KR20150061443A - ultrasonic sensor for vehicle and manufacturing method of the same - Google Patents

ultrasonic sensor for vehicle and manufacturing method of the same Download PDF

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Publication number
KR20150061443A
KR20150061443A KR1020130145577A KR20130145577A KR20150061443A KR 20150061443 A KR20150061443 A KR 20150061443A KR 1020130145577 A KR1020130145577 A KR 1020130145577A KR 20130145577 A KR20130145577 A KR 20130145577A KR 20150061443 A KR20150061443 A KR 20150061443A
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South Korea
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housing
butadiene
circuit board
vehicle
potting member
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KR1020130145577A
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Korean (ko)
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이대환
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현대모비스 주식회사
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Priority to KR1020130145577A priority Critical patent/KR20150061443A/en
Publication of KR20150061443A publication Critical patent/KR20150061443A/en

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    • 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
    • B60R21/013—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 collisions, impending collisions or roll-over
    • B60R21/0134—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 collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521—Constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60W2420/54—Audio sensitive means, e.g. ultrasound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2015/937—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details
    • G01S2015/938—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details in the bumper area

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

The present invention relates to an ultrasonic detection sensor for a vehicle and a manufacturing method thereof and, especially, to an ultrasonic detection sensor for a vehicle that is capable of improving waterproof and adhesive properties because a potting member for blocking and protecting a circuit board from the outside is made of butadiene and a manufacturing method thereof. The ultrasonic detection sensor for a vehicle of the present invention is formed of; a housing; a sensor cell and a rubber cap combined to the housing; the circuit board embedded in the housing; and the potting member which is filled in the housing and blocks and seals the circuit against the outside. The potting member is made of butadiene.

Description

차량용 초음파 감지센서 및 그 제조방법 { ULTRASONIC SENSOR FOR VEHICLE AND MANUFACTURING METHOD OF THE SAME }BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ultrasound sensor,

본 발명은 차량용 초음파 감지센서 및 그 제조방법에 관한 것으로서, 특히 회로기판을 외부로부터 차단하여 보호하기 위한 포팅부재가 부타디엔으로 이루어져 수밀성 및 접착성을 향상시킬 수 있는 차량용 초음파 감지센서 및 그 제조방법에 관한 것이다.The present invention relates to an ultrasonic sensor for a vehicle and a method of manufacturing the same. More particularly, the present invention relates to an ultrasonic sensor for vehicle and a method of manufacturing the same, which can improve water tightness and adhesion by using a butadiene as a potting member for shielding a circuit board from the outside .

차량에는 다양한 센서가 장착되는데, 초음파 감지센서는 차량의 전방 및/또는 후방 범퍼에 장착되어, 주/정차시 물체 및 장애물을 감지하여 운전자에게 알려주는 역할을 한다.Various sensors are mounted on the vehicle. The ultrasonic sensor is mounted on the front and / or rear bumper of the vehicle to detect objects and obstacles during the main / stop and inform the driver.

도 1은 종래의 일반적인 차량용 초음파 감지센서의 분해도이고, 도 2는 종래의 일반적인 차량용 초음파 감지센서에 포팅액을 충진하는 상태를 도시한 설명도이다.FIG. 1 is an exploded view of a conventional ultrasonic sensor for a vehicle, and FIG. 2 is an explanatory view showing a state where a potting liquid is filled in a conventional ultrasonic sensor for a vehicle.

도 1 및 도 2에 도시된 바와 같이 종래의 일반적인 차량용 초음파 감지센서는, 하우징(10)과, 센서셀(20)과, 러버캡(30)과, 회로기판(40)과, 포팅부재(60)를 포함하여 이루어진다.1 and 2, a conventional general ultrasonic sensor for a vehicle includes a housing 10, a sensor cell 20, a rubber cap 30, a circuit board 40, a potting member 60 ).

상기 포팅부재(60)는 도 2(a)에 도시된 바와 같이 상기 하우징(10)에 회로기판(40)을 포함한 다른 부품을 조립완료한 후에, 도 2(b)에 도시된 바와 같이 상기 하우징(10)에 액상 상태로 도포되어 경화됨으로써 형성된다.2 (a), the potting member 60 is mounted on the housing 10, after other parts including the circuit board 40 are assembled into the housing 10, as shown in FIG. 2 (b) (10) in a liquid state and cured.

상기 포팅부재(60)는 상기 하우징(10)에 접착되는데, 상기 하우징(10)의 내부로 수분 등이 유입되어 회로기판(40)에 쇼트 등의 문제가 발생되지 않도록 하기 위해, 높은 접착력과 수밀성 및 기밀성이 요구된다.The potting member 60 is adhered to the housing 10 so that moisture and the like may flow into the housing 10 to prevent the circuit board 40 from being short-circuited. And airtightness.

