EP3109951A1 - Electrical component, connection unit with at least one electrical component, vehicle using the same, and method for producing an electrical component - Google Patents

Electrical component, connection unit with at least one electrical component, vehicle using the same, and method for producing an electrical component Download PDF

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Publication number
EP3109951A1
EP3109951A1 EP16174232.5A EP16174232A EP3109951A1 EP 3109951 A1 EP3109951 A1 EP 3109951A1 EP 16174232 A EP16174232 A EP 16174232A EP 3109951 A1 EP3109951 A1 EP 3109951A1
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EP
European Patent Office
Prior art keywords
electrical
electrically conductive
unit
contact springs
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16174232.5A
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German (de)
French (fr)
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EP3109951B1 (en
Inventor
Karsten RUNGE
Andreas Teichmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF CV Systems Hannover GmbH
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Wabco GmbH
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Application filed by Wabco GmbH filed Critical Wabco GmbH
Publication of EP3109951A1 publication Critical patent/EP3109951A1/en
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Publication of EP3109951B1 publication Critical patent/EP3109951B1/en
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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the invention relates to an electrical unit with at least two electrical components, in particular sensors and / or actuators, according to the preamble of claim 1, a connection unit with at least one electrical unit and at least one further electrical unit, a vehicle, in particular a commercial vehicle, and a method for Production of an electrical unit according to the preamble of claim 14.
  • DE 10 2007 052 697 A1 shows a solenoid valve unit for an electropneumatic control, which is particularly useful in a pressure modulator of a commercial vehicle.
  • the magnetic coils and the pressure sensor are contacted via a common leadframe and led individual leads or lines to an electrical interface.
  • An electrically conductive plug connection with an electronic control unit can then be produced via the electrical interface.
  • the production of a plug connection is complicated and expensive in the production of electrical units, such as control units.
  • DE 10 2012 014 407 A1 shows an apparatus for detecting and processing sensor readings and / or for controlling actuators.
  • the sensors and / or actuators are arranged in a base housing and an electronic control unit in a cover, wherein the cover is coverable connected to the base housing.
  • the sensors and / or actuators have electrically conductive contact springs, which are in contact with contact surfaces on a printed circuit board of the control electronics.
  • connection requires at least two contact springs for each sensor and / or actuator and is therefore correspondingly expensive.
  • the invention is based on the object to provide a simple and cost-effective electrical connection with which at least two electrical components of an electrical unit can be electrically connected to a further electrical unit.
  • the invention solves this object with an electrical unit with the features according to claim 1, with a connection unit with the features according to claim 11, with a vehicle with the features according to claim 13 and with a method for producing an electrical unit with the features according to claim 14 ,
  • the electrical assembly according to the invention in particular solenoid valve unit, has at least two electrical components, in particular sensors and / or actuators, and at least three electrically conductive connection contacts.
  • the electrical assembly can be connected to a further electrical unit. This may for example be a connection between a solenoid valve unit and an electrical control unit.
  • the actuators are preferably designed such that they can control and regulate fluid flows, such as solenoid valves.
  • servomotors, electromagnets or the like come as actuators into consideration.
  • the electrically conductive connection contacts are electrically conductively connected to the at least two electrical components via a line grid, also called a leadframe.
  • the electrically conductive connection contacts of the electrical assembly are designed as electrically conductive contact springs.
  • the spring force of the contact springs advantageously results in a reliable electrical contact.
  • the line grid common electrical lines of the at least two electrical components are combined in an electrically conductive manner.
  • the combined electrical line is preferably a ground line (GND line) or a zero-volt potential line of the electrical components or another line always at the same potential.
  • This common line of the line grid has a common electrically conductive contact spring as an electrically conductive connection contact for an electrically conductive connection with a further electrical unit. This advantageously reduces the number of contact springs used and thus saves space and costs compared to a conventional conductive connection between an electrical unit and a further electrical unit according to the prior art.
  • the common line of the line grid can also be connected via more than one electrically conductive contact spring with another electrical unit. This is particularly advantageous if a larger current flows in the common line than in the other lines of the line grid. In order to reliably transmit this larger current, more than one contact spring may be advantageous.
  • the line grid or leadframe on electrically conductive pads which are designed so as to form an electrically conductive connection with the electrical components.
  • a connecting wire of the electrical component for example, a coil wire of the solenoid valve, placed between two pads and the pads connected to each other, in particular soldered or welded.
  • the connection between the wire grid and the electrical component is advantageously particularly resistant to vibration, which increases the service life of the electrical connection.
  • the contact springs are arranged in an insulating part.
  • the insulating part is preferably integrally formed, in particular as a plastic injection molded part, and serves as a holder for the contact springs. This advantageously simplifies the Assembly of the contact springs, as they are only inserted into the insulation part.
  • a development of the invention provides that the insulating part is fastened by means of fastening means on the line grid or leadframe.
  • the attachment advantageously ensures a persistently accurate positioning of the contact springs, which are arranged in the insulating part, so that via the contact springs, a reliable conductive connection can be made with the wire grid.
  • the fastening means are arranged in the immediate vicinity of the contact springs in order to absorb the compressive forces exerted by the contact springs on the wire grid and to advantageously avoid a deflection of the wire grid.
  • the fastening means for fixing the insulating part on the wire grid or leadframe are sawtooth-shaped.
  • the associated recess in the insulating part is also sawtooth-shaped.
  • the fastening means are preferably part of the line grid to be connected to the insulating part and are punched out with the line structure during the production process of the line grid.
  • these fastening means are bent up so that they are substantially perpendicular to the line structure. This has the advantage that no separate connecting parts are required for fastening the leadframe to the insulating part.
  • the insulating part has a spring receptacle formed as an open receptacle at two opposite ends, wherein this spring receptacle has at least one spring receptacle Has cross-sectional taper. This cross-sectional taper protrudes into the spring receptacle in such a way that it forms a projection on which a contact spring can be supported.
  • the contact spring is designed such that the contact spring is adapted to the shape of the spring receptacle.
  • the contact spring has different diameters, wherein the contact spring end directed towards the conductor track or leadframe has a larger cross-section than the contact spring end serving to connect a further unit.
  • the contact spring is held by the projection within the spring retainer such that the contact spring can not fall out, if the electrical unit does not make electrical connection with another unit, i. is in the unmounted state.
  • the insulation part has at least one support projection, which is designed in such a way as to crash the insulation part against the electrical components.
  • the forces acting on the insulating part by the contact springs are dissipated via the supporting projection. There is a lower deflection of the insulating part, whereby the contact springs are advantageously hardly excitable to adverse vibrations.
  • the insulating part covers the line grid or leadframe, so that the line grid is integrated in the insulating part.
  • the line structures of the line grid similar to an encapsulation, insulated from the environment and thus the line grid advantageously has a higher stability.
  • the contact springs are mechanically fixed by means of a spring holder on the wire grid.
  • a spring holder on the wire grid.
  • the wire grid has a through hole for contacting the wire grid with the contact spring.
  • the spring holder is already part of the encapsulation of the line grid.
  • connection unit in particular mechatronics unit, with at least one electrical unit and at least one further electrical unit.
  • the electrical unit is preferably a solenoid valve unit and the further electrical unit is an electrical control unit.
  • the connection unit according to the invention is also formed by a simple connection between the solenoid valve unit and a plug as another electrical unit, as is the case for example in simple ABS solenoid valves in a vehicle brake system.
  • connection unit in particular the contacting of the electrical components, in particular sensors and / or actuators, advantageously takes place simultaneously by placing the further electrical unit.
  • the further electrical unit has contact surfaces, which are designed in such a way as to communicate with the electrically conductive contact springs of the electrical unit to make electrically conductive connection.
  • the contact surfaces can be arranged directly on a circuit board or on a SMD component (Surface Mounted Device) formed contact plate.
  • the contact plate is preferably made thicker than the conductor tracks arranged on the board, in order to obtain the electrical contact capability in the event of possible abrasion by the seated contact spring.
  • the contact plates can also be constructed in multiple layers, in particular have a silver or gold layer.
  • the o.g. The object is also achieved by means of a vehicle, in particular a commercial vehicle, wherein the vehicle has at least one electrical unit described above and / or at least one o.g. Having connection unit.
  • the o.g. Task by means of a method for producing an electrical assembly, in particular solenoid valve unit, with at least two electrical components, in particular sensors and / or actuators, and at least three electrically conductive connection contacts solved, wherein the electrical assembly is electrically conductively connected by means of the connection contacts with another electrical unit ,
  • the electrically conductive connection contacts are electrically conductively connected via a line grid or leadframe to the at least two electrical components and designed as electrically conductive contact springs.
  • common electrical lines of the at least two electrical components are combined in an electrically conductive manner by means of the conductor grid and electrically conductively connected to an electrically conductive contact spring.
  • the merging of the common lines is generated via a suitable line structure or line layout of the line grid and is particularly easy to produce, since the line grid is punched or laser cut.
  • the contact springs can be arranged arbitrarily, regardless of the electrical connections of the electrical components.
  • the contact springs are preferably spatially spaced and arranged against each other electrically isolated and adapted in their arrangement of the connected further electrical unit.
  • connection via electrically conductive contact springs also has the advantage that the electrical connection of the electrical unit with the other unit even with strong vibrations, such as those that occur in vehicles, works reliably.
  • the contact springs advantageously allow a tolerance compensation of manufacturing tolerances of the individual components and a compensation of thermal expansion.
  • n electrical components in particular sensors and / or actuators
  • 2 * n contact springs are necessary in order to produce an electrically conductive connection with a further unit.
  • the structural unit according to the invention requires only n + 1 contact springs, which advantageously reduces costs and assembly costs compared to the prior art.
  • Fig. 1 shows a schematic representation of a plan view of a designed as a solenoid valve unit electrical assembly 2 with three solenoid valves not shown as electrical components.
  • the electrically conductive connection contacts are formed as electrically conductive contact springs 4, 6, 8, 10 and arranged spatially spaced from one another on a wire grid or leadframe 12 so as to be electrically conductive therewith.
  • the line grid 12 has, for each electrical component, two connection surfaces 14, on which the contact wires of the electrical components, in this case solenoid valves, are fastened in an electrically non-illustrated manner, in particular by means of arc welding.
  • the line grid 12 has a line structure that is adapted to the spatial extent of the electrical components, and the pads 14 positioned in the immediate vicinity of the contact wires of the electrical components.
  • portions of the conductor grid 12 are preferably bent in such a way that these portions extend substantially perpendicular to the conductor structure of the conductor grid 12.
  • the invention provides that by means of the line structure of the line grid 12 common lines of the electrical components are combined to form a line.
  • the ground lines of the solenoid valves are combined to form a common ground line 16 on the line grid 12.
  • the common line 16 is electrically conductively connected to the solenoid valves via three connection surfaces 14 and has a common contact spring 4 as an electrically conductive connection contact.
  • the other contact springs 6, 8, 10 are each electrically conductive with one of the electrical components, in particular Solenoid valves, each connected by a pad 14 and form the positive pole of the applied supply voltage.
  • the common line 16 may also have more than one electrically conductive contact spring as electrically conductive connection contacts, which is not shown here.
  • a connection via more than one electrically conductive contact spring is particularly advantageous if a larger current flows on the common line 16 than on the other lines of the line grid 12.
  • the line grid 12 is preferably punched out of a sheet or laser cut, wherein the individual lines are all initially connected. If the line grid 12 installed so far that it is mechanically fixed, the individual lines are severed according to the desired line structure. The severing of such shorting bridges is in Fig. 1 shown in dashed line as line separation 17.
  • the contact springs 4, 6, 8, 10 are arranged in an insulating member 18, wherein the insulating member 18 with a dashed line in Fig. 1 is shown.
  • FIG. 1 shown line grid 12 almost completely covered by the insulating member 18 and thus protected from environmental influences.
  • the line grid 12 is fastened by means of suitable fastening means 20 to the insulating member 18, wherein the fastening means 20 are preferably formed like a sawtooth and are pressed as bent portions of the conductor grid 12 in recesses provided for this purpose in the insulating member 18.
  • the contact springs 4, 6, 8, 10 in the unmounted state of the electrical assembly 2 i. If the electrical unit 2 does not receive electrical connection to another unit, do not fall out of the insulating member 18, the insulation member 18 for each contact spring 4, 6, 8, 10 a spring receiving a cross-sectional taper, wherein the cross-sectional taper projecting into the spring receiving Projection 22 forms, on which the contact spring 4, 6, 8, 10 is supported.
  • Fig. 2 shows a schematic representation of a sectional view by way of example by a contact spring 4, which is inserted in a spring receptacle 24 of the insulating member 18.
  • the contact spring 4 is conical or cylindrical and mechanically biased installed.
  • the contact spring 4 is further dimensioned in its length and spring constant such that the contact spring 4 can press in the installed state with sufficiently large pressure against an opposite contact surface 26 to ensure the smallest possible and constant electrical contact resistance and thus advantageously for a high contact reliability to care.
  • the contact spring 4 has sections with different diameters.
  • the contact spring 4 preferably has a larger diameter at the contact spring end facing the line grid 12 than at the other contact spring end. This larger diameter is adapted to the shape of the spring receptacle 24 of the insulating member 18 such that the contact spring 4 is supported with the larger diameter of the projection 22 within the spring receptacle 24. With the projection 22 and a suitable dimensioning of the lengths and spring constants of the individual sections of the contact spring 4, a different preferred pressure force can be generated in each case for both contact spring ends.
  • the sawtooth-shaped fastening means 20 are pressed into corresponding recesses of the insulating part 18, wherein the fastening means 20 are preferably arranged in close proximity to the contact spring 4 in order to avoid a deflection of the line grid 12.
  • the line grid 12 has electrically conductive pads 14 for contacting the electrical components of the electrical unit 2.
  • the electric coils of the solenoid valves with the lead frame 12th electrically contacted via the connection surfaces 14.
  • the contact surface 26 has a quadrangular, circular, elliptical or oval peripheral geometry or a combination of said circumferential geometries.
  • the contact surface 26 projects beyond the diameter of the contact spring 4.
  • the contact surface 26 may have a recess for receiving the contact spring 4.
  • the contact surface 26 is formed as the surface of a contact plate 32, which has a single or multilayer structure.
  • the contact plate 32 is designed as an SMD component, which can be soldered directly onto connection pads or connection pads of the circuit board 28, the same manufacturing process, in particular the reflow soldering method, can advantageously be used for the attachment of the contact plates 32 ("Reflow" soldering) are used, which is also used for soldering the other SMD components.
  • the contact surface 26 having contact pad 32 is substantially thicker than the conductor tracks of the board 28 is formed.
  • the electrical assembly or connection unit is exposed to strong vibrations, which leads to abrasion of the contact material of contact spring 4 and opposite contact surface 26.
  • the copper or nickel-containing contact plates 32 are provided with a silver layer or gold layer, which advantageously leads to a better conductivity and / or to an increased resistance to wear compared to the conductor tracks located on the board. This advantageously improves the contact ability of a seated contact spring.
  • Fig. 3 shows a block diagram for explaining the inventive method for producing an electrical assembly 2 with the essential stages of production.
  • a layout phase 34 of the method according to the invention takes place in which the line structure or the line layout of the line grid 12 is determined in order to adapt the line grid 12 to the electrical components to be connected in such a way that the components are electrically conductively connected to the connection areas 14 of the line grid 12 can and common lines of the electrical components are combined with the line grid 12.
  • the line grid 12 punched out of a sheet or removed by laser cutting from a sheet.
  • a connecting phase 36 the components of the electrical unit 2 are assembled and the contact springs 4, 6, 8, 10 are electrically conductively connected to the line grid 12. These contact springs 4, 6, 8, 10 then form the electrical connection contacts of the electrical unit 2.
  • a fixing phase 38 of the method according to the invention provides for a fixation of the contact springs 4, 6, 8, 10 on the line grid 12.
  • the fixation is preferably carried out via an insulating member 18 with corresponding spring mounts 24 with which the contact springs 4, 6, 8, 10 are held or by means of a spring holder.
  • a separation phase 39 the short-circuit connections on the line grid 12 are severed.
  • the line grid 12 thus receives the necessary line structure in order to produce an electrical connection of the electrical components to a further electrical unit 30.
  • Fig. 4 shows a schematic representation of the detailed explanation of a first and second method step for producing an electrical assembly 2 according to an embodiment of the invention by way of example to two contact springs 4, 6th
  • a first method step 40 the insulating part 18 is inserted into a mounting bracket 42.
  • the insulating member 18 is oriented such that the spring receivers 24 point out with its largest cross-sectional opening of the mounting bracket 42.
  • the contact springs 4, 6 are inserted into the spring receptacles 24.
  • the contact springs 4, 6 are used with their contact spring end with the smaller diameter in the spring receptacle 24 so that the contact springs 4, 6 can be supported with its larger diameter on the projection 22.
  • Fig. 4 is also indicated that the line grid 12 is set with the downwardly facing fasteners 20 and the pads 14 on the contact springs 4, 6.
  • Fig. 5 shows a schematic representation of the detailed explanation of the third, fourth and fifth method step for producing an electrical assembly 2 according to an embodiment of the invention by way of example to two contact springs 4, 6.
  • a third method step 46 the line grid 12 is pressed into the insulation part 18 and fixedly connected to the insulation part 18 by the fastening means 20.
  • a fourth method step 48 the electrical connection of the contact springs 4, 6 is checked with the line grid 12 by a control unit 50 connects a first electrically conductive contact 52 with the line grid 12 and a second electrical contact 54 with the contact spring 4, 6th
  • a fifth method step 56 the short-circuit connections on the line grid 12 are severed.
  • the line grid 12 receives the necessary for electrical connection of the electrical components, such as solenoid valves, with another electrical unit 30, such as control unit, line structure.
  • the fully assembled electrical unit 2 can then be removed from the mounting bracket 42 and electrically connected by placing a further unit 30 thereto.

