CN117280546A - Electrical connection device for at least one electrical conductor element and method for producing an electrical connection of an electrical connection device to at least one electrical conductor element - Google Patents
Electrical connection device for at least one electrical conductor element and method for producing an electrical connection of an electrical connection device to at least one electrical conductor element Download PDFInfo
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- CN117280546A CN117280546A CN202280033401.XA CN202280033401A CN117280546A CN 117280546 A CN117280546 A CN 117280546A CN 202280033401 A CN202280033401 A CN 202280033401A CN 117280546 A CN117280546 A CN 117280546A
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- 239000004020 conductor Substances 0.000 title claims abstract description 131
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 52
- 239000002041 carbon nanotube Substances 0.000 claims description 29
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 21
- 238000005520 cutting process Methods 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 description 18
- 238000000576 coating method Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000002788 crimping Methods 0.000 description 5
- 229910021389 graphene Inorganic materials 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012777 electrically insulating material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- 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
- H01R4/188—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 having an uneven wire-receiving surface to improve the contact
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- 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
- H01R4/58—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 characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
-
- 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
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention provides an electrical connection device (10) for at least one electrical conductor element (CNT), comprising: a fastening region (BB) which is designed for fastening to at least one electrical conductor element (CNT), wherein the fastening region (BB) has a bent and/or bendable surface with which the electrical conductor element (CNT) can be at least partially surrounded in the radial direction; a contact region (KB) which can be electrically connected to the electrical conductor element (CNT), wherein the contact region (KB) comprises at least one contact section (KS) which is shaped in such a way that it extends at least in sections in the axial extension direction of the electrical conductor element (CNT).
Description
Technical Field
The invention relates to an electrical connection device for at least one electrical conductor element and to a method for producing an electrical connection of an electrical connection device to at least one electrical conductor element.
Background
Carbon conductor windings based on Carbon Nanotubes (CNT) or graphene enable significant advantages to be achieved for motors compared to conventional motors (with copper windings), such as particularly high peak power density (> 25% relative to conventional motors), lower weight (down to 40%), generally lower losses, and smaller volumes due to higher gap filling coefficients. This can be attributed to the excellent properties of the carbon conductor, such as the potential for higher conductivity than for example in the case of copper, the conductivity which can be almost independent of temperature, for example a density 5 times less than copper, as well as the textile properties and high tensile strength (> 4 times than in the case of copper).
Here, the design of the connection technology (contact of the carbon conductor with the metal or another carbon conductor that can conduct electricity) can be particularly challenging.
An electrical conductor with an electrical interface is described in DE 10 2018 216 386 B3.
Disclosure of Invention
The invention provides an electrical connection device for at least one electrical conductor element according to claim 1, and a method for producing an electrical connection of an electrical connection device to at least one electrical conductor element, and a connection arrangement according to claim 9.
Preferred developments are the subject matter of the dependent claims.
The invention is based on the idea of specifying an electrical connection device for at least one electrical conductor element and a method for producing an electrical connection, wherein a (crimped) connection for the conductor element can be realized, which enables a further reduction of the ohmic contact resistance of the connection.
The conductor element can advantageously be a carbon conductor (e.g. graphene or carbon fibre nanotubes, abbreviated CNT).
According to the invention, an electrical connection device for at least one electrical conductor element comprises: a fastening region which is provided for fastening to at least one electrical conductor element, wherein the fastening region has a bent and/or bendable surface with which the electrical conductor element can be at least partially radially surrounded; and a contact region which can be electrically connected to the electrical conductor element, wherein the contact region comprises at least one contact section which is shaped in such a way as to extend at least in some regions in the axial extension direction of the electrical conductor element.
The conductor elements can be contacted or two or more conductor elements can be mechanically and electrically connected to each other by means of a connecting device. The folded and/or bendable surface can be bent around the conductor element and clamped thereto or can already be folded, wherein the conductor element can be inserted through the folded surface into the inner region of the surface, wherein the folded surface can then be partially or completely (radially) wrapped around the conductor element and can be fastened to the conductor element, for example, by changing the radius of the folded surface (clamping) or by fastening elements, such as clamps or the like. The fastening region can be formed from or comprise an electrically insulating material. The axial extension corresponds to the extension of the elongate shape of the conductor element, perpendicular to the radius of the conductor element.
