EP3685479A1 - Contact torsadé pour un composant électrique et procédé de fabrication d'un contact torsadé - Google Patents

Contact torsadé pour un composant électrique et procédé de fabrication d'un contact torsadé

Info

Publication number
EP3685479A1
EP3685479A1 EP18773412.4A EP18773412A EP3685479A1 EP 3685479 A1 EP3685479 A1 EP 3685479A1 EP 18773412 A EP18773412 A EP 18773412A EP 3685479 A1 EP3685479 A1 EP 3685479A1
Authority
EP
European Patent Office
Prior art keywords
piece
contact
stranded wire
electrical component
wire
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.)
Pending
Application number
EP18773412.4A
Other languages
German (de)
English (en)
Inventor
Yun Jiang
Karl Stoll
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.)
TDK Electronics AG
Original Assignee
TDK Electronics AG
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 TDK Electronics AG filed Critical TDK Electronics AG
Publication of EP3685479A1 publication Critical patent/EP3685479A1/fr
Pending legal-status Critical Current

Links

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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0228—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections without preliminary removing of insulation before soldering or welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H01F27/2828—Construction of conductive connections, of leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/10—Connecting leads to windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H01F2005/043—Arrangements of electric connections to coils, e.g. leads having multiple pin terminals, e.g. arranged in two parallel lines at both sides of the coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H01F2005/046—Details of formers and pin terminals related to mounting on printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • 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
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0249—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for simultaneous welding or soldering of a plurality of wires to contact elements

