EP4445397A1 - Kontaktanordnung, elektrisches bauelement mit kontaktanordnung und elektrische vorrichtung - Google Patents
Kontaktanordnung, elektrisches bauelement mit kontaktanordnung und elektrische vorrichtungInfo
- Publication number
- EP4445397A1 EP4445397A1 EP22830826.8A EP22830826A EP4445397A1 EP 4445397 A1 EP4445397 A1 EP 4445397A1 EP 22830826 A EP22830826 A EP 22830826A EP 4445397 A1 EP4445397 A1 EP 4445397A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- section
- guide section
- contact arrangement
- electrical component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- 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
- H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
-
- 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
- H01R4/02—Soldered or welded connections
- H01R4/027—Soldered or welded connections comprising means for positioning or holding the parts to be soldered or welded
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
- H01G2/103—Sealings, e.g. for lead-in wires; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
- H01G2/106—Fixing the capacitor in a housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/236—Terminals leading through the housing, i.e. lead-through
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/40—Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
-
- 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
- H01R43/0263—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for positioning or holding parts during soldering or welding process
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
-
- 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
- H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
-
- 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
- H01R12/70—Coupling devices
- H01R12/7082—Coupling device supported only by cooperation with PCB
Definitions
- a contact arrangement, an electrical component with a contact arrangement and an electrical device are specified.
- At least one object of certain embodiments is to specify a contact arrangement for an electrical component. Further tasks of specific embodiments are to specify an electrical component with a contact arrangement and an electrical device.
- a contact arrangement has a first and a second contact element.
- an electrical component has such a contact arrangement.
- the contact arrangement is provided and set up for making electrical contact with the electrical component, ie for electrically connecting the electrical component to a further component.
- mechanical attachment of the electrical component can also be possible for mechanical attachment of the electrical component to be achieved via the contact arrangement.
- the electrical component can also have one or more contact arrangements, which can preferably be configured in the same way and via which the electrical component can be connected to one or more other electrical components.
- each of the contact elements has a guide section and at least one contact section.
- a contact element can be mechanically and electrically conductively connected to an external connection point, in particular an electrical connection point of a further component, via the at least one contact section.
- the at least one contact section of each of the contact elements can be arranged in particular outside of a housing of the electrical component.
- the at least one contact section of each of the contact elements can be connected to one or more further components of the electrical component via the guide section.
- the guide section of each of the contact elements can in particular be arranged at least partially outside of a housing of the electrical component.
- the first contact element has a first guide section and the second contact element has a second guide section.
- the first contact element has a first contact section.
- the second contact element particularly preferably has two second contact sections.
- the electrical component can have or be, for example, at least one capacitor and/or one filter element.
- the capacitor can be an intermediate circuit capacitor, also known as a DC link capacitor, which is based on film, aluminum or ceramic technology or hybrid technology, for example aluminum/film technology. based .
- the filter element can be, for example, an EMI filter or at least components of a filter.
- interference suppression components built into or attached to a busbar and other passive components are also possible.
- an electrical device has an electrical component with a contact arrangement.
- the electrical device can have a further electrical component to which the electrical component is electrically connected with the contact arrangement.
- the electrical device can have at least one electrical component and at least one further electrical component, the further electrical component having connection points which are mechanically and electrically connected to the first contact section and the second contact sections of the at least one contact arrangement of the electrical component.
- the at least one electric The component and the at least one further electrical component can be mounted on a common carrier such as a heat sink.
- the first and second contact elements are arranged one above the other in a vertical direction.
- this can mean that the first and second guide sections lie one above the other in the vertical direction and overlap. Looking at the contact arrangement along the vertical direction, one of the contact elements is thus arranged under the other contact element.
- one of the pair of guide portions is located below the other guide portion.
- one of the guide sections can at least partially or even completely cover the other guide section when looking at the contact arrangement along the vertical direction.
- the first contact section can particularly preferably follow the first guide section along a longitudinal direction that is perpendicular to the vertical direction.
- the first contact section can be connected directly to the first guide section.
- the spatial arrangement of the first guide section and the first contact section connected thereto can thus defining the longitudinal direction.
- the longitudinal direction can, for example, be perpendicular to a housing section of the housing of the electrical component, from which the contact arrangement protrudes.
- the two second contact sections are arranged alongside the first and second guide sections along a transverse direction that is perpendicular to the longitudinal direction and to the vertical direction.
