High voltage controller with improved monitoring and diagnostics
    82.
    发明授权
    High voltage controller with improved monitoring and diagnostics 有权
    高压控制器具有改进的监控和诊断功能

    公开(公告)号:US08861228B2

    公开(公告)日:2014-10-14

    申请号:US12960849

    申请日:2010-12-06

    Abstract: A high voltage controller configured to drive a high voltage generator. The high voltage controller includes a voltage select input and a current select input, an actual voltage input and an actual current input. First circuitry is configured to generate an alternating current (AC) drive signal. Second circuitry configured to generate a direct current (DC) drive signal. Closed loop control circuitry is configured to adjust the DC drive signal based on at least one of the voltage select and current select inputs and at least one of the actual voltage and actual current inputs. The first circuitry may include a push-pull circuit. The second circuitry may include a pulse width modulation (PWM) controller. A high voltage generator may be coupled to the AC and DC drive signals. The high voltage generator may include a high voltage transformer having a pair of primary windings and center tap. The AC drive signal may be coupled to the primary windings and the DC drive signal may be coupled to the center tap.

    Abstract translation: 配置为驱动高压发生器的高压控制器。 高电压控制器包括电压选择输入和电流选择输入,实际电压输入和实际电流输入。 第一电路被配置为产生交流(AC)驱动信号。 配置成产生直流(DC)驱动信号的第二电路。 闭环控制电路被配置为基于电压选择和电流选择输入中的至少一个以及实际电压和实际电流输入中的至少一个来调整DC驱动信号。 第一电路可以包括推挽电路。 第二电路可以包括脉宽调制(PWM)控制器。 高电压发生器可以耦合到AC和DC驱动信号。 高压发生器可以包括具有一对初级绕组和中心抽头的高压变压器。 AC驱动信号可以耦合到初级绕组,并且DC驱动信号可以耦合到中心抽头。

    Apparatus and method for independently controlling multiple material
applicators
    83.
    发明授权
    Apparatus and method for independently controlling multiple material applicators 有权
    用于独立控制多种材料施加器的装置和方法

    公开(公告)号:US6154355A

    公开(公告)日:2000-11-28

    申请号:US189791

    申请日:1998-11-10

    CPC classification number: B05B12/04 B05B12/00 B05B5/005 B05B5/0531 B05B5/10

    Abstract: An apparatus for independent voltage, air pressure, and/or fluid pressure control of multiple material or coating applicators, such as paint spray guns, includes a multiple gun control board that allows a single power supply to provide voltage to a plurality of paint guns and an independent gun control board that can output a different voltage signal for each gun to generate different gun operating voltages, different air pressures, and/or different fluid pressures. The independent gun control board includes a separate relay and potentiometer for each gun to be controlled. The potentiometer is adjustable so that the output voltage of the independent gun control board can be varied. The output voltage can be used to control the paint spray gun operating voltage and/or be sent to a pressure transducer to adjust the air and/or fluid pressure at which the triggered gun operates. The present invention therefore allows independent voltage and/or pressure control of each gun without requiring each gun to have its own separate power supply and pressure regulator, greatly reducing space and the number of components needed to operate multiple guns.

    Abstract translation: 用于独立电压,空气压力和/或多个材料或涂料施加器(例如喷漆枪)的流体压力控制的装置包括多个喷枪控制板,其允许单个电源向多个涂料枪提供电压, 一个独立的喷枪控制板,可以为每个喷枪输出不同的电压信号,以产生不同的喷枪工作电压,不同的空气压力和/或不同的流体压力。 独立的喷枪控制板包括一个单独的继电器和电位计,用于每个要控制的喷枪。 电位计是可调的,可以改变独立喷枪控制板的输出电压。 输出电压可用于控制喷漆枪的工作电压和/或被输送到压力传感器以调节触发的喷枪操作的空气和/或流体压力。 因此,本发明允许每个喷枪的独立电压和/或压力控制,而不需要每个喷枪具有其自己的单独的电源和压力调节器,大大减少了操作多个枪所需的空间和部件的数量。

    Processes, device for producing a high voltage and installation for
electrostatic spraying of a coating product
    84.
    发明授权
    Processes, device for producing a high voltage and installation for electrostatic spraying of a coating product 失效
    用于生产高电压的装置和用于静电喷涂涂层产品的装置

    公开(公告)号:US5847945A

    公开(公告)日:1998-12-08

    申请号:US678037

    申请日:1996-07-10

    CPC classification number: B05B5/10 B05B5/053 H02H7/003

    Abstract: A method and device for monitoring operation of a high voltage generator which converts an input voltage into an output voltage which is higher than the input voltage, by measuring at least one first physical quantity which is representative of the input voltage; deriving at least one parameter from the at least one measured first physical quantity; comparing the at least one parameter with a second measured physical quantity which is representative of the magnitude of the output voltage; and producing a response when a predetermined minimum differential exists between the at least one parameter and the second measured physical quantity.