Definitions

  • the present invention relates to a strand contact for an electrical component, that is to say a contact region of the component which comprises a gate of a stranded wire,
  • the component in particular comprises a strand end.
  • the component is in particular an inductive component.
  • the stranded wire forms, for example, a functional element of the component.
  • the stranded wire forms a winding
  • a coil of the component in particular, it is a high-frequency wire.
  • the wire contact serves for the electrical connection of the
  • Stranded wire for example, to a connection piece of the
  • the Litzentern can also be designed for direct contact with a printed circuit board.
  • each individual wire of the stranded wire has an insulation in the form of a coating.
  • the entire stranded wire may have a sheath. The individual wires can be twisted together.
  • the individual wires can be twisted together.
  • a strand contact is made by soldering, wherein the temperature is chosen so high that in the Production of the strand contact at the same time the insulation is removed.
  • the temperature is chosen so high that in the Production of the strand contact at the same time the insulation is removed.
  • Insulations of polyester imides or polyimides of the case In this case, a two-stage production of the lead contact is often required. It is in a first
  • Step removes the insulation, for example mechanically removed, by burning or by chemical methods.
  • a soldering process is then performed to establish a mechanical and electrical connection.
  • the disadvantage of such soldering methods is that the heated air above the soldering liquid comes in direct contact with a functional element of the component, for example a winding.
  • an electrical component is specified with a strand contact.
  • the strand contact has a portion of a stranded wire.
  • the stranded wire has a plurality of individual wires.
  • the stranded wire forms, for example, a winding of the component, in particular a coil.
  • Component is designed for example as an inductive component.
  • each individual wire within the winding is surrounded by a separate insulation.
  • it is a paint insulation.
  • the stranded wire may be from an outer
  • Isolation in particular a sheath to be surrounded.
  • the stranded wire can also be free of an additional outer sheath. In particular, it is a high-frequency wire.
  • the LitzenTER is designed for electrical contacting of the Litzendrahts.
  • the Litzendrahts are designed for electrical contacting of the Litzendrahts.
  • the Litzenutton can be arranged at a small distance from a winding of the Litz wire, for example, at a distance of a few mm.
  • the Litzenutton also has a contact piece, which at least partially surrounds the portion of the Litzendrahts.
  • the contact piece is connected to the stranded wire in particular by thermal diffusion bonding.
  • the connection by thermal diffusion bonding is recognizable on the finished device.
  • diffusion bonding the individual wires are connected to the contact piece under the action of pressure and at elevated temperature. The Temperature is lower than the melting temperature of the material of the contact piece and the material of
  • the strand contact may have residues of the insulation, for example in the form of clumped particles.
  • the isolation of the individual wires for example, in diffusion bonding, the isolation of the individual wires
  • the lead contact is solderless, that is, made without soldering.
  • the soldering is solderless, that is, made without soldering.
  • the strand contact is in particular both free from a solder material used during soldering as well as free from another
  • Connecting material such as e.g. a conductive adhesive.
  • the contact piece is electrically conductive and has
  • the contact piece is
  • the contact piece may serve as a current carrier for the removal of the insulations of the Litz wire in the manufacture of the Litzentagss.
  • the contact piece can also ensure a mechanical fixation of the stranded wire. For example, that can
  • connection piece to fix the stranded wire to a connection piece of the component or be designed as a connection piece.
  • connection piece is arranged for example on a carrier element of the component.
  • the carrier element may be designed to carry a winding of the Litzendrahts.
  • Carrier element may alternatively or additionally be designed to carry the connecting piece or other elements.
  • the carrier element can also be a housing part of the component.
  • the carrier element is for example made of an electrically insulating material.
  • the stranded wire and the attachment piece can each have a free end. For example, the free ends of the stranded wire and tie-piece point into the same
  • the free ends can be flush with each other.
  • the connecting piece has a conductive, in particular a metallic material.
  • a conductive in particular a metallic material.
  • Connecting piece designed as a contact pin.
  • Connecting piece may be formed in the form of a single contact finger.
  • the connecting piece can also several
  • connection piece is designed in the form of a fork with two prongs.
  • the attachment piece can also have a different shape.
  • the component may have a plurality of connecting pieces.
  • the component has a plurality of adjacently arranged connection pieces.
  • the device can also work have two opposite sides connecting pieces.
  • the component may have a plurality of stranded wires, which are each connected to a connection piece.
  • the device includes
