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1. 发明专利

JP2005147926A Rotation position sensor, and electronic control type throttle device for internal combustion engine 有权
标题翻译：旋转位置传感器和电子控制型内燃机用节流装置
公开(公告)号：JP2005147926A
公开(公告)日：2005-06-09
申请号：JP2003387717
申请日：2003-11-18
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： MIYATA KENJI , KUBOTA MASANORI , KATAGISHI KENICHI , ONO KENJI , SOSHINO MASAHIKO , SUDO MITSURU
IPC分类号： G01B7/30 , F02D9/00 , F02D11/10 , F02D35/00 , G01B7/00 , G01D5/14 , G01D5/16
CPC分类号： F02D11/106 , F02D2011/102 , F02D2400/22 , G01D5/145
摘要： PROBLEM TO BE SOLVED: To provide a rotation position sensor, formed into an accurate shape on a magnetic face and having compact and simple structure, and to provide an electronic control type throttle device for an internal combustion engine. SOLUTION: This rotation position sensor has a pair of substantially semicircular magnetic substance cores, arranged oppositely to each other via a magnetic induction element; and a pair of substantially circular-arc-shaped magnetic substance cores arranged oppositely to each other along the outer circumference of the substantially semicircular magnetic substance cores, and a permanent magnet fixed contacting with at least one of the substantially circular-arc-shaped magnetic substance cores. In the rotation position sensor, the magnetic flux from the permanent magnet is arranged to flow through the substantially circular-arc-shaped magnetic substance core, the substantially semicircular magnetic substance cores, the substantially circular-arc-shaped magnetic substance core and the permanent magnet, in this order, one among the substantially semicircular magnetic substance cores and the permanent magnet is rotatable, and the magnetic flux amount fluctuated by the rotation is detected by the magnetic induction element. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种旋转位置传感器，其在磁性表面上形成精确的形状并且结构紧凑且简单，并且提供用于内燃机的电子控制型节流装置。解决方案：该旋转位置传感器具有通过磁感应元件彼此相对布置的一对基本上为半圆形的磁性体磁芯; 以及一对大致圆弧状的磁性体磁芯，其沿着大致半圆形的磁性体磁芯的外周彼此相对布置，并且与至少一个大致圆弧状的磁性物质核心。在旋转位置传感器中，来自永久磁铁的磁通量被布置成流过大致圆弧形的磁性体磁芯，大致半圆形的磁性体磁芯，大致圆弧状的磁性体磁芯和永久磁铁按照这个顺序，大致半圆形的磁性体磁心和永久磁铁中的一个是可旋转的，并且通过磁感应元件检测由转动而波动的磁通量。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2004212305A Method for forming magnetic plate for non-contact type rotation position sensor 审中-公开
公开(公告)号：JP2004212305A
公开(公告)日：2004-07-29
申请号：JP2003001679
申请日：2003-01-08
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： YUKITA HISASHI , KUBOTA MASANORI , YOKOYAMA MIZUHO
IPC分类号： G01D5/12 , G01D5/14
摘要： PROBLEM TO BE SOLVED: To provide a forming method for magnetic plates for non-contact type rotation position sensors which are inexpensive and have high productivity.
SOLUTION: This is a method for forming protrusions of an upper magnetic plate and a lower magnetic plate to be used for a non-contact type rotation position sensor composed by sandwiching a permanent magnet with the magnetic plates having the protrusions from the above and the below, and arranging magnetism sensing elements on the protrusions of the magnetic plates. In the rear surfaces of the magnetic plates on opposite sides to the protrusions, clearance holes for controlling the flow of material of plastic fluidity are formed. An offer of the forming method for magnetic plates for non-contact type rotation position sensors which have a function as magnetic plates for non-contact type rotation position sensors, and are inexpensive and have high productivity is realized.
COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2004150905A Non-contact type rotational position sensor, and electronically controlled throttle valve system having non-contact type rotational position sensor 审中-公开
公开(公告)号：JP2004150905A
公开(公告)日：2004-05-27
申请号：JP2002315221
申请日：2002-10-30
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： MIYATA KENJI , KUBOTA MASANORI , ONO KENJI , SHIMURA TAKAHIRO , OTSUKA BUICHI , YUKITA HISASHI
