Fixing apparatus
    1.
    发明授权
    Fixing apparatus 有权
    固定装置

    公开(公告)号:US09348277B2

    公开(公告)日:2016-05-24

    申请号:US14804169

    申请日:2015-07-20

    IPC分类号: G03G15/20

    摘要: A fixing apparatus configured to include a rotational member having a conductive layer, a coil having a helical shape, a resonance circuit including a resonance capacitor and configured to be formed together with the rotational member and the coil, a first converter driving the resonance circuit, a second converter used to control power to be supplied to the first converter, a frequency setting unit configured to set a driving frequency of the first converter according to at least one of a size of the recording material and a temperature at a sheet non-passing portion of the rotational member, and a power control unit controlling the second converter according to a temperature at a sheet passing portion of the rotational member to control the power to be supplied to the first converter from the second converter, wherein the conductive layer is caused to generate heat by electromagnetic induction.

    摘要翻译: 一种定影装置,包括具有导电层的旋转构件,具有螺旋形状的线圈,包括谐振电容器的谐振电路,并且被配置为与所述旋转构件和所述线圈一起形成,驱动所述谐振电路的第一转换器, 用于控制向第一转换器供电的第二转换器,频率设定单元,被配置为根据记录材料的尺寸和不通过的纸张的温度中的至少一个来设置第一转换器的驱动频率 旋转构件的一部分,以及功率控制单元,根据旋转构件的片材通过部分处的温度来控制第二转换器,以控制从第二转换器提供给第一转换器的功率,其中引起导电层 通过电磁感应产生热量。

    POWER SOURCE DEVICE AND IMAGE FORMING APPARATUS
    2.
    发明申请
    POWER SOURCE DEVICE AND IMAGE FORMING APPARATUS 有权
    电源设备和图像形成装置

    公开(公告)号:US20130100712A1

    公开(公告)日:2013-04-25

    申请号:US13649817

    申请日:2012-10-11

    IPC分类号: H02M3/335

    CPC分类号: H02M3/33592 Y02B70/1475

    摘要: A power source device that outputs a DC voltage includes a rectification unit configured to rectify an input pulse voltage, a voltage-current conversion unit disposed on a side where the pulse voltage is input into the rectification unit, a current-voltage conversion unit configured to convert a current from the voltage-current conversion unit into a voltage, and a comparison unit configured to compare the voltage from the current-voltage conversion unit with a reference voltage. An operation of the rectification unit is controlled based on an output from the comparison unit.

    摘要翻译: 输出直流电压的电源装置包括:整流单元,被配置为对输入脉冲电压进行整流;电压 - 电流转换单元,设置在所述脉冲电压输入到所述整流单元的一侧;电流 - 电压转换单元,被配置为 将来自电压 - 电流转换单元的电流转换为电压,以及比较单元,用于将来自电流 - 电压转换单元的电压与参考电压进行比较。 基于比较单元的输出来控制整流单元的动作。

    Fixing apparatus
    3.
    发明授权

    公开(公告)号:US09606482B2

    公开(公告)日:2017-03-28

    申请号:US15134178

    申请日:2016-04-20

    IPC分类号: G03G15/20

    摘要: A fixing apparatus configured to include a rotational member having a conductive layer, a coil having a helical shape, a resonance circuit including a resonance capacitor and configured to be formed together with the rotational member and the coil, a first converter driving the resonance circuit, a second converter used to control power to be supplied to the first converter, a frequency setting unit configured to set a driving frequency of the first converter according to at least one of a size of the recording material and a temperature at a sheet non-passing portion of the rotational member, and a power control unit controlling the second converter according to a temperature at a sheet passing portion of the rotational member to control the power to be supplied to the first converter from the second converter, wherein the conductive layer is caused to generate heat by electromagnetic induction.

    FIXING DEVICE
    4.
    发明申请
    FIXING DEVICE 审中-公开

    公开(公告)号:US20160327892A1

    公开(公告)日:2016-11-10

    申请号:US15212072

    申请日:2016-07-15

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2053 G03G2215/2035

    摘要: Disclosed is a cylindrical rotary member including a conductive layer; a coil disposed inside the rotary member, the coil including a helical portion having a helical axis that is substantially parallel to a generatrix direction of the rotary member, the coil forming an alternating magnetic field to generate heat in the conductive layer by electromagnetic induction; a core disposed inside the helical portion, the core inducing a line of magnetic force of the alternating magnetic field; a roller coming in contact with an outer surface of the rotary member to form a fixing nip portion; and a metal stay disposed inside the rotary member, in which an image on a recording material is fixed to the recording material by being heated at the fixing nip portion and the stay is disposed outside the coil and has a shape that does not form an electrical loop around the coil.

