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
  • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
  • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
  • H01R4/2425—Flat plates, e.g. multi-layered flat plates
  • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
  • H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
• • 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
  • H01R13/582—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 the cable being clamped between assembled parts of the housing
• • 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]
  • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
  • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded 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
  • H01R2107/00—Four or more poles
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
  • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
  • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices

Definitions

• the invention relates to an electrical plug for data transmission in an industrial environment.
• the plug has a connection region for making the contact for a conductor, a plug head for introduction into a plug receiver and a shielding means.
• US 5,667,402 discloses an electrical plug receiver which is connected by way of a circuit card to insulation displacement contacts which accept cables by way of pivotal covers. This makes it possible to connect a modular jack or similar connector to a cable. This also makes it possible for modular jack plug connectors to be used in industrial applications.
• the object of the present invention is to provide an electrical plug which is suitable for data transmission in industrial-type environments and which can be mated to a corresponding modular jack provided for industrial use.
• the electrical plug as described herein is used for data transmission in an industrial environment such as serial field bus networks in industrial use with PC-based LAN systems, for example in an Ethernet environment.
• the electrical plug acts as an adapter by corresponding on the plug head side to the standardised LAN connection and by being able to make contact on the connection side for four-core conductors suitable for field bus applications.
• the connection principle of the plug head can be in the form of an RJ45 plug, or another type of plug
• Figure 1 is an exploded perspective view of a first embodiment of an electrical plug according to the invention
• Figure la is a perspective view, depicting two contacts and a connection part of the plug according to the invention.
• Figure 2 is a perspective view of the electrical plug of Figure 1 in the open position
• Figure 3 is an enlarged perspective view of respective insulation displacement contacts of the electrical plug of Figure 1;
• Figure 4 is a perspective view of the electrical plug of Figure 1 with a latching spring attached;
• Figure 5 is a perspective view of the electrical plug in the first assembly step
• Figure 6 is a perspective view of the electrical plug in the second assembly step
• Figure 7 is a perspective view of the electrical plug according in the third assembly step
• Figure 8 is a perspective view of the electrical plug in the last assembly step
• Figure 9 is a partial perspective view of the electrical plug with the clamping piece not yet fixed
• Figure 10 is a partial perspective view of the electrical plug with the clamping piece partially assembled
• Figure 11 is a partial perspective view of the electrical plug with the clamping piece fully assembled
• Figure 12 is a diagrammatic illustration of the electrical plug on the cable side, with the clamping piece in the first position
• Figure 13 is a diagrammatic illustration of the electrical plug on the cable side, with the clamping piece in the second position
• Figure 14 is a diagrammatic illustration of the electrical plug on the cable side, with the clamping piece in the third position;
• Figure 15 is a diagrammatic illustration of the electrical plug on the cable side, with the clamping piece in the final position;
• Figure 16 is an exploded perspective view of a second embodiment of an electrical plug according to the invention.
• Figure 17 is a perspective view of the electrical plug of Figure 16, in the completely open position with conductor ends inserted;
• Figure 18 is a perspective view of the electrical plug of Figure 16, with the pivotal cover closed and the cable introduced;
• Figure 19 is a perspective view of the electrical plug of Figure 16, in the closed but not yet locked condition.
• Figure 20 is a perspective view of the electrical plug of Figure 16, in the completely closed and locked position.
• FIG. 1 A first example embodiment of the invention will now be described with reference to Figures 1 to 15.
• the structure of the electrical plug will first be described with reference to Figures 1 to 4.
• the assembly of the electrical plug to a shielded cable having four conductors will be described with reference to Figures 5 to 8.
• the securing of the clamping piece will then be described with reference to Figures 9 to 11.
• the rotation of the clamping piece will then be described with reference to Figures 12 to 15.
• Figure 1 shows an exploded illustration of the electrical plug according to the first embodiment.
• the following parts can be seen: a clamping piece 1 which is part of a strain relief device; a lower shield housing 2; a metal latching spring 3 which serves to latch the electrical plug in a plug receiver; a connection part 4 which serves to conductively connect the first and second contacts; first electrical contacts 5, which are constructed as insulation displacement contacts; second electrical contacts 6; an insert housing 7; a pivotal cover 8; and an upper shield housing 9.
• the shielding means thus comprises a lower shield housing 2 and an upper shield housing 9.
• the upper shield housing 9 is mounted on the lower shield housing 2 in such a way that it can be pivoted open.
• the housings can be secured together such that they cannot become inadvertently detached.
• the lower shield housing 2 serves to receive the individual components of the electrical plug. For this purpose, it has a trough-shaped receiver 20. Moreover, it has at the cable end a substantially semi-cylindrical recess to act as the cable receiver 21.
• a semi-cylindrical recess of this kind acting as a cable receiver 21 is also provided on the upper shield housing 9.
• These semi-cylindrical recesses have transverse ribs 22 for making the contact with the shielding means of the conductor or cable.
