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    • 1. 发明专利
    • Discharge lamp lighting circuit
    • 放电灯照明电路
    • JP2012123913A
    • 2012-06-28
    • JP2010271091
    • 2010-12-06
    • Kuroi Electric Co Ltdクロイ電機株式会社
    • TAKENAKA TOSHIKAZU
    • H05B41/24
    • PROBLEM TO BE SOLVED: To provide a discharge lamp lighting circuit which prevents the efficiency from lowering when the lighting circuit has a light control function, and prevents the life of the discharge lamp from reducing.SOLUTION: The discharge lamp lighting circuit comprises an inverter circuit which generates the supply voltage of a lamp by switching the drive voltage of a discharge lamp and outputs it to the discharge lamp, a preheating capacitor connected between the filaments of the discharge lamp, a storage unit which stores the relationships of the light control level to the drive voltage of a discharge lamp and to the switching frequency, and a storage unit which stores the relationships so that the switching frequency decreases as the light control level increases, and the drive voltage of a discharge lamp when the light control level is in a full lighting state is lower than that when the light control level is in other states.
    • 要解决的问题:提供一种放电灯点亮电路,其在点灯电路具有光控功能时防止效率降低,并且防止放电灯的寿命降低。 解决方案:放电灯点亮电路包括逆变器电路,其通过切换放电灯的驱动电压并将其输出到放电灯来产生灯的电源电压,将预热电容器连接在放电灯的灯丝之间 存储单元,其存储光控制电平与放电灯的驱动电压和开关频率的关系;以及存储单元,其存储关系,使得开关频率随着光控制电平增加而减小,并且, 当光控制度处于完全点亮状态时,放电灯的驱动电压低于光控制电平处于其他状态时的驱动电压。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Discharge lamp lighting circuit
    • 放电灯照明电路
    • JP2008251377A
    • 2008-10-16
    • JP2007092006
    • 2007-03-30
    • Kuroi Electric Co Ltdクロイ電機株式会社
    • TAKENAKA TOSHIKAZU
    • H05B41/24H05B41/282
    • PROBLEM TO BE SOLVED: To provide a discharge lamp lighting circuit capable of avoiding the problem of an increase of standby power caused by a discharging circuit without particularly arranging a discharging circuit such as a resistor, and solving the problem of a residual charge by discharging a charge between input power terminals after power cutoff. SOLUTION: This discharge lamp lighting device includes capacitors C1 and C2 between input power lines, and is provided with a step-up chopper circuit 20 as a power conversion circuit converting input power and driving a discharge lamp, and an inverter circuit 21. When the cutoff state of input power is detected based on the output of an A.C. input detection circuit 11, the step-up chopper circuit 20 is operated to forcibly discharge the capacitors C1 and C2 between the input power lines, and a voltage between terminals T1-T2 is rapidly set to 0. COPYRIGHT: (C)2009,JPO&INPIT
    • 解决问题:提供一种放电灯点亮电路,其能够避免放电电路引起的待机功率增加的问题,而不需要特别设置诸如电阻器的放电电路,并且解决残留电荷的问题 通过在断电后在输入电源端子之间放电。 解决方案:该放电灯点亮装置包括输入电力线之间的电容器C1和C2,并且设置有作为转换输入电力并驱动放电灯的功率转换电路的升压斩波电路20和反相器电路21 当基于AC输入检测电路11的输出检测到输入功率的截止状态时,升压斩波电路20被操作以强制地将输入电源线之间的电容器C1和C2放电,以及端子之间的电压 T1-T2快速设定为0.版权所有(C)2009,JPO&INPIT
    • 3. 发明专利
    • Discharge lamp lighting circuit
    • 放电灯照明电路
    • JP2011159516A
    • 2011-08-18
    • JP2010020828
    • 2010-02-02
    • Kuroi Electric Co Ltdクロイ電機株式会社
    • TAKENAKA TOSHIKAZU
    • H05B41/24
    • PROBLEM TO BE SOLVED: To provide a discharge lamp lighting circuit capable of suppressing increase of a current volume flowing in each of elements composing a chopper circuit even if a value of an input power source voltage to the chopper circuit decreases and capable of preventing increase of a heating volume of each of the elements. SOLUTION: In the discharge lamp lighting circuit 1, if a value of an input power source voltage decreases to less than 100V (for example, a 90V of an effective voltage), a current volume of a tube current decreases by the decreased value of the input power source voltage. Therefore, even if the value of the input power source voltage decreases to less that 100V, the current volume of the tube current decreases by the same amount and resultantly an increase of the current volume flowing in each of the elements (a chopper switch element Tr1 or a diode D5 or the like) composing a step-up chopper circuit 20 can be suppressed. Therefore, according to the discharge lamp lighting circuit 1 of this embodiment, even if the input power source voltage decreases to less than 100V, the increase of the heating volume of each of the elements composing the step-up chopper circuit 20 can be prevented. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:为了提供一种放电灯点亮电路,即使对斩波电路的输入电源电压的值减小,也能够抑制在构成斩波电路的各元件中流动的电流体积的增加,并且能够 防止每个元件的加热量增加。 解决方案:在放电灯点亮电路1中,如果输入电源电压的值降低到小于100V(例如,有效电压的90V),则电流的电流体积减小, 输入电源电压的值。 因此,即使输入电源电压的值降低到小于100V,管电流的电流量也减少相同的量,从而导致每个元件中流过的电流体积的增加(斩波开关元件Tr1 或者二极管D5等),可以抑制升压斩波电路20。 因此,根据本实施方式的放电灯点亮电路1,即使输入电源电压降低到小于100V,也可以防止构成升压斩波电路20的各元件的发热量的增加。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Discharge lamp selecting device, and lighting device for discharge lamp
    • 放电灯选择装置和放电灯的照明装置
    • JP2010040359A
    • 2010-02-18
    • JP2008202779
    • 2008-08-06
    • Kuroi Electric Co Ltdクロイ電機株式会社
    • TAKENAKA TOSHIKAZU
    • H05B41/24
    • PROBLEM TO BE SOLVED: To enable to set a switching frequency suitable for discharge lamps of a plurality of load types, without complicating a circuit constitution, by having a constitution of receiving a selection instruction from a discharge lamp selecting device, in place of an outside operation part in a lighting adjustment part to adjust a lighting state of the discharge lamp, and by carrying out selection of the discharge lamp through software. SOLUTION: A discharge lamp selecting device has switches SW0 to SW4 for selecting the load kind of the discharge lamp FL, display elements La0 to La4 for informing the load kind of the discharge lamp, and a selection controlling means 211 of forming a selection signal corresponding to a selection content from the switch, and forming an informing signal to the display elements. The selection signal formed in the selection control means 211 via the switch is sent to a microcomputer 12 via a dimming signal input circuit 20. Meanwhile, the microcomputer 12 forms a selection confirmation signal corresponding to the selected load kind of the discharge lamp, and this signal is sent to the microcomputer 211 via the dimming signal input circuit 20. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了能够设置适合多种负载类型的放电灯的开关频率,而不会使电路结构复杂化,通过具有从放电灯选择装置接收选择指令的结构就位 的外部操作部分,以调节放电灯的点亮状态,并通过软件执行放电灯的选择。 解决方案:放电灯选择装置具有用于选择放电灯FL的负载种类的开关SW0至SW4,用于通知放电灯的负载种类的显示元件La0至La4,以及选择控制装置211, 选择信号对应于来自开关的选择内容,以及向显示元件形成通知信号。 经由开关形成在选择控制装置211中的选择信号经由调光信号输入电路20被发送到微型计算机12.同时,微型计算机12形成与所选择的放电灯的负载种类相对应的选择确认信号, 信号通过调光信号输入电路20发送到微型计算机211.版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Discharge lamp lighting circuit
    • 放电灯照明电路
    • JP2010033859A
    • 2010-02-12
    • JP2008194323
    • 2008-07-29
    • Kuroi Electric Co Ltdクロイ電機株式会社
    • TAKENAKA TOSHIKAZU
    • H05B41/24H02M7/48
    • PROBLEM TO BE SOLVED: To detect smoothed voltages at both potential sides with a simple circuit configuration to obtain detection voltages at both potential sides and a difference voltage between both the detected smoothed voltages through computational processing for more accurate determination of lifetime end stage. SOLUTION: The voltages across a discharge lamp FL are rectified to the positive and negative potentials using diodes D11 and D12. The positive potential-side rectified voltage is smoothed by a capacitor C12, and is divided by voltage divider resistors R14 and R15 to be output to an output terminal P01, while the negative potential-side rectified voltage is smoothed by a capacitor C14, and the resulting smoothed voltage is placed into a positive pole state through voltage division using voltage divider resistors R16-R18 between the smoothed voltage and the positive supply voltage ei to be output to an output terminal P02. A microcomputer 12 converts the voltage input from the output terminal P02 to correspond to a variation range of the detection voltage for the voltage from the output terminal P01. The voltage on the output terminal P01 is compared with a threshold V1, and the output from the output terminal P02, that is, the voltage after conversion, is compared with a threshold V2, while a difference between both voltages is compared with a threshold V3. If any one of the voltages exceeds the threshold, this is determined to be a lifetime end stage. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过简单的电路配置来检测两个电位侧的平滑电压,以通过计算处理获得两个电位侧的检测电压和两个检测到的平滑电压之间的差电压,以更准确地确定寿命终端 。

      解决方案:使用二极管D11和D12,放电灯FL两端的电压被整流为正和负电位。 正电位侧整流电压由电容器C12平滑化,并由分压电阻器R14和R15分压,输出到输出端子P01,负电压侧整流电压由电容器C14滤波, 通过使用分压电阻器R16-R18在平滑电压和正电源电压ei之间通过分压将所产生的平滑电压置于正极状态,以输出到输出端子P02。 微型计算机12将从输出端子P02输入的电压转换为对应于来自输出端子P01的电压的检测电压的变化范围。 将输出端子P01上的电压与阈值V1进行比较,将输出端子P02的输出即转换后的电压与阈值V2进行比较,同时将两个电压之间的差与阈值V3进行比较 。 如果任何一个电压超过阈值,则将其确定为寿命终端。 版权所有(C)2010,JPO&INPIT

    • 6. 发明专利
    • Discharge lamp lighting circuit
    • 放电灯照明电路
    • JP2008010186A
    • 2008-01-17
    • JP2006176746
    • 2006-06-27
    • Kuroi Electric Co Ltdクロイ電機株式会社
    • TAKENAKA TOSHIKAZU
    • H05B41/24H02M3/155H02M7/00
    • PROBLEM TO BE SOLVED: To solve a problem at the time of a failure when a plurality of switching elements are installed in a step-up chopper circuit, and achieve downsizing and low cost. SOLUTION: The discharge lamp lighting circuit is provided with a step-up chopper circuit 20 comprising of a choke coil L1, a capacitor C4, a diode D5, and switching elements Tr1, Tr2. By detecting deterioration of output voltage when the chopper circuit is operated with one of the switching elements out of the switching elements Tr1, Tr2 in shut-down, a failure of the switching element is detected. When any one of the switching elements is in failure, operation of the inverter circuit 21 is stopped. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了在多个开关元件安装在升压斩波电路中时解决故障时的问题,并且实现了小型化和低成本。 解决方案:放电灯点亮电路设置有包括扼流线圈L1,电容器C4,二极管D5和开关元件Tr1,Tr2的升压斩波电路20。 通过在切断元件Tr1,Tr2中断路器电路中的一个开关元件工作时检测输出电压的劣化,检测开关元件的故障。 当任一个开关元件故障时,停止逆变器电路21的动作。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Circuit board for heat radiation, circuit board body, and heat radiating plate
    • 热辐射电路板,电路板主体和热辐射板
    • JP2007150169A
    • 2007-06-14
    • JP2005345561
    • 2005-11-30
    • Kuroi Electric Co Ltdクロイ電機株式会社
    • TAKENAKA TOSHIKAZU
    • H05K1/02
    • PROBLEM TO BE SOLVED: To simplify stages of manufacturing a circuit board for heat radiation by conveying a circuit board body to a solder tank by a conveyor after an electric component requiring heat radiation is fitted and then perform solder dipping, and eliminating the need for manual soldering and the removal of solder from a hole for fitting.
      SOLUTION: The circuit board 1 for heat radiation has the circuit board body 11 and a heat radiation plate 20. The circuit board body 11 has an excess 12 extending from a side 11A to the outside of the circuit board body 11 so that the excess can be cut off from the side 11A. The heat radiation plate 20 comprises a fixed member 21 fixed to the top surface of the circuit board body 11 and a support member 22 fitted to the fixed member 21. The fixed member 21 has an extension 21E extending from the flank 11A to the outside of the circuit board body 11. The excess 12 is longer than the extension part 21E on the top surface of the circuit board body 11 in a direction orthogonal to the side 11A.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了简化制造用于散热的电路板的阶段,在安装需要散热的电气部件之后,通过输送机将电路板主体输送到焊料槽,然后进行焊料浸渍,并且消除 需要手动焊接和从孔中取出焊料进行安装。 解决方案:用于散热的电路板1具有电路板主体11和散热板20.电路板主体11具有从侧面11A延伸到电路板主体11的外部的多余的12,使得 可以从侧面11A切断多余的部分。 散热板20包括固定在电路板主体11的上表面的固定构件21和与固定构件21嵌合的支撑构件22.固定构件21具有从侧面11A延伸到外侧的延伸部21E 电路板主体11.多余的电极12在电路板主体11的上表面上延伸部分21E的长度大于与侧面11A正交的方向。 版权所有(C)2007,JPO&INPIT