CN1162559A - 振动接收器及其制造方法 - Google Patents
振动接收器及其制造方法 Download PDFInfo
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- CN1162559A CN1162559A CN97104568A CN97104568A CN1162559A CN 1162559 A CN1162559 A CN 1162559A CN 97104568 A CN97104568 A CN 97104568A CN 97104568 A CN97104568 A CN 97104568A CN 1162559 A CN1162559 A CN 1162559A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
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- 230000000694 effects Effects 0.000 claims description 3
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- 229910001369 Brass Inorganic materials 0.000 claims 1
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- 239000000919 ceramic Substances 0.000 description 8
- 238000005474 detonation Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
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- 238000001746 injection moulding Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
- G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
- G01L23/222—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines using piezoelectric devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
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- Engineering & Computer Science (AREA)
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- Measuring Fluid Pressure (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Testing Of Engines (AREA)
Abstract
一种带有承压套筒的振动接收器及其制造方法。该振动接收器带有间接的或直接的固定装置,该固定装置被导引通过一个在承压套筒(2)中的中心开孔(12),该承压套筒(2)以其支承面(3)压紧在产生振动的结构件上。检测器件(6)结合一个盘形弹簧(8)在一个轴向预应力作用下在径向外侧保持在承压套筒(2)上;检测器件通过盘形弹簧跟承压套筒在整个圆周上进行激光焊接而被压紧。
Description
本发明涉及一种按主权利要求的前序部份和并列的方法权利要求的振动接收器及其制造方法。
DE-OS44 03 660已公开了一种带有一个金属承压套筒的、用作内燃机的爆震传感器(Klopfsensor)的振动接收器。该振动接收器通过一个支承部位牢固地附着在其振动要进行检测的结构件上。要检测的振动在此处是内燃机在运行中的爆击声(Klopfgerusch),该振动通过承压套筒传导到一个压电陶瓷检测器上,并转换成用作爆震传感器的振动接收器的一种可计值的输出信号。检测器的安装和张紧在承压套管上的方式以及固定到振动着的结构件上的方式,在此对于制造方法有很大的影响。
带有本发明的主权利要求的特征部份的特征的开头所述类型的振动接收器的优点在于,盘形弹簧以简单方式通过激光固定到承压套筒上,就不需要在装配振动接收器时进行例如旋紧螺纹环这样的烦杂的机械安装步骤。公知的旋紧螺纹环的方式可能导致灵敏的检测器件发生扭转。在本发明的振动接收器中,在张紧检测器件的为产生机械预应力所需的压力,仅是沿轴向方向的。
在本发明的振动接收器的一种有利的制造方法中,在一个轴向预应力的作用下的盘形弹簧仅是在装配过程中用激光焊接在承压套筒的整个外周上。在焊缝固化后仍继续保持住这个预应力,并且承压套筒带着被夹紧的检测器件的整个结构可以用一种塑料材料进行注塑包住并上紧到例如汽车的发动机组上的产生振动的结构件上。
本发明的其它有利的结构发展给出在各从属权利要求中。
本发明的振动接收器的一个实施例借助于附图进行说明。
图1示出通过一个用作爆震传感器的振动接收器的纵向截面。
在图1中,示出一个用作内燃机爆震传感器的振动接收器带有一个壳体1,其内设有一个承压套筒2,此承压套筒以其下支承面3贴放在一个其振动要被检测的发动机的未示出的壳体上。在承压套筒2的外周上,从下支承面3起算设有:一个绝缘片4、一个接线片5、一个作为检测器件的压电陶瓷盘6,其上又是一个第二接线片5和一个第二绝缘片4。在此结构上面安放一个测震体(seismische Mass)7,这样的结构跟一个固定在承压套筒2上的盘形弹簧8结合,在轴向上沿测震体7和压电陶瓷盘6的方向产生一个预应力。