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  • Regulating Braking Force (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

Die Erfindung betrifft eine elektrische Baueinheit (2) mit mindestens zwei elektrischen Bauteilen und mindestens drei elektrisch leitenden Anschlusskontakten. Mit diesen Anschlusskontakten ist die elektrische Baueinheit (2) mit einer weiteren elektrischen Einheit (30) elektrisch leitend verbindbar, wobei die elektrischen Anschlusskontakte über ein Leitungsgitter (12) elektrisch leitend mit den mindestens zwei elektrischen Bauteilen verbunden sind. Erfindungsgemäß sind die elektrisch leitenden Anschlusskontakte als elektrisch leitende Kontaktfedern (4, 6, 8, 10) ausgebildet und gemeinsame elektrische Leitungen (16) der mindestens zwei elektrischen Bauteile mittels des Leitungsgitters (12) elektrisch leitend zusammengefasst, wobei diese gemeinsamen elektrischen Leitungen (16) eine oder mehrere gemeinsame elektrisch leitende Kontaktfedern (4) aufweisen. Ferner betrifft die Erfindung eine Verbindungseinheit mit einer elektrischen Baueinheit (2) und einer weiteren elektrischen Einheit (30), ein Fahrzeug damit und ein Verfahren zum Herstellen elektrischen Baueinheit (2).The invention relates to an electrical component (2) with at least two electrical components and at least three electrically conductive connection contacts. With these connection contacts, the electrical assembly (2) with another electrical unit (30) is electrically conductively connected, wherein the electrical connection contacts via a wire grid (12) are electrically connected to the at least two electrical components. According to the invention, the electrically conductive connection contacts are designed as electrically conductive contact springs (4, 6, 8, 10) and common electrical lines (16) of the at least two electrical components are electrically conductively connected by means of the conductor grid (12), these common electrical lines (16) have one or more common electrically conductive contact springs (4). Furthermore, the invention relates to a connection unit with an electrical structural unit (2) and a further electrical unit (30), a vehicle with it and a method for producing electrical structural unit (2).

Description

Die Erfindung betrifft eine elektrische Baueinheit mit mindestens zwei elektrischen Bauteilen, insbesondere Sensoren und/oder Aktuatoren, gemäß dem Oberbegriff von Anspruch 1, eine Verbindungseinheit mit mindestens einer elektrischen Baueinheit und mindestens einer weiteren elektrischen Einheit, ein Fahrzeug, insbesondere Nutzfahrzeug, sowie ein Verfahren zum Herstellen einer elektrischen Baueinheit gemäß dem Oberbegriff von Anspruch 14.The invention relates to an electrical unit with at least two electrical components, in particular sensors and / or actuators, according to the preamble of claim 1, a connection unit with at least one electrical unit and at least one further electrical unit, a vehicle, in particular a commercial vehicle, and a method for Production of an electrical unit according to the preamble of claim 14.

