EP3092688B1 - Hv-interface having centreing - Google Patents
Hv-interface having centreing Download PDFInfo
- Publication number
- EP3092688B1 EP3092688B1 EP14792394.0A EP14792394A EP3092688B1 EP 3092688 B1 EP3092688 B1 EP 3092688B1 EP 14792394 A EP14792394 A EP 14792394A EP 3092688 B1 EP3092688 B1 EP 3092688B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- type connector
- contact
- connector
- making surface
- contact member
- 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.)
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- 239000004020 conductor Substances 0.000 claims description 58
- 238000003780 insertion Methods 0.000 claims description 39
- 230000037431 insertion Effects 0.000 claims description 39
- 230000013011 mating Effects 0.000 claims description 29
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Images
Classifications
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- 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]
- H01R13/6581—Shield structure
-
- 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
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
-
- 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
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
-
- 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
- H01R13/621—Bolt, set screw or screw clamp
- H01R13/6215—Bolt, set screw or screw clamp using one or more bolts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
Definitions
- the invention relates to a connector for connecting to a complementarily shaped mating connector, in particular for high current or high voltage applications.
- the connector has an inner conductor for conducting a high current and a peripheral conductor surrounding the inner conductor.
- the outer conductor serves to shield the electromagnetic fields surrounding it.
- the outer conductor has on a front side of the connector, which faces when connecting a front side of the mating connector, an outer contact element for screen transfer.
- Connectors generally serve to releasably connect electrical leads to carry power and / or electrical signals when connected.
- a first connector is plugged together in the form of a socket part with a second connector in the form of a plug part to form a plug connection.
- High-current connectors are used to transmit high electrical currents, for example, with a current greater than 100 A, such as 200 A to 400 A, and are used for example in electric or hybrid electric vehicles.
- the inner conductor of the second connector which is designed as a plug part, a have in a plug-in direction protruding contact blade or a contact pin which is inserted into a receiving recess of the first connector, which is designed as a female part for electrical contacting of the first connector and second connector.
- In the receiving recess is an inner contact element of the inner conductor of the female part.
- the space penetrated by the inner conductor is shielded as completely as possible from the outside in order to protect the environment from the irradiation of electromagnetic fields, and to keep electromagnetic fields from the interior of the outer conductor.
- This shielding is effected by the outer conductor formed from an electrically conductive material, which circumscribes the inner conductor generally like a tube or the like.
- a connector according to claim 1 Under a rigid ring member according to the invention is understood that the ring element with axial and / or radial force on the ring member is not or hardly yields, but remains stationary and unmoved relative to the housing of the connector.
- the outer contact element is therefore not formed as in conventional connectors as a resilient or resilient metal projection in the manner of one or more leaf springs or a wire mesh, which is set during insertion under bias and presses in abrading contact with a contact surface. Rather, the outer contact element on a circumferential contact surface, which is adapted for planar contact with a complementary shaped counter-contact surface of the mating connector, against which it can be pressed in the axial direction.
- Ring element is understood to mean a circumferential contact element in the circumferential direction, through the interior of which the conduction path of the inner conductor extends in the plug state.
- the ring element is not necessarily circular, but may or the like the inner conductor in the manner of an ellipse, an oval. circulate.
- the contact surface is unlike conventional connectors in a (preferably in each) axially extending through the center of the connector cutting plane with respect to the direction of insertion inclined or obliquely. In other words, the contact surface is neither parallel nor perpendicular to the insertion direction.
- the rigidly fixed contact surface in the axial direction against a complementarily shaped counter-contact surface are pressed, resulting in a particularly stable and reproducible screen transfer.
- the shield transfer can be particularly reliable if the contact surface extends in an axial sectional plane at least partially at an angle of more than 10 ° and less than 80 ° relative to the insertion of the connector. An angle of about 30 ° has been found to be particularly favorable.
- Both radially and axially acting forces emanating from the mating connector can be effectively introduced into the contact surface in this way, so that the connector can be connected in a particularly stable manner with a mating connector.
- the contact surface running at an acute angle relative to the insertion direction leads to an automatic centering of the connector when inserted into the mating connector.
- the contact surface in the insertion direction at least partially tapers conically or expands.
- Plug-in direction is understood to be that direction in which a connector designed as a plug connector is moved for coupling with a connector designed as a plug connector in the direction of the socket part.
- the contact surface can be directed radially inwards in the direction of an insertion opening or radially outwards.
- a connector designed as a connector it is particularly advantageous if the contact surface is directed radially inward and tapers like a cone in the insertion direction.
- it is particularly advantageous in a connector designed as a plug connector when the Contact surface is directed radially outward and tapers conically in the plug.
- the taper angle of the contact surface of the plug part and the counter-contact surface of the associated socket part with respect to the insertion direction correspond to each other, so that a flat contact in the plug state can be achieved.
- the angle is in each case about 30 ° relative to the insertion direction.
- the rigid ring element of the outer contact element may be substantially annular with an inner diameter of more than 4 cm, preferably more than 6 cm, in particular about 8 cm or more.
- a dimension of the contact surface in an axial section plane running through the center of the ring can be more than 1 cm, in particular more than 1.5 cm and less than 3 cm.
- a large contact surface leads to a particularly stable system on the mating connector and thus to a safe and fault-free Schirmungsübergabe.
- the outer contact element is preferably secured to an electrically conductive housing part of the connector for shield transfer between the outer contact element and the conductive housing part by compression.
- the outer contact element is a separate component, which is pressed with a conductive housing part of the connector.
- a compression leads to a large-area and closely contacting system between the annular contact element and the housing part, which is advantageous in terms of a good screen transfer.
- a compression in the production of the connector is particularly fast and easy to carry out.
- the shielding path extends from the housing part of the first connector via the outer contact element of the first connector via the outer contact element of the second connector to the housing part of the second connector.
- a direct contact of the two housing parts is advantageously avoided.
- the outer contact element in addition to the obliquely to the insertion direction extending contact surface preferably in the insertion direction and / or have perpendicularly extending attachment surface which rests circumferentially on the housing part.
- the attachment surface of the outer contact element is pressed against a complementary thereto arranged compression portion of the housing part. Therefore, an approximately circular cylindrical mounting surface of the ring member has a minimally larger diameter than a tubular insertion opening of the housing part, so that the ring member can be pressed into this opening.
- the housing part may be formed of aluminum.
- An aluminum housing is particularly simple and inexpensive to produce and can act as an outer conductor due to its conductive properties.
- the outer contact elements are often formed integrally with the housing part made of aluminum, so that the connector and the mating connector contact via two aluminum surfaces.
- an aluminum-on-aluminum compound has a high contact resistance, which increases with time due to possible oxidation.
- it has been found to reduce the contact resistance in the shield transfer between connector and mating connector particularly advantageous when the outer contact element of brass and / or bronze is formed.
- a production of the annular outer contact element of measurement and / or bronze is readily possible according to the invention, since this can be produced as a separate component and can then be connected to the aluminum housing part, for example by pressing.
- the connector according to the invention has two, three or more inner conductors circumscribed by the outer conductor in each case an inner contact element for electrically contacting an associated inner contact element of a mating connector.
- a first inner conductor may be a live conductor and a second inner conductor may be a ground conductor, or both inner conductors may alternatively be live.
- a high-current rotary voltage can be transmitted. Due to the common shielding of all inner conductors on the peripheral outer conductor a compact overall arrangement of the connector or the connector is possible.
- the connector according to the invention in the form of a plug part is formed with at least one protruding in the insertion direction pin or sword-shaped inner contact element of the inner conductor, wherein the inclined contact surface is preferably directed radially outward and tapers like a cone in the plug.
- the connector according to the invention is arranged in the form of a socket part with at least one receiving recess for receiving a pin or sword-shaped contact element of a plug part, wherein the contact surface is preferably directed radially inward and tapers conically in the plugging direction.
- the invention relates to a connector for high-current applications formed from two connectors according to the invention.
- the first connector is formed as a female part and the second connector is formed as a plug part.
- the female part and the male part are connected to each other by inserting the male part in the insertion direction into the female part.
- the two outer contact elements each formed as rigid ring elements contact each other electrically such that the contact surface of the first connector rests flat against the contact surface of the second connector. Due to the oblique course of the two contact surfaces in an axially extending through the center of the connector cutting plane and due to the rigidity of the outer contact elements, an offset of the two connectors is possible neither in the axial nor in the radial direction. This leads to a particularly reliable and durable screen transfer.
