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41. 发明专利

JP2003189670A MOTOR DRIVE AND FREEZER UNIT USING SAME 审中-公开
公开(公告)号：JP2003189670A
公开(公告)日：2003-07-04
申请号：JP2001381414
申请日：2001-12-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUSHIRO HIDEO , MATSUI KEIZO , KAWACHI MITSUO
IPC分类号： F25B1/00 , H02P6/06 , H02P6/08 , H02P6/16 , H02P6/17
摘要： PROBLEM TO BE SOLVED: To provide a motor dive that has an inexpensive construction, accurately detects phase current, and can provide a high-quality drive from low-speed regions to high-speed regions. SOLUTION: The motor drive is provided with an inverter 2, a current detecting section 11 that detects the inverter busbar current, an induced voltage estimating section 17 that estimates the motor induced voltage from the inverter output voltage value and the current value from the current detecting section, a rotor position speed detecting section 18 that estimates the rotor position of the motor based on the estimated value of the induced voltage, a pulse width modulation (PWM) signal generating section 9 that generates PWM signals to control the inverter based on information on the estimated rotor position, and a duty ratio correcting section 19 that corrects the duty ratio of the PWM signal generated in the PWM signal generating section. The duty ratio correcting section 19 corrects the duty ratio of the PWM signal generated in the PWM generating section to suck level as giving no change to the PWM signal during the period that the current detecting section detects the inverter busbar current. COPYRIGHT: (C)2003,JPO

42. 发明专利

JP2001314085A POWER SUPPLY APPARATUS, INVERTER APPARATUS AND AIR CONDITIONER 失效
公开(公告)号：JP2001314085A
公开(公告)日：2001-11-09
申请号：JP2000129124
申请日：2000-04-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUSHIRO HIDEO , TSUCHIYAMA YOSHIRO
IPC分类号： H02M7/12 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a power supply apparatus which can suppress an excessive input current in an abnormal state of an AC power supply voltage or an AC-DC conversion circuit, and to provide an inverter apparatus and an air conditioner using the power supply apparatus. SOLUTION: A switching operation control means 11 improves a power factor and, when a switching operation of a switching device 4 is controlled so as to reach a DC voltage outputted to a load 7 to a predetermined target DC voltage, if a difference between a current inputted from an AC power supply 1 and a target current instantaneous value is out of a predetermined range, controls so as to discontinue the switching. After the discontinuation, the control means 11 controls the switching to be restored at a zero-crossing timing of an AC power supply voltage. With this constitution, an abnormal state of the AC power supply voltage or an AC-DC conversion circuit can be detected and coped with quickly and an excessive input current can be suppressed.

43. 发明专利

JPH11356088A DRIVER OF BRUSHLESS MOTOR 失效
公开(公告)号：JPH11356088A
公开(公告)日：1999-12-24
申请号：JP15898198
申请日：1998-06-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUSHIRO HIDEO , CHINOMI TAKEHITO
IPC分类号： H02P6/08 , H02P6/20
摘要： PROBLEM TO BE SOLVED: To provide the driver of a brushless motor which can perform the start easily and surely, and which does not generate an excessive current when started up. SOLUTION: The driver of a brushless motor starts (S12-S18) a motor by performing the positioning (S11) of a permanent magnet rotor by one-phase current application before starting the brushless motor, and then, controlling the drive of the switching element of an inverter, based on the output signal of a Hall element IC for detecting the position of the permanent magnet rotor. By this positioning before start, the output signal of the Hall element IC becomes stable, and the start-up of the brushless motor not affected by the electric noise or the vibration, etc., of the permanent magnet rotor becomes possible.

44. 发明专利

JPH1033707A METHOD FOR MEASURING TEMPERATURE DISTRIBUTION OF SUBJECT TO BE MEASURED, AND TEMPERATURE DISTRIBUTION MEASURING DEVICE 失效
公开(公告)号：JPH1033707A
公开(公告)日：1998-02-10
申请号：JP19589596
申请日：1996-07-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUSHIRO HIDEO , KAWABE YOSHIKAZU
IPC分类号： A62C3/04 , G01J5/10 , G08B17/12
摘要： PROBLEM TO BE SOLVED: To shorten the processing period of measuring temperature distribution inside a garbage pit and to improve accuracy of address positioning in the temperature distribution per every address. SOLUTION: This temperature measuring device has a temperature distribution operation processing part inside. The temperature distribution operation processing part is to make a garbage smoothing surface 1b, extract picture elements for picture data showing the range of each address 2 from the polar coordinates with an infrared rays detector 3 of the garbage smoothing surface 1b as the origin, and operate the temperature distribution of each address. With such an operation processing part, operations of coordinates more accurately showing the actual garbage piles can be done without repetition of operations as currently done. As a result, the processing period can be shortened, and accuracy of address positioning in the temperature distribution per every address can be improved.