  • the connecting piece can be designed in particular for connection to a printed circuit board.
  • the connector for PTH (pin through hole) mounting is formed.
  • the connector may also be SMD (Surface Mountable Device), i. be designed for surface mounting.
  • the connector is
  • the component may have a plurality of connecting pieces.
  • a connection piece is provided for each attachment piece.
  • the connector is electrical with the Litzenbit
  • the connector may be electrically connected to the contact piece and / or the connecting piece.
  • connection piece is aligned laterally and the connection piece is oriented downwards.
  • Connecting piece is, for example, the side of the
  • Carrier element and the connector is down from the support element.
  • the connecting piece and the connecting piece can also run parallel to one another.
  • the connecting piece and the connecting piece can be formed in one piece.
  • the fitting and the attachment piece are different ends of an angle.
  • the contact piece has two
  • the subregions are in the form of two legs.
  • the stranded wire between the subregions is inserted and the subregions are then at
  • the subregions are related to the stranded wire
  • both sections are connected to individual wires by diffusion bonding.
  • the contact piece is as
  • connection piece in particular establishes a connection to a connection piece of the component.
  • An embodiment of the connecting piece with two partial areas, in which the stranded wire is inserted, enables a stable arrangement of the stranded wire on
  • the contact piece is designed as an enveloping element, which at least partially surrounds the stranded wire.
  • the cladding element is, in particular, a so-called "splice crimp."
  • the cladding element is designed as a metallic band piece bent around the conductors.
  • the enveloping element formed as a contact piece is present in addition to a connection piece on which the stranded wire is arranged.
  • the sheath element may be the function of a current carrier during thermal diffusion bonding.
  • the enveloping element can ensure a reliable fixation of the contact piece on the connecting piece.
  • the wrapping element can
  • Litz contact is formed only by a connection piece and the portion of the Litzendrahts, the connection piece referred to as a contact piece.
  • a contact piece in which the Litzentaking of an enveloping element, a
  • the enveloping element is referred to as a contact piece.
  • the LitzenAuth no connection piece and is thus only from
  • the lead contact thus serves for direct connection to a printed circuit board, without an additional connection piece.
  • Component may be a holding device for fixing the
  • a metallic piece of tape is provided, for example, in a flat shape and bent around the conductors arranged next to one another.
  • the enveloping element receives its shape, in particular a sleeve shape, thus only in the arrangement around the ladder.
  • lateral areas of the strip piece may overlap. Due to the overlapping of the lateral regions, such an enveloping element can be produced from a prefabricated sleeve, such as a cable lug, for example.
  • an electrical component having a litz contact is disclosed
  • the strand contact comprises a section of a stranded wire having a plurality of individual wires and a connection piece.
  • the attachment piece is fastened to a carrier element of the component.
  • the strand contact is in particular free from soldering, i.e., formed without a soldering process.
  • the component may have all the functional and structural properties of the device described above.
  • Tying piece can be an electrical connection of the
  • a method of making a stranded contact of an electrical device is disclosed.
  • the heald contact has a portion of a litz wire and a contact piece.
  • it may be the previously described Litzenplayer and the previously described device.
  • a stranded wire having a plurality of
  • the stranded wire can be an outer
  • Isolation for example in the form of a sleeve.
  • the contact piece is in one embodiment a connection piece, for example in the form of a rigid
  • connection piece is, for example, on a support element, in particular an insulating
  • the contact piece is an enveloping element, for example in the form of a "splice crimp."
  • the stranded wire can be arranged on a connecting piece and then an arrangement of the stranded wire arranged on the connecting piece with that as the contact piece
  • the attachment piece may not be present and only an arrangement of enveloping element and stranded wire is formed.
  • the stranded wire is connected to the contact piece by thermal
  • the stranded wire is connected to the contact piece
  • the arrangement is heated.
  • the insulation can be at least partially removed. The heating takes place for example by current flow.
  • the heating occurs due to the electrical resistance of the insulation.
  • a free end of the contact piece can be separated.
  • the free ends can be separated so that they are flush with each other.
  • the contact piece has two
  • Partitions between which the stranded wire is inserted into.
  • the partial areas can be pressed against the stranded wire during diffusion bonding.
  • the wire contact may also be suitable for other wires than for stranded wires.
  • it may be a single wire.
  • the device and the method are also disclosed with a connection of a contact piece with a different wire than with a stranded wire.
  • Figure 1A shows an embodiment of a Litzen.s a
  • FIG. 1B shows an embodiment of a strand contact similar to the strand contact of FIG. 1A in an actually produced component in a sectional view
