EP2307858A1 - Couvercle de boîtier de capteur et procédé de fabrication d'un tel couvercle de boîtier de capteur - Google Patents

Couvercle de boîtier de capteur et procédé de fabrication d'un tel couvercle de boîtier de capteur

Info

Publication number
EP2307858A1
EP2307858A1 EP09772226A EP09772226A EP2307858A1 EP 2307858 A1 EP2307858 A1 EP 2307858A1 EP 09772226 A EP09772226 A EP 09772226A EP 09772226 A EP09772226 A EP 09772226A EP 2307858 A1 EP2307858 A1 EP 2307858A1
Authority
EP
European Patent Office
Prior art keywords
sensor housing
housing cover
cover
plastic
sensor
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Withdrawn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
EP09772226A
Other languages
German (de)
English (en)
Inventor
Ronny Ludwig
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 EP2307858A1 publication Critical patent/EP2307858A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors

Definitions

  • the invention relates to a sensor housing cover or a method for producing such a housing cover according to the preamble of the independent patent claims.
  • Sensor housing cover consists only of a base cover and an overmolded plastic, wherein the connection between the overmolded plastic and the base cover is achieved by positive locking over at least one breakthrough.
  • the number of different materials is reduced to two and adhesion problems between the basic cover and the overmoulded plastic are avoided by the positive connection.
  • the overmolded plastic can also take over the function of a seal. Thus, there is a reduction of possible impurities.
  • the method according to the invention can be realized as a simple injection molding process. Final assembly processes are eliminated, which in turn leads to a cost reduction.
  • the sensor housing cover is provided for closing a sensor housing.
  • This sensor housing cover is designed according to the invention.
  • the base cover which is ausgestaltbar according to the dependent claims, according to the invention has at least one breakthrough, so that the overmolded plastic is positively connected to the basic cover.
  • the plastic that is suitable for an injection molding process, so that the wording "overmoulding" becomes clear, can be designed according to the dependent claims
  • the at least one aperture may have a variety of configurations depending on the type of sensor used.
  • the at least one breakthrough is intended, for example, for the realization of the pressure inlet channel.
  • Providing in the method of manufacturing the sensor cover of the base cover means that the base cover is either manufactured by itself or bought in, so that the base cover is already present.
  • the mold can take a variety of configurations, for example a two-part mold.
  • a top and bottom mold which is then sealed and closed.
  • slides can which are extended to contact to define the pressure inlet channel in the injection molding process.
  • the pressure inlet channel usually has a bend.
  • the base cover consists essentially of a hydrolysis-stabilized plastic.
  • the plastics are chemically modified such that they are resistant to alkalis.
  • commercially available plastics are chemically modified such that they are resistant to alkalis.
  • Plastics such as PBT GF30 can be used as housing plastic, for example Ultradur by BASF B4300 for interior applications. If the sensors are used in the atmospheric environment, for example as so-called upfront sensors, which are used as impact sensors in the vehicle front, hydrolysis-stabilized PBT GF30 can, for example, Crastin-CE 2510 or Raditer B
  • I RV 4008 TKB381 can be used.
  • the problem is namely that polybutylene terephthalate (PBT) from 60 ° can be broken down by water and moist heat chemically by hydrolysis. By appropriate stabilization of this storage behavior can be improved. This is possible by special chemical modification. This effect is quantitative and gradual, so that a fundamental change in behavior is not possible, since the ester groups in the molecular structure of PBT represent a weak point.
  • PBT polybutylene terephthalate
  • the basic cover is made in one piece, which contributes to a particularly simple production.
  • a first opening for a pressure inlet channel and two further openings for positive locking are provided, the first opening being larger than the two further openings.
  • the first plastic is silicone which is very suitable for the injection molding process or overmolding.
  • the first plastic so the silicone, for example, may be integrally formed, so then there is only a two-part sensor housing cover, which brings manufacturing and cost advantages.
  • the at least one element is an inner seal for the at least one element.
  • the at least one element can also be the pressure inlet channel, as already stated above and / or an outer seal, for example to the door panel.
  • FIG. 1 a to d show various views of an air pressure sensor according to the invention
  • FIG. 2 shows a sectional view of the installed air pressure sensor
  • FIG. 3 shows a flowchart of the method according to the invention.
  • FIG. 1a shows the sensor housing cover in a view from below. Visible here are the webs 103 and 104, as well as the openings 101 and 102, which are used for the positive connection.
  • silicone which is shown in dashed lines, in contrast to the solid lines of the hydrolysis-stabilized plastic, the expansion is to see around the openings 101 and 102 for the positive connection and also the definition of the pressure inlet channel 100th
  • FIG. 1b shows a side view of the sensor housing cover. Again, the solid lines of the basic lid are visible with the hydrolysis-stabilized plastic. By silicone, which is shown in dashed lines, the pressure inlet passage 105 is defined, as well as the expansions 106 and 107 to realize the positive connection through the holes 101 and 102. In addition, the definition of the pressure inlet channel 110 is visible in the interior of the sensor.
  • Figure Ic shows the sensor housing cover in section. The basic lid is narrow, obliquely hatched, with the hatching is drawn from bottom left to top right, while the silicone as the overmolded plastic is also obliquely hatched, but less narrow and drawn from bottom right to top left. Again, the pressure inlet stub 105 is visible, defined by the silicone.
  • the silicone is present in one piece and makes through the apertures 101 and 102 with the material parts 108 and 109 the positive connection with the basic cover ago. With 103 and 104, the webs of the basic lid are still shown. Also, the definition of the pressure inlet channel in the sensor interior, as well as the
  • the figure Id represents a plan view of the sensor housing cover. Again, the elements of the basic cover are shown in solid lines and dashed lines the silicone parts. The pressure inlet port or channel 105 and the sections 106 and 107 that pass through the bores 102 and 101 to make positive engagement are shown.
  • FIG. 2 shows a sectional view of the sensor housing cover according to the invention in combination with the door mounting plate and the sensor element.
  • the door mounting plate is represented by the elements 200 and 203, the silicone as well as the basic cover in FIG. 1c are correspondingly hatched.
  • the sensor module 202 is represented by a close hatching and closes off the pressure inlet channel 201. By sealing or pressing, the sealing surfaces 207 and 208 are formed. The positive connection is achieved by the passage of the silicon through the holes 204 and 205.
  • the pressure inlet is shown here as leading out into the wet room of the door. In the drying room, the further part of the pressure inlet channel 206 leads.
  • FIG. 3 shows in a flow chart the method for producing the sensor housing cover.
  • the base cover is provided with the at least one aperture, wherein provision may also mean manufacture. It is possible that as shown in Figures 1 and 2, there is more than one breakthrough to allow a better fit, ie clawing of the silicone with the basic cover.
  • the basic lid is enclosed in a two-part form, specifically an upper mold and a lower mold. These forms are closed tightly. The shapes are necessary to let the elements emerge as the sprayed course should be defined as the silicone.
  • step 302 sliding elements are extended to contact to allow definition of the pressure inlet channels 201 and 206. This can be done, for example, in the manner described above.
  • a cooling time is initially provided from the injection and then the sliding elements or slides are withdrawn.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