- the surface contact between the two contact surfaces can be achieved by the fact that the contact surface of the first connector is pointing radially inwardly and conically tapered in the plug, while the contact surface of the second connector radially outward and tapers conically at the same angle in the plug ,
- the angle between the contact surface and the plug-in axis in the axial sectional plane is circumferentially preferably about 30 °. This leads to a particularly good centering effect when mating the connector.
- the connector can be held by a in the plugging direction at least partially extending through the first connector and the second connector fastener for non-positive and / or positive locking of the connector particularly safe in the plug state.
- the fastening means By means of the fastening means, the contact surfaces of the two connectors can be pressed against each other with a predetermined axial force.
- the first and second connectors may include a pin member passed through an axial opening, such as a bolt or screw, which presses the first connector against the second connector in the insertion direction. Since radial forces that can act between the nested connectors, in particular by the abutting abutment surfaces are transferred, the pin member is hardly loaded on shear, which increases the durability of the pin member.
- the pin element is loaded almost exclusively on train. The pin element can pass through one of the two plug connectors (preferably the plug part) and be screwed into a thread arranged in the opening of the other plug connector (preferably the socket part).
- the invention can be suitably used for a converter having two juxtaposed connectors according to the invention in the form of socket parts.
- An input connector is for supplying a Input voltage, preferably a DC voltage, arranged to the inverter and an output connector is arranged for deriving a converted output voltage, preferably an AC voltage away from the inverter.
- a power supply cable for transmitting a DC voltage may have at its end a connector according to the invention in the form of a plug part which can be plugged into the input connector.
- the DC voltage can, for example, be converted into a three-phase AC voltage.
- the converted alternating voltage can be supplied by means of another cable to an electric motor, wherein the further cable has at its end another connector in the form of a plug part for insertion into the output connector.
- FIG. 1 shows a connector 100 designed as a connector according to the invention in a sectional view.
- the connector has an inner conductor 110 with an inner contact element, which is arranged in a receiving recess 112.
- the receiving recess is formed in such a manner in a front surface of the connector 100 that a protruding inner contact element of a mating connector in the receiving recess 112 can be inserted.
- This in Fig. 1 shown socket part has a total of two receiving recesses 112, in each of which an inner contact element is arranged, which is in each case conductively connected to an inner conductor 110.
- the two inner conductors 110 are peripherally surrounded by an outer conductor 120, which is formed by a part of the housing 135 of the connector 100. Since the housing 135 is formed of conductive aluminum, the inner conductors 110 are shielded by the circumferentially encircling housing 135. On the front surface of the connector, in which the receiving recesses 112 are formed, the outer conductor 120 has an outer contact element 130.
- the outer contact element 130 is formed in the form of a rigid ring element, which rests circumferentially on an inwardly directed, tubular wall surface of the housing 135.
- the outer contact member 130 is press-fitted to the housing 135 and therefore contacts the inwardly facing wall surface of the housing 135 closely and under pressure.
- This compression between the outer contact element 130 (also referred to as socket 130) and the housing 135 leads to an optimal, particularly low contact resistance between the two components, without the risk of contact corrosion.
- An inner shoulder 139 of the housing part 135 prevents the bush is pressed too far into the housing part 135 and leads to a further, substantially radially extending contact surface between the socket 130 and housing 135th
- the outer contact element 130 is made of brass, which may be nickel-plated and / or silvered, and the housing 135 is made of aluminum. This will be the Contact resistance is further reduced and a contact corrosion eliminated altogether.
- the outer contact element 130 is formed as a rigid metal element, i. it remains in place when plugging the mating connector 200, which can act upon insertion of the outer contact member 130 with an axially and / or radially acting force, in place and does not bend.
- resilient spring elements or the like may be attached to the contact element 130 or to the housing 135 in order to further improve the contacting.
- the outer contact element 130 has one in the axial sectional view of FIGS. 1 and 3 opposite to the insertion direction S obliquely at an angle of about 25 ° to 45 ° extending contact surface 132.
- the contact surface points inwards in the direction of the insertion opening for insertion of the mating connector and tapers in the insertion direction S in the manner of a cone.
- the contact surface is shaped in such a way that a counter-contact surface, which tapers conically at the same angle, of a mating connector comes into contact with it when it is plugged in. This surface contact leads to an effective shield transfer between the outer conductor 120 of the connector 100 and the outer conductor of a mating connector.
- the connector has an axially extending threaded opening 150 into which a threaded pin for fastening of plug connector and mating connector can engage.
- a second connector 200 according to the invention in the form of a plug part is described, which represents the complementarily shaped mating connector to the first connector 100 described above.
- the second connector is in the FIGS. 2 to 4 each shown on the left side.
- the plug part has two inner contact elements 211 formed as sword-shaped elements, which protrude starting from a front surface of the plug part in the plug-in direction S. At their rear end, the contact elements 211 are each connected to an inner conductor 210 or continue this.
- the inner ones Contact elements 211 are arranged to engage in the receiving recesses 112 of the female part described above and contact there in the plug state, the inner contact elements 111 of the inner conductor 110 of the female part.
- the inner conductors 210 are likewise surrounded by a common outer conductor 220, which shields the inner conductors toward the outside, and which consists of a housing part 235 of the second connector 200 as aluminum and of the outer contact element 230 pressed therewith.
- the outer contact element 230 is formed as a rigid, annular element made of possibly silver-plated and / or nickel-plated brass and, like the outer contact element 130 of the socket part, is pressed in a tubular pressing section of the housing 235.
- an axially extending pressing surface 236 of the outer contact member 230 which completely orbits the inner conductors, closely abuts the pressing portion of the housing 235.
- a radially extending contact surface 236 of the outer contact element 230 bears against a shoulder of the housing 235. This attachment results in a particularly low contact resistance between the outer contact element 230 and the housing 235, whereby contact corrosion over "lifetime" is prevented.
- the outer contact element of the plug part has an annular circumferential and outwardly directed contact surface 232 for engagement with the contact surface 132 of the socket part.
- the contact surface 232 tapers in the insertion direction S wedge-like at an angle of about 25 ° to 45 °, in particular about 30 °, with respect to the insertion direction S.
- the contact surface 232 can be pressed tightly and flat against the contact surface 132.
- This pressing takes place by means of a bolt element (not shown), which is screwed through an axial opening 250 of the connector 200 into the threaded opening 150 of the connector 100.
- the oblique course bearing surfaces 132, 232 leads firstly to an automatic centering of the connectors 100, 200 when tightening the bolt member and on the other to the fact that the bolt element is loaded only on train, but not on shear. Shear forces are instead transmitted via the contact surfaces extending at an acute angle relative to the insertion direction S and abutting one another.
- a sealing member 250 is disposed between the outer conductor 220 of the connector 200 and the outer conductor 120 of the connector 100, so that penetration of moisture into the interior of the connector is prevented.
- the effect of the sealing member 250 is in Fig. 4c shown particularly clearly.
- the sealing element may be made of silicone or a similar acting material.
- FIGS. 4a to 4c a plugging operation of the connector 200 is shown in the connector 100 in three stages.
- Fig. 4c showing the plug state, the abutment surfaces 132, 232 close to each other.
- the Schirmungspfad runs starting from the aluminum housing 235 of the connector 200 via the bold drawn pressing in the outer contact element 230 made of brass and further over the contact area of the two contact surfaces 132, 232 in the outer contact element 132 made of brass and further on the boldlined pressing point in the Housing 135 made of aluminum of the connector 100. This ensures an extremely low contact resistance while preventing corrosion over a long period of time.
- the shield transfer takes place in each case in the circumferential direction over the full 360 °.
- an inverter is shown, as it can be used, for example, to convert a battery DC voltage into an AC voltage for the engine of an electric vehicle.
- the converter has two plug connectors 100, 100 'according to the invention in the form of socket parts.
- the input connector 100 has two receiving recesses 112 and a central mounting hole 150 which are circulated by the outer conductor 120, while the output connector 100 'has three receiving recesses 112 and a decentralized mounting opening 150'.
- the two connectors 100, 100 'each include complementary connectors that are designed as connector parts.
- the plug-in part belonging to the input plug-in connector 100 has two inner contact elements designed as sword-shaped elements, and the plug-in part belonging to the output plug-in connector 100 'has three inner contact elements each designed as sword-shaped elements.
