EP3718175B1 - Connecteur enfichable et système de connecteurs enfichables pourvu d'un tel connecteur enfichable - Google Patents

Connecteur enfichable et système de connecteurs enfichables pourvu d'un tel connecteur enfichable Download PDF

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Publication number
EP3718175B1
EP3718175B1 EP18803900.2A EP18803900A EP3718175B1 EP 3718175 B1 EP3718175 B1 EP 3718175B1 EP 18803900 A EP18803900 A EP 18803900A EP 3718175 B1 EP3718175 B1 EP 3718175B1
Authority
EP
European Patent Office
Prior art keywords
contact
plug
plug connector
wall
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18803900.2A
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German (de)
English (en)
Other versions
EP3718175A1 (fr
Inventor
Long DANG BAO
Georg Wallensteiner
Markus Kroeckel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3718175A1 publication Critical patent/EP3718175A1/fr
Application granted granted Critical
Publication of EP3718175B1 publication Critical patent/EP3718175B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4361—Insertion of locking piece perpendicular to direction of contact insertion
    • H01R13/4362—Insertion of locking piece perpendicular to direction of contact insertion comprising a temporary and a final locking position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5227—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases with evacuation of penetrating liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62933—Comprising exclusively pivoting lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6597—Specific features or arrangements of connection of shield to conductive members the conductive member being a contact of the connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62933—Comprising exclusively pivoting lever
    • H01R13/62944—Pivoting lever comprising gear teeth
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/707—Structural association with built-in electrical component with built-in switch interlocked with contact members or counterpart

Definitions

  • the invention relates to an electrical plug connector for plugging onto or plugging into a mating plug connector and a plug connector arrangement with such a plug connector.
  • the connector When using such connectors in high-current applications, the connector usually has at least two contact elements that are brought into mechanical and electrical contact with two mating contact elements on the mating connector.
  • the counter-contact elements can be designed, for example, as contact blades or contact pins.
  • the system of connector and mating connector can be referred to as a connector assembly.
  • seals can be provided which prevent water from entering the connector arrangement.
  • individual wire seals or sealing mats can be provided or radial seals between the plug connector and the mating plug connector.
  • the connector can, for example, be designed as a "female” type and the mating connector as a "male” type.
  • a charging plug for an electric vehicle which is intended to prevent water from entering a charging socket.
  • a retaining element for the contacts is mounted on the housing from the back of the charging plug.
  • a connector housing which has a contact locking element.
  • a connector with a housing which has contact chambers, the contact chambers having openings for the drainage of liquids.
  • the invention is based on the knowledge that despite good sealing by sealing elements, water or, more generally, an electrically conductive fluid medium can enter the connector arrangement. For example, the seals may age or a seal may be damaged.
  • a contact locking element that can be moved, for example, transversely to a plug-in direction, i.e. to prevent unintentional loosening the contact chamber, e.g. against the direction of insertion.
  • Short circuits can, for example, be a major risk for the connector arrangement when the currents used are more than 10A, more than 50A, more than 100A or even more than 400A and/or voltages of more than 48V, more than 450V or even more than 1000V, e.g due to the resulting heat development.
  • This also applies to large cable cross-sections, which can be more than 1mm 2 (square millimeter), more than 5mm 2 or more than 16mm 2 or even more than 100mm 2 .
  • a plug connector which, on the one hand, has a contact locking system in order to reliably secure the contact elements carrying high currents in their contact chambers and which is designed to prevent water from penetrating or, more generally, an electrically conductive fluid from penetrating Medium forms a short-circuit path between the contact elements or in the connector arrangement between the mating contact elements.
  • a short-circuit path between adjacent contact elements should be prevented, since a particularly short stretch of water is sufficient to produce a short circuit.
  • the connector is an electrical connector that is designed, in particular, at least partially for the transmission of high currents.
  • a plug connector for plugging onto or inserting into a mating plug connector along a plugging direction, wherein the mating plug connector has at least two mating contact elements.
  • the connector has a housing with a first level that faces the plug-in direction.
  • the housing has at least two contact chambers, each of which has an opening in the first level.
  • Each contact chamber is designed to accommodate a contact element, which is designed to electrically and mechanically contact one of the at least two mating contact elements of the mating connector.
  • a contact locking element is arranged on the first level for locking the contact elements that can be inserted into the contact chambers.
  • At least two of the contact chambers in the housing are designed to be separate from one another. It is provided that a wall is arranged between at least two mutually adjacent contact chambers, which protrudes from the first level when viewed in the opposite direction to the plug-in direction.
  • At least one groove is arranged in the first plane between at least two mutually adjacent contact chambers.
  • the wall and/or the at least one groove are arranged between the openings belonging to the adjacent contact chambers in the first level.
  • the adjacent contact chambers can be directly adjacent contact chambers.
  • a sensor additionally arranged in the plug connector or a plug connector arrangement comprising the plug connector can detect the penetrating water.
  • the current of the high-current connection can then be interrupted before the contact elements short-circuit.
  • a sensor for example a water sensor, for example designed as a resistance sensor, can be arranged, for example, in at least one of the contact chambers or in the vicinity of one of the contact chambers.
