DE202015104315U1 - Connector part with a drainage - Google Patents

Abstract

Connector part (1) for connecting to an associated mating connector part (2), comprising - a housing part (10) having a plug portion (100, 101) and a plurality of in the plug portion (100, 101) arranged contact openings (131A-131G) each having a contact element arranged therein (13A-13G, 14A, 14B), wherein the plug portion (100, 101) along a plug-in direction (E) with a mating connector part (2) is plugged into connection and a circumferential to the plugging direction (E) characterized in that the plug portion (100, 101) has a plurality of drainage openings (130A-130G, 140A, 140B) each associated with a contact opening (131A-131G, 141A, 141B) and extending from the associated contact opening (131A-131G, 141A, 141B) to the lateral surface (106) extend to liquid from the associated contact opening (131A-131G, 141A, 141B) to the lateral surface (106) to l wherein at least one of the drainage openings (130A-130G, 140A, 140B) is along a first plane (E1) and at least one second drainage opening (130A-130G, 140A, 140B) along a first plane (E1) along the plugging direction (E ), second plane (E2) is extended.

Description

The invention relates to a connector part for connecting to an associated mating connector part according to the preamble of claim 1.

Such a connector part comprises a housing part which has a plug-in section and a plurality of contact openings arranged in the plug-in section, each having a contact element arranged therein. The plug-in portion can be placed along a plug-in direction plugged with a mating connector part in connection and has a circumferentially extending around the insertion direction shell surface.

Such connector parts serve e.g. for transferring a charging current and find use, for example, in electric vehicles, charging stations for charging electric vehicles or charging cables for connecting an electric vehicle to a charging station.

Because an example arranged on a vehicle connector part in the form of a charging socket into which a charging plug of a charging cable can be inserted, is used in the ordinary use of the vehicle in the open and a sealing of the connector part to the outside difficult, if not impossible, for example in rainy weather moisture in the connector part, in particular in the contact openings penetrate. For this reason, it is necessary to ensure that water reaching the contact openings can also drain away again, so that contacts arranged in the contact openings can be reliably and reliably contacted with contacts of a complementary mating connector part. In particular, in the event of frost, water standing in a contact opening may optionally freeze, which may make it impossible to connect a complementary mating connector part, and thus a charging process.

Conventionally, it is therefore provided in such connector parts, at a contact opening to provide drainage to a plane located in the insertion direction behind the contact opening level, as for example in the WO 2011/104 609 A1 is described. However, this has the disadvantage that viewed in the insertion direction behind the contact openings, a space must be provided, can be dehydrated into it, which is also sealed in addition.

There is therefore a need for connector parts that allow drainage in other ways.

At one of the EP 2 573 880 A1 known connector part, a drainage system is provided with drainage channels, which are adapted to direct water towards a drain line.

Other connector parts that provide drainage, for example, from the DE 694 28 636 T2 and the EP 0 634 818 B1 known.

Object of the present invention is to provide a connector part available that allows drainage in a simple, inexpensive to produce way.

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

Accordingly, the plug-in section has a plurality of drainage openings, which are each assigned to a contact opening and extend from the assigned contact opening to the jacket surface in order to guide liquid from the associated contact opening to the jacket surface, wherein at least one of the drainage openings along a first plane and at least one second Drainage opening along a first plane along the insertion direction offset, second plane is extended.

The present invention is based on the idea of providing drainage openings on the plug-in section, which can guide liquid penetrating into the contact openings of the plug-in section toward the peripheral jacket surface of the plug-in section. The first plane and the second plane can advantageously be extended transversely to the direction of insertion. The first plane and the second plane are in this case preferably parallel to each other. It is also conceivable and possible in this connection that the first plane and the second plane extend obliquely to the direction of insertion. It is also conceivable that the first plane and the second plane are not exactly parallel to each other.

Due to the fact that the drainage openings of different contact openings do not run along the same plane but in different planes, the housing part can be produced simply and cost-effectively, for example by means of plastic injection molding. Thus, in particular in the case of a multiplicity of contact openings arranged on a plug-in section, the drainage openings can be distributed to different levels for a multiplicity of contact elements, which makes possible a one-piece production of the housing part by plastic injection molding, for example using slides.

