EP1040365B1 - Ultraschallsensor - Google Patents
Ultraschallsensor Download PDFInfo
- Publication number
- EP1040365B1 EP1040365B1 EP98965114A EP98965114A EP1040365B1 EP 1040365 B1 EP1040365 B1 EP 1040365B1 EP 98965114 A EP98965114 A EP 98965114A EP 98965114 A EP98965114 A EP 98965114A EP 1040365 B1 EP1040365 B1 EP 1040365B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier
- ultrasonic sensor
- sensor according
- hood
- ultrasonic
- 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
Links
- 238000002604 ultrasonography Methods 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000004382 potting Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- AOSZTAHDEDLTLQ-AZKQZHLXSA-N (1S,2S,4R,8S,9S,11S,12R,13S,19S)-6-[(3-chlorophenyl)methyl]-12,19-difluoro-11-hydroxy-8-(2-hydroxyacetyl)-9,13-dimethyl-6-azapentacyclo[10.8.0.02,9.04,8.013,18]icosa-14,17-dien-16-one Chemical compound C([C@@H]1C[C@H]2[C@H]3[C@]([C@]4(C=CC(=O)C=C4[C@@H](F)C3)C)(F)[C@@H](O)C[C@@]2([C@@]1(C1)C(=O)CO)C)N1CC1=CC=CC(Cl)=C1 AOSZTAHDEDLTLQ-AZKQZHLXSA-N 0.000 description 1
- KKQWHYGECTYFIA-UHFFFAOYSA-N 2,5-dichlorobiphenyl Chemical compound ClC1=CC=C(Cl)C(C=2C=CC=CC=2)=C1 KKQWHYGECTYFIA-UHFFFAOYSA-N 0.000 description 1
- 229940126657 Compound 17 Drugs 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
- G10K9/22—Mountings; Casings
Definitions
- the invention relates to an ultrasonic sensor, consisting of a housing with a Connector, an ultrasonic transducer and a circuit board.
- a piezo transducer in which one is made of an elastic one Material formed plug is inserted into a housing.
- the plug carries on the one hand an ultrasonic transducer and on the other hand a circuit board.
- An electrical contact too the printed circuit board is made via a plug arranged on the outer housing.
- From the DE 36 218 19 A1 discloses a device for measuring the air gap in which a fan creates an air flow around a sensor and the air is driven through an outlet nozzle.
- a sensor is arranged on a holding sieve, which is used to measure the distance in the air flow.
- the holding sieve is inside one Housing arranged, the sensor and a circuit board supported by the retaining screen be next to a connector contact on an end wall of the housing Air inlet openings is arranged.
- Ultrasonic sensors used in the automotive industry for distance measurement are usually with a potting compound against harmful external influences sealed.
- the sensors are manufactured in a complex riser casting process potted and cured in the oven.
- Pot-like ultrasonic transducers are used, which consist of an annular wall and a membrane-like floor.
- the object of the present invention is to provide an ultrasonic sensor which is compact and can be assembled and cast easily and cheaply.
- the housing is divided into a carrier and a hood enclosing the carrier and in that the carrier the circuit board, the plug connection and carries the ultrasound transducer.
- the ultrasonic sensor completely with Potting compound filled and tight. So he is against protected from external influences.
- Another advantageous embodiment of the Ultrasonic sensor according to the invention is that the PCB mounted on the carrier with switching elements not yet installed hood is accessible from both sides. you the circuit on the circuit board can thus easily adjust and check and any corrections easily carry out.
- the carrier has an annular receptacle for the Ultrasonic transducer and that the connector on Carrier is formed, the plug connection with the Recording is connected by webs.
- the carrier can thus can be loaded very easily, because the already assembled Parts of the ultrasonic sensor during assembly of the remaining parts are fixed to the carrier.
- Another advantageous embodiment of the invention is that two webs are formed on the side of the carrier and the circuit board is mounted in between. The This makes the ultrasonic sensor very compact, and that PCB is mechanically well protected.
- the hood is slid over the carrier along the webs.
- the potting process is simplified because the hood remains fixed during pouring and does not slip can.
- the hood itself at two abutting Sides is open. This eliminates the time-consuming process Rising molding process of conventional sensors; the Ultrasound sensor can easily be assembled by be shed at the top.
