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1. 发明专利

JP2011205866A Power supply circuit, and power supply apparatus 审中-公开
标题翻译：电源电路和电源设备
公开(公告)号：JP2011205866A
公开(公告)日：2011-10-13
申请号：JP2010073485
申请日：2010-03-26
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： KONO SACHIKAZU , TAKANO NOBUHIRO , NAKAYAMA EIJI , FUNABASHI KAZUHIKO
IPC分类号： H02J7/00 , B25F5/00 , H01M10/44 , H02J1/10 , H02M3/155
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To provide a power supply circuit and a power supply apparatus which ensure a longer time period of use of a power-operated working machine when power from a battery is supplied as ac power to the power-operated working machine.SOLUTION: The power supply circuit includes a plurality of connection sections which are connected respectively to a plurality of batteries, a booster which raises a voltage output from at least any one of the plurality of batteries, a converting unit which converts the voltage raised by the booster into an ac voltage, an output unit which outputs the ac voltage converted by the converting unit to a power-operated working machine, and one or more of backflow preventing unit which prevent the backflow of current caused by a difference between output voltages between the batteries connected respectively to the connection sections.
摘要翻译：要解决的问题：提供一种电源电路和电源装置，其确保当从电池供电的电力作为交流电力向动力作业机提供动力作业机的使用时间更长的时间。解决方案电源电路包括分别与多个电池连接的多个连接部，提升从多个电池中的至少任意一个电池输出的电压的升压器，转换单元，其转换由升压器提升的电压将由转换单元转换的交流电压输出到电动工作机的输出单元，以及防止由电池之间的输出电压之差引起的电流回流的一个或多个逆流防止单元分别连接到连接部分。

2. 发明专利

JP2011067004A Battery pack and power tool 有权
标题翻译：电池组和电动工具
公开(公告)号：JP2011067004A
公开(公告)日：2011-03-31
申请号：JP2009215124
申请日：2009-09-17
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： KONO SACHIKAZU , TAKANO NOBUHIRO , NAKAYAMA EIJI , ISHIMARU TAKERO , FUJISAWA HARUHISA , SAITO KEITA
IPC分类号： H02J7/00 , H01M10/44
CPC分类号： H01M10/482 , B25B21/00 , H01M10/052 , H01M10/425 , H01M10/486
摘要： PROBLEM TO BE SOLVED: To provide a battery pack installed in a power tool body whose battery voltage specifications differs from those of the battery pack.
SOLUTION: The battery pack 101 is provided with an assembled battery 130, which is formed of lithium ion batteries and can supply power to the power tool body 201 as a load; a switching element 124 connected to the assembled battery 130 in series; and a microcomputer 126 controlling a switching operation of the switching element 124. The microcomputer obtains voltage specification information 204, showing usable voltage of the power tool body from the power tool body 201 and sets the switching operation, according to the information. Thus, the microcomputer adjusts the average output voltage of the battery pack 101 to the voltage specifications of the power tool body 201.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供安装在电池工具主体中的电池组，其电池电压规格与电池组的电压指标不同。解决方案：电池组101设置有由锂离子电池形成的组合电池130，并且可以作为负载向电动工具主体201供电; 串联连接到组电池130的开关元件124; 以及控制开关元件124的切换动作的微计算机126.微型计算机从电动工具主体201获取表示电动工具主体的使用电压的电压指定信息204，根据该信息设定切换动作。因此，微型计算机将电池组101的平均输出电压调整为电动工具主体201的电压规格。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2010124700A Engine working machine 有权
标题翻译：发动机工作机
公开(公告)号：JP2010124700A
公开(公告)日：2010-06-10
申请号：JP2008299317
申请日：2008-11-25
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： NAKAYAMA EIJI , OTSU SHINKI , KAMIMURA JUNICHI , SUNAOSHI MITSUHIRO
IPC分类号： A01D34/76 , A01D34/68 , A01D34/78
摘要： PROBLEM TO BE SOLVED: To provide an engine working machine that suppresses abrasion and heat generation of brake, has a long life and automatically brakes.
SOLUTION: The engine working machine includes: a centrifugal clutch for connecting and disconnecting a drive power between an output shaft of engine and a driven shaft equipped with a device according to the number of revolutions of the output shaft of the circle; an engine control switch 5 for controlling the drive state of the engine; an electromagnetic brake 11 for stopping the drive of the device; a clutch condition discrimination means 32 for discriminating whether the centrifugal clutch is changed from a connected state to a disconnected state on the basis of the output of the engine control switch 5; and a controller 7 for driving a brake means when the centrifugal clutch is discriminated to be changed from the connected state to the disconnected state on the basis of the output of the clutch condition discrimination means 32.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供抑制制动器的磨损和发热的发动机工作机械，具有长的使用寿命并自动制动。发动机工作机械包括：离心式离合器，用于连接和断开发动机的输出轴与配备有装置的从动轴之间的驱动力，该驱动轴根据圆的输出轴的转数; 用于控制发动机的驱动状态的发动机控制开关5; 用于停止装置的驱动的电磁制动器11; 用于基于发动机控制开关5的输出来判断离心式离合器是否从连接状态变为断开状态的离合器条件判别装置32; 根据离合器条件判别机构32的输出，当离心式离合器被鉴别为从连接状态变为断开状态时，驱动制动装置的控制器7.（C）2010， JPO＆INPIT