Aus dem Stand der Technik sind elektrische Baueinheiten, wie beispielsweise Magnetventileinheiten bekannt, bei denen die Leitungen eines umspritzten Leitungsgitters, eines sogenannten Leadframe, nach außen geführt werden, um über einen Steckkontakt eine leitende Verbindung mit einer weiteren elektrischen Einheit, wie beispielsweise eine Steuereinheit, herzustellen.From the prior art, electrical components, such as solenoid valve units are known in which the lines of an overmolded line grid, a so-called leadframe, are led to the outside, via a plug contact a conductive connection with another electrical unit, such as a control unit produce ,

DE 10 2007 052 697 A1 zeigt eine Magnetventileinheit für eine elektropneumatische Steuerung, die insbesondere in einem Druckmodulator eines Nutzfahrzeugs einsetzbar ist. Dazu werden die Magnetspulen und der Drucksensor über einen gemeinsamen Leadframe kontaktiert und einzelne Leads bzw. Leitungen zu einer elektrischen Schnittstelle geführt. Über die elektrische Schnittstelle kann dann eine elektrisch leitende Steckverbindung mit einer elektronischen Steuereinheit hergestellt werden. Die Herstellung einer Steckverbindung ist jedoch aufwändig und kostenintensiv bei der Herstellung der elektrischen Einheiten, wie zum Beispiel Steuereinheiten. DE 10 2007 052 697 A1 shows a solenoid valve unit for an electropneumatic control, which is particularly useful in a pressure modulator of a commercial vehicle. For this purpose, the magnetic coils and the pressure sensor are contacted via a common leadframe and led individual leads or lines to an electrical interface. An electrically conductive plug connection with an electronic control unit can then be produced via the electrical interface. However, the production of a plug connection is complicated and expensive in the production of electrical units, such as control units.

Zur Vermeidung einer derartigen Steckverbindung ist aus dem Stand der Technik die Verwendung von elektrisch leitenden Kontaktfedern bekannt, welche direkt an den elektrischen Bauteilen, insbesondere Sensoren und/oder Aktuatoren, befestigt sind.To avoid such a connector, the use of electrically conductive contact springs is known from the prior art, which are attached directly to the electrical components, in particular sensors and / or actuators.

DE 10 2012 014 407 A1 zeigt eine Vorrichtung zur Erfassung und Verarbeitung von Sensormesswerten und/oder zur Steuerung von Aktuatoren. Die Sensoren und/oder Aktuatoren sind in einem Basisgehäuse angeordnet und eine Steuerelektronik in einem Deckel, wobei der Deckel mit dem Basisgehäuse abdeckend verbindbar ist. Zur Herstellung einer leitenden elektrischen Verbindung zwischen den Sensoren und/oder Aktuatoren mit der Steuerelektronik weisen die Sensoren und/oder Aktuatoren elektrisch leitende Kontaktfedern auf, die mit Kontaktflächen auf einer Leiterplatte der Steuerelektronik in Verbindung stehen. DE 10 2012 014 407 A1 shows an apparatus for detecting and processing sensor readings and / or for controlling actuators. The sensors and / or actuators are arranged in a base housing and an electronic control unit in a cover, wherein the cover is coverable connected to the base housing. To produce a conductive electrical connection between the sensors and / or actuators with the control electronics, the sensors and / or actuators have electrically conductive contact springs, which are in contact with contact surfaces on a printed circuit board of the control electronics.

Eine derartige Verbindung erfordert jedoch für jeden Sensor und/oder Aktuator mindestens zwei Kontaktfedern und ist dadurch entsprechend kostenintensiv.However, such a connection requires at least two contact springs for each sensor and / or actuator and is therefore correspondingly expensive.

Nach alledem liegt der Erfindung die Aufgabe zu Grunde, eine einfache und kosteneffektive elektrische Verbindung zu schaffen, mit der mindestens zwei elektrische Bauteile einer elektrischen Baueinheit mit einer weiteren elektrischen Einheit elektrisch leitend verbunden werden können.After all, the invention is based on the object to provide a simple and cost-effective electrical connection with which at least two electrical components of an electrical unit can be electrically connected to a further electrical unit.

Die Erfindung löst diese Aufgabe mit einer elektrischen Baueinheit mit den Merkmalen gemäß Anspruch 1, mit einer Verbindungseinheit mit den Merkmalen gemäß Anspruch 11, mit einem Fahrzeug mit den Merkmalen gemäß Anspruch 13 sowie mit einem Verfahren zum Herstellen einer elektrischen Baueinheit mit den Merkmalen gemäß Anspruch 14.The invention solves this object with an electrical unit with the features according to claim 1, with a connection unit with the features according to claim 11, with a vehicle with the features according to claim 13 and with a method for producing an electrical unit with the features according to claim 14 ,

Die erfindungsgemäße elektrische Baueinheit, insbesondere Magnetventileinheit, weist mindestens zwei elektrische Bauteile, insbesondere Sensoren und/oder Aktuatoren, und mindestens drei elektrisch leitende Anschlusskontakte auf. Mittels der elektrisch leitenden Anschlusskontakte ist die elektrische Baueinheit mit einer weiteren elektrischen Einheit verbindbar. Dies kann beispielsweise eine Verbindung zwischen einer Magnetventileinheit und einer elektrischen Steuereinheit sein.The electrical assembly according to the invention, in particular solenoid valve unit, has at least two electrical components, in particular sensors and / or actuators, and at least three electrically conductive connection contacts. By means of the electrically conductive connection contacts, the electrical assembly can be connected to a further electrical unit. This may for example be a connection between a solenoid valve unit and an electrical control unit.

Als Sensoren kommen beispielsweise Drucksensoren, Temperatursensoren, Drehzahlsensoren, Beschleunigungssensoren und Magnetsensoren etc. in Betracht. Die Aktuatoren sind bevorzugt derart ausgebildet, dass sie Fluidströme steuern und regeln können, wie beispielsweise Magnetventile. Es kommen jedoch auch Stellmotoren, Elektromagnete oder dergleichen als Aktuatoren in Betracht.As sensors, for example, pressure sensors, temperature sensors, speed sensors, acceleration sensors and magnetic sensors, etc. come into consideration. The actuators are preferably designed such that they can control and regulate fluid flows, such as solenoid valves. However, servomotors, electromagnets or the like come as actuators into consideration.

Die elektrisch leitenden Anschlusskontakte sind über ein Leitungsgitter, auch Leadframe genannt, elektrisch leitend mit den mindestens zwei elektrischen Bauteilen verbunden.The electrically conductive connection contacts are electrically conductively connected to the at least two electrical components via a line grid, also called a leadframe.

Erfindungsgemäß sind die elektrisch leitenden Anschlusskontakte der elektrischen Baueinheit als elektrisch leitende Kontaktfedern ausgebildet. Durch die Federkraft der Kontaktfedern ergibt sich vorteilhafterweise ein zuverlässiger elektrischer Kontakt.According to the invention, the electrically conductive connection contacts of the electrical assembly are designed as electrically conductive contact springs. The spring force of the contact springs advantageously results in a reliable electrical contact.

Mittels des Leitungsgitters sind gemeinsame elektrische Leitungen der mindestens zwei elektrischen Bauteile elektrisch leitend zusammengefasst. Bevorzugt ist die zusammengefasste, elektrische Leitung eine Masse-Leitung (GND-Leitung) oder eine Null-Volt-Potentialleitung der elektrischen Bauteile oder eine weitere, stets auf gleichem Potenzial befindliche Leitung.By means of the line grid common electrical lines of the at least two electrical components are combined in an electrically conductive manner. The combined electrical line is preferably a ground line (GND line) or a zero-volt potential line of the electrical components or another line always at the same potential.

Diese gemeinsame Leitung des Leitungsgitters weist eine gemeinsame elektrisch leitende Kontaktfeder als elektrisch leitenden Anschlusskontakt für eine elektrisch leitende Verbindung mit einer weiteren elektrischen Einheit auf. Dadurch lässt sich vorteilhafterweise die Anzahl der verwendeten Kontaktfedern reduzieren und somit Platz und Kosten einsparen gegenüber einer herkömmlichen leitenden Verbindung zwischen einer elektrischen Baueinheit und einer weiteren elektrischen Einheit gemäß dem Stand der Technik.This common line of the line grid has a common electrically conductive contact spring as an electrically conductive connection contact for an electrically conductive connection with a further electrical unit. This advantageously reduces the number of contact springs used and thus saves space and costs compared to a conventional conductive connection between an electrical unit and a further electrical unit according to the prior art.

Alternativ kann die gemeinsame Leitung des Leitungsgitters auch über mehr als eine elektrisch leitende Kontaktfeder mit einer weiteren elektrischen Einheit verbunden werden. Das ist insbesondere dann vorteilhaft, wenn in der gemeinsamen Leitung ein größerer Strom fließt als in den anderen Leitungen des Leitungsgitters. Um diesen größeren Strom zuverlässig zu übertragen, sind ggf. mehr als eine Kontaktfeder vorteilhaft.Alternatively, the common line of the line grid can also be connected via more than one electrically conductive contact spring with another electrical unit. This is particularly advantageous if a larger current flows in the common line than in the other lines of the line grid. In order to reliably transmit this larger current, more than one contact spring may be advantageous.

Gemäß einer Weiterbildung der Erfindung weist das Leitungsgitter bzw. Leadframe elektrisch leitende Anschlussflächen auf, welche derart ausgebildet sind, um eine elektrisch leitende Verbindung mit den elektrischen Bauteilen zu bilden. Dazu wird ein Anschlussdraht des elektrischen Bauteils, zum Beispiel ein Spulendraht des Magnetventils, zwischen zwei Anschlussflächen gelegt und die Anschlussflächen miteinander verbunden, insbesondere verlötet oder verschweißt. Die derartige Verbindung zwischen Leitungsgitter und elektrischen Bauteil ist vorteilhafterweise besonders vibrationsfest, wodurch die Lebensdauer der elektrischen Verbindung erhöht wird.According to one embodiment of the invention, the line grid or leadframe on electrically conductive pads, which are designed so as to form an electrically conductive connection with the electrical components. For this purpose, a connecting wire of the electrical component, for example, a coil wire of the solenoid valve, placed between two pads and the pads connected to each other, in particular soldered or welded. The connection between the wire grid and the electrical component is advantageously particularly resistant to vibration, which increases the service life of the electrical connection.

In einer Weiterbildung der Erfindung sind die Kontaktfedern in einem Isolationsteil angeordnet. Das Isolationsteil ist bevorzugt einstückig, insbesondere als Kunststoffspritzgussteil, ausgebildet und dient als Halterung für die Kontaktfedern. Dadurch vereinfacht sich vorteilhafterweise die Montage der Kontaktfedern, da diese lediglich in das Isolationsteil eingesteckt werden.In a development of the invention, the contact springs are arranged in an insulating part. The insulating part is preferably integrally formed, in particular as a plastic injection molded part, and serves as a holder for the contact springs. This advantageously simplifies the Assembly of the contact springs, as they are only inserted into the insulation part.