45. 发明专利

JP2002165481A MOTOR DRIVER 失效
公开(公告)号：JP2002165481A
公开(公告)日：2002-06-07
申请号：JP2000357282
申请日：2000-11-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUI KEIZO , MATSUSHIRO HIDEO
IPC分类号： F24F11/02 , F24F11/46 , F24F11/49 , F24F11/61 , F24F11/64 , F24F11/86 , F24F11/88 , F24F11/89 , H02P6/06 , H02P6/08 , H02P6/16 , H02P6/182
摘要： PROBLEM TO BE SOLVED: To provide a small vibration, small nose, and high efficiency motor driver which drives a motor automatically at optimum setting with respect to changes in the operation conditions. SOLUTION: This motor driver has a model memory means which stores a model of an induced voltage corresponding to a rotor position of a motor, a rotor position estimating means which detects the terminal voltage of the motor and estimates the rotor position according to the detected voltage and the model value, a model correction means which corrects the model according to the value of the terminal voltage and the zero-cross point of the induced voltage, a current application width setting means which sets the current application angle for the motor, so as to secure a current application width for the detection of the zero-cross point by the model correction means, and a current application control means which controls a switching device. The rotor position is estimated and detected accurately to control the drive of the motor, while the optimum model is constructed consistently, while following the changes in the induced voltage constant, etc., caused by the changing in the motor operation conditions.

46. 发明专利

JP2001331202A AUTOMATIC CONTROLLER 失效
公开(公告)号：JP2001331202A
公开(公告)日：2001-11-30
申请号：JP2000149749
申请日：2000-05-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUI KEIZO , MATSUSHIRO HIDEO
IPC分类号： G06F5/00 , G05B13/02 , H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To provide an automatic controller capable of accelerating processing and quickly changing the control characteristics of this device by suppressing data amounts necessary for controlling the operation of an object to be controlled. SOLUTION: This automatic controller for controlling the operation of prescribed external equipment is provided with a control means for controlling the external equipment by using a parameter, a parameter storing means for successively storing the parameter to be used for the control of the external equipment by the control means, and a parameter developing means for developing compressed parameter information to the parameter. The parameter developed from the compressed parameter information by the parameter developing means is stored in the parameter storing means, and the control is performed according to the parameter stored in the parameter storing means by the control means.

47. 发明专利

JP2001028890A ARITHMETIC AND CONTROL UNIT, POWER CONVERTER, AND AIR CONDITIONER 失效
公开(公告)号：JP2001028890A
公开(公告)日：2001-01-30
申请号：JP19705599
申请日：1999-07-12
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： CHINOMI TAKEHITO , MATSUI KEIZO , MATSUSHIRO HIDEO , OKUI HIROSHI , NISHINOMIYA MASAFUMI
IPC分类号： H02P6/04 , F24F11/02 , F24F11/04 , F24F11/46 , F24F11/49 , F24F11/61 , F24F11/64 , F24F11/74 , F24F11/86 , F24F11/88 , F24F11/89 , H02P5/74 , H02P6/06 , H02P6/08 , H02P7/74
摘要： PROBLEM TO BE SOLVED: To control a plurality of means to be controlled, such as a compressor motor inverter, a blower motor inverter, a power-factor improvement circuit, and a switching power supply circuit, with a single arithmetic and control means. SOLUTION: This arithmetic and control unit consists of a plurality of means 2, 3, 4, 5 to be controlled, and an arithmetic and control means 6 for controlling the driving of the means to be controlled individually respectively. By setting pulse width modulation signals controlling a plurality of means 2, 3, 4, 5 to be controlled to the frequency of 1 to 1 or integer ratio, it is possible for the arithmetic and control means 6 to eliminate the shortage of processing time for the arithmetic and control means 6, and to control the driving of a plurality of elements to be controlled with high efficiency using the single arithmetic and control means 6, and with high precision while keeping coordination between the means to be controlled.

