EP3298660B1 - Dispositif enfichable comprenant un connecteur mâle et un connecteur femelle - Google Patents

Dispositif enfichable comprenant un connecteur mâle et un connecteur femelle Download PDF

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Publication number
EP3298660B1
EP3298660B1 EP16724854.1A EP16724854A EP3298660B1 EP 3298660 B1 EP3298660 B1 EP 3298660B1 EP 16724854 A EP16724854 A EP 16724854A EP 3298660 B1 EP3298660 B1 EP 3298660B1
Authority
EP
European Patent Office
Prior art keywords
contact
cavity
plug pin
plugging device
plug
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
EP16724854.1A
Other languages
German (de)
English (en)
Other versions
EP3298660A1 (fr
Inventor
Markus Lubeley
Peter Epe
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.)
Amad Mennekes Holding GmbH and Co KG
Original Assignee
Amad Mennekes Holding GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amad Mennekes Holding GmbH and Co KG filed Critical Amad Mennekes Holding GmbH and Co KG
Publication of EP3298660A1 publication Critical patent/EP3298660A1/fr
Application granted granted Critical
Publication of EP3298660B1 publication Critical patent/EP3298660B1/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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • 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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the invention relates to a plug-in device, comprising a plug pin and a contact sleeve for receiving the plug pin.
  • Contact sleeves are used for example in sockets or sockets of electrical plug devices for power flow according to DIN VDE 0623, EN 60309 2 ("CEE plug-in devices”) or according to IEC 62196 ("E-car charging connectors"). They typically have a substantially circular cylindrical cavity for receiving a correspondingly shaped plug pin. For a good and permanent electrical contact should be the highest possible contact force between the inside of the contact sleeve and the pin exist. On the other hand, this force must not be too large, so that a comfortable insertion and separation of the plug-in device by a user remains possible.
  • contact sleeves can be produced, which are described in more detail below.
  • the contact sleeve described ensures a comfortable insertion while mechanically secure receiving a pin and a reliable electrical contact, since the pin is received under the elastic contact pressure of the contact fingers in the cavity of the contact sleeve.
  • the at least one depression on an inner side of the contact fingers supports these properties in that there is no contact between the plug pin and the contact sleeve in the region of the depression.
  • the freestanding contact fingers preferably produce the desired contact pressure solely on account of their elastic properties.
  • the compressive force exerted by the contact fingers on a connector pin can also be achieved, reduced, or assisted by other means.
  • a higher contact pressure can be generated by the contact fingers are surrounded on the outside by an elastic spring ring.
  • the advantages of the invention are already achieved by providing a single recess in a single contact finger. An optimization of the advantages, however, usually occurs when seen in the direction of the thru axle two or more wells are arranged one behind the other, wherein between the wells contact surfaces for contacting a plugged into the cavity plug pin lie. If, in the following, "the depression” will be discussed, it should always be understood that the corresponding properties should be given for at least one of several depressions, preferably for all existing depressions.
  • the recess with the contact surface on the inside of the contact finger forms an edge angle of less than 100 ° (measured in the material of the contact finger), preferably of less than about 91 °.
  • the "contact surface” is intended to be that surface on the inside of the contact finger, which comes into contact with the plug pin when a plug pin is inserted.
  • the explained feature means that the recess is at least locally sharp-edged.
  • the edge angle of the recess may also be significantly sharper than the mentioned degrees, with angles of less than 90 °, as a rule, are difficult to produce.
  • edges which forms the depression with the contact surface, can all be of the same kind (that is, for example, all sharp-edged) or differently formed.
  • the edges passed first when inserting a plug pin may be "soft" and the edges subsequently passed through may be sharp-edged; In this way, the removal of the connector pin runs as low friction.
  • the described (sharp) edge of the recess runs at least in sections transversely to the plug-in axis.
  • the depression must, so that it can develop its desired effect, of course, lie in a region of the cavity, which receives the plug pin in the assembled state of the plug-in device ("plug-in area"). It is particularly preferred if the depression in the distal Half of the cavity is located, by definition, the "distal" end of the cavity is located at the end of the cavity at which the opening for insertion of a connector pin lies.
  • the depression can lie in particular in the last approximately last 30% of the axial extent of the cavity. In other words, the recess is preferably in the entrance region of the cavity, which ensures that as far as possible the entire length of the plug pin must pass through the depression.