Eine Weiterbildung der Erfindung sieht vor, dass das Isolationsteil mittels Befestigungsmittel am Leitungsgitter bzw. Leadframe befestigt ist. Die Befestigung gewährleistet vorteilhafterweise eine anhaltend genaue Positionierung der Kontaktfedern, welche in dem Isolationsteil angeordnet sind, so dass über die Kontaktfedern eine zuverlässige leitende Verbindung mit dem Leitungsgitter hergestellt werden kann. Bevorzugt sind die Befestigungsmittel in unmittelbarer Nähe der Kontaktfedern angeordnet, um die von den Kontaktfedern auf das Leitungsgitter ausgeübten Druckkräfte aufzunehmen und eine Durchbiegung des Leitungsgitters vorteilhafterweise zu vermeiden.A development of the invention provides that the insulating part is fastened by means of fastening means on the line grid or leadframe. The attachment advantageously ensures a persistently accurate positioning of the contact springs, which are arranged in the insulating part, so that via the contact springs, a reliable conductive connection can be made with the wire grid. Preferably, the fastening means are arranged in the immediate vicinity of the contact springs in order to absorb the compressive forces exerted by the contact springs on the wire grid and to advantageously avoid a deflection of the wire grid.

Gemäß einer Weiterbildung der Erfindung sind die Befestigungsmittel zur Befestigung des Isolationsteils auf dem Leitungsgitter bzw. Leadframe sägezahnförmig ausgebildet. Bevorzugt ist die zugehörige Ausnehmung in dem Isolationsteil ebenfalls sägezahnförmig ausgebildet. Dadurch sorgt das Befestigungsmittel für eine sichere Verbindung und lässt sich leicht in die entsprechende Ausnehmung einführen.According to one embodiment of the invention, the fastening means for fixing the insulating part on the wire grid or leadframe are sawtooth-shaped. Preferably, the associated recess in the insulating part is also sawtooth-shaped. As a result, the fastening means for a secure connection and can be easily inserted into the corresponding recess.

Bevorzugt sind die Befestigungsmittel Teil des mit dem Isolationsteil zu verbindenden Leitungsgitters und werden im Herstellungsprozess des Leitungsgitters mit der Leitungsstruktur herausgestanzt. Für die Verbindung mit dem Isolationsteil werden diese Befestigungsmittel derart hochgebogen, dass sie im Wesentlichen senkrecht zur Leitungsstruktur stehen. Das hat den Vorteil, dass keine separaten Verbindungsteile zur Befestigung des Leadframes an dem Isolationsteil benötigt werden.The fastening means are preferably part of the line grid to be connected to the insulating part and are punched out with the line structure during the production process of the line grid. For the connection with the insulating part, these fastening means are bent up so that they are substantially perpendicular to the line structure. This has the advantage that no separate connecting parts are required for fastening the leadframe to the insulating part.

In einer Weiterbildung der Erfindung weist das Isolationsteil eine - als an zwei einander gegenüberliegenden Enden offene Aufnahme ausgebildete - Federaufnahme auf, wobei diese Federaufnahme mindestens eine Querschnittsverjüngung aufweist. Diese Querschnittsverjüngung ragt derart in die Federaufnahme hinein, dass sie einen Vorsprung bildet, an dem sich eine Kontaktfeder abstützen kann.In one development of the invention, the insulating part has a spring receptacle formed as an open receptacle at two opposite ends, wherein this spring receptacle has at least one spring receptacle Has cross-sectional taper. This cross-sectional taper protrudes into the spring receptacle in such a way that it forms a projection on which a contact spring can be supported.

Gemäß einer Weiterbildung der Erfindung ist die Kontaktfeder derart ausgebildet, dass die Kontaktfeder der Form der Federaufnahme angepasst ist. Bevorzugt weist die Kontaktfeder verschiedene Durchmesser auf, wobei das zur Leiterbahn bzw. Leadframe gerichtete Kontaktfederende einen größeren Querschnitt aufweist als das zum Anschluss einer weiteren Einheit dienenden Kontaktfederende. Dadurch wird die Kontaktfeder durch den Vorsprung innerhalb der Federaufnahme derart gehalten, dass die Kontaktfeder nicht herausfallen kann, falls die elektrische Baueinheit keine elektrische Verbindung mit einer weiteren Einheit eingeht, d.h. sich im unmontierten Zustand befindet.According to one embodiment of the invention, the contact spring is designed such that the contact spring is adapted to the shape of the spring receptacle. Preferably, the contact spring has different diameters, wherein the contact spring end directed towards the conductor track or leadframe has a larger cross-section than the contact spring end serving to connect a further unit. Thereby, the contact spring is held by the projection within the spring retainer such that the contact spring can not fall out, if the electrical unit does not make electrical connection with another unit, i. is in the unmounted state.

In einer Weiterbildung der Erfindung weist das Isolationsteil mindestens einen Stützvorsprung auf, welcher derart ausgebildet ist, um das Isolationsteil gegen die elektrischen Bauteile abzustürzen. Die durch die Kontaktfedern auf das Isolationsteil wirkenden Kräfte werden über den Stützvorsprung abgeleitet. Es entsteht eine geringere Durchbiegung des Isolationsteils, wodurch die Kontaktfedern vorteilhafterweise kaum zu nachteiligen Schwingungen anregbar sind.In one development of the invention, the insulation part has at least one support projection, which is designed in such a way as to crash the insulation part against the electrical components. The forces acting on the insulating part by the contact springs are dissipated via the supporting projection. There is a lower deflection of the insulating part, whereby the contact springs are advantageously hardly excitable to adverse vibrations.

Gemäß einer Weiterbildung der Erfindung bedeckt das Isolationsteil das Leitungsgitter bzw. Leadframe, so dass das Leitungsgitter in dem Isolationsteil integriert ist. Dadurch sind die Leitungsstrukturen des Leitungsgitters, ähnlich einer Umspritzung, zur Umgebung hin isoliert und das Leitungsgitter weist somit vorteilhafterweise eine höhere Stabilität auf.According to a development of the invention, the insulating part covers the line grid or leadframe, so that the line grid is integrated in the insulating part. As a result, the line structures of the line grid, similar to an encapsulation, insulated from the environment and thus the line grid advantageously has a higher stability.

In einer alternativen Weiterbildung der Erfindung sind die Kontaktfedern mittels einer Federhalterung mechanisch auf dem Leitungsgitter fixiert. Dadurch ist es möglich, ein Leitungsgitter bzw. Leadframe zu verwenden, welches in herkömmlicher Art und Weise umspritzt ist. Um eine Schnittstelle zwischen dem Leitungsgitter und der Kontaktfeder zu bilden, weist das Leitungsgitter ein Durchgangsloch zum Kontaktieren des Leitungsgitters mit der Kontaktfeder auf. Zum Fixieren der Kontaktfedern werden diese mittels der Federhalterung gehalten, wobei die Federhalterung an dem Leitungsgitter festklemmt oder mit diesem verschweißt ist. Alternativ ist die Federhalterung bereits Teil der Umspritzung des Leitungsgitters.In an alternative development of the invention, the contact springs are mechanically fixed by means of a spring holder on the wire grid. This makes it possible to use a line grid or lead frame, which is encapsulated in a conventional manner. In order to form an interface between the wire grid and the contact spring, the wire grid has a through hole for contacting the wire grid with the contact spring. To fix the contact springs they are held by means of the spring holder, wherein the spring holder is clamped to the line grid or welded thereto. Alternatively, the spring holder is already part of the encapsulation of the line grid.

Bei der erfindungsgemäßen elektrischen Baueinheit können mindestens zwei, drei oder mehr der vorstehend beschriebenen Weiterbildungen miteinander kombiniert werden, um im Rahmen der Erfindung sinnvolle Merkmalskombinationen zu erhalten.In the case of the electrical structural unit according to the invention, at least two, three or more of the developments described above can be combined with one another in order to obtain meaningful feature combinations within the scope of the invention.

Ferner wird die o.g. Aufgabe mittels einer Verbindungseinheit, insbesondere Mechatronikeinheit, mit mindestens einer elektrischen Baueinheit und mindestens einer weiteren elektrischen Einheit gelöst. Zur Bildung einer erfindungsgemäßen Mechatronikeinheit ist die elektrische Baueinheit bevorzugt eine Magnetventileinheit und die weitere elektrische Einheit eine elektrische Steuereinheit. Die erfindungsgemäße Verbindungseinheit wird jedoch ebenso durch eine einfache Verbindung zwischen Magnetventileinheit und eines Steckers als weitere elektrische Einheit gebildet, wie es beispielsweise bei einfachen ABS-Magnetventilen in einer Fahrzeugbremsanlage der Fall ist.Furthermore, the o.g. Task solved by means of a connection unit, in particular mechatronics unit, with at least one electrical unit and at least one further electrical unit. In order to form a mechatronic unit according to the invention, the electrical unit is preferably a solenoid valve unit and the further electrical unit is an electrical control unit. However, the connection unit according to the invention is also formed by a simple connection between the solenoid valve unit and a plug as another electrical unit, as is the case for example in simple ABS solenoid valves in a vehicle brake system.

Bei der erfindungsgemäßen Verbindungseinheit erfolgt die Kontaktierung der elektrischen Bauteile, insbesondere Sensoren und/oder Aktuatoren, vorteilhafterweise gleichzeitig durch Aufsetzen der weiteren elektrischen Einheit.In the connection unit according to the invention, the contacting of the electrical components, in particular sensors and / or actuators, advantageously takes place simultaneously by placing the further electrical unit.

Gemäß einer Weiterbildung der Erfindung weist die weitere elektrische Einheit Kontaktflächen auf, welche derart ausgebildet sind, um mit den elektrisch leitenden Kontaktfedern der elektrischen Baueinheit eine elektrisch leitende Verbindung einzugehen. Dabei können die Kontaktflächen direkt auf einer Platine angeordnet sein oder auf einem als SMD-Bauteil (Surface Mounted Device) ausgebildeten Kontaktplättchen.According to one embodiment of the invention, the further electrical unit has contact surfaces, which are designed in such a way as to communicate with the electrically conductive contact springs of the electrical unit to make electrically conductive connection. In this case, the contact surfaces can be arranged directly on a circuit board or on a SMD component (Surface Mounted Device) formed contact plate.

Das Kontaktplättchen ist bevorzugt dicker als die auf der Platine angeordneten Leiterbahnen ausgebildet, um bei einem möglichen Abrieb durch die aufsitzende Kontaktfeder die elektrische Kontaktfähigkeit zu erhalten. Dabei können die Kontaktplättchen auch mehrschichtig aufgebaut sein, insbesondere eine Silber- oder Goldschicht aufweisen.The contact plate is preferably made thicker than the conductor tracks arranged on the board, in order to obtain the electrical contact capability in the event of possible abrasion by the seated contact spring. In this case, the contact plates can also be constructed in multiple layers, in particular have a silver or gold layer.