4. 发明专利

JP2009202310A Power tool 审中-公开
标题翻译：电动工具
公开(公告)号：JP2009202310A
公开(公告)日：2009-09-10
申请号：JP2008049019
申请日：2008-02-29
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： NAKAYAMA EIJI , ONOSE AKIRA
IPC分类号： B25F5/00 , B23B45/00 , B25B21/00
摘要： PROBLEM TO BE SOLVED: To provide a power tool having a control circuit device for modulating power to be supplied to a DC motor by an operating lever (trigger lever), preventing abnormal power modulation (duty control) by wear of a sliding resistance part of a slidable variable resistor to be used in a speed setting circuit, and always carrying out normal power modulation to the operating amount of the operating lever even when wear of the sliding resistance part is caused.
SOLUTION: When a power supply switch 3 of a control circuit 2 is turned on by operation of the operating lever 19, a detected voltage (divided voltage) Vb of a slide terminal 12b of the slidable variable resistor 12 is received to the control circuit 2 simultaneously, and the detected voltage Vb is compared with a normal value Vi. By correcting duty of PWM control based on the comparison result, the control circuit 2 operates so as to always carry out normal power modulation to the operating amount of the operating lever even when the wear is caused at the sliding resistance part of the slidable variable resistor 12.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有控制电路装置的电动工具，用于通过操作杆（触发杆）调节供给直流电动机的动力，通过滑动磨损防止异常功率调制（占空比控制）用于速度设定电路的可滑动可变电阻器的电阻部分，并且即使在产生滑动阻力部件的磨损时，也始终对操作杆的操作量执行正常的功率调制。解决方案：当通过操作杆19的操作使控制电路2的电源开关3接通时，可滑动可变电阻器12的滑动端子12b的检测电压（分压）Vb被接收到控制电路2同时检测电压Vb与正常值Vi进行比较。通过根据比较结果校正PWM控制的占空比，控制电路2进行运行，以便即使当在可滑动可变电阻器的滑动阻力部分产生磨损时，也始终对操作杆的操作量执行正常的功率调制 12.版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2009090419A Power tool 有权
标题翻译：电动工具
公开(公告)号：JP2009090419A
公开(公告)日：2009-04-30
申请号：JP2007264106
申请日：2007-10-10
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： FUNABASHI KAZUHIKO , TAKANO NOBUHIRO , NAKAYAMA EIJI , UEDA TAKASHI
IPC分类号： B25F5/00 , G01R31/36 , H01M10/48 , H02J7/00
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To provide a power tool capable of lessening the number of components and accurately detecting a discharge voltage limit value and having a remained power quantity warning circuit of a battery pack. SOLUTION: The remained power quantity warning circuit 6 comprises a cathode terminal K connected with a positive electrode side power source supply track NP via a current limiting resistance 63, an anode terminal A connected with a negative electrode side power source supply track LN, and a shunt regulator 64 having a reference terminal RE for applying detection voltage Vd partially divided by a pair of partial voltage detecting resistances 60, 61 connected in series between a pair of power source supply tracks NP and LN. The remained power quantity warning circuit 6 supplies output voltage Vk of the cathode terminal K of the shunt regulator 64 to a control input terminal of an output switching element 72 via a level shift element (voltage conversion element) 65. When a trigger switch 4a is turned on, changes of the output voltage Vk of the cathode terminal K obtained in the shunt regulator 64 are detected by the output switching element 72 via the level shift element 65. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够减少部件数量并精确地检测放电电压限制值并具有电池组的剩余电量警告电路的电动工具。解决方案：剩余电量警告电路6包括通过限流电阻63与正电极侧电源供应磁道NP连接的阴极端子K，与负极侧电源供应磁道LN连接的阳极端子A 以及分路调节器64，其具有用于施加部分被由一对电源供给轨道NP和LN串联连接的一对部分电压检测电阻60,61的检测电压Vd的参考端子RE。剩余电量警告电路6经由电平移位元件（电压转换元件）65将分流调节器64的阴极端子K的输出电压Vk提供给输出开关元件72的控制输入端。当触发开关4a为在分流调节器64中获得的阴极端子K的输出电压Vk的变化通过电平移位元件65由输出开关元件72检测。（C）2009，JPO＆INPIT

