EP2401789B1 - Verfahren zur herstellung flexibler metallkontakte - Google Patents

Verfahren zur herstellung flexibler metallkontakte Download PDF

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Publication number
EP2401789B1
EP2401789B1 EP20100704937 EP10704937A EP2401789B1 EP 2401789 B1 EP2401789 B1 EP 2401789B1 EP 20100704937 EP20100704937 EP 20100704937 EP 10704937 A EP10704937 A EP 10704937A EP 2401789 B1 EP2401789 B1 EP 2401789B1
Authority
EP
European Patent Office
Prior art keywords
metal
thermal
electrical
contacts
metal contacts
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.)
Not-in-force
Application number
EP20100704937
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2401789A1 (de
Inventor
Frank Haass
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.)
BASF SE
Original Assignee
BASF SE
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Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to EP20100704937 priority Critical patent/EP2401789B1/de
Publication of EP2401789A1 publication Critical patent/EP2401789A1/de
Application granted granted Critical
Publication of EP2401789B1 publication Critical patent/EP2401789B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • 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
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • 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
    • 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
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/654—Including a free metal or alloy constituent
    • Y10T442/655—Metal or metal-coated strand or fiber material

Definitions

  • the invention relates to methods for producing flexible electrical and / or thermal metal contacts for connecting electrical, electronic or thermal components, such contacts and their use for compensating mechanical and / or thermal stresses in an electrical, electronic or thermal component.
  • the contacting establishes the physical connection between the material in the "heart" of the component (which is responsible for the desired effect of the component) and the "outside world".
  • the structure of such a contact is in Fig. 1 shown schematically.
  • the material 1 within the component provides for the actual effect of the component. This may be, for example, an electrical resistance, a diode material, a capacitor, a piezoelectric crystal, or a thermoelectric leg.
  • the naming as the material should not be limited to a single material at this point, it may well involve several materials, composites or other "building units". It is relevant, also within the meaning of the invention, that the material 1 must be traversed by an electric current and / or a heat flow in order to fulfill its purpose in the overall structure.
  • FIG. 1 A common construction is in Fig. 1 shown.
  • the material 1 is connected on at least two sides via the contacts 4 and 5 with the leads 6 and 7 respectively.
  • the layers 2 and 3 are intended to symbolize an intermediate layer (barrier material, solder, adhesion promoter or the like) which may be necessary between the material 1 and the contacts 4 and 5 .
  • these intermediate layers may well be omitted or even multiple layers, depending on the specific structure of the component.
  • the pairs belonging to each other segments 2/3, 4/5, 6/7 can, but need not be identical. Ultimately, this also depends on the specific structure and the application, as well as the flow direction of electrical current or heat flow through the structure.
  • contacts 4 and 5 These provide a close connection between material and supply line. If the contacts are bad, high losses occur here, which can severely limit the performance of the component. For this Reason the contacts are often also pressed onto the material. The contacts are therefore exposed to a strong mechanical stress. This mechanical load increases as soon as increased (or even lowered) temperatures or / and thermal changes play a role. The thermal expansion of the materials installed in the component inevitably leads to mechanical stress, which in extreme cases can lead to a failure of the component by a tearing of the contact.
  • the contacts used must have a certain flexibility and spring properties, so that such thermal stresses can be compensated.
  • a sheet of metal or metal plate is usually not soft or flexible enough to meet the requirements.
  • thermoelectric ketrischen components which are operated in a sometimes quite large (several hundred Kelvin) temperature gradient
  • the use of such "buffering" contacts from the literature is known. So describes N. Eisner, Mat. Res. Soc. Symp. Proc. 1991, 234, 167 , the use of flexible metal plates for contacting in thermoelectric generators.
  • EP-A-0 901 191 relates to an electrical connection of a woven mesh.
  • the fabric consists of parallel conductive metal filaments that are cross-interwoven with non-conductive filaments.
  • the fabric is embedded in a resin matrix. It is stated that the conductive tissue can be deformed.
  • US 2006/0094269 relates to an electrical contact and a method for its production.
  • the contact is made of a woven or perforated metal sheet that can be deformed into a desired shape using elastic deformation and plastic deformation.
  • a folded or unfolded layer structure can be formed.
  • the metal mesh is formed so that no further support elements are required.
  • the contacts described are not yet sufficiently flexible and adaptable to extreme temperature fluctuations for all applications.
  • Object of the present invention is to provide a method for producing flexible electrical and / or thermal metal contacts for connecting electrical, electronic or thermal components, the flexible or resilient contacts leads, which show a favorable property spectrum especially for thermoelectric applications.
  • the object is achieved by a method for producing flexible electrical and / or thermal metal contacts for connecting electrical, electronic or thermal components, in which compressed metal fiber web with a mean fiber diameter in the range of 1 to 500 microns by rolling under cold deformation to fiberboard.
  • metals can be used.
  • conventional contacting metals such as copper, silver, gold, aluminum, iron or steels, but in principle the method is applicable to any metallic conductive material.
  • the metal is Cu, Ag, Au, Fe, Ni, Pt, Al or alloys thereof.
  • the average fiber diameter is 1 to 500 ⁇ m, preferably 10 to 100 ⁇ m, in particular 40 to 80 ⁇ m.
  • the metal nonwovens preferably have a greater extent in two spatial directions than in the third spatial direction, so that they are flat nonwovens.
  • the metal contacts to be produced preferably have an average diameter or a thickness in the range of 100 ⁇ m to 10 mm.
  • Structured or unstructured (in the sense of the fiber direction) nonwovens can be used as starting materials.
  • the fabric density has an influence on the result, but basically there are no restrictions on the area density or the like.
  • the metal fiber webs can be folded one or more times before densification to form thicker fleece layers, metal fiber nonwovens of different metals can be combined into a layer composite. Even nonwovens with different orientation can be stacked. As a rule, nonwovens have one or two preferred directions. Superimposed or successive layers can show the same preferred direction, or the preferred directions can form an angle to each other in the individual layers. For example, a unidirectional metal fiber fleece can be laid alternately in the longitudinal and transverse directions.
  • the manufacturing process itself is preferably based on a metal fiber fleece.
  • This can be z. B. can be used directly for compaction. But it is also possible to fold the fleece several times before compaction (like a newspaper), and then to compact. In this way, thicker and closely interlocked contact plates are obtained.
  • the rolling can be done in a simple rolling device, but also using multiple parallel or serially inserted rollers.
  • the rollers can have both a smooth and a structured surface. The latter may be advantageous if a certain surface roughness in the product is desired.
  • the cold working may be combined with heating or cooling to adapt the processing properties of the respective metals to the particular rolling process, depending on the fiber thickness.
  • the processes can also be used for continuous and discontinuous production.
  • the invention also relates to flexible electrical and / or thermal metal contacts made of fiberboard obtainable by the method described above.
  • These metal contacts are preferably used to compensate for mechanical and / or thermal stresses in an electrical, electronic or thermal component.
  • mechanical and / or thermal stresses which may occur under operating conditions are compensated.
  • the fiberboard or metal contacts can be used in a variety of applications where good thermal and / or electrical conductivity is required.
  • Preferred fields of application are thermoelectrics, magnetocalorics, electronic components such as capacitors, fuel cells, transformers, batteries, electric generators, the photovoltaic or system combinations thereof.
  • the component is particularly preferably a thermoelectric generator or a Peltier element.
  • a copper fleece with a wire thickness of 60 ⁇ m was transferred by rolling into a fiber board. It was compressed from an initial thickness of 4.5 mm to 0.9 mm.
  • a copper cloth with a fiber diameter of 60 ⁇ m and a weight per unit area of 1700 g / m 2 was transferred by rolling into a fiber board. It was compressed from a starting thickness of 6.0 mm to 1.4 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Non-Insulated Conductors (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Nonwoven Fabrics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Conductive Materials (AREA)
  • Laminated Bodies (AREA)
EP20100704937 2009-02-25 2010-02-22 Verfahren zur herstellung flexibler metallkontakte Not-in-force EP2401789B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100704937 EP2401789B1 (de) 2009-02-25 2010-02-22 Verfahren zur herstellung flexibler metallkontakte