- More or less than two or three inner conductors and differently shaped inner conductor or inner contact elements are also conceivable. More or fewer attachment openings 150, 150 'or otherwise placed attachment openings and / or other fasteners as screws or bolts are also included in the invention.
- the ring element may be designed differently in the axial cross section, as long as it has the oblique contact surface.
Description
Die Erfindung betrifft einen Steckverbinder zum Verbinden mit einem komplementär geformten Gegensteckverbinder, insbesondere für Hochstrom- bzw. Hochspannungsanwendungen. Der Steckverbinder weist einen Innenleiter zum Leiten eines Hochstroms und einen den Innenleiter umlaufenden Außenleiter auf. Der Außenleiter dient zur Schirmung der davon umgebenen elektromagnetischen Felder. Der Außenleiter weist an einer Frontseite des Steckverbinders, die beim Verbinden einer Frontseite des Gegensteckverbinders zugewandt ist, ein äußeres Kontaktelement zur Schirmübergabe auf.The invention relates to a connector for connecting to a complementarily shaped mating connector, in particular for high current or high voltage applications. The connector has an inner conductor for conducting a high current and a peripheral conductor surrounding the inner conductor. The outer conductor serves to shield the electromagnetic fields surrounding it. The outer conductor has on a front side of the connector, which faces when connecting a front side of the mating connector, an outer contact element for screen transfer.
Steckverbinder dienen allgemein zum lösbaren Verbinden von elektrischen Leitungen, um im verbundenen Zustand Strom und/oder elektrische Signale zu übertragen. Dabei wird ein erster Steckverbinder in Form eines Buchsenteils mit einem zweiten Steckverbinder in Form eines Steckerteils zum Bilden einer Steckverbindung zusammengesteckt.Connectors generally serve to releasably connect electrical leads to carry power and / or electrical signals when connected. In this case, a first connector is plugged together in the form of a socket part with a second connector in the form of a plug part to form a plug connection.
Hochstromsteckverbinder dienen zum Übertragen von hohen elektrischen Strömen, bspw. mit einer Stromstärke von mehr als 100 A, wie etwa 200 A bis 400 A, und werden zum Beispiel in Kraftfahrzeugen mit Elektroantrieb oder Hybridantrieb eingesetzt. Dabei kann der Innenleiter des zweiten Steckverbinders, der als Steckerteil ausgeführt ist, ein in einer Steckrichtung vorstehendes Kontaktschwert oder einen Kontaktstift aufweisen, der in eine Aufnahmevertiefung des ersten Steckverbinders, der als Buchsenteil ausgeführt ist, zur elektrischen Kontaktierung von erstem Steckverbinder und zweitem Steckverbinder eingesteckt wird. In der Aufnahmevertiefung befindet sich ein inneres Kontaktelement des Innenleiters des Buchsenteils.
Dabei ist es wichtig, dass der von dem Innenleiter durchsetzte Raum nach außen hin möglichst vollständig abgeschirmt wird, um die Umgebung von der Einstrahlung elektromagnetischer Felder zu schützen, und um elektromagnetische Felder von dem Innenraum des Außenleiters fernzuhalten. Diese Abschirmung erfolgt durch den aus einem elektrisch leitenden Material gebildeten Außenleiter, der den Innenleiter im Allgemeinen rohrartig o. dgl. umläuft. Im Bereich einer Steckverbindung ist es wichtig, eine durchgängige Abschirmung durch eine Schirmübergabe zwischen dem Außenleiter des Steckverbinders (Buchsenteil) und dem Außenleiter des Gegensteckverbinders (Steckerteil) sicherzustellen, so dass keine elektromagnetischen Felder nach außen dringen können.
Deshalb besteht bei Hochstromsteckverbindern die Anforderung, dass bei niedrigem Bauraumbedarf eine zuverlässige elektrische Kontaktierung zwischen den Innenleitern und den Außenleitern von Steckverbinder und Gegensteckverbinder erzielt wird, wobei diese Kontaktierung gewährleisten soll, dass auch bei hoher Belastung mit mechanischen Vibrationen hohe elektrische Ströme geschirmt und funktionssicher übertragen werden, ohne dass dabei die Kontaktstellen einem Verschleiß unterworfen sind.
Bei herkömmlichen Steckverbindern erfolgt die Schirmübergabe durch in Einsteckrichtung vorstehende, federnd gelagerte Kontaktelemente, die beim Zusammenstecken in Anlage an eine umlaufende Kontaktfläche des Gegensteckverbinders kommen und daran in der Einsteckrichtung entlanggleiten, bis die inneren Kontaktelemente vollständig ineinander eingreifen.High-current connectors are used to transmit high electrical currents, for example, with a current greater than 100 A, such as 200 A to 400 A, and are used for example in electric or hybrid electric vehicles. In this case, the inner conductor of the second connector, which is designed as a plug part, a have in a plug-in direction protruding contact blade or a contact pin which is inserted into a receiving recess of the first connector, which is designed as a female part for electrical contacting of the first connector and second connector. In the receiving recess is an inner contact element of the inner conductor of the female part.
It is important that the space penetrated by the inner conductor is shielded as completely as possible from the outside in order to protect the environment from the irradiation of electromagnetic fields, and to keep electromagnetic fields from the interior of the outer conductor. This shielding is effected by the outer conductor formed from an electrically conductive material, which circumscribes the inner conductor generally like a tube or the like. In the area of a connector, it is important to ensure a continuous shielding by a screen transfer between the outer conductor of the connector (female part) and the outer conductor of the mating connector (connector part), so that no electromagnetic fields can escape to the outside.
Therefore, there is the requirement for high current connectors that with low space requirements, a reliable electrical contact between the inner conductors and the outer conductors of connector and mating connector is achieved, this contact is to ensure that high electrical currents are transmitted shielded and reliable even at high loads with mechanical vibration , without causing the contact points are subject to wear.
In conventional connectors, the screen transfer takes place in the plug-in direction protruding, spring-mounted contact elements that come into mating engagement with a circumferential contact surface of the mating connector and slide along it in the insertion until the inner contact elements fully interlock.
Dokument
In Anbetracht der beschriebenen Probleme ist es die Aufgabe der vorliegenden Erfindung, einen Steckverbinder mit erhöhter Haltbarkeit und zuverlässiger Abschirmung des Innenleiters bereitzustellen.In view of the described problems, it is the object of the present invention to provide a connector with increased durability and reliable shielding of the inner conductor.
Diese Aufgabe wird durch einen Steckverbinder nach Anspruch 1 gelöst. Unter einem starren Ringelement wird erfindungsgemäß verstanden, dass das Ringelement bei axialer und/oder radialer Krafteinwirkung auf das Ringelement nicht oder kaum nachgibt, sondern gegenüber dem Gehäuse des Steckverbinders ortsfest und unbewegt bleibt. Insbesondere ist das äußere Kontaktelement also nicht wie bei herkömmlichen Steckverbindern als federnder bzw. nachgiebiger Metallvorsprung nach Art einer oder mehrerer Blattfedern oder eines Drahtgeflechts gebildet, der beim Einstecken unter Vorspannung gesetzt wird und in schleifender Anlage an eine Kontaktfläche drückt. Vielmehr weist das äußere Kontaktelement eine umlaufende Anlagefläche auf, die zur flächigen Anlage an einer komplementär geformten Gegenanlagefläche des Gegensteckverbinders eingerichtet ist, gegen die sie in axialer Richtung gepresst werden kann.
Unter Ringelement wird ein in Umfangsrichtung umlaufendes Kontaktelement verstanden, durch dessen Inneres der Leitungspfad des Innenleiters im Steckzustand verläuft. Das Ringelement ist nicht notwendigerweise kreisringförmig, sondern kann den Innenleiter auch nach Art einer Ellipse, eines Ovals o.dgl. umlaufen.
