CN113169461A - Contact element - Google Patents
Contact element Download PDFInfo
- Publication number
- CN113169461A CN113169461A CN201980079613.XA CN201980079613A CN113169461A CN 113169461 A CN113169461 A CN 113169461A CN 201980079613 A CN201980079613 A CN 201980079613A CN 113169461 A CN113169461 A CN 113169461A
- Authority
- CN
- China
- Prior art keywords
- conductor
- contact element
- contact
- longitudinal section
- tongue
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000002966 varnish Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 10
- 238000003825 pressing Methods 0.000 abstract description 8
- 210000002105 tongue Anatomy 0.000 description 16
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical class [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
-
- 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
- H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
- H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Abstract
The invention relates to a contact element. The contact element has a particularly annular conductor receptacle. According to the invention, the conductor receptacle has a contact bearing which is designed to electrically contact the conductor longitudinal section. The contact element has at least one tongue or lug which is integrally formed on the conductor receptacle and is designed to contact the longitudinal section of the conductor with at least one transverse component or transversely in a pressing manner. The tongue is designed to swing in towards the wire and to contact the wire at least over a longitudinal section of the wire in a cutting-in and/or pressing-in manner. The tongue or the web is designed to press the longitudinal section of the line against the pressure bearing in the pivoted-in state.
Description
Technical Field
The invention relates to a contact element having a particularly annular conductor receptacle.
Background
A contact element with an elastically designed contact tongue for contacting a connecting element is known from DE 19735409 a 1.
Disclosure of Invention
According to the invention, the conductor receptacle has a contact bearing which is designed to electrically contact the conductor longitudinal section. The contact element has at least one tongue or lug which is integrally formed on the conductor receptacle and is designed to contact the conductor section with at least one transverse component or transversely in a pressing manner. The tongue is designed to swing in towards the wire and to contact the wire at least over a longitudinal section of the wire in a cutting-in and/or pressing-in manner. The tongue or the web is designed to press the line section against the pressing support in the pivoted-in state. Advantageously, for cold contacting the conductor, a contact element can be provided cost-effectively. It is further advantageous if the wire can be scraped during the pivoting movement of the tongue or the connecting lug when the tongue or the connecting lug is pivoted into the pivoted-in position of the connecting lug, so that the oxide layer and/or the lacquer layer can be removed during the contacting. Further advantageously, by means of the contact element thus formed, the conductor can be held largely free of load in its longitudinal direction during the contacting process.
Preferably, the contact element is designed such that, in the case of a lug or tongue which is pivoted or bent outward from the passage opening, the line can be introduced through the passage opening into the line receptacle without force, in particular without a force which is arranged opposite the contact element. Advantageously, a plurality of wires can be contacted, which are similarly bent under the generation of a similar pressing force in the case of a plurality of contact elements, into which the wires can be pushed against a spring force in the longitudinal direction thereof for contacting the contact elements.
In a preferred embodiment, the contact element, in particular the line receptacle, has a passage, wherein the press-on support is formed by a passage wall and the tongue or the web projects into the passage in the pivoted-in state. Preferably, the passage is surrounded by an annular wire receptacle. The contact element can therefore advantageously be provided in a space-saving and cost-effective manner.
In a preferred embodiment, the tongue or the web has at least two, or only two, raised regions formed at a distance from one another on the tongue or the web, which raised regions are designed to contact the conductor at two mutually different locations in the circumferential direction. In this case, the raised region preferably forms the pressure bearing. Therefore, the wires can be reliably electrically contacted. Further advantageously, the wires can be electrically contacted with low impedance.
In a preferred embodiment, the tongue has at least one cut, which is designed to remove a coating of varnish of the conductor at least over a longitudinal section of the conductor and to electrically contact the conductor there. Advantageously, it is possible to electrically contact an enamelled copper wire, which is for example a component of an electric motor winding of a stator of an electric machine, in a simple and cost-effective manner.
In a preferred embodiment, the contact element has a press-in contact, which is designed to be plugged into a printed circuit board. Advantageously, with the contact element thus configured, a press connection can be produced between the contact element and the conductor without mechanically loading the printed circuit board when the contact element is connected by the conductor.