The specific electrical conductivity of the carbon conductor can be lower in the radial direction than in the axial direction. Therefore, the ohmic contact resistance can also be correspondingly influenced when most of the contact is in radial direction, i.e. the ohmic contact resistance can be greater in the case of radial contact than in the case of axial contact.
The physical reason is that the carbon nanotubes are sp 2-hybridized in the axial direction over all atoms. Whereby the electron mobility is extremely high. Since carbon nanotubes are attached to each other only by van der waals forces and there is no material-fit connection between them, the electrical resistance between carbon nanotubes is much higher than in carbon nanotubes. The conductivity in the axial direction is 5-25MS/m depending on the CNT material (up to 50MS/m is expected in the future in the continued improvement of CNT materials). The electrical conductivity is correspondingly about 25% -50% of the value from the axial direction in the radial direction.
Based on the fact that the specific electrical conductivity of such carbon conductors can be significantly higher in the axial direction than in the radial direction, a crimped connection can be striven for according to the invention, which crimped connection enables an axial electrical contact.
Advantageously, the electrical connection device according to the invention can be used in electrical driving devices with high power density, because of the potential of carbon conductors (CNT/graphene) to contain low cost. Raw materials are available for a long time and are different from copper market prices.
According to the present invention, an improved axial contact of the carbon nanotubes can be achieved by means of a crimping process, whereby an improved conductivity can be achieved.
The improved contact allows the ohmic transition resistance of the contact points to be reduced and the operating mode of the motor to be improved.
The fastening region can comprise a sleeve which can be bent around the conductor element. It is possible to achieve a composite structure, preferably for carbon nanotubes, consisting of a joining element (fastening region) with a low ohmic contact-transition resistance to the contact element and an axial electrical contact to the conductor element, which has a high connection strength.
Thus, an improved electrical conductivity is generally achieved by an improved axial contact (to the carbon tube or conductor element) via the connecting element (crimping element).
The connecting element can be used in all electrical machines based on carbon conductors by means of an associated joining method. Further conceivable fields of application are transformers or electrical conductors in general, antenna technology for new mobile radio standards, electric motors in the form of hand-held applications, for example electric tools in electric aviation (in particular in air-assisted taxis) and/or in high-speed electric motors.
The fastening region and the contact region can form a so-called double crimp. The fastening region is used to ensure the connection strength, and the contact region makes electrical contact with the axial fiber ends.
According to a preferred embodiment of the electrical connection device, the fastening region and the contact region are formed as two separate metal elements or are integrally formed and/or are provided for connecting electrical conductor elements comprising carbon nanotube conductors.
Alternatively, the fastening region can also comprise an electrically insulating material. In this context, "connected" is understood to mean that a mechanical and/or electrical connection to other conductor elements or connections or holders can be achieved (mechanically). The fastening region and the contact region can advantageously be offset axially along the conductor element.
According to a preferred embodiment of the electrical connection device, the contact section comprises or is electrically connected to a contact surface which can be electrically conductively fastened at least in sections to an inclined cutting surface of the electrical conductor element, wherein the inclined cutting surface is located at the end of the electrical conductor element and extends at least in sections in the radial and axial direction of the electrical conductor element.
The contact surface can be placed and/or fastened on a cross-section, such as an end, of the conductor element or at a lateral, axial and/or radial contact area of the conductor element. In the case of an inclined cutting surface, the cutting surface can extend over the entire radial extent of the conductor element and around an axial partial region. Axial contact with the conductor element can then also be achieved along the cut surface. The inclined cross section can reduce contact resistance and improve connection strength.
An increased axial contact surface can be achieved by the inclined cross section.
The contact surface can comprise a metal surface that can rest against or rest at the cutting surface.
According to a preferred embodiment of the electrical connection device, the contact surface comprises an at least partially electroplated surface of the end of the electrical conductor element, and the contact section comprises at least one contact conductor which is connected or connectable to the contact surface in a region extending in the radial and/or axial direction of the electrical conductor element.
