会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明授权
    • Circuit arrangement for rapidly charging a battery
    • 用于快速充电电池的电路布置
    • US4609861A
    • 1986-09-02
    • US673059
    • 1984-11-19
    • Masahiro InaniwaShun SuzukiYoichi Ogawa
    • Masahiro InaniwaShun SuzukiYoichi Ogawa
    • H02J7/10H02J7/00H02J7/04
    • H02J7/0088H02J7/0073
    • A quick battery charger according to the present invention comprises a circuit for detecting the voltage of the battery (3), a constant-current charging circuit, a constant-voltage charging circuit, and a timer circuit responsive to the voltage detecting circuit. At the beginning in charging operation, the battery is charged at a constant current, and when the voltage of the battery exceeds a predetermined value, charging mode is changed to constant-voltage charging which last for a predetermined period of time determined by the timer circuit. The charger may also comprise a trickle charge circuit so that trickle charge takes place after the constant-voltage charge. One or more heat-sensitive elements (5, 6, 69) may be used for providing temperature compensation or fail-safe in response to the heat from the battery and heat from parts of the battery charger. As a timer may be used a capacitor (50) which may be forcibly charged to insure a given period of time of the constant-voltage charging. A differential amplifier (42) may be used for detecting the voltage of the battery so that a power transistor (13) used as an element of the constant-current charging circuit is controlled in response to an output signal from the differential amplifier (42) to perform constant-voltage charging.
    • 根据本发明的快速电池充电器包括用于检测电池(3)的电压的电路,恒流充电电路,恒压充电电路和响应于电压检测电路的定时器电路。 在充电操作开始时,电池以恒定电流充电,并且当电池的电压超过预定值时,将充电模式改变为持续由定时器电路确定的预定时间段的恒定电压充电 。 充电器还可以包括涓流充电电路,使得在恒定电压充电之后发生涓流充电。 可以使用一个或多个热敏元件(5,6,69)来响应于来自电池的热量和来自电池充电器的部件的热量来提供温度补偿或故障安全。 由于可以使用可以强制充电以确保恒定电压充电的给定时间段的电容器(50)。 可以使用差分放大器(42)来检测电池的电压,使得响应于来自差分放大器(42)的输出信号来控制用作恒流充电电路的元件的功率晶体管(13) 进行恒压充电。
    • 32. 发明授权
    • Circuit arrangement for electrical tool with clutch
    • 带离合器的电动工具的电路布置
    • US4556831A
    • 1985-12-03
    • US629869
    • 1984-07-11
    • Junshin SakamotoShigeru Shinohara
    • Junshin SakamotoShigeru Shinohara
    • B25B23/157B23B45/00H02P3/12H02P29/00H02K23/68F16D23/00
    • B23B45/008H02P29/0027Y10T477/759
    • In an electrical tool having a clutch for adjusting rotational torque of the driven shaft, a limit switch of double-throw type is used for detecting the state of the clutch, and a capacitor is arranged to be charged via the limit switch. In one embodiment of the instant invention, the capacitor is normally discharged and is charged when the clutch assumes a disengaged state, thereby producing a trigger pulse used for making a short circuit for the motor only when the capacitor is not fully charged. In another embodiment, the capacitor is normally charged, and is discharged when the clutch assumes a disengaged state, thereby producing a trigger pulse used for making a short circuit for the motor. With this arrangement a switching circuit provided for making the short circuit for the motor is effectively prevented from making the short circuit when a power switch is turned on irrespective of the state of the clutch.