In a preferred embodiment, the tongue or the web has a toggle joint, which is configured to increase the pressure towards the longitudinal section of the wire. Advantageously, therefore, a high contact pressure can be generated in order to produce a cold-welded connection between the contact element, in particular the tongue, and the wire longitudinal section or additionally between the contact bearing and the wire longitudinal section. That is, it has been recognized that: the effective resistance of the press-connection, which is dependent on the pressing force, decreases significantly with increasing pressing force.
In a preferred embodiment, the passage is rectangular or oval in shape. Preferably, the annular wire receptacle is of rectangular or oval configuration. Advantageously, the tongue is able to swing within the through-opening towards the conductor.
In a preferred embodiment, the contact element is formed at least in the region of the conductor receptacle or completely by a sheet metal part, in particular a stamped or laser-cut sheet metal part. In this embodiment, the contact elements are configured as a stamped grid, also referred to as a lead frame. Advantageously, the contact element can be provided cost-effectively by stamping, laser cutting and sheet-metal deformation, in particular bending or flanging.
In a preferred embodiment, the contact element has at least one raised region which is arranged in the region of the pressure bearing and is configured to contact the longitudinal section of the line at least one circumferential section. Preferably, the contact element has two or three raised regions in the region of the pressure bearing, which raised regions are configured to contact the line in the region of the longitudinal section. Advantageously, multiple contacts through the wire can produce low effective resistance and reliable contact.
In a preferred embodiment, the line receptacle is formed by a ring, wherein the connecting lug or tongue is located in the passage in the pivoted-in state, the passage being surrounded by the ring. Advantageously, the contact element can be designed in a space-saving manner.
Preferably, the contact element is made of copper. The copper is preferably a copper alloy. Such as a copper-tin alloy, in particular CuSn4, CuSn6, or a copper alloy according to US standard universal numbering system C18018. In another embodiment, the copper alloy has 0.8 to 1.8 percent nickel, 0.15 to 0.35 percent silicon, and 0.01 to 0.05 percent phosphorus. Preferably, the copper alloy is an alloy according to standard UNS-C-19010.
The invention also relates to a method for contacting a longitudinal section of the conductor. In the method, the line section is guided through an eyelet, in particular an eyelet loop, of the contact element, and a lug formed on the eyelet is pivoted into the eyelet in order to produce an electrical contact with the line longitudinal section. During the inward pivoting, the longitudinal section of the conductor is pressed against a pressing bearing which is formed by a bore wall, in particular a circumferential section of a bore ring of the bore, and in this case the conductor is contacted by means of the tongues, in particular by cold welding.
Drawings
The invention will now be explained below with the aid of figures and other embodiments. Further advantageous embodiment variants result from the features illustrated in the figures and in the dependent claims. Wherein:
fig. 1 shows an embodiment of a contact element for contacting a line section, wherein the contact element has a connecting lug which can be bent towards the line section and which can press the line section towards a pressing bearing;
fig. 2 shows the contact element shown in fig. 1 in a sectional illustration, wherein the connecting piece is bent upwards in an angled manner;
fig. 3 shows the contact element shown in fig. 2, wherein the connecting lug is bent and contacts the conductor in a pressed manner;
fig. 4 shows a variant of the wire receptacle for the contact element, in which the web is designed with a toggle joint.
Detailed Description
Fig. 1 schematically shows an embodiment of a contact element 1 in a top view. The contact element 1 has a conductor receptacle 3 in the form of an annular eyelet. In this exemplary embodiment, the conductor receptacle 3 surrounds a passage 15 into which a lug 4, in particular a bent lug, formed on the conductor receptacle 3 projects.
Fig. 1 shows the contact element 1 in a plan view and in a side view. The annularly configured wire receptacle 3 has two raised regions 7 and 8 at the circumferential section of the annular wire receptacle 3 and spaced apart from one another along the circumferential section of the annular wire receptacle 3 and molded thereto. The raised regions 7 and 8 each project into the passage 15 and together form a pressure bearing for the longitudinal section of the line. The web 4 has two raised regions 5 and 6 in the region of the end sections opposite the raised regions 7 and 8, which are opposite one of the projections 7 or 8, respectively, at a distance from one another. In this exemplary embodiment, the raised regions 5, 6, 7 and 8 enclose between one another a passage region 2 of the passage 15, in which passage region the conductor end sections to be contacted can be arranged.
The contact element 1 has a press-in pin 9, which is molded onto the conductor receptacle 3. The press-in pin 9 extends along a longitudinal axis 16. The connecting lug 4 is arranged opposite the press-in pin 9 at the annular section of the conductor receptacle 3 and extends along the longitudinal axis 16.