The drainage is preferably carried out in a gravity-driven manner. This opens the a contact opening associated with the drain opening the contact opening down - reference is made to a proper arrangement and use of the connector part, for example on a vehicle - so that entering the contact opening moisture, such as rainwater, driven by gravity through the drain hole from the contact opening can flow out. In this case, the drainage opening is preferably arranged at the lowest point of the contact opening, viewed along the direction of the gravitational force into which gravity acts, so that liquid flows out of the contact opening into the drainage opening due to gravity and is discharged.

On the connector part, a diaphragm member may be provided which has an opening in which the plug portion of the housing part is arranged, wherein the opening is bounded by an inner wall, which faces the lateral surface of the plug portion at least partially at a radial distance and with the lateral surface between the lateral surface of the plug portion and the inner wall of the diaphragm portion located, formed around the plug portion gap. The panel serves as a panel and extends along a circumferential direction about the insertion direction around the plug portion of the housing part around. The space is bordered between the outer surface of the plug portion and the inner wall of the panel and forms the space into which a plug contour of a complementary mating connector part for connection to the connector part can be inserted.

The drainage openings on the plug-in section thus effect a drainage of moisture from the contact openings in the intermediate space formed between the plug-in section of the housing part and the panel part. The fact that a drainage in the space between the plug portion and the wall of the panel part, can be dispensed with the provision of an additional drainage level behind the normatively predetermined mating plane of the connector part. The intermediate space formed between the plug portion and the panel portion can be sealed in a comparatively simple manner, without the risk of overvoltages on a seal used for this purpose.

The plug-in portion has a plurality of contact openings with contacts arranged thereon, wherein advantageously each contact opening is associated with exactly one drainage opening. The contact openings in this case extend along the plug-in direction, so that, for example, contact pins of another plug connector part can be inserted in the plugging direction into the contact openings. The drainage openings preferably extend transversely to the direction of insertion and thus connect the contact openings with the space surrounding the insertion section, so that moisture can be discharged out of the contact openings to the outside.

In a specific embodiment of a connector part, the housing part has a first plug-in section and a second plug-in section, which are spaced apart from one another transversely to the plug-in direction. In contrast, the panel part has a first wall, which forms a first intermediate space with the first plug-in section, and a second wall, which forms a second intermediate space with the second plug-in section. Such a connector part, for example, realize a so-called CCS vehicle charging plug, which is designed both for the transmission of an alternating current and for transmitting a direct current for charging a vehicle at different charging stations. In this case, for example, load contacts for the transmission of an alternating current can be arranged on the first plug-in section, while the second plug-in section has load contacts for the transmission of a direct current. The intermediate spaces formed at the different plug-in portions may be in fluid communication with each other, wherein, for example, the first plug portion, viewed along the direction of gravity, is arranged above the second plug portion, so that liquid from the first intermediate space associated with the first plug portion via an opening between the spaces the second intermediate space associated with the second plug-in section can flow in.

The housing part may, for example, have a base on which the at least one plug-in section is arranged. The panel is in this case at the base and is e.g. sealed by a sealing element against the base of the housing part. The mating portion rises from the base and projects, for example, cylindrically from the base (the mating portion does not necessarily have a circular cross-section), and the wall of the panel adjoins the base and extends around the mating portion. About the sealing element, a simple seal of the panel member relative to the base of the housing part is possible, so that moisture from the gap formed within the panel can not get into a drying room on the side facing away from the panel part of the base.

In order to allow a drainage of moisture from the connector part, a drain opening is preferably provided on the base, which - as viewed along the direction of gravity - is preferably arranged at a location of the base arranged below the plug section, thus Due to gravity, liquid can flow into the discharge opening and above it into a discharge line, which may be connected to the discharge opening. In particular, a gap formed between the plug-in section and the panel part is thus drained via the drainage opening so that no water can collect in the intermediate space which could freeze if necessary.

The drain opening is advantageously formed in the base of the housing part, so that a liquid can be discharged via the base and a possibly subsequent drain line. It is also conceivable and possible, however, to mold a discharge opening into the wall of the panel part, for example, so that dewatering of the intermediate space can take place through the wall of the panel part.

The drainage opening associated with a contact opening extends from the contact opening to the circumferential surface of the plug section which extends circumferentially around the plugging direction. The drainage is thus carried out over the lateral surface of the plug-in portion and thus e.g. in an intermediate space which is formed between the plug portion and serving as a diaphragm panel. In order to enable a simple production of the connector part, the housing part and the diaphragm part are preferably made as separate, each one-piece moldings, for example by means of plastic injection molding. Characterized in that the housing part and the panel part are made separately from each other, the dewatering openings associated with a plug-in section can be readily molded into the plug-in section, resulting in a simple mold release of the housing part when manufactured by means of plastic injection molding.

