VIBRATION-GENERATING DEVICE AND PORTABLE TELEPHONE COMPRISING THE SAME
    82.
    发明申请
    VIBRATION-GENERATING DEVICE AND PORTABLE TELEPHONE COMPRISING THE SAME 审中-公开
    振动发生装置和包含该装置的便携式电话

    公开(公告)号:WO01072435A1

    公开(公告)日:2001-10-04

    申请号:PCT/JP2001/001711

    申请日:2001-03-06

    Abstract: A vibration-generating device that operates always following up the mechanical resonance point is disclosed. A vibration-generating device (1) is constituted by a vibration-generating unit (2) that comprises a magnet (11) and an electromagnetic coil (13) both fixed floatingly by a spring member (12), and the electromagnetic coil (13) is driven by a square-wave to generate vibrating power. The vibration-generating device (1) has a drive control unit (10) that monitors the driving voltage of the electromagnetic coil (13) at regular time intervals, increases the driving frequency of the electromagnetic coil (13) when the induced voltage waveform of the driving voltage increases with time and decreases the driving frequency of the electromagnetic coil (13) when the induced voltage waveform decreases with time. As a result, since the driving frequency of the electromagnetic coil (13) can be changed to the resonance frequency of the vibration-generating unit (2), the driving of the electromagnetic coil can always follow up the mechanical resonance point, and a large vibrating power can be obtained.

    Abstract translation: 公开了一种总是跟随机械共振点运行的振动产生装置。 振动产生装置(1)由包括由弹簧构件(12)浮动固定的磁体(11)和电磁线圈(13)的振动产生单元(2)构成,电磁线圈(13) )由方波驱动以产生振动功率。 振动产生装置(1)具有以规律的时间间隔监视电磁线圈(13)的驱动电压的驱动控制单元(10),当电磁线圈(13)的感应电压波形 当感应电压波形随时间减小时,驱动电压随时间增加并降低电磁线圈(13)的驱动频率。 结果,由于电磁线圈(13)的驱动频率可以改变为振动产生单元(2)的谐振频率,所以电磁线圈的驱动可以随时跟随机械共振点,并且大的 可获得振动功率。

    DEVICE FOR DRIVING VIBRATION SOURCE
    83.
    发明申请
    DEVICE FOR DRIVING VIBRATION SOURCE 审中-公开
    用于驱动振动源的装置

    公开(公告)号:WO01028699A1

    公开(公告)日:2001-04-26

    申请号:PCT/JP2000/007378

    申请日:2000-10-23

    Abstract: A drive for driving a vibration source comprises a sound source (10) for generating tone signals, a DC motor (24) as a vibration source, a low-pass filter (LPF) (16) for extracting low-frequency components from tone signals output from the sound source (10), a detector circuit (18) for detecting the output signal from the low-pass filter (16), a rectifier circuit (20) for rectifying the output from the detector circuit (18), and an amplifier (22) for driving the vibration source based on the low-frequency components extracted by the low-pass filter (16).

    Abstract translation: 用于驱动振动源的驱动器包括用于产生音调信号的声源(10),作为振动源的DC马达(24),用于从音调信号中提取低频分量的低通滤波器(LPF)(16) 从声源(10)输出的检测电路(18),用于检测来自低通滤波器(16)的输出信号的检测器电路(18),用于对检测器电路(18)的输出进行整流的整流电路(20) 放大器(22),用于基于由低通滤波器(16)提取的低频分量来驱动振动源。

    SOUNDER
    84.
    发明申请
    SOUNDER 审中-公开

    公开(公告)号:WO1995005654A1

    公开(公告)日:1995-02-23

    申请号:PCT/GB1994001792

    申请日:1994-08-16

    CPC classification number: B06B1/0223 B06B2201/53

    Abstract: A sounder has a drive coil (40) which receives a varying drive signal from a drive circuit. The magnetic field resulting therefrom drives an armature (12) which is mounted on a diaphragm (10) which produces sound due to the vibration thereof. A second coil (42) is magnetically and electrically connected to the drive coil (40). A diode (D1) is connected in series with the second coil and is arranged such that no current flows in the second coil (42) when the drive signal (which is unipolar) generates a current in the drive coil (40). When the drive signal is cut off, a current flows in the second coil (42) and charge is stored in a capacitor C1. The energy thus stored may be used to power the drive circuit. In this way, the power used by the sounder corresponds to the losses in the circuit and due to the acoustic power radiated by the sounder. Since this is only a small proportion of the power needed to drive the drive coil (40), the sounder is efficient.

    Abstract translation: 发声器具有从驱动电路接收变化的驱动信号的驱动线圈(40)。 由此产生的磁场驱动安装在由振动产生的声音的隔膜(10)上的电枢(12)。 第二线圈(42)磁性地和电连接到驱动线圈(40)。 二极管(D1)与第二线圈串联连接,并且被布置成当驱动信号(其是单极性)在驱动线圈(40)中产生电流时,在第二线圈(42)中没有电流流动。 当驱动信号被切断时,电流在第二线圈(42)中流动,并且电荷被存储在电容器C1中。 由此存储的能量可用于为驱动电路供电。 以这种方式,发声器使用的功率对应于电路中的损耗,并且由于发声器辐射的声功率。 由于这仅是驱动驱动线圈(40)所需的功率的一小部分,所以发声器是有效的。

