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31. 发明专利

JPS61116978A Supersonic wave drive motor 失效
标题翻译：超声波驱动电机
公开(公告)号：JPS61116978A
公开(公告)日：1986-06-04
申请号：JP23407284
申请日：1984-11-08
申请人： Matsushita Electric Ind Co Ltd
发明人： INABA RITSUO , HARAO NORIYUKI , ISE YUKIHIKO
IPC分类号： H01L41/09 , H02N2/00
CPC分类号： H02N2/163
摘要： PURPOSE:To enhance the output, rotating speed and torque of a supersonic wave drive motor by providing a plurality of grooves perpendicularly to wavy surface at the specific distance on the drive surface of a supersonic vibrator. CONSTITUTION:A supersonic wave drive motor has a stator 1, a rotor 2, the stator 1 is supported to a stator support provided at a stator stationary base 3, and an exciter 8 bonded with a member of for forming a piezoelectric unit and the drive surface 6 is supported. The rotor 2 has a ring-shaped driven surface 9, and a rotational shaft 10 at the center. In this case, the drive source 6 of the stator 1 is formed in a ring shape, many grooves 11 are radially formed on the surface of the drive surface 6 of the stator 1. The depth of the groove 11 is smaller than the half of the thickness of the stator, at a pitch shorter than one wavelength. Thus, the lateral coupling force for deflecting vibration is reduced, thereby exciting in large amplitude with constant input.
摘要翻译：目的：通过在超音速振动器的驱动表面上以特定距离垂直于波浪表面提供多个槽来增强超声波驱动电机的输出，转速和转矩。构成：超声波驱动马达具有定子1，转子2，定子1被支撑在设置在定子固定基座3上的定子支撑件上，激励器8与用于形成压电单元的构件接合，表面6被支撑。转子2具有环形从动面9和位于中心的旋转轴10。在这种情况下，定子1的驱动源6形成为环状，在定子1的驱动面6的表面上径向地形成有多个槽11.槽11的深度小于定子的厚度以比一个波长短的间距。因此，用于偏转振动的横向耦合力减小，从而以恒定的输入在大振幅下激发。

32. 发明专利

JPS5578623A WAVEFORM SHAPING CIRCUIT 失效
公开(公告)号：JPS5578623A
公开(公告)日：1980-06-13
申请号：JP15243678
申请日：1978-12-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HARAO NORIYUKI
IPC分类号： G01D5/12 , H02P6/00 , H02P6/08 , H03K12/00
摘要： PURPOSE:To secure the control for the overlap width with no gap caused at the time point when the square wave pulses obtained from the sine wave type waveform by varying the current ratio between two constant current sources. CONSTITUTION:Input signal vb1 and vb2 are applied to the bases of transistors Tr4 and 9. Common constant current source 5 is connected to the emitter of Tr4 and 9 each, and constant current sources 3 and 8 are connected to the collectors of Tr4 and 9 each. At the same time, resistors 2 and 7 are connected to the collectors Tr1 and 6, and square wave output signals v01 and v02 are obtained across resistors 2 and 7. In such constitution, current ratio I1/I0 between sources 5 and 8 is varied to give the control to the overlap width between two output v01 and v02 at the cross time point between two input vb1 and vb2. To secure the control for the overlap width without causing any gap, ratio I1/I0 must be set to 1/2 or less.

33. 发明专利

JP2002181339A COOKER 失效
公开(公告)号：JP2002181339A
公开(公告)日：2002-06-26
申请号：JP2000379864
申请日：2000-12-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HARAO NORIYUKI
IPC分类号： A01M29/00 , A01M29/34 , F24C3/12 , F24C7/02 , F24C7/04 , F24C15/00
摘要： PROBLEM TO BE SOLVED: To prevent troubles from occurring where in an operating section of a cooker utilizing an electronic circuit a cockroach infiltrates and lives in a narrow space between an operation circuit board and an operation panel, and electric insulation performance of the electronic circuit is deteriorated due to the excrements and secretions of the cockroach to cause misoperation of the cooker. SOLUTION: The cooker of the present invention is adapted, such that upper and lower and left and right four side surfaces of a space put between an operation panel 2 and an operation circuit board section 3 are covered with shielding plates 8, 9, 10, and 11, so as to prevent cockroaches from infiltrating and living there. The shielding plates 8, 9, 10, and 11 may be adapted as a united body.

