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1. 发明专利

JPH0368639B2 失效
公开(公告)号：JPH0368639B2
公开(公告)日：1991-10-29
申请号：JP770585
申请日：1985-01-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02P27/06 , H02P25/20

2. 发明专利

JPS61167386A OPERATING SYSTEM OF POWER SOURCE 失效
公开(公告)号：JPS61167386A
公开(公告)日：1986-07-29
申请号：JP789785
申请日：1985-01-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02P25/04 , G05D7/06 , H02P3/18 , H02P27/06
摘要： PURPOSE:To eliminate the burning of a bearing of a motor or a fan by detecting the lower limit value of a safely operating speed of the motor or fan and stopping the variable speed operation at the lower limit value or lower. CONSTITUTION:If a rotating speed is the prescribed value (NL) or higher, rotating speed detecting means 13 becomes inoperative, and an air flow rate is controlled by a variable frequency power source. When the speed tends to become the prescribed value (NL) or lower, the means 13 operates to close a contact 13a or to open a contact 13b. Accordingly, at this time a fixed control input 15 is applied to the variable frequency power source 3, the speed is fixed to the NL, a control signal of a controller 11 is applied to a damper drive device 10 to operate a damper 8 to become required air flow rate.

3. 发明专利

JPS6152175A Operating system of pole change motor 失效
标题翻译：变更电动机操作系统
公开(公告)号：JPS6152175A
公开(公告)日：1986-03-14
申请号：JP17455484
申请日：1984-08-20
申请人： Mitsubishi Electric Corp
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02P23/00 , H02P25/20
CPC分类号： H02P25/20
摘要： PURPOSE:To alleviate a mechanical shock at switching time by detecting the speed when the speed is switched from high to low speeds, and turning ON a power source of a low speed operation when the speed decreases to the vicinity of the speed at low speed operation time. CONSTITUTION:When high speed operation switching units 2, 3 are opened, a pole change motor 4 is naturally decelerated. The speed of decelerated state of the motor 4 is monitored by a rotation detector 8 via the remaining voltage of the motor 4, the fact that the speed arrives at the vicinity of the speed at low speed operation time of the motor 4 is detected, and the second switching unit 1 for low speed operation is closed. Thus, the difference between the speed of the motor 4 during natural deceleration and the low speed operation speed is almost 0, thereby alleviating the mechanical shock at switching time.
摘要翻译：目的：通过检测速度从高速切换到低速时的速度来减轻切换时间的机械冲击，并且当速度降低到低速运行时的速度附近时，打开低速运行的电源时间。构成：当高速运转切换装置2,3打开时，极点转换马达4自然减速。电动机4的减速状态由电动机4的剩余电压由转动检测器8进行监视，检测到电动机4的低速运转时速度到达速度附近的事实，用于低速操作的第二切换单元1关闭。因此，自然减速时的电动机4的速度与低速运转速度的差几乎为0，从而减轻了切换时的机械冲击。

4. 发明专利

JPS61167390A OPERATING SWITCHING SYSTEM FOR NUMBER OF POLE CHANGE MOTOR 失效
公开(公告)号：JPS61167390A
公开(公告)日：1986-07-29
申请号：JP770385
申请日：1985-01-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02P23/00 , H02H7/085 , H02P25/20
摘要： PURPOSE:To prevent an abnormal heat due to switching by stopping the switching during a time until the temperature of a pole change motor is sufficiently reduced when the motor is switched at between a high speed and a low speed. CONSTITUTION:If it is judged that a load detector operates that a load is in a high speed range, a switch 1 is opened, switches 2, 3 are closed to set a pole change motor 4 to a high speed operation state. If a load decreases so that a load detector is reset, the switches 2, 3 are opened, the switch 1 is closed to set to a low speed operation state. In order to switch the switches 1-3 after the timer time of a timer for sufficiently cooling the motor, the timer and an auxiliary relay are provided, and the relay is operated after the prescribed timer time to be switched.