The drainage openings can be formed, for example, by so-called slide during plastic injection molding transversely to the direction of insertion into the plug-in section. After the production of the moldings, the housing part and the diaphragm part are then attached to each other, wherein a transition between the housing part and the diaphragm part moisture-tight, for. can be sealed by a suitable sealing element.

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

1 an exploded perspective view of a connector part;

2 a front view of the connector part;

3 a side view of the connector part;

4 a front view of a housing part of the connector part;

5A . 5B Side views of the housing part with drawn cutting planes;

6A a sectional view taken along the line AA according to 5A ; and

6B a sectional view taken along the line BB according to 5B ,

1 to 6A . 6B show an embodiment of a connector part 1 , which may be arranged for example as a charging socket on a vehicle or at a charging station and for charging an electrically driven vehicle (also referred to as electric vehicle) is used.

As in 3 illustrated, the connector part 1 with an associated mating connector part 2 be connected by the connector part 1 with plug-in sections 100 . 101 in a plug-in direction E with associated plug-in sections 20 . 21 of the mating connector part 2 is brought into engagement. The plug sections 100 . 101 can in this case in intervention openings 200 . 210 the plug sections 20 . 21 of the mating connector part 2 immerse, so that in a connection position, the mating connector part 1 with its plugins 100 . 101 to the mating section 20 . 21 of the mating connector part 2 is arranged.

In the sections 100 . 101 are axially along the insertion direction E extended, cylindrical contact openings 131A - 131G . 141A . 141B (please refer 2 ), in each of which a contact element 13A - 13G . 14A . 14B is arranged. In the contact openings 131A - 131G . 141A . 141B can assigned mating contact elements on the plug sections 20 . 21 the mating connector part 2 be inserted to contact with the electrical contact elements 13A - 13G . 14A . 14B to contact electrically.

The connector part 1 of the illustrated embodiment is configured as a so-called CCS vehicle charging plug, via which either a charging current in the form of an alternating current or in the form of a direct current can be transmitted (which is already pointed out at this point that the present invention does not apply to such CCS vehicle charging plug is limited).

In the illustrated embodiment, at the (as viewed in the direction of gravity G) upper plug portion 100 seven contact elements 13A - 13G arranged, via which a charging current in the form of a multi-phase alternating current can be transmitted. The central contact element 13A (please refer 2 ) represents here a neutral conductor. The contact elements 13B - 13E form load contacts for the transmission of the actual charging current. The contact element 13F realizes a so-called pilot contact via which control signals can be transmitted. And the contact element 13G realizes a so-called proximity contact.

The (in the direction of gravity G) lower plug-in section 101 In contrast, has two juxtaposed contact elements 14A . 14B via which a charging current in the form of a direct current can be transmitted.

As seen from the perspective exploded view according to 1 can be seen, are the plug sections 100 . 101 at a base 103 a housing part 10 arranged and are in the direction of insertion E from the base 103 in front. The upper plug section 100 is here at a raised section 102 arranged and over the raised section 102 with the base 103 connected.

On the housing part 10 are two panel parts 11 . 12 arranged, each one through two opening sections 111 . 112 respectively. 121 . 122 have formed opening in the - when mounted connector part 1 - the plug-in sections 100 . 101 to come to rest.

The upper plug section 100 is here the upper opening sections 111 . 121 the aperture parts 11 . 12 assigned while the lower mating section 101 the lower opening sections 112 . 122 the aperture parts 11 . 12 assigned.

The plug sections 100 . 101 are each circumferentially from a lateral surface 106 . 107 surround. These lateral surfaces 106 . 107 are located at mounted connector part 1 in opposition to inner walls 113 . 114 . 123 . 124 the openings of the panel parts 11 . 12 and are here to these inner walls 113 . 114 . 123 . 124 spaced radially (with respect to the insertion direction E), so that spaces Z1, Z2 between the plug sections 100 . 101 and the panel parts 11 . 12 result (see 2 ).

The shape of the plug-in sections 100 . 101 and the one together with the panel parts 11 . 12 formed intermediate spaces Z1, Z2 is in this case such that the connector part 1 with an associated mating connector part 2 can be engaged, as in 3 is illustrated schematically.

