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公开(公告)号：US5052041A
公开(公告)日：1991-09-24
申请号：US485563
申请日：1990-02-27
CPC分类号： G10K11/1782 , F25D29/00 , F25B2500/12 , F25D2201/30 , F25D2500/02 , G10K2210/1054 , G10K2210/106 , G10K2210/3011 , G10K2210/3033 , G10K2210/3219 , G10K2210/503
摘要： A silencer for refrigerators includes a microphone for detecting noise produced by a compressor disposed in a machine compartment and converting the noise to an electrical signal, a signal converter converting the electrical signal generated by the microphone to a corresponding sound wave signal suitable for deadening the noise from the compressor by the effect of the sound wave interference, a speaker driven in response to the sound wave signal generated by the signal converter such that the sound is directed to the interior of the machine compartment of the refrigerator, a storage for previously storing data of noise patterns of the compressor in the abnormal condition of an evaporator as reference patterns, and a control comparing the electrical signal generated by the microphone with the data of the reference noise patterns stored in the storage, thereby determining as to whether or not the evaporator is abnormal.
摘要翻译： 用于冰箱的消声器包括麦克风，用于检测设置在机舱中的压缩机产生的噪声并将噪声转换成电信号;信号转换器，其将由麦克风产生的电信号转换成适于消除噪声的对应声波信号 由压缩机通过声波干扰的作用，响应于由信号转换器产生的声波信号而驱动的扬声器，使得声音被引导到冰箱的机舱的内部，用于预先存储数据的存储器 在蒸发器的异常状态下的压缩机的噪声模式作为参考模式，以及将由麦克风产生的电信号与存储在存储器中的参考噪声模式的数据进行比较的控制，从而确定蒸发器 是异常的
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2.发明授权Silencer attenuating a noise from a noise source to be ventilated and a method for active control of its noise attenuation system 失效消声器将来自噪声源的噪声衰减为通风，以及用于主动控制其噪声衰减系统的方法
公开(公告)号：US5253486A
公开(公告)日：1993-10-19
申请号：US692359
申请日：1991-04-26
CPC分类号： F25D29/00 , G10K11/1784 , F25B2500/12 , F25D2201/30 , G10K2210/1054 , G10K2210/109 , G10K2210/3028 , G10K2210/3036 , G10K2210/3045
摘要： A silencer attenuating a noise from a noise source to be ventilated of this invention comprises a machine compartment with a one-dimensional duct configuration whose sectional dimension is sufficiently small in comparison with the wavelength of the noise to be attenuated, a compressor and/or other machinery disposed within the machine compartment, an opening for dissipation of heat as disposed in a wall of the machine compartment and opening in a direction generally perpendicular to the direction of advance of sound within the machine compartment, a vibration pickup for detecting the vibration of the machinery corresponding to the output noise of the machinery, and a control circuit for processing output signals from the vibration pickup to drive a sound generator such as a speaker. The sound generator outputs a controlling signal dependent on the machine noise to cancel the noise about to emerge from the machine compartment.
摘要翻译： 一种消音器，其能够衰减本发明通风的噪声源的噪声，其特征在于：具有一维管道结构的机舱，其截面尺寸与要衰减的噪声的波长相比足够小，压缩机和/或其它 设置在机器间内的机械，设置在机器隔室的壁上并散开热量的开口，并且在与机舱内的声音方向大致垂直的方向上开口，用于检测机械室内的振动的振动拾取器 对应于机械的输出噪声的机械，以及用于处理来自振动拾取器的输出信号以驱动诸如扬声器的声音发生器的控制电路。 声音发生器输出取决于机器噪音的控制信号，以消除要从机器舱出来的噪音。
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公开(公告)号：US5127235A
公开(公告)日：1992-07-07
申请号：US626042
申请日：1990-12-14
IPC分类号： F25D23/00 , G10K11/178
CPC分类号： F25D23/00 , G10K11/1784 , F25B2500/12 , F25D2201/30 , G10K2210/1054 , G10K2210/109 , G10K2210/3036 , G10K2210/3045 , G10K2210/3229
摘要： In a low noise refrigerator, a rotary compressor constituting a noise source is arranged within a machine chamber provided with an opening in one location, which chamber has a one-dimensional duct construction having a cross-sectional dimension which is small relative to trhe wavelength of the noise which is to be reduced. A vibration pick-up being located in the vicinity of the rotary compressor. The vibration pick-up detects compressor vibrations which correlate to the compressor noise, in the tangential direction of the compressor. There is provided a control circuit that processes the output signal of the vibration pick-up. In the machine chamber, a sound generator is driven by the output signal of the control circuit to generate a control sound, so that the compressor noise which tries to issue from the opening is canceled by the control sound.
