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    • 1. 发明专利
    • Insulation failure diagnosis device and method for diagnosing insulation failure
    • 绝缘故障诊断装置及诊断绝缘故障的方法
    • JP2013040918A
    • 2013-02-28
    • JP2012030391
    • 2012-02-15
    • Denso Corp株式会社デンソー
    • KUDO HIROYASUTAKO MASAICHIHIRUMA ATSUYUKI
    • G01R31/02B60L1/00B60L3/00H02M1/00H02M7/48
    • B60L3/0069G01R31/025
    • PROBLEM TO BE SOLVED: To solve such a problem that, when the number of members (inverters INV1-INV4) to be connected to a high-voltage battery 10 increases, stray capacitance between the high voltage battery 10 and a vehicle body may increase or a resistance value of an insulation resistance may decrease, thereby lowering impedance caused by the stray capacitance and the insulation resistance and causing the deterioration in diagnosis accuracy of insulation failure.SOLUTION: Prior to product delivery, inverters INV1 to INV4 are connected to the high-voltage battery 10 and, after mounting them on a vehicle body, an output section 40 outputs a diagnosis signal ds. An insulation failure diagnosis device generates a determination value for determining the insulation failure on the basis of variation in potentials between the resistor 42 and a capacitor 44 and store it in a nonvolatile memory 48.
    • 要解决的问题为了解决这样一个问题,当连接到高电压电池10的部件(反相器INV1-INV4)的数量增加时,高电压电池10和车身之间的杂散电容 可能增加或者绝缘电阻的电阻值可能降低,从而降低由杂散电容和绝缘电阻引起的阻抗,并导致绝缘故障的诊断精度的劣化。

      解决方案:在产品交付之前,逆变器INV1至INV4连接到高压电池10,并且在将它们安装在车身上之后,输出部分40输出诊断信号ds。 绝缘故障诊断装置根据电阻器42和电容器44之间的电位变化来产生用于确定绝缘失效的确定值,并将其存储在非易失性存储器48中。(C)2013,JPO&INPIT

    • 2. 发明专利
    • Current measurement device
    • 电流测量装置
    • JP2006059748A
    • 2006-03-02
    • JP2004242466
    • 2004-08-23
    • Denso Corp株式会社デンソー
    • KASHIWAGI HIDEKIIMAMURA TOMONORISAKAGUCHI SHINYAKUDO HIROYASU
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To suppress power generation distribution in a fuel cell provided with a cell releasing electric energy with a simple structure.
      SOLUTION: This current measurement device is provided with a plate member 500 arranged between laminated cells and made of an insulation material, a columnar part 502 made of an electrical conducting material electrically connecting the cells at least one of which is provided in the plate member 500 and binds the plate member 500 from both sides, a current sensor 503 measuring a current flowing through the columnar part 502, a switch 505 provided in the columnar part 502 and capable of electrically switching the columnar part 502, and a control part 506 controlling switching of the switch 505 based on the measurement result of the current sensor 503. The control part suppresses the power generation distribution by switching the switch 505 into an open status when the current value measured by the current sensor 503 exceeds a prescribed threshold.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了抑制具有简单结构的释放电能的电池的燃料电池中的发电分配。 解决方案:该电流测量装置设置有布置在层压电池之间并由绝缘材料制成的板构件500,由导电材料制成的柱状部分502,该导电材料电连接至少一个电池的电池, 板构件500并且从两侧结合板构件500,测量流过柱状部502的电流的电流传感器503,设置在柱状部502中并能够电性切换柱状部502的开关505,以及控制部 506根据电流传感器503的测量结果来控制开关505的切换。当由电流传感器503测量的电流值超过规定的阈值时,控制部通过将开关505切换为断开状态来抑制发电分配。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2005190705A
    • 2005-07-14
    • JP2003427322
    • 2003-12-24
    • Denso Corp株式会社デンソー
    • SAKAGUCHI SHINYAKASHIWAGI HIDEKIKUDO HIROYASU
    • H01M8/04
    • Y02E60/50
    • PROBLEM TO BE SOLVED: To provide a fuel cell system capable of surely removing conductive ions in a cooling water passage with a simple structure.
