EP3039950A1 - Nouveau type de connexion d'un circuit imprimé souple au boîtier d'un appareil de commande - Google Patents

Nouveau type de connexion d'un circuit imprimé souple au boîtier d'un appareil de commande

Info

Publication number
EP3039950A1
EP3039950A1 EP14748184.0A EP14748184A EP3039950A1 EP 3039950 A1 EP3039950 A1 EP 3039950A1 EP 14748184 A EP14748184 A EP 14748184A EP 3039950 A1 EP3039950 A1 EP 3039950A1
Authority
EP
European Patent Office
Prior art keywords
housing
circuit board
arrangement according
thickening
conductive
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.)
Withdrawn
Application number
EP14748184.0A
Other languages
German (de)
English (en)
Inventor
Gerhard Wetzel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3039950A1 publication Critical patent/EP3039950A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0082—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units specially adapted for transmission control units, e.g. gearbox controllers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/62—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0256—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for soldering or welding connectors to a printed circuit board
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0221—Laser welding
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
    • H05K2201/0969—Apertured conductors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/1031—Surface mounted metallic connector elements
    • H05K2201/10318—Surface mounted metallic pins
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/10—Using electric, magnetic and electromagnetic fields; Using laser light
    • H05K2203/107—Using laser light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/328—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by welding