IPC分类号： G01B7/30 , F02D9/10 , F02D11/10 , F02D35/00 , G01B7/00 , G01D5/14 , G01D11/24
CPC分类号： G01D5/145 , F02D9/105 , F02D9/1065 , F02D11/106 , F02D2400/08 , G01D11/245
摘要： PROBLEM TO BE SOLVED: To provide a noncontact type compact rotational position sensor for sensing precisely a rotational position of a rotation-moving body.
SOLUTION: A magnetic throttling part is provided in a midway of a magnetic path, and two magnetic induction elements are arranged adjacently in the throttling part. A magnetic flux is concentrated effectively in an attaching part for the magnetic induction elements to provide the highly sensitive and highly reliable noncontact type rotational position sensor, and signal lines from the magnetic induction elements are simplifiedly laid because the two magnetic induction elements are arranged adjacently.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2006038872A Throttle valve assembly having noncontact type rotation position sensor 审中-公开
标题翻译：带非接触式旋转位置传感器的节流阀组件
公开(公告)号：JP2006038872A
公开(公告)日：2006-02-09
申请号：JP2005236212
申请日：2005-08-17
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： MIYATA KENJI , SHIMADA SATOSHI , TAJIMA FUMIO , USUI TOSHIBUMI , KUBOTA MASANORI
IPC分类号： G01B7/30 , G01D5/14
摘要： PROBLEM TO BE SOLVED: To provide a means for sensing the rotation position of an object which moves rotationally in a noncontact manner.
SOLUTION: An axially magnetized ringlike permanent magnet is sandwiched from the upper and lower sides with each of two magnetic plates. Between the upper magnetic plate and the lower magnetic plate, two projected magnetic bodies in each of the upper and lower sides are mounted on each end part of the magnetic plate. A magnetic sensitive element is inserted at an air gap between two projected magnetic bodies in each of the upper and lower sides. By doing this procedure, a magnetic flux of the ringlike permanent magnet is concentrated almost at the projected magnetic body, the magnetic flux passes the magnetic sensitive element. The amount of magnetic flux is almost proportional to a rotation angle of the ringlike permanent magnet. From a signal output detected by the magnetic sensing element, the rotation position of the ringlike permanent magnet, accordingly, the rotation position of the rotary shaft supporting the ringlike permanent magnet can be sensed with the noncontact state. A high sensitive and accurate noncontact type rotation position sensor is obtained due to an effective concentration of the magnetic flux to a mounting part of the magnetic sensitive element.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于感测以非接触方式旋转移动的物体的旋转位置的装置。解决方案：轴向磁化的环形永磁体由上下两侧夹着两个磁性板。在上磁板和下磁板之间，在磁板的每个端部上安装有上下两侧的两个投影磁体。磁敏元件插入在上下两侧的两个投射磁体之间的气隙处。通过这样的过程，环状永磁体的磁通几乎集中在投射的磁体上，磁通量通过磁敏元件。磁通量几乎与环形永磁体的旋转角成正比。通过由感应元件检测到的信号输出，可以以非接触状态感测环形永磁体的旋转位置，从而支撑环形永磁体的旋转轴的旋转位置。由于有效地将磁通量集中到敏感元件的安装部分，所以获得了高灵敏度和精确的非接触式旋转位置传感器。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2000214028A SEMICONDUCTOR PRESSURE SENSOR 失效
公开(公告)号：JP2000214028A
公开(公告)日：2000-08-04
申请号：JP1741899
申请日：1999-01-26
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： SASADA YOSHIYUKI , MIKI MASAYUKI , KUBOTA MASANORI , MIYAZAKI ATSUSHI , KANAI KIYOSHI , SUZUKI KIYOMITSU
IPC分类号： G01L9/04 , G01L9/00 , H01L29/84
摘要： PROBLEM TO BE SOLVED: To securely simplify the assembling process and to improve the reliability sufficiently even if a constituent member containing lead is not used. SOLUTION: The semiconductor pressure sensor is used while bonded with a stem 12 after a pressure sensor element part composed of a 1st silicon substrate 1 and a 2nd silicon substrate 2 is bonded with an insulating substrate 4. The sensor is provided with a base layer 11 for connection made of a material having one surface bonded well with the insulating substrate 4, and the other surface bonded well with a bonding material 17 made of a solder material containing no lead. The bonding material 17 is heated and molten to bond the insulating substrate 4 with the stem 12.