      SOLUTION: An ion attracting part 16 having at least a positive electrode and a negative electrode is formed in the cooling water passage 11; and a current is carried to the ion attracting part 16 in operating a fuel cell 10. By disposing the ion attracting part 16 at a position separated from the fuel cell 10 as much as possible, a resistance value of the cooling water can sufficiently be increased. After the current carrying to the ion attracting part 16 is stopped, a cooling water circulation pump 12 is operated for a predetermined time and thereafter the cooling water circulation pump 12 is stopped, whereby a rustproof agent attracted to the ion attracting part 16 is dispersed into the entire cooling water in the cooling water passage 11 along with other conductive ions, so that a rustproof effect can be provided.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够以简单的结构可靠地去除冷却水通道中的导电离子的燃料电池系统。 解决方案:在冷却水通道11中形成至少具有正电极和负电极的离子吸引部分16; 并且在操作燃料电池10时将电流传送到离子吸引部16.通过将离子吸引部16设置在与燃料电池10分离的位置尽可能地,可以充分地提高冷却水的电阻值 。 在停止向离子吸引部16的流通后,冷却水循环泵12运转规定时间,然后停止冷却水循环泵12,由此吸引到离子吸引部16的防锈剂分散在 冷却水通道11中的整个冷却水以及其它导电离子,从而可以提供防锈效果。 版权所有(C)2005,JPO&NCIPI
    • 5. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2004139940A
    • 2004-05-13
    • JP2002305864
    • 2002-10-21
    • Denso Corp株式会社デンソー
    • KUDO HIROYASUSAITO TOMOHIROKAWAI TOSHIYUKI
    • H01M8/02H01M8/00H01M8/04
    • Y02E60/50
    • PROBLEM TO BE SOLVED: To shorten the startup time of a fuel cell system which starts up the fuel cell by heating a part inside the fuel cell in a low-temperature environment to allow power generation at the part, and then by transferring reaction heat associated with the power generation at the part to another part to thereby warm up the inside of the fuel cell.
      SOLUTION: A metal paste 8 or the like is applied or attached to a region 41b other than a part 41a of a surface of a separator 2 having low thermal conductivity, the surface being closer to an electrolyte membrane and electrodes. This allows the time taken until power generation in heating the part 41a of the separator 2 to remain unchanged and allows faster diffusion of the reaction heat to the other part 41b, as compared with a fuel cell which uses a separator having low thermal conductivity. It is thereby possible to shorten the startup time of the fuel cell.
      COPYRIGHT: (C)2004,JPO
    • 解决的问题:为了缩短通过在低温环境下加热燃料电池内的部分来启动燃料电池的燃料电池系统的启动时间,以允许在该部分发电,然后通过转移 与部分发电到另一部分相关联的反应热,从而使燃料电池的内部温热。 解决方案:将金属浆料8等施加或附着到具有低热导率的隔板2的表面的部分41a以外的区域41b,该表面更靠近电解质膜和电极。 与使用具有低导热率的隔板的燃料电池相比,这允许在加热隔板2的部分41a的发电时保持不变并且允许反应热更快地扩散到另一部分41b所花费的时间。 由此,能够缩短燃料电池的起动时间。 版权所有(C)2004,JPO
    • 6. 发明专利
    • Power converter
    • 电源转换器
    • JP2013027282A
    • 2013-02-04
    • JP2011163168
    • 2011-07-26
    • Denso Corp株式会社デンソー
    • KUDO HIROYASUTAKO MASAICHIHIRUMA ATSUYUKI
    • H02M7/48
    • PROBLEM TO BE SOLVED: To solve such a problem that since the physique of a capacitor being connected with the input terminals of inverters INV1, INV2, INV3 for connection with an on-vehicle auxiliary machine is large, the case on which the inverters INV1, INV2, INV3 are mounted is likely to be enlarged.SOLUTION: A power supply device PSC including a smoothing capacitor 18, and a normal mode choke coil 16 is shared by inverters INV1, INV2, INV3, and mounted on a substrate 40 for power supply different from substrates 42, 44, 46 for conversion on which the inverters INV1, INV2, INV3 are formed, respectively. A step-down converter 30, a photocoupler 21, and the like, are mounted additionally on the substrate 40 for power supply.
    • 解决的问题为了解决这样一个问题,由于与车载辅助设备连接的变换器INV1,INV2,INV3的输入端子连接的电容器的体积大,因此, 反相器INV1,INV2,INV3的安装容易扩大。 解决方案:包括平滑电容器18和正常模式扼流线圈16的电源装置PSC由反相器INV1,INV2,INV3共用,并且安装在用于与基板42,44,46不同的电源的基板40上 分别形成有反相器INV1,INV2,INV3的转换。 降压转换器30,光电耦合器21等附加地安装在用于供电的基板40上。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Vehicle air-conditioner
    • 车用空气调节器
    • JP2012188001A
    • 2012-10-04
    • JP2011052842
    • 2011-03-10
    • Denso Corp株式会社デンソー
    • YAMADA KOICHIKUDO HIROYASU
    • B60H1/00B60H1/32
    • PROBLEM TO BE SOLVED: To reduce abnormal noise to be generated when a fan is started, in an air-conditioner including a brushless or sensor-less motor for the fan.SOLUTION: In a vehicle air-conditioner, a blower motor for driving a fan built in a blower unit of a vehicle automatic air-conditioner to be drive-controlled by an automatic air-conditioner ECU is constituted of a sensor-less AC motor. The automatic air-conditioner ECU detects the position of the inside/outside air switching damper when the fan in a running vehicle is started, drives a damper motor to move an inside/outside air switching damper to the predetermined position close to an outside air inlet from an inside air inlet, for example, the outside air inlet closing position, and starts the blower motor after moving the inside/outside air switching damper to the predetermined position.