Definitions

  • the present invention relates to connection technology in vehicles.
  • the present invention relates to controller interfacing technology. Further particularly, the present invention relates to a housing assembly for a control unit, a transmission and a vehicle, in particular automobile.
  • control devices can also be arranged, for example, in the interior of transmissions, thus in the transmission unit itself.
  • Electronic modules for operation in the transmission are usually arranged such that they are housed in or at least partially in the transmission oil and in communication with this. So that on the one hand the high temperatures in the gearbox, on the other hand the aggressive
  • ECU housings which are usually formed of a steel bottom plate and a tightly welded to this base plate steel lid. Electrically conductive connections from the interior of the control module to the outside are usually provided by glazed conductive elements or pins, which allow a gas-tight, insulated contacting from the dense interior to the outside.
  • the conductive elements are usually designed as a pin or cylindrical pins, but these pins can also have the shape of nail heads.
  • a substantially cylindrical pin is provided with a thickening at one end, wherein the thickening is arranged in the interior of the housing to an enlarged contact surface for the electric provide conductive connection of located in the interior of the control module electronic components.
  • Such a nail-head form of pins allows, for example, the multiple bonding to a single pin, thus the parallel connection and thus increasing the current carrying capacity of a conductive connection of an electronic component to a pin.
  • Such electronic control modules are on the outside or in
  • Exterior usually conductively connected using a stamped grid.
  • the external connection is to be realized using a flexible printed circuit board (Flexible Printed Circuit Board - FPC), in this case usually the guided outward guide elements are inserted through openings in the FPC and subsequently soldered.
  • the individual pins can have relatively large positional tolerances due to the glazing, and thus the openings in the FPC must be made comparatively large, so that insertion / insertion of the pins through the openings of the FCP is still possible.
  • the solder of the solder joint may have to bridge a comparatively large gap between pins and FPC, which gap, however, is potentially unfavorable for the strength and quality of the solder joint.
  • Solder joints are in this context only expensive and difficult to check for their quality, for example in terms of cracks and cold solder joints, whereby the application of the solder an additional operation is costly.
  • One aspect of the present invention may be seen to provide a novel connection of a flexible circuit board to a controller housing.
  • a housing assembly for a control device, a transmission comprising a housing assembly according to the invention and a vehicle, in particular automobile, provided according to the independent claims.
  • a conductive element that surrounds the interior of the housing assembly according to the invention and a vehicle, in particular automobile, provided according to the independent claims.
  • Controller housing connects to an outdoor area, as an elongated element or cylindrical member or cylindrical pin executed with a thickening at least one end of the conductive element, in particular having a nail head shape, but the thickening or the head is arranged in the outer region of the housing element.
  • the conductive element thus has an enlarged support or contact surface, to which a flexible printed circuit board can be connected.
  • a hermetically sealed control unit can be suitably contacted with a flexible printed circuit board, for example using a welded connection, alternatively also as a
  • the contact between flexible printed circuit board and conductive element, in particular its thickening, can be designed so that a flexible printed circuit board can be used with unilateral access without stripping processes and thus a cost-effective and robust
  • a unilateral access is to be understood in such a way that the substantially elongated or areally formed flexible printed circuit board is formed insulated only on one side, in particular on the side with which the flexible printed circuit board is connected to the conductive element, not or at least is formed in the region of the conductive elements is not isolated.
  • a welded joint can subsequently be quickly, force-free and reliable, e.g. take place by means of laser welding, in which case preferably the laser beam couples to the contact pin or the thickening of the conductive element and not to the conductive material of the flexible printed circuit board, for example their
  • the conductive elements of the housing assembly may be constructed of a nickel-iron alloy (NiFe), whereby thermal expansion coefficients of the conductive element and the
  • glass material used for glazing are similar.
  • Coupling a laser beam on iron or on a nickel / iron alloy may be much better possible compared to a coupling in copper materials, which may improve the quality and robustness of a weld.
  • the use of a flexible printed circuit board allows the flexible contacting of a control unit.
  • the flexible printed circuit board can be designed, for example, in the form of a strip and, because of its flexibility, also contact over edges of the control device. Preference is given to a separation between mechanical
  • Housing arrangement for example, the pins or the glazing, during the manufacture of the contact between the conductive element and flexible circuit board according to the invention and in regular operation reduced or avoided, so that damage to the glazing, for example by cracks, and thus a leak of the control unit is avoided.
  • the housing arrangement achieves a comparatively cost-effective solution with a reduced or reduced overall height.
  • Fig. 1 is a plan view of an exemplary embodiment of a
  • FIG. 2 shows a detailed representation of the partial section A-A of FIG. 1;
  • FIG. 3 shows an exemplary assembly sequence of a control device according to the present invention.
  • FIG. 4 shows a detailed representation of a connection of conductive elements to a flexible printed circuit board according to the present invention.
  • FIG. 1 shows a perspective view of a housing arrangement 1 for a control unit, comprising a base plate 2 and a cover element 3, which is tightly, in particular hermetically sealed, welded to the base plate 2.
  • Control unit can be connected to the outside through at least one flexible circuit board 4 with, in Figure 1, not shown, sensors, plugs and the like can be contacted.
  • Flexible circuit board 4 is advantageously realized with a plurality of individual parts or sections 4a-e, so that a cost-effective implementation is possible and can be discussed below also on the space requirements of a particular transmission application.
  • Pieces 4a-e of the flexible circuit board 4 are advantageously realized with a plurality of individual parts or sections 4a-e, so that a cost-effective implementation is possible and can be discussed below also on the space requirements of a particular transmission application.
  • Circuit board 4 are mechanically connected by using pin 21 with the base plate 2 of the housing assembly 1 of the control unit.
  • cover 3 possibly arranged under cover 3 in the interior of the housing assembly electronic module 10,11 which is connected using conductive elements 6 or pins to the flexible circuit boards 4, is hidden due to the non-transparent design of the cover 3 in Figure 1.
  • FIG. 2 a detailed representation of the partial section A - A of FIG. 1 is shown.
  • FIG. 1 illustrates the partial section A-A of Figure 1 by the contact pin 6 of
  • Control unit dar Base plate 2 and cover 3 are sealed at location 5 tightly welded together.
  • Pin 6 is insulating in base plate 2 and held tightly, for example by glazing 7, and has a nail head shape 8.
  • Nagelkopfform means here a conversion as a substantially elongated or cylindrical body with a thickening at one end.
  • the nail head 8 is not arranged in the hermetically sealed interior 9, but facing outwards or in the outer region 31 of the housing element 1.
  • circuit carrier 10 In the interior 9 of the housing element 1 circuit carrier 10 is provided with electronic components 11 and fixed on the base plate 2, for example, glued. Circuit carrier 10 is at least one location using an electrically conductive connection 12, for example one
  • Thickening 8 of the conductive element 6 and the nail head 8 of the contact pin 6 is a flexible circuit board 4 placed such that the access through an insulation, such as cover sheet 13, in the direction of the nail head 8 shows.
  • the access opening 14 is larger, in particular slightly larger than that
  • Flexible printed circuit board 4 lies with its electrically conductive layer 15,
  • Another insulating layer, base film 16 covers the conductive layer 15 of the flexible printed circuit board 4. Through the base film 16 and the conductive layer 15 may be introduced within the access opening 14, an opening 17, for example, punched, which allows direct access from the outside to the nail head 8 and its surface.
  • laser beam 23 is used, which is directed through the opening 17 of the flexible printed circuit board 4 on the nail head 8 and coupled there. This melts the
  • the conductive layer 15 is heated.
  • copper has a lower melting temperature than, for example, the material of the pin 6, for example a
  • Nickel / iron alloy there is the melting or a diffusion process of
  • Nail head 8 and conductive layer 15 The electrical contact or
  • connection between the conductive member 6 and the conductive layer 15 is thus provided by a fusion welding.
  • the control unit can also contact electrical conductors which carry very high currents, which would potentially exceed the performance of a flexible printed circuit board 4.
  • individual pins 6 can be welded to stamped lanes or the like.
  • the pins 6 can also have a thickening or a nail head on both sides or both ends of the elongate element, which can preferably also be provided or molded after the pin has been mounted, for example after being inserted.
  • an electrically conductive substrate can lead to circuit carriers
  • pin 6 or nail head 8 with a solder deposit, for example by means of paste printing, wherein the laser subsequently couples directly to the solder through the opening 17, heats the latter and thereby solder joint between conductive layer 15 and nail head 8 manufactures.
  • a Cover member 24 is plugged as an insulating element on the pins 19 and 20 and optionally riveted by Warmverstemmung, which covers cover 24 openings 17 and thus closes.
  • support member 18 may be configured such that pins 6 are each with their needle heads 8 in an opening 27, which forms an insulating portion 28 between the pins 6.
  • Heat dissipation element 25 be connected to the base plate 2.
  • Heat dissipation element 25 may preferably be prefixed by rigid or also resiliently configured projections 26 on the cover 24. By fixing or pressing the entire control unit in the gearbox on a metallic surface, for example, the hydraulic control block, the heat dissipation of device 11 may be ensured via circuit substrate 10, base plate 2 and heat sink 25 to the hydraulic control block by means of heat conduction.
  • FIG. 1 An assembly procedure is shown in FIG.
  • the applied to the support members 18, for example, glued, flexible circuit board 4 is inserted with pins 21 through holes 22.
  • pin 21 are positively connected, for example, riveted.
  • the flexible printed circuit board 4 comes to lie with its openings 17 on the needle heads 8.
  • the welding can be carried out with laser beam 23 as shown in FIG. After welding, cover member 24 is mounted, which isolates the openings 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Structure Of Printed Boards (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

