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
  • 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
• • 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
  • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
  • H01R13/5205—Sealing means between cable and housing, e.g. grommet
• • 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
  • H01R4/28—Clamped connections, spring connections
  • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
  • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
  • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R2107/00—Four or more poles

Definitions

• the invention relates to a connector that can be connected to a connection end with freely movable wires of a cable and can be coupled with a mating connector according to the preamble of claim 1.
• the connector follows the standards ICE 309-1, ICE 309-2 and EN 60 309 1 + 2 and is built for power current.
• Such connectors are known from German utility models 297 07 710.4 and 297 07 711.2. These are used to provide connectors in which a standard-compliant assembly is essentially guaranteed without the use of screws.
• the strain relief device is designed so that it contains a toggle nut and thus has screw surfaces.
• the invention has for its object to provide a totally screwless connector, in which the strain relief is arranged in the housing of the connector. The stated object is achieved on the basis of the features of claim 1 and claim 6 and is designed and further developed by the further features of the dependent claims.
• the connector which can be designed as a plug or coupling (socket), has a first, essentially tubular housing part made of insulating plastic, which comprises an inner, essentially cylindrical contact carrier.
• these wires can be pulled through a second, essentially tubular housing part made of insulating plastic, which can be connected to the first housing part.
• This has a holding plate which is provided for fastening to the first housing part in order to hold contact elements in a contact carrier of the first housing part.
• the free wire ends are inserted into the contact elements, which have screwless clamping devices for the ends of the wires and clamp them, and then the first and second housing parts are connected to one another by plugging and rotating in the manner of a bayonet lock, the strain relief device becoming effective and the cable on its jacket stuck.
• the holding plate or a part connected to it has a ring of inclined surfaces on cams which extend at a short distance from and along the inside of the second housing part.
• the strain relief device comprises a cage-like clamping chuck, which has a actuation with bevels attached to cams, which cooperate with the rim of the bevels of the holding plate when the first and second housing parts are plugged together and rotated against one another.
• the clamping chuck comprises clamping arms which are arranged distributed around the connection end of the cable and have an arcuate curvature towards and away from the connection end, in each case forming a radially inner apex on which teeth or claws are attached which bite into the cable sheath can.
• the clamping arms have free ends which are supported on the support surfaces of the second housing part when the first and second housing parts are plugged together and locked.
• the cage-like chuck is thus compressed between the two parts of the housing, whereby the Move the radially inner apex of the clamping arms radially inwards until the cable ends this movement after the teeth or claws of the clamping arms have gripped.
• the free ends of the clamping arms can be more or less radially outward on the
• Contact elements with which the ends of the wires are to be connected, each have a bow spring with a support leg and a clamping plate.
• the contact elements are formed with a contact plate on which the support leg of the respective bow spring rests.
• the clamping plate surrounds the contact plate with a window opening which has an actuating edge (on the contact plate) and a free edge (on the bow spring).
• the bow spring acts as a tension spring on the clamping plate and pulls the actuating edge against the contact plate.
• Each clip spring is assigned a locking slide which can be brought into a position for compressing the clip spring and into a position for releasing the clip spring. When the bow spring is compressed, the window opening of the bow spring and the associated free one opens
• the end of the wire can be inserted into the window opening.
• the bow spring pulls the operating edge of the window opening against the inserted wire end and presses it against the contact plate of the respective contact element.
• the new screwless connector has the advantage that it can be installed without tools. By the principle Clamping both the wire ends and the cable automatically adjusts to the respective cross-section. This makes it possible to use one and the same connector for different sized flexible lines or cables.
• FIG. 1 shows a longitudinal section through a coupling
• FIG. 2 shows a contact element with a bow spring as a clamp
• FIG. 3 shows an enlarged detail of FIG. 1, but with a thinner cable
• FIG. 4 shows a clamping chuck
• FIG. 5 shows a view of on the bottom of the chuck.
• the coupling has a two-part enclosure, consisting of a first tubular housing part 1, the collar, and a second tubular housing part 2, the hood.
• the first housing part 1 represents a housing front part and has a connecting end 1 a and a plug end 1 b to the dome with a complementary plug-in unit.
• the second housing part 2 represents a protective part and a cable clamping part and has a connecting end 2a and a cable insertion end 2b for inserting a flexible cable or a cable 40.
• a pivotable cover 3 is attached to the first housing part 1, which covers the plug end 1b and protects against splashing water when the coupling or socket is disengaged from a plug.
• the first housing part 1 comprises a cylindrical contact carrier 4 which is integral with the outer tubular Housing part 1 is formed and is formed with individual receiving chambers 6 for receiving contact elements 5 (here contact sockets).