  • FIG. 2 shows the strand contact according to FIGS. 1A and 1B
  • FIGS. 3A to 3C process steps in the production of the
  • FIG. 4A shows a further embodiment of a strand contact in a schematic sectional view
  • FIG. 4B shows an embodiment of a strand contact similar to the strand contact of FIG. 4A in an actually produced component in a sectional view
  • FIG. 5 shows the strand contact according to FIGS. 4A and 4B
  • FIGS. 6A to 6E process steps in the manufacture of the strand contact of FIGS. 4A, 4B and 5,
  • Figure 7 shows a tongue embodiment of a component
  • FIG. 8 shows a further embodiment of a strand contact in a component in a sectional view
  • Figure 9 shows an embodiment of a device with the
  • Figure 1 shows a Litzenlist 1 having a
  • the contact piece 100 contacts the
  • FIG. 1 shows this
  • the stranded wire 2 has a plurality of individual wires 4.
  • the individual wires 4 are with each other and with the
  • the contact piece 100 electrically and mechanically connected.
  • the contact piece 100 and / or the stranded wire 2 are
  • part of an electrical component for example, part of an electrical component
  • an inductive component in particular an inductive component.
  • the stranded wire 2 forms in particular a winding (see, for example, winding 18 of Figure 5) of an electrical component
  • the individual wires 4 are each surrounded by insulation, at least within the winding.
  • Each individual wire 4 has a separate insulation.
  • the insulation is in particular a paint insulation. In this case, it is enamel wire strands.
  • the stranded wire 2 is in particular a high-frequency stranded wire.
  • an outer periphery of the Litzendrahts 2 can within the winding of an insulation, for. B. be surrounded by a silk wrapping. This outer sheath can but does not have to be present.
  • the contact piece 100 has two subregions 5, 6, between which the stranded wire 2 is accommodated. In the production of the conductor connection 1, the sections 5, 6 are compressed. The resulting deformation of the contact piece 100 remains.
  • Subregions 5, 6 are each formed, for example, in the form of a leg.
  • the contact piece 100 may also have a different shape.
  • the contact piece 100 is designed, in particular, as a connection piece 3, wherein the connection piece 3 electrically connects the stranded wire 2 to a connection piece (see connection piece 10 from FIG. 2) of the component.
  • the contact piece 100 is connected to the stranded wire 2 by
  • Contact piece 100 compressed and heated at the same time.
  • the temperature during heating is below the melting temperature of the parts to be joined.
  • the individual wires 4 are still surrounded by the insulation.
  • the insulation melts during the diffusion bonding, so that an electrical connection of the individual wires 4 can be produced.
  • this insulation can also melt during the diffusion bonding, so that an electrical connection of the stranded wire 2 to the contact piece 3 is made possible.
  • Isolation e.g. clumped particles 7 can be seen that in the diffusion bonding initially the insulation was still present.
  • the insulation is removed prior to making the strand contact 1. This is a complex process step, which is not necessary here.
  • the insulation is removed by applying a solder material. This leads to solder balls can be present at the Litzentrust and that during soldering damage to the component by the high
  • Temperature can occur.
  • damage can occur if a winding of the Litz wire is arranged very close to the Litzenbit, for example in the range of a few mm.
  • FIG. 1B shows a strand contact 1, corresponding to FIG
  • Figure 2 shows a perspective view of a section of a component 8 comprising a Litzen truth 1 of a Litzendrahts 2 with a trained as a connecting piece 3 contact piece 100.
  • the Litzencard 1 is in particular as in the figures 1A and 1B executed.
  • the component 8 is, for example, an inductive component.
  • the component 8 has a winding (not shown) of the stranded wire 2. The winding can be arranged very close to the strand contact 1, in particular in the range of a few mm, for example with a distance of 1 to 10 mm.
  • the stranded wire 2 is led out of the winding and has an insulation 9 within the winding and also in the region directly adjacent to the winding.
  • Isolation 9 is formed, for example, by an insulating sleeve or other sheath, in which the
  • the insulation 9 can not be present either.
  • the individual wires 4 can also each be surrounded by a further insulation, for example by a lacquer layer.
  • Connecting piece 3 is made.
  • the insulation 9 is in the region of the conductor connection 1, ie in the region in which the stranded wire 2 is disposed inside the attachment piece 3, removed. In the area in which the stranded wire 2 leads out of the connection piece 3, the insulation 9 is present.
  • connection piece 3 is formed for example in the form of a fork, clamp, eye or a sleeve.
  • the connection piece 3 already has two partial regions 5, 6 which are shown in FIG. 1 and abut against opposite sides of the stranded wire 2.
  • the attachment piece 3 can also have other shapes, in particular forms that make it possible to
  • the connecting piece 3 has a conductive material
  • connection piece 3 is arranged, for example, on one side of the component 8.
  • the connection piece 3 is provided with a connection piece 10,
  • connection pin electrically connected.
  • the connection pin can be designed in particular for PTH mounting, in which the connection pin through a hole in the
  • Connector 10 may be formed for SMD mounting. In this case, the connector 10 extends
