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121. 发明专利

JPS63171192A CONTROLLER FOR ELEVATOR 失效
公开(公告)号：JPS63171192A
公开(公告)日：1988-07-14
申请号：JP166787
申请日：1987-01-09
申请人： HITACHI LTD
发明人： INABA HIROMI , ANDO TAKEYOSHI , KUROSAWA TOSHIAKI , MITSUNE SHUNSUKE , HIROSE MASAYUKI
IPC分类号： B66B1/28 , B66B1/30 , H02P27/06
摘要： PURPOSE:To enhance a power factor and obtain a comfortable elevator system to ride in, by applying a converter system controlling phase and pulse width, for controlling the elevator. CONSTITUTION:Via a current type converter section 3 and a current type inverter section 5 through an AC power source 1, an induction motor 6 driving an elevator riding-cage and a balance weight is driven. From one-chip micro- computers 10, 11, pulse patterns (control signals) are respectively fed to transistors 31-36, 51-56. On the micro-computers 10, 11, a phase control system and a pulse width control system set in a variable state at the same time are worked to compensate for gain lowering due to the cos characteristic of the phase control system. As a result, an elevator system driven by a controller having the pulse width control system and the phase control system is to have almost constant responding capacity regardless of the change of the control systems, and so the elevator is released from unnecessary oscillation phenomena due to the change of the systems.

122. 发明专利

JPS62233071A PULSE CONTROLLER FOR INVERTER 失效
公开(公告)号：JPS62233071A
公开(公告)日：1987-10-13
申请号：JP7451986
申请日：1986-04-01
申请人： HITACHI LTD
发明人： NAKAZATO MASAAKI , MITSUI NOBUO , HIROSE MASAYUKI , INABA HIROMI
IPC分类号： H02M7/48
摘要： PURPOSE:To prevent noise and torque ripples by causing respective inverter constituent elements to generate ignition-extinction pulses in a manner of distrib uting a given time in proportion to peak values of three-phase sine waves. CONSTITUTION:A current-type inverter converts a DC power 1 into AC through a DC reactor 4 and feeds a load induction moror 7. A controller of this inverter is furnished with one-chip microcomputer 10 performing a pulse pattern control and is further composed of input/output 101, 106, ROM 103, RAM 104, ALU 105, pulse pattern(event)-setting register 107, holding register 109, associative memory 110, comparator 112, excution controller 113 and others. Accordingly, numerical values, on which peak values of three sine waves with 120 deg. phase difference are to be retrieved, are obtained at every given time and an element, of which ignition is to be extinguished, is determined within said time. Also, a pulse width data-computing part operates to obtain data for dividing a given inproportion to peak values of three since waves according to a phase information.

123. 发明专利

JPS6296280A CONSOLE PANEL FOR ELEVATOR 失效
公开(公告)号：JPS6296280A
公开(公告)日：1987-05-02
申请号：JP23326385
申请日：1985-10-21
申请人： HITACHI LTD
发明人： HIROSE MASAYUKI , KOMATSU TSUTOMU , AOKI GOICHI
IPC分类号： B66B1/50 , B66B1/46 , B66B3/00 , B66B13/14

124. 发明专利

JPS6238027A BASE DRIVING CIRCUIT FOR TRANSISTOR 失效
公开(公告)号：JPS6238027A
公开(公告)日：1987-02-19
申请号：JP17588785
申请日：1985-08-12
申请人： HITACHI LTD
发明人： HIROSE MASAYUKI , NAKAZATO MASAAKI , AOKI GOICHI , MOTOBE MITSUSACHI , ANDO TAKEYOSHI
IPC分类号： H03K17/60
摘要： PURPOSE:To reduce power consumption by connecting anodes of a reverse blocking diode and a stabilizing diode mutually so as to reduce a collector- emitter saturated voltage of a main transistor (TR) while keeping a high current gain. CONSTITUTION:The constitution is adopted that the anode of the stabilizing diode D2 is connected to the anode of the reverse blocking diode D1. Through the system as above, a high current gain is realized and the collector-emitter saturated voltage of the main TR Q1 is reduced by the forward voltage drop of the diode D1. Thus, the power consumption of the main TR Q1 is reduced the similar ratio.