Die Anlagefläche ist anders als bei herkömmlichen Steckverbindern in einer (vorzugsweise in jeder) axial durch das Zentrum des Steckverbinders verlaufenden Schnittebene gegenüber der Einsteckrichtung geneigt bzw. schräg eingerichtet. Mit anderen Worten verläuft die Anlagefläche weder parallel noch senkrecht zu der Einsteckrichtung. Somit kann die starr eingerichtete Anlagefläche in Axialrichtung gegen eine komplementär geformte Gegenanlagefläche gepresst werden, was zu einer besonders stabilen und reproduzierbaren Schirmübergabe führt. Aufgrund der Schräge der Anlagefläche ist weder ein axialer noch ein radialer Versatz des in einen Gegensteckverbinder gesteckten Steckverbinders möglich. Dies führt zusätzlich dazu, dass ein Großteil der im Steckzustand auf die Steckverbindung wirkenden Axial- und Radialkräfte über die aneinander anliegenden Anlageflächen übertragen wird, so dass ggf. zusätzlich vorhandene Befestigungselemente weniger stark in radialer Richtung auf Scherung belastet werden, was zu einer erhöhten Haltebarkeit des Steckverbinders insgesamt führt.
Die Schirmübergabe kann besonders zuverlässig erfolgen, wenn die Anlagefläche in einer axialen Schnittebene zumindest abschnittsweise unter einem Winkel von mehr als 10° und weniger als 80° gegenüber der Einsteckrichtung des Steckverbinders verläuft. Ein Winkel von etwa 30° hat sich als besonders günstig herausgestellt. Sowohl radial als auch axial wirkende Kräfte, die von dem Gegensteckverbinder ausgehen, können auf diese Weise wirksam in die Anlagefläche eingeleitet werden, so dass der Steckverbinder auf besonders stabile Weise mit einem Gegensteckverbinder verbunden werden kann. Ferner führt die unter einem spitzen Winkel gegenüber der Einsteckrichtung verlaufende Anlagefläche zu einer automatischen Zentrierung des Steckverbinders beim Einstecken in den Gegensteckverbinder.
Im Hinblick auf eine besonders gute Zentrierungswirkung beim Einstecken hat es sich als zweckmäßig erwiesen, dass sich die Anlagefläche in der Einsteckrichtung zumindest abschnittsweise konusförmig verjüngt oder aufweitet. Unter Einsteckrichtung wird dabei diejenige Richtung verstanden, in der ein als Steckerteil ausgeführter Steckverbinder zum Verkuppeln mit einem als Buchsenteil ausgeführten Steckverbinder in Richtung auf das Buchsenteil bewegt wird.
Dabei kann die Anlagefläche radial nach innen in Richtung auf eine Einstecköffnung oder radial nach außen gerichtet sein. Bei einem als Buchsenteil ausgeführten Steckverbinder ist es besonders vorteilhaft, wenn die Anlagefläche radial nach innen gerichtet ist und sich in der Einsteckrichtung konusartig verjüngt. Andererseits ist es bei einem als Steckerteil ausgeführten Steckverbinder besonders vorteilhaft, wenn die Anlagefläche radial nach außen gerichtet ist und sich in der Einsteckrichtung konusartig verjüngt. Die Verjüngungswinkel der Anlagefläche des Steckerteils und der Gegenanlagefläche des zugehörigen Buchsenteils gegenüber der Einsteckrichtung entsprechen einander, so dass eine flächige Anlage im Steckzustand erreichbar ist. Vorzugsweise beträgt der Winkel jeweils etwa 30° gegenüber der Einsteckrichtung.This object is achieved by a connector according to claim 1. Under a rigid ring member according to the invention is understood that the ring element with axial and / or radial force on the ring member is not or hardly yields, but remains stationary and unmoved relative to the housing of the connector. In particular, the outer contact element is therefore not formed as in conventional connectors as a resilient or resilient metal projection in the manner of one or more leaf springs or a wire mesh, which is set during insertion under bias and presses in abrading contact with a contact surface. Rather, the outer contact element on a circumferential contact surface, which is adapted for planar contact with a complementary shaped counter-contact surface of the mating connector, against which it can be pressed in the axial direction.
Ring element is understood to mean a circumferential contact element in the circumferential direction, through the interior of which the conduction path of the inner conductor extends in the plug state. The ring element is not necessarily circular, but may or the like the inner conductor in the manner of an ellipse, an oval. circulate.
The contact surface is unlike conventional connectors in a (preferably in each) axially extending through the center of the connector cutting plane with respect to the direction of insertion inclined or obliquely. In other words, the contact surface is neither parallel nor perpendicular to the insertion direction. Thus, the rigidly fixed contact surface in the axial direction against a complementarily shaped counter-contact surface are pressed, resulting in a particularly stable and reproducible screen transfer. Due to the slope of the contact surface, neither an axial nor a radial offset of the connector plugged into a mating connector is possible. This leads in addition to the fact that a large part of the axial and radial forces acting in the plug state on the abutting contact surfaces is transferred, so that possibly additionally existing fasteners are less heavily loaded in the radial direction to shear, resulting in an increased holdability of Connector leads total.
The shield transfer can be particularly reliable if the contact surface extends in an axial sectional plane at least partially at an angle of more than 10 ° and less than 80 ° relative to the insertion of the connector. An angle of about 30 ° has been found to be particularly favorable. Both radially and axially acting forces emanating from the mating connector can be effectively introduced into the contact surface in this way, so that the connector can be connected in a particularly stable manner with a mating connector. Furthermore, the contact surface running at an acute angle relative to the insertion direction leads to an automatic centering of the connector when inserted into the mating connector.
With regard to a particularly good centering effect during insertion, it has proven to be expedient that the contact surface in the insertion direction at least partially tapers conically or expands. Plug-in direction is understood to be that direction in which a connector designed as a plug connector is moved for coupling with a connector designed as a plug connector in the direction of the socket part.
In this case, the contact surface can be directed radially inwards in the direction of an insertion opening or radially outwards. In a connector designed as a connector, it is particularly advantageous if the contact surface is directed radially inward and tapers like a cone in the insertion direction. On the other hand, it is particularly advantageous in a connector designed as a plug connector when the Contact surface is directed radially outward and tapers conically in the plug. The taper angle of the contact surface of the plug part and the counter-contact surface of the associated socket part with respect to the insertion direction correspond to each other, so that a flat contact in the plug state can be achieved. Preferably, the angle is in each case about 30 ° relative to the insertion direction.
Das starre Ringelement des äußeren Kontaktelements kann im Wesentlichen kreisringförmig sein mit einem Innendurchmesser von mehr als 4 cm, bevorzugt mehr als 6 cm, insbesondere etwa 8 cm oder mehr. Eine Abmessung der Anlagefläche in einer durch das Ringzentrum verlaufenden axialen Schnittebene kann mehr als 1 cm, insbesondere mehr als 1,5 cm und weniger als 3 cm betragen. Eine großflächige Anlagefläche führt zu einer besonders stabilen Anlage an dem Gegensteckverbinder und damit zu einer sicheren und fehlstellenfreien Schirmungsübergabe.The rigid ring element of the outer contact element may be substantially annular with an inner diameter of more than 4 cm, preferably more than 6 cm, in particular about 8 cm or more. A dimension of the contact surface in an axial section plane running through the center of the ring can be more than 1 cm, in particular more than 1.5 cm and less than 3 cm. A large contact surface leads to a particularly stable system on the mating connector and thus to a safe and fault-free Schirmungsübergabe.
Gemäß einem weiteren, besonders wichtigen Gesichtspunkt der vorliegenden Erfindung ist das äußere Kontaktelement an einem elektrisch leitenden Gehäuseteil des Steckverbinders zur Schirmübergabe zwischen dem äußeren Kontaktelement und dem leitenden Gehäuseteil bevorzugt durch Verpressung befestigt. Mit anderen Worten ist das äußere Kontaktelement ein separates Bauteil, das mit einem leitenden Gehäuseteil des Steckverbinders verpresst ist. Eine Verpressung führt zu einer großflächigen und eng kontaktierenden Anlage zwischen dem ringförmigen Kontaktelement und dem Gehäuseteil, was im Hinblick auf eine gute Schirmübergabe vorteilhaft ist. Ferner ist eine Verpressung bei der Herstellung des Steckverbinders besonders schnell und einfach durchführbar.According to a further, particularly important aspect of the present invention, the outer contact element is preferably secured to an electrically conductive housing part of the connector for shield transfer between the outer contact element and the conductive housing part by compression. In other words, the outer contact element is a separate component, which is pressed with a conductive housing part of the connector. A compression leads to a large-area and closely contacting system between the annular contact element and the housing part, which is advantageous in terms of a good screen transfer. Furthermore, a compression in the production of the connector is particularly fast and easy to carry out.