6. 发明专利

JP2000131170A METHOD OF MOUNTING PRESSURE SENSOR 失效
公开(公告)号：JP2000131170A
公开(公告)日：2000-05-12
申请号：JP30666298
申请日：1998-10-28
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： MIKI MASAYUKI , SASADA YOSHIYUKI , KUBOTA MASANORI , MIYAZAKI ATSUSHI
IPC分类号： G01L9/04 , G01L9/00 , H01L29/84
摘要： PROBLEM TO BE SOLVED: To improve the pressure resistance characteristic of a sensor, without being restricted by the parent material strength of glass by directly bonding or adhering a Si member having a diaphragm to a fixing base. SOLUTION: A single-crystal Si member 1 having a diaphragm 1a is formed by the anisotropic or dry etching, etc., of Si and is eutectic-bonded to a fixing base 4 made of Si or metal, etc., which is heat treated at about 400 deg.C, e.g. using an Au-Si alloy solder-made bonding member 5. At this time, about the Si member 1 and the fixing base 4, an Au or Au-Si metal film is metallized on the bonding face of Si or the front face at the bonding face and similarly the bonding face of the base 4 or the front face at the bonding face through plating, deposition, sputtering, etc. As a result, the bond strength is improved, and the pressure resistance characteristic restricted by the parent material of the glass base can be enhanced to improve the reliability.

7. 发明专利

JPH1062444A ACCELERATION SENSOR, CONTROL UNIT AND PASSENGER PROTECTING SYSTEM OF VEHICLE 失效
公开(公告)号：JPH1062444A
公开(公告)日：1998-03-06
申请号：JP21767696
申请日：1996-08-20
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： HANZAWA KEIJI , NAKAZAWA TERUMI , KUBOTA MASANORI , ASANO YASUHIRO , SUGISAWA YUKIKO , HAYASHI MASAHIDE , SUZUKI KIYOMITSU
IPC分类号： G01P15/00 , B60R21/0136 , B60R21/16 , G01P15/125 , G01P15/18 , B60R21/32
摘要： PROBLEM TO BE SOLVED: To obtain a small-sized inexpensive acceleration sensor by detecting accelerations in directions crossing at right angles with each other by a sensor element detecting acceleration based on analogue signal characteristics and a sensor element detecting acceleration based on digital signal characteristics. SOLUTION: Acceleration detection elements 102, 202 are fixed to a lead frame 1002 so that the directions thereof are made mutually different by about 90 deg. and housed in the same package formed of a plastic resin 1001 to respectively detect crash signals in the before and behind direction and left and right direction of a car. The acceleration detection characteristics of the acceleration detection element 102 are set to analogue detection characteristics and the acceleration detection characteristics of the acceleration detection element 202 are set to digital detection characteristics. Since one signal is an analogue signal and other signal is a digital signal, the detection of a collision detection becomes possible. By housing the acceleration detection elements 102, 202 detecting collision in a before and behind direction and a left and right direction at the same time in the same package, a reliable smallsized and inexpensive sensor can be obtained.