  • the wall and/or the at least one groove is advantageously designed in such a way that it prevents the flow of water over the shortest path between adjacent contact chambers in all installation positions.
  • the wall and/or the at least one groove can act as a kind of shield or adhesion barrier or creep barrier to ensure that water that has penetrated directly reaches two adjacent contact chambers via the shortest path or connects contact chambers that are further apart from each other.
  • the first level can be designed in such a way that there is a path along the first level that connects at least two of the contact chambers or their openings to one another.
  • the housing cannot be viewed as a block with separate contact chambers, with only an imaginary or virtual plane being placed in the block.
  • the contact chambers can be designed to be completely separate from one another within the housing, i.e. below the openings in the first level. You can therefore each form a separate contact chamber for yourself. Accordingly, they are spaced apart from one another in the direction perpendicular to the plugging direction. This also applies to the openings belonging to the contact chambers.
  • a wall is provided on the first level between all adjacent contact chambers and/or at least one groove is provided on the first level. These walls and grooves can be designed in such a way that they do not affect displacement of the contact locking element.
  • a spray skin formed during an injection molding process is generally not viewed as a wall in the sense of the invention.
  • the contact chambers can, for example, be arranged in a row in a direction perpendicular to the plugging direction. If there are more than two or even more than three contact chambers, the contact chambers can also be designed in a kind of matrix arrangement in the housing, i.e.: along rows and columns, each perpendicular to the plug-in direction.
  • the contact locking element can be, for example, a single contact locking element. In other words: only a single contact locking element is provided in the connector. With this, for example, all contact elements that can be inserted into the contact chambers can be secured at the same time. This advantageously simplifies the assembly process.
  • the contact locking element can, for example, be displaceable along the first level and either completely release or at least partially cover the openings of the contact chambers.
  • the contact locking element can, for example, be displaceable or displaceable along the first plane along an insertion direction perpendicular to the insertion direction.
  • the mating connector has at least two mating contact elements, which can be designed, for example, as contact blades or contact pins and which are designed, for example, for the transmission of high currents of at least 10A or at least 50A, in particular at voltages of at least 12V or at least 45V or at least 100V.
  • the counter-contact elements can, for example, have a cross section or a contact surface for the corresponding contact element of at least 2mm 2 or at least 5mm 2 or at least 10mm 2 or at least 20mm 2 or at least 50mm 2 , for example 6mm 2 or 50mm 2 or 90mm 2 .
  • the contact elements are designed to also conduct the high currents.
  • the contact elements are designed to be plugged onto the mating contact elements.
  • the plug connector or the contact elements can, for example, be designed as a "female” type plug element, the mating plug connector or the mating contact elements as a "male” type.
  • the wall extending the first level by at least 0.25mm or by at least 0.5mm or by at least 1mm or by at least 1.5mm or by at least 2mm overhang advantageously ensures that penetrating water cannot form the shortest short-circuit path between adjacent contact chambers.
  • the wall can have a width which is, for example, at least 0.25mm or at least 0.5mm or at least 1mm or at least 1.5mm or at least 2mm.
  • At least one groove is provided on the first level or in the first level, this at least one groove having a depth relative to the first level of at least 0.25 mm or at least 0 .5mm or at least 1mm or at least 1.5mm or at least 2mm. This advantageously provides a particularly effective drainage of the water in the manner of a channel or a particularly effective creep barrier is formed.
  • the at least one groove can have a groove width which is, for example, at least 0.25mm or at least 0.5mm or at least 1mm or at least 1.5mm or at least 2mm.
  • a contact element is arranged in at least two of the at least two contact chambers.
  • the wall and/or the at least one groove thus advantageously prevents a short circuit between two contact elements due to penetrating water.
  • both contact chambers are equipped with contact elements. However, if there are more than two contact chambers, it can happen that the connector is used for a modular system and, depending on the application, only exactly two, more than two or even all contact chambers are equipped with contact elements. In the event that not all contact chambers are populated, the wall and/or the at least one groove is formed at least between the next adjacent occupied contact chambers.
  • the at least two contact chambers are designed as a through opening through the housing when viewed along the insertion direction advantageously ensures that water penetrating up to the first level can flow out through the through opening and can leave the housing and thus the first level.
  • the fact that the wall extends at least along an overlapping length of the lengths of the adjacent openings advantageously means that there is no direct connection path along the projection direction between the openings and thus between the contact chambers along an overlapping region of a projection of the openings along a direction perpendicular to the plug-in direction .
  • the projection direction can, for example, be along the shortest connecting distance between the adjacent contact chambers or their openings. This reliably prevents penetrating water from flowing from one contact chamber into the adjacent contact chamber and thus also prevents a short short-circuit path.
  • the wall particularly advantageously extends without interruption at least along the projection length
  • the housing has an outer edge which surrounds the first level and which protrudes beyond the first level in the opposite direction to the insertion direction.
  • the border surrounds the first level along a circumferential angle of at least 220° around the insertion direction.
  • the wall and/or the at least one groove is guided through the edge along a radial direction perpendicular to the insertion direction.