Dies führt dazu, dass der Schirmungspfad von dem Gehäuseteil des ersten Steckverbinders über das äußere Kontaktelement des ersten Steckverbinders über das äußere Kontaktelement des zweiten Steckverbinders zu dem Gehäuseteil des zweiten Steckverbinders verläuft. Ein direkter Kontakt der beiden Gehäuseteile wird dabei vorteilhafterweise vermieden. Bei jeder dieser Verbindungen ist erfindungsgemäß eine großflächige Anlage über den gesamten Umfang des Außenleiters von 360° in Umfangsrichtung sichergestellt.As a result, the shielding path extends from the housing part of the first connector via the outer contact element of the first connector via the outer contact element of the second connector to the housing part of the second connector. A direct contact of the two housing parts is advantageously avoided. In each of these compounds according to the invention a large-scale system over the entire circumference of the outer conductor of 360 ° in the circumferential direction is ensured.
Zu diesem Zweck kann das äußere Kontaktelement neben der schräg zu der Einsteckrichtung verlaufenden Anlagefläche eine vorzugsweise in der Steckrichtung und/oder senkrecht dazu verlaufende Befestigungsfläche aufweisen, die umlaufend an dem Gehäuseteil anliegt. Die Befestigungsfläche des äußeren Kontaktelements ist an einen komplementär dazu eingerichteten Verpressungsabschnitt des Gehäuseteils angepresst. Deswegen weist eine etwa kreiszylinderförmige Befestigungsfläche des Ringelements einen minimal größeren Durchmesser auf als eine rohrförmige Einstecköffnung des Gehäuseteils, so dass das Ringelement in diese Öffnung eingepresst werden kann.
Dabei kann das Gehäuseteil aus Aluminium gebildet sein. Ein Aluminiumgehäuse ist besonders einfach und kostengünstig herstellbar und kann aufgrund seiner leitenden Eigenschaften als Außenleiter wirken.
Bei herkömmlichen Steckverbindern sind die äußeren Kontaktelemente oftmals einteilig mit dem Gehäuseteil aus Aluminium gebildet, so dass sich der Steckverbinder und der Gegensteckverbinder über zwei Aluminiumflächen kontaktieren. Allerdings weist eine Aluminium-auf-Aluminiumverbindung einen hohen Kontaktwiderstand auf, der sich mit der Zeit aufgrund einer möglichen Oxidation noch erhöht.
In diesem Zusammenhang hat es sich zur Verringerung des Kontaktwiderstands bei der Schirmübergabe zwischen Steckverbinder und Gegensteckverbinder als besonders vorteilhaft herausgestellt, wenn das äußere Kontaktelement aus Messing und/oder Bronze gebildet ist. Eine Fertigung des ringförmigen äußeren Kontaktelements aus Messung und/oder Bronze ist erfindungsgemäß ohne weiteres möglich, da dieses als getrenntes Bauteil herstellbar ist und anschließend mit dem Aluminium-Gehäuseteil bspw. durch Verpressung verbunden werden kann.
Der Kontaktwiderstand kann erfindungsgemäß besonders stark verringert und eine Oxidation der Oberfläche gleichzeig vermieden werden, wenn die Oberfläche des äußeren Kontaktelements insbesondere im Bereich der Anlagefläche vernickelt und/oder versilbert ist. Alternativ kann aber auch die gesamte äußere Begrenzungsfläche des äußeren Kontaktelements vernickelt und/oder versilbert werden.
In einer besonders bevorzugten Ausführungsform weist der erfindungsgemäße Steckverbinder zwei, drei oder mehr von dem Außenleiter umlaufene Innenleiter mit jeweils einem inneren Kontaktelement zur elektrischen Kontaktierung eines zugehörigen inneren Kontaktelements eines Gegensteckverbinders auf. Ein erster Innenleiter kann ein stromführender Leiter und ein zweiter Innenleiter kann ein Masseleiter sein, oder beide Innenleiter können alternativ stromführend sein. Im Fall von drei Innenleitern kann bspw. eine Hochstrom-Drehspannung übertragen werden. Aufgrund der gemeinsamen Abschirmung aller Innenleiter über den umlaufenden Außenleiters ist eine kompakte Gesamtanordnung des Steckverbinders bzw. der Steckverbindung möglich.For this purpose, the outer contact element in addition to the obliquely to the insertion direction extending contact surface preferably in the insertion direction and / or have perpendicularly extending attachment surface which rests circumferentially on the housing part. The attachment surface of the outer contact element is pressed against a complementary thereto arranged compression portion of the housing part. Therefore, an approximately circular cylindrical mounting surface of the ring member has a minimally larger diameter than a tubular insertion opening of the housing part, so that the ring member can be pressed into this opening.
In this case, the housing part may be formed of aluminum. An aluminum housing is particularly simple and inexpensive to produce and can act as an outer conductor due to its conductive properties.
In conventional connectors, the outer contact elements are often formed integrally with the housing part made of aluminum, so that the connector and the mating connector contact via two aluminum surfaces. However, an aluminum-on-aluminum compound has a high contact resistance, which increases with time due to possible oxidation.
In this context, it has been found to reduce the contact resistance in the shield transfer between connector and mating connector particularly advantageous when the outer contact element of brass and / or bronze is formed. A production of the annular outer contact element of measurement and / or bronze is readily possible according to the invention, since this can be produced as a separate component and can then be connected to the aluminum housing part, for example by pressing.
The contact resistance can be particularly greatly reduced according to the invention and oxidation of the surface can be avoided simultaneously if the surface of the outer contact element is nickel-plated and / or silvered, in particular in the region of the contact surface. Alternatively, however, the entire outer boundary surface of the outer contact element can be nickel-plated and / or silver-plated.
In a particularly preferred embodiment, the connector according to the invention has two, three or more inner conductors circumscribed by the outer conductor in each case an inner contact element for electrically contacting an associated inner contact element of a mating connector. A first inner conductor may be a live conductor and a second inner conductor may be a ground conductor, or both inner conductors may alternatively be live. In the case of three inner conductors, for example, a high-current rotary voltage can be transmitted. Due to the common shielding of all inner conductors on the peripheral outer conductor a compact overall arrangement of the connector or the connector is possible.
In einer ersten Ausführungsform der Erfindung ist der erfindungsgemäße Steckverbinder in Form eines Steckerteils mit mindestens einem in der Einsteckrichtung vorstehenden stift- oder schwertförmigen inneren Kontaktelement des Innenleiters gebildet, wobei die schräge Anlagefläche vorzugsweise radial nach außen gerichtet ist und sich in der Einsteckrichtung konusartig verjüngt.In a first embodiment of the invention, the connector according to the invention in the form of a plug part is formed with at least one protruding in the insertion direction pin or sword-shaped inner contact element of the inner conductor, wherein the inclined contact surface is preferably directed radially outward and tapers like a cone in the plug.
In einer zweiten Ausführungsform der Erfindung ist der erfindungsgemäße Steckverbinder in Form in eines Buchsenteils mit mindestens einer Aufnahmevertiefung zur Aufnahme eines stift- oder schwertförmigen Kontaktelements eines Steckerteils eingerichtet, wobei die Anlagefläche vorzugsweise radial nach innen gerichtet ist und sich in der Einsteckrichtung konusartig verjüngt.In a second embodiment of the invention, the connector according to the invention is arranged in the form of a socket part with at least one receiving recess for receiving a pin or sword-shaped contact element of a plug part, wherein the contact surface is preferably directed radially inward and tapers conically in the plugging direction.
Gemäß einem weiteren Gesichtspunkt betrifft die Erfindung eine aus zwei erfindungsgemäßen Steckverbindern gebildete Steckverbindung für Hochstromanwendungen. Der erste Steckverbinder ist als Buchsenteil gebildet und der zweite Steckverbinder ist als Steckerteil gebildet. Das Buchsenteil und das Steckerteil werden miteinander verbunden, indem das Steckerteil in der Einführrichtung in das Buchsenteil eingeführt wird. Im zusammengesteckten Zustand kontaktieren sich die beiden jeweils als starre Ringelemente gebildeten äußeren Kontaktelemente elektrisch derart, dass die Anlagefläche des ersten Steckverbinders flächig an der Anlagefläche des zweiten Steckverbinders anliegt. Aufgrund des schrägen Verlaufs der beiden Anlageflächen in einer axial durch das Zentrum der Steckverbindung verlaufenden Schnittebene und aufgrund der Starrheit der äußeren Kontaktelemente ist ein Versatz der beiden Steckverbinder weder in axialer noch in radialer Richtung möglich. Dies führt zu einer besonders zuverlässigen und haltbaren Schirmübergabe.According to a further aspect, the invention relates to a connector for high-current applications formed from two connectors according to the invention. The first connector is formed as a female part and the second connector is formed as a plug part. The female part and the male part are connected to each other by inserting the male part in the insertion direction into the female part. In the assembled state, the two outer contact elements each formed as rigid ring elements contact each other electrically such that the contact surface of the first connector rests flat against the contact surface of the second connector. Due to the oblique course of the two contact surfaces in an axially extending through the center of the connector cutting plane and due to the rigidity of the outer contact elements, an offset of the two connectors is possible neither in the axial nor in the radial direction. This leads to a particularly reliable and durable screen transfer.