34. 发明专利

JPH06303665A BATTERY REVERSE CONNECTION PREVENTING DEVICE FOR WIRELESS REMOTE CONTROLLER 失效
公开(公告)号：JPH06303665A
公开(公告)日：1994-10-28
申请号：JP8831593
申请日：1993-04-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HARAO NORIYUKI , TAKECHI HIROSHI , ASADA TAKAO , UEDA YOSHIHIRO , HAMANO NOBUO , ISHIZUKA SHUJI
IPC分类号： F23N5/26 , F23Q21/00 , H02J7/00 , H04Q9/00
摘要： PURPOSE:To secure the safety by using a notice means to report the purport when a detection voltage is discriminated to be below a preset reference voltage so as to urge checking of reverse connection of the battery thereby preventing in advance battery burst due to charging. CONSTITUTION:In the case of battery replacement, suppose that a new battery 2 is used as presumption and when a battery power supply is switched from OFF to ON, a means 3 detecting a terminal voltage of the battery 2 detects a battery voltage and when the detected voltage is less than a preset voltage, a notice means 6 reports a fault to urge checking as to whether or not the battery 3 is reversely connected. Then a wireless remote controller 1 for a hot water supply equipment used for a location at a humid location such as a bath often adopts a totally enclosed structure to protect the circuit included in the remote controller and the battery 2 from moisture, and in this case, if the battery 2 is bursted due to charging at the time of battery reverse connection, there is a danger of transit to a larger accident and the transit to the accident as above is prevented in advance.

35. 发明专利

JPH0236777A DRIVER FOR ULTRASONIC MOTOR 失效
公开(公告)号：JPH0236777A
公开(公告)日：1990-02-06
申请号：JP18492888
申请日：1988-07-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KISHI SUSUMU , TAKAHASHI KENICHIRO , HARAO NORIYUKI , TAGAMI HIROZO
IPC分类号： H02N2/00
摘要： PURPOSE:To stably drive an ultrasonic motor from a starting time by starting it at a driving frequency higher by a predetermined frequency than a machine resonance frequency. CONSTITUTION:A driver for an ultrasonic motor has a motor body 1 including first-second piezoelectric elements 21-22, its driving circuit 2, a current detector 3 and a voltage detector 5 for the element 22, a phase difference detector 6, an error amplifier 7 and its reference voltage source 8, and further has a current level detector 10, a reference voltage source 11, a current level detector 14 by an error amplifier 12, and a variable oscillator 13. In this case, an initial value setter 15 is provided, and composed of a transistor 43, etc. Thus, an initial driving frequency fms becomes always higher driving frequency than a machine system resonance frequency fr, the driving frequency can be swept from a high frequency, and the motor can be stably driven even at the time of starting.

36. 发明专利

JPH0232772A ULTRASONIC WAVE MOTOR DRIVER 失效
公开(公告)号：JPH0232772A
公开(公告)日：1990-02-02
申请号：JP18233888
申请日：1988-07-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUKUNAGA TAKASHI , HARAO NORIYUKI
IPC分类号： H02N2/00
摘要： PURPOSE:To make the variation of a travel speed small by providing an apparatus with an amplitude detector for a machine arm current and with a temperature sensitive resistance element for sensing an ambient temperature and by controlling a current amplitude to a constant value through varying a driving frequency. CONSTITUTION:In an ultrasonic motor driver circuit, a piezoelectric body 10 and a fixed resistance element 6 are connected in series with an electrode part 8, and a fixed resistance element 7 and the capacitor 12 of a capacity equal to the capacity C0 at the time of the maximum temperature in a motor-using environment of the electric arm impedance of said piezoelectric body 10 are connected in series with each other and in parallel with said series connector. Then, each potential difference of said fixed resistance elements 5, 6 is obtained by a differential amplifier 15, converted into a machine arm current amplitude (g) via an amplitude detector 14, and sent to its controller 13. When said amplitude signal (g) is lower than its set value (h), a driving frequency (a) is lowered and a frequency control signal (i) is outputted. Further, a motor part is provided with a temperature-sensitive resistance element 5 to sense its ambient temperature and to set said temperature via a temperature compensation circuit 16 so that said temperature becomes higher if said set value (h) is increasingly lower.

37. 发明专利

JPH01238474A DRIVING DEVICE FOR ULTRASONIC MOTOR 失效
公开(公告)号：JPH01238474A
公开(公告)日：1989-09-22
申请号：JP6399488
申请日：1988-03-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAGAMI HIROZO , TAKAHASHI KENICHIRO , HARAO NORIYUKI , KISHI SUSUMU
IPC分类号： H02N2/00 , H01L41/04
摘要： PURPOSE:To stably drive by connecting a driving frequency regulator and a temperature characteristic correcting circuit to an amplifier to finely regulate an oscillation frequency. CONSTITUTION:A driving device for an ultrasonic motor 12 is composed of an oscillator 51, a temperature characteristic compensating circuit 52, an operational amplifier 44, and a driving circuit 22, and regulates a driving frequency to drive piezoelectric units 1, 2. A regulator 58 is provided in the device to regulate the oscillation frequency of the oscillator 51 in response to the irregularity of the motor 12. The regulator 58 is composed of a variable resistor 53, a resistor 54 and an operational amplifier 56 connected between power supply terminals 31 and 32. Thus, even if the oscillation frequency is regulated in response to the irregularity of resonance characteristic of the motor 12, the temperature change rate of the oscillation frequency of the oscillator 51 can be always equalized to the temperature changer rate of the resonance frequency of a stator, thereby obtaining a stably driving state.