  • drainage openings are provided between the wall and the edge.
  • the edge can, for example, protrude beyond the first level by at least 0.25mm or by at least 0.5mm or by at least 1mm or by at least 1.5mm or by at least 2mm, i.e.: protrude outwards from the first level in the opposite direction to the insertion direction.
  • the two recesses extend at least from the first level of the housing up to a second level of the housing facing away from the first level.
  • the recesses are each formed as a type of groove on an outside of the housing between the first level and the second level. They therefore advantageously act as a type of “rain gutter” or defined flow path or a flow aid for liquid, e.g. water, along the outside of the housing.
  • a sensor for detecting liquid e.g. water
  • the design of the recesses means that the liquid can be specifically supplied to such a sensor.
  • the contact locking element on the first level can be moved perpendicular to the plug-in plane from a first position to a second position, the contact elements in the second position of the contact locking element being prevented from being removed from the contact chambers against the plug-in direction by the contact locking element, is advantageously achieved: that a short circuit between contact elements is prevented during operation. It also prevents a build-up during operation Contact element detaches from the associated, contacted mating contact element. In such a case, when transmitting high currents, undesirable damage to the contact element and/or mating contact element could occur, for example due to an arc.
  • the contact elements In the first position of the contact locking element, the contact elements can be inserted into and removed from the contact chambers.
  • the contact locking element can be repeatedly moved back and forth between the first and second positions, for example for assembly purposes and/or disassembly purposes.
  • the contact locking element has a latching device.
  • the wall and/or the at least one groove has, on an end face that points in a direction opposite to the plug-in direction, a structure that is complementary to the latching device and in which the latching device can latch. This advantageously ensures that during assembly it can be determined by a haptic signal, the latching, whether and that the contact lock has been moved into the first or second position. At the same time, the first or second position of the contact locking element is secured against unintentional adjustment.
  • An arrangement on the front side of the wall further advantageously ensures that the flow of liquid along the first level is not impaired by the locking device or that the flow is not redirected.
  • the contact locking element has two arms projecting from a base body, which are at a distance from one another perpendicular to their direction of extension which is greater than a width of the wall transverse to the insertion direction.
  • the two arms run on both sides of the wall when the contact locking element is inserted.
  • the distance between the arms can, for example, be a maximum of 1mm or a maximum of 0.2mm larger than the width of the wall.
  • the wall advantageously also has a guiding function for the contact locking element in addition to its separating function for the liquid. This promotes correct insertion of the contact locking element and thus also secure and reliable locking of contact elements fitted in the contact chambers.
  • the wall thus ensures that the connector is particularly well secured against short circuits: on the one hand, against unintentional loosening by means of the contact locking element and, on the other hand, against a short circuit path caused by water penetrating.
  • a projection can be arranged on the arms in the vicinity of the base body, which protrudes from the arms transversely to an extension direction of the arms. This can ensure that in the first position of the contact locking element the projection does not cover the corresponding opening and in the second position it at least partially covers the opening.
  • the projection can represent a type of undercut that prevents the contact element from moving out counter to the insertion direction.
  • one arm or two arms can be provided on the contact locking element for several openings or for each opening, i.e. for several contact chambers or for each contact chamber. These arms can all be arranged on the base body.
  • the contact locking element can in principle also be designed differently, i.e. designed without linear arms.
  • the wall and the two arms running to the side of it create a kind of poka-yoke solution that prevents the insertion of an incorrect contact locking element into the connector. This is important during assembly to ensure that a connector made up of several individual parts is assembled correctly and can fulfill its function - for example, securing the contact elements inserted into the contact chambers.
  • the locking device is connected to the two arms running on both sides of the wall.
  • the locking device connects the two arms at their free ends by means of a connecting element.
  • the connecting element bridges the wall in the opposite direction to the insertion direction considered.
  • this advantageously stabilizes the locking device and makes it robust against mechanical loads.
  • the two arms connected to each other are stabilized. You can better resist damage caused by, for example, crooked insertion of the contact locking element.
  • the Poka-Yoke solution described above is further improved.
  • the locking device is prevented from slipping off the front side of the wall.
  • an electrical connector arrangement is proposed.
  • the plug connector is plugged together with the mating plug connector along a plug-in direction and is electrically contacted.
  • the counter-contact elements can be designed, for example, as contact blades or contact pins. In principle, contact areas (so-called “lands”) on a circuit board are also possible.
  • the proposed connector arrangement is advantageously characterized by particularly good security against short circuits, in that the detachment of contact elements from the contact chambers is prevented by means of the, preferably single, contact locking element. At the same time, a short circuit caused by water penetrating into the connector arrangement is prevented by preventing a short short circuit path between adjacent contact chambers and/or contact elements.
  • the plug connector 1 is plugged together with the mating plug connector 30 along a plug-in direction S and can be electrically contacted.
  • the plugging direction S corresponds to the direction of gravity g.
  • the plug connector 1 is set up for plugging onto the mating plug connector 30 or for plugging into the mating plug connector 30 along the plugging direction S.
  • the plug connector 1 has a housing 2 with a first level 3, which faces the plugging direction S.