- Another advantageous embodiment of the invention is that an open side of the hood by one flange formed on the support is closed. The simplifies production, since the potting compound during the Curing requires no further form. It also results a mechanically durable connection.
- the ultrasonic transducer with a Cap is fixed to the carrier. That makes it easier also the assembly, since the ultrasonic transducer is included is fixed, and provides a sealed connection to the Carrier.
- the ultrasonic sensor shown consists of a Ultrasonic transducer 1 with an elastic decoupling ring 2 and a cap 3.
- the converter itself contains a mechanism by which ultrasonic waves are emitted electrical signals generated and received and in electrical signals can be implemented. Since it is the ultrasonic transducer around a sensitive vibrating System, it must be from the rest of the ultrasonic sensor decoupled and vibration-damped in the ultrasonic sensor be stored. For this, the decoupling ring 2 intended. In addition to the sealing function, it also performs the Damping unwanted vibrations.
- the carrier 4 consists of a plug connection 5, one annular receptacle 6 for the ultrasonic transducer 1 with a locking groove 7 for the cap 3 and two Crosspieces 8, the recording 6 of the Connect the ultrasonic transducer 1 to the connector 5.
- the ultrasonic sensor is in one state shown in which it is completely pre-assembled.
- the Ultrasonic transducer 1 is in its cap 3 Recording 6 attached to the carrier 4.
- the circuit board 9 is with the connecting lines of the ultrasonic transducer 12 and Plug connection 13 connected and fixed in the carrier 4.
- the potting compound 17 (Fig. 3) fills all cavities in and around the ultrasonic transducer PCB around and ensures a mechanical durable and tight encapsulation of the ultrasonic sensor.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
Description
und den Ultraschallwandler trägt. Das hat den Vorteil, daß alle Bauteile auch nach dem Vormontieren frei zugänglich sind und geprüft werden können.
- Fig. 1
- als Explosionszeichnung die Einzelteile eines kompletten Ultraschallsensors,
- Fig. 2
- den vormontierten Ultraschallsensor vor dem Aufschieben der Haube auf den Träger und
- Fig. 3
- den fertigen Ultraschallsensor.
Claims (9)
- Ultraschallsensor, bestehend aus einem Gehäuse mit einer Steckverbindung (5), einem Ultraschallwandler (1) und einer Leiterplatte (9), wobei das Gehäuse in einen Träger (4) und eine den Träger umschließende Haube (10) unterteilt ist und wobei der Träger (4) die Leiterplatte (9), die Steckverbindung (5) und den Ultraschallwandler (1) trägt.
- Ultraschallsensor nach Anspruch 1, dadurch gekennzeichnet, daß der Ultraschallsensor vollständig mit Vergußmasse ausgefüllt ist und dicht ist.
- Ultraschallsensor nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die an dem Träger (4) montierte Leiterplatte (9) mit Schaltelementen bei noch nicht montierter Haube (10) beidseitig zugänglich ist.
- Ultraschallsensor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Träger (4) eine ringförmige Aufnahme (6) für den Ultraschallwardler (1) besitzt und daß die Steckverbindung (5) am Träger (4) angeformt ist, wobei die Steckverbindung (5) mit der Aufnahme (6) durch Stege (8) verbunden ist.
- Ultraschallsensor nach Anspruch 4, dadurch gekennzeichnet, daß zwei Stege (8) seitlich am Träger (4) angeformt sind und die Leiterplatte (9) dazwischen montiert ist.
- Ultraschallsensor nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, daß die Haube (10) entlang der Stege (8) über den Träger (4) geschoben ist.
- Ultraschallsensor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Haube (10) selbst an zwei aneinanderstoßenden Seiten offen ist.
- Ultraschallsensor nach Anspruch 7, dadurch gekennzeichnet, daß eine offene Seite der Haube (10) durch einen am Träger (4) angeformten Flansch (11) verschlossen ist.
