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
  • H01R13/44—Means for preventing access to live contacts
• • 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
  • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
  • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
• • 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
  • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
  • H01R43/24—Assembling by moulding on contact members

Definitions

• the present invention relates to the term claimed above and thus deals with connector bridges, in particular with those having partially insulated metal contacts. ⁇ - 10
• the metal contacts which penetrate into a socket or socket that is to say plug pins, blade contacts or the like, must be arranged in a geometrically exact manner, that is to say, one another.
• the plastic plate with pins or. Knife contacts is referred to as a connector bridge.
• the connector bridge is a mass component that is inexpensive to manufacture and must permit easy further processing of the connector bridge. This applies regardless of the regulations in force in a given country 30 for power plugs.
• power plugs in which the metal contacts are partially isolated. In this case, bare metal is present only at the side facing away from the handle end of the body, while is provided in the vicinity of the handle body 'is a plastic coating for the metal contacts. This has the advantage that, for instance, children playing with a half-plugged plug can not get hold of live metal contacts with paper clips or other instruments, thereby suffering a fatal or life-threatening electric shock.
• the object of this invention is to provide news for the commercial application.
• connector bridges with partially insulated blade contacts ie non - rounds resp. flat cutting contacts are preferably produced by a multi-stage process by first a first insulation tion is provided and then only the arrangement in a
• Plastic plate takes place or. an encapsulation of the vorisolier- ⁇ th blade contacts with plastic to form the plastic or connector bridge base plate. It should be mentioned that it is particularly preferred not simply to insert the partially insulated blade contacts into a prefabricated base plate, but rather to overmold or replace the blade contacts provided with partial insulation in a retaining plate. to be used. Surprisingly, in spite of the labor required to partially isolate blade contact insulation, the total overhead for connector bridge fabrication does not increase, in any event not significantly; Rather, by the possibility of partial isolation, in particular in the area of the plastic plate to be formed or to be attached or. To structure the plug bridge base plate and to achieve an improved positioning capability in the production process by means of this structuring, a high cycle speed is achieved in the production.
• the formation of the partial insulation is provided separately from the arrangement of the partially insulated metal contacts in the plastic plate; in other words .
• a supply of partially isolated metal contacts is created and these partially isolated metal contacts are then aligned isolated before their processing and fed to the actual, plug bridge-forming machine.
• the metal contacts with crimp connections in their upper area, ie in use on the inside of the plug handle body.
• the crimp connections will typically protrude over the insulation, in particular when the metal contact insulation is formed in the region of the plastic plate with a molding, which allows easier and / or more precise positioning in the plastic plate; This also applies to any blade contacts or contact pins, such as grounding pins or earthing contact blades, which are not provided on the connector bridge and are not insulated in the socket area.
• the crimping terminations preferably via a tapered neck with "the contact blades be connected, wherein the tapered collar or typical of the plastic insulation. Protrudes stoffpiatten Colour in this transitioning cross-sectional widening in the art.
• the provision of a tapered neck above the actual Kunststoffplat- tenebene and thus above the insulated or plastic-encapsulated region of the metal contacts has the advantage that with the high dynamic forces acting during crimping, a breakage of the insulation and / or the plastic plate or chipping of material even at fast clock frequencies, ie high production speed, safely avoided.
• the crimp sleeves or crimp wings or other CrimpCount- elements on Köntaktmesser is preferably associated with an insertion or ⁇ feeding, which differs from the connection or.
• Stop area ' upwards to the insertion side of the power cord extended approximately funnel-shaped, thus facilitating a leading of the stranded wire and at the same time significantly reduces the risk of protruding strands, so that there is no danger that protruding strands protrude from the handle body and the user a lethal or ode -r can put a fatal electric shock.
• the A- Guide aid is preferably formed on the actual plastic plate and / or placed on this.
• the partial plastic insulation around the blade contacts preferably serves not only to increase the security when using the power plug, but can also be used at the same time to better position the blade contacts in the area of the plastic plate.