38. 发明专利

JPH01234071A ULTRASONIC MOTOR PROVIDED WITH MAGNETIC ENCODER 失效
公开(公告)号：JPH01234071A
公开(公告)日：1989-09-19
申请号：JP6099788
申请日：1988-03-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAGAMI HIROZO , HARAO NORIYUKI , TAKAHASHI KENICHIRO
IPC分类号： H02N2/00 , G05B19/23 , H01L41/09 , H02N2/12 , H02N2/14 , H02N2/16
摘要： PURPOSE:To improve accuracy of position and speed control, by arranging first and second tracks magnetized continuously with alternating polarity on the outer circumference of a rotary body and arranging a magnetic encoder while facing with the tracks. CONSTITUTION:A ultrasonic motor comprises a stator 7 and a rotor 3, where the rotor 3 comprises a rotary body 1 arranged on the outer circumferential section of the central shaft 1a and a ring type running member 2 for converting the vibration of the stator 7 into rotary force. A magnetism sensitive element 14 is arranged on a fixing table 9 through a proper gap with respect to the outer circumferential section of the rotor 3. A resin mold magnet 13 arranged on the outer circumferential section of the wall face of the rotor 3 comprises first and second tracks 13b, 13c magnetized continuously with alternating polarity and a non-magnetized groove section 13 between the tracks. The magnetism sensitive element 14 detects variation of flux of the first and second tracks 13b, 13c caused through rotation of the rotor 3 and provides signals to a position control circuit section and a speed control circuit section.

39. 发明专利

JPH01107672A DRIVING GEAR FOR ULTRASONIC WAVE MOTOR 失效
公开(公告)号：JPH01107672A
公开(公告)日：1989-04-25
申请号：JP26211687
申请日：1987-10-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI KENICHIRO , INABA RITSUO , SUGANO NOBUKAZU , HARAO NORIYUKI , MATSUYAMA YUKIHIRO , TAGAMI HIROZO , KISHI TORU
IPC分类号： H02N2/00 , H01L41/04
摘要： PURPOSE:To exactly control rotational frequency, by controlling a driving circuit via a variable oscillator, with signal detecting the current level of a piezoelectric unit, and each signal due to the phase difference of the current and applied voltage. CONSTITUTION:The driving gear of an ultrasonic wave motor is composed of a current detecting circuit 35, a voltage detecting circuit 36, a phase detecting circuit 37, an error amplifier 43, a variable oscillator 44, and the like. Then, to the input side of a current level detecting circuit 51, the output of the current detecting circuit 35 is connected, and the output is connected to the one side input side of an operational amplifier 54 via a resistor 52, and to the other side input side of the amplifier 54, a reference voltage source 55 is connected, and an error amplifier 56 is composed. Then, the amplitude integrating value of current in proportion to mechanical system oscillation, flowing to a piezoelectric unit 2 is compared with the reference voltage source 55, and by comparing the phase difference of output generated from a phase difference detector 50 with a reference voltage source 41, rotational frequency can be exactly controlled with the phase difference.

40. 发明专利

JPS63171175A DRIVER FOR ULTRASONIC MOTOR 失效
公开(公告)号：JPS63171175A
公开(公告)日：1988-07-14
申请号：JP236587
申请日：1987-01-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI KENICHIRO , HARAO NORIYUKI , TAGAMI HIROZO
IPC分类号： H02N2/00 , H01L41/04 , H02N2/14 , H03L1/02
摘要： PURPOSE:To prevent lowering of driving efficiency by making a temperature change rate of oscillation frequency of an out put signal oscillated by an oscillator equal to that of resonance frequency of a piezoelectric body. CONSTITUTION:A driver for an ultrasonic motor 23 is equipped with a drive circuit 22, an oscillator 51 and a temperature characteristic corrective circuit 52, and drives piezoelectric bodies 1, 2 of the motor 23 by the drive circuit 22 according to an oscillation frequency of the oscillator 51. Said temperature characteristic corrective circuit 52 is composed of a temperature change detection circuit 35, a constant voltage source 38, an operational amplifier circuit 44 and a resistance 42, and the oscillation frequency f of said oscillator 51 changes a charge and discharge current to a capacitor 48 according to a temperature change so that said current is set to a given value. In this manner, if the temperature change rate and circuit gain of resistances 33, 34 are set appropriately, the temperature change rate of oscil lation frequency f of the oscillator 51 can be made equal to a temperature characteristic change rate of resonance frequency of the piezoelectric bodies 1, 2 and an always stable starting state can be obtained.

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