Der flächige Kontakt zwischen den beiden Anlageflächen kann dadurch zustande kommen, dass die Anlagefläche des ersten Steckverbinders radial nach innen zeigt und sich in der Einsteckrichtung konusartig verjüngt, während die Anlagefläche des zweiten Steckverbinders radial nach außen zeigt und sich unter demselben Winkel in der Einsteckrichtung konusartig verjüngt. Der Winkel zwischen der Anlagefläche und der Steckachse in der axialen Schnittebene beträgt umlaufend vorzugsweise etwa 30°. Dies führt zu einer besonders guten Zentrierungswirkung beim Zusammenstecken der Steckverbinder.The surface contact between the two contact surfaces can be achieved by the fact that the contact surface of the first connector is pointing radially inwardly and conically tapered in the plug, while the contact surface of the second connector radially outward and tapers conically at the same angle in the plug , The angle between the contact surface and the plug-in axis in the axial sectional plane is circumferentially preferably about 30 °. This leads to a particularly good centering effect when mating the connector.
Im Hinblick auf die für die äußeren Kontaktelemente und die Gehäuseteile der Steckverbinder zu verwendenden Materialien sowie im Hinblick auf die Befestigung der äußeren Kontaktelemente an den Gehäuseteilen wird auf die obigen Ausführungen verwiesen.With regard to the materials to be used for the outer contact elements and the housing parts of the plug connectors as well as with regard to the attachment of the outer contact elements to the housing parts, reference is made to the above statements.
Die Steckverbindung kann durch ein in der Steckrichtung zumindest abschnittsweise durch den ersten Steckverbinder und den zweiten Steckverbinder verlaufendes Befestigungsmittel zum kraft- und/oder formschlüssigen Fixieren der Steckverbindung besonders sicher im Steckzustand gehalten werden. Mithilfe des Befestigungsmittels können die Anlageflächen der beiden Steckverbinder mit einer vorgegebenen axialen Kraft aneinandergepresst werden.The connector can be held by a in the plugging direction at least partially extending through the first connector and the second connector fastener for non-positive and / or positive locking of the connector particularly safe in the plug state. By means of the fastening means, the contact surfaces of the two connectors can be pressed against each other with a predetermined axial force.
Zu diesem Zweck können der erste und der zweite Steckverbinder ein durch eine axiale Öffnung geführtes Stiftelement wie etwa einen Bolzen oder eine Schraube aufweisen, die den ersten Steckverbinder in der Steckrichtung gegen den zweiten Steckverbinder presst. Da radiale Kräfte, die zwischen den ineinandergesteckten Steckverbindern wirken können, insbesondere durch die schräg aneinander anliegenden Anlageflächen übertragen werden, wird das Stiftelement kaum auf Scherung belastet, was die Haltbarkeit des Stiftelements erhöht. Das Stiftelement wird praktisch ausschließlich auf Zug belastet. Das Stiftelement kann einen der beiden Steckverbinder (vorzugsweise das Steckerteil) durchgreifen und in ein in der Öffnung des anderen Steckverbinders (vorzugsweise des Buchsenteils) angeordnetes Gewinde eingeschraubt werden.For this purpose, the first and second connectors may include a pin member passed through an axial opening, such as a bolt or screw, which presses the first connector against the second connector in the insertion direction. Since radial forces that can act between the nested connectors, in particular by the abutting abutment surfaces are transferred, the pin member is hardly loaded on shear, which increases the durability of the pin member. The pin element is loaded almost exclusively on train. The pin element can pass through one of the two plug connectors (preferably the plug part) and be screwed into a thread arranged in the opening of the other plug connector (preferably the socket part).
Die Erfindung kann zweckmäßigerweise für einen Umrichter verwendet werden, der zwei nebeneinander angeordnete erfindungsgemäße Steckverbinder in Form von Buchsenteilen aufweist. Ein Eingangs-Steckverbinder ist zur Zuführung einer Eingangsspannung, vorzugsweise einer Gleichspannung, zu dem Umrichter eingerichtet und ein Ausgangs-Steckverbinder ist zum Ableiten einer umgerichteten Ausgangsspannung, vorzugsweise einer Wechselspannung, von dem Umrichter weg eingerichtet. Ein Stromversorgungskabel zur Übertragung einer Gleichspannung kann an seinem Ende einen erfindungsgemäßen Steckverbinder in Form eines Steckerteils aufweisen, das in den Eingangs-Steckverbinder steckbar ist. In dem Umrichter kann die Gleichspannung bspw. in eine Drehstrom-Wechselspannung umgerichtet werden. Die umgerichtete Wechselspannung kann mithilfe eines weiteren Kabels einem Elektromotor zugeführt werden, wobei das weitere Kabel an seinem Ende einen weiteren Steckverbinder in Form eines Steckerteils zum Einstecken in den Ausgangs-Steckverbinder aufweist.The invention can be suitably used for a converter having two juxtaposed connectors according to the invention in the form of socket parts. An input connector is for supplying a Input voltage, preferably a DC voltage, arranged to the inverter and an output connector is arranged for deriving a converted output voltage, preferably an AC voltage away from the inverter. A power supply cable for transmitting a DC voltage may have at its end a connector according to the invention in the form of a plug part which can be plugged into the input connector. In the inverter, the DC voltage can, for example, be converted into a three-phase AC voltage. The converted alternating voltage can be supplied by means of another cable to an electric motor, wherein the further cable has at its end another connector in the form of a plug part for insertion into the output connector.
In der folgenden Beschreibung wird die Erfindung unter Bezugnahme auf die in den beigefügten Zeichnungen dargestellten Ausführungsformen erläutert. In den Zeichnungen zeigt:
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Fig. 1a eine Querschnittansicht eines ersten erfindungsgemäßen Steckverbinders 100 in Form eines Buchsenteils, wobei die Schnittebene in axialer Richtung durch das Zentrum des Steckverbinders verläuft, -
Fig. 1b eine teilweise als Schnittdarstellung ausgeführte perspektivische Ansicht des inFig. 1a gezeigten Buchsenteils, -
Fig. 2 eine Querschnittansicht durch den inFig. 1 gezeigten erfindungsgemäßen Steckverbinder 100 in Form eines Buchsenteils und einen zweiten erfindungsgemäßen Steckverbinder 200 in Form eines Steckerteils, -
Fig. 3 einen vergrößerten Ausschnitt der inFig. 2 100, 200 kurz vor dem Einstecken des Steckerteils in das Buchsenteil,gezeigten Steckverbinder -
Fig. 4 drei Querschnittansichten einer erfindungsgemäßen Steckverbindung aus Buchsenteil und Steckerteil zur Veranschaulichung des Einsteckvorgangs, -
Fig. 5 einen Umrichter 1000 mit zwei erfindungsgemäßen Steckverbindern 100, 100' in einer Ansicht von vorne.
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Fig. 1a 1 is a cross-sectional view of afirst connector 100 according to the invention in the form of a socket part, wherein the sectional plane extends in the axial direction through the center of the connector, -
Fig. 1b a partially sectioned perspective view of the inFig. 1a shown socket part, -
Fig. 2 a cross-sectional view through the inFig. 1 shownconnector 100 according to the invention in the form of a female part and asecond connector 200 according to the invention in the form of a plug part, -
Fig. 3 an enlarged section of the inFig. 2 shown 100, 200 just before plugging the plug part into the socket part,connector -
Fig. 4 three cross-sectional views of a plug-in connection according to the invention from the socket part and plug part to illustrate the insertion process, -
Fig. 5 aninverter 1000 with twoconnectors 100 according to the invention, 100 'in a view from the front.