  • the first level 3 essentially has the shape of a rectangle with rounded edges.
  • An outer housing 51 is mounted over the housing 2, with a radial seal 50 being mounted between the housing 2 and the outer housing 51, merely as an example, which prevents the penetration of water or, more generally, an electrically conductive fluid medium from an outer area of the plug connector 1 onto the first level 3 should prevent.
  • a lever 52 can be arranged on the outer housing 51, which can engage in a toothed rack 36 on the mating connector 30 by means of toothed elements 52a when the plug connector 1 and mating plug connector 30 are plugged together, so that the plug connector 1 can be pulled onto the mating plug connector 30 by pivoting the lever 51.
  • the housing 2 has at least two contact chambers 4, each of which has an opening 5 in the first level 3. In the exemplary embodiment shown, exactly two contact chambers 4 are provided. Each contact chamber 4 is set up to receive a contact element 6. Each contact element 6 is set up for electrically and mechanically contacting one of the at least two mating contact elements 31 of the mating connector 30. Each contact element 6 is electrically and mechanically connected to a line 55 which is electrically connected around a conductive core (a wire or a bundle of strands) has insulation around it. An individual wire seal 56 with several sealing lamellae spaced apart along an extension direction of the line can be provided on each line 55.
  • a conductive core a wire or a bundle of strands
  • a contact locking element 20 is arranged for locking the contact elements 6 that can be inserted into the contact chambers 4.
  • the contact locking element 20 can be inserted or displaced into the plug connector 1 from the side along an insertion direction E, i.e. transversely to the insertion direction S. This means: it can be relocated transversely to the plugging direction S above or on the first level 3.
  • the housing 2 has an outer edge 8 which surrounds or delimits the first level 3 and which protrudes beyond the first level 3 in the opposite direction to the insertion direction S.
  • the two contact chambers 4 are designed to be separate from one another in the housing 2.
  • a wall 7 is arranged between the two adjacent contact chambers 4, which projects from the first level 3 in the opposite direction to the plug-in direction S.
  • a direct connection between the two openings 5 along the first level 3 is prevented.
  • the counter contact elements 31 is prevented.
  • At least one groove can be arranged in the first level 3 between the two mutually adjacent contact chambers 4, for example one groove on each side of the wall 7. In the exemplary embodiment shown, these grooves are not shown. At least one groove can also be formed instead of the wall 7. Then the first level 3 can be made particularly flat and that Contact locking element 20 can be moved over the first level 3 particularly without obstacles.
  • the housing 2 additionally has signal contact openings 61 with signal contact chambers underneath. These signal contact chambers are set up to accommodate signal contacts 57 with lines arranged thereon.
  • two insertion openings 53 for the contact elements 6 and six signal contact insertion openings 54 for the signal contacts 57 are provided.
  • the contact element 6 is designed to transport current of at least 10A, preferably of at least 20A or at least 50A, preferably of at least 100A.
  • They can be dimensioned accordingly and have contact surfaces to the mating contact elements of, for example, at least 2mm 2 or at least 5mm 2 or at least 10mm 2 , preferably at least 20mm 2 .
  • the signal contacts can, for example, be dimensioned smaller.
  • signal voltages are applied to them, for example 0V to 5V, and only small signal currents flow, for example less than 3A, preferably less than 1A and particularly preferably less than 300 mA.
  • Fig. 1b shows connector 1 Fig. 1a in assembled condition.
  • the housing 2 is now arranged inside the outer housing 51 and is not visible here.
  • the connector 1 has two contact elements 4, of which the two lines 55 can be seen, as well as six signal contact elements 57 with their lines.
  • Fig. 1c shows a perspective view of the mating connector 30 facing the viewer.
  • the two mating contact elements designed as contact blades can be clearly seen.
  • a contact protection 32 is arranged between the two counter-contact elements 31.
  • a matrix of six signal counter-contact elements 34, which are designed as pins, is arranged spatially separated from the mating contact elements 31.
  • the counter-contact elements 31 designed as contact blades can also be designed, for example, as pins or even as contact surfaces of a conductor track.
  • Figure 2 shows the housing 2 without the contact locking element with more details.
  • the wall 7 projects beyond the first level 3 by at least 0.25mm or by at least 0.5mm or by at least 1mm or by at least 1.5mm or by at least 2mm.
  • this groove has a depth relative to the first level 3. This depth can be, for example, at least 0.25mm or at least 0.5mm or at least 1mm or at least 1.5mm or at least 2mm.
  • a width B of the wall 7 or a width of the groove can be, for example, at least 0.25mm or at least 0.5mm or at least 1mm or at least 1.5mm or at least 2mm.
  • the wall 7 can serve as a kind of guide element for liquid and a groove can also serve as a kind of trench or channel as a guide element for liquid.
  • the housing 2 has exactly two contact chambers 4.
  • more than two contact chambers 4 can also be provided, for example at least three or at least four contact chambers 4, for example five, six, seven, eight, nine, ten or 14 or 20 contact chambers 4.
  • These contact chambers 4 can be arranged along the width direction X as a row be arranged next to each other.