    WIDE-FREQUENCY-BAND LARGE DISPLACEMENT ANGLE SHAKER

    公开(公告)号:EP3190390A4

    公开(公告)日:2018-07-25

    申请号:EP15838009

    申请日:2015-07-03

    Applicant: UNIV ZHEJIANG

    CPC classification number: H02K33/00 B06B1/045 B06B2201/53 G01D18/00 H02K1/34

    Abstract: Provided is a broadband and large displacement angular vibrator, comprising an outer housing, a vibration table (B-1), a main spindle (B-2), a moving coil assembly, a magnetic circuit assembly, a holding brake assembly, a motor and closed loop control assembly thereof, an electic viscoelastic feedback control assembly, an air bearing, and an angular displacement sensor; the moving coil comprises a moving coil substrate (B-3) and a coil(B-4); the moving coil substrate (B-3) is fixed to the main spindle (B-2); the magnetic circuit assembly comprises a magnetic ring (E-1), a central magnetic pole e(E-2), and magnets (E-3); the magnetic ring (E-1), central magnetic pole (E-2), magnets (E-3), and air gap form a closed magnetic circuit; the central magnetic pole (E-2) is located inside the magnetic ring (E-1), the magnets (E-3) is located between the magnetic ring (E-1), the magnets (E-3) is located between the magnetic ring (E-1) and the central magnetic pole (E-2), and the magnets (E-3) is attached to the central magnetic pole (E-2); the outer housing has the holding brake assembly; the holding brake assembly comprises a brake lining (D-8), an oil distribution sleeve (D-7), and an oil reservoir having a piston (D-5); the brake lining (D-8) and the oil distribution sleeve (D-7) enclose a hydraulic oil chamber; when the hydraulic oil is pressed into the hydraulic oil chamber from the oil reservoir, the magnetic circuit assembly brakes; when the hydraulic oil flows back to the oil reservoir, the magnetic circuit assembly rotates with the motor rotor. The present angular shaker has the advantage of being able to switch between intermediate-frequency and low-frequency, and has small output waveform distortion.

    Vibrator controlling circuit
    89.
    发明公开
    Vibrator controlling circuit 有权
    Steuerkreisfüreinen振动器

    公开(公告)号:EP1220177A2

    公开(公告)日:2002-07-03

    申请号:EP01310896.4

    申请日:2001-12-27

    CPC classification number: B06B1/023 B06B1/0246 B06B2201/53 B06B2201/70

    Abstract: This invention includes a square wave signal generating circuit 20 for generating a square wave signal whose frequency changes; a MOS transistor 12 which is turned on/off on the basis of the square wave signal to supply a driving current to a vibrator 14; and a frequency shift detecting circuit 24 for detecting a frequency shift between the square wave signal from the square wave generating circuit and a resonance frequency of the vibrator. The shift in the frequency generated by the square wave generating circuit is trimmed by a signal detected by the frequency shift detecting circuit.

    Abstract translation: 本发明包括一个方波信号发生电路20,用于产生频率变化的方波信号; MOS晶体管12,其基于方波信号导通/截止以向振动器14提供驱动电流; 以及用于检测来自方波发生电路的方波信号与振子的共振频率之间的频移的频移检测电路24。 由方波发生电路产生的频率偏移由频移检测电路检测到的信号进行微调。

    VIBRATION-GENERATING DEVICE AND PORTABLE TELEPHONE COMPRISING THE SAME
    90.
    发明公开
    VIBRATION-GENERATING DEVICE AND PORTABLE TELEPHONE COMPRISING THE SAME 审中-公开
    振动发生装置和包括该装置的便携式电话

    公开(公告)号:EP1199111A1

    公开(公告)日:2002-04-24

    申请号:EP01908333.6

    申请日:2001-03-06

    Abstract: There is provided a vibration generator that permits to operate by following a mechanical resonance point. The vibration generator 1 has a vibration generation portion 2 having an electromagnetic coil 13 and a magnet 11 float-fixed by a spring member 12. The electromagnetic coil 13 is square-wave driven to obtain vibration force. The vibration generator 1 comprises a driving control portion 10 for detecting a driving voltage of the electromagnetic coil 13 at a predetermined constant interval. By the driving control portion 10, a driving frequency of the electromagnetic coil 13 is made high when an induced voltage waveform of the driving voltage is of rightward increase type, and the driving frequency is made low when the induced voltage waveform is of leftward increase. This permits the driving frequency of the electromagnetic coil to be shifted to a resonance frequency of the vibration generation portion 2. Consequently, driving of the electromagnetic coil 13 can follow a mechanical resonance point so that an sufficiently large vibration can be obtained.

    Abstract translation: 提供了一个振动发生器,允许通过遵循机械共振点来操作。 振动发生器1具有振动产生部分2,该振动产生部分2具有电磁线圈13和通过弹簧构件12浮动固定的磁体11.电磁线圈13被方波驱动以获得振动力。 振动发生器1包括用于以预定的恒定间隔检测电磁线圈13的驱动电压的驱动控制部分10。 通过驱动控制部10,在驱动电压的感应电压波形为右向增加型时,电磁线圈13的驱动频率变高,在感应电压波形向左增加时,驱动频率变低。 由此,电磁线圈的驱动频率向振动发生部2的共振频率移动。由此,电磁线圈13的驱动能够追随机械共振点,能够得到足够大的振动。

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