    Abstract translation: 一种用于监视高电压发生器的操作的方法和装置,通过测量表示输入电压的至少一个第一物理量,将输入电压转换成高于输入电压的输出电压; 从所述至少一个测量的第一物理量导出至少一个参数; 将所述至少一个参数与表示所述输出电压的大小的第二测量物理量进行比较; 并且当在所述至少一个参数和所述第二测量物理量之间存在预定的最小微分时产生响应。

    Method and apparatus for generating a high voltage
    85.
    发明授权
    Method and apparatus for generating a high voltage 失效
    用于产生高电压的方法和装置

    公开(公告)号:US5703770A

    公开(公告)日:1997-12-30

    申请号:US513027

    申请日:1995-08-09

    CPC classification number: B05B5/10 H02M3/28

    Abstract: A method and apparatus for generating a high voltage by converting input power at a low voltage to output power at a high voltage, by: supplying input power to a low voltage unit to produce a periodic signal having a frequency; supplying the periodic signal to a rectifier voltage multiplier of a specific type to cause the rectifier voltage multiplier to produce the output power at a high voltage, wherein the ratio of output power to input power is a function of the frequency of the periodic signal; identifying the type of the rectifier voltage multiplier; and continually adjusting the frequency of the periodic signal toward a value which maximizes the ratio of output power to input power.

    Abstract translation: 一种通过以下方式产生高电压的方法:通过将低电压的输入功率转换为高电压的输出功率,通过以下方法和装置:向低电压单元提供输入电力以产生具有频率的周期性信号; 将周期信号提供给特定类型的整流器电压倍增器,以使整流器电压倍增器在高电压下产生输出功率,其中输出功率与输入功率的比值是周期信号频率的函数; 识别整流器电压倍增器的类型; 并且将周期信号的频率持续调节到将输出功率与输入功率的比率最大化的值。

    Arc preventing electrostatic power supply
    86.
    发明授权
    Arc preventing electrostatic power supply 失效
    电弧防静电电源

    公开(公告)号:US5138513A

    公开(公告)日:1992-08-11

    申请号:US644935

    申请日:1991-01-23

    CPC classification number: H02H7/003 H02H1/0015 B05B5/053

    Abstract: An arc preventing electrostatic power supply suitable for operating an electrostatic paint atomizer such as a rotary atomizer. High voltage control is based on the high voltage current, as measured in the ground return path. The power supply is controlled to provide a substantially constant high voltage DC output up to a predetermined current and an output voltage which rapidly drops off as the current increases above the predetermined current. The magnitude of an AC component superimposed on the high voltage DC current is detected to determine incipient arcing. Upon detecting an incipient arcing condition, the output voltage is interrupted for a predetermined short time. When the output voltage is turned back on, it is ramped up from a low level back to the normal high voltage level. While the output voltage is less than a predetermined low level, the sensitivity of the incipient arc detection circuit is increased. The output voltage is again interrupted for the predetermined short time whenever an incipient arcing event is detected.

    Abstract translation: 适用于操作诸如旋转雾化器的静电喷雾雾化器的防弧静电电源。 高压控制是基于高压电流,如在接地回路中测量的。 控制电源以提供高达预定电流的基本上恒定的高压DC输出以及当电流增加到高于预定电流时快速下降的输出电压。 检测叠加在高压直流电流上的交流分量的大小以确定初始电弧。 在检测到初始电弧状态时,输出电压中断预定的短时间。 当输出电压重新导通时,它从低电平回升到正常的高电压电平。 当输出电压小于预定的低电平时,起动电弧检测电路的灵敏度增加。 每当检测到初始电弧事件时,输出电压再次中断预定的短时间。

    Method of selecting optimum series limiting resistance for high voltage
control circuit
    87.
    发明授权
    Method of selecting optimum series limiting resistance for high voltage control circuit 失效
    选择高压控制电路最佳串联限制电阻的方法

    公开(公告)号:US4890190A

    公开(公告)日:1989-12-26

    申请号:US281651

    申请日:1988-12-09

    Inventor: Dale R. Hemming

    CPC classification number: H02M7/103 B05B5/10

    Abstract: A method of selecting the optimum value for a series limiting resistor in conjunction with a high-voltage power supply of the Cockcroft-Walton type, wherein the high-voltage circuit is used to deliver an electrostatic field in a volatile atmosphere of the type associated with paint spraying systems.

