CN113169461B - contact element - Google Patents
contact element Download PDFInfo
- Publication number
- CN113169461B CN113169461B CN201980079613.XA CN201980079613A CN113169461B CN 113169461 B CN113169461 B CN 113169461B CN 201980079613 A CN201980079613 A CN 201980079613A CN 113169461 B CN113169461 B CN 113169461B
- Authority
- CN
- China
- Prior art keywords
- wire
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002966 varnish Substances 0.000 claims description 2
- 230000003313 weakening effect Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 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
- 239000004922 lacquer Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 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 compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
-
- 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
Abstract
The present invention relates to a contact element. The contact element has an especially annular wire receptacle. According to the invention, the wire receiving part has a press-on bearing part which is designed to electrically contact the wire longitudinal section. The contact element has at least one tongue or web formed to the wire receptacle, which is configured to contact the wire longitudinal section with at least one transverse component or transversely in a pressing manner. The tongue is configured to swing in towards the wire and to contact the wire at least over the wire longitudinal section in a cut-in and/or pressed-in manner. The tongue or tab is configured to press the wire longitudinal section against the press-on support in the inserted state.
Description
Technical Field
The invention relates to a contact element having an especially annular conductor receptacle.
Background
A contact element with a resiliently embodied contact tongue is known from DE 197 35 A1 for contacting a connecting element.
Disclosure of Invention
According to the invention, the wire receiving part has a compression support which is designed to electrically contact the wire longitudinal section. The contact element has at least one tongue or tab formed into the wire receptacle, which tongue or tab is configured to contact the wire section with at least one transverse component or transversely in a pressed manner. The tongue is configured to swing in towards the wire and to contact the wire at least over the wire longitudinal section in a cut-in and/or pressed-in manner. The tongue or tab is configured to press the wire section against the press-on support in the inserted state. Advantageously, for cold contacting the wires, a contact element can be provided at low cost. It is further advantageous if, when the tongue or the lug is pivoted into the post-pivoting position of the lug, the conductor can be scraped off during the pivoting movement of the tongue or the lug, so that the oxide layer and/or the lacquer layer can be removed during contact. Further advantageously, by means of the contact element configured in this way, the conductor can be held largely unloaded in its longitudinal direction during the contact process.
Preferably, the contact element is designed such that the wire can be introduced into the wire receptacle through the opening without force, in particular without a force which is arranged opposite the contact element, in the case of a web or tongue which is pivoted or bent out of the opening. Advantageously, a plurality of wires can be contacted, which are similarly bent in the case of a plurality of contact elements with similar contact forces, which wires can be pushed into the contact elements in their longitudinal direction against the spring force in order to contact the contact elements.
In a preferred embodiment, the contact element, in particular the wire receptacle, has a through opening, wherein the contact bearing is formed by a through opening wall and the tongue or the web protrudes into the through opening in the pivoted-in state. Preferably, the through opening is surrounded by an annular wire receiving portion. The contact element can thus advantageously be provided in a space-saving and cost-effective manner.
In a preferred embodiment, the tongue or tab has at least two, or only two, mutually spaced raised areas molded onto the tongue or tab, the raised areas being configured to contact the wire at two mutually different locations in the circumferential direction. The raised region preferably forms the compression support. Thus, 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-out which is configured to remove a varnish layer of the wire at least over the wire longitudinal section and to electrically contact the wire there. Advantageously, it is possible to electrically contact, in a simple and cost-effective manner, enamelled copper wires, for example, which are part of the electrical motor winding of the stator of an electrical machine.
In a preferred embodiment, the contact element has a press-in contact, which is designed to engage with a printed circuit board. Advantageously, by means of 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 tab has a toggle configured to enhance pressure against the longitudinal section of the wire. It is therefore advantageously possible to generate a high contact force 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 to say that it has been recognized that: the effective resistance of the press connection, which depends on the pressing force, decreases significantly with increasing pressing force.
In a preferred embodiment, the opening is configured rectangularly or elliptically. Preferably, the ring-shaped wire receptacle is rectangular or oval. Advantageously, the tongue is able to oscillate within the stoma towards the wire.
In a preferred embodiment, the contact element is formed at least in the region of the wire 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 stamped grids, also referred to as leadframes. 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 press bearing and is configured to contact the wire longitudinal section at least one circumferential section. Preferably, the contact element has two or three raised areas in the region of the contact support, which raised areas are configured to contact the conductor in the region of the longitudinal section. Advantageously, multiple contacts through the wire can result in low effective resistance and reliable contact.
In a preferred embodiment, the wire receptacle is formed by a ring, wherein the tab or tongue is in the inserted state in the through-opening, which is surrounded by the ring. Advantageously, the contact element can be configured in a space-saving manner.