L'invention concerne un ensemble boîtier (30), destiné à un appareil de commande, qui comprend un élément de boîtier (1) possédant un espace intérieur (9) et une zone extérieure (31). Au moins un composant électronique (11) de l'appareil de commande peut être disposé dans l'espace intérieur (9). L'élément de boîtier (1) comporte au moins un élément conducteur (6) qui relie l'espace intérieur (9) de manière conductrice à la zone extérieure (31). L'élément conducteur (6) est réalisé sous la forme d'un élément oblong qui possède un épaississement (8) au moins à une extrémité de l'élément conducteur, en particulier en forme de tête de clou (8). L'invention est caractérisée en ce que l'épaississement (8) est disposé dans la zone extérieure (31) de l'élément de boîtier (1).
EP14748184.0A 2013-08-30 2014-08-01 Nouveau type de connexion d'un circuit imprimé souple au boîtier d'un appareil de commande Withdrawn EP3039950A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310217363 DE102013217363A1 (de) 2013-08-30 2013-08-30 Neuartige Anbindung einer flexiblen Leiterplatte an ein Steuergerätegehäuse
PCT/EP2014/066648 WO2015028254A1 (fr) 2013-08-30 2014-08-01 Nouveau type de connexion d'un circuit imprimé souple au boîtier d'un appareil de commande

Publications (1)

Publication Number Publication Date
EP3039950A1 true EP3039950A1 (fr) 2016-07-06

Family

ID=51298744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14748184.0A Withdrawn EP3039950A1 (fr) 2013-08-30 2014-08-01 Nouveau type de connexion d'un circuit imprimé souple au boîtier d'un appareil de commande

Country Status (5)

Country Link
EP (1) EP3039950A1 (fr)
KR (1) KR20160048791A (fr)
CN (1) CN105474763A (fr)
DE (1) DE102013217363A1 (fr)
WO (1) WO2015028254A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017115047A1 (de) * 2017-07-05 2019-01-10 Huf Hülsbeck & Fürst Gmbh & Co. Kg Elektronikeinheit für einen Sensor, Fahrzeug sowie Herstellverfahren zum Herstellen einer Elektronikeinheit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19505180A1 (de) * 1995-02-16 1996-08-22 Telefunken Microelectron Elektronisches Steuermodul
US6623283B1 (en) * 2000-03-08 2003-09-23 Autosplice, Inc. Connector with base having channels to facilitate surface mount solder attachment
DE10260242A1 (de) * 2002-12-20 2004-07-22 Siemens Ag Schaltungsmodul für Kraftfahrzeuge
DE102005046826A1 (de) * 2005-09-29 2007-04-05 Robert Bosch Gmbh Steuergerät, insbesondere für ein Kraftfahrzeuggetriebe
DE102007061116A1 (de) * 2007-12-19 2009-06-25 Robert Bosch Gmbh Steuergerätegehäuse
JP4613237B2 (ja) * 2008-12-10 2011-01-12 新光電気工業株式会社 リードピン付配線基板及びリードピン
DE102010030170A1 (de) * 2010-06-16 2011-12-22 Robert Bosch Gmbh Steuergerät
DE102011017747A1 (de) * 2011-04-29 2012-10-31 Zf Friedrichshafen Ag Steuergerät, Steuersystem und Verfahren zum Verbinden eines Steuergeräts für ein Getriebe eines Fahrzeugs mit weiteren Getriebesteuerungselementen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015028254A1 *

Also Published As

Publication number Publication date
KR20160048791A (ko) 2016-05-04
WO2015028254A1 (fr) 2015-03-05
DE102013217363A1 (de) 2015-03-05
CN105474763A (zh) 2016-04-06

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