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
  • H05K1/00—Printed circuits
  • H05K1/02—Details
  • H05K1/09—Use of materials for the conductive, e.g. metallic pattern
• • 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
  • H05K5/0078—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units specially adapted for acceleration sensors, e.g. crash sensors, airbag sensors
• • 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
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
  • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
  • F16H61/0006—Electronic control units for transmission control, e.g. connectors, casings or circuit boards

Definitions

• the present invention relates to a transmission control module for a motor vehicle. Furthermore, the invention relates to the use of a printed circuit board in a motor vehicle.
• electrical circuits are used in a variety of ways, for example for controlling vehicle components, such as vehicle components. an automatic transmission.
• electrical components such as resistors, diodes, transistors, ICs, etc. are interconnected.
• conductor tracks are usually used, which electrically connect the components to one another.
• the components can be arranged on a circuit carrier such as a printed circuit board, wherein the conductor tracks are part of the circuit substrate.
• DE 10 2009 00 427 AI shows a transmission control module in which a circuit carrier is protected by means of a media-resistant enclosure against aggressive fluids.
• the present invention in its embodiments, makes it possible to provide a transmission control module, which advantageously directly into a motor vehicle transmission can be integrated and are exposed to the tracks no degradation by aggressive fluids.
• the present invention allows a use of a printed circuit board in a motor vehicle, in particular in a motor vehicle transmission, wherein printed conductors of the printed circuit board are not subject to degradation by aggressive fluids.
• Transmission control module proposed in which electrical components for implementing a transmission control function are electrically interconnected.
• the electrical interconnection is carried out by means of conductor tracks, which are provided on a printed circuit board.
• the conductor tracks consist essentially of a different electrically conductive material than copper.
• Printed circuit board has conductor tracks for electrical interconnection of electrical components and the conductor paths consist essentially of a different electrically conductive material than copper.
• Transmission control module is arranged such that the transmission control module can be integrated in a vehicle transmission such that the interconnects with a Gear fluid come into contact, proposed that the interconnects consist essentially of a different electrically conductive material than copper.
• the interconnects should essentially not contain any copper, ie be low in copper or preferably copper-free.
• "essentially” can be understood to mean that the interconnects contain as much copper as possible so that the interconnects remain functional even if the copper portion is completely removed
• the circuit board including the components and conductors can be used, for example, in the harsh conditions of a vehicle transmission, without areas of the circuit board or the interconnects, for example, by a cover or encapsulation would need to be protected from contact with aggressive fluid from the transmission.
• the circuit board can be designed as a simple or multilayer printed circuit board and thus the entire transmission control module as simple and inexpensive to produce electrical
• Circuit can be formed using the large-scale industrially manageable circuit board technology. Only the printed conductors of such a printed circuit board are formed here with other materials instead of the conventionally used copper in order to form a printed circuit board with sufficient current carrying capacity
• the conductor tracks can be formed with an electrically conductive plastic and preferably consist predominantly of an electrically conductive plastic.
• a conductor made of an electrically conductive plastic and preferably a proportion of other materials such as copper in particular is so low that a loss of these materials or the copper, for example Corrosion does not lead to a significant impairment of the function of the circuit board.
• electrically conductive plastics for example, highly filled plastics can be used, wherein the filler can usually consist of nickel or silver and the plastic can be Epoxydharzsysteme or silicones. Alternatively, tinned copper flakes can be used as filler. As a matrix for the filler can continue to serve thermoplastics such as polyamide.
• Such electrically conductive plastics can have a high chemical resistance and high adhesive forces.
• the electrically conductive plastic can in this case have a specific electrical conductivity of at least 10.sup.- 4 .OMEGA.cm.
• the conductor tracks may consist predominantly of a metal or a metal
• the conductor tracks may be formed predominantly of nickel, gold, tin, silver and / or palladium. Due to their very high electrical conductivity, silver and gold can be of interest in particular for applications requiring a high current carrying capacity. Although nickel and tin have a lower conductivity, but are clear