이러한 상기 포팅부재(60)로써, 종래에는 일반적으로 실리콘을 사용하고 있다.As the potting member 60, silicon is generally used conventionally.

그러나, 외부 환경 등에 의해 상기 실리콘은 상기 하우징(10)으로부터 이격되어 상기 실리콘(포팅부재)과 하우징(10) 사이에 갭이 발생됨으로써, 그 갭을 통해 외부의 수분 등이 상기 하우징(10) 내부로 유입되는 등의 문제가 발생되고 있다.However, since the silicon is spaced from the housing 10 due to an external environment or the like, a gap is generated between the silicon (potting member) and the housing 10, so that external moisture or the like may flow into the inside of the housing 10 And the like.

대한민국 공개특허공보 제10-2012-0053316호Korean Patent Publication No. 10-2012-0053316

본 발명은 전술한 문제점을 해결하기 위한 것으로써, 하우징과 포팅부재와의 접착력을 증대시켜 하우징의 내부로 수분 등이 유입되지 않도록 하여 제품의 내구성 등을 향상시킬 수 있는 차량용 초음파 감지센서 및 그 제조방법을 제공하는데 그 목적이 있다.Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a vehicle ultrasonic sensor capable of enhancing the durability of a product by preventing adhesion of moisture and the like to the inside of the housing by increasing the adhesive force between the housing and the potting member, The purpose of the method is to provide.

상기 목적을 달성하기 위하여 본 발명의 차량용 초음파 감지센서는, 하우징과; 상기 하우징에 결합되는 센서셀 및 러버캡과; 상기 하우징에 내장되는 회로기판과; 상기 하우징에 충진되어 상기 회로기판을 외부로부터 차단하여 기밀시키는 포팅부재로 이루어지되, 상기 포팅부재는 부타디엔으로 이루어진 것을 특징으로 한다.According to an aspect of the present invention, there is provided an ultrasonic sensor for a vehicle comprising: a housing; A sensor cell and a rubber cap coupled to the housing; A circuit board embedded in the housing; And a potting member filled in the housing to seal the circuit board from the outside so as to be hermetically sealed, wherein the potting member is made of butadiene.

상기 부타디엔은 액상으로 이루어져, 상기 하우징에 충진된 후 경화된다.The butadiene is in a liquid phase and is filled in the housing and then hardened.

상기 부타디엔은 상기 회로기판의 상부를 덮고, 상기 하우징의 측벽에 밀착되어 결합된다.The butadiene covers the top of the circuit board and is tightly bonded to the side wall of the housing.

또한, 상기 목적을 달성하기 위하여 본 발명의 차량용 초음파 감지센서의 제조방법은, 하우징과; 상기 하우징에 결합되는 센서셀 및 러버캡과; 상기 하우징에 내장되는 회로기판과; 상기 하우징에 충진되어 상기 회로기판을 외부로부터 차단하여 기밀시키는 포팅부재로 이루어진 차량용 초음파 감지센서의 제조방법에 있어서, 상기 포팅부재는 부타디엔으로 이루어져 상기 하우징에 충진되는 것을 특징으로 한다.According to another aspect of the present invention, there is provided a method of manufacturing an ultrasonic sensor for a vehicle, including: a housing; A sensor cell and a rubber cap coupled to the housing; A circuit board embedded in the housing; And a potting member that is filled in the housing and blocks the circuit board from the outside to be hermetically sealed, wherein the potting member is made of butadiene and is filled in the housing.

이때, 상기 부타디엔은 액상으로 이루어져 상기 하우징에 충진된 후 경화되도록 한다.At this time, the butadiene is in a liquid phase and is filled in the housing and cured.

이상에서 설명한 바와 같은 본 발명의 차량용 초음파 감지센서 및 그 제조방법에 따르면 다음과 같은 효과가 있다.According to the ultrasonic sensor for vehicle and the method of manufacturing the same as described above, the following effects can be obtained.

위와 같이 상기 포팅부재로써 부타디엔을 사용함으로써, 상기 하우징과 포팅부재의 접착력을 증대시키고, 높은 기밀성 및 수밀성에 의해 외부의 수분 등이 상기 하우징의 내부로 침투되어 회로기판에 도달하는 것을 보다 확실하게 방지할 수 있어, 제품의 내구성 등을 향상시킬 수 있다.By using butadiene as the potting material as described above, the adhesive force between the housing and the potting member is increased, and the high moisture-tightness and watertightness prevent the outside moisture from penetrating into the housing and reaching the circuit board more reliably So that the durability and the like of the product can be improved.