48. 发明专利

JPH11356051A POWER SUPPLY EQUIPMENT AND AIR CONDITIONER USING THE SAME 失效
公开(公告)号：JPH11356051A
公开(公告)日：1999-12-24
申请号：JP15897598
申请日：1998-06-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： CHINOMI TAKEHITO , MATSUSHIRO HIDEO , OGAWA MASANORI , OKUI HIROSHI
IPC分类号： H02M7/219 , H02M7/12
摘要： PROBLEM TO BE SOLVED: To provide a power supply equipment which has an improved power factor and is simple in structure and also provide an air conditioner using the power supply equipment. SOLUTION: This is a power supply equipment which is inputted with power from an AC power supply and then obtains desired DC power. This equipment is constituted of a power factor improving circuit which is forcibly inputted with current from the AC power supply by switching operation of switching elements S1 , S2 and tries to match an input voltage waveform and an input current waveform from the AC power supply, a reference waveform storing section 13 which stores information indicating a reference waveform, an input current detecting circuit 17 for detecting the input current, an output voltage detecting circuit 19 for detecting the output voltage, a zero cross detecting circuit 15 for detecting a point where the polarity of the input (supply) voltage changes, and a controlling section 11 for controlling the power factor improving circuit. The controlling section 11 controls the switching operation of the switching elements S1 , S2 at a duty ratio determined based on an input current value, an output voltage value, and a value of the reference waveform read out from the reference waveform storing setion 13 with the time of detecting the zero cross as a reference.

49. 发明专利

JPH11206174A DELIVER OF BRUSHLESS MOTOR 失效
公开(公告)号：JPH11206174A
公开(公告)日：1999-07-30
申请号：JP229798
申请日：1998-01-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUSHIRO HIDEO , CHINOMI TAKEHITO
IPC分类号： H02P6/18 , H02P6/06 , H02P6/08 , H02P6/182
摘要： PROBLEM TO BE SOLVED: To realize further reductions of noise and vibration of a brushless motor during its rotation, decreasing number and time of computational proceedings of its rotational speed, etc. SOLUTION: In a driver of a brushless motor, positional sensings of its magnetic poles which are performed in a magnetic pole-position sensor of is driver based on induced boltages 24, 25, 26 of its respective phase windings are performed during respective magnetic pole-position sensing terms 21, 22, 23 preset every phase at the space of 360 deg. in electrical angle, while making these 21, 22, 23 not larger than 60 deg. in electric angle. Therefore, a time interval Tint between the position sensing signals of the three phases which is determine inclusive of the three phases becomes 120 deg. in electric angle to be half in comparison with conventional ones. As a result, decreasing number and time of computational processings of the rotational speed, etc., of the brushless motor, the reductions of its noise and vibration during its rotation can be further realized.

50. 发明专利

JPH10160581A THERMAL IMAGE DETECTING DEVICE 失效
公开(公告)号：JPH10160581A
公开(公告)日：1998-06-19
申请号：JP31911696
申请日：1996-11-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MASUDA HITOSHI , MATSUSHIRO HIDEO , OTA SEIJI
IPC分类号： G01J1/42 , G01J1/44 , G01J5/48
摘要： PROBLEM TO BE SOLVED: To obtain an amplified output signal not saturated when the temperature near ordinary temperature and in a high-temperature range such as a fire are measured and measure the temperature in a wide range by providing a multiple signal amplifying means amplifying at a prescribed amplification factor on the signal amplification section of a pyroelectric thin film heat detecting element. SOLUTION: This thermal image detecting device is provided with an infrared sensor 3 capable of acquiring the two-dimensional image formed by two-stage signal amplification section 2 constituted of a pyroelectric thin film heat detecting element 1, a signal amplifying means 2a not saturated when the output of the pyroelectric thin film heat detecting element 1 is amplified during the measurement of a high temperature such as a fire, and a signal amplifying means 2b not saturated when the output signal of the signal amplifying means 2a is amplified while the pyroelectric thin film heat detecting element 1 measures the temperature near the ordinary temperature. A signal process section 5a corrects the output signal switched by a switch section 4 with the individual correction coefficient of the infrared-sensor 3 stored in an external memory section 6 and applies arithmetic processing to the detected temperature. The switch section 4 switches the outputs of the signal amplifying means 2a, 2b of the signal amplification section 2.

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