    • 在具有用于调节从动轴的转矩的离合器的电动工具中,使用双掷型的限位开关来检测离合器的状态,并且经由限位开关对电容器进行充电。 在本发明的一个实施例中,电容器通常被放电,并且当离合器处于分离状态时被充电,从而产生仅当电容器未完全充电时用于使电动机短路的触发脉冲。 在另一个实施例中,电容器通常被充电,并且当离合器处于分离状态时被释放,从而产生用于使马达短路的触发脉冲。 利用这种布置,无论离合器的状态如何,当电源开关接通时,有效地防止了设置用于使电动机短路的开关电路的短路。
    • 34. 发明授权
    • System for discriminating among different kinds of type carriers
    • 用于区分不同类型载体的系统
    • US4473006A
    • 1984-09-25
    • US964111
    • 1978-11-27
    • Hiroshige NakanoTsuneki KobayashiShigenobu Katagiri
    • Hiroshige NakanoTsuneki KobayashiShigenobu Katagiri
    • B41J1/20B41J7/00
    • B41J1/20
    • Systems for discriminating among a plurality of type carriers differing in number of characters and pitch of characters are disclosed. In one circuit, the type carrier is provided with synchronizing marks and discrimination marks in addition to the usual type character marks. The synchronizing mark is located at the beginning of a set of characters, and the discrimination mark is located a predetermined distance from the synchronizing mark according to the number of characters and pitch of the particular type carrier. This distance is determined by counting type character marks. In another circuit, one or more discrimination marks are provided between type character marks at the beginning of a set of characters. The number of discrimination marks indicates the number of characters of the particular type carrier. In either circuit, a counter of only a few stages and a simple decoding circuit are all that are required to carry out the discrimination operation.
    • 公开了用于区分不同字符数和字符间距的多个类型载体之间的系统。 在一个电路中,除了通常的类型字符标记之外,类型载体还具有同步标记和鉴别标记。 同步标记位于一组字符的开始处,并且鉴别标记根据特定类型载体的字符数和音调位于与同步标记预定距离。 该距离由计数类型字符标记确定。 在另一电路中,在一组字符的开始处,在类型字符标记之间提供一个或多个鉴别标记。 识别标记的数量表示特定类型载体的字符数。 在任一电路中,只有几个级的计数器和简单的解码电路都是执行鉴别操作所需要的。
    • 35. 发明授权
    • Failure detection circuit for impact printers or the like
    • 冲击式打印机等的故障检测电路
    • US4405922A
    • 1983-09-20
    • US151573
    • 1980-05-20
    • Shinichi NishinoShigenobu KatagiriKazuyuki Kubo
    • Shinichi NishinoShigenobu KatagiriKazuyuki Kubo
    • B41J1/20H04Q5/00G08B21/00
    • B41J1/20
    • In an impact printer or the like having a plurality of print-hammer drive electromagnets which are respectively connected in series with switching transistors between the terminals of a voltage source, the switching transistors are normally gated into conduction by gating signals with a duration sufficient to energize the electromagnets for operating the associated print hammers. In a test mode which occurs prior to the operation of the printer, the gating signals are successively applied to the switching transistors and the duration of each gating signal is reduced so that the gated transistor remains conductive for a short interval which is insufficient to operate the hammer. The potential at a circuit junction between the respective transistor and the associated electromagnet is coupled through a voltage divider to an input of a coincidence gate which receives its another signal from the gate electrode of the associated transistor to generate a failure indication signal when the input logic states have a predetermined relation therebetween.