Die o.g. Aufgabe wird außerdem mittels eines Fahrzeugs, insbesondere Nutzfahrzeugs, gelöst, wobei das Fahrzeug mindestens eine vorstehend beschriebene elektrische Baueinheit und/oder mindestens eine o.g. Verbindungseinheit aufweist.The o.g. The object is also achieved by means of a vehicle, in particular a commercial vehicle, wherein the vehicle has at least one electrical unit described above and / or at least one o.g. Having connection unit.

Schließlich wird die o.g. Aufgabe mittels eines Verfahrens zum Herstellen einer elektrischen Baueinheit, insbesondere Magnetventileinheit, mit mindestens zwei elektrischen Bauteilen, insbesondere Sensoren und/oder Aktuatoren, und mindestens drei elektrisch leitenden Anschlusskontakten gelöst, wobei die elektrische Baueinheit mittels der Anschlusskontakte mit einer weiteren elektrischen Einheit elektrisch leitend verbindbar ist. Die elektrisch leitenden Anschlusskontakte sind über ein Leitungsgitter bzw. Leadframe elektrisch leitend mit den mindestens zwei elektrischen Bauteilen verbunden und als elektrisch leitende Kontaktfedern ausgebildet.Finally, the o.g. Task by means of a method for producing an electrical assembly, in particular solenoid valve unit, with at least two electrical components, in particular sensors and / or actuators, and at least three electrically conductive connection contacts solved, wherein the electrical assembly is electrically conductively connected by means of the connection contacts with another electrical unit , The electrically conductive connection contacts are electrically conductively connected via a line grid or leadframe to the at least two electrical components and designed as electrically conductive contact springs.

Um vorteilhafterweise die Anzahl der elektrisch leitenden Anschlusskontakten zu reduzieren, werden gemeinsame elektrischen Leitungen der mindestens zwei elektrischen Bauteile, insbesondere GMD-Leitungen, mittels des Leitungsgitters elektrisch leitend zusammengefasst und mit einer elektrisch leitenden Kontaktfeder elektrisch leitend verbunden. Das Zusammenfassen der gemeinsamen Leitungen wird über eine geeignete Leitungsstruktur bzw. Leitungslayout des Leitungsgitters erzeugt und ist besonders einfach herstellbar, da das Leitungsgitter ausgestanzt oder lasergeschnitten wird.In order to advantageously reduce the number of electrically conductive connection contacts, common electrical lines of the at least two electrical components, in particular GMD lines, are combined in an electrically conductive manner by means of the conductor grid and electrically conductively connected to an electrically conductive contact spring. The merging of the common lines is generated via a suitable line structure or line layout of the line grid and is particularly easy to produce, since the line grid is punched or laser cut.

Aus der Kombination einer über ein Leitungsgitter bzw. Leadframe realisierten, vorteilhaft ausgestalteten Leitungsstruktur, insbesondere das Zusammenfassen von gemeinsamen Leitern mehrerer elektrischer Bauteile, mit der Verwendung von elektrisch leitenden Kontaktfedern ist vorteilhafterweise eine konstruktiv einfache und kostengünstig aufgebaute elektrische Verbindung zwischen der elektrischen Baueinheit und einer weiteren elektrischen Einheit mit möglichst wenig elektrischen Anschlusskontakten möglich.From the combination of a line grid or leadframe realized, advantageously designed line structure, in particular the combination of common conductors of several electrical components, with the use of electrically conductive contact springs is advantageously a structurally simple and inexpensive constructed electrical connection between the electrical assembly and another electrical unit with as few electrical connection contacts possible.

Durch die erfindungsgemäße Verwendung des Leitungsgitters können die Kontaktfedern beliebig angeordnet sein, unabhängig von den elektrischen Anschlüssen der elektrischen Bauteile. Somit sind die Kontaktfedern bevorzugt räumlich beabstandet und gegeneinander elektrisch isoliert angeordnet und in ihrer Anordnung der zu verbindenden weiteren elektrischen Einheit angepasst.The inventive use of the line grid, the contact springs can be arranged arbitrarily, regardless of the electrical connections of the electrical components. Thus, the contact springs are preferably spatially spaced and arranged against each other electrically isolated and adapted in their arrangement of the connected further electrical unit.

Die Verbindung über elektrisch leitende Kontaktfedern hat zudem den Vorteil, dass die elektrische Verbindung der elektrischen Baueinheit mit der weiteren Einheit auch bei starken Vibrationen, wie sie zum Beispiel in Fahrzeugen auftreten, zuverlässig funktioniert. Zudem ermöglichen die Kontaktfedern vorteilhafterweise einen Toleranzausgleich von Fertigungstoleranzen der einzelnen Komponenten sowie eine Kompensation von Wärmeausdehnungen.The connection via electrically conductive contact springs also has the advantage that the electrical connection of the electrical unit with the other unit even with strong vibrations, such as those that occur in vehicles, works reliably. In addition, the contact springs advantageously allow a tolerance compensation of manufacturing tolerances of the individual components and a compensation of thermal expansion.

Gemäß einer Weiterbildung der Erfindung weist das Verfahren zum Herstellen einer elektrischen Baueinheit folgende Schritte auf:

  1. 1. Einfügen eines Isolationsteils in eine Montagehalterung,
  2. 2. Einfügen der Kontaktfedern in das Isolationsteil,
  3. 3. Einpressen des Leitungsgitters in das Isolationsteil,
  4. 4. Kontrollieren der elektrischen Verbindungen der eingefügten Kontaktfedern und
  5. 5. Durchtrennen von Kurzschlussbrücken des Leitungsgitters.
According to one development of the invention, the method for producing an electrical unit comprises the following steps:
  1. 1. inserting an insulating part in a mounting bracket,
  2. 2. inserting the contact springs into the insulation part,
  3. 3. Pressing the cable grille into the insulating part,
  4. 4. Check the electrical connections of the inserted contact springs and
  5. 5. Cutting through short-circuit bridges of the conductor grid.

Die Herstellung einer derartigen erfindungsgemäßen Baueinheit ist besonders einfach und kostengünstig. Durch das Zusammenfassen von gemeinsamen elektrischen Leitungen der elektrischen Bauteile, wird vorteilhafterweise die Anzahl der verwendeten Kontaktfedern reduziert. So sind gemäß dem Stand der Technik herkömmlicherweise für n elektrische Bauteile, insbesondere Sensoren und/oder Aktuatoren, 2*n Kontaktfedern notwendig, um eine elektrisch leitende Verbindung mit einer weiteren Einheit herzustellen. Die erfindungsgemäße Baueinheit benötigt hingegen lediglich n+1 Kontaktfedern, wodurch vorteilhafterweise Kosten und Montageaufwand gegenüber dem Stand der Technik reduziert werden.The production of such a structural unit according to the invention is particularly simple and inexpensive. By combining common electrical lines of the electrical components, advantageously, the number of contact springs used is reduced. Thus, according to the prior art, conventionally for n electrical components, in particular sensors and / or actuators, 2 * n contact springs are necessary in order to produce an electrically conductive connection with a further unit. By contrast, the structural unit according to the invention requires only n + 1 contact springs, which advantageously reduces costs and assembly costs compared to the prior art.

Weitere Ausführungsformen ergeben sich aus den Ansprüchen sowie aus den anhand der Zeichnung näher erläuterten Ausführungsbeispielen. In der Zeichnung zeigen:

Fig. 1
eine schematische Darstellung einer Draufsicht auf eine Magnetventileinheit mit drei Magnetventilen,
Fig. 2
eine schematische Darstellung einer Schnittdarstellung durch eine Kontaktfeder,
Fig. 3
ein Blockschaltbild des erfindungsgemäßen Verfahrens,
Fig. 4
eine schematische Darstellung zur Erläuterung des ersten und zweiten Verfahrensschrittes und
Fig. 5
eine schematische Darstellung zur Erläuterung des dritten, vierten und fünften Verfahrensschrittes.
Further embodiments will become apparent from the claims and from the embodiments explained in more detail with reference to the drawing. In the drawing show:
Fig. 1
a schematic representation of a plan view of a solenoid valve unit with three solenoid valves,
Fig. 2
a schematic representation of a sectional view through a contact spring,
Fig. 3
a block diagram of the method according to the invention,
Fig. 4
a schematic representation for explaining the first and second method step and
Fig. 5
a schematic representation for explaining the third, fourth and fifth method step.

In der Zeichnung werden dieselben konstruktiven Elemente jeweils mit gleichen Bezugsziffern versehen.In the drawing, the same constructive elements are each provided with the same reference numerals.

Fig. 1 zeigt eine schematische Darstellung einer Draufsicht auf eine als Magnetventileinheit ausgeführte elektrische Baueinheit 2 mit drei nicht weiter dargestellten Magnetventilen als elektrische Bauteile. Fig. 1 shows a schematic representation of a plan view of a designed as a solenoid valve unit electrical assembly 2 with three solenoid valves not shown as electrical components.

Die elektrisch leitenden Anschlusskontakte sind als elektrisch leitende Kontaktfedern 4, 6, 8, 10 ausgebildet und räumlich beabstandet zueinander auf einem Leitungsgitter bzw. Leadframe 12 elektrisch leitend mit diesem angeordnet.The electrically conductive connection contacts are formed as electrically conductive contact springs 4, 6, 8, 10 and arranged spatially spaced from one another on a wire grid or leadframe 12 so as to be electrically conductive therewith.

Das Leitungsgitter 12 weist für jedes elektrische Bauteil zwei Anschlussflächen 14 auf, an denen die Kontaktdrähte der elektrischen Bauteile, hier Magnetventile, in nicht näher dargestellter Weise, elektrisch leitend befestigt sind, insbesondere mittels Elektroschweißen. Bevorzugt weist das Leitungsgitter 12 eine Leitungsstruktur auf, die der räumlichen Ausdehnung der elektrischen Bauteile angepasst ist, und die Anschlussflächen 14 in unmittelbarer Nähe der Kontaktdrähte der elektrischen Bauteile positioniert.The line grid 12 has, for each electrical component, two connection surfaces 14, on which the contact wires of the electrical components, in this case solenoid valves, are fastened in an electrically non-illustrated manner, in particular by means of arc welding. Preferably, the line grid 12 has a line structure that is adapted to the spatial extent of the electrical components, and the pads 14 positioned in the immediate vicinity of the contact wires of the electrical components.

Für die Anschlussflächen 14 werden bevorzugt Abschnitte des Leitungsgitters 12 derart umgebogen, dass diese Abschnitte im Wesentlichen senkrecht zu der Leitungsstruktur des Leitungsgitters 12 verlaufen.For the connection surfaces 14, portions of the conductor grid 12 are preferably bent in such a way that these portions extend substantially perpendicular to the conductor structure of the conductor grid 12.

