EP3298660A1 - Contact sleeve for plugging devices - Google Patents
Contact sleeve for plugging devicesInfo
- Publication number
- EP3298660A1 EP3298660A1 EP16724854.1A EP16724854A EP3298660A1 EP 3298660 A1 EP3298660 A1 EP 3298660A1 EP 16724854 A EP16724854 A EP 16724854A EP 3298660 A1 EP3298660 A1 EP 3298660A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- cavity
- plug
- fingers
- sleeve
- 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.)
- Granted
Links
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 contact sleeve for receiving a plug pin in a plug-in device and a method for producing such
- Contact sleeves are used, for example, in sockets or sockets of electrical plug devices for power current according to DIN VDE 0623, EN 60309 2
- CEE plug-in devices or according to IEC 62196 ("E-car charging devices”). They typically have an im
- Substantially circular cylindrical cavity for receiving a correspondingly shaped plug pin.
- Contact should be the highest possible contact force between the inside of the contact sleeve and the connector pin. 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.
- the invention is embodied in a method for producing a contact sleeve.
- the contact sleeve in this case has a cavity extending in the direction of a plug-in shaft for receiving an associated plug pin in an electrical plug-in device, and it contains at least two contact fingers, which are arranged parallel to one another around the cavity, wherein the contact fingers during insertion of the
- Plug pin move apart under extension of the cavity elastic.
- the method is characterized by the steps (which in the indicated or another suitable order or simultaneously
- the invention relates to a contact sleeve having a cavity for receiving an associated plug pin in an electrical plug-in device.
- the cavity should thereby extend in the direction of a predetermined axis, which is referred to below as "plug-in axis", since the plug pin moves during insertion along this axis.
- the "associated" connector pin should be a predetermined connector pin to which the dimensions of the cavity are matched.
- the pin is circular cylindrical with a given Cylinder diameter between 1 mm and 15 mm.
- the contact sleeve contains the following components:
- At least two webs, tongues or fingers which are referred to below as “contact fingers” and which are arranged parallel to each other around the cavity and thereby define or define the cavity, wherein the contact fingers during insertion of the
- Plug pin under extension of the cavity can move apart elastically.
- all contact fingers are similar
- Inner side of at least one contact finger is formed.
- such a depression is located in each of the existing ones
- a plurality of depressions are arranged on different contact fingers such that they merge into one another and thus result in a total recess extending over two or more contact fingers.
- the contact sleeve described ensures a comfortable insertion while mechanically secure receiving a pin and a reliable electrical contact, since the pin under the
- 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
- the recess with the contact surface on the inside of the contact finger has an edge angle of less than 100 ° (measured in the material of the contact finger), preferably 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 during the insertion of a plug pin or to the plug pin to less than a predetermined distance, e.g. less than about 0.2 mm to about 0.3 mm, approaching.
- the explained feature means that the recess is at least locally sharp-edged.
- the edge angle of the recess can
- 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, of course, be located in a region of the cavity which is located in the cavity
- the plugged state of the plug-in device receives the plug pin ("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.
- Contact surface which in the mated state of the plug device touches a plug pin or this comes closer to less than a minimum distance, and surface in the region of the recesses, where no contact between the material of the contact fingers and a pin.
- Well between about 20% and about 80%, preferably between about 30% and about 70% of the total area of the inside (i.e., the balance is formed by contact area).
- the shape of the recess can be arbitrary.
- the shape of the recess can be arbitrary.
- the invention relates according to a second, independent aspect, a further contact sleeve with a extending in the direction of a thru-axle
- a cavity for receiving an associated plug pin in an electrical plug-in device which contains at least two contact fingers, which are arranged parallel to each other around the cavity, wherein the contact fingers when inserting the plug pin move apart under extension of the cavity elastically.
- the contact sleeve according to the second aspect is characterized in that at least one contact finger seen in a section perpendicular to the plug axis contacts an associated connector pin at (at least) two points, which are separated by a gap between the connector pin and contact fingers.