  • a matrix arrangement is also conceivable in which, for example, several rows extending along the width direction X are spaced apart from one another with respect to the longitudinal direction Y.
  • one or more contact chambers 4 can be unequipped, for example in order to provide a housing 2 which, for modular structures, is each equipped with two, three, four or five contact elements 4, but in which the positions of the assembly vary depending on interchangeable mating connector 30 can be different. Then, as an example, only six contact chambers 4 can be provided, of which, however, only two or only three of these are equipped with contact elements 6.
  • the contact chambers 4 arranged in the housing 2 have at least one undercut 13 on their walls, merely as an example, on which a locking lance of a contact element 6 inserted into the contact chamber 4 can primary lock before that Contact element 6 is finally secured in position (thus secondary locked) by means of the contact locking element 20, not shown here.
  • the two contact chambers 4 each have approximately the same size, so that the contact elements 6 can be manufactured as identical parts.
  • the openings 5 arranged in the first level 3 have an approximately rectangular cross section that has rounded corners.
  • the long sides extend along a first length L1 at the first opening 5 (left opening in the picture) and along a second length L2 at the second opening 5 (right opening in the picture).
  • the long sides extend approximately along the longitudinal direction Y. If the two mutually facing long sides of the adjacent openings are projected along a direction R perpendicular to the insertion direction S and perpendicular to the long side of the openings 5 (shortest distance between the openings), an overlap length L results
  • the wall 7 extends along the longitudinal direction Y at least along this overlap length L between the two openings 5.
  • the edge 8 of the first surface 3 can, for example, protrude beyond the first level 3 by at least 0.25mm or by at least 0.5mm or by at least 1mm or by at least 1.5mm or by at least 2mm. It can be designed in such a way that its end face interacts with the radial seal 50 of the plug connector along the Z direction and thus prevents liquid from penetrating into the first level 3 (eg in Fig. 4c recognizable).
  • the border 8 surrounds or surrounds the first plane 3 along a rotation angle ⁇ (phi) of at least 220 ° around the insertion direction S (to make this clear, see Fig Fig. 2 the plugging direction S is shown twice).
  • ⁇ phi
  • the first level 3 is bordered on three sides: it is completely bordered on its two shorter sides and on one of its longer sides (here: the longer side pointing to the left) with the exception of one further breakthrough or two recesses 9 described below.
  • no border 8 is provided or only in sections.
  • the contact locking element 20 is inserted onto the plane and access is formed for movement of the contact locking element 20 along the insertion direction E.
  • the missing edge 8 on the housing here is supplemented by the contact locking element apron 18 of the contact locking element 20 (see Figs. 1a , 3a-3c , 4a ), so that when the contact locking element 20 is inserted, the first level 3 is in principle completely enclosed by an edge 8, 18.
  • the advantage of this design of the connector with housing 2 and outer housing 51 as well as the contact locking element 20 arranged between them on the first level 3 is that in this way a single contact locking element 20 is sufficient to lock all contact elements 4 in their contact chambers 6.
  • the wall 7 arranged between the adjacent contact chambers 4 is provided.
  • at least one groove can also be provided, which runs like a trench between the openings 5 and can drain away water.
  • the wall 7 is guided through the edge 8 along the longitudinal direction Y, i.e. along a radial direction R perpendicular to the insertion direction S.
  • a recess 9 is provided on both sides of the wall 7 between the edge 8 and the wall 7 along a circumferential direction U.
  • the contact chambers 4 have no connection within the housing 2. Here, for example, they are designed as through openings through the housing 2 and end in a second level 10 at the lower end of the housing 2 in the figure. There the mating contact elements 31 can then enter the contact chambers 4 when the plug connector 1 is plugged together with the mating plug connector 30.
  • the openings 5 of the contact chambers 4 in the first level 3 are thus spaced apart from one another, but can basically be connected to one another through a path in the first level 3.
  • a path runs, for example, from the left opening 5 along the wall 7 backwards to the signal contact openings 61, where the contact locking element 20 can be stored, around the wall 7 and to the right opening 5.
  • this path is considerably longer than the shortest path which would run across the wall 7.
  • such a path extended by means of the wall 7 requires that the liquid initially flows in one direction (e.g. when tilted slightly backwards: along the force of gravity g) and then, after circling the wall 7, it would have to flow against this direction, i.e. then against gravity g.
  • the tilt for example to the left, would have to be so great that the liquid overcomes the height of the wall 7 (or alternatively a trench depth of a groove) before it flows beyond the first level 3 and then flows away along the outer wall of the housing 2. Therefore, the wall 7 makes it more likely that, for example when tilting forward, the liquid will flow along the arrows shown on the wall 7 and flow away from the first level 3 at the recesses 9 - and not go around the wall 7 and on the other side the wall 7 flows upwards again.
  • At least one sensor can additionally be arranged, for example, in the vicinity of the second level 10 and/or in at least one contact chamber 4, which is set up to detect liquid or moisture or a liquid level. If liquid or moisture or a liquid level is detected by the sensor, the current can be switched off so that a short circuit between two or more contact elements 6 or mating contact elements 31 by means of the liquid cannot cause any damage.