    Abstract translation: 结合Cockcroft-Walton型高压电源选择串联限制电阻器的最佳值的方法,其中高电压电路用于在与...相关的类型的易失性气氛中传送静电场 油漆喷涂系统。

    Flexible voltage cable for electrostatic spray gun
    88.
    发明授权
    Flexible voltage cable for electrostatic spray gun 失效
    静电喷枪柔性电压电缆

    公开(公告)号:US4739935A

    公开(公告)日:1988-04-26

    申请号:US839128

    申请日:1986-03-12

    CPC classification number: B05B5/10 H01T19/04

    Abstract: An electrostatic spray system including a spray device having an electrode for electrostatically charging coating particles emitted from the spray device toward an article to be coated, a high voltage electrostatic supply, and a high voltage insulated electrical cable interconnecting the electrostatic supply and the spray device electrode. The high voltage cable includes a fibrous resistive core, preferably fabricated from silicon carbide fibers, a fiber-restraining layer of insulative thread tightly wrapped spirally around the entirety of the core to prevent fiber ends from projecting outwardly from the core, an outer dielectric sheath, and an intermediate sheath sandwiched between the spirally wound inner fiber-restraining layer and the outer dielectric sheath and having a resistivity lying between that of the inner resistive fiber core and the outer dielectric sheath. The intermediate sheath provides uniform voltage stress distribution in the region surrounding the resistive core, thereby avoiding internal corona sites which cause degradation of the outer dielectric sheath, which might otherwise occur due to the very small diameter of the resistive core coupled with the very high operating voltages used in electrostatic spray coating operations. The intermediate sheath also avoids high voltage stresses at the ends of stray resistive fibers projecting through the spirally wound layer, which might otherwise occur due to the extremely small diameter of the projecting fibers.

    Abstract translation: 一种静电喷涂系统,其特征在于,具有喷雾装置,该喷雾装置具有用于将喷雾装置的喷射粒子喷射到待涂装物体的静电带电电极,高压静电电源以及使静电电源和喷射装置电极相互连接的高压绝缘电缆 。 高压电缆包括优选由碳化硅纤维制成的纤维电阻芯,绝缘螺纹的纤维限制层螺旋地围绕整个芯部螺旋地缠绕,以防止纤维端部从芯部向外突出,外部电介质护套, 以及夹在螺旋缠绕的内部纤维限制层和外部电介质护套之间并具有位于内部电阻纤维芯和外部电介质护套之间的电阻率的中间护套。 中间护套在围绕电阻芯的区域中提供均匀的电压应力分布,从而避免内部电晕位置,这导致外部电介质护套的退化,否则可能由于电阻芯的非常小的直径与非常高的工作 用于静电喷涂操作的电压。 中间护套还避免了在通过螺旋卷绕层突出的杂散电阻纤维的端部处的高电压应力,否则可能由于突出的纤维的极小直径而发生。

    Electrostatic spray device provided with electric-arc protection means
    89.
    发明授权
    Electrostatic spray device provided with electric-arc protection means 失效
    具有电弧保护装置的静电喷涂装置

    公开(公告)号:US4737887A

    公开(公告)日:1988-04-12

    申请号:US914479

    申请日:1986-10-01

    Applicant: Caryl Thome

    Inventor: Caryl Thome

    CPC classification number: H02H7/003 B05B5/10

    Abstract: An electronic safety device to prevent electrical arcing in electrostatic sprayer apparatus for spraying material such as paint comprises a device for generating a very low voltage AC signal in a fixed supply and control unit and a voltage step-up device in a mobile sprayer. A device sensitive to variations in the alternating current flowing in the conductors linking the generating device to the step-up device is connected to a disabling device capable, for example, of blocking the generating device when too sudden a current variation is measured, since such a current variation may precede electrical arcing.

    Abstract translation: 用于防止喷涂材料如涂料的静电喷涂装置中的电弧的电子安全装置包括用于在固定供应和控制单元中产生非常低电压的交流信号的装置以及移动式喷雾器中的升压装置。 在将发电装置连接到升压装置的导体中流动的交流电的变化敏感的装置连接到能够例如当测量电流变化太突然时阻塞发电装置的禁用装置,因为这样 电流变化可能在电弧之前。

    High voltage control
    90.
    发明授权
    High voltage control 失效
    高压控制

    公开(公告)号:US4710849A

    公开(公告)日:1987-12-01

    申请号:US752623

    申请日:1985-07-08

    Applicant: Alan J. Norris

    Inventor: Alan J. Norris

    CPC classification number: G05F1/607 B05B5/0531 B05B5/10 H01T19/04

    Abstract: Control of high voltage is effected using apparatus having a high impedance generator, the output being connected to a first member of low radius of curvature and a second member. The two members are spaced apart by a gas gap so that when the voltage between them exceeds a threshold value corona discharge across the gas can occur. Such apparatus is particularly useful in controlling voltage and hence the size and size distribution of liquid droplets in electrostatic spraying apparatus.

    Abstract translation: 使用具有高阻抗发生器的装置来实现高电压的控制,该输出连接到低曲率半径的第一构件和第二构件。 两个构件通过气隙间隔开,使得当它们之间的电压超过阈值时,可能发生通过气体的电晕放电。 这种装置在静电喷涂装置中控制电压以及因此液滴的尺寸和尺寸分布特别有用。

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