According to a preferred embodiment of the electrical connection device, the contact surface comprises silver, copper or an alloy capable of conducting electricity.
The electroplated coating (e.g. with silver/copper) of the preferably obliquely cut carbon conductor ends can improve the electrical contact on the cut surface and better fix the contact surface on the cut surface. Subsequent crimping can be achieved by electroplating the coating.
This solution also enables the use of a prefabricated carbon conductor semi-finished product with a prefabricated electroplated conductor end and enables the decoupling of the coating process from a simple engagement (clamping with a sleeve) in the production line.
The inclined cross section of the carbon conductor ends serves to enlarge the carbon tubes exposed in the axial direction. The plating coating serves to reduce the contact resistance between the connection element (crimp) and the carbon conductor.
In general, the obliquely cut fiber ends can be galvanically coated (preferably with the aid of metallic materials having good electrical conductivity, such as, for example, silver, copper or alloys) and in a second step crimped with the contact region in the radial direction by means of the coating into contact segments. In this way, conventional crimping can also be used, but at the same time the current is conducted through the galvanic coating into the obliquely cut fiber ends.
According to a preferred embodiment of the electrical connection device, the contact section comprises one or more spindle elements which extend from the folded and/or bendable surface at least in sections in the direction of the radius center of the curvature of the folded and/or bendable surface and in a direction perpendicular to this direction of the radius center.
The mandrel (crimp) element can be used to better axially contact the carbon tube. The mandrel element can extend in part in the radial direction of the conductor element in order to mechanically better fix the conductor element and also in order to electrically contact the conductor element in the radial direction, and in the direction of the course of the mandrel element also in the axial direction (direction perpendicular to the center of radius) along the conductor element in order to enable improved axial contact.
According to a preferred embodiment of the electrical connection device, the contact section comprises a first mandrel element and at least one second mandrel element, which follow each other in a direction perpendicular to the direction towards the center of the radius.
In the case of more than one mandrel element, the axial partial section through which contact can be made can be increased.
The mandrel crimp can thus be used to improve the conductivity. The mandrel in turn causes axial electrical contact to the graphene or carbon tube and improved electrical functionality. The mandrel can be designed here with or without a cutting section.
According to a preferred embodiment of the electrical connection device, the mandrel element or the first mandrel element and/or the at least one second mandrel element form a triangle in a projection which projects in the direction of the radius center of curvature and in a plane perpendicular to such direction towards the radius center.
The triangular shape simplifies the stamping and outward bending from the sleeve, preferably the fastening area. After this, the conductor element can advantageously be easily inserted and the mandrel element can be pushed into the conductor both radially and axially.
According to the invention, in a method for producing an electrical connection of an electrical connection device to at least one electrical conductor element, a fastening region is provided, which is designed for fastening to the at least one electrical conductor element, wherein the fastening region has a bent and/or bendable surface with which the electrical conductor element is at least partially radially or circumferentially encircling; and providing a contact region which is electrically or electrically connectable to the electrical conductor element, wherein the contact region comprises at least one contact section which is designed to extend at least in some regions along the axial extension of the electrical conductor element.
According to a preferred embodiment of the method, an oblique cutting surface is produced at the electrical conductor element and the contact surface is fixed or produced at least in sections on the oblique cutting surface in an electrically conductive manner and is electrically connected to the contact section or is formed as part of the contact section, wherein the oblique cutting surface is located at the end of the electrical conductor element and extends at least in sections in the radial direction and in the axial direction of the electrical conductor element.
In this case, the contact is achieved, for example, by obliquely cut CNT fiber ends. In this way, axial electrical contact can be achieved despite radial compression by crimping.
According to a preferred embodiment of the method, the contact surface is formed as an at least partially electroplated surface of the end portion of the electrical conductor element.
According to a preferred embodiment of the method, the contact region is formed in such a way that at least one mandrel element is punched out of the folded and/or bendable surface locally by a punching process and is bent outwards in such a way that the at least one mandrel element extends locally in the direction of the radius center of the curvature of the folded and/or bendable surface and in a direction perpendicular to this direction towards the radius center and is mechanically connected to the folded and/or bendable surface at one or more connection regions.
