EP2792029B1 - Passage de contact étanche aux fluides - Google Patents

Passage de contact étanche aux fluides Download PDF

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Publication number
EP2792029B1
EP2792029B1 EP12809669.0A EP12809669A EP2792029B1 EP 2792029 B1 EP2792029 B1 EP 2792029B1 EP 12809669 A EP12809669 A EP 12809669A EP 2792029 B1 EP2792029 B1 EP 2792029B1
Authority
EP
European Patent Office
Prior art keywords
liquid
contact
flat contact
flat
plastic body
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
EP12809669.0A
Other languages
German (de)
English (en)
Other versions
EP2792029A1 (fr
Inventor
Gerd Kindermann
Uwe Raschke
Uwe Pitzul
Marek Ciezarek
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.)
Kostal Kontakt Systeme GmbH
Original Assignee
Kostal Kontakt Systeme 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 Kostal Kontakt Systeme GmbH filed Critical Kostal Kontakt Systeme GmbH
Publication of EP2792029A1 publication Critical patent/EP2792029A1/fr
Application granted granted Critical
Publication of EP2792029B1 publication Critical patent/EP2792029B1/fr
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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
    • 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
    • H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing

Definitions

  • the invention relates to a fluid-tight contact bushing through a plastic body, with at least one flat contact having one or more cross-sectional changes on an overmolded portion.
  • Such a fluid-tight contact bushing is from the DE 10 2009 058 525 A1 known.
  • the flat contact has at least one section with a circumferentially tapering cross-sectional contour in the axial direction. After encapsulation, the flat contact is displaced in the direction of its taper (s) against the encapsulation, whereby the cavities are closed along the lateral surfaces of the tapered contour and so the contact bushing is sealed along axial sections of the flat contact.
  • the cavities, which are sealed here by the displacement of the flat contact, are caused by shrinkage processes during cooling of the plastic material.
  • thermoplastic materials change their internal structure during cooling, which reduces the volume of material.
  • the plastic body consists of a non-shrinking Duroplastmaterial that the longitudinal edges of the at least one flat contact are rounded, and that the cross-sectional changes are performed by recesses.
  • the solution of the problem thus consists of the combination of a specially selected Umspritzungsmaterials with a special shape of the flat contact. Together these features allow a contact bushing which is at least fluid-tight and which, for a defined pressure range, may even be gas-tight.
  • thermoset material for encapsulation of the at least one flat contact.
  • thermoplastics commonly used for injection molding can be found below Duroplast materials, which do not reduce their volume during curing, but keep constant or even increase.
  • non-shrinking thermoset materials which are also referred to as "zero-decayers", which neither reduce nor increase their volume, have proven suitable. Such materials are found, for example, in the substance groups of epoxy resins, phenolic resins or the so-called bulk molding compounds (BMC).
  • BMC bulk molding compounds
  • thermoset material In order to ensure a uniform connection between the thermoset material and the flat contact, it is also provided to round the longitudinal edges of the at least one flat contact.
  • the flat contact thus has no exactly rectangular cross-section, but a rectangular cross-section with rounded transitions between the cross-sectional sides.
  • This profile is schematic in the FIG. 5 shown.
  • the at least one flat contact also has on a molded portion at its edge portions of one or more rectangular or rounded recesses, as exemplified in the FIGS. 3 and 4 are shown. As a result, the cross-sectional width of the flat contact varies in its axial direction.
  • the recesses cause the at least one flat contact after the encapsulation is positively connected to the Umspritzungsmaterial.
  • the recesses also form in the axial direction of the flat contact a labyrinth structure, which for the adjacent medium a causes multi-stage pressure drop, which further improves the sealing properties of the contact bushing.
  • the overmolding material according to the invention does not change its material volume during processing and therefore fills the recesses tightly.
  • the at least one flat contact and the overmolding material have as similar as possible and ideally the same temperature expansion coefficients. As a result, both mechanical stresses and cavity formations, which would impair the sealing properties, can be avoided over a wide temperature range.
  • the material connection between the at least one flat contact and the plastic body formed by the encapsulation can be further improved by applying a bonding agent.
  • the non-encapsulated end portions of the at least one flat contact can be treated by a galvanic process, without the encapsulated areas are affected.
  • the overmolded and non-overmolded regions of the at least one flat contact can be provided with different galvanic coatings, which have particularly favorable properties for the respective region.
  • only the non-overmolded regions of the at least one flat contact have a tin or silver coating.
  • the non-surface-treated and optionally provided with a tarnish protection flat contacts can be encapsulated in the production process first, and then the surfaces protruding from the plastic body ends of the flat contacts surface-treated and optionally passivated. Since this only partial sections of the tabs are treated, a savings of silver and passivation is also advantageously achieved.
  • FIG. 1 shows a sectional view of a connector housing 6, which has a fluid-tight passage of flat contacts 1 between two chambers 9, 10.
  • the connector housing 6 is made as an injection molded part, wherein for the production of the connector housing 6 sections 4 of the flat contacts 1 were encapsulated with a non-shrinking Duroplastmaterial.
  • FIG. 1 shown two-pole version of a contact bushing is purely natural example.
  • a contact feedthrough according to the invention can have a freely definable number of molded flat contacts 1, in particular also contact feedthroughs each with a single flat contact 1 or else with a higher number of flat contacts 1 can be executed.
  • the FIG. 2 shows a further example, a contact bushing with seven flat contacts 1, which are arranged in three mutually parallel rows.
  • FIGS. 3 and 4 in each case a single flat contact 1, 1 'is shown, which is surrounded on a section 4 by an encapsulation 3.
  • the encapsulation 3 shown as a hatched area here illustrates schematically in each case a flat plug 1, 1 'directly surrounding Partial volume of a plastic body 2, as in the FIGS. 1 or 2 is shown.
  • the flat contact 1, 1 ' has a plurality of cross-sectional changes, which are in the form of rounded recesses 5a (FIG. FIG. 3 ) or rectangular recesses 5b (FIG. FIG. 4 ) are introduced into the longitudinal sides of the flat contact 1 or 1 '.
  • the encapsulation 3 forms a positive connection with the recesses 5a and 5b, which is fluid-tight in a wide temperature and pressure range due to the zero-deceleration properties of the thermoset material provided for this purpose.
  • non-encapsulated end sections 7a, 7b of the flat contact 1, 1 ' can be treated galvanically; For example, to improve the electrical contact properties are provided with a silver coating.
  • FIG. 5 shows a section from the in the FIG. 4 illustrated flat contact 1 'in a cross-sectional view.
  • One of the recesses 5b is visible, through which the cross-sectional width b of the flat contact 1 'varies in its axial direction a.
  • Visible are also rounded longitudinal edges 8 of the flat contact 1 ', which are formed on the punching side by the punching tool and on the ridge side by a pre-stamping to the flat contact 1'.
  • the rounded longitudinal edges 8 substantially improve the connection of the flat contact 1 'to Umspritzungsmaterial.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Reciprocating Pumps (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Claims (9)