摘要翻译： 在低噪声冰箱中，构成噪声源的旋转式压缩机布置在设置有一个位置的开口的机器室中，该室具有一维管道结构，其横截面尺寸相对于波长的波长小 要减少的噪音。 振动拾取器位于旋转压缩机附近。 振动拾取器检测与压缩机噪声相关的压缩机振动，压缩机的切线方向。 提供了处理振动拾取器的输出信号的控制电路。 在机器室中，发声器由控制电路的输出信号驱动以产生控制声，从而通过控制声来消除试图从开口发出的压缩机噪音。
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公开(公告)号：US5125241A
公开(公告)日：1992-06-30
申请号：US666049
申请日：1991-03-07
IPC分类号： F25D23/00 , G10K11/178
CPC分类号： F25D23/006 , G10K11/1784 , G10K11/1788 , F25B2500/12 , F25D2201/30 , G10K2210/1054 , G10K2210/106 , G10K2210/109 , G10K2210/30232 , G10K2210/3037 , G10K2210/3045 , G10K2210/3048 , G10K2210/3214
摘要： A refrigerator with a noise attenuating function includes a cabinet having storage and machine compartments, a compressor disposed in the machine compartment, a noise detector disposed in the machine compartment for detecting noise produced from driving of the compressor and converting the noise to an electrical signal, an operational unit for converting the electrical signal to an acoustic signal for an active noise control, a cancellation sound producer producing a sound of opposite phase with the noise based on the acoustic signal so that the noise is attenuated, a noise attenuation monitoring sound receiver for monitoring the noise attenuating effect of the cancellation sound producer, an adaptive control circuit changing an operational factor of the operational unit by a predetermined amount when the monitoring result of the noise attenuation monitoring sound receiver is out of a predetermined tolerance, the adaptive control circuit being adapted to continuously perform the operation of changing the operational factor until the monitoring result comes into the tolerance, and a connecting member for integrally connecting the cancellation sound producer and the noise attenuation monitoring sound receiver.
摘要翻译： 具有噪声衰减功能的冰箱包括具有存储和机器隔间的机壳，设置在机舱中的压缩机，设置在机器室中的噪声检测器，用于检测由压缩机的驱动产生的噪声并将噪声转换成电信号， 用于将电信号转换为用于主动噪声控制的声信号的操作单元，抵消声音产生器，其基于声信号产生与噪声相反相位的声音，使得噪声被衰减;噪声衰减监测声音接收器，用于 监视消除声音发生器的噪声衰减效果，当噪声衰减监测声音接收机的监视结果超出预定公差时，自适应控制电路将操作单元的操作系数改变预定量，自适应控制电路是 适应于连续执行操作 改变操作因素直到监视结果达到公差的离子，以及用于将取消声音产生器和噪声衰减监测声音接收器整体连接的连接构件。
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公开(公告)号：US4989252A
公开(公告)日：1991-01-29
申请号：US413559
申请日：1989-09-28
IPC分类号： F25D19/00 , F25D23/00 , G10K11/178
CPC分类号： G10K11/1788 , F25D23/00 , F25B2500/12 , F25D2201/30 , G10K2210/1054 , G10K2210/3036 , G10K2210/3214 , G10K2210/3219
摘要： A silencer for refrigerators includes a microphone receiving sound from a motor-compressor mounted in a machine compartment to thereby generate an electrical signal in accordance with the received sound, a signal converter converting the electrical signal generated by the noise receiver to an electrical signal for producing sound deadening the sound from the motor-compressor by the effect of sound wave interference, and a speaker for producing the sound based on the signal converted by the signal converter so that the sound interferes with the sound from the motor-compressor. The machine compartment is closed with a ventilating opening left opened. One of dimensions of the machine compartment in the three-dimensional directions is set at a value larger than those of the others so that a standing wave of the sound from the motor-compressor in the machine compartment is composed only in a primary mode in a low frequency range below 700 Hz. The ventilating opening is formed into a generally rectangular shape extending in the direction perpendicular to the direction that the standing wave travels.
