EP1132935B1 - Elektrisches Bauelement und Verfahren zu seiner Herstellung - Google Patents

Elektrisches Bauelement und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP1132935B1
EP1132935B1 EP20010105565 EP01105565A EP1132935B1 EP 1132935 B1 EP1132935 B1 EP 1132935B1 EP 20010105565 EP20010105565 EP 20010105565 EP 01105565 A EP01105565 A EP 01105565A EP 1132935 B1 EP1132935 B1 EP 1132935B1
Authority
EP
European Patent Office
Prior art keywords
viskoelastic
header
component according
electrical component
terminal elements
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.)
Expired - Lifetime
Application number
EP20010105565
Other languages
English (en)
French (fr)
Other versions
EP1132935A2 (de
EP1132935A3 (de
Inventor
Jürgen BREITLOW-HERTZFELDT
Ralf Hoffmann
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.)
TE Connectivity Germany GmbH
Original Assignee
Tyco Electronics AMP 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 Tyco Electronics AMP GmbH filed Critical Tyco Electronics AMP GmbH
Priority to EP20010105565 priority Critical patent/EP1132935B1/de
Publication of EP1132935A2 publication Critical patent/EP1132935A2/de
Publication of EP1132935A3 publication Critical patent/EP1132935A3/de
Application granted granted Critical
Publication of EP1132935B1 publication Critical patent/EP1132935B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H50/443—Connections to coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock

Definitions

  • the invention relates to an electrical component having a functional unit which is secured to a header and which generates or is sensitive to sound, and having terminal elements which are electrically and acoustically coupled to the functional unit and which project through holes in the header onto the side of the header remote from the functional unit, whereby the functional unit is acoustically isolated.
  • Document US 4 933 655 discloses a device according to the preamble of claim 1.
  • Electrical components of the type mentioned at the outset which form a relay and in which the sound-generating functional unit is the electromagnetic drive of the relay, are known. Electrical components of this type are used for example in cars. The switching noise of electrical components of this type is in many cases so loud that it can even be heard in the passenger compartment of the car. To increase driving comfort in the car, it is consequently necessary to dampen the switching noise of the relay.
  • a sound-dampened relay in which the terminal elements are connected to the electromagnetic drive by way of lines which have a pronounced vibration-damping effect is known.
  • a relay of this type has the disadvantage, however, that the lines having a pronounced vibration-damping effect, which are usually made from stranded conductors or sheet-metal strips punched in a meandering shape, have an ohmic resistance which cannot be disregarded. This means that the load circuit resistance of the relay increases to a value which in some cases is no longer acceptable.
  • sound-dampened relays in which dampen elements are arranged in the holes in a header or between the header and the terminal elements, are known. These sound-dampened relays have the disadvantage that because of the sound-damping transition between the terminal element and the header, the terminal elements have only a low level of mechanical strength in the header. Thus, sound-dampened relays of this type cannot be used for plug relays, that is to say relays which are plugged into a socket together with other electronic components.
  • the invention specifies an electrical component on a functional unit which is secured to a header and which generates or is sensitive to sound.
  • Mechanically secured to the header are terminal elements which are electrically and acoustically coupled to the functional unit.
  • the terminal elements project through holes in the header onto the side of the header remote from the functional unit.
  • the terminal elements have a modulus of elasticity of E A > 50 megapascals, and are partially encased in a viskoelastic material having a modulus of elasticity of E W ⁇ 10 megapascals.
  • a viskoelastic material should be understood to mean a material which can be plastically deformed and is elastic enough to return to its original shape again slowly after the deformation.
  • the material is plasto-elastic.
  • the terminal elements are made from a copper alloy or a similar material. These materials have a modulus of elasticity which is greater than 100 megapascals.
  • a casting compound of one-component or two-component synthetic material is possible.
  • a viskoelastic material of this type typically has a modulus of elasticity which is smaller than one megapascal.
  • a viskoelastic material which is a thermoplastic is possible.
  • a component in which a viskoelastic thermoplastic is partially moulded around the terminal elements is particularly advantageous. This means that the components are particularly easy and inexpensive to make.
  • a component in which the terminal elements are arranged in troughs formed by the header, with part sections provided for the encasing is particularly advantageous.
  • the volume contained between an inner wall of the trough and the corresponding terminal element is at least partially filled with viskoelastic material.
  • the functional unit for example the magnet system of an electromagnetic relay is possible.
  • the reduced switching noise of an electromagnetic relay of this type is particularly critical when it is used in motor vehicles, where the invention is used particularly advantageously.
  • the invention discloses a process for manufacturing a component in which a viskoelastic thermoplastic is moulded partially around the terminal elements.
  • the component is particularly easy and inexpensive to make.
  • the invention discloses a process for manufacturing a component, where a viskoelastic material in the liquid state is poured into a trough containing a terminal element and then cured.
  • the component is particularly easy and inexpensive to make.
  • the invention discloses a process for manufacturing a component, having the following steps:
  • Figure 1 shows an electrical component having a header 1 and a functional unit 2.
  • the header 1 may be for example of synthetic material.
  • the functional unit 2 may be for example the electromagnetic drive system of a relay. Through a hole in the header 1 there projects a terminal element 3 which is secured to the header 1 for example by adhesion. A section of the terminal element 3 is encased in a viskoelastic material 4.
  • the functional unit 2 is electrically and acoustically coupled to the terminal element 3 by means of a coupling element 5.
  • Figure 2 shows a header 1 which is constructed to form a trough 7.
  • a section 6 of the terminal element 3 is located in the trough 7 and projects through the header 1 onto the side of the header 1 opposite the trough 7.
  • the functional unit (not illustrated in Figure 2) is located on the same side of the header 1 as the trough 7.
  • Viskoelastic material 4 may be put into the trough 7, for example in liquid form, and subsequently cured.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (10)