  • the connector 10 of Figure 2 is bent outwards or inwards.
  • the end of the Litzendrahts 2 by the connector 10 of Figure 2 is bent outwards or inwards.
  • Connecting piece 3 also fixed mechanically.
  • the connecting piece 3 may be formed integrally with the connecting piece 10. In particular, it may be a
  • One end of the metal angle may form the connecting piece 3 and the other end the connecting piece 10.
  • the middle part of the metal angle can pass through the carrier element 22, for example from
  • the component 8 has, for example, a plurality of
  • connection pieces 3 are arranged, for example, next to each other and the connecting pieces 10 below the
  • the connecting pieces 3 are
  • fittings 10 can on the
  • Carrier element 22 may be arranged.
  • connection piece 3A to 3C process steps in the production of a conductor connection 1 of a Litzendrahts 2 are shown with a connection piece 3.
  • the method is suitable, for example, for producing the conductor connection 1 shown in FIGS. 1 and 2.
  • FIG. 3A shows a first method step in which a stranded wire 2 is inserted into a contact piece 100, in particular into a contact piece 100 designed as a connection piece 3. It is, for example, an end of a Litz wire 2, which is wound into a coil.
  • the contact piece 100 has the shape of a fork with two
  • the stranded wire 2 has a plurality of individual wires 4, for example 4 to 3000 individual wires 4.
  • the stranded wire 2 is surrounded by an outer insulation 9.
  • the insulation 9 is in particular formed as insulating, in which all the individual wires 4 are arranged.
  • the stranded wire 2 can also have no outer insulation 9.
  • Each individual wire 4 is surrounded by an inner insulation 12, which is formed for example as a lacquer layer.
  • the individual wires 4 have, for example, copper.
  • thicknesses between 0.02 and 0.5 mm.
  • FIG. 3B shows a further method step.
  • Subregions 5, 6 are compressed.
  • a tool in particular a crimping tool is used for this purpose.
  • it is a crimping tool.
  • the pressure exerted by both sides is indicated by arrows.
  • the stranded wire 2 is heated.
  • the electrodes 13, 14 may be integrated into the tool. Due to the ohmic
  • Insulations 9, 12 at least partially. Remained in stranded wire 2 but also molten remnants of
  • the exposed individual wires 4 connect to each other
  • the method can also be used as hot crimping or
  • Diffusion welding can be called.
  • FIG. 3C shows the strand contact 1 after
  • the described method makes it possible to concentrate the heating to remove the insulation 9, 12 to a small area on the contact piece 100. This is difficult in conventional soldering possible.
  • the hot crimping process is a well controllable and simple process, allowing a reliable electrical and electrical process
  • FIG. 4A shows a further embodiment of a
  • Conductor connection 1 comprising a stranded wire 2 and a contact piece 100 in a sectional view across the
  • the enveloping element 15 encloses the stranded wire 2 and the
  • connection piece 3 is not executed here in the form of a fork, but has a simple rectangular shape in cross section.
  • the connection piece 3 is for example rigid.
  • the attachment piece 3 has, for example, a pin shape.
  • the stranded wire 2 is on the
  • Connecting piece 3 arranged.
  • the stranded wire 2 may also be guided around the connection piece 3.
  • the enveloping element 15 is a metallic band piece
  • the enveloping element 15 is bent about a longitudinal axis of the connecting piece 3. In this case, edge regions 16, 17 of the enveloping element 15 may overlap.
  • the enveloping element has two opposite subregions 5, 6.
  • the sheath element 15, the stranded wire 2 and the attachment piece 3 are mechanically and electrically connected to each other. It is also possible for residues of insulation 9, 12 in the form of particles 7 or the like to be present here. to be available.
  • the strand contact 1 can be produced by diffusion bonding.
  • FIG. 4B shows a strand contact 1, corresponding to FIG.
  • Figure 5 shows a perspective view of a section of a component 8 comprising a LitzenWallet 1, which is formed by one end of a Litzendrahts 2, a contact piece 100 and a connection piece 3 according to Figures 4A and 4B.
  • the component 8 from FIG. 2 can be designed similarly.
  • the component 8 is an inductive component.
  • the component 8 has one or more windings 18 and one or more stranded wires 2.
  • the ends of the stranded wires 2 are each with
  • the attachment pieces 3 are for example in a row on two opposite side of the attachment pieces 3 .
  • connection pieces 3 are connected to a carrier element 22 of the component 8.
  • the winding 18 is arranged on the carrier element 22, the winding 18 is arranged.
  • the carrier element 22 may also extend partially or completely into the winding 18.
  • FIGS. 6A to 6E show method steps in the production of a strand contact 1 comprising one end of a stranded wire 2 and a connection piece 3, in which an additional covering element 15 is used as the contact piece 100.
  • the method is suitable for example for
  • FIG. 6A shows a first method step in which a stranded wire 2 is arranged on a connecting piece 3. It is, for example, an end of a Litz wire 2, which is wound into a coil.
  • the Litzendraht 2 becomes for example, placed on the connecting piece 3 or wound around the connecting piece 3.
  • connection piece 3 has a simple rectangular shape.
  • the attachment piece 3 can also have a different shape, which is suitable for connection to the stranded wire 2.
  • the Litzendraht 2 and / or the connecting piece 3 are
