专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS6117001A Device for magnetically detecting position 失效
标题翻译：用于磁性检测位置的装置
公开(公告)号：JPS6117001A
公开(公告)日：1986-01-25
申请号：JP9794985
申请日：1985-05-10
申请人： Hitachi Ltd
发明人： TAKAHASHI TADASHI , MIYASHITA KUNIO , KAWAMATA SHIYOUICHI
IPC分类号： G01D5/249 , G01B7/00 , G01D5/245
摘要： PURPOSE: To detect without interference magnetized tracks different in record length from one another, by providing magnetic signal elements bearing magnetic record units being continuous in required numbers in the direction of movement of a moving body and non-magnetic-field elements bearing no magnetic record units, and by making identical the magnetic poles of the magnetic signal elements holding the non-magnetic-field therebetween.
CONSTITUTION: A rotary drum 5 fitted to a rotary body 1 through the intermediary of a rotary shaft 2 has magnetized tracks M
0a WM
3a which are prepared by recording magnetic signals in different record length on a magnetic recording medium on the surface of the drum, and a magnetic sensor 4a having magnetoresistance elements R
01 W R
32 disposed thereon is provided opposite to the drum. Each track is provided with magnetic signal elements bearing magnetic poles of minimum magnetic record units which have polarities of N or S and are continuous in required numbers in the direction of movement of the drum indicated by an arrow, and with non-magnetic-field elements bearing no magnetic record units, and the magnetic poles of the magnetic signal elements holding the non-magnetic-field element therebetween are formed to have the same pole. According to this construction, magnetic signals can be detected with the same sensitivity and without any magnetic interference from each magnetized track even when it bears the signals different in record length from others.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过提供具有磁性记录单元的磁信号元件，在不影响记录长度不同的磁化轨迹的情况下检测移动体的运动方向和不带磁记录的非磁场元件所需的数量连续的磁记录单元并且通过使保持其之间的非磁场的磁信号元件的磁极相同。构成：通过旋转轴2安装在旋转体1上的旋转滚筒5具有通过将不同记录长度的磁信号记录在滚筒表面上的磁记录介质上而制备的磁化轨道M0a-M3a，以及具有设置在其上的磁阻元件R01- R32的磁传感器4a与鼓相对设置。每个轨道都设有磁信号元件，该磁信号元件带有极性为N或S的最小磁记录单元的磁极，并且在由箭头所示的滚筒的移动方向上以所需数量连续，并且具有非磁场元件不存在磁记录单元，并且将保持非磁场元件的磁信号元件的磁极形成为具有相同的极。根据这种结构，磁信号可以以相同的灵敏度被检测，并且即使当它承载与其他磁记录长度不同的信号时，也可以从每个磁化轨迹获得任何磁干扰。

2. 发明专利

JPS58155312A MAGNETIC ROTARY SENSOR 失效
公开(公告)号：JPS58155312A
公开(公告)日：1983-09-16
申请号：JP3729682
申请日：1982-03-11
申请人： HITACHI LTD
发明人： TAKAHASHI TADASHI , MIYASHITA KUNIO , KAWAMATA SHIYOUICHI , HAYASHIDA HIROSHI
IPC分类号： G01D5/245 , G01D5/14 , G01D5/16 , G01D5/249 , G01P3/487
摘要： PURPOSE:To improve mass productivity by making a substrate for a magnetic resistance effect element part small and forming the magnetic resistance effect element on the substrate in a unitary body, to improve the arranging accuracy of the magnetic resistance element, and also to eliminate the mutual magnetic interface between encoder parts and position detecting parts. CONSTITUTION:A magnetic body attaching part and the magnetic resistance effect element (MR element) part are divided into encoder parts and position detecting parts, respectively. The position detecting parts of the magnetic body attaching part D are subdivided in correspondence with the phase number of a brushless motor. The directions of the magnetic recording of detecting tracks 40-43 are made different. The MR elements 61-63 for the first - third phases are arranged so as to face the detecting tracks associated with the magnetic bodies approximately linearly. The directions of the magnetic signal recording of the encoder parts and the position detecting parts are made to intersect at a right angle. Namely arrangement is sequentially made in the circumferential direction and at the inside and outside of the radial direction. Thus the mutual interference between magnetic recording can be eliminated. The magnetic signal recording N and S in each detecting track at the position detecting part are arranged so that the direction in each track is reversed with respect to the direction in the other track. Therefore the magnetic interference between each of the detecting tracks can be decreased.

