EP2219901A1 - Élément de liaison - Google Patents

Élément de liaison

Info

Publication number
EP2219901A1
EP2219901A1 EP08804637A EP08804637A EP2219901A1 EP 2219901 A1 EP2219901 A1 EP 2219901A1 EP 08804637 A EP08804637 A EP 08804637A EP 08804637 A EP08804637 A EP 08804637A EP 2219901 A1 EP2219901 A1 EP 2219901A1
Authority
EP
European Patent Office
Prior art keywords
connecting element
holder
measuring device
element according
housing part
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.)
Withdrawn
Application number
EP08804637A
Other languages
German (de)
English (en)
Inventor
Lars Sodan
Michael Munz
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2219901A1 publication Critical patent/EP2219901A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means

Definitions

  • the invention relates to a connecting element according to the preamble of the independent claim.
  • Force measurement for a vehicle seat is used to determine a vehicle occupant weight and its distribution. This helps in the control of personal protective equipment, such as airbags. For example, a force introduced into the connecting element leads to a displacement of a magnet in relation to a Hall sensor. The force is then measurable.
  • the connecting element has two housing parts, wherein a first housing part has a plug for emitting signals of the connecting element and a second part has the measuring device and the mechanical function as a connecting element. The measuring element is thereby decoupled from a force which acts on the signal output means, for example by cable pull. For this purpose, a spring contact can be used.
  • the connecting element according to the invention with the features of the independent claim has the advantage that can be dispensed with a circuit board or inserts and so the structure is further simplified.
  • the electrical components and the sensor system are applied in a material-locking manner to the conductor tracks of the holder which the measuring device has.
  • the signal output means with the interconnects electrically coupled decoupled can be significantly reduced.
  • components such as the blank or press-fit zones and steps in the production process are thus eliminated. Decisive steps are, for example, pressing the printed circuit board into the connector housing and packing and fitting the contact spring.
  • the manufacturing process of the connector housing can be simplified by the connector pins are attached easier, and it is essentially only two inserts.
  • the connecting element is, for example, a bolt or a screw which can be inserted into the seat stalls of a vehicle. This ensures that the installation of this connecting element does not lead to a booster seat.
  • the measuring device is configured for force measurement and absorbs the force introduced into the connecting element, which for example leads to a displacement between a sensor, such as a Hall sensor and a magnet.
  • a sensor such as a Hall sensor and a magnet.
  • the introduction of force for example, can be measured by sensors that can absorb a strain or the like. This allows the measuring device once record movements or mechanical stresses.
  • the force measurement is particularly relevant for a weight measurement of the vehicle occupants, since such a weight measurement influences the activation of personal protection devices, such as airbags, to what extent an airbag or even an airbag can be triggered.
  • Signaling means are, for example, plug pins or other mechanical connections that allow the delivery of signals.
  • the signal output can also be done without a line, i. H. be provided a mechanical connection.
  • the connecting element according to the invention has two housing parts, which are connected to one another, wherein the first housing part, the signal output medium is thus used as a plug, while the second housing part has the measuring device to measure the introduced force.
  • the holder is a leadframe which has conductor tracks which are separated from one another, for example by plastic or air.
  • conductor tracks which are separated from one another, for example by plastic or air.
  • the sensors are preferably Hall sensors, but it is also possible to use strain gauges or other sensors which, for example, are able to absorb a mechanical stress. Other sensors may also be used to accommodate movement of one part of the connecting element to another part, for example optical sensors.
  • the signal output means are electrically coupled to the tracks in a decoupled manner to decouple forces from the electrical connection that act on the signal output means and could affect signal transmission from the tracks to the signal output means. This is avoided according to the invention, so that the electrical transmission of the signals is improved.
  • the electrical components are two capacitors, which are connected in parallel to the terminals of the sensor. These capacitors can be used, for example, to keep away high pulses from the sensor by the capacitors short-circuiting these pulses. For other electromagnetic interference, such capacitors may be important. It is also advantageous that the cohesive connection of the sensor and the at least two electrical components is applied to the interconnects by Leitkleben, soldering or welding. The conductive bonding is particularly advantageous since the curing step of the conductive adhesive can be carried out together with that of the adhesive used to fasten the sensor. The use of such a conductive adhesive ensures both the mechanical attachment, as well as the electrical connection.
  • the signal output means at least two
  • the cohesive connection can be realized here in particular by welding.
  • the connector pins are used for connection with, for example, electrical cables. By pressing the contact springs on the tracks, the connection is particularly easy to produce.
  • the at least two connector pins are injected into the first housing part.
  • the injection of such connector pins is a particularly cost-effective production variant.
  • the holder has a first section, on which the sensor system and the at least two electrical components are applied.
  • the holder further has a second portion, which press the contact springs, wherein the holder itself is made in one piece and the first and the second portion are realized by a bend.
  • This allows a particularly simple production of the connecting element according to the invention.
  • a mechanical barrier between the two adhesive surfaces ensures that mutual contamination between them is ruled out.
  • the components (two capacitors) are bonded by conductive bonding with another
  • Adhesive applied as the HaII-IC which is mechanically fixed with a silicone adhesive, before it is electrically contacted by Schöpflötens with the leadframes.
  • This mechanical barrier (“plastic collar”) is injected in the same production step, in which the leadframes are molded around with plastic.
  • FIG. 1 shows, in simplified form, the part of the construction of the connecting element which is relevant according to the invention.
  • FIG. 2 is a perspective view of the first housing part
  • Figure 4 shows the holder with its three inserts
  • Figure 5 shows the built-in holder without components.
  • Figure 1 shows schematically the signal output means are connected to the holder 104.
  • the first housing part 100 has the signal output means, consisting of at least one connector pin 101 of contact springs 103 and 102, wherein here only the contact spring 103 is shown in connection with the holder 104.
  • the contact spring 103 presses on conductor tracks which are located on the holder 104.
  • the electrical connection is force-decoupled from forces acting on the first housing part 100 manufactured.
  • On the holder 104 are cohesively electrical components 105 and the sensor 106, in this case applied a Hall sensor.
  • the Hall sensor 106 is located opposite a magnet 107, which is mounted on a bending beam 108 and at a
  • the contact spring 103 is welded to the plug pin 101.
  • the electrical components 105 and the sensor 106 are presently by conductive adhesive on the
  • the angulation is here in 90 degrees.
  • One of the contacts is realized by the conductor tracks of the holder, thus the leadframe.
  • the leadframes are three individual parts, which only shortly before inserting into the
  • the three parts are a central part 41 and symmetrically outer parts 42 and 40, wherein all three parts a receiving surface for the components and the contacts for
  • FIG. 5 is a further illustration of the built-in leadframe, wherein a barrier 50 prevents contamination between the adhesive surfaces 51 and 52 as well as 53 and 54. The contamination is possible because different glue for the
  • the adhesives may be designed as conductive adhesives, particularly for the capacitors, while for the HaII-IC it may be useful to make patches for making the electrical connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Seats For Vehicles (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