    • 要解决的问题:为了减少风扇启动时产生的异常噪音,在包括用于风扇的无刷或无传感器电动机的空调中。 解决方案:在车辆空调器中,用于驱动内置在由自动空调ECU驱动控制的车辆自动空调机的鼓风机单元中的风扇的鼓风机电机由无传感器 交流电机。 当行驶车辆中的风扇开始时,自动空调ECU检测内/外空气切换风门的位置,驱动阻尼电机将内外空气切换风门移动到靠近外部空气入口的规定位置 从内部空气入口,例如外部空气入口关闭位置,并且在将内部/外部空气切换阻尼器移动到预定位置之后启动鼓风机马达。 版权所有(C)2013,JPO&INPIT
    • 9. 发明专利
    • Four-phase rotary electric machine
    • 四相旋转电机
    • JP2008228432A
    • 2008-09-25
    • JP2007062143
    • 2007-03-12
    • Denso Corp株式会社デンソー
    • KUDO HIROYASUNASHIKI MASAYUKITANAKA NAOKI
    • H02K1/06H02K3/18H02K21/14
    • PROBLEM TO BE SOLVED: To provide a four-phase rotary electric machine wherein stator coil copper loss can be further reduced than in conventional four-phase rotary electric machines.
      SOLUTION: A four-phase, four-pole stator 1 has four magnetic pole portions A to D per an electric angle of 2π. Magnetic pole portions A and C away from each other by an electric angle of π and magnetic pole portions B and D away from each other by an electric angle of π are shifted in the axial direction and disposed. The magnetic pole portions A and C and the magnetic pole portions B and D are shifted by an electric angle of π/2 in the circumferential direction and disposed. This makes it possible to ensure a large area for coils and reduce copper loss. As a result, it is possible to suppress reduction in output and significantly reduce temperature rise in stator coils 12 and thus reduce the size of and enhance the output of the rotary electric machine.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种与传统的四相旋转电机相比可以进一步降低定子线圈铜损的四相旋转电机。 解决方案:四相四极定子1的电角度为2π时具有四个磁极部分A至D。 磁极部分A和C彼此以π的角度彼此离开并且电磁角度为π的磁极部分B和D彼此偏离轴向并被设置。 磁极部分A和C以及磁极部分B和D沿圆周方向移动π/ 2的电角度并被设置。 这样可以确保大面积的线圈并减少铜损。 结果,能够抑制定子线圈12的输出的降低,显着降低定子线圈12的温度上升,从而减小旋转电机的输出。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2007134154A
    • 2007-05-31
    • JP2005325751
    • 2005-11-10
    • Denso Corp株式会社デンソー
    • SAKAGUCHI SHINYAKUDO HIROYASU
    • H01M8/04H01M8/06H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell system capable of expeditiously discharging moisture in an equipment arranged on a downstream side of a fuel cell during operation shutdown of the fuel cell.
      SOLUTION: In the fuel cell system, a bypass piping 18 is installed in which one end is connected to more upstream side part of an air flow than the fuel cell 1 and a humidifier 11 in the piping 3 for air supply, and in which the other end 18b is on further downstream side of the fuel cell 1 in the piping 4 for air discharge, and connected to the upstream side part of a gas-liquid separator 16 and a muffler 17. At this time, for example, one end 18a of the bypass piping 18 is connected to the piping 3 for air supply via a three-way valve 19. Then, in stopping operation of the fuel cell 1, the three-way valve 19 is actuated and air sent out from an air pump 2 is made to flow into the bypass piping 18.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种燃料电池系统,其能够在燃料电池的运行关闭期间在设置在燃料电池的下游侧的设备中快速排出水分。 解决方案:在燃料电池系统中,安装旁通管道18,其中一端连接到比燃料电池1的空气流的更多上游侧部分和用于供气的管道3中的加湿器11, 其中另一端18b位于用于排气的管道4中的燃料电池1的更下游侧,并且连接到气液分离器16和消声器17的上游侧部分。此时,例如, 旁通管道18的一端18a经由三通阀19连接到用于供气的配管3.然后,在燃料电池1的停止运转中,三通阀19被致动,空气从一个 空气泵2流入旁通管道18.版权所有(C)2007,JPO&INPIT