La présente invention concerne un couvercle de boîtier de capteur et un procédé de fabrication d'un tel couvercle de boîtier de capteur. Le couvercle de boîtier de capteur est composé d'un couvercle de base qui présente au moins un passage, lequel couvercle de boîtier de capteur est extrudé avec une première matière plastique de telle façon que la première matière plastique constitue au moins un élément du couvercle de boîtier de capteur et est assemblée au couvercle de base par complémentarité de forme à travers le ou les passages. Lors de la fabrication, le couvercle de base est d'abord préparé, puis est enfermé dans un moule. L'injection de la première matière plastique dans le moule est utilisée pour fabriquer le ou les éléments du couvercle de boîtier de capteur.
EP09772226A 2008-07-03 2009-05-05 Couvercle de boîtier de capteur et procédé de fabrication d'un tel couvercle de boîtier de capteur Withdrawn EP2307858A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008040155A DE102008040155A1 (de) 2008-07-03 2008-07-03 Sensorgehäusedeckel und Verfahren zur Herstellung eines solchen Sensorgehäusedeckels
PCT/EP2009/055373 WO2010000526A1 (fr) 2008-07-03 2009-05-05 Couvercle de boîtier de capteur et procédé de fabrication d'un tel couvercle de boîtier de capteur

Publications (1)

Publication Number Publication Date
EP2307858A1 true EP2307858A1 (fr) 2011-04-13

Family

ID=41305331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09772226A Withdrawn EP2307858A1 (fr) 2008-07-03 2009-05-05 Couvercle de boîtier de capteur et procédé de fabrication d'un tel couvercle de boîtier de capteur

Country Status (6)