  • the inside of the contact fingers is divided into “contact surface", which contacts a plug pin in the assembled state of the plug-in device, and surface in the region of the depressions, where no contact between the material of the contact fingers and a plug pin takes place.
  • these areas of the recess (s) occupy between about 20% and about 80%, preferably between about 30% and about 70% of the total area of the inside (ie the rest is formed by contact area) ,
  • the shape of the recess can be arbitrary.
  • at least two recesses are provided on different contact fingers, which together form a circumferential groove around the plug-in axis.
  • At least one contact finger seen in a section perpendicular to the plug-in axis, contacts the associated plug pin at (at least) two points, which are separated by a gap between plug pin and contact finger.
  • a “gap” should be present if the distance between the plug pin and the contact finger is so great that no electrical current flow takes place (in the case of (network) voltages of usually less than 1000 V occurring in practice). Typically, the gap width is greater than about 0.01 mm. Furthermore, the condition usually refers to an associated pin with a circular cylindrical shape.
  • the touch of a pin can be done at exactly two points (in a plane perpendicular to the plug axis cutting plane) or along exactly two axially extending lines (composed of the above points).
  • the total number of contact points or contact lines is then equal to twice the number of contact fingers. If there are more than two contact points per contact finger, the total number increases accordingly.
  • the contact fingers may be freestanding or optionally coupled with additives such as an outer circumferential elastic spring ring.
  • the described contacting at two points can be achieved in various ways.
  • three-dimensional structures with depressions and elevations can be applied to the inner surface of the contact finger (eg by milling or embossing).
  • the contact points could be on raised ribs formed on the inner surface of the contact finger.
  • the contact surface on the inside of at least one contact finger can be truncated cone-shaped or circular-cylindrical, wherein the radius R F at at least one axial position (preferably at all axial positions in the distal region of the plug-in axis) is smaller than the (nominal) radius R S the associated connector pin.
  • the inside of at least one contact finger is coated at least on the contact surfaces, for example with a layer of nickel and / or silver.
  • the core material of the contact fingers or the contact sleeve is typically made of a highly electrically conductive and inexpensive material such as brass. Said coating provides on the contact surfaces for improved mechanical and / or electrical properties. In practice, however, it has been found that a coating is removed after prolonged use. In the above-described contact between the contact finger and pin at two points in this regard, an advantageous Vorrats realise of coating material is achieved: namely, if coating material is removed in the contact points, move the contact points along the gap between them towards each other and remain constantly with not varnish Coating in contact.
  • the cavity tapers towards the distal end, wherein the contact fingers and a contact body carrying the contact fingers of the contact sleeve are made of a raw material without bends.
  • the taper of the cavity can in particular be such that the cavity is substantially conical (or truncated cone-shaped) with a cone radius increasing from the plug opening to the bottom of the cavity.
  • the contact fingers may be free-standing or optionally coupled with additives (e.g., spring washer).
  • At least one of the contact fingers along its axial extent a variable thickness (measured perpendicular to the plug axis).
  • all contact fingers have the same thickness variations.
  • the thickness of the contact fingers can be done by changing the radius or the clear width of the cavity, ie by a suitable shape of the inside of the contact fingers. Additionally or alternatively, radius changes may also be present on the outside of the contact fingers. It is particularly preferred if the contact fingers are made thicker at their proximal end (that is, in the vicinity of the carrier body) than at the opposite distal end.
  • the first step of the method begins with the production of a (circular cylindrical) bore, wherein the radius of this bore is slightly smaller than the radius of the connector pin associated with the contact sleeve (see above). Furthermore, the depth of the bore may optionally be greater than the length required to receive a pin.
  • a next sub-step can then be widened by milling the radius of the bore at its proximal end, that results in the desired tapered shape of the cavity, in particular a cone shape.
  • a contact sleeve can be made with in the grown material inwardly inclined contact fingers.
  • FIGS. 1 to 3 an embodiment of a contact sleeve 100 is shown.
  • the contact sleeve 100 is used in a non-illustrated coupling or socket of an electrical plug-in device to make electrical contact with an associated (usually circular cylindrical) pin connector.