- the two second contact sections can be arranged symmetrically next to the first and second guide sections.
- one of the two second contact portions is disposed on one side and the other of the two second contact portions is disposed on the other side of the second guide portion.
- the positions of the two second contact sections can match in a symmetrical arrangement.
- the second contact sections can preferably be connected directly to the second guide section.
- the second contact element can preferably have a smaller length than the first contact element in the longitudinal direction, with the length particularly preferably being measured from an outer surface of a housing section of a housing from which the contact arrangement protrudes. This can also mean that the first contact section is further away from said outer surface in the longitudinal direction than the two second contact sections.
- the first and second contact elements are connected by means of welding with electrical Connection points of a further component are electrically conductive and can be mechanically connected.
- each of the contact sections ie the first contact section and the second contact sections, each has a welding zone.
- this can also mean that the contact arrangement, ie the first and second contact element, is free of contact points for screw contacts.
- the welding can be laser welding.
- a welded connection i.e. a weld point
- areas of contact elements i.e. in particular welding zones, which are arranged in direct contact with connection points, are at least partially melted by means of a laser beam.
- the laser beam of the laser welding process which is generated for example by a solid-state laser or a gas laser, can preferably provide a concentrated heat source that allows narrow, deep welding points and a high welding rate.
- a high power density for example of the order of 1 MW/cm 2 , can be used, resulting in small heat affected zones and high heating and cooling rates.
- the spot size of the laser beam can be, for example, of the order of 100 ⁇ m or even smaller.
- the welding time can preferably be in the range of 0.1 seconds.
- the depth of penetration is typically proportional to the power and power density provided, but may also depend on the location of the focal point. Typically, penetration depth can be maximized when the focal point is slightly below the surface closest to the laser source.
- a continuous or pulsed laser beam can be used.
- the laser pulses can have a length in the order of milliseconds, for example.
- the laser welding process can be used to produce welds in the form of a punctiform, linear or particularly preferably crescent-shaped welded connection.
- the weld may have a shape resembling a C, a crescent, or a crescent moon.
- the weld may have the shape of an arc with an at least partially circular or elliptical shape.
- a weld can also be produced in the form of a double crescent, which is formed by two crescents gripping one another.
- the first and second contact sections can be designed in such a way that they not only have welding zones but also hold-down zones.
- a hold-down zone can in particular be an area via which a contact section can be pressed against the external connection point of a further component to be welded to the contact section by means of a suitable hold-down part or tool.
- the welding zone of the first contact section has a first surface area.
- the weld zones of the second contact sections together have a second surface area.
- the first and second area sizes are the same or at least essentially the same. This can mean in particular that the second area size deviates from the first area size by at most 30% or at most 20% or at most 10%.
- said deviation dF can in particular mean
- /F1 ⁇ dF with dF 0.3 or 0.2 or 0.1.
- the second contact sections together can also have a surface area f2 that is correspondingly equal or substantially equal to the surface area f1 of the first contact section, in that the following therefore applies:
- /fl ⁇ df with df 0.3 or 0.2 or 0.1.
- the first contact element is formed in a planar manner in a first plane.
- the second contact element can also be formed areally in a second plane parallel to the first plane.
- both contact elements can each be flat and arranged parallel to one another.
- the first guide section may also be possible for the first guide section to be flat in a first plane and the second guide section to be flat in a second plane parallel to the first plane, with the first contact section being flat in the second plane or the second contact sections being flat in the first level can be formed.
- one of the contact elements has at least one bead or embossing and thus at least has a step to the or the contact sections in the
- the first and second contact element can each have a metal sheet with one or more metals.
- the sheet metal can, for example, contain or be made of copper or a copper alloy.
- the first contact element can have a coating, at least in the first guide section and/or the second contact element in the second guide section, which can have, for example, one or more metals selected from tin, silver and gold.
- the contact sections of the contact elements can also partially have a coating, with the welding zones of the contact sections of the first and second contact elements particularly preferably each being free of coatings.
- the first guide section and/or the second guide section can have a folded metal sheet.
- Such a fold which can also be referred to as doubling, can advantageously increase the current-carrying capacity of a guide section.
- the first contact element can have a transition section between the first guide section and the first contact section, which connects the first guide section to the first contact section and has a lower current-carrying capacity than the first guide section and the first contact section.
- the transition section can, for example, have a smaller cross-sectional area in a sectional plane perpendicular to the longitudinal direction than each of the first guide section and the first contact section.
