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
  • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
• • 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
  • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
  • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
  • H01R13/5808—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part formed by a metallic element crimped around the cable
• • 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
  • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
  • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
  • H01R13/5812—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part the cable clamping being achieved by mounting the separate part on the housing of the coupling device
• • 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
  • H01R13/6582—Shield structure with resilient means for engaging mating connector
  • H01R13/6583—Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members

Definitions

• the invention relates to a strain relief for a connector in communication and data technology.
• From DE 198 11 476 C1 discloses a cable clamp for contacting the shielding of cables when fixing to a contact plate is known, from a web and two outer legs connected to these, which are provided with cut tabs as holding elements for fixing the cable clamp to the contact plate, wherein for contacting the shield of the cable, the web is formed as a circular arc to the outside and provided with edge, inwardly directed web strips for pressing into the shield of the cable, wherein the arc of the web with respect to the cross section of the cable clamp arranged symmetrically on the outer circumference of the cable to be connected is adapted and extends in cross section only over a partial length of the web.
• strain reliefs A disadvantage of the known strain reliefs that the wires of the cable are not precisely defined aligned to the contacts of a connector to be connected to the cable. Especially at very high transmission frequencies, this causes very large tolerances in the crosstalk between adjacent wire or contact pairs.
• the strain relief consists of a substantially U-shaped base part for receiving at least a part of the connector and a cable to be connected to the connector, wherein the base part is formed with the first locking means, and a closure means, wherein the closure means is formed with second locking means which form a Rastverbindu ⁇ g with the first locking means of the base part.
• the base part is formed on the underside of the legs with inwardly directed, parallel guides which are perpendicular to a rear wall of the base part.
• the base part In the upper region, on the inside of the legs, the base part is formed with a respective obliquely extending leading edge.
• the obliquely extending guide edges are designed to be complementary to the leading edge of a cable manager.
• the base On the upper side of the base four openings are arranged on both sides, which are formed as slots.
• the two jaw parts are formed with pyramid-like structures.
• a locking spring In the openings then acting as a locking spring can be used and a rigid closure element are snapped.
• the substantially U-shaped closure element is for this purpose formed on the inner sides with obliquely rearward current locking recesses, which engage on the legs of the spring.
• a disadvantage of the known strain relief is the mechanically relatively complex structure due to the movable jaw parts, which makes a production of plastic necessary.
• the invention is therefore based on the technical problem of providing a strain relief for a connector in communications and data technology, the at a simpler mechanical design allows a defined adhesion and a defined alignment of cable and connector.
• the strain relief comprises a base part for receiving at least a portion of the connector and a cable to be connected to the connector, wherein the base part is formed with first locking means, and a closure means, wherein the closure means is formed with second locking means, with the first locking means of the base part forming a latching connection, wherein the closure means is designed as a spring, comprising two legs which are pushed along a guide on the base part, wherein the base part is formed with at least one support point for the spring and the spring is designed such that one of the cable generated counterforce move the arranged on the legs second locking means to the first locking means of the base part.
• the base part does not necessarily have to be made of plastic, but for example, can also be produced in die cast, which in addition to increased strength also has considerable cost advantages.
• the spring is formed substantially w-shaped.
• the spring is formed centrally with a concave recess, so that the spring can nestle against the cable circumference.
• the latching means of the spring are preferably designed as latching hooks, which are preferably formed by a free cut from the legs of the spring. In a preferred embodiment, bends are disposed at the free ends of the legs of the spring to release the spring from the base part, if necessary.
• the base part is formed with a movable head part on which the first locking means are arranged.
• the head part as a separate component captive on the base part latched.
• the design as a separate component simplifies the production, since no moving parts must be made, on the other hand can be handled by the captive attachment in the application base part and headboard as a single component.
• the component is formed with an upwardly sloping ramp, wherein the base part behind the slope has a recess.
• the head part then has a latching nose, which can be pushed over the slope and then captive slips into the depression.
• the head part is formed on the top and bottom completely symmetrical.
• the strain relief can be used at the same time for contacting a shield of the cable.
• the base part preferably has a structuring on the inside in order to increase the contact quality.
• This structuring can be pyramid-shaped, for example.
• FIG. 1 is an exploded perspective view of a strain relief for a connector
• FIG. 2 is a perspective exploded view of Buchentlaszung with a socket body and a cable to be connected and
• the strain relief 1 comprises a base part 10, a closure means 30 and a head part 40.
• the base part 10 comprises two side walls 11, a rear wall 12 and a top 13. At the bottom of the side walls 11 leading edges 14 are arranged, which are perpendicular to the rear wall 12. At the top of the side walls 11 and the underside of the upper part 13 extend obliquely rearwardly running guide edges 15.
• the upper part 13 has in the front region a rounded cutout for receiving a cable, not shown.
• On the rear wall 12 side facing the upper part 13 has an inwardly and upwardly extending slope 16, behind which a recess 17 is located. In the front, lateral region of the upper part 13, two guide elements 18 are arranged.