The connector part 1 can be arranged for example as a charging socket on a vehicle. Because a vehicle can generally be exposed to moisture and thus moisture in the area of the plug sections 100 . 101 can reach, have the contact openings 131A - 131G . 141A . 141B one drainage opening each 130A - 130G . 140A . 140B on, over the moisture from the contact openings 131A - 131G . 141A . 141B can be derived and introduced into the spaces Z1, Z2. As in 2 Using the flow F illustrates this moisture around the mating sections 100 . 101 flow around and in the direction of gravity G towards a drain opening 104 in the base 102 be directed. This drainage hole 104 stands with a drain 105 in fluid communication, to which a drain line can be connected, so that moisture from the area of the connector part 1 can drain away.

For example, from the sectional view according to 6A and 6B As can be seen, the drainage openings 130A - 130G . 140A . 140B each shaped so that they have the associated contact openings 131A - 131G . 141A . 141B In the direction of gravity G, open downwards so that moisture is gravity-driven out of the contact openings 131A - 131G . 141A . 141B is derived. (This refers to the intended arrangement of the connector part 1 for example, as a charging socket on a vehicle).

As further from the sectional view according to 6A and 6B Obviously, open the drainage holes 130A - 130G . 140A . 140B one associated contact opening each 131A - 131G . 141A . 141B to the outer, circumferential lateral surface 106 . 107 of the associated plug-in section 100 . 101 , The drainage holes 130A - 130G . 140A . 140B are transverse to the direction of insertion E between the associated contact opening 131A - 131G . 141A . 141B and the lateral surface 106 . 107 extends.

The drainage holes 130A - 130G the first, upper plug-in section 100 extend in the illustrated embodiment in mutually parallel planes E1, E2. So they run the load contacts 13B - 13E associated drainage openings 130B - 130E in the plane E1, shown in 6A , The other contact elements 13A . 13F . 13G associated drainage openings 130A . 130F . 130G on the other hand, in a second plane E2 offset from this first plane E1, shown in FIG 6B ,

Including that one drainage hole 130A - 130G runs in a plane E1, E2, it is to be understood here that the drainage opening 130A - 130G along the plane E1, E2 extends. The drainage opening 130A - 130G Of course, it has a (small) height (measured along the plug-in direction E), but is substantially elongated in its shape in its associated plane E1, E2.

How out 5A and 5B As can be seen, the second level E1 is closer to the base 103 located. The contact openings 131A - 131G For example, each extends only to the bottom of the associated drainage opening 130A - 130G at the respective level E1, E2, so that the contact openings 131A - 131G the different contact elements 13A - 13G different depths, measured along the insertion direction E, may have.

Because the drainage holes 130A - 130G of the upper plug-in section 100 Thus, in different planes E1, E2 run, is possible, despite the comparatively large number of contacts on the upper plug-in section 100 the housing part 10 as a one-piece plastic molded part, for example by means of plastic injection molding using slides produce. Every drainage opening 130A - 130G . 140A . 140B can by using a slider in the respective plug section 100 . 101 be formed so that a comparatively simple manufacturability by means of plastic injection molding results.

The planes E1, E2 are each transverse to the insertion direction E, but offset along the insertion direction E to each other. In particular, the drainage openings overlap 130A - 130G the different levels E1, E2, viewed along the insertion direction E, not with each other, so that the drainage holes 130A - 130G the different planes E1, E2 are spatially separated from each other and moisture is not from a contact opening 131A - 131G into another contact opening 131A - 131G can flow.

The idea underlying the invention is not limited to the above-described embodiments, but can in principle be realized even in completely different types of embodiments.

In particular, the connector part may also have only a single plug-in portion and be designed, for example, exclusively for transmitting a charging current in the form of a direct current or an alternating current.

In principle, it is also conceivable that the planes are not exactly transverse to the direction of insertion, but are directed, for example, obliquely to the direction of insertion. It is also conceivable and possible that the planes do not run exactly parallel to each other.