• the transmission control module may include a printed circuit board having a plurality of tracks running in different planes.
• Such multilayer printed circuit boards enable complex interconnection structures between electrical components, wherein interconnects that run in different planes can also cross in plan view, without causing short circuits.
• such multi-layered printed circuit board In the proposed transmission control module, such multi-layered
• Printed circuit boards in particular be designed such that at least outer conductor tracks of the multilayer printed circuit board substantially consist of a different material than copper.
• the outer conductor tracks which come into contact with aggressive fluids during use in the motor vehicle transmission, are therefore not subject to degradation due to a chemical attack of copper contained in the conductor tracks.
• the internal conductor tracks of the printed circuit board which do not directly come into contact with the aggressive fluids, can be conventional conductor tracks made of copper or, like the outer conductor tracks, also essentially copper-free.
• the present invention provides the ability to work in the
• Substantial PCB technology for implementing a transmission control module and its use in aggressive fluids such as oils of a gearbox. In this case, no coverage or encapsulation of the tracks is needed.
• a cost-effective alternative to gearbox controls based on stamped bars is offered.
• a low-cost technology for small batches is made possible. As a result, a shortening of development times, in particular, for example, in the production of patterns, and a saving of tooling costs can be made possible.
• transmission control module is to be interpreted broadly and is intended to include in particular all electrical circuits which are integrated in one
• Motor vehicle for controlling a transmission in particular an automatic transmission, are used, such.
• FIG. 1 shows a plan view of a transmission control module according to FIG. 1
• Figure 2 shows a sectional view of a multilayer printed circuit board for a
• Transmission control module according to an embodiment of the present invention.
• the figures are only schematic and not to scale.
• FIG. 1 shows a very schematically illustrated transmission control module 1, which is designed to control an automatic transmission of a motor vehicle.
• a transmission control module 1 which is designed to control an automatic transmission of a motor vehicle.
• the electrical components 7, 9, 11 are electrically interconnected by interconnects 5.
• interconnects 5 For electrical contact with other devices within the motor vehicle connections 13 are provided.
• openings are provided at the corners of the circuit board to which the circuit board 3 can be screwed for example inside a gear housing.
• the printed circuit board 3 or board or printed circuit (English: Printed Circuit
• the printed circuit board serves as a carrier both for mechanical attachment of the components 7, 9, 11 as well as for their electrical connection by means of the conductor tracks 5.
• the printed circuit board of an electrically insulating material having adhered thereto conductive connections to form the conductor tracks be designed.
• insulating material for example, fiber-reinforced plastic can be used.
• pads typically on solder pads, so-called pads, or pads by
• solder joints held can also be mechanically attached to the circuit board in other ways and electrically connected to this.
• electrically conductive adhesives can be used.
• the interconnects 5 have electrically conductive material, but in the
• the tracks 5 may be e.g. made of electrically conductive plastic or other
• Metals such as e.g. Nickel, gold, tin, silver or palladium or combinations of such metals.
• FIG. 2 shows a cross section of a printed circuit board 3 in the form of a multilayer printed circuit board.
• a stack 55 in which several boards are stacked one above the other, printed conductors 51, 52, 53 are formed in different levels. Outside of the stack 55 are outer conductor tracks 5 and exposed to the outside Contacts 13 are provided.
• the stack 55 is wrapped by insulating material 15 such as a solder resist. At least the outer conductor tracks 5 consist of a copper-poor or copper-free material.

Landscapes

• Engineering & Computer Science (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Control Of Transmission Device (AREA)
• Structure Of Printed Boards (AREA)
• Parts Printed On Printed Circuit Boards (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=47557051

Family Applications (1)

Country Status (5)

Families Citing this family (1)

Family Cites Families (10)

• 2012
  • 2012-01-24 DE DE201210201014 patent/DE102012201014A1/de not_active Withdrawn
  • 2012-12-18 EP EP12813807.0A patent/EP2807405A1/de not_active Withdrawn
  • 2012-12-18 WO PCT/EP2012/075949 patent/WO2013110416A1/de active Application Filing
  • 2012-12-18 KR KR1020147020480A patent/KR20140124363A/ko not_active Application Discontinuation
  • 2012-12-18 CN CN201280067856.XA patent/CN104067030B/zh not_active Expired - Fee Related

Non-Patent Citations (2)

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