EP1280237A2 - Connecteur pour carte imprimée - Google Patents

Connecteur pour carte imprimée Download PDF

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Publication number
EP1280237A2
EP1280237A2 EP02012271A EP02012271A EP1280237A2 EP 1280237 A2 EP1280237 A2 EP 1280237A2 EP 02012271 A EP02012271 A EP 02012271A EP 02012271 A EP02012271 A EP 02012271A EP 1280237 A2 EP1280237 A2 EP 1280237A2
Authority
EP
European Patent Office
Prior art keywords
receptacle
connector according
connector
circuit board
cable end
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.)
Withdrawn
Application number
EP02012271A
Other languages
German (de)
English (en)
Other versions
EP1280237A3 (fr
Inventor
Werner Kallee
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.)
Wuerth Elektronik GmbH and Co KG
Original Assignee
Wuerth Elektronik 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 Wuerth Elektronik GmbH and Co KG filed Critical Wuerth Elektronik GmbH and Co KG
Publication of EP1280237A2 publication Critical patent/EP1280237A2/fr
Publication of EP1280237A3 publication Critical patent/EP1280237A3/fr
Withdrawn legal-status Critical Current

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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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2406—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation having needles or pins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/515—Terminal blocks providing connections to wires or cables
    • 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

Definitions

  • the invention relates to a connector with which a cable is to be attached to another object, in particular a printed circuit board.
  • the cable should primarily be a high-current connection.
  • the invention is based on the object of providing a simply constructed and easy-to-use connector with which a high-current connection can be attached, in particular on a printed circuit board.
  • the invention proposes a connector with the features mentioned in claim 1. Developments of the invention are the subject of dependent claims.
  • the connector contains a body made of metal, ie a conductive material. This body contains a receptacle for the end of the cable to be connected.
  • the body can then be connected to the circuit board, for example.
  • this type of connection is provided on a device where there is already a component corresponding to the body, that is to say a metallic component in which such a receptacle can be attached.
  • the receptacle in which the cable end is fixed is a blind hole.
  • the use of a blind hole has the advantage that the cable can be inserted to a precisely defined point that a user can feel. This can ensure that the cable is always inserted with the correct depth of penetration, which is of course important for establishing the mechanical and electrical contact.
  • the receptacle is essentially cylindrical. The entire circumferential surface of the cable can then rest against the metallic body.
  • the receptacle has a stepped diameter, the section which is further on the outside of the body having a larger diameter. In this way it can be ensured that part of the insulation of the cable is also inserted into the receptacle, on the one hand to provide safe insulation outside of the body and on the other hand to be able to fix the insulation.
  • the invention therefore proposes one of several options for designing the fixing device in such a way that it reduces the cross section of the receptacle. By reducing the cross section of the receptacle, the strands of the cable are acted on so that they abut one another and on the outside of the receptacle with force.
  • a particularly favorable possibility of reducing the cross section can be that the cross section is at least partially divided.
  • the fixing device can also be designed in such a way that it also reduces the cross section in the area of the receptacle with the larger diameter, that is, it is also effective there.
  • An example of a fixing device can consist in that it has at least one pin which penetrates the receptacle and which, in particular, consists of a metallic conductive material. If this pin is inserted after the cable has been inserted, it divides the cross-section of the receptacle into two parts, so that the strands of the cable are pushed outward to the right and left of the pin and are therefore particularly firmly attached to one another. Since high forces can occur here, it can be provided according to the invention in a further development that the pin is held on both sides of the receptacle, for example in bores that run transversely to the receptacle.
  • the body in which the receptacle is arranged can be connected directly to the printed circuit board. This can be done not only by screws, but also, for example, in that it has a large number of contact pins that can be pressed into plated-through holes in the printed circuit board.