도 1은 종래의 일반적인 차량용 초음파 감지센서의 분해도,
도 2는 종래의 일반적인 차량용 초음파 감지센서에 포팅액을 충진하는 상태를 도시한 설명도,
도 3은 본 발명의 실시예에 따른 포팅액이 충진된 차량용 초음파 감지센서의 사시도,
도 4는 악의조건하에서의 포팅액의 종류에 따른 접착력 비교표,
도 5 및 도 6은 부타디엔과 실리콘의 수밀성을 테스트한 비교사진.1 is an exploded view of a conventional ultrasonic sensor for a vehicle,
FIG. 2 is an explanatory view showing a state in which a potting liquid is filled into a conventional ultrasonic sensor for a vehicle,
3 is a perspective view of an ultrasonic sensor for a vehicle filled with a potting liquid according to an embodiment of the present invention,
FIG. 4 is a table showing the adhesion force according to the type of the potting liquid under the condition of bad,
Figs. 5 and 6 are photographs showing comparison between water resistance of butadiene and silicone.

도 3은 본 발명의 실시예에 따른 포팅액이 충진된 차량용 초음파 감지센서의 사시도이다.3 is a perspective view of an ultrasonic sensor for a vehicle filled with a potting liquid according to an embodiment of the present invention.

도 3에 도시된 바와 같이 본 발명의 차량용 초음파 감지센서는, 하우징(10)과, 센서셀(20)과, 러버캡(30)과, 회로기판(40)과, 포팅부재(50)를 포함하여 이루어진다.3, the ultrasonic sensor for a vehicle of the present invention includes a housing 10, a sensor cell 20, a rubber cap 30, a circuit board 40, and a potting member 50 .

상기 하우징(10)은 일단과 타단이 개방 형성되어 있다.One end and the other end of the housing 10 are opened.

상기 러버캡(30)은 중공형상으로 형성되어, 상기 하우징(10)의 일단에서 상기 센서셀(20)을 상기 하우징(10)에 결합시킨다.The rubber cap 30 is formed in a hollow shape to couple the sensor cell 20 to the housing 10 at one end of the housing 10.

이러한 상기 러버캡(30)은 상기 하우징(10)으로부터 전달되는 진동을 상기 센서셀(20)에 전달함에 있어 완충시키는 역할도 함께 수행한다.The rubber cap 30 also functions to buffer the vibration transmitted from the housing 10 to the sensor cell 20.

상기 회로기판(40)은 평판 형상으로 이루어져 상기 하우징(10)의 타단을 통해 상기 하우징(10)의 내부에 장착된다.The circuit board 40 has a flat plate shape and is mounted inside the housing 10 through the other end of the housing 10.

이러한 상기 하우징(10), 센서셀(20), 러버캡(30) 및 회로기판(40)은 종래의 차량용 초음파 감지센서를 이루는 구성과 동일한바, 이에 대한 더 자세한 설명은 생략한다.The housing 10, the sensor cell 20, the rubber cap 30, and the circuit board 40 are the same as those of a conventional ultrasonic sensor for a vehicle, and a detailed description thereof will be omitted.

상기 포팅부재(50)는 상기 하우징(10)의 타단에 충진되어 상기 하우징(10)에 내장된 상기 회로기판(40)을 외부로부터 차단하여 기밀시키는 역할을 한다.The potting member 50 is filled in the other end of the housing 10 to block the circuit board 40 built in the housing 10 from the outside and hermetically seal it.

본 발명에서 상기 포팅부재(50)는 부타디엔으로 이루어진다.In the present invention, the potting member 50 is made of butadiene.

보다 구체적으로, 상기 포팅부재(50)는 액상의 부타디엔이 상기 하우징(10)에 충진된 후 경화되어 형성된다.More specifically, the potting member (50) is formed by curing the liquid butadiene after filling the housing (10).

본 발명에서 포팅부재(50)로 사용되는 부타디엔은, 종래의 포팅부재로 사용되었던 실리콘과 비교하여, 접착성, 기밀성, 수밀성 등이 훨씬 우수하다.The butadiene used as the potting member 50 in the present invention is far superior in adhesion, airtightness, water tightness, and the like compared to silicon used as a conventional potting member.