  • connection piece 3 may be connected as in Figure 2 with a connector 10. In contrast to FIG. 1, the connecting piece 3 does not have to have any opposite partial areas 5, 6.
  • the stranded wire 2 is provided with a sheathing insulation 9 and has a plurality of individual wires 4, which are each provided with insulation 12. Alternatively, the sheathing insulation 9 may not be present.
  • the enveloping element 15 has as material
  • the band piece 19 is bent around the arrangement of stranded wire 2 and connecting piece 3.
  • the arrangement is placed, for example, in a Umbiegevorraum, brought the piece of tape 19 and by force application (see arrows) wrapped around the arrangement. This is where you lie down
  • Such an enveloping element 15 is commonly referred to as a "splice crimp."
  • the enveloping element 15 differs from a prefabricated sleeve into which one or more conductors be plugged in.
  • the present envelope element 15 receives its sleeve shape only during its placement around stranded wire 2 and connection piece 3.
  • Connecting piece 3 are thus not inserted into the enveloping element 15.
  • the enveloping element 15 is formed integrally neither with the stranded wire 2 nor with the connecting piece 3.
  • FIG. 6B shows a further method step, analogous to the method step according to FIG. 3B.
  • the formed as an enveloping element 15 contact piece 100 has two portions 5, 6, between which the stranded wire 2 is arranged. In the process, force is applied to the arrangement of enveloping element 15, connecting piece 3 and 2 from two opposite sides
  • a first punch 20 is formed, for example, flat and is from below to the enveloping element 15th
  • a second punch 21, for example, has a curved shape and is pressed from above against the enveloping element 15.
  • the first stamp 20 can only one
  • the curved shape of the second punch 21 is used in particular for limiting the width of the conductor connection 1. This is for example advantageous if several
  • Conductor connections 1 are arranged side by side.
  • the stranded wire 2 is heated.
  • electrodes 13, 14 are applied to the punches 20, 21.
  • the electrodes 13, 14 may be integrated into the tool.
  • the contact piece 100, in particular the opposite portions 5, 6 are brought into contact with the electrodes 13, 14.
  • the stranded wire 2 is heated by the current flow, so that the insulation 9, 12th
  • the exposed individual wires 4 connect to each other
  • connection piece 3 connects to the envelope element 15.
  • FIG. 6C shows the strand contact 1 thus obtained. Due to the shape of the punches 20, 21, the strand contact 1 has a curved shape on one side and a flat shape on the opposite side. Due to the used
  • the LitzenTER 1 can completely or almost completely within the enveloping element 15 with the material of
  • Litzendrahtes 2 and the connecting piece 3 to be filled are, for example, in the case of a stranded wire 2, which is wound around the connecting piece 3, filled with the stranded wire 2, analogously to FIG. 1B.
  • Figure 6D shows the Litzenwid 1 using the example of
  • FIG. 6E shows the strand contact 1 with cut ends.
  • the stranded wire 2, the connecting piece 3 and the enveloping element 15 are thus formed flush with the end.
  • the component 8 can now be mounted with its connecting pieces 10 on a printed circuit board.
  • FIG. 7 shows a further embodiment of a component 8 having a strand contact 1 in a perspective view.
  • the component 8 is designed for SMD mounting.
  • the component 8 on a
  • connection pieces 10 extend in the lateral direction of the component 8. In particular, the connection pieces 10 extend in the horizontal direction with respect to a mounting surface of the component 8. The connection pieces 10 extend in the present case parallel to the attachment pieces 3. The attachment pieces 10 are directed outward like the attachment pieces 3.
  • Adapters 10 may alternatively be directed inward.
  • the component 8 for example, first the component 8 according to FIG. 5 is produced and subsequently the connecting pieces 10 are bent over.
  • the embodiment of the component 8 from FIG. 2 can also be designed for SMD mounting.
  • FIG. 8 shows a further embodiment of a
  • Strand contact 1 having one end of a stranded wire 2 and a contact piece 100.
  • the contact piece 100 is formed by an enveloping element 15, which is designed as described for FIGS. 4A and 4B.
  • the stranded wire 2 can also be designed in accordance with FIGS. 4A and 4B.
  • the heald contact 1 is otherwise made in accordance with FIGS. 6A to 6D.
  • the contact piece 100 is by thermal
  • the connector 10 may be formed directly from the Litzenlist 1 for connection to a printed circuit board.
  • FIG. 9 shows an embodiment of a component 8 with a strand contact 1 according to FIG. 8.
  • the component 8 has two stranded contacts 1.
  • the Litzenuttone 1 form the connecting pieces 10 for connection to a printed circuit board.
  • the Litzenuttone 1 are aligned in the vertical direction to a mounting plane of the device 8.
  • the component 8 is designed in particular for PTH mounting, wherein the
  • Strand contacts 1 are passed through the circuit board. It is also an embodiment for SMD mounting conceivable.
  • Strand contacts 1, are received for mechanical fixation in a holder 25.
  • the stranded wire 2 is fixed to the carrier element 22 of the component 8.
  • the holder 25 is electrically insulating and may be formed as part of the support member 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Processing Of Terminals (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