6. 发明专利

JP2009060683A Charger 审中-公开
标题翻译：充电器
公开(公告)号：JP2009060683A
公开(公告)日：2009-03-19
申请号：JP2007223323
申请日：2007-08-30
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： KONO SACHIKAZU , TAKANO NOBUHIRO , NAKAYAMA EIJI , FUJISAWA HARUHISA , SAITO KEITA
IPC分类号： H02J7/02 , H01M10/44 , H02J7/00 , H02M3/155
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To solve the problem, wherein when the output voltage of a direct-current power source, such as an AC adaptor or a car battery, connected to a charger body gets out of an allowable voltage range within which the charger body can operate normally, a fault or abnormal charging operation is caused in the charger and this can lead to damages to the direct-current power source itself due to abnormal charging.
SOLUTION: The charger includes: supply voltage detecting means 142 and 143, that detect that the input voltage Vin of a direct-current power source 200 supplied to an input terminal 131 is equal to or lower than the lower limit value of or equal to or higher than the upper limit value of an allowable voltage range, within which a charging power supply circuit portion 146 can normally operate; and a power supply interrupting means 141 that stops the charging operation of the charging power supply circuit portion 146, based on the detection signal from the supply voltage detecting means 142 and 143. When the supply voltage detecting means 142 and 143 detect a voltage equal to or lower than the lower limit value of or equal to or higher than the upper limit value of the input voltage Vin of the direct-current power source 200, the power supply interrupting means 141 makes the charging operation of the charging power supply circuit portion 146 stop.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题为了解决这样的问题，当与充电器主体连接的诸如AC适配器或汽车电池的直流电源的输出电压超出其允许电压范围时，其中充电器主体可以正常工作，在充电器中引起故障或异常充电操作，这可能导致由于异常充电而导致的直流电源本身的损坏。
解决方案：充电器包括：电源电压检测装置142和143，其检测提供给输入端子131的直流电源200的输入电压Vin等于或低于下限值等于或高于充电电源电路部分146可正常工作的容许电压范围的上限值; 以及基于来自电源电压检测装置142和143的检测信号来停止充电电源电路部分146的充电操作的电源中断装置141.当电源电压检测装置142和143检测到等于或低于直流电源200的输入电压Vin的上限值以下的下限值时，电源中断单元141使充电电源电路部146的充电动作停止。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008178278A Adaptor, assembly of battery pack and adaptor, and electric tool with the same 有权
标题翻译：适配器，电池组和适配器组装，以及电动工具
公开(公告)号：JP2008178278A
公开(公告)日：2008-07-31
申请号：JP2007029701
申请日：2007-02-08
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： TAKANO NOBUHIRO , KONUMA YUICHI , FUTAYADA MASATERU , KONO SACHIKAZU , FUNABASHI KAZUHIKO , YOSHIMIZU TOMOUMI , NAKAYAMA EIJI , ISHIMARU TAKERO
IPC分类号： H02J7/00 , H01M10/44 , H02K11/00 , H02M3/155
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To provide an adaptor in which the voltage of a battery pack is converted to enable safe use of an electric tool and efficiently, an assembly of the battery pack of the adaptor, and the electric tool with the same. SOLUTION: When the battery pack 100 having an output voltage of 14.4 V that is connectable to the electric tool in a sliding manner is used as a power supply source for the electric tool 200 that is connectable to the battery pack in an insertion manner and has a rated voltage of 12 V, the electric tool and the battery pack are connected to each other via the adaptor 1. The adaptor 1 has an FET 31 that is switched at a desired duty of a predetermined frequency. The battery pack 100 and the electric tool 200 are connected or disconnected to or from each other by the switching operation, thereby dropping the output voltage of the battery pack 100. For example, by switching the FET 31 by a pulse signal having 83% duty, the power supply source for the battery pack 100 of 14.4 V is dropped to 12 V by the adaptor 1 prior to output to the electric tool 200. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种适配器，其中转换电池组的电压以使得能够安全地使用电动工具并且有效地将适配器的电池组和具有该电动工具的电动工具组装在一起。解决方案：当具有以滑动方式连接到电动工具的14.4V的输出电压的电池组100被用作用于可插入电池组的电动工具200的电源时并且具有12V的额定电压，电动工具和电池组通过适配器1彼此连接。适配器1具有以期望的预定频率的占空比切换的FET31。电池组100和电动工具200通过开关操作彼此连接或断开，从而降低电池组100的输出电压。例如，通过用具有83％占空比的脉冲信号切换FET31 ，在输出到电动工具200之前，适配器1将14.4V的电池组100的电源降至12V。（C）2008，JPO＆INPIT