Das in
Die beiden Innenleiter 110 sind umlaufend von einem Außenleiter 120 umgeben, der durch einen Teil des Gehäuses 135 des Steckverbinders 100 gebildet wird. Da das Gehäuse 135 aus leitendem Aluminium gebildet ist, werden die Innenleiter 110 durch das in Umfangsrichtung umlaufende Gehäuse 135 abgeschirmt. An der Frontfläche des Steckverbinders, in der die Aufnahmevertiefungen 112 gebildet sind, weist der Außenleiter 120 ein äußeres Kontaktelement 130 auf.The two
Das äußere Kontaktelement 130 ist in Form eines starren Ringelements gebildet, das umlaufend an einer nach innen gerichteten, rohrförmigen Wandfläche des Gehäuses 135 anliegt. Das äußere Kontaktelement 130 ist durch Verpressung an dem Gehäuse 135 befestigt und kontaktiert deshalb die nach innen gerichtete Wandfläche des Gehäuses 135 eng und unter Druck. Diese Verpressung zwischen dem äußeren Kontaktelement 130 (auch als Buchse 130 bezeichnet) und dem Gehäuse 135 führt zu einem optimalen, besonders geringen Kontaktwiderstand zwischen den beiden Bauteilen, ohne dass die Gefahr einer Kontaktkorrosion besteht. Ein innerer Absatz 139 des Gehäuseteils 135 verhindert, dass die Buchse zu weit in das Gehäuseteil 135 hineingedrückt wird und führt zu einer weiteren, im Wesentlichen radial verlaufenden Kontaktfläche zwischen Buchse 130 und Gehäuse 135.The
Das äußere Kontaktelement 130 besteht aus Messing, das vernickelt und/oder versilbert sein kann, und das Gehäuse 135 besteht aus Aluminium. Dadurch wird der Kontaktwiderstand weiter verringert und eine Kontaktkorrosion gänzlich ausgeschlossen.The
Das äußere Kontaktelement 130 ist als starres Metallelement gebildet, d.h. es verbleibt bei dem Einstecken des Gegensteckverbinders 200, der beim Einstecken das äußere Kontaktelement 130 mit einer axial und/oder radial wirkenden Kraft beaufschlagen kann, an Ort und Stelle und verbiegt sich nicht. Zusätzlich können aber ggf. nachgiebige Federelemente o. dgl. an dem Kontaktelement 130 oder an dem Gehäuse 135 angebracht sein, um die Kontaktierung noch weiter zu verbessern.The
Das äußere Kontaktelement 130 weist eine in der axialen Schnittdarstellung der
Ferner weist der Steckverbinder eine axial verlaufende Gewindeöffnung 150 auf, in die ein Gewindestift zur Befestigung von Steckverbinder und Gegensteckverbinder eingreifen kann.Furthermore, the connector has an axially extending threaded
Im Folgenden wird ein zweiter erfindungsgemäßer Steckverbinder 200 in Form eines Steckerteils beschrieben, der den komplementär geformten Gegensteckverbinder zu dem oben beschriebenen ersten Steckverbinder 100 darstellt. Der zweite Steckverbinder ist in den
Das Steckerteil weist zwei als schwertförmige Elemente gebildete innere Kontaktelemente 211 auf, die ausgehend von einer Frontfläche des Steckerteils in der Einsteckrichtung S vorstehen. An ihrem hinteren Ende sind die Kontaktelemente 211 jeweils mit einem Innenleiter 210 verbunden bzw. setzen diesen fort. Die inneren Kontaktelemente 211 sind zum Eingreifen in die Aufnahmevertiefungen 112 des oben beschriebenen Buchsenteils eingerichtet und kontaktieren dort im Steckzustand die inneren Kontaktelemente 111 des Innenleiters 110 des Buchsenteils.The plug part has two
Die Innenleiter 210 werden ebenfalls von einem gemeinsamen Außenleiter 220 umgeben, der die Innenleiter nach außen hin abschirmt, und der zum einen aus einem Gehäuseteil 235 des zweiten Steckverbinders 200 als Aluminium und zum anderen aus dem damit verpressten äußeren Kontaktelement 230 besteht. Das äußere Kontaktelement 230 ist als starres, ringförmiges Element aus ggf. versilbertem und/oder vernickeltem Messing gebildet und ist ebenso wie das äußere Kontaktelement 130 des Buchsenteils in einem rohrförmigen Pressabschnitt des Gehäuses 235 verpresst. Damit liegt eine in axialer Richtung verlaufende Pressfläche 236 des äußeren Kontaktelements 230, die die Innenleiter vollständig umläuft, eng an dem Pressabschnitt des Gehäuses 235 an. Eine radial verlaufende Kontaktfläche 236 des äußeren Kontaktelements 230 liegt an einem Absatz des Gehäuses 235 an. Diese Befestigung führt zu einem besonders geringen Kontaktwiderstand zwischen dem äußeren Kontaktelement 230 und dem Gehäuse 235, wobei eine Kontaktkorrosion über "lifetime" verhindert wird.The
Das äußere Kontaktelement des Steckerteils weist eine ringförmig umlaufende und nach außen gerichtete Anlagefläche 232 zur Anlage an der Anlagefläche 132 des Buchsenteils auf. Die Anlagefläche 232 verjüngt sich in der Einsteckrichtung S keilartig unter einem Winkel von etwa 25° bis 45°, insbesondere etwa 30°, gegenüber der Einsteckrichtung S. Somit kann die Anlagefläche 232 eng und flächig an die Anlagefläche 132 angepresst werden.The outer contact element of the plug part has an annular circumferential and outwardly directed
Diese Anpressung erfolgt mithilfe eines Bolzenelements (nicht dargestellt), das durch eine axiale Öffnung 250 des Steckverbinders 200 in die Gewindeöffnung 150 des Steckverbinders 100 eingeschraubt wird. Der schräge Verlauf Anlageflächen 132, 232 führt zum einen zu einer automatischen Zentrierung der Steckverbinder 100, 200 beim Festziehen des Bolzenelements und zum anderen dazu, dass das Bolzenelement nur auf Zug, aber nicht auf Scherung belastet wird. Scherkräfte werden vielmehr über die unter einem spitzen Winkel gegenüber der Einsteckrichtung S verlaufenden und aneinander anliegenden Anlageflächen übertragen.This pressing takes place by means of a bolt element (not shown), which is screwed through an
Ein Dichtungselement 250 ist zwischen dem Außenleiter 220 des Steckverbinders 200 und dem Außenleiter 120 des Steckverbinders 100 angeordnet, so dass ein Eindringen von Feuchtigkeit in das Innere der Steckverbindung verhindert wird. Die Wirkung des Dichtungselements 250 ist in
In den
Die Schirmübergabe erfolgt dabei jeweils in Umfangsrichtung über die vollen 360°.The shield transfer takes place in each case in the circumferential direction over the full 360 °.
In
Mehr oder weniger als zwei bzw. drei Innenleiter sowie anders geformte Innenleiter bzw. innere Kontaktelemente sind ebenso vorstellbar. Mehr oder weniger Befestigungsöffnungen 150, 150' bzw. anders platzierte Befestigungsöffnungen und/oder andere Befestigungselemente als Schrauben oder Bolzen sind von der Erfindung ebenfalls umfasst. Das Ringelement kann im axialen Querschnitt anders gestaltet sein, solange es die schräge Anlagefläche aufweist.More or less than two or three inner conductors and differently shaped inner conductor or inner contact elements are also conceivable. More or
Claims (14)
- Insertion-type connector (100; 200) for connection to a complementarily shaped mating insertion-type connector (200; 100), the insertion-type connector having an inner conductor (110; 210) to carry a high current and an outer conductor (120; 220), extending around the inner conductor, which has, at a front end of the insertion-type connector, an outer contact member (130; 230) to make a shield connection,
the outer contact member (130; 230) taking the form of a rigid annular member which has, for the purpose of making the shield connection, a contact-making surface (132; 232), extending round in a circumferential direction, for making contact over an area with a complementarily shaped mating contact-making surface (232; 132) of the mating insertion-type connector,
the contact-making surface extending obliquely to a direction of insertion (S) of the insertion-type connector, characterised in that the outer contact member (130; 230) is pressed into a tubular portion of the electrically conductive shell part (135; 235) of the insertion-type connector to make a shield connection between the outer contact member (130; 230) and the conductive shell part (135; 235). - Insertion-type connector according to claim 1, characterised in that at least a portion or portions of the contact-making surface (132; 232) extend at an angle (α) of more than 10° and at an angle of less than 80° to the direction of insertion (S) of the insertion-type connector.