  1. Passage de contact étanche aux fluides, destiné à traverser un corps en matière synthétique (2), avec au moins un contact plat (1, 1'), qui, présente une ou plusieurs modifications de section transversale, surmoulés sur une pièce partielle (4), caractérisé en ce que le corps en matière synthétique (2) consiste en un matériau Duroplastique, les bords longitudinaux (8) de l'au moins un contact plat (1, 1') sont arrondis, et les modifications de la section transversale sont effectuées par des évidements (5a, 5b).
  2. Passage de contact étanche aux fluides selon la revendication 1, caractérisé en ce que l'au moins un contact plat (1, 1') et le corps en matière synthétique (2) présentent les mêmes coefficients d'expansion thermique.
  3. Passage de contact étanche aux fluides selon revendication 1, caractérisé en ce que, entre l'au moins un contact plat (1, 1') et le corps en matière synthétique (2), est appliqué un adhésif.
  4. Passage de contact étanche aux fluides selon la revendication 1, caractérisé en ce que le corps en matière synthétique (2) forme un boîtier de connecteur enfichable (6).
  5. Passage de contact étanche aux fluides selon la revendication 4, caractérisé en ce que le passages de contact forme un connecteur enfichable à plusieurs pôles.
  6. Passage de contact étanche aux fluides selon la revendication 1, caractérisé en ce que les sections d'extrémité non enrobées par extrusion (7a, 7b) de l'au moins un contact plat (1, 1') sont traitées selon un processus galvanique.
  7. Passage de contact étanche aux fluides selon la revendication 1 ou 6, caractérisé en ce que l'au moins un contact plat (1, 1') présente, au moins par sections, un revêtement d'étain ou d'argent.
  8. Passage de contact étanche aux fluides selon la revendication 1, caractérisé en ce que les bords longitudinaux (8) de L'au moins un contact plat (1, 1') sont pré-estampés sur le côté de l'arête, et sont, de cette manière, arrondis périphériquement par un processus d'estampage.
  9. Passage de contact étanche aux fluides selon la revendication 1, caractérisé en ce que le corps en matière synthétique (2) consiste en une résine époxydique, une résine phénolique ou en un composé à mouler en vrac, avec des propriétés de nul etrait.
EP12809669.0A 2011-12-13 2012-12-10 Passage de contact étanche aux fluides Not-in-force EP2792029B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011121133A DE102011121133A1 (de) 2011-12-13 2011-12-13 Fluiddichte Kontaktdurchführung
PCT/EP2012/074973 WO2013087576A1 (fr) 2011-12-13 2012-12-10 Passage de contact étanche aux fluides