• a cross-sectional widening can be provided, wherein the corresponding cross-sectional widening in particular a thickness corresponding to the plastic plate or.
• a structuring such as grooves, corrugations, lugs, recesses are provided which prevent in particular a rotation of the partially i-soled or possibly also non-isolated (ground) blade contacts in the plastic plate , And / or an axial displacement away from the plastic plate, which would result in a change in the plug contact lengths and thus a possible deviation from the norm.
• the particularly preferred cross-sectional widening thus increases the reliability of the connector bridge.
• the metal contacts which are typically stamped from sheet metal and optionally obtained by bending stamped sheet metal parts, in particular in the area of the plastic insulation with through holes. This helps to create an intimate and secure connection between metal and insulating plastic, in which the metal contact is not movable against the insulation. At the same time the weight is reduced and the cost of materials is reduced.
• the free metal contact ends are formed in a preferred variant generally flush with the insulation. This prevents that when inserting or unplugging the plug into the socket, a contact spring or the like in the socket to hang on the insulation and this can destroy gradually or suddenly.
• Protection is also claimed for partially isolated metal contacts for carrying out the method according to the present invention as particularly relevant elements of the invention, without thereby giving up protection for other relevant elements.
• FIG. 1 shows a connector bridge of the present invention with two partially isolated blade contacts in different manufacturing steps.
• FIG. 2 shows a plug bridge according to the present invention with partially insulated blade contacts. and a non-insulated earthing contact in various stages of production;
• Fig. 3 an alternative connector bridge of the present
• Fig. 4 is a two-pin connector bridge of the present invention with a multi-piece plastic plate in various manufacturing steps;
• Fig. 5 is a three-pin plug bridge according to the present invention in different manufacturing steps;
• FIG. 6 shows a two-pole plug bridge according to the present invention in various production steps
• Fig. Fig. 7 shows a connector bridge according to the prior art.
• FIG. 1 comprises a blade connector 1 partially insulated with FIG. 1 (FIG. 1 at the bottom) and a plastic plate 3 fixing it, the blade contacts being provided (FIG. 1 at the top) and provided with the plastic insulation 2a before being inserted in the plastic plate 3 are arranged.
• Jumper 1 is a jumper for a two-pin ground pin connector for a connector, for example, to Australian standards. Overhangs of the plug pins D beyond the plastic plate, dimension of the blade contacts 2 in width B and thickness d, etc. are normed.
• the blade contacts are punched from suitable copper sheet or the like and have a taper in their central, partially insulative region 2al, as can be clearly seen in FIG. 1 above, in particular on the right blade contact.
• the blade contacts are provided in the region of their taper 2al with through holes 2a2 and 2a3, which are dimensioned so that the stability of the blade contacts is not, j if not significantly impaired, and a flow of hot, not yet solidified plastic material is readily possible.
• the plug pins are formed according to the standard tapered.
• a section 2c corresponding to the thickness k of the plastic plate is provided in the metal of the blade contacts, tapering towards a crimping sleeve end 2d via a shoulder 2e.
• the shoulder 2e is transferred via a shoulder 2el into the section 2c, i. H .
• the approach 2 e is generally thinner and therefore more flexible than section 2c.
• the bevel of the shoulder can be seen in particular on the right blade contact in Fig. 1 above, which has not been provided with reference numerals for reasons of clarity.
• a transition formed according to the chamfer 2el is also provided at both ends of the sections 2al, that is, the section 2c and the section 2b.
• the crimp end 2d is presently formed as a crimpable sleeve 2d, which identifies a diameter, in which easily the strands of a cable to be connected of sufficient strength can be inserted for the intended current flow.
• crimp sleeves crimping surfaces or other connection regions could also be provided, for example areas for rivet soldering or welding connections.
• FIG. 1 The blade contacts of FIG. 1 above are now provided in the pen area with a standard plastic insulation, which in Fig. 1 is shown in the middle. After that is around the section 2al the plastic insulation. 2a is provided, wherein plastic by "or the holes 2a2 2a3 or optionally further holes is yet penetrated;.. Further, according to the invention the plastic 2a is formed integrally with a 2cl conformation around the portion 2c around.
• the Anformung 2cl extends to over the shoulder 2el to approach 2e and is provided to the socket end of the blade contact out with a step 2f, a support of the neck 2cl on an injection mold, with which the plastic plate is formed in exactly defined position un - Permitted sealing against leakage of plastic injection molding compound and / or a support on an already finished plastic plate.