Die Erfindung sieht vor, dass mittels der Leitungsstruktur des Leitungsgitters 12 gemeinsame Leitungen der elektrischen Bauteile zu einer Leitung zusammengefasst werden. Bevorzugt sind die Masseleitungen der Magnetventile zu einer gemeinsamen Masse-Leitung 16 auf dem Leitungsgitter 12 zusammengefasst. Die gemeinsame Leitung 16 ist über drei Anschlussflächen 14 mit den Magnetventilen elektrisch leitend verbunden und weist eine gemeinsame Kontaktfeder 4 als elektrisch leitenden Anschlusskontakt auf. Die anderen Kontaktfedern 6, 8, 10 sind jeweils elektrisch leitend mit einem der elektrischen Bauteilen, insbesondere Magnetventile, mittels jeweils einer Anschlussfläche 14 verbunden und bilden den positiven Pol der anliegenden Speisespannung.The invention provides that by means of the line structure of the line grid 12 common lines of the electrical components are combined to form a line. Preferably, the ground lines of the solenoid valves are combined to form a common ground line 16 on the line grid 12. The common line 16 is electrically conductively connected to the solenoid valves via three connection surfaces 14 and has a common contact spring 4 as an electrically conductive connection contact. The other contact springs 6, 8, 10 are each electrically conductive with one of the electrical components, in particular Solenoid valves, each connected by a pad 14 and form the positive pole of the applied supply voltage.

Alternativ kann die gemeinsame Leitung 16 auch mehr als eine elektrisch leitende Kontaktfeder als elektrisch leitende Anschlusskontakte aufweisen, was hier jedoch nicht dargestellt ist. Eine Verbindung über mehr als eine elektrisch leitende Kontaktfeder ist besonders dann vorteilhaft, wenn auf der gemeinsamen Leitung 16 ein größerer Strom als auf den anderen Leitungen des Leitungsgitters 12 fließt.Alternatively, the common line 16 may also have more than one electrically conductive contact spring as electrically conductive connection contacts, which is not shown here. A connection via more than one electrically conductive contact spring is particularly advantageous if a larger current flows on the common line 16 than on the other lines of the line grid 12.

Zum Erzeugen einer derartigen Leitungsstruktur bzw. Leitungslayout wird das Leitungsgitter 12 bevorzugt aus einem Blech ausgestanzt oder lasergeschnitten, wobei die einzelnen Leitungen zunächst alle verbunden sind. Ist das Leitungsgitter 12 soweit verbaut, dass es mechanisch fixiert ist, werden die einzelnen Leitungen entsprechend der gewünschten Leitungsstruktur durchtrennt. Das Durchtrennen derartiger Kurzschlussbrücken ist in Fig. 1 in gestrichelter Linie als Leitungstrennung 17 dargestellt.To produce such a line structure or line layout, the line grid 12 is preferably punched out of a sheet or laser cut, wherein the individual lines are all initially connected. If the line grid 12 installed so far that it is mechanically fixed, the individual lines are severed according to the desired line structure. The severing of such shorting bridges is in Fig. 1 shown in dashed line as line separation 17.

Bevorzugt sind die Kontaktfedern 4, 6, 8, 10 in einem Isolationsteil 18 angeordnet, wobei das Isolationsteil 18 mit einer strichpunktierten Linie in Fig. 1 dargestellt ist.Preferably, the contact springs 4, 6, 8, 10 are arranged in an insulating member 18, wherein the insulating member 18 with a dashed line in Fig. 1 is shown.

Ähnlich, wie bei einem herkömmlich umspritzten Leadframe gemäß dem Stand der Technik, ist das in Fig. 1 dargestellte Leitungsgitter 12 fast vollständig von dem Isolationsteil 18 bedeckt und so vor Umwelteinflüssen geschützt. Dazu ist das Leitungsgitter 12 mittels geeigneter Befestigungsmittel 20 an dem Isolationsteil 18 befestigt, wobei die Befestigungsmittel 20 bevorzugt sägezahnförmig ausgebildet sind und als umgebogene Teilabschnitte des Leitungsgitters 12 in dazu vorgesehene Ausnehmungen in das Isolationsteil 18 eingepresst werden.Similarly, as in a conventional overmolded leadframe according to the prior art, this is in Fig. 1 shown line grid 12 almost completely covered by the insulating member 18 and thus protected from environmental influences. For this purpose, the line grid 12 is fastened by means of suitable fastening means 20 to the insulating member 18, wherein the fastening means 20 are preferably formed like a sawtooth and are pressed as bent portions of the conductor grid 12 in recesses provided for this purpose in the insulating member 18.

Damit die Kontaktfedern 4, 6, 8, 10 im unmontierten Zustand der elektrischen Baueinheit 2, d.h. wenn die elektrische Baueinheit 2 keine elektrische Verbindung zu einer weiteren Einheit eingeht, nicht aus dem Isolationsteil 18 herausfallen, weist das Isolationsteil 18 für jede Kontaktfeder 4, 6, 8, 10 eine Federaufnahme mit einer Querschnittsverjüngung auf, wobei die Querschnittsverjüngung einen in die Federaufnahme hineinragenden Vorsprung 22 bildet, an dem sich die Kontaktfeder 4, 6, 8, 10 abstützt.Thus, the contact springs 4, 6, 8, 10 in the unmounted state of the electrical assembly 2, i. If the electrical unit 2 does not receive electrical connection to another unit, do not fall out of the insulating member 18, the insulation member 18 for each contact spring 4, 6, 8, 10 a spring receiving a cross-sectional taper, wherein the cross-sectional taper projecting into the spring receiving Projection 22 forms, on which the contact spring 4, 6, 8, 10 is supported.

Fig. 2 zeigt eine schematische Darstellung einer Schnittdarstellung beispielhaft durch eine Kontaktfeder 4, welcher in einer Federaufnahme 24 des Isolationsteils 18 eingesetzt ist. Fig. 2 shows a schematic representation of a sectional view by way of example by a contact spring 4, which is inserted in a spring receptacle 24 of the insulating member 18.

Bevorzugt ist die Kontaktfeder 4 kegelförmig oder zylinderförmig ausgebildet und mechanisch vorgespannt verbaut. Die Kontaktfeder 4 ist ferner in seiner Länge und Federkonstante derart dimensioniert, dass die Kontaktfeder 4 im eingebauten Zustand mit hinreichend großer Andruckkraft gegen eine gegenüberliegende Kontaktfläche 26 drücken kann, um einen möglichst kleinen und konstanten elektrischen Übergangswiderstand zu gewährleisten und somit vorteilhafterweise für eine hohe Kontaktsicherheit zu sorgen.Preferably, the contact spring 4 is conical or cylindrical and mechanically biased installed. The contact spring 4 is further dimensioned in its length and spring constant such that the contact spring 4 can press in the installed state with sufficiently large pressure against an opposite contact surface 26 to ensure the smallest possible and constant electrical contact resistance and thus advantageously for a high contact reliability to care.

Um die Kontaktfeder 4 gegen Herausfallen zu sichern, weist die Kontaktfeder 4 Abschnitte mit unterschiedlichen Durchmessern auf. Bevorzugt weist die Kontaktfeder 4 an dem zum Leitungsgitter 12 weisenden Kontaktfederende einen größeren Durchmesser auf als an dem anderen Kontaktfederende. Dieser größere Durchmesser ist der Form der Federaufnahme 24 des Isolationsteils 18 derart angepasst, dass sich die Kontaktfeder 4 mit dem größeren Durchmesser an dem Vorsprung 22 innerhalb der Federaufnahme 24 abstützt. Mit dem Vorsprung 22 und einer geeigneten Dimensionierung der Längen und Federkonstanten der einzelnen Abschnitte der Kontaktfeder 4 kann für beide Kontaktfederenden jeweils eine andere bevorzugte Andruckkraft erzeugt werden.In order to secure the contact spring 4 from falling out, the contact spring 4 has sections with different diameters. The contact spring 4 preferably has a larger diameter at the contact spring end facing the line grid 12 than at the other contact spring end. This larger diameter is adapted to the shape of the spring receptacle 24 of the insulating member 18 such that the contact spring 4 is supported with the larger diameter of the projection 22 within the spring receptacle 24. With the projection 22 and a suitable dimensioning of the lengths and spring constants of the individual sections of the contact spring 4, a different preferred pressure force can be generated in each case for both contact spring ends.

Zur Befestigung des Leitungsgitters 12 werden die sägezahnförmigen Befestigungsmittel 20 in entsprechende Ausnehmungen des Isolationsteils 18 gepresst, wobei die Befestigungsmittel 20 bevorzugt in unmittelbarer Nähe zu der Kontaktfeder 4 angeordnet sind, um eine Durchbiegung des Leitungsgitters 12 zu vermeiden.For attachment of the line grid 12, the sawtooth-shaped fastening means 20 are pressed into corresponding recesses of the insulating part 18, wherein the fastening means 20 are preferably arranged in close proximity to the contact spring 4 in order to avoid a deflection of the line grid 12.

Um eine elektrisch leitende Verbindung zwischen einer elektrischen Baueinheit 2 und einer weiteren elektrischen Einheit herzustellen, weist das Leitungsgitter 12 elektrisch leitende Anschlussflächen 14 auf, zum Kontaktieren der elektrischen Bauteile der elektrischen Baueinheit 2. In diesem Ausführungsbeispiel werden die elektrischen Spulen der Magnetventile mit dem Leadframe 12 über die Anschlussflächen 14 elektrisch kontaktiert.In order to produce an electrically conductive connection between an electrical unit 2 and a further electrical unit, the line grid 12 has electrically conductive pads 14 for contacting the electrical components of the electrical unit 2. In this embodiment, the electric coils of the solenoid valves with the lead frame 12th electrically contacted via the connection surfaces 14.

Die elektrische Verbindung mit einer weiteren elektrischen Einheit 30 erfolgt über eine Kontaktfläche 26, die auf einer Leiterplatte bzw. Platine 28 der weiteren elektrischen Einheit 30 angeordnet ist.The electrical connection with a further electrical unit 30 via a contact surface 26 which is disposed on a printed circuit board or board 28 of the further electrical unit 30.

Bevorzugt weist die Kontaktfläche 26 eine viereckige, kreisförmige, elliptische oder ovale Umfangsgeometrie auf oder eine Kombination dieser genannten Umfangsgeometrien. Bevorzugt überragt die Kontaktfläche 26 den Durchmesser der Kontaktfeder 4. Um eine erhöhte Lagesicherung der Kontaktfeder 4 zu erreichen, kann die Kontaktfläche 26 eine Vertiefung zur Aufnahme der Kontaktfeder 4 aufweisen.Preferably, the contact surface 26 has a quadrangular, circular, elliptical or oval peripheral geometry or a combination of said circumferential geometries. Preferably, the contact surface 26 projects beyond the diameter of the contact spring 4. In order to achieve an increased securing position of the contact spring 4, the contact surface 26 may have a recess for receiving the contact spring 4.

