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    Electric compressor
    191.
    发明专利
    Electric compressor 有权
    电动压缩机

    公开(公告)号：JP2014020266A

    公开(公告)日：2014-02-03

    申请号：JP2012158973

    申请日：2012-07-17

    Applicant: Denso Corp ,  株式会社デンソー

    Inventor： SAKAI TSUYOSHI

    IPC: F04B49/10 ,  F04B49/06

    CPC classification number: H02P29/02 ,  F04B35/04 ,  F04B49/06 ,  F04B49/065 ,  F04B49/103 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2203/0205 ,  F04C18/0215 ,  F04C28/06 ,  F04C28/28 ,  F04C29/047 ,  F04C2240/403 ,  F04C2240/808 ,  F04C2240/81 ,  G06F1/06 ,  H02H6/00 ,  H02H7/08 ,  H02M1/36 ,  H02M7/5387 ,  H02M7/53871 ,  H02M2001/327 ,  H02P6/28 ,  H02P23/0027 ,  H02P23/0072 ,  H02P23/24 ,  H02P27/085 ,  H02P29/68

    Abstract: PROBLEM TO BE SOLVED: To provide an electric compressor capable of preventing an invertor circuit from getting an excessively-high temperature, and suppressing switching loss while reducing discomfort felt by a user and the like due to carrier noise.SOLUTION: A control device of the electric compressor sets a temperature rising area A, a temperature lowering area B and a stationary area C on the basis of temperature change of a switching element acquired in a step 110, and sets a carrier frequency of every set area in a step 160. In the area A, the carrier frequency is changed according to the element temperature so that the higher the element temperature is, the lower the carrier frequency is in starting a motor, and in the area B and the area C, the carrier frequency is changed according to a driving rotational frequency of a compressing mechanism regardless of the element temperature so that the higher the driving rotational frequency of the compressing mechanism is, and lower the carrier frequency is.

    Abstract translation: 要解决的问题：提供一种能够防止逆变器电路变得过高的温度的电动压缩机，并且抑制开关损失，同时减少由于载波噪声而导致的用户感觉到的不适等。解决方案： 电动压缩机基于在步骤110中获取的开关元件的温度变化来设定温度上升区域A，降温区域B和静止区域C，并且在步骤160中设定每个设定区域的载波频率。 区域A，载波频率根据元件温度而改变，使得元件温度越高，载波频率在起动电动机中越低，并且在区域B和区域C中，载波频率根据 与压缩机构的驱动旋转频率无关，而与元件温度无关，使得压缩机构的驱动旋转频率越高，并且c 载波频率是。

    Electric compressor
    192.
    发明专利
    Electric compressor 有权
    电动压缩机

    公开(公告)号：JP2012205445A

    公开(公告)日：2012-10-22

    申请号：JP2011069418

    申请日：2011-03-28

    Applicant: Panasonic Corp ,  パナソニック株式会社

    Inventor： KAMIYA TAKESHI ,  TSUKAHARA HIROTOMO

    IPC: H02P29/00 ,  F04B49/06 ,  F04B49/10 ,  H02P29/02

    CPC classification number: H02P31/00 ,  F04B35/04 ,  F04B49/10 ,  F04B2203/0201 ,  F04B2203/0202

    Abstract: PROBLEM TO BE SOLVED: To provide an electric compressor that prevents an electric shock from a residual voltage of a capacitor by shortening the time to detect the disconnection of a power supply.SOLUTION: Relative to a capacitor 114 having one end on a power supply line 111a and the other end on a ground line 111b on a power line 111 connecting a power connector 130 connected with a high voltage power supply 140 to a power element 118, a current detection section 113 is disposed closer to the power connector 130 on the power supply line 111a to detect a positive current flowing in the direction of the power element 118 from the high voltage power supply 140 and a negative current flowing in the opposite direction, and furthermore, a load resistance 112 directly coupling the power supply line 111a and the ground line 111b is disposed between the current detection section 113 and the power connector 130. When a current value detected by the current detection section 113 becomes less than zero, a control section 116 detects the disconnection of the high voltage power supply 140.