摘要翻译： 用于冰箱的消音器包括麦克风，其接收来自安装在机舱中的马达 - 压缩机的声音，从而根据接收到的声音产生电信号;信号转换器，将由噪声接收器产生的电信号转换成电信号，以产生 通过声波干扰对来自电动压缩机的声音进行声音衰减，以及基于由信号转换器转换的信号产生声音的扬声器，使得声音干扰来自电动压缩机的声音。 机舱隔开通风口关闭。 机舱在三维方向上的尺寸之一被设定为大于其他尺寸的值，使得来自机舱中的电动机 - 压缩机的声音的驻波仅在主模式中构成 低频范围低于700 Hz。 通风口形成为在与驻波方向垂直的方向上延伸的大致矩形形状。
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公开(公告)号：US5117642A
公开(公告)日：1992-06-02
申请号：US626705
申请日：1990-12-14
IPC分类号： F25D23/00 , G10K11/178
CPC分类号： F25D23/00 , G10K11/1784 , F25D2201/30 , G10K2210/1054 , G10K2210/109 , G10K2210/3036 , G10K2210/3045
摘要： In a low noise refrigerator, a compressor constituting a noise source is arranged within a machine chamber provided with an opening in one location, which chamber has a one-dimensional duct construction in which its cross-sectional dimension is small relative to the wavelength of the noise which is to be reduced. A vibration pick-up is located in the vicinity of the compressor. The vibration pick-up detects compressor vibrations which correlate to the compressor noise of the compressor. There is provided a control circuit that processes the output signal of the vibration pick-up. In the machine chamber, a sound generator is driven by the output signal of the control circuit to generate a control sound, so that the compressor noise which tries to issue from the opening is canceled by the control sound.
摘要翻译： 在低噪声冰箱中，构成噪声源的压缩机布置在设置有一个位置的开口的机器室中，该室具有一维管道结构，其横截面尺寸相对于 要减少的噪音。 振动拾取器位于压缩机附近。 振动拾取器检测与压缩机的压缩机噪声相关的压缩机振动。 提供了处理振动拾取器的输出信号的控制电路。 在机器室中，发声器由控制电路的输出信号驱动以产生控制声，从而通过控制声来消除试图从开口发出的压缩机噪音。
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公开(公告)号：US5093864A
公开(公告)日：1992-03-03
申请号：US485559
申请日：1990-02-27
CPC分类号： G10K11/1782 , F25B2500/12 , F25D2201/30 , G10K2210/1054 , G10K2210/3011 , G10K2210/3031 , G10K2210/3033 , G10K2210/3041 , G10K2210/3214
摘要： A silencer for deadening noise produced with drive of a motor-compressor disposed in a machine compartment of a refrigerator includes a data storage for previously storing sound wave data for every starting condition of the compressor, the sound wave data corresponding to sound waves produced by the compressor during a starting period thereof, the sound wave data being sound wave signals suitable for reducing sound from the compressor by the effect of sound wave interference, a control for determining the starting condition at the starting of the compressor, the control further reading out, from the data storage, the sound wave data corresponding to the determined starting condition, during the starting of the compressor, and a sound producer driven in response to the sound wave data read out from the data storage in the form of an electrical signal, thereby producing sound waves, the sound producer being disposed so that sound is directed to the interior of the machine compartment.