• clamping mandrels 23 are provided in this semi-cylindrical recess 21, these being part of the strain relief device and engaging the outer sheath of the cable when the clamping piece 1 is applied appropriately. Also provided on the lower shield housing 2 is a holding device 24 for mounting the clamping piece 1.
• the lower shield housing has on each of its opposing outer sides recesses 25 for securing the metal latching spring 3.
• connection part 4 is constructed as a rigid circuit card. It has metallized bores into which the first and second electrical contacts 5, 6 can be introduced by means of appropriate pin regions. It is also possible to construct the connection part 4 as a flexible foil board or punched grid. The electrical contacts 5, 6 can be connected to the connection part 4 by means of reflow soldering, SMD soldering, flow soldering or other insert technique.
• connection part 4 instead of a separate connection part 4 it is also possible for the latter to be constructed as a stamped and formed part 40 in which the contacts 5 and 6 are integrally attached. A part of this type is particularly simple to manufacture, and the assembly step for assembling the electrical contacts to the connection part is eliminated.
• the first electrical contacts 4 in Figure 1 are constructed as insulation displacement contacts which are folded over. It is therefore possible to terminate a plurality of conductors to one insulation displacement contact.
• connection part 4 It is also possible to provide on the connection part 4 an arrangement for compensating for interference, for example in the form of capacitors or in the configuration of the conductor traces on the connection part 4.
• the insert housing 7 is inserted from above over the first and second electrical contacts 5, 6 onto the connection part 4.
• the insert housing also co-operates with the receiver 20 of the lower shield housing 2. Together with the second electrical contacts 6, the insert housing 7 forms the plug head 10, which can be introduced into a complementary receiver, for example a modular jack.
• a recess 71 ( Figure 4) which serves to secure the tab 31 on the latching spring 3.
• the latching spring 3 is thus secured to the electrical plug by means of the lateral tabs 32 and the front tab 31.
• the latching spring has two latching hooks 33 and an actuating handle 34 by means of which the latching hooks are actuable and the plug is detachable from a complementary receiver.
• the insert housing 7 can for example have an extension 72 having a bore which co-operates with a post 26 in the lower shield housing 2.
• the post 26 can be hot-caulked in order to secure the insert housing 7 in the lower shield housing 2.
• the insert housing 7 can be latched to the shield housing 2.
• the pivotal cover 8 can for example be made from a transparent material in order to allow the termination of the insulation displacement contact to be monitored. It is also possible to construct, from the transparent material, viewing windows 81 ( Figure 2) with a magnifying effect.
• the pivotal cover 8 has individual receivers 82 for receiving conductor ends.
• the individual receivers 82 have introduction funnels 83. It is possible to provide labelling 84 on the pivotal cover 8.
• the pivotal cover 8 By pivoting the pivotal cover 8, the conductors introduced into the individual receivers 82 are brought into contact with the insulation displacement contacts 5.
• the pivotal cover 8 is secured pivotally to the insert housing 7, having a stop in both the open and the closed position. Latching arms 85 which co-operate with corresponding latching openings 73 in the insert housing 7 are provided to latchingly maintain the pivot cover in the closed position.
• the clamping piece 1 serves to close the upper and lower shield housings 2, 9.
• the clamping piece 1 has a through bore 101 which allows it to be turned by means of a screwdriver.
• clamping piece 1 With reference to Figures 9 to 11, the way the clamping piece 1 is secured to the lower shield housing 2 will now be described.
• the clamping piece 1 is latched onto the lower shield housing 2 at a defined angle of rotation. Then the clamping piece is turned such that the opening slot 102 of the clamping piece extends coaxially with respect to the axis of the receiving opening 21 of the shield housing 2. The clamping piece 1 is then secured to the lower shield housing 2 such that it cannot be inadvertently detached.
• the clamping piece serves not only to secure the two shield housings 2, 9 to one another, but also ensures strain relief.
• the clamping piece 1 has a peripheral collar 103 with latching and guide elements. When the clamping piece is turned, this collar cooperates with a journal 91, which bears the cable receiver 21, on the upper shield housing 9. When the clamping piece 1 is turned, pressure is exerted on this journal 91 and the two receivers 21 are pressed against one another by means of the holding mandrels 23 and thus against the cable. In Figures 12 to 15, no cable is illustrated, for the sake of better clarity. In Figure 15, the secured position of the clamping piece 1 is illustrated. With reference to Figures 16 to 20, a example embodiment of the invention will now be described.
• connection part 4 ⁇ is constructed as a flexible circuit card.
• the lower shield housing 4 ⁇ is not constructed in one piece as in the first embodiment, but rather a lower shield plate 2 ⁇ is provided and an insert housing 7 reaches around the lower shield plate 2 ⁇ in the manner of a hoop.
• insulation displacement contacts 5 are provided and are held in a mounting 51.
• a pivotal cover 8 ⁇ applies the conductors 13 ⁇ of the cable 11 ⁇ to the insulation displacement contacts 5 ⁇ .
• the upper shield housing 9 ⁇ , the lower shield plate 2 and the insert housing 7 ⁇ are held together by a locking piece 1 . This locking piece can be slid on axially and, by means of shoulders 104 engages in corresponding grooves 92 in the upper shield housing 9 ⁇ .
• a separate housing head 12 ⁇ is provided, in which the second electrical contacts 6 are pre-assembled.

Landscapes

• Details Of Connecting Devices For Male And Female Coupling (AREA)

Priority Applications (1)

Applications Claiming Priority (4)

Publications (2)

Family

ID=8169556

Family Applications (1)

Country Status (4)

Cited By (4)

Families Citing this family (15)

Family Cites Families (6)

• 2001
  • 2001-08-14 DE DE60124727T patent/DE60124727T2/de not_active Expired - Lifetime
  • 2001-08-14 WO PCT/IB2001/001444 patent/WO2002015340A1/en active IP Right Grant
  • 2001-08-14 EP EP01954277A patent/EP1310019B1/de not_active Expired - Lifetime
  • 2001-08-14 AU AU2001276618A patent/AU2001276618A1/en not_active Abandoned

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events