  • FIG. 7 shows the housing 2 of the connector Fig. 2 with a contact locking element 20.
  • the contact locking element 20 is formed in one piece here. Only a single contact locking element 20 is provided in the connector 1.
  • the contact locking element 20 has two arms 23 projecting from a base body 22.
  • the base body 22 extends here only by way of example along the width direction a comb-like structure of the contact locking element 20 results.
  • the arms 23 adjacent to the wall 7 have a distance D from one another perpendicular to their direction of extension, which is greater than the width B of the wall 7 transverse to the insertion direction S.
  • the two arms 23 adjacent to the wall 7 run on both sides when the contact locking element 20 is inserted Wall 7.
  • the distance D can, for example, be at most 1mm or at most 0.2mm larger than the width B of the wall 7.
  • the contact locking element 20 can be moved on the first level 3 along the insertion direction E perpendicular to the plug-in level S from a first position to a second position.
  • the arms 23 with their projections 26 do not cover the openings 5 or only to such an extent that the contact chambers 4 can be equipped with contact elements 6 in the first position of the contact locking element 10.
  • the projections 26 on the arms 23 partially cover the openings 5 of the contact chambers 4 at least in such a way that contact elements 6 inserted into the contact chambers 4 are secured against being removed from the contact chambers 4 against the insertion direction S.
  • the contact locking element 20 has a latching device 21, wherein the wall 7 (alternatively or additionally: the at least one groove) has a structure 12 complementary to the latching device 21 on an end face 11, which points in a direction opposite to the plug-in direction S, in which the Locking device 21 can lock.
  • the latching device 21 is designed here as a kind of tip 27 on a spring structure 28, the tip 27 being pressed onto the end face 11 of the wall 7 by the spring structure 28.
  • the end face 11 has a topography with two along the longitudinal direction Y neighboring local minima M1, M2 (only the first minimum M1 is visible). If the contact locking element 20 is now displaced along the insertion direction E on the first level 3, the tip 27 slides along the end face 11.
  • the tip 27 snaps into place - here, for example, the first position has been reached and a fitter receives haptic feedback that, for example, an assembly position (first position) has been reached.
  • the contact locking element 20 can then only be moved further along the insertion direction E by applying increased force. If this happens, the tip 27 leaves the first minimum M1 along a lead-out slope 29 of the first minimum M1 and snaps into a second, for example wedge-shaped, minimum M2 during further movement.
  • the fitter receives haptic feedback that, for example, a locking position (second position) has been reached.
  • the latching device 21 is connected to the two arms 23 running on both sides of the wall 7 merely as an example.
  • the latching device 21 connects the two arms 23 adjacent to the wall 7 at their free ends 24 by means of a connecting element 25, the connecting element 25 bridging the wall 7 when viewed against the insertion direction S.
  • this advantageously ensures that the two arms 23 are mechanically stabilized.
  • the latching device 21 with its tip 27 always slides along the end face 11 and its structure 12, which is complementary to the latching device 21, and cannot slip laterally.
  • Figures 3b and 3c show detailed views of the contact locking element 20 in the first position ( Fig. 3b ) and in the second position ( Fig. 3c ) by means of a longitudinal section through the wall 7.
  • the first minimum M1 and the second minimum M2 can be clearly seen in both figures.
  • the projections 26 arranged on the arms near the base body 22 cover part of the opening 5 shown.
  • Figures 4a and 4b show two external views of a plug connector 1 rotated by 90 ° about the Z axis, which is arranged so that the plug-in direction S corresponds to the direction of gravity g.
  • the lever 52 and the outer housing 51 can be clearly seen.
  • Figure 4c shows a cross section Fig. 4b , to illustrate how, when liquid is introduced up to the first level 3, the penetrating liquid or electrically conductive fluid or fluid medium is prevented by means of the wall 7 from short-circuiting the two contact elements 6 or the two counter-contact elements 31. Included Here the liquid only penetrates, for example, through the individual wire seals 56 of the lines 55 of the contact elements 6.
  • the liquid here referred to as "H2O" as water, hits the first level 3 in the area of the openings 5 after passing through a conically tapered opening in the lower part of the outer housing 51.
  • liquid can also run along the wall 7 to the edge 8 and then flow through the recesses 9 on the outside of the housing 2.
  • Figure 5a shows a view of the connector 1 in an installed position in which the plug-in direction S is tilted by approximately 80 ° relative to the direction of gravity g.
  • the X direction points approximately in the direction of gravity g and the lever 52 faces the viewer.
  • the insertion direction E comes from the image plane towards the viewer.
  • liquid, which penetrates to the first level 3 collects on the wall 7, which here is aligned approximately horizontally with respect to the direction of gravity g.
  • Figure 5b shows the connector Fig. 5a in a cross section through the outer housing 51, so that the recesses 51 on the outside of the housing 2 are directly visible.
  • the liquid passing, for example, through the individual wire seals 56 to the first level 3 shows the following flow paths: the liquid penetrating the line 55 that is closer to the gravity g flows into the first (here lower) opening 5 when it reaches the first level 3.