摘要翻译： 用于设置在冰箱的机舱中的电动压缩机的驱动产生的消音噪音的消声器包括用于预先存储压缩机的每个起始状态的声波数据的数据存储器，对应于由压缩机产生的声波的声波数据 压缩机在起动期间，声波数据是适合于通过声波干扰的作用减少来自压缩机的声音的声波数据，用于确定压缩机启动时的起动条件的控制，控制进一步读出， 从数据存储器，在压缩机启动期间对应于所确定的启动条件的声波数据和响应于以电信号的形式从数据存储器读出的声波数据而被驱动的声音发生器，从而 产生声波，声音产生器被布置成使得声音被引导到机器室的内部。
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公开(公告)号：US5499301A
公开(公告)日：1996-03-12
申请号：US323730
申请日：1994-10-20
申请人： Yuko Sudo , Susumu Saruta , Yasuyuki Sekiguchi
发明人： Yuko Sudo , Susumu Saruta , Yasuyuki Sekiguchi
IPC分类号： F01N1/06 , G10K11/16 , G10K11/178 , H03H21/00
CPC分类号： G10K11/1784 , G10K2210/104 , G10K2210/1054 , G10K2210/109 , G10K2210/121 , G10K2210/3032 , G10K2210/3045
摘要： An active noise cancelling apparatus for actively controlling noise generated by a compressor, where noise is apt to externally leak from an opening portion of a machine chamber storing the compressor driven by an A.C. power supply. The active noise cancelling apparatus includes: a microphone, provided in the vicinity of the opening portion, for detecting noise generated by the compressor; fundamental wave component extracting portion for extracting a fundamental wave component of rotation frequency of the compressor, from a sound signal of the noise detected by the microphone; periodic signal generating circuit for a periodic signal correlative to the fundamental wave component extracted by the fundamental wave component extracting portion; periodic signal outputting circuit for outputting a predetermined periodic signal by means of comparing a phase of the periodic signal generated by the periodic signal generating circuit with a phase of the fundamental wave component; uncancelled sound extracting portion for extracting noise having been not cancelled, excluding the fundamental wave component; sound source waveform generating circuit for forming a harmonics component from the signal outputted by the fundamental wave component extracting circuit; control signal generating circuit for correcting a control signal outputted from the sound source waveform generating circuit, based on a signal from the uncancelled sound extracting portion and for generating the corrected signal in a feedback manner; and a loudspeaker for outputting the control signal generated from the control signal correcting circuit.