- an insulating element is arranged between the first guide section and the second guide section.
- the insulating element can be located between the first and second guide sections, in particular in the vertical direction. In other words, the first guide section, the insulating element and the second guide section can be arranged one above the other or below one another in the vertical direction in this order.
- the insulating element can particularly preferably be in direct mechanical contact with the first and second guide section.
- the insulating element can, for example, have or be formed from an electrically insulating plastic film, for example with or made of polyimide and/or polypropylene. In particular, the film can be flat.
- the insulating element can project beyond the first and second guide section on both sides in the transverse direction and thus be wider than the guide sections. Furthermore, the insulating element can project beyond the second contact element in the longitudinal direction and thus be longer than the second contact element.
- the insulating element can also be possible for the insulating element to be formed by a U-shaped plastic part, which is arranged between the first and second guide section and projects beyond the guide sections on both sides in the transverse direction and is located on both sides next to the first and/or second guide section extends in the vertical direction.
- the insulating element can be at the same height as the relevant element in the vertical direction End guide section or even tower over this in the vertical direction.
- the contact arrangement has an inductance of less than or equal to 5 nH. This can be achieved in particular in that the first and second contact element with the first and second guide section overlap and particularly preferably essentially only the contact sections do not overlap.
- Figures 1A to ID show a schematic representation of a contact arrangement of an electrical component according to an exemplary embodiment
- FIGS. 2A and 2B show schematic representations of a contact arrangement according to further exemplary embodiments
- FIGS. 3A to 3C show schematic representations of a contact arrangement of an electrical component according to a further exemplary embodiment
- Figures 4A and 4B show schematic representations of a contact arrangement of an electrical component according to a further exemplary embodiment
- FIGS. 6A to 6E show schematic representations of an electrical device according to a further exemplary embodiment.
- elements which are the same, of the same type or have the same effect can each be provided with the same reference symbols.
- the elements shown and their proportions to one another are not to be regarded as true to scale; rather, individual elements, such as layers, components, structural elements and areas, may be shown in an exaggerated size for better representation and/or better understanding.
- FIGS. 1A to ID show several views of an exemplary embodiment of a contact arrangement 1 of an electrical component 100 .
- the vertical direction 91 , the longitudinal direction 92 or the one transverse direction 93 are indicated in the figures.
- the electrical component 100 shown only partially in FIGS. 1A to ID can have or be, for example, at least one capacitor and/or one filter element.
- the capacitor can be an intermediate circuit capacitor based on film, aluminum or ceramic technology or a hybrid technology, for example aluminum/film technology.
- the filter element can be, for example, an EMI filter or at least components of a filter.
- interference suppression components built into or attached to a busbar and other passive components are also possible.
- the contact arrangement 1 is provided and set up for making electrical contact with the electrical component 100, ie for electrically connecting the electrical component 1 on another component.
- An example of such an electrical connection to a further electrical component is described below in connection with FIGS. 6A to 6E.
- the electrical component 100 can have one or more contact arrangements 1, which can preferably be of the same design and via which the electrical component 100 can be connected to one or more other electrical components .
- the contact arrangement 1 has a first contact element 10 and a second contact element 20 which protrude from a housing section of a housing 101 .
- FIG. 1A shows a view of the contact arrangement 1 from the vertical direction onto the first contact element 10
- FIG. 1B shows a view of the contact arrangement 1 from the opposite vertical direction onto the second contact element 20
- FIG. 1C shows a view of the contact arrangement 1 looking along the longitudinal direction of the housing
- FIG. ID shows a view of the contact arrangement 1 in the vertical direction. The following description relates equally to FIGS. 1A to ID.
- the first contact element 10 has a first guide section 11 and a first contact section 12 .
- the second contact element 20 has a second guide section 21 and two second contact sections 22 .
- the contact elements 10, 20 can be connected to an external connection point, in particular an electrical connection point of a further component, are mechanically and electrically conductively connected.
- the contact sections 12 , 22 of the contact elements 10 , 20 are particularly preferably arranged outside of the housing 101 of the electrical component 100 , as shown.
- the associated contact section(s) 12 , 22 of each of the contact elements 10 , 20 for example within the housing 101 , can be connected to one or more other components of the electrical component 100 via the respective guide section 11 , 21 .
- the guide section 11 , 21 of each of the contact elements 10 , 20 can particularly preferably be arranged at least partially outside the housing 101 of the electrical component 100 , as shown.