LIST OF REFERENCE NUMBERS

1

 connector part

10

 housing part

100, 101

 plug-in section

102

 Sublime section

103

 Base

104

 drain opening

105

 outflow

106, 107

 lateral surface

11

 visor part

110

 body

111, 112

 opening section

12

 visor part

120

 body

121, 122

 opening section

13, 14

 contact elements

13A-13G, 14A, 14B

 contact elements

130A-130G, 140A, 140B

 drainage opening

131A-131G, 141A, 141B

 contact opening

2

 Mating connector part

20, 21

 plug-in section

200, 210

 insertion

e

 plug-in direction

E1, E2

 level

F

 River

G

 The direction of gravity

Z1, Z2

 gap

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

• WO 2011/104609 A1 [0005]
• EP 2573880 A1 [0007]
• DE 69428636 T2 [0008]
• EP 0634818 B1 [0008]

Claims (11)

Connector part ( 1 ) for connecting to an associated mating connector part ( 2 ), with - a housing part ( 10 ), which has a plug-in section ( 100 . 101 ) and a plurality of in the plug portion ( 100 . 101 ) arranged contact openings ( 131A - 131G ) each having a contact element arranged therein ( 13A - 13G . 14A . 14B ), wherein the plug portion ( 100 . 101 ) along a direction of insertion (E) with a mating connector part ( 2 ) can be brought into connection and a circumferential extent around the plug-in direction (E) extending lateral surface ( 106 ), characterized in that the plug portion ( 100 . 101 ) a plurality of drainage openings ( 130A - 130G . 140A . 140B ) each having a contact opening ( 131A - 131G . 141A . 141B ) are assigned and from the associated contact opening ( 131A - 131G . 141A . 141B ) to the lateral surface ( 106 ) to remove liquid from the associated contact opening ( 131A - 131G . 141A . 141B ) to the lateral surface ( 106 ), wherein at least one of the drainage openings ( 130A - 130G . 140A . 140B ) along a first plane (E1) and at least one second drainage opening (E1) 130A - 130G . 140A . 140B ) is extended along a first plane (E1) along the plugging direction (E) offset second plane (E2). Connector part ( 1 ) according to claim 1, characterized in that the first plane (E1) and the second plane (E2) extending transversely to the direction of insertion (S). Connector part ( 1 ) according to claim 1 or 2, characterized in that the first plane (E1) and the second plane (E2) are parallel to each other. Connector part according to one of claims 1 to 3, characterized in that each drainage opening ( 130A - 130G . 140A . 140B ), with proper arrangement and use of the connector part ( 1 ), the contact opening assigned to it ( 131A - 131G . 141A . 141B ) viewed along a direction of gravity (G) opens downward. Connector part ( 1 ) according to one of the preceding claims, characterized by a cover part ( 11 . 12 ), which has an opening ( 111 . 112 . 121 . 122 ), in which the plug portion ( 10 . 101 ) is arranged, wherein the opening ( 111 . 112 . 121 . 122 ) by an inner wall ( 113 . 114 . 123 . 124 ) is limited, the lateral surface ( 106 ) of the plug-in section ( 100 . 101 ) is at least partially opposite and with the lateral surface ( 106 ) one between the lateral surface ( 106 ) of the plug-in section ( 100 . 101 ) and the inner wall ( 113 . 114 . 123 . 124 ) of the panel ( 11 . 12 ) located intermediate space (Z1, Z2) forms. Connector part according to claim 5, characterized in that the housing part ( 10 ) a first plug-in section ( 100 ) and a second plug-in section ( 101 ), which are spaced transversely to the direction of insertion (S) from each other, wherein the panel part ( 11 . 12 ) a first wall ( 113 . 123 ) connected to the first plug-in section ( 100 ) forms a first intermediate space (Z1), and a second wall (Z1) 114 . 124 ) connected to the second plug-in section ( 101 ) forms a second intermediate space (Z2). Connector part according to claim 6, characterized in that the first intermediate space (Z1) and the second intermediate space (Z2) are in fluid communication. Connector part according to one of the preceding claims, characterized in that the housing part ( 4 ) One Base ( 103 ), at which the plug portion ( 100 . 101 ), the base ( 103 ) an outlet ( 104 ) for draining liquid. Connector part according to claim 8, characterized in that the outflow opening ( 104 ), with proper arrangement and use of the connector part ( 1 ), along the direction of gravity (G) below the plug portion ( 100 . 101 ) at the base ( 103 ) is arranged. Connector part according to one of the preceding claims, characterized in that the housing part ( 10 ) is manufactured as a one-piece molding. Connector part according to one of the preceding claims, characterized in that the housing part ( 10 ) is made by plastic injection molding.

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