    Abstract translation: 要解决的问题：提供一种电动压缩机，其通过缩短检测电源断开的时间来防止电容器的残余电压的电击。 解决方案：相对于在电源线111a上具有一端的电容器114和将与高压电源140连接的电源连接器130连接到功率元件的电力线111上的接地线111b上的另一端 如图118所示，电流检测部分113设置在电源线111a上靠近电源连接器130的位置，以检测从高压电源140沿着功率元件118的方向流动的正电流和相反的电流 方向，此外，在电流检测部113和电源连接器130之间设置直接连接电源线111a和接地线111b的负载电阻112.当由电流检测部113检测到的电流值变得小于零时 控制部分116检测高压电源140的断开。版权所有：（C）2013，JPO＆INPIT

    Drive device for an electric compressor
    194.
    发明专利
    Drive device for an electric compressor 有权

    公开(公告)号：JP4259173B2

    公开(公告)日：2009-04-30

    申请号：JP2003124065

    申请日：2003-04-28

    Applicant: パナソニック株式会社

    Inventor： 吉田　　誠 ,  尚美 後藤

    IPC: F04B49/06 ,  B60H1/32 ,  F04B35/04 ,  F04B49/20 ,  H02P6/20 ,  H02P23/03

    CPC classification number: B60H1/3222 ,  B60H1/3226 ,  F04B35/04 ,  F04B49/20 ,  F04B2203/0201 ,  F04B2203/0202 ,  H02P23/03

    Abstract: Load fluctuation of a refrigerating cycle under severe conditions needs to be overcome. For instance, a compressor driver which can positively drive the compressor employed even in a vehicle is desirable. To be more specific, at the start of the compressor, a phase of the current flowing in the motor is controlled to be ahead of an induction voltage, then the advancement of the phase is controlled to decrease. Under an unstable condition to detect a position, such as at the start under pressure-difference, the foregoing control allows the phase to advance up to the current-phase where the max. torque can be produced, thereby drawing the instantaneous max. torque of the motor for starting the compressor. Then the control reduces the advancement for obtaining a stable operation. This control method can realize a compressor driver having start-performance enough to overcome pressure-difference.

    DRIVING CIRCUIT OF FLUID PUMP MODULE
    199.
    发明公开
    DRIVING CIRCUIT OF FLUID PUMP MODULE 审中-公开

    公开(公告)号：US20240035466A1

    公开(公告)日：2024-02-01

    申请号：US17943320

    申请日：2022-09-13

    Applicant: MICROJET TECHNOLOGY CO., LTD.

    Inventor： Hao-Jan Mou ,  Ching-Sung Lin ,  Yung-Chang Chen ,  Yung-Lung Han ,  Chi-Feng Huang

    IPC: F04B49/06 ,  H03K3/017 ,  F04B17/03

    CPC classification number: F04B49/065 ,  H03K3/017 ,  F04B17/03 ,  F04B2203/0201 ,  F04B2203/0202

    Abstract: A driving circuit of fluid pump module includes a microprocessor, a primary boost circuit, and a pump driving circuit is provided. The microprocessor receives an output signal with a large-width variable rectangular waveform, a driving voltage, a first detection current-feedback signal, and a second detection current-feedback signal. The primary boost circuit converts an inputted driving voltage into a direct current with a certain high voltage. The pump driving circuit receives the certain high voltage and is connected with the microprocessor to receive the voltage control signal and the pulse-width modulation (PWM) signal. The secondary boost circuit receives the certain high voltage to boost the certain high voltage into a working voltage for the fluid pump. The operation driving circuit receives the working voltage and provides the pulse-width modulation signal for the fluid pump through the second detection current-feedback signal.

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