상기 부타디엔은 상기 하우징(10)의 개방된 타단을 통해 주입되어 상기 회로기판(40)의 상부를 덮고, 상기 하우징(10)의 측벽에 밀착되어 결합됨으로써, 수분 등의 이물질이 상기 하우징(10)의 내부 및 회로기판(40)으로 침투되는 것을 차단한다.The butadiene is injected through the other open end of the housing 10 to cover the upper portion of the circuit board 40 and closely contact with the side wall of the housing 10 so that foreign matter, And the circuit board 40 is blocked.

도 4에는 3가지의 악의조건에서 부타디엔과 실리콘의 접착력을 비교한 것이 나타나 있다.FIG. 4 shows a comparison of adhesion between butadiene and silicone under three evil conditions.

첫번째로, 내살수성 즉 1분간 고수압분사를 한 후 접착력(단위:Psi)을 검사한 결과, 부타디엔은 274 이고, 실리콘은 252 로 나타났다.First, the adhesive strength (unit: Psi) after spraying with water spraying for 1 minute was 274 for butadiene and 252 for silicone.

두번째로, 내한성 즉 -40℃에서 48시간을 방치한 후 접착력을 검사한 결과, 부타디엔은 250 이고, 실리콘은 217 로 나타났다.Secondly, when the cold resistance was maintained at -40 ° C. for 48 hours, the adhesive strength was examined. As a result, butadiene was 250 and silicone was 217.

세번째로, 고습성 즉 50℃온도와 95%RH의 습도 하에서 48시간을 방치한 후 접착력을 검사한 결과, 부타디엔은 305 이고, 실리콘은 239 로 나타났다.Third, after 48 hours of high humidity, i.e., at a temperature of 50 ° C and a humidity of 95% RH, the adhesive strength was examined. As a result, butadiene was 305 and silicone was 239.

위와 같은 실험결과, 부타디엔의 접착력이 실리콘의 접착력보다 우수하다는 것을 알 수 있다.As a result of the above experiment, it can be seen that the adhesion of butadiene is superior to that of silicon.

따라서, 상기 포팅부재(50)로 부타디엔을 사용할 경우에는, 상기 포팅부재(50)가 합성수지로 이루어진 상기 하우징(10)에 보다 잘 접착되어, 상기 하우징(10)과 포팅부재(50) 사이가 이격되어 갭이 발생하는 것을 방지할 수 있다.Therefore, when the butadiene is used as the potting member 50, the potting member 50 is better adhered to the housing 10 made of synthetic resin, and the housing 10 and the potting member 50 are separated from each other So that generation of a gap can be prevented.

도 5 및 도 6은 부타디엔과 실리콘의 수밀성을 테스트한 비교사진이다.Figs. 5 and 6 are comparative photographs showing water-tightness test of butadiene and silicone.

도 5(a)는 2개의 판재를 가운데에 빈공간이 형성되도록 부타디엔을 중공형상으로 접착시킨 것이고, 도 5(b)는 2개의 판재를 가운데에 빈공간이 형성되도록 실리콘을 중공형상으로 접착시킨 것이다.FIG. 5 (a) shows a state in which butadiene is bonded in a hollow shape so as to form an empty space in the center, and FIG. 5 (b) shows a state in which two sheets are bonded in a hollow shape will be.

위와 같이 부타디엔 및 실리콘을 중공형상으로 하여 2개의 판재를 접착시킨 상태에서, 수조에 침수시켜 초음파 등을 가한 결과, 도 5(a)에 도시된 바와 같이 부타디엔의 경우에는 가운데의 빈공간에 아무런 이상이 없었으나, 도 5(b)에 도시된 바와 같이 실리콘의 경우에는 가운데의 빈공간에 수포(물방울)이 발생되었음을 확인할 수 있었다.As shown in Fig. 5 (a), when butadiene and butadiene are hollow and the two plates are adhered to each other, they are immersed in a water tank and subjected to ultrasonic waves. As a result, in the case of butadiene, However, as shown in FIG. 5 (b), in the case of silicon, it was confirmed that water droplets (droplets) were generated in the empty space in the center.

이는, 상기 부타디엔이 실리콘보다 수밀성 및 기밀성이 우수하다는 것을 나타낸다.This indicates that the butadiene is superior in watertightness and airtightness than silicon.

도 6(a)는 2개의 판재를 '∩' 형상으로 부타디엔으로 접착시킨 후 수조에 세워 놓은 것이고, 도 6(b)는 2개의 판재를 '∩' 형상으로 실리콘으로 접착시킨 후 수조에 세워 놓은 것이다.6 (a) shows a state in which two plate materials are adhered with butadiene in the form of "∩" and then stands up in a water tank. FIG. 6 (b) will be.