Bevorzugt ist die Kontaktfläche 26 als Oberfläche eines Kontaktplättchens 32 ausgebildet, welches einen ein- oder mehrschichtigen Aufbau aufweist. Ist das Kontaktplättchen 32 als SMD-Bauteil ausgebildet, welches direkt auf Anschlussflächen bzw. Anschlusspads der Platine 28 aufgelötet werden kann, kann für die Anbringung der Kontaktplättchen 32 vorteilhafterweise derselbe Fertigungsprozess, insbesondere das Aufschmelzlötverfahren ("Reflow"-Lötverfahren) genutzt werden, welches auch zum Anlöten der weiteren SMD-Bauteile zum Einsatz kommt.Preferably, the contact surface 26 is formed as the surface of a contact plate 32, which has a single or multilayer structure. If the contact plate 32 is designed as an SMD component, which can be soldered directly onto connection pads or connection pads of the circuit board 28, the same manufacturing process, in particular the reflow soldering method, can advantageously be used for the attachment of the contact plates 32 ("Reflow" soldering) are used, which is also used for soldering the other SMD components.

Um eine zuverlässige Kontaktierung zwischen Kontaktfeder 4 und der gegenüber liegenden Kontaktfläche 26 der weiteren elektrischen Einheit 30 zu gewährleisten, ist das die Kontaktfläche 26 aufweisende Kontaktplättchen 32 wesentlich dicker als die Leiterbahnen der Platine 28 ausgebildet. Insbesondere bei einer Verwendung im Bereich der Fahrzeugtechnik ist die elektrische Baueinheit bzw. Verbindungseinheit starken Vibrationen ausgesetzt, welche zu einem Abrieb des Kontaktmaterials von Kontaktfeder 4 und gegenüber liegenden Kontaktfläche 26 führt.In order to ensure a reliable contact between the contact spring 4 and the opposite contact surface 26 of the further electrical unit 30, the contact surface 26 having contact pad 32 is substantially thicker than the conductor tracks of the board 28 is formed. In particular, when used in the field of vehicle technology, the electrical assembly or connection unit is exposed to strong vibrations, which leads to abrasion of the contact material of contact spring 4 and opposite contact surface 26.

Bevorzugt sind die Kupfer oder Nickel aufweisenden Kontaktplättchen 32 mit einer Silberschicht oder Goldschicht versehen, was vorteilhafterweise zu einer besseren Leitfähigkeit und/oder zu einer erhöhten Abriebresistenz gegenüber der auf der Platine befindlichen Leiterbahnen führt. Dadurch verbessert sich vorteilhafterweise die Kontaktfähigkeit bei einer aufsitzenden Kontaktfeder.Preferably, the copper or nickel-containing contact plates 32 are provided with a silver layer or gold layer, which advantageously leads to a better conductivity and / or to an increased resistance to wear compared to the conductor tracks located on the board. This advantageously improves the contact ability of a seated contact spring.

Fig. 3 zeigt ein Blockschaltbild zur Erläuterung des erfindungsgemäßen Verfahrens zum Herstellen einer elektrischen Baueinheit 2 mit den wesentlichen Phasen der Herstellung. Fig. 3 shows a block diagram for explaining the inventive method for producing an electrical assembly 2 with the essential stages of production.

Zunächst erfolgt eine Layoutphase 34 des erfindungsgemäßen Verfahrens, bei dem die Leitungsstruktur bzw. das Leitungslayout des Leitungsgitters 12 festgelegt wird, um das Leitungsgitter 12 an die zu verbindenden elektrischen Bauteile derart anzupassen, dass die Bauteile elektrisch leitend mit den Anschlussflächen 14 des Leitungsgitters 12 verbunden werden können und gemeinsame Leitungen der elektrischen Bauteile mit dem Leitungsgitter 12 zusammengefasst werden. Dazu wird das Leitungsgitter 12 aus einem Blech ausgestanzt oder mittels Laserschneiden aus einem Blech herausgelöst.First, a layout phase 34 of the method according to the invention takes place in which the line structure or the line layout of the line grid 12 is determined in order to adapt the line grid 12 to the electrical components to be connected in such a way that the components are electrically conductively connected to the connection areas 14 of the line grid 12 can and common lines of the electrical components are combined with the line grid 12. For this purpose, the line grid 12 punched out of a sheet or removed by laser cutting from a sheet.

In einer Verbindungsphase 36 werden die Komponenten der elektrischen Baueinheit 2 zusammengesetzt und die Kontaktfedern 4, 6, 8, 10 elektrisch leitend mit dem Leitungsgitter 12 verbunden. Diese Kontaktfedern 4, 6, 8, 10 bilden dann die elektrischen Anschlusskontakte der elektrischen Baueinheit 2.In a connecting phase 36, the components of the electrical unit 2 are assembled and the contact springs 4, 6, 8, 10 are electrically conductively connected to the line grid 12. These contact springs 4, 6, 8, 10 then form the electrical connection contacts of the electrical unit 2.

Eine Fixierungsphase 38 des erfindungsgemäßen Verfahrens sieht eine Fixierung der Kontaktfedern 4, 6, 8, 10 auf dem Leitungsgitter 12 vor. Die Fixierung erfolgt dabei bevorzugt über ein Isolationsteil 18 mit entsprechenden Federaufnahmen 24 mit denen die Kontaktfedern 4, 6, 8, 10 gehalten werden oder mittels einer Federhalterung.A fixing phase 38 of the method according to the invention provides for a fixation of the contact springs 4, 6, 8, 10 on the line grid 12. The fixation is preferably carried out via an insulating member 18 with corresponding spring mounts 24 with which the contact springs 4, 6, 8, 10 are held or by means of a spring holder.

In einer Trennungsphase 39 werden die Kurzschlussverbindungen auf dem Leitungsgitter 12 durchtrennt. In dieser Trennungsphase 39 erhält das Leitungsgitter 12 somit die notwendige Leitungsstruktur, um eine elektrische Verbindung der elektrischen Bauteile mit einer weiteren elektrischen Einheit 30 herzustellen.In a separation phase 39, the short-circuit connections on the line grid 12 are severed. In this separation phase 39, the line grid 12 thus receives the necessary line structure in order to produce an electrical connection of the electrical components to a further electrical unit 30.

Fig. 4 zeigt eine schematische Darstellung zur detaillierten Erläuterung eines ersten und zweiten Verfahrensschrittes zum Herstellen einer elektrischen Baueinheit 2 gemäß einem Ausführungsbeispiel der Erfindung beispielhaft an zwei Kontaktfedern 4, 6. Fig. 4 shows a schematic representation of the detailed explanation of a first and second method step for producing an electrical assembly 2 according to an embodiment of the invention by way of example to two contact springs 4, 6th

In einem ersten Verfahrensschritt 40 wird das Isolationsteil 18 in eine Montagehalterung 42 eingesetzt. Dabei ist das Isolationsteil 18 derart ausgerichtet, dass die Federaufnahmen 24 mit ihrer größten Querschnittsöffnung aus der Montagehalterung 42 herauszeigen.In a first method step 40, the insulating part 18 is inserted into a mounting bracket 42. In this case, the insulating member 18 is oriented such that the spring receivers 24 point out with its largest cross-sectional opening of the mounting bracket 42.

In einem zweiten Verfahrensschritt 44 werden die Kontaktfedern 4, 6 in die Federaufnahmen 24 eingesetzt. Bevorzugt werden die Kontaktfedern 4, 6 mit ihren Kontaktfederende mit dem kleineren Durchmesser in die Federaufnahme 24 eingesetzt, damit sich die Kontaktfedern 4, 6 mit ihrem größeren Durchmesser an dem Vorsprung 22 abstützen können.In a second method step 44, the contact springs 4, 6 are inserted into the spring receptacles 24. Preferably, the contact springs 4, 6 are used with their contact spring end with the smaller diameter in the spring receptacle 24 so that the contact springs 4, 6 can be supported with its larger diameter on the projection 22.

In Fig. 4 ist zudem angedeutet, dass das Leitungsgitter 12 mit den nach unten weisenden Befestigungsmitteln 20 und den Anschlussflächen 14 auf die Kontaktfedern 4, 6 gesetzt wird.In Fig. 4 is also indicated that the line grid 12 is set with the downwardly facing fasteners 20 and the pads 14 on the contact springs 4, 6.

Fig. 5 zeigt eine schematische Darstellung zur detaillierten Erläuterung des dritten, vierten und fünften Verfahrensschrittes zum Herstellen einer elektrischen Baueinheit 2 gemäß einem Ausführungsbeispiel der Erfindung beispielhaft an zwei Kontaktfedern 4, 6. Fig. 5 shows a schematic representation of the detailed explanation of the third, fourth and fifth method step for producing an electrical assembly 2 according to an embodiment of the invention by way of example to two contact springs 4, 6.

Anknüpfend an Fig. 4 ist in Fig. 5 in einem dritten Verfahrensschritt 46 das Leitungsgitter 12 in das Isolationsteil 18 hineingepresst und durch die Befestigungsmittel 20 fest mit dem Isolationsteil 18 verbunden.Building on Fig. 4 is in Fig. 5 in a third method step 46, the line grid 12 is pressed into the insulation part 18 and fixedly connected to the insulation part 18 by the fastening means 20.

In einem vierten Verfahrensschritt 48 wird die elektrische Verbindung der Kontaktfedern 4, 6 mit dem Leitungsgitter 12 überprüft, indem eine Kontrolleinheit 50 einen ersten elektrisch leitenden Kontakt 52 mit dem Leitungsgitter 12 verbindet und jeweils einen zweiten elektrischen Kontakt 54 mit der Kontaktfeder 4, 6.In a fourth method step 48, the electrical connection of the contact springs 4, 6 is checked with the line grid 12 by a control unit 50 connects a first electrically conductive contact 52 with the line grid 12 and a second electrical contact 54 with the contact spring 4, 6th

Mit einem fünften Verfahrensschritt 56 werden die Kurzschlussverbindungen auf dem Leitungsgitter 12 durchtrennt. Dadurch erhält das Leitungsgitter 12 die zur elektrischen Verbindung der elektrischen Bauteile, wie z.B. Magnetventile, mit einer weiteren elektrischen Einheit 30, wie z.B. Steuereinheit, notwendige Leitungsstruktur.In a fifth method step 56, the short-circuit connections on the line grid 12 are severed. As a result, the line grid 12 receives the necessary for electrical connection of the electrical components, such as solenoid valves, with another electrical unit 30, such as control unit, line structure.

Die fertig montierte elektrische Baueinheit 2 kann anschließend aus der Montagehalterung 42 entnommen werden und durch Aufsetzen einer weiteren Einheit 30 elektrisch mit dieser verbunden werden.The fully assembled electrical unit 2 can then be removed from the mounting bracket 42 and electrically connected by placing a further unit 30 thereto.