The electrical connection means can also be distinguished by the features mentioned in connection with the method and by the advantages thereof and vice versa.
The invention further relates to a connection arrangement comprising the described electrical connection device and an electrical conductor element, in particular a carbon nanotube conductor, wherein the connection arrangement is preferably produced by means of the described method.
Additional features and advantages of embodiments of the invention will be made apparent from the following description of the invention which refers to the accompanying drawings.
Drawings
The invention is explained in more detail below on the basis of embodiments specified in the schematic drawing of the figures.
Wherein:
fig. 1 shows a schematic view of an electrical connection device with a conductor element according to an embodiment of the invention;
FIG. 2 shows a schematic view of an electrical connection device according to one embodiment of the invention;
fig. 3 shows a block diagram of method steps of a method for manufacturing an electrical connection device for at least one electrical conductor element according to an embodiment of the invention; and is also provided with
Fig. 4 shows a stamping method for a method for producing an electrical connection device for at least one electrical conductor element according to an embodiment of the invention.
Detailed Description
In the drawings, like reference numbers indicate identical or functionally identical elements.
Fig. 1 shows a schematic view of an electrical connection device with a conductor element according to an embodiment of the invention.
The electrical connection device for at least one electrical conductor element CNT comprises a fastening region BB which is designed for fastening to the at least one electrical conductor element CNT, wherein the fastening region BB has a bent and/or bendable surface with which the electrical conductor element CNT can be at least partially radially surrounded and can be deformed, for example, by means of a force F for fastening the electrical conductor element CNT.
The connection device further comprises a contact region KB which can be electrically connected to the electrical conductor element CNT, wherein the contact region KB comprises at least one contact section KS which is shaped so as to extend at least in some regions in the axial extension direction of the electrical conductor element CNT. The fastening region BB and the contact region KB can be formed integrally (or individually) here, which establish electrical conductor elements CNT for connecting the carbon nanotube conductors. The contact section (KS) can comprise or be electrically connected to a contact surface KF, which can be fixed in an electrically conductive manner at least in sections to an inclined cutting surface SF of the electrical conductor element CNT, wherein the inclined cutting surface SF is located at the end of the electrical conductor element CNT and extends at least in sections in the radial and axial direction of the electrical conductor element CNT. The contact surface KF can comprise an at least partially electroplated surface of the end of the electrical conductor element CNT, and the contact section KS comprises at least one contact conductor KL, which is connected or connectable to the contact surface KF and the contact region KB in a region extending in the radial and/or axial direction of the electrical conductor element. The contact surface KF can comprise silver, copper or an alloy that can conduct electricity.
Fig. 2 shows a schematic view of an electrical connection device according to an embodiment of the invention.
The electrical connection device 10 can comprise a contact section KS which can comprise one or more mandrel elements (DE 1, DE 2) which can extend from the bent and/or bendable face of the fastening region BB at least in regions in the direction of the radius center of curvature of the bent and/or bendable face and in a direction perpendicular to this direction of the radius center. The contact section KS can comprise a first core shaft element DE1 and at least one second core shaft element DE2, which follow one another in a direction perpendicular to the direction toward the center of the radius (along the conductor element in the axial direction). Furthermore, the first core element DE1 and/or the at least one second core element DE2 can form a triangle in a projection which projects in the direction of the radius center of the curvature and in a plane perpendicular to such direction towards the radius center.
According to fig. 2, the first spindle element DE1 can be opened to the left in the mentioned planar projection, and the second spindle element DE2 can be opened to the right in the mentioned planar projection, and vice versa. The triangular projections of the two core elements can then be oriented in different directions, wherein the tips of the two core elements can nevertheless lie on a straight line along the axis of the conductor element and/or the fastening region BB, or respectively be slightly spaced apart therefrom, the axial projections of the two core elements can nevertheless run parallel to or along this straight line. By the mandrel element of fig. 2, optimization of the CNT-crimp connection can be achieved in terms of improved conductor snap-off force and reduced ohmic contact resistance (by improving electrical contact of the CNT-/graphene bundles). The mandrel elements can each be inserted into the inserted fiber bundle of the conductor element and can contact as many filaments as possible of the individual filaments.