- Ultraschallsensor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Ultraschallwandler mit einer Überwurfkappe (3) an dem Träger (4) fixiert ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19755729 | 1997-12-15 | ||
DE19755729A DE19755729A1 (de) | 1997-12-15 | 1997-12-15 | Ultraschallsensor |
PCT/DE1998/003655 WO1999031526A1 (de) | 1997-12-15 | 1998-12-14 | Ultraschallsensor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1040365A1 EP1040365A1 (de) | 2000-10-04 |
EP1040365B1 true EP1040365B1 (de) | 2003-07-09 |
Family
ID=7851989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98965114A Expired - Lifetime EP1040365B1 (de) | 1997-12-15 | 1998-12-14 | Ultraschallsensor |
Country Status (4)
Country | Link |
---|---|
US (1) | US6532193B1 (de) |
EP (1) | EP1040365B1 (de) |
DE (2) | DE19755729A1 (de) |
WO (1) | WO1999031526A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10000924B4 (de) * | 2000-01-12 | 2011-11-24 | Volkswagen Ag | Ultraschallsensor |
US6982532B2 (en) * | 2003-12-08 | 2006-01-03 | A. O. Smith Corporation | Electric machine |
DE102005009620A1 (de) * | 2005-02-23 | 2006-08-31 | Valeo Schalter Und Sensoren Gmbh | Ultraschallsensor |
JP4438667B2 (ja) * | 2005-03-29 | 2010-03-24 | 株式会社デンソー | 超音波センサ及び超音波振動子 |
DE102006007710A1 (de) * | 2006-02-14 | 2007-08-23 | Valeo Schalter Und Sensoren Gmbh | Sensorhalterung, insbesondere zur Halterung von Abstandssensoren an Fahrzeugteilen |
DE102006040344B4 (de) * | 2006-08-29 | 2022-09-29 | Robert Bosch Gmbh | Haltevorrichtung für einen Ultraschallwandler |
JP5386910B2 (ja) * | 2008-09-26 | 2014-01-15 | 株式会社デンソー | 電子回路装置 |
JP5607990B2 (ja) * | 2010-05-14 | 2014-10-15 | パナソニック株式会社 | 超音波センサ |
US8982578B2 (en) * | 2010-10-14 | 2015-03-17 | Tyco Electronics Corporation | Connector system and assembly having integrated protection circuitry |
JP2012198106A (ja) * | 2011-03-22 | 2012-10-18 | Panasonic Corp | 超音波センサ |
DE102017204600A1 (de) * | 2017-03-20 | 2018-09-20 | Robert Bosch Gmbh | Verbinder zum Verbinden von zwei Gehäuseteilen und Gehäuse umfassend zwei Gehäuseteile und mindestens einen Verbinder |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4281404A (en) | 1979-08-27 | 1981-07-28 | Morrow Electronics, Inc. | Depth finding apparatus |
JPH0453586Y2 (de) * | 1986-02-21 | 1992-12-16 | ||
DE3621819C2 (de) * | 1986-06-28 | 1995-05-18 | Mpv Mes Und Prueftechnik Vogt | Verfahren und Vorrichtung zur Luftschall-Abstandsmessung |
US4745893A (en) * | 1986-12-03 | 1988-05-24 | Caterpillar Inc. | Digital oil level sensor |
DE3933474C2 (de) * | 1989-10-06 | 1994-01-27 | Endress Hauser Gmbh Co | Füllstandsmeßgerät |
DE4329055A1 (de) * | 1993-08-28 | 1995-03-02 | Teves Gmbh Alfred | Druckdichter Wandler für Kraftfahrzeuge |
US5659423A (en) * | 1994-09-30 | 1997-08-19 | Donnelly Corporation | Modular variable reflectance mirror assembly |
US5617866A (en) | 1996-01-05 | 1997-04-08 | Acuson Corporation | Modular transducer system |
DE29603390U1 (de) * | 1996-02-24 | 1997-06-26 | Robert Bosch Gmbh, 70469 Stuttgart | Elektronisches Steuergerät |
-
1997
- 1997-12-15 DE DE19755729A patent/DE19755729A1/de not_active Withdrawn
-
1998
- 1998-12-14 EP EP98965114A patent/EP1040365B1/de not_active Expired - Lifetime
- 1998-12-14 WO PCT/DE1998/003655 patent/WO1999031526A1/de active IP Right Grant
- 1998-12-14 DE DE59809001T patent/DE59809001D1/de not_active Expired - Lifetime
- 1998-12-14 US US09/581,957 patent/US6532193B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1040365A1 (de) | 2000-10-04 |
DE59809001D1 (de) | 2003-08-14 |
US6532193B1 (en) | 2003-03-11 |
DE19755729A1 (de) | 1999-06-17 |
WO1999031526A1 (de) | 1999-06-24 |
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