摘要翻译： 一种主动噪声消除装置，用于主动地控制由压缩机产生的噪声，其中噪声易于从存储由交流电源驱动的压缩机的机器室的开口部分泄漏。 有源噪声消除装置包括：麦克风，设置在开口部分附近，用于检测压缩机产生的噪声; 基波分量提取部分，用于从由麦克风检测到的噪声的声音信号中提取压缩机的旋转频率的基波分量; 周期信号发生电路，用于与由基波分量提取部分提取的基波分量相关的周期信号; 周期信号输出电路，用于通过将周期信号发生电路产生的周期信号的相位与基波分量的相位进行比较来输出预定的周期信号; 不包括基波分量的用于提取未被消除的噪声的未通知声音提取部分; 声源波形发生电路，用于根据由基波分量提取电路输出的信号形成谐波分量; 控制信号发生电路，用于根据来自未经声音提取部分的信号校正从声源波形发生电路输出的控制信号，并以反馈方式产生校正信号; 以及用于输出从控制信号校正电路产生的控制信号的扬声器。
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公开(公告)号：US5535283A
公开(公告)日：1996-07-09
申请号：US174004
申请日：1993-12-28
申请人： Susumu Saruta , Yasuyuki Sekiguchi
发明人： Susumu Saruta , Yasuyuki Sekiguchi
IPC分类号： F16L55/04 , G10K11/16 , G10K11/178
CPC分类号： G10K11/1784 , G10K2210/104 , G10K2210/112 , G10K2210/117 , G10K2210/3027 , G10K2210/3028 , G10K2210/3218
摘要： An active noise attenuating device applied to a draft duct of an air condition system including a microphone disposed in a propagation path of noise for detecting the noise, a loud speaker disposed in the noise propagation path, a control circuit for producing a control signal on the basis of the detection signal from the microphone, the control signal being supplied to the loud speaker so that the speaker produces an interference sound having the same amplitude as of the noise detected by the microphone and a phase opposite to the noise, at a control point in the noise propagation path, and a high pass filter for damping or cutting off a frequency component contained in the control signal and belonging to a low frequency range in which the loud speaker is unable to reproduce the interference sound.
摘要翻译： 一种主动噪声衰减装置，其应用于包括设置在用于检测噪声的噪声传播路径中的麦克风的空调系统的通风管道，设置在噪声传播路径中的扬声器，控制电路，用于产生控制信号 基于来自麦克风的检测信号，控制信号被提供给扬声器，使得扬声器在控制点处产生具有与由麦克风检测到的噪声相同的幅度和与噪声相反的相位的干扰声音 以及高通滤波器，用于阻尼或切断包含在控制信号中并且属于该扬声器不能再现干扰声的低频范围的频率分量。
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公开(公告)号：US5517571A
公开(公告)日：1996-05-14
申请号：US214325
申请日：1994-03-17
申请人： Susumu Saruta , Yasuyuki Sekiguchi
发明人： Susumu Saruta , Yasuyuki Sekiguchi
IPC分类号： F04C29/06 , G10K11/178 , A61F11/06 , H03B29/00 , H04B15/00
CPC分类号： G10K11/1784 , G10K2210/112 , G10K2210/3017 , G10K2210/3045 , G10K2210/3049
摘要： An active noise attenuating device includes a first microphone located in a propagation path of noise, a loud speaker located downstream from the first microphone, a second microphone located downstream from the loud speaker for receiving sound, and an operational unit for executing an operation on the basis of a detection signal from the first microphone to generate a control signal supplied to the loud speaker so that a sound interfering with the noise is produced. An operational factor of the operational unit is controlled by an adaptive controller on the basis of the detection signal from the second microphone so that an amount of noise attenuated by the sound produced from the loud speaker is rendered maximum. A transfer characteristic of a transfer path between the loud speaker and the second microphone is identified on the basis of the detection signals generated by the second microphone when a sound represented by a periodical identifying signal is produced in a plurality of periods. An operational factor of the adaptive controller is adjusted by an adaptive control identifying unit on the basis of the identified transfer characteristic.
摘要翻译： 有源噪声衰减装置包括位于噪声传播路径中的第一麦克风，位于第一麦克风下游的扬声器，位于扬声器下游的用于接收声音的第二麦克风，以及用于对所述第一麦克风执行操作的操作单元 来自第一麦克风的检测信号的基础，以产生提供给扬声器的控制信号，从而产生干扰噪声的声音。 基于来自第二麦克风的检测信号，由自适应控制器控制操作单元的操作因素，使得由扬声器产生的声音衰减的噪声量最大化。 在由多个周期产生由周期性识别信号表示的声音的基础上，基于由第二麦克风产生的检测信号来识别扬声器和第二麦克风之间的传送路径的传送特性。 基于所识别的传送特性，通过自适应控制识别单元调整自适应控制器的操作系数。
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