Preferably, the contact element is composed of copper. The copper is preferably a copper alloy. Such as copper-tin alloys, in particular CuSn4, cuSn6, or copper alloys according to the US standard unified 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 the longitudinal section of the wire. In the method, the wire section is guided through an eyelet of the contact element, in particular an eyelet, and a connecting piece formed at the eyelet is pivoted into the eyelet in order to make electrical contact with the wire longitudinal section. When pivoted inward, the wire longitudinal section is pressed against a press bearing, which is formed by a circumferential section of an eyelet wall, in particular of an eyelet ring of the eyelet, and in this case contacts the wire, in particular by cold welding, by means of the tongue.
Drawings
The invention will now be explained hereinafter with the aid of the figures and other embodiments. Further advantageous embodiment variants result from the features illustrated in the drawings and in the dependent claims. Wherein:
fig. 1 shows an exemplary embodiment for a contact element for contacting a conductor section, wherein the contact element has a connecting web which can be bent toward the conductor section and can press the conductor section toward a press-on support;
fig. 2 shows the contact element shown in fig. 1 in a sectional view, wherein the connecting piece is bent upward in an angled manner;
fig. 3 shows the contact element shown in fig. 2, wherein the connecting piece is curved and contacts the conductor in a compressed manner;
fig. 4 shows a variant of a wire receptacle for a contact element, wherein the connecting piece is configured with a toggle.
Detailed Description
Fig. 1 shows schematically an embodiment for a contact element 1 in a top view. The contact element 1 has a wire receiving portion 3 in the form of an annular eye. In this embodiment, the wire holder 3 surrounds a through opening 15 into which a connecting piece 4, in particular a curved connecting piece, formed to the wire holder 3 protrudes.
In fig. 1, the contact element 1 is shown in a top view and in a side view. The annularly configured wire holder 3 has two raised areas 7 and 8 which are spaced apart from one another along the circumferential section of the annular wire holder 3 at the circumferential section of the annular wire holder 3 and are molded into the latter. The projection areas 7 and 8 each project into the through opening 15 and together form a compression support for the longitudinal wire section. The web 4 has two projection regions 5 and 6 in the region of the end sections opposite the projection regions 7 and 8, which are each located opposite one of the projections 7 or 8 at a distance from one another. In this embodiment, the raised areas 5, 6, 7 and 8 enclose between each other a through-opening area 2 of the through-opening 15, in which a wire end section to be contacted can be arranged.
The contact element 1 has a press-in pin 9 which is molded into the wire receptacle 3. The press-in pin 9 extends along a longitudinal axis 16. The web 4 is arranged opposite the press-in pin 9 at the annular section of the wire 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 on the longitudinal section 11 than along the longitudinal axis 16 in the region adjacent thereto. In this embodiment, the longitudinal section 11 comprises a part of the web 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 web 4 are molded onto the wire receptacle 3, in particular onto the annular section of the wire receptacle 3. The web 4 can thus be bent out of the through opening 15 in a swinging manner, in particular due to the weakened section of the sheet material formed in the region of the shaped conductor holder 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 weakened portion of the sheet material formed in the region of the molded wire receptacle 3.
Fig. 2 shows schematically a contact element 1, which has already been shown in fig. 1, in a variant embodiment 1'. In this variant embodiment 1', the press-in pin 9 is bent at right angles in the region of the weakened longitudinal section 11 in this example. In the region of the weakened longitudinal section 11, the web 4 is pivoted outward from the through 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 a longitudinal axis. Fig. 2 shows the web 4' which is pivoted outward from the opening 15 about the pivot axis 13 by means of a pivot movement 14. The connecting piece 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 wire. After the web 4 has been pivoted out to the pivoted-out position 4', the wire end section 12 can be introduced into the opening 15, in particular into the region 2 of the opening 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 in an angled manner in fig. 2.
Fig. 3 shows schematically the contact element 1″ shown in fig. 2, wherein the web 4 is pivoted from the position 4' shown in fig. 2 along the pivot movement 14 into the opening 15 into the position 4″. The end sections 12 of the wire are contacted at the wire longitudinal sections 18 both in a cut-in manner and in a pressed-in manner.
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, by means of the plastic part 17, not only an increase in the bending stiffness of the contact element 1 can be achieved, but also an electrical insulation of the contact element 1 at least in the region of the wire receptacle 15.
Fig. 4 shows a connecting piece 20, which is a variant of the connecting piece 4 shown in fig. 1, which can be realized at the contact element 1 instead of the connecting piece 4.
The connecting piece 20 has a toggle 21 which is configured, as indicated by arrow 23, to be pressed when the connecting piece 20 is pressed into the through opening 15 and to press the end of the connecting piece 20, in particular a cut 22, against the wire 12. The connecting piece 20 swings around the swing joint 13. After the connecting piece 20 has been completely inserted into the opening 15, it contacts the wire 12 in a cut-in manner and in particular in a particularly strong manner in a compressed manner.