• the number of receiving chambers and the contact sockets depends on the intended purpose and can have three receiving chambers (two phase contacts and one protective conductor contact), four receiving chambers (three phase contacts and one protective conductor contact) or five receiving chambers (three phase contacts, one zero conductor contact and one protective conductor contact) .
• the number of receiving chambers and the contact sockets depends on the intended purpose and can have three receiving chambers (two phase contacts and one protective conductor contact), four receiving chambers (three phase contacts and one protective conductor contact) or five receiving chambers (three phase contacts, one zero conductor contact and one protective conductor contact) .
• the number of receiving chambers and the contact sockets depends on the intended purpose and can have three receiving chambers (two phase contacts and one protective conductor contact), four receiving chambers (three phase contacts and one protective conductor contact) or five receiving chambers (three
• Contact carrier 4 may be designed to receive a pilot contact.
• the contact socket for the protective conductor contact can protrude a little further to the rear, so that this protective conductor connection is definitely maintained until the end, even if the cable is pulled in such a way that the conductor ends are pulled out of the terminal point (Fig. 2).
• the contact carrier 4 is designed to receive contact pins.
• the term contact element 5 is used both for contact sockets and contact pins.
• the contact elements 5 To connect an exposed wire 41 of the cable 40, the contact elements 5 have a contact plate 7 (FIG. 2), which is integrally connected to the body of the contact element 5 together with a support leg 18.
• a loop-shaped bow spring 8 has two intersecting legs 9 and 10, the leg 10 having a window opening 11 through which the leg 9 extends.
• the window includes an operating edge 12 and a free edge 13.
• the contact plate 7 can be pushed through the window opening and clamped by releasing the fastening edge 12 and the Bow spring is carried by the contact element 5.
• the contact plates 7 and the bow springs 8 each extend into individual chambers 14 of a holding plate 15, which is made of insulating material and can be latched or otherwise connected to the contact carrier 4.
• the holding plate 15 is provided with first access openings 16, through each of which a locking slide 36 extends as a contact opener. Second access openings 17 open to the contact elements in the area of the windows 11.
• the locking slide 36 has a recess 37 in which the bell-shaped connecting part 8a of the bow spring 8 is seated when the plug connector is fully assembled.
• the locking slide 36 has the function of a depressing tool that can assume two positions, namely a release position, as shown, and one
• Depressed position in which the inclined surface of the recess 37 presses down the bent part of the connecting leg 8a and opens the window 11 so that the free wire end 41 can be pushed into the window 11.
• the two mentioned positions of the locking slide 36 are determined by stops 38 and 39 which abut the respective shoulders of the holding plate 15.
• an actuating opening 36a is provided, at which one can push the locking slide back and forth, for example by means of a screwdriver.
• a screwless locking system 20 which can be actuated by inserting and rotating one into the other and for this purpose has four pairs of bolts 21 which engage in the manner of a bayonet and press the housing parts 1 and 2 firmly against one another, so that these parts are sealed watertight against each other.
• strain relief device 50 which will be described below.
• the strain relief device 50 comprises a cage-like clamping chuck 51 which is clamped between inclined surfaces 52 and curved support surfaces 53.
• the inclined surfaces 52 are formed by a ring of, for example, four cams, which is attached to the holding plate 15 and which extends at a short distance from and along the inside of the second housing part 2.
• the support surfaces 53 are formed all around and represent a vault in cross section.
• the cage-like clamping chuck 51 has an actuating ring 54 on which cams are provided to form inclined surfaces, which cooperate with the inclined surfaces 52.
• the actuation ring 54 is against
• the cage-like chuck 51 has four clamping arms 56, which are arranged at an angular distance of 90 ° from one another around the cable 40 and which are bent overall in an S-shape.
• a radially inner apex 57 is formed, on which teeth or claws 58 are seated.
• the arms 56 have free ends 59 which are supported on the curved surface 53.
• a protective sleeve 60 which consists of a flexible material and has sealing lips 61, which bear against the cable 40, is injection molded onto the second housing part 2 Keep moisture and dust away from the inside of the device.
• the protective sleeve also serves to protect the cable from kinking.
• the assembly of the cable on the connector is carried out as follows: First, a piece of the jacket 42 of the cable 40 is removed in order to obtain individual insulated wires 43. The front end of these freely movable insulated wires 43 is stripped in order to obtain bare wire ends 41, over which wire end sleeves may also be pushed. The thus prepared connection end of the cable is through the opening formed on the lips 61 into the interior of the
• the housing part 2 is locked with the housing part 1, which is done by axially plugging and rotating.
• the inclined surfaces of the actuating ring 54 and the inclined surfaces 52 on the holding plate 15 come into effect, i.e. the chuck 51 is urged in the axial direction relative to the housing parts 1 and 2 in the drawing upwards.
• the free end 59 which rests on the support surface 53, however, does not allow a pure displacement of the
• the teeth 58 attempt to penetrate further into the cable sheath 42, so that the clamping of the cable 40 is increased. If the cable is pushed towards the interior of the housing, the movement is resisted by bending the clamping arms 56, i.e. the cable is also held in the direction of insertion.
• the device can be opened by rotating the housing parts 1 and 2 against their mounting direction and thereby unlocking them.
• the strain relief 50 is relaxed and by pulling back the housing part 1 you can get easy access to the interior of the housing.