- the first and second contact elements 10 , 20 are arranged one above the other in the vertical direction 91 , so that in particular the first and second guide sections 11 , 21 lie one above the other in the vertical direction 91 and at least partially overlap. Particularly preferably, one of the guide sections 11 , 21 can completely cover the other. In the contact arrangement 1 shown, the first guide section 11 covers the second guide section 21 in the viewing direction of the contact arrangement shown in FIG. 1A
- the first contact section 12 follows the first guide section along the longitudinal direction 92
- first guide portion 11 is connected directly to the first guide section 11 in the contact arrangement 1 shown.
- a transition section between the first guide portion 11 and the first contact portion 12 may be present.
- the spatial arrangement of the first guide section 11 and the first contact section 12 connected thereto defines the longitudinal direction 92, which, as shown, can preferably be perpendicular to the housing section of the housing of the electrical component or its outer surface 102, from which the contact arrangement 1 protrudes.
- the two second contact sections 22 of the second contact element 20 are arranged alongside the first and second guide sections 11, 21 along the transverse direction 93, which is perpendicular to the longitudinal direction 92 and to the vertical direction 91, with the two second contact sections 22 particularly preferably being symmetrical as shown are arranged next to the first and second guide sections 11 , 21 .
- one of the two second contact sections 22 is arranged on one side and the other of the two second contact sections 22 is arranged on the other side of the second guide section 21 along the transverse direction 93, with the positions of the two second contact sections 22 match in the symmetrical arrangement shown.
- the second contact sections 22 can preferably be connected directly to the second guide section 21 .
- the second contact element 20 has a smaller length than the first contact element 10 in the longitudinal direction 92, starting from the outer surface 102 of the housing section of the housing 101 of the electrical component 100, so that the first contact section 11 in the longitudinal direction is farther from the outer surface 102 than the two second contact portions 22 .
- the contact arrangement 1 is intended and set up to be connected to a further component by means of welding. Accordingly, the contact arrangement 1 is free of screw connections or parts thereof.
- Each of the contact sections 12, 22 of the contact elements 10, 20 has a respective welding zone 13, 23 in which at least one welding point is produced as part of a welding process, as is described, for example, in connection with FIGS. 6A to 6E.
- the first and second contact sections 12, 22 not only have welding zones 13, 23, but also hold-down zones, i.e. areas over which a suitable hold-down part or tool is used to press the contact sections against the external connection point of another component to be welded to the contact sections can become .
- the hold-down zones can be provided in edge regions of the contact sections 12, 22, which surround the welding zones 13, 23.
- hold-down zones can also be provided, for example, within the marked welding zones 13 , 23 or, in the case of the second contact element 20 , in the transverse direction 93 between the welding zones 23 .
- the weld zone 13 of the first contact section 12 has a first area size F1, while the weld zones 23 of the second contact sections 22 together have a second area size F2.
- the first area size F1 and the second area size F2 are the same or at least essentially the same.
- the second area size F2 can deviate from the first area size F1 by at most 30% or at most 20% or at most 10%, as described above in the general part.
- the second contact sections 22 together have an area f2 that is correspondingly equal or substantially equal to the area fl of the first contact section 12 and thus by at most 30% or at most 20% or at most 10% of deviates from the first area size fl.
- the first contact element 10 is flat in a first plane
- the second contact element 20 is flat in a second plane parallel to the first plane, so that both contact elements 10, 20 are each flat and are arranged parallel to each other.
- the first and second contact element 10 , 20 can each have a metal sheet with one or more metals.
- the sheet metal can, for example, contain or be made of copper or a copper alloy.
- the first contact element 10 can have a coating (not shown) at least in the first guide section 11 and/or the second contact element 20 in the second guide section 21, which can have, for example, one or more metals selected from tin, silver and gold.
- the contact sections 12, 22 of the contact elements 10, 20 can also partially have a coating (not shown), with the welding zones 13, 23 of the contact sections 12, 22 of the first and second contact elements 10, 20 particularly preferably each being free of coatings .
- an insulating element 30 is arranged between the first guide section 11 and the second guide section 21 .
- the insulation element 30 can be located in particular in the vertical direction 91 between the first and second guide section 11 , 21 , so that the first guide section 11 , the insulation element 30 and the second guide section 21 are arranged one above the other or below one another in the vertical direction 91 in this order .