  • the body can be connected, in particular releasably, to a counter element that can be connected or connected to the printed circuit board.
  • the counter element can also have, for example, a large number of contact pins which can be pressed into plated-through holes.
  • the counter element can be a base, for example, or a socket.
  • the body can have a plug section which can be inserted into a socket of the base and which can be connected or connected to the printed circuit board.
  • This plug section can be cylindrical, with a smooth surface.
  • the counter element can have a clamping bush in which the plug section is fixed by spring action.
  • the spring can consist of a metallic conductive material in order to secure and ensure not only a mechanical but also an electrical connection.
  • a coupling element can be provided, which is either attached to the body with the receptacle or to the counter element connected to the printed circuit board.
  • the coupling element can in particular be a coupling nut which serves to secure the connection in the inserted state.
  • the body pulled off the circuit board can be provided with a blind plug or the like.
  • This blind plug is intended to be in contact with one to prevent electrically conductive part.
  • a connector is shown with which a cable end can be firmly connected.
  • the connector can then be connected via a base or directly be connected to a circuit board.
  • the connector contains a body 1, which is, for example, cuboid.
  • a cylindrical section 4 is formed, preferably in one piece, via a recess 3. This cylindrical section 4 can serve as a plug section.
  • a receptacle 6 for a cable end is formed in the body 1.
  • the receptacle has the shape of a blind hole, that is to say a recess extending from the side 5, which is closed off by a base 7.
  • an area 8 with a first diameter is initially formed, this area 8 being cylindrical, preferably with a circular cross section.
  • Concentric to this first section 8 is a second cylindrical section 9, the diameter of which is somewhat smaller than that of the first area 8. This forms an annular shoulder 10 between the two areas 8, 9.
  • Three cylindrical bores 11 run transversely to the axis of the receptacle 6, of which two bores 11 cross the region 9 with the smaller diameter and a bore 11 cross the region 8 with the larger diameter.
  • the axis of the bores 11 runs diametrically to the axis of the blind bore forming the receptacle 6.
  • the blind bore which forms the receptacle 6, is arranged centrally in the body 1.
  • the cylindrical bore 11, which passes through the receptacle 6, continues on the opposite side of the receptacle and also forms a blind hole there.
  • FIG. 3 shows the side view of a base element 12 which is connected to a circuit board and remains connected.
  • the base element 12 has a socket part 13 with an external thread 14.
  • the external thread 14 does not reach all the way to the upper end of the socket part 13 in FIG. 3.
  • On the The socket part 12 opposite the socket part 13 is cuboid and contains there a fastening section 15, on the underside 16 of which is assigned to the printed circuit board, a plurality of contact pins 17 are arranged.
  • These contact pins 17, which are not dealt with in detail, are intended to be pressed into plated-through holes in a printed circuit board.
  • There are a large number of such contact pins 17 in order to be able to establish both a good mechanical and a good electrical connection to the printed circuit board.
  • This just mentioned bottom 16 of the fastening section 15 can be seen in FIG. 4, where only a few contact pins 17 are shown for reasons of simplification.
  • FIG. 5 shows a coupling element 18 which is intended to connect the connector of FIGS. 1 and 2 to the base part 12 of FIGS. 3 and 4.
  • the union element 18 has the shape of a sleeve 19 with an end cover 20 which contains a central hole 21.
  • an annular shoulder 22 is formed on the inside of the sleeve 19 around the hole 21 and is oriented in the axial direction.
  • the sleeve 19 contains an internal thread 23 which does not extend all the way to the end face 24 of the coupling element 18 facing away from the cover 20.
  • the internal thread 23 corresponds to the external thread 14 of the base part of FIG. 3.
  • the diameter of the hole 21 corresponds to the diameter of the recess 3.
  • the coupling element 18 consists of a plastic.
  • the connector can therefore be pushed over the plug section 4 of the connector of FIGS. 1 and 2 with a certain amount of deformation until it snaps into the recess 3. Then the annular shoulder 22 rests on the end face of the plug section 4 facing the body 1. If the coupling element 18 is connected to the plug element, the connector can be inserted with its plug section 4 into the sleeve element 13 of the base part, the coupling element 18 serving to facilitate or enable this during the last section of the insertion. The connection is then secured by tightening the coupling element 18.