在由例如聚氨酯或玻璃纤维增强的聚酰胺(PA66 GF35)这样的塑料材料制成的并特别是通过注塑工艺制成的壳体1的一个一体成型的连接部10中,注塑嵌入一条连接电缆11。该连接电缆11的导体分别跟在压电陶瓷盘6两侧上的两片接线片5相连并将压电陶瓷盘6在压力负荷下产生的电压传送出去。一个未示出的固定螺栓伸入承压套筒2的中心孔12内,整个爆震传感器可通过此螺栓间接或直接地固定到内燃机的壳体上。
在安装这种爆震传感器时,由固定螺栓施加的全部转矩传到承压套筒2上、也就是说没有力通过紧固作用到压电陶瓷盘6上。压电陶瓷盘6所需的预应力在此是通过以下的方式产生的:盘形弹簧8首先机械地向下压到测震体7上,然后在在盘形弹簧8与金属承压套筒2之间的连接部位上用激光在承压套筒2的整个外周上进行焊接(激光焊接/焊缝31)。焊缝31在完成冷却固化后即使没有其它外部影响也保持住这个预应力。
这个剩下的预应力选择成使得压电陶瓷盘6在其电信号不持续地弱化的情况下刚好有可承受的轴向力作用在其上,而这个轴向力还跟承压套筒2的垫膨胀以及在安装时的不可避免的压紧作用(Stauchung)完全无关。从测震体7来的与内燃机的振动成比例地施加的脉动在压电陶瓷盘中转化成电压脉冲,这些电压脉冲可在一个相应的测量仪器上读出并可转送到一个控制仪器中去。
Claims (4)
1.一种带有一个承压套筒的振动接收器,这种振动接收器带有:
一个间接的或直接的固定装置,该固定装置被导引通过一个在承压套筒(2)中的中心开孔(12),该承压套筒(2)以其支承面(3)压紧在产生振动的结构件上;和
检测器件(6),该检测器件结合一个盘形弹簧(8)在一个轴向预应力作用下在径向外侧保持在承压套筒(2)上;
其特征在于,
该盘形弹簧(8)在承压套筒(2)的整个外周上跟承压套筒用激光焊接(31)焊接在一起。
2.按权利要求1所述的振动接收器,其特征在于,承压套筒(2)由金属(钢/黄铜)制成。
3.按权利要求1或2所述的振动接收器的制造方法,其特征在于,在有一个外部轴向预应力作用下进行组装时,盘形弹簧(8)跟承压套筒(2)在整个周边上连续地进行激光焊接(31),在焊缝固化后在没有外部影响下保持住预应力。
4.按权利要求3所述的方法,其特征在于,为了完成激光焊接(31),激光束被导引顺着在盘形弹簧(8)与承压套筒(2)之间的连接部位成圆形导行。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19612541.3 | 1996-03-29 | ||
DE19612541A DE19612541A1 (de) | 1996-03-29 | 1996-03-29 | Schwingungsaufnehmer und Verfahren zu dessen Herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1162559A true CN1162559A (zh) | 1997-10-22 |
CN1079534C CN1079534C (zh) | 2002-02-20 |
Family
ID=7789849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97104568A Expired - Fee Related CN1079534C (zh) | 1996-03-29 | 1997-03-27 | 振动接收器及其制造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5739418A (zh) |
JP (1) | JPH1030956A (zh) |
CN (1) | CN1079534C (zh) |
DE (1) | DE19612541A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1760654B (zh) * | 2004-10-15 | 2011-07-13 | 三菱电机株式会社 | 爆震传感器制造方法 |
CN101629863B (zh) * | 2008-07-14 | 2012-08-08 | 日本特殊陶业株式会社 | 爆震传感器 |
CN107110732A (zh) * | 2015-01-09 | 2017-08-29 | 罗伯特·博世有限公司 | 用于接收引起振动的构件的振动的振动接收装置 |
CN107727312A (zh) * | 2016-08-10 | 2018-02-23 | 罗伯特·博世有限公司 | 用于接收引起振动的构件的振动的振动接收器 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19829379C2 (de) * | 1998-07-01 | 2002-11-07 | Bosch Gmbh Robert | Schwingungsaufnehmer mit einer Druckhülse |
DE19829409C2 (de) * | 1998-07-01 | 2003-11-13 | Bosch Gmbh Robert | Schwingungsaufnehmer mit einer Druckhülse |
DE19829407A1 (de) * | 1998-07-01 | 2000-01-13 | Bosch Gmbh Robert | Schwingungsaufnehmer mit einer Druckhülse |
DE10009169B4 (de) * | 2000-02-26 | 2004-02-19 | Robert Bosch Gmbh | Schwingungsaufnehmer mit einer Druckhülse |
US6418791B1 (en) | 2000-03-22 | 2002-07-16 | Abb Technology Ag | System and method for acoustic integrity monitoring |