  • the an Liquid penetrating the other (upper) line 55 follows the force of gravity g and initially collects in the area between the first level 3 and wall 7, where a V-shaped collecting section forms.
  • the liquid cannot overcome the wall 7, but flows through the side of the wall 7 that is now located at the top in the figure associated recess 9 and there without passing over to the other recess 9 along the outer wall of the housing 2. This means that a short circuit is effectively prevented even in this installation position.
  • Figures 6a and 6b show two external views of a plug connector 1 rotated by 90° relative to each other about the Y axis, this being arranged in such a way that the plugging direction S is tilted by approximately 90° relative to the direction of gravity g and the wall 7 on the first level 3 is tilted in the direction of gravity g shows.
  • the lever 52 points downwards along the direction of gravity g, as does the insertion direction E.
  • Fig. 6c shows the connector Figs. 6a and 6b in a cross section through the outer housing 51, so that the first level 3 is visible.
  • liquid penetrating onto the first level 3 cannot also short-circuit the adjacent contact chambers 4 via the shortest route, since the wall 7, which is vertical here, forces it to drain downwards on both sides of the wall 7 in the manner of a sheath to emerge from the housing 2 through the recesses 9.
  • the wall prevents or at least delays for a long time a short circuit caused by liquid on the shortest path between adjacent contact chambers 4 and the contact elements 6 located therein .
  • connector 1 is off Fig. 6c rotated by 180° around the plug-in direction S, liquid flows on the first level 3 along the wall 7 (or in at least one groove) into the area of the signal contacts, where a short circuit would not have such severe consequences and could also be detected, so that the high currents at the contact elements 6 could be switched off.
  • the invention is not limited to a plug connector 1 with exactly two contact chambers 4. If there are more than two contact chambers 4, several walls 7 can be provided, each between adjacent contact chambers 4, and also one or two recesses 9 for each wall 7, through which the liquid can flow away from the first level 3.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Claims (12)

  1. Connecteur enfichable destiné à être enfiché sur ou dans un connecteur homologue pourvu d'au moins deux éléments de contact homologues (31), le long d'une direction d'enfichage (S),
    dans lequel le connecteur enfichable (1) présente un boîtier (2) pourvu d'un premier niveau (3) qui est tourné vers la direction d'enfichage (S),
    dans lequel le boîtier (2) présente au moins deux chambres de contact (4) dont chacune présente une ouverture (5) dans le premier niveau (3), dans lequel chaque chambre de contact (4) est conçue pour recevoir un élément de contact (6) qui est conçu pour la mise en contact électrique et mécanique d'un des au moins deux éléments de contact homologues du connecteur homologue (30),
    dans lequel un élément de verrouillage de contact (20) est disposé sur le premier niveau (3) pour verrouiller les éléments de contact (6) pouvant être insérés dans les chambres de contact (4), dans lequel au moins deux des chambres de contact (4) sont réalisées de manière séparée l'une de l'autre dans le boîtier (2),
    dans lequel une paroi (7) est disposée entre au moins deux chambres de contact (4) voisines l'une de l'autre et fait saillie à partir du premier niveau (3), vu à l'opposé de la direction d'enfichage (S),
    et/ou
    dans lequel sur le premier niveau (3), au moins une rainure est disposée entre deux chambres de contact voisines (4) l'une de l'autre,
    caractérisé en ce que
    le boîtier (2) présente une bordure extérieure (8) qui entoure le premier niveau (3) et qui dépasse du premier niveau (3) à l'opposé de la direction d'enfichage (S), dans lequel la bordure (8) entoure le premier niveau (3) le long d'un angle périphérique (φ) d'au moins 220° autour de la direction d'enfichage (S),
    dans lequel la paroi (7) et/ou ladite au moins une rainure passent le long d'une direction radiale (R) perpendiculairement à la direction d'enfichage (S) à travers la bordure (8),
    dans lequel respectivement un évidement (9) est prévu le long d'une direction périphérique (U) des deux côtés de la paroi (7) entre la bordure (8) et la paroi (7).
  2. Connecteur enfichable selon la revendication 1,
    dans lequel, dans la première alternative selon la revendication 1, la paroi (7) dépasse du premier niveau (3) d'au moins 0,25 mm ou d'au moins 0,5 mm ou d'au moins 1 mm ou d'au moins 1,5 mm ou d'au moins 2 mm,
    et/ou
    dans lequel, dans la deuxième alternative selon la revendication 1, ladite au moins une rainure présente une profondeur par rapport au premier niveau (3) qui mesure au moins 0,25 mm ou au moins 0,5 mm ou au moins 1 mm ou au moins 1,5 mm ou au moins 2 mm.
  3. Connecteur enfichable selon l'une quelconque des revendications précédentes,
    dans lequel un élément de contact (6) est disposé dans au moins deux desdites au moins deux chambres de contact (4) .
  4. Connecteur enfichable selon l'une quelconque des revendications précédentes,
    dans lequel lesdites au moins deux chambres de contact (4) sont réalisées comme une ouverture de passage à travers le boîtier (2), vu le long de la direction d'enfichage (S).