• Each guide element 18 forms on the one hand on the inside a guide 19 and on the outside of a guide 20.
• the side wall 11 is pulled slightly above the upper part 13 in the front region and forms a first support point 21.
• the guide element 18th in the front region of the guide 20 a downwardly directed angled portion 22, which forms a second support point.
• the side walls 11 also have indentations 23.
• the closure means 30 is formed as a substantially W-shaped spring with two legs 31. At the free ends of the legs 31 outwardly directed bends 32 are arranged. The legs 31 are each with an inward directed latch hook 33 is formed. In the central region, the W-shaped spring is formed with a concave bulge 34. In the region of the concave bulge 34 four beads 35 are inserted into the spring.
• the head part 40 is substantially U-shaped.
• the free legs are formed in the front region on the outside as a smooth leading edge 41 and on the inside as an outwardly extending slope 42.
• In the front region of the leg is stepped and formed reset, so that a further guide surface 43 is formed.
• the legs are formed on the outside with ribs 44.
• In the middle on the top and bottom of the head part 40 is in each case a latching nose 45, which extends obliquely upward to the rear.
• a latching nose 45 which extends obliquely upward to the rear.
• central region of the head part 40 pyramidal structures 46 are arranged.
• the transition from the leading edge 41 to the outside with the ribs 44 forms a stop surface 48.
• the stop surface 48 is preferably beveled, wherein the rear wall of the guide element 18 is chamfered correspondingly complementary.
• the head part 40 is preferably formed completely symmetrically on the top and bottom
• the socket housing 50 has on its upper side a cable manager 52 with bevels 53, which are formed complementary to the guide edges 15 of the base part 10.
• the function of the cable manager 52 is the defined guidance and positioning of the wires of the cable 51.
• the wires are guided from the top of the cable manager 52 through an opening and clamped defined on the non-visible underside of the cable manager 52.
• the cable manager 52 is placed on the socket housing 50, in which case the wires positioned on the underside lie over associated insulation displacement contacts, but are not yet pressed into them. This situation is shown in FIG.
• the insulation displacement contacts are arranged in the interior of the socket housing and thus not visible in Fig.2.
• the head part 40 is first on the Base part 10 postponed.
• latching lug which is not visible in the illustration, but identical to the visible on the top locking lug 45, along the slope 16 along and then slips into the recess 17.
• the rear wall of the Recess 17 a stop for the head part 40, so that they are captive connected to each other.
• the movement of the head part 40 is limited by the guide member 18, since the head part 40 can be moved with the guide edges 41 only along the guide 19. If the guide edges 41 are fully inserted, then the stop surface 48 strikes against the rear side 24 of the guide element 18.
• the stroke of the movement is preferably limited to half of the cable diameter variation, which will be explained later in more detail.
• the base part 10 with the head part 40 connected is pushed onto the socket housing 50 along the guide edges 14 and 15. Due to the slope of the leading edge 15 while the cable manager 52 is pressed down in the direction of the other socket housing 50. This forces the wires positioned in the cable manager 52 into the insulation displacement contacts.
• the leading edge 15 acts like a transmission that converts a sliding movement into a lifting movement. As a result, the necessary contacting force can be distributed more uniformly, so that the contacting of the wires can be done by the base member 10 without further tools.
• the closure means 30 can be snapped.
• the legs 31 are moved along the guide 20 until the latching hooks 33 engage in a rib 44 of the head part 40.
• rib 44 engage the latching hooks 33 depends on the diameter of the cable 51 from.
• the legs 31 of the resilient latched closure means 30 are supported on the support point 21 and the bend 22.
• a counterforce of the cable 51 causes a compression of the inner spring portions, so that an outwardly acting on the outer legs 31 spring force is generated. Due to the fixation of the outer thighs 31 through the support point 21 and the bend 22, this spring force leads to a movement of the free ends of the legs 31 in the direction of the base part 10.
• the latching hooks 33 are pressed deeper into the ribs 44 and counteract the counterforce.
• an almost unlimited strain relief of the cable 51 is achieved.
• the wires and the contacts must be arranged exactly defined to each other. It is also important that the cable be aligned with the cable manager 52 in a defined manner. If now the base part 10 are rigidly connected to the head part 40, the closure means 30 would have to be pushed far differently at different cable diameters and compensate for the different diameters alone. However, this would cause the cable 51 to be bent to different degrees, which is undesirable because of the stringent crosstalk requirements. This is where the mobility of the head part 40 begins. In this case, a different cable diameter is equalized in equal parts of the head part 40 and the closure means 30, so that the cable 51 is independent of its diameter is always perpendicular to the cable manager 52.
• base member 10 with head portion 40 and the closure means 30 are pushed simultaneously and uniformly on the socket body 50.
• strain relief 1 a centered attachment of cables 52 of different diameters can be realized.
• half of the additional cable diameter is compensated by the movement of the head part 40 and the other half by the closure means 30, the locking hooks 33 engage in one of the front ribs 44.
• the strain relief 1 can also be used as a shield contact.
• the base part 10 and the head part 40 are preferably formed as zinc-pressure castings, which are thus electrically connected to each other.
• the shield 55 is bent over the insulation of the cable 51 during the assembly of the cable manager 52 upwards.
• Fig. 3 the completely assembled strain relief is shown.
• the cable 51 is clamped in the region of the bent-up shield 55 from the concave portion 34 of the W-shaped spring and the structures of the head portion 40, wherein the latching hooks 33 are engaged in the ribs 44 of the head portion 40.
• the guide surface 43 of the head part 40 bears against the upper edge of the guide element 18.
• the free legs 31 of the W-shaped spring are supported by the support point 21 and the bend 22 at the front part of the base part 10.

