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公开(公告)号：US20190210055A1
公开(公告)日：2019-07-11
申请号：US16351569
申请日：2019-03-13
发明人： Masao MAEDA , Hidetaka TOGO
CPC分类号： B05B17/0623 , A61M11/00 , B05B17/06 , B06B1/02 , B06B1/0223 , B06B1/06
摘要： An ultrasonic vibrator driving apparatus applies a sine-waveform alternating voltage as a drive voltage via a conversion circuit to an ultrasonic vibrator that has a unique resonance frequency. A first current detector that detects a first current that flows from the drive voltage generator to the conversion circuit and a second current detector that detects a second current that flows from the conversion circuit to the ultrasonic vibrator are included. A frequency controller performs control on the drive voltage generator to change the frequency of a square-waveform alternating voltage so that the difference between the first current and the second current is reduced or approaches a minimum.
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公开(公告)号：US20190209790A1
公开(公告)日：2019-07-11
申请号：US16352890
申请日：2019-03-14
发明人： Masao MAEDA , Hidetaka TOGO
CPC分类号： A61M11/005 , A61M11/00 , B05B17/06 , B06B1/0284 , B06B1/06 , B06B1/0644 , B06B3/02 , B06B2201/76
摘要： An ultrasonic vibrator driving apparatus performs driving by applying an alternating voltage as a drive voltage to an ultrasonic vibrator that includes a piezoelectric element and has a unique resonance frequency. The drive voltage is generated with a variable frequency in a frequency range including the resonance frequency of the ultrasonic vibrator. The frequency of the drive voltage is repeatedly swept with a predetermined sweep width and a predetermined sweep period so as to include the resonance frequency, based on a reference frequency set according to the resonance frequency of the ultrasonic vibrator. The sweep period and the sweep width are restricted by being associated so as to fall within a predetermined allowed range on a two-dimensional map divided by the sweep period and the sweep width.
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公开(公告)号：US20240058550A1
公开(公告)日：2024-02-22
申请号：US18385965
申请日：2023-11-01
CPC分类号： A61M11/00 , B05B17/0607
摘要： In a nebulizer of the present invention, a main body is being mounted with a power supply unit and an oscillation unit generating an oscillation output including a first frequency component and a second frequency component different from each other. A first replacement member is being mounted with an atomization unit configured to atomize, using the first frequency component, a first liquid that is supplied. A second replacement member is being mounted with an atomization unit configured to atomize, using the second frequency component, a second liquid that is supplied. The first and/or the second replacement members include a functional unit configured to operate with an additional frequency component different from the first and second frequency components. A replacement member attached to the main body receives the oscillation output including the first, second and additional frequency components from the main body.
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公开(公告)号：US20240042143A1
公开(公告)日：2024-02-08
申请号：US18381679
申请日：2023-10-19
CPC分类号： A61M11/005 , H02J50/12 , A61M15/0085 , A61M2205/8243
摘要： A nebulizer comprising a power supply system of the present invention performs wireless power supply from a power transmission-side circuit to a power reception-side circuit. The power transmission-side circuit transmits a power to the power reception-side circuit at a certain oscillation frequency through a power transmission coil. In the power reception-side circuit, a power reception coil and a load configure a power reception-side resonance circuit to determine a resonance frequency of the power reception-side resonance circuit. When the resonance frequency of the power reception-side resonance circuit changes due to a change in an impedance of a load during power supply, a control unit controls an oscillation frequency to maintain a power transmission efficiency from the power transmission-side circuit to the power reception-side circuit.
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