  1. Elektrisches Bauelement, das eine Funktionseinheit (2) umfasst, die an einem Kopf (1) befestigt ist und Anschlusselemente (3) hat, die mechanisch an dem Kopf (1) befestigt und elektrisch und akustisch an die Funktionseinheit (2) gekoppelt sind, dadurch gekennzeichnet, dass die Anschlusselemente (3) durch Löcher in dem Kopf (1) auf die von der Funktionseinheit (2) entfernte Seite des Kopfs (1) hin vorstehen und einen Elastizitätsmodul von EA > 50 MPa haben, und dadurch, dass die Anschlusselemente teilweise in einem viskoelastischen Material (4) eingeschlossen sind, das einen Elastizitätsmodul von EW < 10 MPa hat.
  2. Elektrisches Bauelement nach Anspruch 1, wobei EA > 100 MPa und EW < 1 MPa ist.
  3. Elektrisches Bauelement nach Anspruch 1 oder 2, wobei das viskoelastische Material (4) eine Vergussmasse aus einem Einkomponenten- oder Zweikomponentenmaterial ist.
  4. Elektrisches Bauelement nach Anspruch 1 oder 2, wobei das viskoelastische Material (4) ein thermoplastischer Kunststoff ist.
  5. Elektrisches Bauelement nach Anspruch 4, wobei ein viskoelastischer thermoplastischer Kunststoff (4) teilweise um die Anschlusselemente (3) geformt ist.
  6. Elektrisches Bauelement nach Anspruch 1 bis 4, wobei die Anschlusselemente (3) in durch den Kopf (1) geformten Mulden (7), mit Teilsektionen (6), angeordnet sind und wobei das zwischen einer Innenwand der Mulde und dem entsprechenden Anschlusselement (3) enthaltene Volumen wenigstens teilweise mit einem viskoelastischen Material (4) gefüllt ist.
  7. Elektrisches Bauelement nach Anspruch 1 bis 6, wobei die Funktionseinheit (2) das Magnetsystem eines elektromagnetischen Relais' ist.
  8. Verfahren zum Herstellen eines Bauelements nach Anspruch 5, wobei ein viskoelastischer thermoplastischer Kunststoff (4) teilweise um die Anschlusselemente (3) geformt wird.
  9. Verfahren zum Herstellen eines Bauelements nach Anspruch 6, wodurch ein viskoelastisches Material (4) im flüssigen Zustand in eine Mulde (7), die ein Anschlusselement (3) enthält, gegossen und danach ausgehärtet wird.
  10. Verfahren zum Herstellen eines Bauelements nach Anspruch 6, das die folgenden Schritte umfasst:
    a) Einführen eines viskoelastischen Materials (4) im festen Zustand in eine Mulde (7), die ein Anschlusselement (3) enthält,
    b) Erhitzen des viskoelastischen Materials (4), bis es sich verflüssigt, und
    c) Abkühlen des viskoelastischen Materials (4), bis es fest wird.
EP20010105565 2000-03-08 2001-03-06 Elektrisches Bauelement und Verfahren zu seiner Herstellung Expired - Lifetime EP1132935B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20010105565 EP1132935B1 (de) 2000-03-08 2001-03-06 Elektrisches Bauelement und Verfahren zu seiner Herstellung

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00104952 2000-03-08
EP00104952 2000-03-08
EP20010105565 EP1132935B1 (de) 2000-03-08 2001-03-06 Elektrisches Bauelement und Verfahren zu seiner Herstellung

Publications (3)

Publication Number Publication Date
EP1132935A2 EP1132935A2 (de) 2001-09-12
EP1132935A3 EP1132935A3 (de) 2003-06-04
EP1132935B1 true EP1132935B1 (de) 2006-08-23

Family

ID=26070653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010105565 Expired - Lifetime EP1132935B1 (de) 2000-03-08 2001-03-06 Elektrisches Bauelement und Verfahren zu seiner Herstellung

Country Status (1)

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EP (1) EP1132935B1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH079101Y2 (ja) * 1988-08-10 1995-03-06 矢崎総業株式会社 渦電流式指示計器におけるリードスイッチ取付構造
FR2719716B1 (fr) * 1994-05-05 1996-06-14 Otis Elevator Co Dispositif de fixation de relais et de contacteurs sur une paroi support avec réduction du bruit d'impact.
JPH1027533A (ja) * 1996-07-11 1998-01-27 Fujitsu Takamizawa Component Kk 電磁継電器
DE19712958C1 (de) * 1997-03-27 1998-05-07 Kloeckner Moeller Gmbh Schaltvorrichtung

Also Published As

Publication number Publication date
EP1132935A2 (de) 2001-09-12
EP1132935A3 (de) 2003-06-04

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