  • the contact sleeve I made of an electrically conductive material, such as a metal such as copper or brass, and has a along a plug axis A extending cavity HR, in which the plug pin can be inserted.
  • the cavity HR is formed by two or more (in the example shown by four) contact fingers 101, which extend parallel to each other and are arranged on a circle around the insertion axis A.
  • the contact fingers 101 are formed so that they surround a plug-in area 105 in the form of a cone or truncated cone, in which comes to rest in the assembled state of the plug-in device of the plug pin.
  • the cone is oriented in such a way that the cavity HR tapers towards the distal end of the contact sleeve (ie towards the insertion opening, in FIG FIG. 2 right).
  • the angle of inclination of the cone is typically between about 0.5 ° and about 3 ° relative to the stub axle A.
  • the narrowest radius of the cavity HR in the region of the plug-in opening (which preferably has a funnel-shaped extension to the outside, which should facilitate the insertion of a plug pin) is preferably about 10% smaller than the nominal radius of the associated plug pin.
  • the cavity HR extends beyond the plug-in area 105 even deeper into the contact sleeve.
  • This lower-lying bottom portion 106 is no longer reached by the pin and only serves to give the contact fingers 101 the desired elastic properties.
  • the contact fingers 101 have a variable thickness along their axial extent. In the bottom area 106, they are thicker than in the plug-in area 105, wherein the wall thickness in the plug-in area 105 is uniform, since the outer contour runs conically in accordance with the inside of the contact fingers 101.
  • the contact fingers 101 are based on a carrier body 107, in which a connection 110 for inserting an electrical connection line (not shown) is located on the side opposite the contact fingers, wherein this line can be fixed by a transverse screw 111.
  • the production of the contact sleeve 100 is preferably made of a raw material without bending processes.
  • a first, circular-cylindrical bore with a small radius R F , see FIG. FIG. 9 ), wherein this radius typically corresponds to the radius of the bottom region 106 or else may deviate from it by a mere 1/10 mm due to production.
  • R F circular-cylindrical bore with a small radius
  • a conical shape is then incorporated into the plug-in area 105 of the cavity HR by milling.
  • a corresponding outer cone can be turned on.
  • slits 103 are created by radially extending cuts (along the plug-in area 105 and bottom area 106), which free the desired number of contact fingers 101.
  • the described method Compared to a manufacturing process in which contact fingers are first released and then bent into a circular cylindrical bore in order to achieve a cone shape, the described method has the advantage of achieving a better elastic behavior by eliminating bends.
  • the contact finger 101 has (in the distal plug-in area 105, the cut runs at the narrowest distal point, ie along the line IX-IX of FIG. 2 ) a cone-shaped (or more precisely truncated cone-shaped) inside with a radius R F.
  • R F the radius that occurs in the plug-in area 105.
  • contact at two points (or lines) per contact finger 101 has a further advantage when the contact surface of the contact fingers is coated (typically) with a metal such as nickel (Ni) and / or silver (Ag) the contact finger made of brass, which is provided with a layer of Ni and above Ag). If, due to friction at the contact points P1 and P2, a material abrasion occurs over time, the contact points migrate towards each other while the gap SP is consumed. This ensures that the contact between the contact finger and the plug pin is constantly made via "fresh" coating material, which is virtually stored in the area of the gap.
  • FIGS. 4 to 8 show an embodiment of a contact sleeve 200 according to the invention.
  • the contact sleeve 200 is formed substantially the same as the first contact sleeve 100 of the FIGS. 1 to 3 , wherein corresponding components are provided with reference numerals increased by 100 and need not be re-explained.
  • the contact sleeve 200 has For example, again a cone-shaped cavity HR and is preferably made without bending.
  • a significant innovation in the second contact sleeve 200 are depressions 202, which are mounted in the distal start region of the cavity HR on the inside of the contact fingers 201.
  • the recesses 202 are formed in particular in the form of four annular circumferential grooves, these grooves are recessed as sharp as possible in the inside of the contact fingers 201.
  • FIG. 8 shows in this regard in the enlarged view of a recess 202, that the edge of the contact surface KF on the inside of the contact finger 201 forms an edge angle ⁇ of typically about 90 °.
  • the depth t of the grooves may be between about 0.2 and about 1 mm (Note: By definition, the pad is to include any point that comes in contact with a pin).
  • the contact sleeve 200 in the bottom region 206 has an outer constriction, so that the contact fingers 201 get a desired thickness and thus a desired spring behavior.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (9)