    • 在具有分别与电压源的端子之间的开关晶体管串联连接的多个打印锤驱动电磁体的冲击式打印机等中,开关晶体管通常通过门控信号选通导通,其持续时间足以激励 用于操作相关打印锤的电磁铁。 在打印机操作之前发生的测试模式中,门控信号被连续地施加到开关晶体管,并且每个门控信号的持续时间被减小,使得门控晶体管保持导通的时间短,这不足以操作 锤子。 在相应的晶体管和相关联的电磁体之间的电路结处的电位通过分压器耦合到符合栅极的输入端,其接收来自相关晶体管的栅电极的另一信号,以在输入逻辑时产生故障指示信号 状态之间具有预定的关系。
    • 36. 发明授权
    • Power tool having a printed circuit board
    • 电动工具具有印刷电路板
    • US4370579A
    • 1983-01-25
    • US305778
    • 1981-09-25
    • Jyuro KobayashiMasanori ItoHiroyasu Ishikawa
    • Jyuro KobayashiMasanori ItoHiroyasu Ishikawa
    • H02K13/00B25F5/00H01R39/38H02K5/14H02K5/22H02K23/66H02K7/14
    • H02K5/225H02K23/66H02K5/148H01R12/712H01R39/38H02K2211/03
    • A power tool comprising a brush holder assembly formed of a plastic material, a printed circuit board and a positioning member for positioning the terminals of a switch and a power cable in contact with the printed circuit board. The brush holder assembly includes a pair of spaced apart arm portions each carrying a brush for making contact with the commutator and a web portion. In each of the arm portions of the assembly is embedded a pair of conductors each having a terminal at one end thereof for making electrical contact with a corresponding terminal of the stator, the other end of each conductor making contact with the printed circuit board. The printed circuit board is provided with a conductive pattern which permits the terminals of the switch and power cable to be mutually connected and further permits them to be connected to the conductors of the brush holder assembly to complete a series circuit.
    • 一种电动工具,包括由塑料材料形成的电刷架组件,印刷电路板和用于定位与印刷电路板接触的开关端子和电源电缆的定位构件。 电刷架组件包括一对间隔开的臂部分,每个臂部分带有与换向器和腹板部分接触的刷子。 在组件的每个臂部分嵌有一对导体,每个导体的一端具有端子,用于与定子的相应端子电接触,每个导体的另一端与印刷电路板接触。 印刷电路板设置有导电图案,其允许开关和电力电缆的端子相互连接,并且还允许它们连接到电刷架组件的导体以完成串联电路。
    • 40. 发明授权
    • Failure detection method and circuit for stepping motors
    • 步进电机故障检测方法及电路
    • US4300085A
    • 1981-11-10
    • US154049
    • 1980-05-28
    • Hisayoshi MonmaShigenobu Katagiri
    • Hisayoshi MonmaShigenobu Katagiri
    • H02H7/08G05B19/40
    • H02H7/0844
    • A failure detection circuit for stepping motors having a rotor and a motor control circuit including first and second transistors respectively connected in series with first and second stator coils. The rotor is set in motion in response to energization of the second stator coil when the second transistor is activated and brought to a halt in response to energization of the first stator coil when the first transistor is activated. During the interval when the first transistor is activated, the potential at a circuit junction between the respective transistor and the associated coil is detected and compared with the logic level of the input to the associated transistor to check for a set of operational states of the circuit elements to give a warning indication if the compared levels have a predetermined relationship to each other. During the interval when the rotor is at standstill, the second transistor is activated in a brief interval so that the amount of current generated in the second stator coil is insufficient to generate a torque to the rotor and in this brief interval the above comparison is made to check for another set of operational states of the circuit elements to give a warning indication if the compared levels have a predetermined relationship therebetween.
    • 一种用于具有转子的步进电机的故障检测电路和包括分别与第一和第二定子线圈串联连接的第一和第二晶体管的电动机控制电路。 当第二晶体管被激活时响应于第二定子线圈的通电而响应于第一定子线圈的激励而在第一晶体管被激活时响应于第一定子线圈的通电而停止转子。 在第一晶体管被激活的间隔期间,检测相应晶体管和相关线圈之间的电路结处的电位,并将其与输入到相关晶体管的逻辑电平进行比较,以检查电路的一组工作状态 元素,以便如果所比较的水平彼此具有预定的关系,则给出警告指示。 在转子静止的时间间隔内,第二晶体管以短暂的间隔被激活,使得在第二定子线圈中产生的电流量不足以向转子产生转矩,并且在该短暂的间隔内进行上述比较 以检查电路元件的另一组操作状态,以便如果所比较的电平之间具有预定的关系,则给出警告指示。