- 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.
- condition usually refers to an associated one
- Plug pin with a circular cylindrical shape may optionally be formed in one of the manners described above (ie in particular have a depression in the inner side of the cavity facing at least one contact finger).
- 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).
- Total number of contact points or contact lines 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 recesses and elevations may be applied (e.g., by milling or embossing).
- the contact points could e.g. lie on raised ribs which are formed on the inner surface of the contact finger.
- 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 invention relates according to a third, independent aspect, a further contact sleeve with a extending in the direction of a thru-axle
- a cavity for receiving an associated plug pin in an electrical plug-in device which contains at least two contact fingers, which are arranged parallel to each other around the cavity, wherein the contact fingers when inserting the plug pin move apart under extension of the cavity elastically.
- the contact sleeve according to the third aspect is characterized in that the cavity tapers towards the distal end, wherein the contact fingers and a contact body carrying the contact body of the contact sleeve are made of a raw material without bends.
- the contact sleeve according to the third aspect may optionally be formed in one of the manners described above (ie in particular have a depression in the inner side of at least one contact finger facing the cavity and / or have a contact finger which is perpendicular to the first in a section Thru axis seen an associated pin contacted at two points, which are separated by a gap between the pin and contact fingers).
- the rejuvenation of the cavity can in particular be such that the
- Cavity is substantially conical (or truncated cone-shaped) with 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, so by a suitable shape of the inside of the
- radius changes may also be present on the outside of the contact fingers. It is particularly preferred if the contact fingers at their proximal end (i.e., in the vicinity of the
- Carrier body are formed thicker than at the opposite distal end.
- the invention further relates to a method for producing a contact sleeve with a extending in the direction of a thru-axle cavity for
- the method comprises the following steps: Drilling and / or milling of a along a plug axis extending and tapering towards the distal end cavity in one
- 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.
- Figure 1 is a perspective view of a contact sleeve according to a first
- Figure 2 is a longitudinal section through the contact sleeve of Figure 1;
- Figure 3 is a view of the front of the contact sleeve of Figure 1;
- Figure 4 is a perspective view of a contact sleeve according to a
- Figure 5 is a longitudinal section through the contact sleeve of Figure 4.
- Figure 6 is a view of the front of the contact sleeve of Figure 4.
- Figure 7 is a view of the back of the contact sleeve of Figure 4;
- Figure 8 is a detail view of a recess of the contact sleeve of Figure 4;
- FIGS. 1 to 3 show a first embodiment of a contact sleeve 100 according to the invention.
- 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 shaped 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 so that the cavity HR tapers towards the distal end of the contact sleeve (i.e., towards the insertion opening, in FIG.
- 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.
- Plug pin must therefore move the contact fingers 101 to the outside and expand the cavity HR accordingly. This movement takes place under an elastic counterforce, which in turn provides the necessary contact pressure between the contact sleeve and pin.
- the cavity HR extends beyond the plug-in region 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 corresponding to the inside of the
- Contact finger 101 is tapered.
- the contact fingers 101 are based on a carrier body 107, in which on the opposite side of the contact fingers a terminal 1 10 for
- this line can be fixed by a transverse screw 1 1 1.
- the production of the contact sleeve 100 is preferably made of a raw material without bending processes. Initially, a first, circular-cylindrical bore with a small radius (RF, see FIG. 9) is introduced axially into a bar-shaped blank (made of "grown material"), this radius typically corresponding to the radius of the bottom region 106 or even a few 1 due to production / 10 mm may deviate from this. Starting from the free space thus created, a conical shape is then incorporated into the plug-in area 105 of the cavity HR by milling. Optionally, a further
- Plug-in area 105 and bottom portion 106) creates slots 103, 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. Another advantage of the described manufacturing method is
- 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. a cone-shaped (or more precisely cone-truncated form) inside with a radius R F.