5. 发明专利

JPS6152189A Operating system of pole change motor 失效
标题翻译：变更电动机操作系统
公开(公告)号：JPS6152189A
公开(公告)日：1986-03-14
申请号：JP17455384
申请日：1984-08-20
申请人： Mitsubishi Electric Corp
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02P23/00 , H02P25/20
CPC分类号： H02P25/20
摘要： PURPOSE:To alleviate a mechanical shock at switching time by varying a time from power source OFF during high speed operation to power source ON during low speed operation according to a load when the speed is switched from high to low speeds. CONSTITUTION:When high speed operation switching units 2, 3 are opened, a time limiter TB operates by a time limit specified by a load detector 8 for calculating a load amount on the basis of a current transformed by a current transformer 7 with the open of the units 2, 3 as a starting time, and the second switching unit 1 is closed for low speed operation. Accordingly, the time limit until the second unit 1 is closed is the time limit in response to the load of a pole change conversion motor 4, the speed of the motor 4 at energizing time becomes coincident to the speed at low speed operation time or near the speed, thereby alleviating the mechanical shock.
摘要翻译：目的：通过在低速运行期间根据负载从高速切换到低速时，在高速运行期间将电源关闭的时间从电源OFF切换到电源，从而减轻切换时间的机械冲击。构成：当高速运转切换装置2,3打开时，时间限制器TB按负载检测器8规定的时间运行，用于根据由电流互感器7变换的电流计算负载量，单元2,3作为起始时间，第二切换单元1关闭以进行低速操作。因此，直到第二单元1关闭的时间限制是响应于极点转换电动机4的负载的时间限制，电动机4在通电时间的速度与低速运行时间或接近的速度一致速度，从而减轻机械冲击。

6. 发明专利

JPS6152115A Operating system of power source 失效
公开(公告)号：JPS6152115A
公开(公告)日：1986-03-14
申请号：JP17454784
申请日：1984-08-20
申请人： Mitsubishi Electric Corp
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02J3/38

7. 发明专利

JPS6139893A Operation system of pole change motor 失效
标题翻译：变更电动机的运行系统
公开(公告)号：JPS6139893A
公开(公告)日：1986-02-26
申请号：JP15827384
申请日：1984-07-28
申请人： Mitsubishi Electric Corp
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02P23/00 , H02P25/20
CPC分类号： H02P25/20
摘要： PURPOSE:To sufficiently perform energy-saving effect without delaying switching by providing a detector for detecting outputs at low and high speed operation time, automatically changing the number of poles, thereby always satisfying the output required for a system. CONSTITUTION:When the opening signal of an input vane 8 of a controller 10 exceeds the vane opening theta1 set in the first detector at low speed operation time, the prescribed period signal 13 is delivered to switch the operation. If the first detector is set to the point theta1 near 100% of the vane opening at low speed operation time, it is automatically switched to high speed when the necessary system windage rises to the vicinity of the upper output limit at low speed operation time. On the other hand, if the second detector at high speed operation time is set to the vane opening theta2 corresponding to the point of windage smaller than that obtained at the set opening theta1 in the low speed range, it is automatically switched to low speed when the necessary system windage becomes a range capable of operating at low speed.
摘要翻译：目的：通过在低速和高速运行时间内提供检测输出的检测器，不会延迟切换，从而充分实现节能效果，自动改变极数，从而始终满足系统所需的输出。构成：当控制器10的输入叶片8的打开信号在低速运行时间超过设置在第一检测器中的叶片开度θ1时，传送规定的周期信号13以切换操作。如果在低速运转时间将第一检测器设定在靠近叶片开度100％的点θ1，则在低速运转时，必要的系统风阻上升到上限输出极限附近时，自动切换为高速。另一方面，如果将高速运转时间的第二检测器设定为对应于在低速范围内与设定开度θ1处获得的风速点对应的风向点的叶片开度θ2，则自动切换为低速，必要的系统风阻成为能够以低速运转的范围。

8. 发明专利

JPS6139827A Power source switching system 失效
标题翻译：电源切换系统
公开(公告)号：JPS6139827A
公开(公告)日：1986-02-26
申请号：JP15827484
申请日：1984-07-28
申请人： Mitsubishi Electric Corp
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02J3/38 , H02P1/26

9. 发明专利

JP2531529B2 失效
公开(公告)号：JP2531529B2
公开(公告)日：1996-09-04
申请号：JP31598687
申请日：1987-12-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02P23/00 , H02H7/08 , H02K17/14 , H02P21/04 , H02P23/03 , H02P23/07 , H02P25/10

10. 发明专利

JPS61167394A POWER SOURCE SWITCHING SYSTEM 失效
公开(公告)号：JPS61167394A
公开(公告)日：1986-07-29
申请号：JP770685
申请日：1985-01-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKADA SHINJI , HIROSAKI YOSHIHIKO
IPC分类号： H02P27/06 , H02H7/085 , H02P25/20
摘要： PURPOSE:To prevent a thermal damage of a motor by stopping switching by detecting by a temperature detector until the quantity of heat stored in the motor is returned to sufficiently normal state when a variable frequency power source is switched to a commercial power source. CONSTITUTION:A large torque might be generated by the rotating speed operated by a variable frequency power source 2 before switching to a commercial power source 1. Thus, a current flowed at switching time is increased, and heat is stored in a motor 6 at switching time. Thus, when the power source 2 is switched to the source 1, the switchings of switches 3, 4, 5 are locked if a temperature detector which operates when the temperature of the motor is the prescribed value or higher is operated, thereby preventing the motor from abnormally overheating.

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