- Insertion-type connector according to claim 1 or 2, characterised in that at least a portion or portions of the contact-making surface (132; 232) taper or flare conically in the direction of insertion (S).
- Insertion-type connector according to one of the preceding claims, characterised in that the contact-making surface (132) faces radially inwards in the direction of an insertion opening, or in that the contact-making surface (232) faces radially outwards.
- Insertion-type connector according to one of the preceding claims, characterised in that the outer contact member (130; 230) has, as well as the obliquely extending contact-making surface (132; 232), a surface for fastening (136; 236) which preferably extends in the direction of insertion (S) and/or perpendicularly thereto and which bears against the shell part (135; 235) in a loop.
- Insertion-type connector according to one of the preceding claims, characterised in that the shell part (135; 235) is formed of aluminium.
- Insertion-type connector according to one of the preceding claims, characterised in that the outer contact member (130; 230) is formed of brass and/or bronze, the surface of which is preferably nickel-plated and/or silver-plated particularly in the region of the contact-making surface (132; 232).
- Insertion-type connector according to one of the preceding claims, characterised by two, three, or more inner conductors (110; 210) around which the outer conductor (120; 220) extends, each having respective an inner contact member (111; 211) for making electrical contact with an inner contact member (211; 111) of a mating insertion-type connector.
- Insertion-type connector according to one of the preceding claims in the form of a plug-in part (200) having at least one inner contact member (211), in pin or blade form, belonging to the inner conductor (210), which inner contact member (211) projects in the direction of insertion, the contact-making surface (232) facing radially outwards and tapering conically in the direction of insertion (S).
- Insertion-type connector according to one of claims 1 to 8 in the form of a socket part (100) having at least one receiving recess (112) to receive a contact member in pin or blade form of a plug-in part (100), the contact-making surface (132) facing radially inwards and tapering conically in the direction of insertion (S) in which a plug part (200) can be introduced into the socket part (100).
- Insertion-type connection for high-current applications having a first insertion-type connector (100) according to one of claims 1 to 8, and a second insertion (200) according to one of claims 1 to 8 as a mating insertion-type connector, the two outer contact members (130, 230), which take the form of respective rigid annular members, making electrical contact with one another in a plugged-together state in such a way that the contact-making surface (132) of the first insertion-type connector bears against the contact-making surface (232) of the mating insertion-type connector over an area.
- Insertion-type connection according to claim 11, characterised by a fastening means at least a portion or portions of which extend through the first insertion-type connector and the second insertion-type connector in the direction of insertion (S), for fixing the insertion-type connection in the plugged-together state by friction and/or positive interengagement.
- Insertion-type connection according to claim 12, characterised in that the fastening means has a rod-like member, such as a pin, screw or bolt, which is guided by an axial opening (150, 250) in the first insertion-type connector and in the second insertion-type connector and which presses the second insertion-type connector (200) against the first insertion-type connector (100) in the direction of insertion (S).
- Power converter (1000) having two insertion-type connectors (100, 100') according to claim 8 arranged next to one another, of which the input insertion-type connector (100) is orientated towards the converter to feed in an input voltage and preferably a d.c. voltage, and the output insertion-type connector (100') is orientated away from the converter to feed out a rectified output voltage and preferably an a.c. voltage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202014000299.1U DE202014000299U1 (en) | 2014-01-10 | 2014-01-10 | HV interface with centering |
PCT/EP2014/002908 WO2015104033A1 (en) | 2014-01-10 | 2014-10-29 | Hv-interface having centreing |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3092688A1 EP3092688A1 (en) | 2016-11-16 |
EP3092688B1 true EP3092688B1 (en) | 2018-04-04 |
Family
ID=50437416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14792394.0A Active EP3092688B1 (en) | 2014-01-10 | 2014-10-29 | Hv-interface having centreing |
Country Status (8)
Country | Link |
---|---|
US (1) | US9843138B2 (en) |
EP (1) | EP3092688B1 (en) |
JP (1) | JP6351733B2 (en) |
KR (1) | KR20160107164A (en) |
CN (1) | CN105900291B (en) |
CA (1) | CA2933385A1 (en) |
DE (1) | DE202014000299U1 (en) |
WO (1) | WO2015104033A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016005508A1 (en) * | 2016-05-04 | 2017-11-09 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | High-voltage connector |
WO2020091122A1 (en) | 2018-11-02 | 2020-05-07 | 한국로봇융합연구원 | Deep-learning method and system in which parallel processing of plurality of learning models is performed using time-series data divided according to frequency components |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4244641C1 (en) | 1992-02-27 | 1993-08-05 | Spinner Gmbh Elektrotechnische Fabrik, 8000 Muenchen, De | Coaxial cable plug connector for signal transmission - establishes contact between outer contact and screening by screw -loaded contact ring which can also include sealing ring |
US5921801A (en) * | 1996-11-25 | 1999-07-13 | Molex Incorporated | Retention system for electrical connectors |
SE510051C2 (en) * | 1998-02-17 | 1999-04-12 | Teracom Components Ab | Contact device for high frequency cables |
US6561848B1 (en) * | 2002-01-18 | 2003-05-13 | Adc Telecommunications, Inc. | Triaxial connector adapter and method |
DE10335866A1 (en) * | 2003-08-06 | 2005-03-03 | Volkswagen Ag | Kraftfahrzeugumrichter |
US7309247B1 (en) | 2006-05-23 | 2007-12-18 | Micro-Coax | Cable interconnect |
DE102008012251A1 (en) | 2008-03-03 | 2009-09-10 | Tefkom Gmbh | Coaxial plug connector i.e. high frequency plug connector, for e.g. coupler, has plug connector insert moved opposite to plug connector body in installation condition in axial direction, where insert is secured in body by rings and disk |
US8449327B2 (en) * | 2008-11-05 | 2013-05-28 | Andrew Llc | Interleaved outer conductor spring contact for a coaxial connector |
US8025518B2 (en) * | 2009-02-24 | 2011-09-27 | Corning Gilbert Inc. | Coaxial connector with dual-grip nut |
US8517763B2 (en) * | 2009-11-06 | 2013-08-27 | Corning Gilbert Inc. | Integrally conductive locking coaxial connector |
US8398436B2 (en) | 2009-11-16 | 2013-03-19 | Cooper Technologies Company | Stackable cable mount power connector |
EP2385585A1 (en) * | 2010-04-16 | 2011-11-09 | Astrium Limited | Connector |
US8579658B2 (en) * | 2010-08-20 | 2013-11-12 | Timothy L. Youtsey | Coaxial cable connectors with washers for preventing separation of mated connectors |
US8365404B2 (en) * | 2010-11-22 | 2013-02-05 | Andrew Llc | Method for ultrasonic welding a coaxial cable to a coaxial connector |
US20130072057A1 (en) * | 2011-09-15 | 2013-03-21 | Donald Andrew Burris | Coaxial cable connector with integral radio frequency interference and grounding shield |
-
2014
- 2014-01-10 DE DE202014000299.1U patent/DE202014000299U1/en not_active Expired - Lifetime
- 2014-10-29 CN CN201480072468.XA patent/CN105900291B/en active Active
- 2014-10-29 JP JP2016545347A patent/JP6351733B2/en active Active
- 2014-10-29 CA CA2933385A patent/CA2933385A1/en not_active Abandoned
- 2014-10-29 US US15/108,828 patent/US9843138B2/en active Active
- 2014-10-29 EP EP14792394.0A patent/EP3092688B1/en active Active
- 2014-10-29 KR KR1020167017269A patent/KR20160107164A/en not_active Application Discontinuation
- 2014-10-29 WO PCT/EP2014/002908 patent/WO2015104033A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
KR20160107164A (en) | 2016-09-13 |
CA2933385A1 (en) | 2015-07-16 |
DE202014000299U1 (en) | 2014-03-14 |
US20160322755A1 (en) | 2016-11-03 |
JP2017502480A (en) | 2017-01-19 |
CN105900291A (en) | 2016-08-24 |
CN105900291B (en) | 2018-11-23 |
WO2015104033A1 (en) | 2015-07-16 |
JP6351733B2 (en) | 2018-07-18 |
US9843138B2 (en) | 2017-12-12 |
EP3092688A1 (en) | 2016-11-16 |
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