8. 发明专利

JP2006205324A Tool storage case 审中-公开
标题翻译：工具存储箱
公开(公告)号：JP2006205324A
公开(公告)日：2006-08-10
申请号：JP2005022391
申请日：2005-01-31
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： YOSHIMIZU TOMOUMI , NAKAYAMA EIJI , HANAWA HIROYUKI , TAKANO NOBUHIRO
IPC分类号： B25H3/02
CPC分类号： B25H3/006
摘要： PROBLEM TO BE SOLVED: To provide an electric equipment-incorporated tool storage case, easy in carrying together with the other electric equipment such as a voice device except for a tool body, and endurable against pollution such as dust of a work site. SOLUTION: When the voice device is particularly incorporated as the electric equipment, the tool storage case 120 is used as an enclosure of a pair of loudspeakers 20 and 21, and a sound path space of the pair of loudspeakers is separated by partition walls 122 and 124 for partitioning storage parts 135 and 136 in the tool storage case 120. A power source switching circuit 102 of an AC/DC converter power source 101 or a battery DC power source 5 is constituted in the tool storage case 1, and power wiring or mutual wiring 28 of the electric equipment such as the voice device 16 is applied along the partition walls 122 and 124 in the tool storage case 1, and the electric equipment such as the voice device 16 and a battery charger 4 is operated in a state of closing a storage side case 1 and a cover side case 2. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种装有电子设备的工具存放盒，易于与诸如工具主体之类的语音装置的其他电气设备一起携带，并且能够忍受诸如工地的灰尘等污染。解决方案：当语音设备特别地作为电气设备并入时，工具存储盒120被用作一对扬声器20和21的外壳，并且该对扬声器的声音空间被分隔开用于分割工具存储盒120中的存储部件135和136的壁122和124.在工具存储盒1中构成AC / DC转换器电源101或电池DC电源5的电源切换电路102，诸如语音设备16的电气设备的电力布线或互连布线28沿着工具存放盒1中的分隔壁122和124施加，并且诸如语音设备16和电池充电器4的电气设备在关闭存储侧壳体1和盖侧壳体2的状态。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2004350498A Direct-current power supply with charging function 审中-公开
公开(公告)号：JP2004350498A
公开(公告)日：2004-12-09
申请号：JP2004217664
申请日：2004-07-26
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： SHINOHARA SHIGERU , NAKAYAMA EIJI , NAKAGAWA JUNJI
IPC分类号： H02J7/00 , H02J7/10 , H02M3/00
摘要： PROBLEM TO BE SOLVED: To drive a cordless tool and charge a storage battery without increase in the weight or volume of a direct-current power supply itself and without increase in the number of cables of an adaptor attachable and detachable to and from the cordless tool.
SOLUTION: Driving of a cordless tool 4, that is, turn-on of a power switch 42 is detected according to the direct-current power supply itself 1. When the cordless tool 4 is driven, charging is not carried out. When the cordless tool 4 is at a stop, the storage battery 5 is charged.
COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2011161545A Power tool 有权
标题翻译：电动工具
公开(公告)号：JP2011161545A
公开(公告)日：2011-08-25
申请号：JP2010025106
申请日：2010-02-08
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： KONO SACHIKAZU , TAKANO NOBUHIRO , NAKAYAMA EIJI , FUJISAWA HARUHISA , SAITO KEITA
IPC分类号： B25F5/00
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive cordless power tool with excellent safety and long service life. SOLUTION: This small power tool has a lithium ion battery of one cell as a power source. The power tool detects overdischarge/overcurrent and controls current flowing in a motor to be shut off by turning OFF a switching element when detecting the overdischarge/overcurrent. The switching element is driven by voltage obtained by boosting battery voltage to stably monitor and protect overdischarge/overcurrent, even in a state in which battery voltage is low. Whether or not the battery voltage is boosted is determined based on the voltage impressed on the motor. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种廉价的无绳电动工具，安全性和使用寿命长。
解决方案：该小型电动工具具有一个电池的锂离子电池作为电源。电动工具检测过放电/过电流，并检测过放电/过电流时，通过关断开关元件来控制电机中流过的电流，以关断电流。开关元件由电池电压升高所得到的电压驱动，即使在电池电压低的状态下也能够稳定地监视和保护过放电/过电流。基于施加在电动机上的电压来确定电池电压是否升压。版权所有（C）2011，JPO＆INPIT

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