위와 같은 상태에서 2시간을 방치하여 본 결과, 도 6(a)에 도시된 바와 같이 부타디엔의 경우에는 가운데의 빈공간에 수위가 차오르지 않았으나, 도 6(b)에 도시된 바와 같이 실리콘의 경우에는 가운데의 빈공간에 수위가 차오르는 것을 확인할 수 있었다.As shown in FIG. 6 (a), the water level did not rise in the empty space in the case of butadiene. However, as shown in FIG. 6 (b) We can confirm that the water level rises in the empty space in the center.

이는, 상기 부타디엔이 실리콘보다 수밀성 및 기밀성이 우수하다는 것을 나타낸다.This indicates that the butadiene is superior in watertightness and airtightness than silicon.

위와 같이 상기 포팅부재(50)로써 부타디엔을 사용함으로써, 상기 하우징(10)과 포팅부재(50)의 접착력을 증대시키고, 높은 기밀성 및 수밀성에 의해 외부의 수분 등이 상기 하우징(10)의 내부로 침투되어 회로기판(40)에 도달하는 것을 보다 확실하게 방지할 수 있다.By using butadiene as the potting member 50 as described above, it is possible to increase the adhesive force between the housing 10 and the potting member 50, and to prevent the external moisture or the like from entering the interior of the housing 10 due to high air- It is possible to more reliably prevent penetration and reaching the circuit board 40.

본 발명인 차량용 초음파 감지센서는 전술한 실시예에 국한하지 않고, 본 발명의 기술 사상이 허용되는 범위 내에서 다양하게 변형하여 실시할 수 있다.The ultrasonic sensor for vehicle according to the present invention is not limited to the above-described embodiments, and can be variously modified and embodied within the scope of the technical idea of the present invention.

10 : 하우징, 20 : 센서셀, 30 : 러버캡, 40 : 회로기판, 50 : 포팅부재,10: housing, 20: sensor cell, 30: rubber cap, 40: circuit board, 50:

Claims (5)

하우징과;
상기 하우징에 결합되는 센서셀 및 러버캡과;
상기 하우징에 내장되는 회로기판과;
상기 하우징에 충진되어 상기 회로기판을 외부로부터 차단하여 기밀시키는 포팅부재로 이루어지되,
상기 포팅부재는 부타디엔으로 이루어진 것을 특징으로 하는 차량용 초음파 감지센서.A housing;
A sensor cell and a rubber cap coupled to the housing;
A circuit board embedded in the housing;
And a porting member filled in the housing to seal the circuit board from the outside to hermetically seal the circuit board,
Wherein the potting member is made of butadiene. 청구항1에 있어서,
상기 부타디엔은 액상으로 이루어져, 상기 하우징에 충진된 후 경화되는 것을 특징으로 하는 차량용 초음파 감지센서.The method according to claim 1,
Wherein the butadiene is in a liquid phase and is filled in the housing and then cured. 청구항1에 있어서,
상기 부타디엔은 상기 회로기판의 상부를 덮고, 상기 하우징의 측벽에 밀착되어 결합되는 것을 특징으로 하는 차량용 초음파 감지센서.The method according to claim 1,
Wherein the butadiene covers an upper portion of the circuit board and is closely attached to a side wall of the housing. 하우징과; 상기 하우징에 결합되는 센서셀 및 러버캡과; 상기 하우징에 내장되는 회로기판과; 상기 하우징에 충진되어 상기 회로기판을 외부로부터 차단하여 기밀시키는 포팅부재로 이루어진 차량용 초음파 감지센서의 제조방법에 있어서,
상기 포팅부재는 부타디엔으로 이루어져 상기 하우징에 충진되는 것을 특징으로 하는 차량용 초음파 감지센서의 제조방법.A housing; A sensor cell and a rubber cap coupled to the housing; A circuit board embedded in the housing; And a potting member filled in the housing to seal the circuit board from the outside to airtightly seal the ultrasonic sensor,
Wherein the potting member is made of butadiene and is filled in the housing. 청구항4에 있어서,
상기 부타디엔은 액상으로 이루어져 상기 하우징에 충진된 후 경화되는 것을 특징으로 하는 차량용 초음파 감지센서의 제조방법.
The method of claim 4,
Wherein the butadiene is in a liquid phase and is filled in the housing and then cured.
KR1020130145577A 2013-11-27 2013-11-27 ultrasonic sensor for vehicle and manufacturing method of the same KR20150061443A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190082257A (en) * 2016-11-03 2019-07-09 로베르트 보쉬 게엠베하 Ultrasonic transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190082257A (en) * 2016-11-03 2019-07-09 로베르트 보쉬 게엠베하 Ultrasonic transducer

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