125. 发明专利

JPS6227292A DETECTOR FOR PASSENGER OF CONVEYOR 失效
公开(公告)号：JPS6227292A
公开(公告)日：1987-02-05
申请号：JP16192885
申请日：1985-07-24
申请人： HITACHI LTD
发明人： KOMATSU TSUTOMU , AOKI GOICHI , HIROSE MASAYUKI
IPC分类号： B66B25/00

126. 发明专利

JPS60213272A Protecting device of inverter applied with gate turn off thyristor 失效
标题翻译：逆变器的保护装置用盖子关闭THYRISTOR
公开(公告)号：JPS60213272A
公开(公告)日：1985-10-25
申请号：JP6903084
申请日：1984-04-09
申请人： Hitachi Ltd
发明人： HIROSE MASAYUKI
IPC分类号： H02M7/48 , H02M7/515
CPC分类号： H02M7/515
摘要： PURPOSE:To suppress the peak value of dv/dt at the turning OFF time of a gate turn OFF thyristor by connecting diodes in parallel with a forward voltage rising rate (dv/dt) suppressing reactor, and circulating energy stored in the reactor. CONSTITUTION:An inverter which uses a gate turn OFF thyristor (GTO) has reactors Lu, Lx inserted in series with the GTO, and circulating diodes Du, Dx. A surge absorber for suppressing the dv/dt at the turning OFF time is formed of capacitors (c) and diodes (d). In this case, diodes D10 is connected in parallel with the positive pole side reactor Lu of a U arm, and a diode D20 is connected in parallel with a negative pole side reactor Lx of an X arm. Thus, the energy stored in the reactors Lu, Lx is circulated via the diodes D10, D20 to suppress the peak value of the forward voltage at the turning OFF time of the GTO.
摘要翻译：目的：通过将二极管与正向电压上升速率（dv / dt）抑制电抗器并联连接并存储在反应器中的循环能量来抑制门极关断晶闸管的转向截止时间的dv / dt的峰值。构成：使用栅极截止晶闸管（GTO）的逆变器具有与GTO串联插入的反应器Lu，Lx以及循环二极管Du，Dx。用于抑制转向OFF时间的dv / dt的浪涌吸收器由电容器（c）和二极管（d）形成。在这种情况下，二极管D10与U臂的正极侧反应器Lu并联连接，二极管D20与X臂的负极侧反应器Lx并联连接。因此，存储在电抗器Lu，Lx中的能量经由二极管D10，D20循环，以抑制GTO的转向OFF时的正向电压的峰值。

127. 发明专利

JPS5864826A GATE CONTROLLING CIRCUIT FOR GATE TURN-OFF THYRISTOR 失效
公开(公告)号：JPS5864826A
公开(公告)日：1983-04-18
申请号：JP16353281
申请日：1981-10-15
申请人： HITACHI LTD
发明人： SATOU MASAYOSHI , FUKUI HIROSHI , KIMURA ARATA , HIROSE MASAYUKI
IPC分类号： H02M1/06 , H03K17/04 , H03K17/723 , H03K17/73 , H03K17/732
摘要： PURPOSE:To quicken turning-on, by decreasing the number of windings flowing an on-gate current of a pulse transformer turning on/off a gate turn-off thyristor than that for an off-gate current. CONSTITUTION:A gate of gate turn-off thyristor GT01 is connected to a resistor 15 via a diode 14 flowing a turn-on current with a voltage from a secondary winding 132 of a pulse transformer 13. A transistor (TR)4 flowing an on-gate current is connected to the 1st primary winding 1311 of the transformer 13 and a TR5 flowing an off-gate current is connected to the 2nd primary winding 1312. If the winding ratio of the windings 1312, 132 is taken as 5:1 and that of the windings 1311, 1312 as 1:2, then the generation of avalanche current at turning-off of the GT01 can be prevented, an output voltage of the winding 1312 at turning- on is increased and the leading of the on-gate current is made steep. Thus, the turning-on of the GTO can be quickened and the minimum on-time of the GTO can be decreased.