- this is the smallest radius that occurs in the plug-in area 105. Due to the manufacturing process, this radius R F is smaller than that
- Nominal radius Rs of the associated pin S (for example, is
- contact at two points (or lines) per contact finger 101 has a further advantage when the contact surface of the contact fingers with a metal such as
- nickel (Ni) and / or silver (Ag) is coated (typically the contact finger is brass provided with a layer of Ni and Ag above). If it is due to friction over time
- Figures 4 to 8 show a second 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 Figures 1 to 3, wherein
- 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:
- Recesses 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 depression 202, that its edge to the contact surface KF on the inside of the contact finger 201 forms an edge angle of typically approximately 90 °.
- the depth t of the grooves may be, for example, between about 0.2 and about 1 mm (note: Zur
- Plug pin comes into contact or the plug pin comes closer than a predetermined distance of, for example, less than 50% of the groove depth t).
- Bottom area 206 has an outer constriction, so that the contact fingers 201 get a desired thickness and thus a desired spring behavior.
- the contact fingers could optionally also be enclosed on the outside in the distal region (105, 205) by an elastic spring ring (not shown) which increases the radially inwardly directed pressure to an inserted plug pin.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015108088.5A DE102015108088A1 (en) | 2015-05-21 | 2015-05-21 | Contact sleeve for plug devices |
PCT/EP2016/059785 WO2016184673A1 (en) | 2015-05-21 | 2016-05-02 | Contact sleeve for plugging devices |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3298660A1 true EP3298660A1 (en) | 2018-03-28 |
EP3298660B1 EP3298660B1 (en) | 2019-08-14 |
Family
ID=56080380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16724854.1A Active EP3298660B1 (en) | 2015-05-21 | 2016-05-02 | Plugging device comprising a plug pin and a contact sleeve |
Country Status (5)
Country | Link |
---|---|
US (1) | US10312619B2 (en) |
EP (1) | EP3298660B1 (en) |
CN (1) | CN107636914B (en) |
DE (1) | DE102015108088A1 (en) |
WO (1) | WO2016184673A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107394445B (en) * | 2017-08-29 | 2023-08-08 | 实盈电子(东莞)有限公司 | Conductive connecting piece for charging gun |
DE102018111733A1 (en) * | 2018-05-16 | 2019-11-21 | Harting Electric Gmbh & Co. Kg | PCB connector |
DE102018117815A1 (en) | 2018-07-24 | 2020-01-30 | Amad - Mennekes Holding Gmbh & Co. Kg | Monitoring of the contact area in a connector |
FR3087955B1 (en) * | 2018-10-26 | 2023-04-28 | Aptiv Tech Ltd | CONNECTION ASSEMBLY, FEMALE CONTACT AND CONNECTION METHOD |
CN113875095B (en) * | 2019-05-22 | 2024-05-28 | 住友电装株式会社 | Connecting terminal and connector |
CN114762195B (en) * | 2019-12-02 | 2024-04-26 | 史陶比尔电子连接器股份公司 | Socket main body |
CN111092320A (en) * | 2019-12-02 | 2020-05-01 | 中航光电科技股份有限公司 | Connector and jack contact element thereof |
DE102020104168B4 (en) | 2020-02-18 | 2022-01-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | connector device |
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-
2015
- 2015-05-21 DE DE102015108088.5A patent/DE102015108088A1/en not_active Ceased
-
2016
- 2016-05-02 US US15/569,341 patent/US10312619B2/en active Active
- 2016-05-02 WO PCT/EP2016/059785 patent/WO2016184673A1/en active Application Filing
- 2016-05-02 EP EP16724854.1A patent/EP3298660B1/en active Active
- 2016-05-02 CN CN201680029484.XA patent/CN107636914B/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102015108088A1 (en) | 2016-11-24 |
CN107636914B (en) | 2020-05-19 |
WO2016184673A1 (en) | 2016-11-24 |
US20180316111A1 (en) | 2018-11-01 |
US10312619B2 (en) | 2019-06-04 |
CN107636914A (en) | 2018-01-26 |
EP3298660B1 (en) | 2019-08-14 |
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