The contact element 1 is formed with a smaller thickness extension along the longitudinal axis 16 in the longitudinal section 11 than along the longitudinal axis 16 in the region adjacent thereto. In this exemplary embodiment, the longitudinal section 11 comprises a part of the connecting lug 4 and a part of the press-in pin 9, in particular in the region in which both the press-in pin 9 and the connecting lug 4 are molded to the conductor receptacle 3, in particular to the ring section of the conductor receptacle 3. The connecting web 4 can thus be bent out of the passage 15 in an oscillating manner, in particular due to the weakening formed in the sheet metal material in the region of the profiled conductor receptacle 3. Likewise, the press-in pin 9 formed on the end section 10 of the contact element 1 along the longitudinal axis 16 can be bent due to the weakening of the sheet metal material formed in the region of the molded conductor receptacle 3.
Fig. 2 shows schematically a contact element 1, which has already been shown in fig. 1, in a modified embodiment 1'. In the modified embodiment 1', the press-in pin 9 is bent at right angles in the region of the weakened longitudinal section 11 in this embodiment. In the region of the weakened longitudinal section 11, the connecting web 4 is pivoted out of the opening 15 by means of a pivoting movement 14, wherein for this purpose a pivot joint 13 is formed in the weakened longitudinal section 11 along the longitudinal axis. Fig. 2 shows the web 4' which is pivoted out of the passage 15 about the pivot axis 13 by means of a pivoting movement 14. The connecting lug 4' has a cutting 19 at the free end, which is designed to cut or grind away at least one oxide or lacquer layer of the conductor. After the lug 4 has been pivoted outward into the pivoted-out position 4', the wire end section 12 can be introduced into the passage 15, in particular into the region 2 of the passage 15, as indicated by the arrow. The wire end section 12 is intended to be contacted by the contact element 1', in particular by the outwardly pivoted web 4', which is also bent at an angle in fig. 2.
Fig. 3 shows schematically the contact element 1 ″ shown in fig. 2, the connecting lug 4 being pivoted again from the position 4' shown in fig. 2 along the pivoting movement 14 into the passage opening 15 into the position 4 ″. In this case, the end section 12 of the wire is contacted both in a cutting-in and in a pressing-on manner at the longitudinal section 18 of the wire.
The contact element 1 ″ shown in fig. 3 is reinforced along the longitudinal axis 16 at least in the region of the weakened longitudinal section 11 by means of a plastic part 17 injection-molded onto the contact element 1. Advantageously, both an increase in the bending stiffness of the contact element 1 and an electrical insulation of the contact element 1 at least in the region of the conductor receptacle 15 can be achieved by means of the plastic part 17.
Fig. 4 shows schematically a lug 20 as a variant of the lug 4 shown in fig. 1, which can be realized at the contact element 1 instead of the lug 4.
The connecting sheet 20 has a toggle 21, which is designed, as indicated by an arrow 23, to be pressed when the connecting sheet 20 is pressed into the passage 15 and to press the end of the connecting sheet 20, in particular the cut 22, against the conductor 12. In this case, the web 20 pivots about the pivot joint 13. After the connecting lug 20 has been pivoted in, in particular completely, into the passage 15, the wire 12 is then contacted in a cut-in and, in particular, pressed in.
Claims (11)
1. A contact element (1) with a conductor receptacle (2, 3),
it is characterized in that the preparation method is characterized in that,
wherein the conductor receptacle (2, 3) has a press-on bearing (7, 8) which is designed to electrically contact a conductor longitudinal section (12, 18), and the contact element (1) has at least one tongue (4) or lug (4) which is formed on the conductor receptacle (3) and is designed to contact the conductor longitudinal section with at least one transverse component or transversely in a press-on manner, wherein the tongue or lug (4) is designed to be pivoted in toward the conductor (12) and to contact the conductor (12) at least on the conductor longitudinal section (18) in a cut-in manner and/or in a press-in manner, and to press the conductor longitudinal section (18) in the pivoted-in state toward the press-on bearing (7, 8).
2. Contact element (1) according to claim 1,
it is characterized in that the preparation method is characterized in that,
the contact element has a passage, wherein the pressure bearing is formed by a passage wall and the tongue or the web projects into the passage in the pivoted-in state.
