EP3080817A1 - Verwendung von metallischen verbindungsleitungen in einem steuergerät - Google Patents
Verwendung von metallischen verbindungsleitungen in einem steuergerätInfo
- Publication number
- EP3080817A1 EP3080817A1 EP14806231.8A EP14806231A EP3080817A1 EP 3080817 A1 EP3080817 A1 EP 3080817A1 EP 14806231 A EP14806231 A EP 14806231A EP 3080817 A1 EP3080817 A1 EP 3080817A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- metallic connecting
- connecting line
- control unit
- plastic
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
Definitions
- the invention relates to a use of a metallic connecting line in a control device for a motor vehicle according to the preamble of claim 1.
- the control units usually contain a plurality of electronic components, which are surrounded by a housing made of plastic and / or metal.
- the electronic components in the control unit housing are in particular electrically connected to components such as sensors or actuators outside the housing by means of metallic connecting lines signal or energy transmitting.
- These metallic connecting cables are often designed as cabling, as flex foil or as a stamped grid. They consist predominantly of highly electrically conductive copper materials or copper alloys with different proportions of alloy.
- the copper alloys are typically copper with one or more companion metals, e.g. Tin, zinc, iron, aluminum, nickel, manganese, silicon, chromium, titanium, lead with a total alloying fraction of less than about 10 percent by weight.
- Coated alloys with alloy contents greater than about 10 percent by weight have substantially the same electrical properties, but are used less frequently because they are correspondingly more expensive.
- the control units are normally arranged as add-on or as on-site control unit in the corresponding unit.
- the control units are normally arranged as add-on or as on-site control unit in the corresponding unit.
- a local control device in a fluid environment such as oils and under certain circumstances resulting gases high demands on the material resistance, in particular the sealing of the usually two-piece housing and / or on the seal of the implementation of the metallic connecting lines placed in the housing.
- these are injected in particular in plastic or molded with plastic.
- DE 10 2004 018 488 A1 describes such a gas- and liquid-tight electrical feedthrough of a conductor through a wall of a plastic housing, wherein the plastic housing is designed to be double-walled, at least in the region of the conductor, consisting of an inner wall and an outer wall. Between the inner wall and the outer wall, a permanently elastic material is arranged, which completely surrounds the conductor between the inner wall and the outer wall, and the conductor is injected into the plastic housing.
- the oil should primarily prevent wear on the rotating parts in the transmission and reduce friction.
- the quality of these properties depends in particular on the sulfur content in the oil. Sulfur molecules are extremely polar and attach themselves to the metal surfaces. Under load, there is a chemical reaction between the metallic roughness peaks of the metal surfaces and the sulfur molecules. In the process, a reaction layer forms on the surfaces, which reduces wear and friction. The material in the reaction layer is somewhat softer so that breakage or localized welding of the roughness peaks is avoided.
- the invention is therefore based on the object suburban control units with metallic see connecting lines to create such that they do not fail even in an environment of oils which have a sulfur content greater than about 1200 ppm.
- Suburb control devices in motor vehicle construction comprise at least one electronic control unit in a housing which are electrically connected to electrical components, such as sensors, in particular rotational speed sensors or temperature sensors, outside the housing using metallic connecting lines.
- the housing in particular the housing of a suburb transmission control unit is arranged in an environment of oils with sulfur contents greater than about 1200 ppm.
- a metallic connecting line a line made of a copper alloy with an alloying content greater than 10% is used, whereby a sulfur corrosion is avoided at the metallic connecting line.
- Copper alloy interconnections with more than 10 weight percent incident metal components are known, e.g. German silver or brass.
- these have in the past been used only in conjunction with non-aggressive or less aggressive oils having a sulfur content of less than about 1200 ppm. In this use, sulfur corrosion has not been a problem and the corrosion resistant property of this material has not been known or necessary in such applications.
- the proportion of accompanying metals in the copper alloy can be greater than 12% instead of more than 10%. In other cases, especially a range between 10 - 45% and 12 - 45% has proven to be particularly resistant to corrosion.
- rigid lead frames or rather flexible cabling or flexible printed circuit boards, also called flex films, are used as metallic connecting leads.
- the connecting leads are made of copper with one or more accompanying metals such as tin, zinc, iron, aluminum, nickel, manganese, silicon, chromium, titanium, lead.
- the housing of the control unit usually comprises at least two
- Housing parts made of plastic and / or metal.
- the housing parts are each connected to each other by means of a seal.
- the seal can be designed, for example, as a separate insert seal, but alternatively it can also be a molded liquid seal.
- the metallic connecting lines which both conduct currents of up to 100 amperes, for example for outgoing control currents of peripheral electronic components, for example pump controls or transmit electrical sensor signals with only very small currents from the interior of the housing to the outside, are in particular along a seal from Housing interior led into the outer area of the housing.
- the metallic connecting line is injected into the plastic or encapsulated in plastic.
- this housing part is double-walled, at least in the region of the metallic connecting line.
- the space between inner wall and outer wall can be filled with a special liquid sealing material.
Landscapes
- General Details Of Gearings (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013225583.7A DE102013225583A1 (de) | 2013-12-11 | 2013-12-11 | Verwendung von metallischen Verbindungsleitungen in einem Steuergerät |
| PCT/EP2014/075945 WO2015086342A1 (de) | 2013-12-11 | 2014-11-28 | Verwendung von metallischen verbindungsleitungen in einem steuergerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3080817A1 true EP3080817A1 (de) | 2016-10-19 |
| EP3080817B1 EP3080817B1 (de) | 2019-09-18 |
Family
ID=52003754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14806231.8A Active EP3080817B1 (de) | 2013-12-11 | 2014-11-28 | Verwendung von metallischen verbindungsleitungen in einem steuergerät |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3080817B1 (de) |
| DE (1) | DE102013225583A1 (de) |
| WO (1) | WO2015086342A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2756407B2 (ja) * | 1993-12-28 | 1998-05-25 | 大同メタル工業株式会社 | 耐腐食性と耐摩耗性に優れた摺動材料およびその製造方法 |
| JP4596404B2 (ja) * | 2001-06-05 | 2010-12-08 | 株式会社デンソー | 燃料ポンプ用直流電動機の通電部材とその製造方法および燃料ポンプ |
| CN100462562C (zh) * | 2004-03-31 | 2009-02-18 | 三菱综合材料Pmg株式会社 | 内接型齿轮泵的内转子以及外转子 |
| DE102004018488B4 (de) | 2004-04-14 | 2012-01-26 | Swoboda Kg | Leiterdurchführung in Kunststoffgehäusen |
-
2013
- 2013-12-11 DE DE102013225583.7A patent/DE102013225583A1/de not_active Withdrawn
-
2014
- 2014-11-28 WO PCT/EP2014/075945 patent/WO2015086342A1/de not_active Ceased
- 2014-11-28 EP EP14806231.8A patent/EP3080817B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013225583A1 (de) | 2015-06-11 |
| WO2015086342A1 (de) | 2015-06-18 |
| EP3080817B1 (de) | 2019-09-18 |
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