- the insulating element 30 is particularly preferably in direct mechanical contact with the first and second guide section 11, 21 and can, for example, have or be formed from an electrically insulating plastic film, for example with or made of polyimide and/or polypropylene.
- the film can in particular be flat and inserted between the contact elements 10 , 20 .
- the insulating element 30, as can be seen in FIGS. 1A and 1B, can project beyond the first and second guide section 11, 21 in the transverse direction 93 on both sides and thus be wider than the guide sections 11, 21.
- the insulating element 30 can protrude beyond the second contact element 20 in the longitudinal direction 92 and thus be longer than the second contact element 20, as can be seen in FIG.
- the first contact element 10 in turn is longer in the longitudinal direction 92 than the insulating element, with the first contact section 12 or at least the welding zone 13 of the first contact section 12 protruding in the longitudinal direction beyond the insulating element 30 .
- the contact elements 10, 20 in a specific embodiment in each case a copper sheet with a Have a thickness of about 1 mm in the vertical direction 91, which is provided with a coating, the welding zones 13, 23 being free of coatings on both sides and thus uncoated and each having bare copper surfaces on both sides.
- the welding zone 13 of the first contact section 12 can, for example, have a width of 20 mm to 28 mm in the transverse direction 93 and a length of 7 mm in the longitudinal direction 92, while each of the welding zones 23 of the second contact sections 22 each have a width of 10 mm and a length of 7 mm.
- the edge areas surrounding the welding zones 13 , 23 can each have a width of 1 mm, for example.
- the first contact element 10, calculated from the outer surface 102 of the housing 101, can have a length of approximately 29 mm, for example, while the second contact element 20 can have a corresponding length of approximately 13 mm.
- the structure shown makes it possible for the contact arrangement 1 to have an inductance of less than or equal to 5 nH and thus an apparent inductance which is considerably lower in comparison to conventional connecting lugs.
- FIGS. 2A and 2B Schematic representations of the contact arrangement 1 according to further exemplary embodiments are shown in FIGS. 2A and 2B, which form modifications of the contact arrangement 1 shown in FIGS. 1A to ID.
- the first guide section 11 is formed flat in a first plane and the second guide section 21 is formed flat in a second plane parallel to the first plane, while the first contact section 12 and the second contact sections 22 are each formed flat in the first plane, as shown in Figure 2A
- the first contact portion 12 and the second contact portions 22 are each formed areally in the second plane, as shown in Figure 2B.
- the corresponding contact element 10, 20 can have at least one bead or embossing and thus at least one step, as can be seen in Figures 2A and 2B, in order to bring the second contact sections 22 into the plane of the first contact element 10 or the first contact section 12 in the plane of the second contact element 20 .
- a further electrical component can be formed, for example, with connection points arranged in the same plane and thus have a plane contact zone, which can make production easier, for example.
- FIGS. 3A to 3C show schematic representations of the contact arrangement 1 according to a further exemplary embodiment.
- the first guide section 11 and the second guide section 21 each have a folded metal sheet.
- the folded guide sections 11 , 21 are produced, for example, in that in the area of the guide sections 11 , 21 the flat metal sheets used for production have twice the width of the later width of the guide sections 11 , 21 .
- the side edges become like this brought together so that they meet in the middle.
- the current-carrying capacity of the guide sections 11 , 21 can each be increased with advantage.
- the width of these along the transverse direction 93 can correspond to the width of the second contact section 22 .
- the first contact element 10 can have a transition section 14 between the first guide section 11 and the first contact section 12, which connects the first guide section 11 to the first contact section 12 and has a lower current-carrying capacity than the first guide section 11 and than the first contact section 12.
- the transition section 14 can have a smaller width in the transverse direction 93 and thus a smaller cross-sectional area in a sectional plane perpendicular to the longitudinal direction 92 than each of the first guide section 11 and the first contact section 12 .
- the transition section 14 has a very short length in the longitudinal direction 92 , it can be achieved that no disadvantageous heat development takes place in the transition section 14 .
- FIGS. 4A and 4B show schematic representations of the contact arrangement 1 according to a further exemplary embodiment, in which exemplary embodiments compared to the previous ones the insulating element 30 is formed by an IJ-shaped plastic part instead of a film.
- the U-shaped insulating element 30 can, for example, be made of polypropylene and, like the plastic film shown above, is arranged between the first and second guide sections 11, 21 and protrudes on both sides in the transverse direction 93 beyond the guide sections 11, 21. Furthermore, the insulating element 30 has side webs which extend in the vertical direction 91 on both sides next to the first guide section 11 .