Sämtliche in der vorstehenden Beschreibung sowie in den Ansprüchen genannten Merkmale sind sowohl einzeln als auch in beliebiger Kombination mit den Merkmalen der unabhängigen Ansprüche kombinierbar. Die Offenbarung der Erfindung ist daher nicht auf die beschriebenen bzw. beanspruchten Merkmalskombinationen beschränkt. Vielmehr sind alle im Rahmen der Erfindung sinnvollen Merkmalskombinationen als offenbart zu betrachten.All mentioned in the foregoing description and in the claims characteristics can be combined both individually and in any combination with the features of the independent claims. The disclosure of the invention is therefore not limited to the described or claimed feature combinations. Rather, all in the context of the invention meaningful combinations of features are to be regarded as disclosed.

Claims (15)

Elektrische Baueinheit mit mindestens zwei elektrischen Bauteilen und mindestens drei elektrisch leitenden Anschlusskontakten, mittels der die elektrische Baueinheit (2) mit einer weiteren elektrischen Einheit (30) elektrisch leitend verbindbar ist, wobei die elektrischen Anschlusskontakte über ein Leitungsgitter (12) elektrisch leitend mit den mindestens zwei elektrischen Bauteilen verbunden sind, dadurch gekennzeichnet, dass
die elektrisch leitenden Anschlusskontakte als elektrisch leitende Kontaktfedern (4, 6, 8, 10) ausgebildet sind,
gemeinsame elektrische Leitungen (16) der mindestens zwei elektrischen Bauteile mittels des Leitungsgitters (12) elektrisch leitend zusammengefasst sind, wobei diese gemeinsamen elektrischen Leitungen (16) eine oder mehrere gemeinsame elektrisch leitende Kontaktfedern (4) aufweisen.Electrical assembly having at least two electrical components and at least three electrically conductive connection contacts, by means of which the electrical assembly (2) with another electrical unit (30) is electrically conductively connected, wherein the electrical connection contacts via a line grid (12) electrically conductive with the at least two electrical components are connected, characterized in that
the electrically conductive connection contacts are designed as electrically conductive contact springs (4, 6, 8, 10),
common electrical lines (16) of the at least two electrical components by means of the line grid (12) are electrically conductively combined, said common electrical lines (16) having one or more common electrically conductive contact springs (4). Elektrische Baueinheit nach Anspruch 1,
dadurch gekennzeichnet, dass
das Leitungsgitter (12) elektrisch leitende Anschlussflächen (14) aufweist, wobei die Anschlussflächen (14) derart ausgebildet sind, um eine elektrisch leitende Verbindung mit den elektrischen Bauteilen zu bilden.Electrical unit according to claim 1,
characterized in that
the line grid (12) has electrically conductive pads (14), wherein the pads (14) are formed so as to form an electrically conductive connection with the electrical components. Elektrische Baueinheit nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
die Kontaktfedern (4, 6, 8, 10) in einem Isolationsteil (18) angeordnet sind.Electrical unit according to claim 1 or 2,
characterized in that
the contact springs (4, 6, 8, 10) are arranged in an insulating part (18). Elektrische Baueinheit nach Anspruch 3,
dadurch gekennzeichnet, dass
das Isolationsteil (18) mittels Befestigungsmittel (20) am Leitungsgitter (12) befestigt ist.Electrical assembly according to claim 3,
characterized in that
the insulating part (18) by means of fastening means (20) is attached to the line grid (12). Elektrische Baueinheit nach Anspruch 4,
dadurch gekennzeichnet, dass
die Befestigungsmittel (20) sägezahnförmig ausgebildet sind.Electrical unit according to claim 4,
characterized in that
the fastening means (20) are sawtooth-shaped. Elektrische Baueinheit nach einem der Ansprüche 3 bis 5,
dadurch gekennzeichnet, dass
das Isolationsteil (18) eine Federaufnahme (24) aufweist, wobei diese Federaufnahme (24) mindestens eine Querschnittsverjüngung aufweist, welche als ein in die Federaufnahme (24) hineinragender Vorsprung (22) ausgebildet ist.Electrical unit according to one of claims 3 to 5,
characterized in that
the insulating part (18) has a spring receiver (24), wherein this spring receiver (24) has at least one cross-sectional taper, which is designed as a projection (22) projecting into the spring receiver (24). Elektrische Baueinheit nach Anspruch 6,
dadurch gekennzeichnet, dass
die Kontaktfeder (4, 6, 8, 10) derart ausgebildet ist, dass die Kontaktfeder (4, 6, 8, 10) der Form der Federaufnahme (24) angepasst ist.Electrical assembly according to claim 6,
characterized in that
the contact spring (4, 6, 8, 10) is designed such that the contact spring (4, 6, 8, 10) is adapted to the shape of the spring receptacle (24). Elektrische Baueinheit nach einem der Ansprüche 3 bis 7,
dadurch gekennzeichnet, dass
das Isolationsteil (18) mindestens einen Stützvorsprung aufweist, welcher derart ausgebildet ist, um das Isolationsteil (18) gegen die elektrischen Bauteile abzustürzen.Electrical unit according to one of claims 3 to 7,
characterized in that
the insulating part (18) has at least one supporting projection which is designed in such a way as to crash the insulating part (18) against the electrical components. Elektrische Baueinheit nach einem der Ansprüche 3 bis 8,
dadurch gekennzeichnet, dass
das Isolationsteil (18) das Leitungsgitter (12) bedeckt.Electrical unit according to one of claims 3 to 8,
characterized in that
the insulating member (18) covers the wiring grid (12). Elektrische Baueinheit nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
die Kontaktfedern (4, 6, 8, 10) mittels einer Federhalterung auf dem Leitungsgitter (12) fixiert sind.Electrical unit according to claim 1 or 2,
characterized in that
the contact springs (4, 6, 8, 10) are fixed by means of a spring holder on the line grid (12). Verbindungseinheit mit mindestens einer elektrischen Baueinheit (2) und mindestens einer weiteren elektrischen Einheit (30),
dadurch gekennzeichnet, dass
die elektrische Baueinheit (2) nach einem der Ansprüche 1 bis10 ausgebildet ist und die elektrische Baueinheit (2) eine elektrisch leitende Verbindung mit der weiteren elektrischen Einheit (30) eingeht.Connection unit with at least one electrical component (2) and at least one further electrical unit (30),
characterized in that
the electrical assembly (2) according to any one of claims 1 to 10 is formed and the electrical assembly (2) enters into an electrically conductive connection with the further electrical unit (30). Verbindungseinheit nach Anspruch 11,
dadurch gekennzeichnet, dass
die weitere elektrische Einheit (30) Kontaktflächen (26) aufweist, welche derart ausgebildet sind, um mit den elektrisch leitenden Kontaktfedern (4, 6, 8, 10) der elektrischen Baueinheit (2) eine leitende elektrische Verbindung einzugehen.Connection unit according to claim 11,
characterized in that
the further electrical unit (30) has contact surfaces (26) which are designed to enter into a conductive electrical connection with the electrically conductive contact springs (4, 6, 8, 10) of the electrical unit (2). Fahrzeug,
gekennzeichnet durch
mindestens eine elektrische Baueinheit (2) nach einem der Ansprüche 1 bis10 und/oder
mindestens eine Verbindungseinheit nach einem der Ansprüche 11 und 12.Vehicle,
marked by
at least one electrical unit (2) according to one of claims 1 to 10 and / or
at least one connection unit according to one of claims 11 and 12. Verfahren zum Herstellen einer elektrischen Baueinheit (2) mit mindestens zwei elektrischen Bauteilen und mindestens drei elektrisch leitenden Anschlusskontakten, mittels der die elektrische Baueinheit (2) mit einer weiteren elektrischen Einheit (30) elektrisch leitend verbindbar ist, wobei die elektrisch leitenden Anschlusskontakte über ein Leitungsgitter (12) elektrisch leitend mit den mindestens zwei elektrischen Bauteilen verbunden sind,
dadurch gekennzeichnet, dass
die elektrisch leitenden Anschlusskontakte als elektrisch leitende Kontaktfedern (4, 6, 8, 10) ausgebildet sind,
gemeinsame elektrische Leitungen (16) der mindestens zwei elektrischen Bauteile mittels des Leitungsgitters (12) elektrisch leitend zusammengefasst werden und
diese gemeinsamen elektrischen Leitungen (16) der mindestens zwei elektrischen Bauteile mit einer oder mehreren gemeinsamen elektrisch leitenden Kontaktfedern (4) elektrisch leitend verbunden werden.Method for producing an electrical component (2) having at least two electrical components and at least three electrically conductive connection contacts, by means of which the electrical assembly (2) with another electrical unit (30) is electrically conductively connected, wherein the electrically conductive connection contacts via a wire grid (12) are electrically conductively connected to the at least two electrical components,
characterized in that
the electrically conductive connection contacts are designed as electrically conductive contact springs (4, 6, 8, 10),
common electrical lines (16) of the at least two electrical components by means of the line grid (12) are combined electrically conductive and
these common electrical lines (16) of the at least two electrical components with one or more common electrically conductive contact springs (4) are electrically connected. Verfahren nach Anspruch 14,
dadurch gekennzeichnet, dass
das Verfahren folgende Schritte aufweist: 1. Einfügen eines Isolationsteils in eine Montagehalterung (40), 2. Einfügen der Kontaktfedern in das Isolationsteil (44), 3. Einpressen des Leitungsgitters in das Isolationsteil (46), 4. Kontrollieren der elektrischen Verbindung der eingefügten Kontaktfedern (48), 5. Durchtrennen von Kurzschlussbrücken des Leitungsgitters (56). Method according to claim 14,
characterized in that
the method comprises the following steps: 1. inserting an insulating part in a mounting bracket (40), 2. inserting the contact springs into the insulating part (44), 3. Pressing the cable grid into the insulating part (46), 4. checking the electrical connection of the inserted contact springs (48), 5. Cutting through short-circuiting bridges of the cable grid (56).
EP16174232.5A 2015-06-27 2016-06-13 Electrical component, connection unit with at least one electrical component, vehicle using the same, and method for producing an electrical component Active EP3109951B1 (en)

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DE102015008334.1A DE102015008334A1 (en) 2015-06-27 2015-06-27 Electrical unit, connection unit with at least one electrical unit, vehicle with it and method for producing an electrical unit.

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DE102018123993B4 (en) 2018-09-28 2022-05-25 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Contacting device for electrically contacting a current-carrying device with a module for a vehicle system for a vehicle, contacting device with a contacting device and method for producing a contacting device
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DE102015008334A1 (en) 2016-12-29
EP3109951B1 (en) 2019-02-20

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