Claims (13)
1. A contact element (1) with wire receptacles (2, 3),
it is characterized in that the method comprises the steps of,
wherein the wire receptacle (2, 3) has a compression support (7, 8) which is designed to electrically contact a wire longitudinal section (12, 18), and the contact element (1) has at least one tongue (4) or web (4) which is formed into the wire receptacle (3) and is designed to contact the wire longitudinal section with at least one transverse component or transversely in a compressed manner, wherein the tongue or web (4) is designed to be pivoted into the wire (12) and to contact the wire (12) at least on the wire longitudinal section (18) in a cut-in manner and/or in a pressed-in manner and to press the wire longitudinal section (18) against the compression support (7, 8) in the pivoted-in state,
wherein the contact element (1) is formed with a weakening of the sheet material in the region of the molded wire receptacle (3).
2. Contact element (1) according to claim 1,
it is characterized in that the method comprises the steps of,
the contact element has a through opening, wherein the contact bearing is formed by a through opening wall and the tongue or the web protrudes into the through opening in the pivoted-in state.
3. Contact element (1) according to claim 1 or 2,
it is characterized in that the method comprises the steps of,
the tongue or web (4) has at least two or only two mutually spaced raised regions (7, 8) which are formed on the tongue or web (4), are designed to contact the conductor (12) at two mutually different positions in the circumferential direction, and form the compression support (18).
4. Contact element (1) according to claim 1,
it is characterized in that the method comprises the steps of,
the tongue or web (4) has at least one cut (19) which is designed to remove a varnish layer of the wire (12) at least on the wire longitudinal section (18) and to contact the wire (12) there.
5. Contact element (1) according to claim 1,
it is characterized in that the method comprises the steps of,
the contact element (1) has a press-in contact (9) which is designed for plugging in a printed circuit board.
6. Contact element (1) according to claim 1,
it is characterized in that the method comprises the steps of,
the tongue or tab (4) has a toggle (21) configured to enhance pressure against the wire longitudinal section (18).
7. Contact element (1) according to claim 2,
it is characterized in that the method comprises the steps of,
the through opening (15) is rectangular or oval in shape.
8. Contact element (1) according to claim 1,
it is characterized in that the method comprises the steps of,
the contact element (1) is formed by a sheet material at least in the region of the wire receptacle (2, 3).
9. Contact element (1) according to claim 1,
it is characterized in that the method comprises the steps of,
the contact element (1) is formed by a stamped sheet metal part at least in the region of the wire receptacle (2, 3).
10. Contact element (1) according to claim 1,
it is characterized in that the method comprises the steps of,
the contact element (1) has at least one raised region (7, 8) which is arranged and embodied in the region of the contact bearing in order to contact the conductor section at least one circumferential section.
11. Contact element (1) according to claim 2,
it is characterized in that the method comprises the steps of,
the wire receiving part (2, 3) is formed by a ring, wherein the connecting piece (4) or the tongue piece is in the opening (15) when the connecting piece (4 ") is in the inserted state (4").
12. Method for contacting a wire longitudinal section (18) using a contact element (1) according to any of the preceding claims, wherein a wire (12) is guided through an eyelet (2, 3) of the contact element and, in order to make electrical contact with the wire longitudinal section (18), a connecting piece (4) shaped at the eyelet (2, 3) swings into the eyelet (2, 3) and presses the wire longitudinal section (18) towards a press support (7, 8), which is formed by an eyelet wall (3) of the eyelet (2, 3) and where the wire (12) is contacted.
13. The method according to claim 12,
it is characterized in that the method comprises the steps of,
the wire longitudinal section (18) is pressed against a press bearing (7, 8), which is formed by the bore wall (3) of the bore (2, 3) and which contacts the wire (12) in a cold-welded manner.
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 CN113169461A (en) | 2021-07-23 |
| CN113169461B true 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 (1)
| 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 |
Citations (3)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6908331B2 (en) * | 2002-09-27 | 2005-06-21 | Donald C. Brown | Insulation stripping connector for insulated wires |
-
2018
- 2018-12-03 DE DE102018220773.9A patent/DE102018220773A1/en active Pending
-
2019
- 2019-10-30 CN CN201980079613.XA patent/CN113169461B/en active Active
- 2019-10-30 WO PCT/EP2019/079679 patent/WO2020114685A1/en active Application Filing
Patent Citations (3)
| 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 |
| 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 |
|---|---|
| CN113169461A (en) | 2021-07-23 |
| DE102018220773A1 (en) | 2020-06-04 |
| WO2020114685A1 (en) | 2020-06-11 |
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