3. Contact element (1) according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the tongue or web (4) has at least two or only two raised regions (7, 8) which are formed at a distance from one another on the tongue or web (4) and are designed to contact the conductor (12) at two mutually different points in the circumferential direction and to form the pressure bearing (18).
4. Contact element (1) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the tongue or the connecting tab (4) has at least one cut (19) which is designed to remove a varnish coating of the wire (12) at least over the wire longitudinal section (18) and to contact the wire (12) there.
5. Contact element (1) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the contact element (1) has a press-in contact (9) which is designed to be plugged into a printed circuit board.
6. Contact element (1) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the tongue or web (4) has a toggle (21) which is designed to increase the pressure on the longitudinal section (18) of the line.
7. Contact element (1) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the passage opening (15) is rectangular or oval in shape.
8. Contact element (1) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the contact element (1) is formed at least in the region of the conductor receptacles (2, 3) by a sheet metal material, which is in particular stamped.
9. Contact element (1) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the contact element (1) has at least one raised region (7, 8) which is arranged and configured in the region of the pressure bearing in order to contact the line section at least one circumferential section.
10. Contact element (1) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the conductor receptacle (2, 3) is formed by a ring, wherein the connecting lug (4) or tongue is located in the through-opening (15) in the pivoted-in state (4 '').
11. A method for contacting a longitudinal section (18) of a conductor, wherein the conductor (12) is guided through an eyelet (2, 3) of a contact element, and in order to produce an electrical contact with the longitudinal section (18) of the conductor, a lug (4) formed at the eyelet (2, 3) is pivoted into the eyelet (2, 3) and presses the longitudinal section (18) of the conductor against a contact support (7, 8), which is formed by an eyelet wall (3) of the eyelet (2, 3), and the conductor (12) is contacted in this case, in particular, by cold welding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018220773.9 | 2018-12-03 | ||
| DE102018220773.9A DE102018220773A1 (en) | 2018-12-03 | 2018-12-03 | Contact element |
| PCT/EP2019/079679 WO2020114685A1 (en) | 2018-12-03 | 2019-10-30 | Contact element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113169461A true CN113169461A (en) | 2021-07-23 |
| CN113169461B CN113169461B (en) | 2024-01-16 |
Family
ID=68468680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980079613.XA Active CN113169461B (en) | 2018-12-03 | 2019-10-30 | contact element |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN113169461B (en) |
| DE (1) | DE102018220773A1 (en) |
| WO (1) | WO2020114685A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019126564A1 (en) * | 2019-10-02 | 2021-03-25 | Unger Kabel-Konfektionstechnik GmbH | Direct contacting device for fixing and electrically contacting a conductor on a circuit board |
| DE102023121565A1 (en) * | 2023-08-11 | 2025-02-13 | WAGO Verwaltungsgesellschaft mit beschränkter Haftung | conductor connection terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19735409A1 (en) * | 1997-08-14 | 1999-03-04 | Kathrein Werke Kg | Printed circuit board with contact element |
| US20040077208A1 (en) * | 2002-09-27 | 2004-04-22 | Brown Donald C. | Insulation stripping connector for insulated wires |
| TW200642214A (en) * | 2005-04-11 | 2006-12-01 | Tyco Electronics Corp | Poke-in wire connector and contact therefor |
| CN102668247A (en) * | 2009-10-19 | 2012-09-12 | 罗伯特·博世有限公司 | Solderless electrical connection |
-
2018
- 2018-12-03 DE DE102018220773.9A patent/DE102018220773A1/en active Pending
-
2019
- 2019-10-30 WO PCT/EP2019/079679 patent/WO2020114685A1/en active Application Filing
- 2019-10-30 CN CN201980079613.XA patent/CN113169461B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19735409A1 (en) * | 1997-08-14 | 1999-03-04 | Kathrein Werke Kg | Printed circuit board with contact element |
| US20040077208A1 (en) * | 2002-09-27 | 2004-04-22 | Brown Donald C. | Insulation stripping connector for insulated wires |
| TW200642214A (en) * | 2005-04-11 | 2006-12-01 | Tyco Electronics Corp | Poke-in wire connector and contact therefor |
| CN102668247A (en) * | 2009-10-19 | 2012-09-12 | 罗伯特·博世有限公司 | Solderless electrical connection |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020114685A1 (en) | 2020-06-11 |
| DE102018220773A1 (en) | 2020-06-04 |
| CN113169461B (en) | 2024-01-16 |
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