• the area between the lower shoulder 2f and the upper side 2g facing the crimping sleeve 2d is provided with a peripheral groove 2h which engages in a ready-made plastic plate or
• the connector bridge of the present invention is made as follows: First, the knife contacts are punched from sheet metal and thereby bent the Crimphülsen in shape. Optionally, it is possible to form the blade contacts not made of solid material, but as a hollow body by bending sheet during the punching process.
• the finished stamped or otherwise produced metal contacts are then encapsulated in a first step with plastic material, wherein the in Fig. 1 middle shown training results.
• the pre-produced, partially insulated metal contacts are then fed to an injection molding machine in which they are held in proper alignment and overmolded with plastic material to form the base plate 3.
• the plug bridge 1 is then ready and can be supplied to a power supply line production line, on which strands of a mains connection cable are struck against the crimping ends 2d and subsequently a handle body made of PVC or the like is poured around the plug bridge.
• plastic plates 3 provided recesses allow penetration of the PVC material in the base plate and possibly a penetration of the same, whereby the base plate is positioned relative to the handle body exactly in height - and remains nier.
• FIG. 2 it is also possible to provide three-pole or multi-pole plug bridges according to the invention. If individual Mes.seruttone need not be partially isolated, because it is about grounding contacts, as indicated at 4, can still be provided in the area of the plastic plate an approach that ümspritzen the Kunststoffstif- te to facilitate the formation of the plastic plate. It is then the approach in the same way or at least similar way to structure, as in the partially isolated blade contacts. Generally it should be noted that it may be advantageous, instead of positioning wings 100, as formed of sheet metal in FIG. 7 are shown, even then an approach to the connector pins or. To provide blade contacts, if none of the metal contacts of the connector bridge is provided with a partial plastic insulation. This is considered to be inventive in itself.
• Fig. 2 also shows that a crank 5 can be provided in the transition region between the shoulder 2e and the crimp sleeve 2d, which facilitates feeding the strands by slight displacement of the geometric location and / or favors the dynamic behavior of the metal elements during the crimping process.
• Fig. 2 further shows that it is possible first to embed the partially insulated plastic sleeves in a plastic plate element ⁇ , ie to encase it or to encase it. - Inject or put them in such and then use this in a larger plate 7, in particular with an insertion 8 z. B. can be designed in bridge form.
• a plastic plate element ⁇ ie to encase it or to encase it.
• B. can be designed in bridge form.
• the design of the introducers 8 reference is made to various design options, as they are other applications of the present inventor can be removed.
• FIG. 3 shows that optionally connector bridges for different handle body shapes using the plastic element 6 are available as marketable elements.
• FIG. 4 shows a connector bridge which is largely as shown in FIG. 2 corresponds, but is formed for a two-pole arrangement. If desired, an introducer aid arrangement can nevertheless correspond to one another, regardless of the use of only two terminals, as is required or preferred in the case of three power supply contacts.
• Fig. 5 shows the direct embedding of three blade contacts, two of which are partially insulated and one provided with plastic attachment in the height region of the plastic plate, in a plastic plate. It should be noted that at the grounding blade contact 9, the dividing line 9a is very clearly visible, which results from folding a metal sheet during punching.
• Fig. 6 shows a further two-pole plug bridge according to the present invention.
• FIG. 7 shows the state of the art in which the height of the contact pins is determined by lugs 100 which are mounted on bearing surfaces 101 on a plastic plate.
• This type of training is disadvantageous in terms of precision and production even if no partial insulation of the con- tact ⁇ pins is required.

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• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Connector Housings Or Holding Contact Members (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

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ID=34960175

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (5)

Citations (3)

• 2004
  • 2004-12-23 DE DE200410063485 patent/DE102004063485A1/de not_active Withdrawn
  • 2004-12-30 EP EP04816289A patent/EP1831964A1/de not_active Withdrawn
  • 2004-12-30 CN CN2004800447132A patent/CN101103495B/zh active Active
  • 2004-12-30 AU AU2004325908A patent/AU2004325908B2/en active Active
  • 2004-12-30 WO PCT/DE2004/002841 patent/WO2006066518A1/de active Application Filing
  • 2004-12-30 DE DE112004003018T patent/DE112004003018A5/de active Pending

Patent Citations (3)

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