regions of the world today different connector parts are used according to different standards, with connector parts according to different standards generally not compatible with each other, neither electrically in the transmission of electrical currents for charging and control signals to control a charging nor mechanically in the structural Design of the mating faces for producing the plug-in, mechanical connection.

To a connector part 31 in the form of a charging plug and a connector part 20 in the form of a charging socket, which are designed according to different standards to be able to connect to each other, is proposed in the present case, an adapter plug 1 to use, as in one embodiment in 2 to 15 is shown. Such an adapter plug 1 can be between the connector part 31 in the form of the charging plug on the side of the charging cable 30 and the connector part 20 in the form of the charging socket on the side of the electric vehicle 2 be arranged and is configured to produce an electrical and mechanical connection between the connector parts 20, 31.

The in 2 to 15 Concretely illustrated adapter plug 1 is used to connect a connector part 31, which is formed according to the so-called CHAdeMO standard (as is common, for example, in Japan), with a connector part 20 which is designed according to the CCS1 standard (as is customary in the USA, for example). The adapter plug 1 has a plug housing for this purpose 10 on, on the two plug-in faces 11, 12 are arranged, which in their structural and electrical configuration in each case according to the standard of the associated connector part 20 . 31 are formed, with which the mating face 11 . 12 to connect.

A first mating face 11 here has two plug sections 110 . 111 on, which are formed on the type of frame and contact elements 112 . 113 framing surround. With the plug-in sections 110 . 111 For example, the mating face 11 designed as a plug (connector) can be inserted into an associated mating face of the plug connector part 20 designed as a charging socket on the side of the electric vehicle 2 along a plug-in direction E1 be plugged in, so that the contact elements 112 . 113 of the mating face 11 with associated contact elements on the side of the mating face of the connector part 20 contact electrically.

In the illustrated embodiment, the contact elements 113 at the lower plug-in section 111 of the mating face 11 Load contacts for transmitting a load current in the form of a direct current. The contact elements 112 at the upper plug portion 110 of the mating face 11 On the one hand, control contacts for transmitting control signals and, on the other hand, a grounding contact for transmitting a ground potential.

The other, second mating face 12 has a (single) plug-in section 120 on, which has a cylindrical shape and contact elements 121 framing surrounds, as for example 4 is apparent. In this designed as a socket (Inlet) plug portion 120 can - along a direction of insertion E2 , oblique to the direction of insertion E1 is directed - the connector part 31 be plugged in the form of the charging plug, so that the mating face 12 in engagement with an associated mating face on the side of the connector part 31 in the form of the charging plug and the electrical contact elements 121 electrically connected to contact elements of the connector part 31 contact in the form of the charging plug.

In addition to the contact elements 121 , which are used to transmit a load current in the form of a direct current, are on the second mating face 12 control contacts 124 (please refer 4 and 10 ), which are used to transmit control signals. Overall, the second mating face 12 seven control contacts 124 on.

How out 2 it can be seen is on the connector housing 10 a handle 13 arranged over which a user on the connector housing 10 can attack to the adapter plug 1 - if necessary with charging cable arranged on it 3 - To handle and, for example, with the first mating face 11 in the associated connector part 20 on the part of the electric vehicle 2 insert.

How out 5 to 7 is apparent, is the first mating face 11 on a housing part 114 formed with the connector housing 10 connected is. The second mating face 12 is in contrast to a housing part 122 formed, which is connected at the rear with the connector housing 10. About contact points 115 . 123 (please refer 9 and 11 ) Are electrical lines for the realization of an electrical connection device 15 with the contact elements 121 on the part of the mating face 12 on the one hand and with the contact elements 113 at the lower plug-in section 111 the mating face 11 on the other hand connected so that the contact elements 121 the mating face 12 with at least one group of contact elements 113 the other mating face 11 are electrically connected.

About the connection device 15 , which is realized by electrical lines, are the contact elements 113 on the first mating face 11 and the contact elements 121 on the second mating face 12 electrically connected to each other, so that a load current between these load contacts 113 . 121 can be transferred.

While the second mating face 12 is designed according to the CHAdeMO standard, is the first mating face 11 implemented according to the CCS1 standard. About the charging cable 3 a direct current is transmitted via the contact elements 121 the second mating face 12 fed and towards the contact elements 113 of the plug-in section 111 of the first mating face 11 and over to the connector part 20 is transmitted.

In the connector housing 10 is an electronic device 14 enclosed, the electronics housing 140 and an electronics board enclosed therein 143 has, like this 12 to 15 is apparent. The electronics housing 140 is composed of a housing body 142 and a housing cover 141 , which are attached to each other, so that a closed unit is created, which is sealed against moisture and the electronics board 143 protected against moisture. About the electronics housing 140 will the electronics board 143 thus encapsulated within the connector housing 10, so that the electronics board 143 can not come into contact with the plug housing 10 penetrating moisture.

On the electronics board 143 on which, for example, a plurality of electronic components are arranged for performing conversion functions, contact elements 144 are arranged which pass through the housing body 142 protrude through. The housing body 142 is in this case for example via a rubber seal or the like at the exit point of the contact elements 144 sealed so that at the location of the contact elements 144 no moisture in the interior of the electronics housing 140 can penetrate.