3. 发明专利

JPS5797397A DRIVING DEVICE FOR VARIABLE SPEED MOTOR 失效
公开(公告)号：JPS5797397A
公开(公告)日：1982-06-17
申请号：JP17093980
申请日：1980-12-05
申请人： HITACHI LTD
发明人： SAITOU SHIGEKI , KOIZUMI OSAMU , KAWAMATA SHIYOUICHI
IPC分类号： H02H7/085 , H02K11/00 , H02P5/60 , H02P7/80
摘要： PURPOSE:To suitably control a main motor and a fan driving motor in response to the environmental temperature of the main motor by providing a high temperature sensor and a low temperature sensor, respectively performing specified operations. CONSTITUTION:A high temperature sensor 18 for detecting the temperature of a load driving main motor 1 operated at a variable speed arriving at the first specified temperature and stopping the energization of the main motor controlling current is provided at a variable speed motor having the motor 1 and a fan driving motor 12 independently controlled. Further, a low temperature sensor 19 for detecting the temperature of the main motor 1 arriving at the second specified temperature to drive the motor 12 and detecting the temperature of the motor 1 becoming the third specified temperature lower than the second specified temperature to stop the motor 12 is provided.

4. 发明专利

JPS5718341A SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS5718341A
公开(公告)日：1982-01-30
申请号：JP9270480
申请日：1980-07-09
申请人： HITACHI LTD
发明人： SEI MAKIO , KAWAMATA SHIYOUICHI , KURIHARA YASUTOSHI , ENDOU TSUNEHIRO , TAJIMA FUMIO , MIYASHITA KUNIO
IPC分类号： H05K7/02 , H01L23/34 , H01L25/16
摘要： PURPOSE:To eliminate erroneous operation such as short-circuit, etc., and to enhance reliability of a semiconductor device by a method wherein signal terminals of power element group equipped on heat diffusing substrates are connected to be fixed to electrode plates provided on the substrates interposing insulators between them, and gate input terminals are provided on cathode electrode plates being insulated. CONSTITUTION:Tr chips 70 of the power switching elements of thyristors and GTO's etc., are fixed on the heat radiating substrates 62, and the substrates are supported on a holding plate 60 interposing an insulator 61a between them. While aluminum wires 65 connected to the chips are led to the electrode plates 66 provided on the substrates interposing the insulator 61b between them, and are connected moreover to the terminals 79a-79e. The base input terminals 79d-79e whereto switching signals of the Tr chips are to be supplied are connected to be fixed to the electrode plates 66' insulated from the electrode plates 66 through the insulators 61, and the signals are supplied to bases through the electroe plates 66'. Accordingly erroneous operation to be caused when switching is to be performed can be eliminated without obstructing heat dispersion.

5. 发明专利

JPS60122413A STEP FEED ACTUATOR DEVICE 失效
公开(公告)号：JPS60122413A
公开(公告)日：1985-06-29
申请号：JP22989383
申请日：1983-12-07
申请人： HITACHI LTD
发明人： MIYASHITA KUNIO , HAYASHIDA HIROSHI , TAKAHASHI TADASHI , KAWAMATA SHIYOUICHI
IPC分类号： G05D3/12 , G05B19/35 , H02K41/035 , H02P25/02
摘要： PURPOSE:To attain highly accurate step feeding by providing an actuator comprising a stator and a moving part and a sensor generating an output of each phase while being opposed to the moving part so as to miniaturize the actuator. CONSTITUTION:The stator 1A and the moving part 1B are provided to the actuator, the sensor 3A is provided to the moving part 1B and the sensor 3A output two-phase outputs A, B different from the phase by 90 deg.. The two-phase outputs A, B are fed to a signal processing circuit 6A and outputted while being converted into signals (a), (b) relating to the two-phase outputs A, B of the sensor A and inverted signals -a, -b based on the sensor output. The signals (a), (b) and the inverted signals -a, -b are fed to a current command circuit 5A and one of them is selected sequentially based on the command from a command generating circuit 7A. A signal (ic) selected by a current command circuit 5A is fed to a current control circuit 4A. Then an output current (i) of the circuit 4A controls the stator 1A of the actuator so as to attain highly accurate step control.

6. 发明专利

JPS57183265A PHASE CONTROL RECTIFYING CIRCUIT 失效
公开(公告)号：JPS57183265A
公开(公告)日：1982-11-11
申请号：JP6686681
申请日：1981-05-06
申请人： HITACHI LTD
发明人： KAWAMATA SHIYOUICHI , ENDOU TSUNEHIRO , MIYASHITA KUNIO , SEI MAKIO
IPC分类号： H02M1/08 , H02M1/084 , H02M7/12 , H02M7/162
摘要： PURPOSE:To control a preferable DC output voltage by providing a circuit for detecting the phase voltages of a 3-phase AC power source from AC power source terminals and obtaining a signal for controlling the phase of a rectifying circuit with the phase voltage. CONSTITUTION:The output terminal of an AC power source 1 is connected to 3-phase equilibrium loads 18a, 18b, 18c made of resistors, phase voltages are detected across the loads 18a, 18b, 18c, and signals for controlling the phases of rectifying circuits 2a, 2b, 3c, 3a, 3b, 3c are obtained from the phase voltages. Thus, a preferable DC output voltage can be obtained even if no reactor is inserted to the output line of the phase control rectifying circuit.