Country Link
US (1) US8707783B2 (fr)
EP (1) EP2307858A1 (fr)
JP (1) JP5449338B2 (fr)
CN (1) CN102084222B (fr)
DE (1) DE102008040155A1 (fr)
WO (1) WO2010000526A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008054743A1 (de) * 2008-12-16 2010-06-17 Robert Bosch Gmbh Vorrichtung und Verfahren zur Herstellung einer Vorrichtung
US10591124B2 (en) 2012-08-30 2020-03-17 Sabic Global Technologies B.V. Heat dissipating system for a light, headlamp assembly comprising the same, and method of dissipating heat
DE102013208545A1 (de) * 2012-12-27 2014-07-03 Robert Bosch Gmbh Erfassungseinrichtung und Verfahren zur Herstellung einer Erfassungseinrichtung
DE102013208541A1 (de) * 2012-12-27 2014-07-03 Robert Bosch Gmbh Erfassungseinrichtung und Verfahren zur Herstellung einer Erfassungseinrichtung
DE102013208534A1 (de) * 2012-12-27 2014-07-03 Robert Bosch Gmbh Verfahren zum Herstellen eines Sensorgehäuses sowie entsprechendes Sensorgehäuse
JP6237457B2 (ja) * 2014-05-14 2017-11-29 株式会社デンソー 圧力センサ
US10352796B2 (en) * 2014-07-28 2019-07-16 Ford Global Technologies, Llc Protective cover for pressure sensor nozzle
US9470595B2 (en) * 2014-08-29 2016-10-18 Trw Automotive U.S. Llc Apparatus for dry side mounting a crash pressure sensor
US10605686B2 (en) * 2017-10-19 2020-03-31 Veoneer Us, Inc. Dual wet and dry combination mounting
WO2020038848A1 (fr) 2018-08-20 2020-02-27 DynaEnergetics Europe GmbH Système et procédé de déploiement et de commande de dispositifs autonomes
CN115077785B (zh) * 2022-06-16 2024-09-03 深圳市汇泰科电子有限公司 应用在自行车码表上的独立气压风道装置及其应用方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02107416A (ja) * 1988-10-17 1990-04-19 Three Bond Co Ltd 複合物品の成形方法

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US3266312A (en) * 1964-02-17 1966-08-16 Gen Motors Corp Level indicator sending unit
US4312123A (en) * 1979-03-12 1982-01-26 Interpace Corporation Methods of making high voltage electrical insulators and oil-less bushings
CZ194096A3 (cs) * 1995-07-03 1998-09-16 Robert Bosch Gmbh Snímač kmitání s přítlačným pouzdrem
US5700360A (en) * 1995-10-31 1997-12-23 Chiron Diagnostics Corporation Fluoroelastomer gasket for blood sensors
DE19923985B4 (de) * 1999-05-25 2006-12-28 Siemens Ag Sensorbaugruppe mit einem an einer Wand montierbaren Gehäuse
IT1313816B1 (it) * 1999-11-03 2002-09-23 Gefran Sensori S R L Dispositivo sensore di pressione ad elevata precisione
DE10022124B4 (de) * 2000-05-06 2010-01-14 Wabco Gmbh Elektronisches Steuergerät
EP1664165B1 (fr) * 2003-09-05 2013-11-13 Dow Global Technologies LLC Compositions de resine ameliorees pour revetement par extrusion
DE102004018869B4 (de) * 2004-04-19 2008-05-08 Siemens Ag Vorrichtung zur Erfassung der Bewegung eines bewegbaren Bauteils
JP4564775B2 (ja) * 2004-04-26 2010-10-20 日立オートモティブシステムズ株式会社 液体及び気体用圧力検出装置
JP2007064837A (ja) * 2005-08-31 2007-03-15 Denso Corp 圧力センサ
DE102006018031B4 (de) 2006-04-19 2019-07-11 Robert Bosch Gmbh Sensoranordnung und Verfahren zum Auslösen einer Rückhaltevorrichtung
DE102006058301B4 (de) * 2006-12-11 2016-12-29 Robert Bosch Gmbh Luftdrucksensor für eine Seitenaufprallerkennung
US7380458B1 (en) * 2007-03-02 2008-06-03 Autoliv Asp, Inc. Pressure sensor port

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02107416A (ja) * 1988-10-17 1990-04-19 Three Bond Co Ltd 複合物品の成形方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010000526A1 *

Also Published As

Publication number Publication date
US20110174071A1 (en) 2011-07-21
DE102008040155A1 (de) 2010-01-07
US8707783B2 (en) 2014-04-29
CN102084222A (zh) 2011-06-01
CN102084222B (zh) 2013-03-06
JP2011526363A (ja) 2011-10-06
WO2010000526A1 (fr) 2010-01-07
JP5449338B2 (ja) 2014-03-19

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