- the insulating element 30 can end in the vertical direction 91 with the side bars at the same height as the first guide section 11 or, as can be seen in FIGS. 4A and 4B, project beyond it in the vertical direction 91.
- Such a U-shaped configuration of the insulating element 30 can in particular laterally on the contact elements 10, 20 considerably lengthen possible leakage current paths.
- FIGS. 5A to 5C Schematic representations of an electrical component 100 according to a further exemplary embodiment are shown in FIGS. 5A to 5C, which is designed, purely by way of example, as an intermediate circuit capacitor with three identically designed contact arrangements 1 arranged next to one another.
- the embodiment of the electrical component 100 shown in FIGS. 5A to 5C is not to be understood as limiting.
- the contact arrangements 1 can be configured as described above, with an embodiment according to FIGS. 4A and 4B being shown purely by way of example.
- FIG. 5A shows a view along the vertical direction onto the upper side of the electrical component 100
- FIG. 5B shows a three-dimensional view
- FIG. 5C shows a view along the vertical direction onto the underside of the electrical component 100 .
- One or more capacitors which are connected to the contact arrangements 1 can be present in the housing 101 .
- electrical connection lugs are present on the outer surface which is opposite the outer surface 102 from which the contact arrangements 1 protrude.
- the electrical component 100 can be fastened to a carrier such as a heat sink, for example, via eyelets present in the underside of the housing 101 .
- the contact arrangements 1 form, purely by way of example, an output side of the electrical component with, as described above, low-inductance and low-impedance electrical connections for further electrical components.
- an electrical device 1000 according to a further exemplary embodiment is shown, which has the electrical component 100 according to FIGS. 5A and 5B and further electrical components 200, which are arranged on a common carrier 300, in particular a heat sink are .
- Figures 6A and 6B show the electrical device 1000 in a three-dimensional view and in a sectional view, while the other electrical components 200 are shown without the electrical component 100 in Figure 6C.
- Welded connections are shown in FIGS. 6D and 6E.
- the electrical components 100, 200 shown are in terms of their Structure and its functionality are to be understood as purely exemplary and not restrictive.
- the additional electrical components 200 which are arranged on an intermediate carrier 202, can be, for example, semiconductor modules for generating alternating current from direct current, such as are used in electric vehicles, for example.
- a three-phase alternating current for operating electric motors can be generated with the electrical device 1000 .
- Each of the additional electrical components 200 has two electrical connection points 201 .
- the first contact section of the first contact element 10 of a contact arrangement 1 is arranged on one of the connection points 201 of each of the further electrical components 200 , while the second contact sections of the second contact element 20 are arranged on the respective other connection point 201 .
- the first contact element 10 and the second contact element 20 are electrically conductively and mechanically connected to the electrical connection points 201 in the welding zones by means of welding.
- FIG. 6D shows a preferred crescent-shaped weld point 19 and a likewise preferred weld point 19 in the form of a double crescent.
- FIG. 6E shows a photograph of a section through a weld point 19 produced by means of laser welding, the dashed horizontal line indicating the interface between the connection point 201 and the contact element 10 or 20 . Furthermore, the through the laser welding on the molten part forming the weld 14 is highlighted by a dashed line for better visibility.
- the shape of the welding point 19 and the welding depth can be easily adjusted by means of the laser welding method.
- a welding point can also be in the form of a point or line and/or another welding method can be used.
- the contact arrangement according to the exemplary embodiments described above uses weldable, superimposed contact elements used .
- these also replace very complex screw solutions.
- Such extremely low values for example, are also suitable for new so-called WBG materials (WBG: "wide band gap", large band gap), which allow extremely steep edges.
- the geometry of the contact arrangement described here is for DC link capacitors of different technologies (film/aluminium/ceramic or hybrid versions thereof) and also for other, for example passive, components such as DC link capacitors with integrated EMI filter or EMI components, EMI filter components, connection busbar, etc . usable .
- the laser welding method described is advantageously used in combination with the contact arrangement, since it only heats up the upper layers of the components a little and therefore does not damage them, and the penetration depth can be varied. In particular, no more space is required for a complex screw connection.
- the contact points are located directly on the component(s) and the space required for the hold-down tools for welding has already been taken into account.