  5. Connecteur enfichable selon l'une quelconque des revendications précédentes,
    dans lequel la paroi (7) s'étend au moins le long d'une longueur de chevauchement (L) des longueurs (L1, L2) des ouvertures voisines (5).
  6. Connecteur enfichable selon l'une quelconque des revendications précédentes,
    dans lequel la bordure extérieure (8) dépasse du premier niveau (3) à l'opposé de la direction d'enfichage (S) d'au moins 0,25 mm ou d'au moins 0,5 mm ou d'au moins 1 mm ou d'au moins 1,5 mm ou d'au moins 2 mm.
  7. Connecteur enfichable selon la revendication précédente,
    dans lequel les deux évidements (9), vus le long de la direction d'enfichage (S), s'étendent au moins du premier niveau (3) du boîtier (2) jusqu'à un deuxième niveau (10) du boîtier (1) détourné du premier niveau (3).
  8. Connecteur enfichable selon l'une quelconque des revendications précédentes,
    dans lequel l'élément de verrouillage de contact (20) peut être décalé d'une première position à une deuxième position sur le premier niveau (3) perpendiculairement à la direction d'enfichage (S),
    dans lequel les éléments de contact (6) dans la deuxième position de l'élément de verrouillage de contact (20) sont protégés par l'élément de verrouillage de contact (20) contre tout retrait des chambres de contact (4) à l'opposé de la direction d'enfichage (S).
  9. Connecteur enfichable selon la revendication précédente,
    dans lequel l'élément de verrouillage de contact (20) présente un dispositif d'enclenchement (21),
    dans lequel la paroi (7) et/ou ladite au moins une rainure présente(nt) sur une face frontale (11) orientée dans une direction à l'opposé de la direction d'enfichage (S) une structure (12) complémentaire au dispositif d'enclenchement (21) dans laquelle le dispositif d'enclenchement (21) peut s'enclencher.
  10. Connecteur enfichable selon l'une des deux revendications précédentes,
    dans lequel l'élément de verrouillage de contact (20) présente deux bras (23) faisant saillie à partir d'un corps de base (22) et qui présentent perpendiculairement à leur direction d'extension une distance (D) l'un par rapport à l'autre qui est supérieure à une largeur (B) de la paroi (7) transversalement à la direction d'enfichage (S),
    dans lequel les deux bras (23) à l'état enfiché de l'élément de verrouillage de contact (20) s'étendent des deux côtés de la paroi (7).
  11. Connecteur enfichable selon la revendication 9 et selon la revendication 10,
    dans lequel le dispositif d'enclenchement (21) est relié aux deux bras (23) s'étendant des deux côtés de la paroi (7),
    dans lequel le dispositif d'enclenchement (21) relie les deux bras (23) à leurs extrémités libres (24) au moyen d'un élément de liaison (25),
    dans lequel l'élément de liaison (25) enjambe la paroi (7), vu à l'opposé de la direction d'enfichage.
  12. Agencement de connecteur enfichable électrique, présentant :
    - un connecteur enfichable (1) selon l'une quelconque des revendications précédentes ;
    - un connecteur homologue (30) pourvu d'au moins deux éléments de contact homologues (31),
    dans lequel le connecteur enfichable (1) est assemblé le long d'une direction d'enfichage (S) avec le connecteur homologue (30) et mis en contact électrique avec celui-ci .
EP18803900.2A 2017-11-30 2018-11-08 Connecteur enfichable et système de connecteurs enfichables pourvu d'un tel connecteur enfichable Active EP3718175B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017221521.6A DE102017221521B4 (de) 2017-11-30 2017-11-30 Steckverbinder und Steckverbinderanordnung mit einem derartigen Steckverbinder
PCT/EP2018/080533 WO2019105705A1 (fr) 2017-11-30 2018-11-08 Connecteur enfichable et système de connecteurs enfichables pourvu d'un tel connecteur enfichable

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EP3718175A1 EP3718175A1 (fr) 2020-10-07
EP3718175B1 true EP3718175B1 (fr) 2024-02-21

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US (1) US11251561B2 (fr)
EP (1) EP3718175B1 (fr)
JP (1) JP6997316B2 (fr)
KR (1) KR102405664B1 (fr)
CN (1) CN111373610B (fr)
DE (1) DE102017221521B4 (fr)
WO (1) WO2019105705A1 (fr)

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DE102020210496B3 (de) * 2020-08-19 2021-12-16 Robert Bosch Gesellschaft mit beschränkter Haftung Adapterstecker und Elektronikbaugruppe mit einem Adapterstecker

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EP3718175A1 (fr) 2020-10-07
DE102017221521A1 (de) 2019-06-06
DE102017221521B4 (de) 2019-08-08
KR20200086367A (ko) 2020-07-16
JP2021504919A (ja) 2021-02-15
JP6997316B2 (ja) 2022-01-17
WO2019105705A1 (fr) 2019-06-06
US20210006000A1 (en) 2021-01-07
CN111373610A (zh) 2020-07-03
US11251561B2 (en) 2022-02-15
CN111373610B (zh) 2022-05-31
KR102405664B1 (ko) 2022-06-03

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