Fig. 3 shows a block diagram of method steps of a method for producing an electrical connection device for at least one electrical conductor element according to an embodiment of the invention.
In the method, an S1 fastening region is provided, which is designed for fastening to at least one electrical conductor element, wherein the fastening region has a bent and/or bendable surface with which the electrical conductor element can be at least partially radially surrounded; and providing S2 a contact region, which can be electrically connected to the electrical conductor element, wherein the contact region comprises at least one contact section, which is designed to extend at least in some regions along the axial extension of the electrical conductor element.
Fig. 4 shows a stamping method for a method for producing an electrical connection device for at least one electrical conductor element according to an embodiment of the invention.
According to the structure of fig. 4, the mandrel element of the contact element is advantageously manufactured, for example, by means of a wire-cut matrix M and a wire-cut matrix ST. When the sleeve of the fastening region is located on the semicircular base BL, the force F can be used to press the punch ST onto the die M. The sleeve and punch are oriented and fixed relative to each other in a standard extruder and the triangular mandrel is cut during the compression stroke into a suitable standard crimp (fastening zone) V-shaped bent wire crimp sleeve. By placing the crimp sleeve in the cutting tool with a twist of 180 °, the second mandrel element (DE 2 in fig. 2) can be arranged offset and bent upward to such an extent as desired. The number of mandrels used can vary from 1 to n as desired.
Although the present invention has been fully described hereinabove according to the preferred embodiments, the present invention is not limited thereto but can be modified in various ways.
Claims (14)
1. Electrical connection device (10) for at least one electrical conductor element (CNT), comprising:
-a fastening region (BB) which is set up for fastening to at least one electrical conductor element (CNT), wherein the fastening region (BB) has a bent and/or bendable face with which the electrical conductor element (CNT) can be at least partially radially surrounded;
-a contact region (KB) which can be electrically connected to the electrical conductor element (CNT), wherein the contact region (KB) comprises at least one contact section (KS) which is shaped so as to extend at least partially along the axial extension of the electrical conductor element (CNT).
2. The electrical connection device (10) according to claim 1, wherein the fastening region (BB) and the contact region (KB) are formed as two separate metal elements or integrally formed and/or they are set up for connecting electrical conductor elements (CNT) comprising carbon nanotube conductors.
3. The electrical connection device (10) according to claim 1 or 2, wherein the contact section (KS) comprises or is electrically connected to a contact surface (KF) which is electrically conductively at least locally fixable to an inclined cutting Surface (SF) of the electrical conductor element (CNT), wherein the inclined cutting Surface (SF) is located at an end of the electrical conductor element (CNT) and extends at least locally in a radial direction and in an axial direction of the electrical conductor element (CNT).
4. An electrical connection device (10) according to claim 3, wherein the contact surface (KF) comprises an at least partially electroplated surface of the end of the electrical conductor element (CNT), and the contact section (KS) comprises at least one contact conductor (KL) which is connected or connectable with the contact surface (KF) in a region extending in the radial and/or axial direction of the electrical conductor element.
5. The electrical connection device (10) according to claim 3 or 4, wherein the contact surface (KF) comprises silver, copper or an alloy capable of conducting electricity.
6. Electrical connection device (10) according to claim 1 or 2, wherein the contact section (KS) comprises one or more spindle elements (DE) extending from the folded and/or bendable face at least partially in the direction of the radius center of curvature of the folded and/or bendable face and in a direction perpendicular to such direction of the radius center.
7. The electrical connection device (10) according to claim 6, wherein the contact section (KS) comprises a first core shaft element (DE 1) and at least one second core shaft element (DE 2) which follow each other in a direction perpendicular to the direction towards the center of radius.
8. The electrical connection device (10) according to claim 6 or 7, wherein the mandrel element (DE) or the first mandrel element (DE 1) and/or the at least one second mandrel element (DE 2) form a triangle in a projection which projects in the direction of the radius center of curvature and in a plane of a direction perpendicular to the direction towards the radius center.