7. 发明专利

JPS5752386A Semiconductor device 失效
标题翻译：半导体器件
公开(公告)号：JPS5752386A
公开(公告)日：1982-03-27
申请号：JP12724280
申请日：1980-09-16
申请人： Hitachi Ltd
发明人： SEI MAKIO , KAWAMATA SHIYOUICHI , ENDOU TSUNEHIRO , TAJIMA FUMIO , MIYASHITA KUNIO
IPC分类号： H01L25/07 , H01L25/18 , H02M7/537 , H02M7/5387 , H02P27/06 , H05K1/18
CPC分类号： H02M7/537 , H01L2224/32225 , H01L2224/48091 , H01L2224/48227 , H01L2924/30107 , H01L2924/00014 , H01L2924/00
摘要： PURPOSE:To reduce stray inductance, by providing a plurality of heat-diffusing substrates on a panel, mounting parts for a rectifier and an inverter on them, and making them for common potential terminals via substrated diodes. CONSTITUTION:Heat-diffusing substrates 102 and 103 are provided via an insulator 101 on a panel 100. A rectifier 130 is composed of diode chips 114, 115, 120, and 121. An inverter 120 is composed of chip capacitors, chip resistors, diode chips, and transistor chips 48 and 94. Diode chips and transistor chips are formed in particular shapes, and the substrates 102 and 103 are made for common potential terminals via diodes. Therefore, connections between elements can be shortened by dividing into positive and negative potential sides. Stray inductance can be kept minimum.
摘要翻译：目的：为了减少杂散电感，通过在面板上提供多个热扩散基板，将整流器的安装部件和逆变器安装在它们上，并通过次二极管使它们成为公共的电位端子。构成：散热基板102和103通过面板100上的绝缘体101提供。整流器130由二极管芯片114,115,120和121组成。逆变器120由片状电容器，片式电阻器，二极管芯片和晶体管芯片48和94.二极管芯片和晶体管芯片形成为特定形状，并且基板102和103通过二极管制成用于公共电位端子。因此，可以通过分为正和负电位侧来缩短元件之间的连接。杂散电感可以保持最小。

8. 发明专利

JPS5720589A INVERTER FOR ELECTRICAL FAN 失效
公开(公告)号：JPS5720589A
公开(公告)日：1982-02-03
申请号：JP9506180
申请日：1980-07-14
申请人： HITACHI LTD
发明人： KAWAMATA SHIYOUICHI , SUGIURA YASUYUKI , MIYASHITA KUNIO , SAITOU SHIGEKI , KOIZUMI OSAMU
IPC分类号： F04D27/00
摘要： PURPOSE:To eliminate noise affecting, upon current inversion of a chopper for a vehicle travelling motor, an inverter for a blower disposed in the vehicle travelling motor, by incorporating an inversion amplifier element in the inverter. CONSTITUTION:When an inversion amplifier 37d which is provided in close proximity of the preceding stage to a main transistor 28d, receives a signal H, it is made conductive so as to turn off the main transistor 28d. While when it receives a signal L, the inversion amplifier 37d is turned off so as to make the transistor 28d conductive. Thereby, noise 33 generated by the chopper of the vehicle travelling motor affects the inversion amplifier 37d at VBE2 but scarcely at VCE3. However, it never affects the main transistor 28d at VCE2.

9. 发明专利

JPS5674098A CONTROL DEVICE FOR DC MOTOR 失效
公开(公告)号：JPS5674098A
公开(公告)日：1981-06-19
申请号：JP14779979
申请日：1979-11-16
申请人： HITACHI LTD
发明人： KAWAMATA SHIYOUICHI , SUGIURA YASUYUKI , MIYASHITA KUNIO , SAITOU SHIGEKI
IPC分类号： H02P1/54 , H02H7/085 , H02K9/04 , H02P5/60
摘要： PURPOSE:To prevent the burn-out of a motor by arranging temperature detectors at the brush holder and the magnetic field coil of the DC motor and starting or stopping the fan motor in response to the temperature rise of the motor. CONSTITUTION:Temperature detectors 21, 22 are arranged at the brush holder 11 and the field coil 10 of the DC motor with a fan motor 40 built-in, the motor 40 is started or stopped in response to the temperature rise of the motor 24, and the motor 24 and the fan motor 40 are stopped when the motor 24 is excessively heated abnormally. Since the motor 40 is started or stopped in accordance with the state of the environmental temperature in this manner, the battery 29 is energy-saved, and since the field winding is protected by the temperature detectors 22 and the breaker 26, the reliability of the driving system is improved.

10. 发明专利

JPS51142601A THE PROCESS AND DEVICE OF FLAT TYPE ARMATURE 失效
公开(公告)号：JPS51142601A
公开(公告)日：1976-12-08
申请号：JP6532075
申请日：1975-06-02
申请人： HITACHI LTD
发明人： MORINAGA SHIGEKI , KAWAMATA SHIYOUICHI , OONISHI KAZUO , YOKONO ATARU
IPC分类号： H02K23/54 , H02K15/04 , H02K23/36
摘要： PURPOSE:This thin winding body thickness armature ensures the low inertia, high revolution efficiency, long life armature of flat type motor.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式