Publications (2)

Publication Number Publication Date
EP2792029A1 EP2792029A1 (fr) 2014-10-22
EP2792029B1 true EP2792029B1 (fr) 2019-01-09

Family

ID=47501121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12809669.0A Not-in-force EP2792029B1 (fr) 2011-12-13 2012-12-10 Passage de contact étanche aux fluides

Country Status (11)

Country Link
US (1) US9337569B2 (fr)
EP (1) EP2792029B1 (fr)
JP (1) JP6112737B2 (fr)
KR (1) KR101901481B1 (fr)
CN (1) CN103988373B (fr)
BR (1) BR112014014214A2 (fr)
DE (1) DE102011121133A1 (fr)
ES (1) ES2718837T3 (fr)
MX (1) MX353679B (fr)
RU (1) RU2586886C2 (fr)
WO (1) WO2013087576A1 (fr)

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DE102013005705A1 (de) 2013-03-30 2014-10-02 Kostal Kontakt Systeme Gmbh Fluiddichte Kontaktdurchführung
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DE102014008343A1 (de) * 2014-06-04 2015-12-17 Kostal Kontakt Systeme Gmbh Elektrisches Gerät
CN107210559B (zh) * 2015-02-06 2019-04-12 日本精工株式会社 连接器
JP6483015B2 (ja) * 2015-12-28 2019-03-13 日立オートモティブシステムズ株式会社 圧力検出装置
DE102016107409A1 (de) * 2016-04-21 2017-10-26 Phoenix Contact E-Mobility Gmbh Steckverbinderteil mit einem gekühlten Kontaktelement
DE102017208749A1 (de) * 2016-05-30 2017-11-30 Ngk Spark Plug Co., Ltd. Anschlussglied und Stecker
DE102020117129A1 (de) 2020-06-30 2021-12-30 Scherdel Innotec Forschungs- Und Entwicklungs-Gmbh Verbindungsbauteil, elektrisches System damit sowie Herstellungsverfahren dafür

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Also Published As

Publication number Publication date
US9337569B2 (en) 2016-05-10
KR20140104422A (ko) 2014-08-28
RU2586886C2 (ru) 2016-06-10
CN103988373A (zh) 2014-08-13
KR101901481B1 (ko) 2018-09-21
EP2792029A1 (fr) 2014-10-22
BR112014014214A2 (pt) 2017-06-13
RU2014128562A (ru) 2016-02-10
WO2013087576A1 (fr) 2013-06-20
DE102011121133A1 (de) 2013-06-13
US20140256167A1 (en) 2014-09-11
ES2718837T3 (es) 2019-07-04
MX353679B (es) 2018-01-23
JP2015500156A (ja) 2015-01-05
MX2014007064A (es) 2015-03-03
CN103988373B (zh) 2017-07-14
JP6112737B2 (ja) 2017-04-12

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