    FIXING APPARATUS
    5.
    发明申请
    FIXING APPARATUS 审中-公开

    公开(公告)号:US20160231671A1

    公开(公告)日:2016-08-11

    申请号:US15134178

    申请日:2016-04-20

    IPC分类号: G03G15/20

    摘要: A fixing apparatus configured to include a rotational member having a conductive layer, a coil having a helical shape, a resonance circuit including a resonance capacitor and configured to be formed together with the rotational member and the coil, a first converter driving the resonance circuit, a second converter used to control power to be supplied to the first converter, a frequency setting unit configured to set a driving frequency of the first converter according to at least one of a size of the recording material and a temperature at a sheet non-passing portion of the rotational member, and a power control unit controlling the second converter according to a temperature at a sheet passing portion of the rotational member to control the power to be supplied to the first converter from the second converter, wherein the conductive layer is caused to generate heat by electromagnetic induction.

    Fixing device
    6.
    发明授权
    Fixing device 有权
    固定装置

    公开(公告)号:US09372451B2

    公开(公告)日:2016-06-21

    申请号:US14571129

    申请日:2014-12-15

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2053 G03G2215/2035

    摘要: In a fixing device, an alternating current is caused to flow through a coil so as to causes an electrically conductive layer of a rotating member to generate heat, and an unfixed image on a recording medium is heat fixed onto the recording medium by the heat generated by the electrically conductive layer. A frequency range of the alternating current is from 20.5 kHz to 100 kHz. With respect to a generatrix direction of the rotating member, a magnetic member and a spirally shaped portion of the coil have lengths, with which the magnetic member and the spirally shaped portion extend beyond both end portions of the rotating member.

    摘要翻译: 在定影装置中,使交流电流流过线圈,以使旋转构件的导电层产生热量,并且通过产生的热将记录介质上的未定影图像热固定到记录介质上 通过导电层。 交流电的频率范围为20.5kHz至100kHz。 对于旋转构件的母线方向,线圈的磁性构件和螺旋形部分具有长度,磁性构件和螺旋形部分通过该长度延伸超过旋转构件的两个端部。

    Power source device and image forming apparatus
    7.
    发明授权
    Power source device and image forming apparatus 有权
    电源装置和图像形成装置

    公开(公告)号:US09154043B2

    公开(公告)日:2015-10-06

    申请号:US13649817

    申请日:2012-10-11

    IPC分类号: H02M3/24 H02M3/335

    CPC分类号: H02M3/33592 Y02B70/1475

    摘要: A power source device that outputs a DC voltage includes a rectification unit configured to rectify an input pulse voltage, a voltage-current conversion unit disposed on a side where the pulse voltage is input into the rectification unit, a current-voltage conversion unit configured to convert a current from the voltage-current conversion unit into a voltage, and a comparison unit configured to compare the voltage from the current-voltage conversion unit with a reference voltage. An operation of the rectification unit is controlled based on an output from the comparison unit.

    摘要翻译: 输出直流电压的电源装置包括:整流单元,被配置为对输入脉冲电压进行整流;电压 - 电流转换单元,设置在所述脉冲电压输入到所述整流单元的一侧;电流 - 电压转换单元,被配置为 将来自电压 - 电流转换单元的电流转换为电压,以及比较单元,用于将来自电流 - 电压转换单元的电压与参考电压进行比较。 基于比较单元的输出来控制整流单元的动作。

    POWER SUPPLY APPARATUS AND IMAGE FORMING APPARATUS
    8.
    发明申请
    POWER SUPPLY APPARATUS AND IMAGE FORMING APPARATUS 有权
    电源设备和图像形成装置

    公开(公告)号:US20140254210A1

    公开(公告)日:2014-09-11

    申请号:US14188508

    申请日:2014-02-24

    IPC分类号: H02H3/20 G03G15/00

    摘要: The power supply apparatus includes a transformer having a primary and secondary sides, a first line and a second line to which an AC voltage is input from an AC power supply, a rectifying and smoothing unit that rectifies and smoothes the AC voltage, a shut-off unit provided between the first line and the rectifying and smoothing unit, a switching element that switches a current from the rectifying and smoothing unit to the primary side of the transformer, a first overvoltage detection unit that outputs a voltage corresponding to the AC voltage, a second overvoltage detection unit that outputs an overvoltage detection signal; and a control unit that controls the shut-off unit to shut off the input of the AC voltage.

    摘要翻译: 电源装置包括具有一次侧和次侧的变压器,从交流电源输入交流电压的第一线和第二线,整流和平滑交流电压的整流和平滑单元, 设置在第一线路与整流平滑单元之间的切断单元,将整流平滑单元的电流切换到变压器初级侧的开关元件,输出与交流电压对应的电压的第一过电压检测单元, 输出过电压检测信号的第二过电压检测单元; 以及控制单元,其控制所述切断单元切断所述交流电压的输入。