About the contact elements 144 can the electronics device 14 For example, receive control signals. The electronic device 14 is this with the control contacts 112 at the top plug section 110 of the first mating face 11 and also with the control contacts 124 on the second mating face 12 electrically connected, so that control signals to the electronic device 14 transferred and can be processed in the electronics device 14. Rear of the housing part 122 of the second mating face 12 For this example, connection points 125 to connect the control contacts 124 of the second mating face 12 arranged with the electronic device 14 (see 11 ). Analogous are also connection points on the housing part 114 for contacting the control contacts 112 of the first mating face 11 with the electronics 14 intended.

The electronic device 14 has, for example, a microcontroller which electronically converts the control signals, converts in their format and processes control signals from the one mating face 12 towards the other mating face 11 can be transmitted and processed in the other standard and evaluated. Control signals, for example via the control contacts 124 are received, are thus in the electronic device 14 so implemented in the format of the other mating face 11 associated standards that they can be processed on the side of the mating face 11, ie in the illustrated embodiment, the vehicle side. Conversely, in the electronics device 14 Control signals via the control contacts 112 of the first mating face 11 be obtained, so implemented and converted in their format that they have the tax contacts 124 of the second mating face 12 in the second mating face 12 assigned standard can be transmitted.

The microcontroller is on the in 15 illustrated electronic board 143 arranged and with the contact elements 144 connected.

The idea underlying the invention is not limited to the embodiments described above, but in principle can also be implemented in a completely different manner.

By means of an adapter plug of the type described here connector parts of very different standards can be connected to each other. This is not restricted to the standards mentioned (CHAdeMO and CCS1). In principle, connector parts of any standard can be connected to one another via a correspondingly adapted adapter plug.

It is also conceivable that connector parts of the same connector type, ie the same standards, can be connected to one another via an adapter plug. In this case, for example, the adapter plug may be used for test purposes to access electrical connections to test for charging. In this case, for example, dedicated connections for connecting test lines or the like may be provided on the connector housing.

LIST OF REFERENCE NUMBERS

1

adapter plug

10

plug housing

11

mating face

110, 111

plug-in section

112, 113

contact elements

114

housing part

115

contact points

12

mating face

120

plug-in section

121

contact elements

122

housing part

123

contact points

124

control contacts

125

interchanges

13

Handle

14

electronic device

140

electronics housing

141

housing cover

142

housing body

143

electronic board

144

contact elements

15

Electrical connection device

2

electric vehicle

20

Connector part (charging socket)

3

charging station

30

charge cable

31

Connector part (charging connector)

E1, E2

plug-in direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 102013007330 A1 [0009]
• EP 2555340 B1 [0010]

Cited non-patent literature

• Standard IEC 62196 [0004]
• Standard (IEC 62196-4) [0004]
• Standard IEC 62196-3 [0005]

Claims (11)

Adapter plug (1) for a charging system for charging an electric vehicle (2), comprising a plug housing (10), a first plug face (11) arranged on the plug housing (10), which has a first plug portion (110, 111) and at least one on the first plug-in section (110, 111) arranged first electrical contact element (112, 113) for electrical contacting with a first connector part (20), a second on the plug housing (10) arranged mating face (12) having a second plug portion (120) and at least one second electrical contact element (121) arranged on the second plug-in section (120) for electrical contacting with a second plug connector part (31), and an electronic device (14) arranged in or on the plug housing (10) for converting electrical control signals, an electrical current and / or an electrical voltage between the at least one first contact element (112, 113) and the a second contact element (121). Adapter plug (1) to Claim 1 , characterized in that the first mating face (11) according to a first connector type and the second mating face (12) are formed according to a different from the first connector type, the second connector type. Adapter plug (1) to Claim 2 characterized in that the first connector type and the second connector type are each formed according to a connector standard. Adapter plug (1) according to one of Claims 1 to 3 , characterized in that the first plug portion (110, 111) of the first mating face (11) along a first plugging direction (E1) mating with the first connector part (20) and the second plug portion (120) of the second mating face (12) along a second Plug-in direction (E2) plugged with the second connector part (31) is connectable. Adapter plug (1) to Claim 4 , characterized in that the first plug-in direction (E1) and the second plug-in direction (E2) differ from each other, in particular are directed obliquely to each other. Adapter plug (1) according to one of the preceding claims, characterized in that at least one of the plug faces (11, 12) has two plug portions (110, 111, 120) each having at least one electrical contact element (112, 113, 121) arranged thereon. Adapter plug (1) according to one of the preceding claims, characterized in that the at least one first contact element (112, 113) and the at least one second contact element (121) via an electrical connection means (15) are electrically connected together. Adapter plug (1) according to one of the preceding claims, characterized in that the electronic device (14) has an electronics housing (140) in which an electronic circuit board (143) is arranged. Adapter plug (1) to Claim 8 , characterized in that the electronics housing (140) for a moisture-proof bordering of the electronic board (143) is sealed. Adapter plug (1) to Claim 8 or 9 , characterized in that the electronics housing (140) in the connector housing (10) is enclosed. Adapter plug (1) according to one of the preceding claims, characterized in that the plug housing (10) has a handle (13) for gripping the adapter plug (1) by a user.

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