8. 发明专利

JPH1010144A STRUCTURE FOR POSITIONING ACCELERATION SENSOR 失效
公开(公告)号：JPH1010144A
公开(公告)日：1998-01-16
申请号：JP16140896
申请日：1996-06-21
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： KUBOTA MASANORI , ASANO YASUHIRO , NAKAZAWA TERUMI
IPC分类号： G01P15/00 , G01L21/00 , G01P15/125
摘要： PROBLEM TO BE SOLVED: To position a chip with high accuracy by letting a capacitor chip used as an electric circuit serve also as a positioning reference when the chip detecting an acceleration is mounted to a hybrid IC substrate. SOLUTION: A semiconductor capacitive acceleration sensor 1 is constituted of an acceleration-detecting part 2, a custom IC 21 and a hybrid IC 22. The IC 21 comprises a capacity-detecting part, an amplifying part and a control part. The detecting part 2 and IC 21 are mounted to the IC 22. Capacitors Ca, Cb, Cc, Cd are also soldered to the IC 22. At this time, the capacitors Ca, Cb working as a driving circuit are utilized to position the detecting part 2. Positions of the capacitors Ca, Cb are determined by an electrode pattern of solder. In other words, a position of a side face of the detecting part 2 is determined by the capacitor Ca, while a position of a lower part of the detecting part is determined by the capacitor Cb.

9. 发明专利

JPH10111309A ACCELERATION SENSOR 失效
公开(公告)号：JPH10111309A
公开(公告)日：1998-04-28
申请号：JP26695196
申请日：1996-10-08
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： ASANO YASUHIRO , KUBOTA MASANORI , NAKAZAWA TERUMI
IPC分类号： G01P15/08 , H01L21/60 , H01L21/607 , H01L29/84
摘要： PROBLEM TO BE SOLVED: To improve reliability to the lowering of the fatigue strength of a wire-bonding by setting up the projecting height of a bonding terminal from a package face low to prevent a resonance phenomenon due to ultrasonic vibration. SOLUTION: A circuit board 5 is packaged in a package 1 where a bonding terminal 6 is glass-hermetic sealed 7, and in order to prevent contact with the outside, air-tightly sealed with a cap. An inert gas such as nitrogen gas is enclosed in the package 1 in order to prevent the defective contact and damage of an electronic circuit. The bonding terminal 6 almost dispenses with the projecting length to obtain a structure difficult to be resonant. In addition, the lower face of the head of the bonding terminal 6 is made to coincide with the face of glass-hermetic seal 7, and the bonding part therefore becomes apparently thicker to heighten the rigidity of the bonding terminal 6 for preventing a resonance phenomenon.

10. 发明专利

JPH1048239A ACCELERATION SENSOR 失效
公开(公告)号：JPH1048239A
公开(公告)日：1998-02-20
申请号：JP20957596
申请日：1996-08-08
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： HANZAWA KEIJI , ICHIKAWA NORIO , NAKAZAWA TERUMI , KUBOTA MASANORI , ASANO YASUHIRO , SUGISAWA YUKIKO
IPC分类号： G01P15/00 , G01P15/08 , G01P15/125
摘要： PROBLEM TO BE SOLVED: To obtain an acceleration sensor in which detection error is reduced for same size by providing acceleration sensor elements having different detection sensitivity to the surface and the rear in one package. SOLUTION: The acceleration sensor comprises acceleration detection elements 1a, 1b, IC 2a, 2b, a ceramic package 3, a conductor 4, and caps 5a, 5b. The acceleration detection elements 1a and the IC 2a and the acceleration detection elements 1b and the IC 2b serve, respectively, as independent sensors and have different acceleration detection sensitivity. One is used as a sensor for detecting crash while the other is used as a sensor for the purpose of fail- safe of a main sensor having narrow acceleration and frequency detection ranges. The acceleration detection elements 1a, 1b are mounted integrally on the surface and the rear in order to reduce the mounting surface. Since the ceramic package 3 has multilayer structure, it can be mounted easily on the opposite sides. Furthermore, the acceleration detection elements 1a, 1b are mounted to have coaxial detecting direction in order to eliminate the acceleration detection error between elements.

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