  1. Dispositif enfichable comprenant un connecteur mâle (S) et un connecteur femelle (200) avec une cavité (HR) s'étendant dans la direction d'un axe à enfichage (A) pour recevoir le connecteur mâle associé (S), contenant:
    - au moins deux doigts de contact (201) disposés parallèlement l'un à l'autre autour de la cavité (HR), les doigts de contact s'écartant élastiquement l'un de l'autre lors de l'insertion du connecteur mâle, élargissant ainsi la cavité;
    - au moins une dépression (202) dans la face intérieure tournée vers la cavité (HR) d'au moins un doigt de contact (201),
    caractérisé en ce que la dépression (202) est située dans une surface de contact (KF) à la face intérieure et forme avec celle-ci un angle de bord (α) inférieur à environ 100°, la surface de contact (KF) étant cette surface à la face intérieure du doigt de contact (201) qui vient en contact avec le connecteur mâle lors de l'insertion du connecteur mâle (S).
  2. Dispositif enfichable selon la revendication 1,
    caractérisé en ce que la dépression (202) forme un angle de bord (α) inférieur à environ 91° avec la surface de contact (KF) à la face intérieure.
  3. Dispositif enfichable selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que la dépression (202) est disposée dans la moitié distale de la cavité (HR).
  4. Dispositif enfichable selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce qu'entre environ 20 % et environ 80 %, de préférence entre environ 30 % et environ 70 %, de la surface de l'intérieur du doigt de contact (201) sont occupés par la dépression (202) ou les dépressions (202).
  5. Dispositif enfichable selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce qu'il y a au moins deux dépressions (202) sur des doigts de contact (201) différents, qui forment ensemble une rainure périphérique autour de l'axe à enfichage (A).
  6. Dispositif enfichable selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce qu'au moins un doigt de contact (101, 201), vu dans une section perpendiculaire à l'axe à enfichage (A), vient en contact avec le connecteur mâle (S) associé en deux points (P1, P2) qui sont séparés par un espace (SP) entre le connecteur mâle (S) et le doigt de contact (101, 201).
  7. Dispositif enfichable selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que la surface de contact (KF) à la face intérieure d'au moins un doigt de contact (101, 201) est cylindrique circulaire ou tronconique avec un plus petit rayon (RF) qui est inférieur au rayon (RS) du connecteur mâle associé (S).
  8. Dispositif enfichable selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que la face intérieure des doigts de contact (101, 201) est revêtue au moins sur les surfaces de contact (KF), de préférence de nickel et/ou d'argent.
  9. Dispositif enfichable selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que la cavité (HR) se rétrécit vers l'extrémité distale, selon lequel les doigts de contact (101, 201) et un corps de support (107, 207) du connecteur femelle portant les doigts de contact sont faits d'une matière première sans courbes.
EP16724854.1A 2015-05-21 2016-05-02 Dispositif enfichable comprenant un connecteur mâle et un connecteur femelle Active EP3298660B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015108088.5A DE102015108088A1 (de) 2015-05-21 2015-05-21 Kontakthülse für Steckvorrichtungen
PCT/EP2016/059785 WO2016184673A1 (fr) 2015-05-21 2016-05-02 Connecteur femelle pour dispositifs enfichables

Publications (2)

Publication Number Publication Date
EP3298660A1 EP3298660A1 (fr) 2018-03-28
EP3298660B1 true EP3298660B1 (fr) 2019-08-14

Family

ID=56080380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16724854.1A Active EP3298660B1 (fr) 2015-05-21 2016-05-02 Dispositif enfichable comprenant un connecteur mâle et un connecteur femelle

Country Status (5)

Country Link
US (1) US10312619B2 (fr)
EP (1) EP3298660B1 (fr)
CN (1) CN107636914B (fr)
DE (1) DE102015108088A1 (fr)
WO (1) WO2016184673A1 (fr)

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DE102015108088A1 (de) 2016-11-24
CN107636914A (zh) 2018-01-26
US10312619B2 (en) 2019-06-04
US20180316111A1 (en) 2018-11-01
CN107636914B (zh) 2020-05-19
EP3298660A1 (fr) 2018-03-28
WO2016184673A1 (fr) 2016-11-24

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