  • the connection between the connector of FIGS. 1 and 2 and the counter element of FIGS. 3 and 4 connected to the printed circuit board can be released, as can be seen from the description of the union element 18. If for some reason, for example for maintenance purposes, the connector of FIGS. 1 and 2 already connected to the cable is detached from the base, a situation can arise in which the plug section 4 is live.
  • the plug section 4 is a solid metal part, that is to say a cylindrical section made of solid material.
  • the invention provides a blind plug 25, which is shown in FIG.
  • the blind plug 25 simply has the shape of a cylindrical sleeve 26 with a base end 27.
  • the inner opening 28 of the blind plug 25 corresponds to the outer diameter of the section 4, as does the length.
  • the sleeve section 26 On its outside, the sleeve section 26 is provided with an external thread 29, which is identical to the external thread 14 of the base part 12, see FIG 30 reaches the internal thread 23 of the coupling element 18. Then it can be connected to the connector 1 by rotating the union element 18 or the blind plug 25. Thus, the connector of Figure 1 and two is secured against accidental contact with other conductive parts.
  • the end of the cable is stripped in such a way that the stripped part of the cable corresponds to the depth of the section 9 of the receptacle 6 measured in the axial direction, that is to say the axial distance between the bottom 7 of the blind hole and the annular shoulder 10.
  • the cable end is inserted into the receptacle, a cable of course being used, the diameter of which is approximately adapted to the receptacle 6 is. The insertion continues until the end of the cable strikes the bottom 7 of the blind hole. Then, for the reasons just described, the end of the insulation 31 rests on the annular shoulder 10. This state is shown in Figure 7.
  • the strands or individual cables 32 of the cable 33 rest on the floor 7.
  • the front end of the insulation 31 lies on the annular shoulder 10.
  • pins 35 are inserted into the cylindrical bores 11, which pass through the receptacle 6, from the upper side 34 of the body facing away from the plug 4 and then hammered in, for example with a hammer. This can be done gradually, for example from the pin on the right most in FIG. 7 or also from the opposite pin 35. Instead of driving in, this can also be done with the aid of a press, for example a lever press.
  • the leftmost pin 35 in FIG. 7 penetrates the insulation 31 of the cable and the individual cables 32, while the two remaining pins 35 only penetrate the individual cables 32. Since the end faces of the pins 35 are not pointed, but at most rounded, they divide the individual cables 32 into two halves and push these two halves apart. The result can be seen in FIG. 8.
  • the pins 35 reduce the cross section of the receptacle at three points, so that there the individual cables 32 are pressed tightly against one another and against the wall of the receptacle. It can lead to deformation and extension of the individual cables 32, which, however, have space to deform into the spaces between the pins 35.
  • Figure 9 shows a schematic cross section through the counter element of Figures 3 and 4. It has the shape of a sleeve provided with a bottom 15 on, into which a cage 36 is inserted from above and pressed with the element.
  • the cage 36 has individual resilient tongues 37 which are pre-deformed somewhat inwards into the inner space of the plug.
  • the tongues 37 are separated from one another by slots 38. When the plug section 4 is inserted, the tongues 37 are pushed outward, ie their spring force rests on the outside of the plug section 4 after the plug section 4 has been inserted.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP02012271A 2001-07-23 2002-06-05 Connecteur pour carte imprimée Withdrawn EP1280237A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10136990A DE10136990A1 (de) 2001-07-23 2001-07-23 Verbinder für Leiterplatten
DE10136990 2001-07-23

Publications (2)

Publication Number Publication Date
EP1280237A2 true EP1280237A2 (fr) 2003-01-29
EP1280237A3 EP1280237A3 (fr) 2003-12-03

Family

ID=7693523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012271A Withdrawn EP1280237A3 (fr) 2001-07-23 2002-06-05 Connecteur pour carte imprimée

Country Status (2)

Country Link
EP (1) EP1280237A3 (fr)
DE (1) DE10136990A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210735B (en) * 1987-09-17 1991-12-04 Bicc Plc Electrical connectors
DE29600371U1 (de) * 1996-01-10 1996-06-13 Siemens AG, 80333 München Hochstrom-Kabelklemme für eine Leiterplattenanordnung
US6146181A (en) * 1998-11-16 2000-11-14 Plaza; Aaron M. Interlocking electrical connector assembly having a guiding member and removal recess

Also Published As

Publication number Publication date
EP1280237A3 (fr) 2003-12-03
DE10136990A1 (de) 2003-02-06

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