L'invention concerne un élément de liaison comprenant un dispositif de mesure de la force pour un siège de véhicule. L'élément de liaison présente des moyens d'émission de signal dans une première partie de boîtier et un dispositif de mesure dans une deuxième partie de boîtier. Le dispositif de mesure lui-même présente un support avec des pistes conductrices pour un dispositif de détection. Le dispositif de détection et au moins deux composants électriques sont montés sur les pistes conductrices par contact de matériaux. Les moyens d'émission de signal sont reliés électriquement avec les pistes conductrices avec découplage des forces.
EP08804637A 2007-11-13 2008-09-24 Élément de liaison Withdrawn EP2219901A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007054096A DE102007054096A1 (de) 2007-11-13 2007-11-13 Verbindungselement
PCT/EP2008/062725 WO2009062777A1 (fr) 2007-11-13 2008-09-24 Élément de liaison

Publications (1)

Publication Number Publication Date
EP2219901A1 true EP2219901A1 (fr) 2010-08-25

Family

ID=40328406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08804637A Withdrawn EP2219901A1 (fr) 2007-11-13 2008-09-24 Élément de liaison

Country Status (4)

Country Link
US (1) US8604363B2 (fr)
EP (1) EP2219901A1 (fr)
DE (1) DE102007054096A1 (fr)
WO (1) WO2009062777A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015218992A1 (de) * 2015-10-01 2017-04-06 Volkswagen Aktiengesellschaft Betätigungskraftmesser für ein Bremssystem eines Kraftfahrzeugs

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510490A (en) * 1947-09-05 1950-06-06 Ager Solomon Applicator stick
GB234220A (en) * 1964-12-10 1925-05-28 Stanley Joseph William Charlto Improved means for measuring quantities or doses of granular or powdered materials
US4329990A (en) * 1980-08-07 1982-05-18 Sneider Vincent R Expanding swab applicator
US6089106A (en) * 1998-09-04 2000-07-18 Breed Automotive Technology, Inc. Force sensor assembly
DE19959128B4 (de) * 1998-12-08 2004-02-12 Trw Inc., Lyndhurst Kapazitiver Gewichtssensor
DE10111020A1 (de) * 2001-03-07 2002-09-12 Bosch Gmbh Robert Verbindungselement
DE10216723A1 (de) * 2002-04-16 2003-10-30 Bosch Gmbh Robert Kraftmesser, insbesondere zur Sitzgewichtsbestimmung in einem Kraftfahrzeug
DE10341334A1 (de) 2003-09-08 2005-04-14 Siemens Ag Kraftmessvorrichtung
DE10354585A1 (de) 2003-11-21 2005-06-16 Robert Bosch Gmbh Verbindungselement
US20060103192A1 (en) * 2004-11-18 2006-05-18 Peter Norton Load cell and seat occupant weight sensing system
DE102005014792A1 (de) * 2005-03-31 2006-12-28 Tyco Electronics Amp Gmbh Lastaufnehmer mit berührungsloser Detektoreinheit
US7473232B2 (en) * 2006-02-24 2009-01-06 Boston Scientific Scimed, Inc. Obtaining a tissue sample
EP1923684B1 (fr) * 2006-11-20 2011-02-16 Texmag GmbH Vertriebsgesellschaft Dispositif destiné à la mesure d'une force de traction à l'intérieur d'une nappe de tissu ou d'un écheveau de fil
US8066717B2 (en) * 2007-03-19 2011-11-29 Restoration Robotics, Inc. Device and method for harvesting and implanting follicular units
WO2009134509A2 (fr) * 2008-02-15 2009-11-05 3M Innovative Properties Company Dispositif d'acquisition d'échantillon

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009062777A1 *

Also Published As

Publication number Publication date
US8604363B2 (en) 2013-12-10
WO2009062777A1 (fr) 2009-05-22
US20100300769A1 (en) 2010-12-02
DE102007054096A1 (de) 2009-05-14

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