9. Method for manufacturing an electrical connection of an electrical connection device (10) with at least one electrical conductor element (CNT), the method comprising the steps of:
-providing (S1) a fastening region (BB) which is designed for fastening at least one electrical conductor element (CNT), wherein the fastening region (BB) has a bent and/or bendable face with which the electrical conductor element (CNT) can be at least partially radially or circumferentially surrounded;
-providing (S2) a contact region (KB) which is electrically or electrically connectable with the electrical conductor element (CNT), wherein the contact region (KB) comprises at least one contact section (KS) which is designed to extend at least partially along the axial extension of the electrical conductor element (CNT).
10. Method according to claim 9, wherein an inclined cutting plane (SF) is produced at the electrical conductor element (CNT) and a contact plane (KF) is fixed or manufactured at least locally on the inclined cutting plane (SF) in an electrically conductive manner and is electrically connected to the contact section (KS) or is shaped as a part of the contact section (KS), wherein the inclined cutting plane (SF) is located at an end of the electrical conductor element (CNT) and extends at least locally in a radial direction and in an axial direction of the electrical conductor element (CNT).
11. The method according to claim 10, wherein the contact face (KF) is shaped as an at least partially electroplated face of the end of the electrical conductor element (CNT).
12. Method according to claim 9, wherein the contact region (KB) is formed such that at least one mandrel element (DE) is punched out of the folded and/or bendable face locally by a punching process and bent outwards such that the at least one mandrel element (DE) extends locally in the direction of the radius center of curvature of the folded and/or bendable face and in a direction perpendicular to such direction towards the radius center and remains mechanically connected to the folded and/or bendable face at one or more connection regions.
13. Connection arrangement comprising an electrical connection device (10) according to any one of claims 1 to 8 and an electrical conductor element (CNT), in particular a carbon nanotube conductor.
14. The connection arrangement according to claim 13 manufactured according to the method of any one of claims 9 to 12.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021204637.1A DE102021204637A1 (en) | 2021-05-07 | 2021-05-07 | Electrical connection device for at least one electrical conductor element and method for establishing an electrical connection of an electrical connection device with at least one electrical conductor element |
| DE102021204637.1 | 2021-05-07 | ||
| PCT/EP2022/060348 WO2022233572A1 (en) | 2021-05-07 | 2022-04-20 | Electrical connection device for at least one electrical conductor element and method for producing an electrical connection of an electrical connection device to at least one electrical conductor element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117280546A true CN117280546A (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280033401.XA Pending CN117280546A (en) | 2021-05-07 | 2022-04-20 | Electrical connection device for at least one electrical conductor element and method for producing an electrical connection of an electrical connection device to at least one electrical conductor element |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4335003A1 (en) |
| CN (1) | CN117280546A (en) |
| DE (1) | DE102021204637A1 (en) |
| WO (1) | WO2022233572A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07263037A (en) * | 1994-03-18 | 1995-10-13 | Nichifu Co Ltd | Connecting structure for linear heating element |
| US9070992B2 (en) * | 2012-02-16 | 2015-06-30 | Tyco Electronics Corporation | Termination of carbon nanotube macrostructures |
| JP5947576B2 (en) * | 2012-03-16 | 2016-07-06 | 矢崎総業株式会社 | Electric wire with crimp terminal |
| AT516375B1 (en) * | 2014-12-04 | 2016-05-15 | Gebauer & Griller | Cable contact system and method for electrically connecting a cable to a contact piece |
| DE102018216386B3 (en) | 2018-09-26 | 2020-03-12 | Robert Bosch Gmbh | Electrical conductor and electrical interface |
-
2021
- 2021-05-07 DE DE102021204637.1A patent/DE102021204637A1/en active Pending
-
2022
- 2022-04-20 CN CN202280033401.XA patent/CN117280546A/en active Pending
- 2022-04-20 EP EP22723629.6A patent/EP4335003A1/en active Pending
- 2022-04-20 WO PCT/EP2022/060348 patent/WO2022233572A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022233572A1 (en) | 2022-11-10 |
| DE102021204637A1 (en) | 2022-11-10 |
| EP4335003A1 (en) | 2024-03-13 |
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