L'invention concerne un composant électrique (8) qui présente un contact torsadé (1) présentant un fil torsadé (2) pourvu d'une pluralité de fils individuels (4) et une pièce de contact (100) pour la mise en contact électrique du fil torsadé (2), ledit contact torsadé (1) étant fabriqué par liaison par diffusion thermique.
EP18773412.4A 2017-09-21 2018-09-18 Contact torsadé pour un composant électrique et procédé de fabrication d'un contact torsadé Pending EP3685479A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017121908.0A DE102017121908B4 (de) 2017-09-21 2017-09-21 Elektrisches Bauelement mit Litzenkontakt und Verfahren zur Herstellung eines Litzenkontakts
PCT/EP2018/075214 WO2019057713A1 (fr) 2017-09-21 2018-09-18 Contact torsadé pour un composant électrique et procédé de fabrication d'un contact torsadé

Publications (1)

Publication Number Publication Date
EP3685479A1 true EP3685479A1 (fr) 2020-07-29

Family

ID=63667907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18773412.4A Pending EP3685479A1 (fr) 2017-09-21 2018-09-18 Contact torsadé pour un composant électrique et procédé de fabrication d'un contact torsadé

Country Status (6)

Country Link
US (1) US11600433B2 (fr)
EP (1) EP3685479A1 (fr)
JP (1) JP6941731B2 (fr)
CN (1) CN111133638B (fr)
DE (1) DE102017121908B4 (fr)
WO (1) WO2019057713A1 (fr)

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* Cited by examiner, † Cited by third party
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DE102021201454A1 (de) * 2021-02-16 2022-08-18 Robert Bosch Gesellschaft mit beschränkter Haftung Verbindungsvorrichtung, insbesondere zur Verbindung eines elektrischen und/oder elektronischen Bauelements mit einem Leitersubstrat
DE102021124086A1 (de) 2021-09-17 2023-03-23 Kiekert Aktiengesellschaft Gehäuse, insbesondere Schlossgehäuse für einen Kraftfahrzeugtürverschluss

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Publication number Publication date
DE102017121908B4 (de) 2023-12-07
JP6941731B2 (ja) 2021-09-29
US11600433B2 (en) 2023-03-07
WO2019057713A1 (fr) 2019-03-28
CN111133638A (zh) 2020-05-08
US20200265992A1 (en) 2020-08-20
JP2020537284A (ja) 2020-12-17
DE102017121908A1 (de) 2019-03-21
CN111133638B (zh) 2022-07-29

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