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09153561 2009-02-25
PCT/EP2010/052194 WO2010097360A1 (de) 2009-02-25 2010-02-22 Verfahren zur herstellung flexibler metallkontakte
EP20100704937 EP2401789B1 (de) 2009-02-25 2010-02-22 Verfahren zur herstellung flexibler metallkontakte

Publications (2)

Publication Number Publication Date
EP2401789A1 EP2401789A1 (de) 2012-01-04
EP2401789B1 true EP2401789B1 (de) 2014-04-09

Family

ID=42201056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100704937 Not-in-force EP2401789B1 (de) 2009-02-25 2010-02-22 Verfahren zur herstellung flexibler metallkontakte

Country Status (10)

Country Link
US (1) US20110306261A1 (ru)
EP (1) EP2401789B1 (ru)
JP (1) JP5581340B2 (ru)
KR (1) KR20110121709A (ru)
CN (1) CN102362393B (ru)
CA (1) CA2753484A1 (ru)
RU (1) RU2011138927A (ru)
SG (1) SG174144A1 (ru)
TW (1) TW201041256A (ru)
WO (1) WO2010097360A1 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109075484A (zh) * 2017-01-06 2018-12-21 卓英社有限公司 弹性接触端子

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TW200933940A (en) * 2007-12-28 2009-08-01 Basf Se Extrusion process for preparing improved thermoelectric materials
JP5468554B2 (ja) * 2008-02-07 2014-04-09 ビーエーエスエフ ソシエタス・ヨーロピア 熱電応用のためのドープテルル化スズを含む半導体材料
RU2011142629A (ru) 2009-03-24 2013-04-27 Басф Се Самоорганизующиеся термоэлектрические материалы
JP6171513B2 (ja) * 2013-04-10 2017-08-02 日立化成株式会社 熱電変換モジュールおよびその製造方法
JP2017143111A (ja) * 2016-02-08 2017-08-17 日立化成株式会社 熱電変換モジュールおよびその製造方法

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CN109075484A (zh) * 2017-01-06 2018-12-21 卓英社有限公司 弹性接触端子

Also Published As

Publication number Publication date
CN102362393B (zh) 2013-08-14
TW201041256A (en) 2010-11-16
SG174144A1 (en) 2011-10-28
CA2753484A1 (en) 2010-09-02
WO2010097360A1 (de) 2010-09-02
EP2401789A1 (de) 2012-01-04
RU2011138927A (ru) 2013-04-10
JP2012518914A (ja) 2012-08-16
KR20110121709A (ko) 2011-11-08
CN102362393A (zh) 2012-02-22
JP5581340B2 (ja) 2014-08-27
US20110306261A1 (en) 2011-12-15

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