Landscapes

• Details Of Connecting Devices For Male And Female Coupling (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
• Dc Digital Transmission (AREA)
• Coupling Device And Connection With Printed Circuit (AREA)
• Stereo-Broadcasting Methods (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (2)

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ID=7699517

Family Applications (1)

Country Status (18)

Families Citing this family (39)

Family Cites Families (14)

• 2001
  • 2001-09-19 DE DE10146119A patent/DE10146119C1/de not_active Expired - Fee Related
• 2002
  • 2002-08-12 CA CA002458519A patent/CA2458519C/fr not_active Expired - Fee Related
  • 2002-08-12 DE DE50214365T patent/DE50214365D1/de not_active Expired - Lifetime
  • 2002-08-12 KR KR1020047003950A patent/KR100869678B1/ko not_active IP Right Cessation
  • 2002-08-12 ES ES02772141T patent/ES2342157T3/es not_active Expired - Lifetime
  • 2002-08-12 DK DK02772141.4T patent/DK1428300T3/da active
  • 2002-08-12 WO PCT/EP2002/009023 patent/WO2003026076A1/fr not_active Application Discontinuation
  • 2002-08-12 US US10/490,156 patent/US7114987B2/en not_active Expired - Lifetime
  • 2002-08-12 EP EP02772141A patent/EP1428300B1/fr not_active Expired - Lifetime
  • 2002-08-12 CN CNB028182782A patent/CN1279659C/zh not_active Expired - Fee Related
  • 2002-08-12 MX MXPA04002325A patent/MXPA04002325A/es active IP Right Grant
  • 2002-08-12 AT AT02772141T patent/ATE464680T1/de active
  • 2002-08-12 PT PT02772141T patent/PT1428300E/pt unknown
  • 2002-08-12 BR BR0212581-1A patent/BR0212581A/pt not_active IP Right Cessation
  • 2002-08-13 MY MYPI20022994A patent/MY128782A/en unknown
  • 2002-08-20 TW TW091118798A patent/TW571461B/zh not_active IP Right Cessation
  • 2002-09-25 SA SA02230334A patent/SA02230334B1/ar unknown
• 2005
  • 2005-04-01 HK HK05102762A patent/HK1070186A1/xx not_active IP Right Cessation
• 2006
  • 2006-09-29 US US11/540,431 patent/US7267572B2/en not_active Expired - Fee Related
• 2007
  • 2007-07-13 US US11/827,809 patent/US7371106B2/en not_active Expired - Fee Related
• 2010
  • 2010-07-14 CY CY20101100661T patent/CY1110197T1/el unknown

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