128. 发明专利

JPS57162962A GATE CONTROL CIRCUIT FOR GATE TURN-OFF THYRISTOR 失效
公开(公告)号：JPS57162962A
公开(公告)日：1982-10-06
申请号：JP4650881
申请日：1981-03-31
申请人： HITACHI LTD
发明人： SATOU MASAYOSHI , FUKUI HIROSHI , HIROSE MASAYUKI
IPC分类号： H02M1/06 , H02M1/08 , H03K17/732
摘要： PURPOSE:To prevent the erroneous firing of a gate turn-OFF thyristor (GTO) by closing a switch of a reverse bias circuit having a DC power source and a series circuit of switches during the OFF period of the GTO. CONSTITUTION:Circuits 8, 9, 11 for supplying OFF gate currents to turn a gate turn-OFF thyristor (GTO) and reverse bias circuits 2, 3 for preventing the erroneous operation by reversely biasing the gate at the OFF time of the GTO are provided. When the switch 3 is closed during the OFF period of the GTO, the voltage of a DC power source 2 is applied directly to the GTO. The tail current of the GTO at the turning-OFF time of the GTO and the displacing current at the abruptly changing time of an anode volage flow through the power source 2, but since the impedance of passage is small, the variation in the gate voltage of the GTO is small. Accordingly, the GTO is not erroneously fired due to the application of the positive voltage.

129. 发明专利

JP2000053338A ELEVATOR CONTROL DEVICE 失效
公开(公告)号：JP2000053338A
公开(公告)日：2000-02-22
申请号：JP22580998
申请日：1998-08-10
申请人： HITACHI LTD , HITACHI BUILDING SYS CO LTD
发明人： KONYA MASAHIRO , ANDO TAKEYOSHI , MUTO NOBUYOSHI , HOKARI SADAO , ONUMA NAOTO , HIROSE MASAYUKI
IPC分类号： B66B1/30 , H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To enable deceleration from a full-load state of an electric motor at the time of a power failure while an elevator is traveled, reduce decrease of large capacity capacitor voltage in a boosting operation, perform a continuous operation according to large capacity capacitor voltage and land the elevator. SOLUTION: A bi-directional voltage boosting/dropping circuit 20 is constituted between a smoothing capacitor 3 and a large capacity capacitor 21. This device is provided with a voltage boosting/dropping circuit control means 30 performing controls by voltage boosting/dropping circuit information on a power failure detecting device 31, a large capacity capacitor voltage detecting device 22, a smoothing capacitor voltage detecting device 32 and an inductor current detecting device 28 and elevator operation information on an inverter control means 10. When the voltage boosting/ dropping circuit control means 30 detects a power failure during a traveling, a deceleration command is generated and voltage of the large capacity capacitor 21 is boosted and controlled up to voltage of the smoothing capacitor 3 according to torque and speed at the time of deceleration. The voltage boosting/dropping circuit control means 30 determines dropping voltage of the large capacity capacitor 21 from a remaining distance up to a target floor and requests the inverter control means 10 to maintain present speed if remaining voltage of the large capacity capacitor 21 is voltage by which the target floor can be attained.

130. 发明专利

JPH11343087A ELEVATOR DOOR CONTROL DEVICE 失效
公开(公告)号：JPH11343087A
公开(公告)日：1999-12-14
申请号：JP15146198
申请日：1998-06-01
申请人： HITACHI LTD
发明人： HIROSE MASAYUKI , ONO YOICHI
IPC分类号： B66B13/14 , B66B13/26
摘要： PROBLEM TO BE SOLVED: To automatically set the door opening and closing speed in response to the number of operation times of switches, etc., which are operated when an object or a person is caught or drawn in a car door, and thereby reduce the number of occurrence times of the above affairs. SOLUTION: In a car door control device which drives a door 26 to open and close it at the door opening and closing speed which is formed based on a car door opening and closing signal and a door position detecting signal, the door opening and closing speed is adapted to be variable in response to the number of operation times in a specified period, of at least either of a door opening and closing switch 28 for operating the door 26 in the direction of 'open', a door reversing switch 29 for operating the door in the direction of 'close' by a specified operation during the period the door 26 is operated in the closed direction, and an overload time-door reversing means 6 for reversing the opening and closing operation of the door when a load over a specified value is applied to the door during the operation of opening and closing the door 26.

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