Landscapes

• Details Of Connecting Devices For Male And Female Coupling (AREA)
• Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
• Coupling Device And Connection With Printed Circuit (AREA)
• Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
• Infusion, Injection, And Reservoir Apparatuses (AREA)
• Mechanical Coupling Of Light Guides (AREA)
• Dowels (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7864434

Family Applications (1)

Country Status (10)

Cited By (1)

Families Citing this family (12)

Family Cites Families (5)

• 1999
  • 1999-04-13 AU AU41349/99A patent/AU4134999A/en not_active Abandoned
  • 1999-04-13 DK DK99924811T patent/DK1072067T3/da active
  • 1999-04-13 BR BR9909694-3A patent/BR9909694A/pt not_active IP Right Cessation
  • 1999-04-13 CN CN99805055A patent/CN1116717C/zh not_active Expired - Fee Related
  • 1999-04-13 TR TR2001/02068T patent/TR200102068T2/xx unknown
  • 1999-04-13 AT AT99924811T patent/ATE230168T1/de active
  • 1999-04-13 EP EP99924811A patent/EP1072067B1/fr not_active Expired - Lifetime
  • 1999-04-13 WO PCT/EP1999/002481 patent/WO1999053572A1/fr active IP Right Grant
  • 1999-04-13 TR TR2000/02990T patent/TR200002990T2/xx unknown
  • 1999-04-13 ES ES99924811T patent/ES2185347T3/es not_active Expired - Lifetime
• 2000
  • 2000-10-11 ZA ZA200005587A patent/ZA200005587B/en unknown

Non-Patent Citations (1)

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