- Laser welding can significantly reduce contact resistance and allow perfect contact points to be produced in fractions of a second. If necessary, multiple welds carried out in the same space generate maximum contact reliability for extremely high currents with significantly reduced heating and with the same contact area.
- the contact arrangement described permits an extremely cost-effective and optimized connection of electrical components of the most varied of types, in particular to novel, low-inductance semiconductor modules.
- the overlapping contact elements are preferably designed in such a way that they can transmit a wide range of power without overheating occurring.
- the contact arrangement can advantageously meet all mechanical and electrical requirements for the connections, in particular, for example, current carrying capacity, vibration resistance, tensile load capacity, low-inductance/low-impedance connection, low heating even at high currents, insulation resistance for both air and creepage distances and mechanical requirements regarding (co-)planarity, air gaps, additional depressions in the contact elements.
- the contact elements can in particular also be manufactured without a height-compensating press-in bead, which can reduce costs.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021132667.2A DE102021132667B3 (de) | 2021-12-10 | 2021-12-10 | Kontaktanordnung, elektrisches Bauelement mit Kontaktanordnung und elektrische Vorrichtung |
| PCT/EP2022/084754 WO2023104867A1 (de) | 2021-12-10 | 2022-12-07 | Kontaktanordnung, elektrisches bauelement mit kontaktanordnung und elektrische vorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4445397A1 true EP4445397A1 (de) | 2024-10-16 |
Family
ID=84688347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22830826.8A Pending EP4445397A1 (de) | 2021-12-10 | 2022-12-07 | Kontaktanordnung, elektrisches bauelement mit kontaktanordnung und elektrische vorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250047014A1 (de) |
| EP (1) | EP4445397A1 (de) |
| JP (1) | JP2024546248A (de) |
| CN (1) | CN118679539A (de) |
| DE (1) | DE102021132667B3 (de) |
| WO (1) | WO2023104867A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3865323D1 (de) | 1987-03-11 | 1991-11-14 | Siemens Ag | Steckfassung. |
| JP3724345B2 (ja) * | 2000-07-13 | 2005-12-07 | 日産自動車株式会社 | 配線の接続部構造 |
| US20110149472A1 (en) * | 2009-12-21 | 2011-06-23 | Nuintek Co., Ltd. | Method of connecting busbars with capacitor and product manufactured by the same method |
| JP5549491B2 (ja) * | 2010-09-06 | 2014-07-16 | 日立金属株式会社 | バスバーモジュールの製造方法、及びバスバーモジュール |
| JP5700022B2 (ja) * | 2012-10-29 | 2015-04-15 | 株式会社デンソー | 電力変換装置 |
| JP6746367B2 (ja) * | 2016-04-28 | 2020-08-26 | 株式会社Uacj | バスバー用アルミニウム合金板及びバスバーの製造方法 |
| CN118017170A (zh) * | 2017-10-05 | 2024-05-10 | 日本汽车能源株式会社 | 电池模块 |
| DE102018219218A1 (de) * | 2018-11-12 | 2020-05-14 | Audi Ag | Kondensatoranordnung |
| JP7295010B2 (ja) * | 2019-12-23 | 2023-06-20 | 豊田鉄工株式会社 | バスバー |
| CN111403174B (zh) * | 2020-03-25 | 2021-03-09 | 东风汽车集团有限公司 | 集成emc和泄放功能的薄膜电容及其电机控制器 |
| DE102020206364B4 (de) * | 2020-05-20 | 2024-10-10 | Vitesco Technologies Germany Gmbh | Kondensatoranordnung, Fahrzeugantriebs-Leistungselektronikvorrichtung mit einer Kondensatoranordnung |
-
2021
- 2021-12-10 DE DE102021132667.2A patent/DE102021132667B3/de active Active
-
2022
- 2022-12-07 WO PCT/EP2022/084754 patent/WO2023104867A1/de not_active Ceased
- 2022-12-07 CN CN202280091404.9A patent/CN118679539A/zh active Pending
- 2022-12-07 US US18/717,392 patent/US20250047014A1/en active Pending
- 2022-12-07 JP JP2024534205A patent/JP2024546248A/ja active Pending
- 2022-12-07 EP EP22830826.8A patent/EP4445397A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021132667B3 (de) | 2023-02-02 |
| CN118679539A (zh) | 2024-09-20 |
| WO2023104867A1 (de) | 2023-06-15 |
| US20250047014A1 (en) | 2025-02-06 |
| JP2024546248A (ja) | 2024-12-19 |
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