DE10044478C2 (de) * | 2000-09-08 | 2002-11-28 | Bosch Gmbh Robert | Schwingungsaufnehmer bzw. Isolierscheibe für einen Schwingungsaufnehmer |
DE10044479B4 (de) * | 2000-09-08 | 2005-07-21 | Robert Bosch Gmbh | Schwingungsaufnehmer zur Befestigung an einem Schwingungen aufweisenden Bauteil |
DE10044476A1 (de) * | 2000-09-08 | 2002-04-04 | Bosch Gmbh Robert | Schwingungsaufnehmer zur mittelbaren oder unmittelbaren Befestigung an einem Schwingungen aufweisenden Bauteil |
JP4222196B2 (ja) * | 2003-12-01 | 2009-02-12 | 株式会社デンソー | 電気回路機器の破壊防止構造 |
US7383733B2 (en) * | 2005-09-30 | 2008-06-10 | Jennings Technology | Method and apparatus for the sonic detection of high pressure conditions in a vacuum switching device |
DE102016224801A1 (de) | 2016-12-13 | 2018-06-14 | Robert Bosch Gmbh | Schwingungsaufnehmer zum Aufnehmen von Schwingungen eines Schwingungen verursachenden Bauteils |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0543391Y2 (zh) * | 1987-10-01 | 1993-11-01 | ||
JPH0512740Y2 (zh) * | 1988-01-11 | 1993-04-02 | ||
DE4007349A1 (de) * | 1989-03-10 | 1990-09-13 | Mitsubishi Electric Corp | Beschleunigungsdetektor |
JPH0363528A (ja) * | 1989-08-01 | 1991-03-19 | Mitsubishi Electric Corp | 振動検出器 |
DE4123786A1 (de) * | 1991-07-18 | 1993-01-21 | Bosch Gmbh Robert | Klopfsensor |
FR2703772B1 (fr) * | 1993-04-10 | 1995-05-19 | Bosch Gmbh Robert | Douille de pression, notamment pour un capteur de cognement. |
DE4403660B4 (de) * | 1993-04-10 | 2006-08-10 | Robert Bosch Gmbh | Druckhülse |
US5329809A (en) * | 1993-04-22 | 1994-07-19 | General Motors Corporation | Non-intrusive cylinder pressure sensor |
-
1996
- 1996-03-29 DE DE19612541A patent/DE19612541A1/de not_active Withdrawn
-
1997
- 1997-03-04 US US08/811,375 patent/US5739418A/en not_active Expired - Fee Related
- 1997-03-26 JP JP9072512A patent/JPH1030956A/ja not_active Abandoned
- 1997-03-27 CN CN97104568A patent/CN1079534C/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1760654B (zh) * | 2004-10-15 | 2011-07-13 | 三菱电机株式会社 | 爆震传感器制造方法 |
CN101629863B (zh) * | 2008-07-14 | 2012-08-08 | 日本特殊陶业株式会社 | 爆震传感器 |
US8266948B2 (en) | 2008-07-14 | 2012-09-18 | Ngk Spark Plug Co., Ltd. | Knocking sensor |
CN107110732A (zh) * | 2015-01-09 | 2017-08-29 | 罗伯特·博世有限公司 | 用于接收引起振动的构件的振动的振动接收装置 |
CN107727312A (zh) * | 2016-08-10 | 2018-02-23 | 罗伯特·博世有限公司 | 用于接收引起振动的构件的振动的振动接收器 |
Also Published As
Publication number | Publication date |
---|---|
CN1079534C (zh) | 2002-02-20 |
US5739418A (en) | 1998-04-14 |
JPH1030956A (ja) | 1998-02-03 |
DE19612541A1 (de) | 1997-10-02 |
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