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    • 3. 发明申请
    • Method and Non-Transitory Computer Readable Medium Thereof for Thermal Analysis Modeling
    • 方法和非瞬态计算机可读介质的热分析建模
    • US20120323539A1
    • 2012-12-20
    • US13204945
    • 2011-08-08
    • Chien-Chang ChenYu-Ting Cheng
    • Chien-Chang ChenYu-Ting Cheng
    • G06F17/50G06F17/16
    • G06F17/5036G06F2217/80
    • A method and a non-transitory computer readable medium thereof for thermal analysis modeling are provided. The method includes establishing an electrothermal network π model on the basis of electronic modules of an electronic system to define a heat source, propagation paths and a common base of the electronic system. Observation points in the electronic system are defined, in which each observation point is located at an isothermal surface enclosing a volume surrounding a reference point, and where the reference point is the heat source or one observation point. A heat conduction temperature difference and a heat convection temperature difference are calculated according to a power density function, a thermal conductivity coefficient and a distance vector between the reference point and each observation point. A temperature distribution is established according to the heat conduction and the heat convection temperature difference and a defined temperature of the common base.
    • 提供了一种用于热分析建模的方法和非暂时计算机可读介质。 该方法包括建立电热网络 模型基于电子系统的电子模块来定义电子系统的热源,传播路径和公共基座。 定义电子系统中的观测点,其中每个观察点位于包围参考点的体积的等温表面,并且其中参考点是热源或一个观察点。 根据功率密度函数,导热系数和参考点与每个观察点之间的距离矢量计算导热温差和热对流温差。 根据热传导和热对流温差以及公共基底的定义温度建立温度分布。
    • 4. 发明申请
    • TILT-PREVENTING FAN
    • 倾斜风扇
    • US20110280753A1
    • 2011-11-17
    • US12778970
    • 2010-05-12
    • CHIEN-CHANG CHEN
    • CHIEN-CHANG CHEN
    • F04B17/00
    • F04D25/062F04D29/668
    • The present invention provides a tilt-preventing fan having a blade device, a motor, a magnet device, a frame and a ball bearing. The blade device has a blade shaft. The blade shaft has an outer surface and a ring attached the outer surface. The motor is mounted around the blade shaft. The magnet device is mounted around the motor. The frame has a receiving device mounted in the central hole of the motor from the second opening and has an inner flange positioned around the blade shaft. The receiving device has a base, a resilient member and an abrasion-resistant pad abutting the blade shaft. The resilient member is mounted between the base and the abrasion-resistant pad. The ball bearing is mounted between the ring and inner flange. The ball bearing is firmly held between the ring and inner flange and capable of preventing the blade shaft from tilting.
    • 本发明提供一种具有刀片装置,电动机,磁铁装置,框架和滚珠轴承的防倾斜风扇。 刀片装置具有刀片轴。 叶片轴具有外表面和附接到外表面的环。 电机安装在刀片轴的周围。 磁铁装置安装在电机周围。 框架具有从第二开口安装在电动机的中心孔中的接收装置,并且具有围绕叶片轴定位的内凸缘。 接收装置具有底座,弹性构件和抵靠叶片轴的耐磨垫。 弹性构件安装在基座和耐磨垫之间。 滚珠轴承安装在环和内凸缘之间。 球轴承牢固地保持在环和内凸缘之间,并且能够防止叶片轴倾斜。
    • 6. 发明申请
    • A Method For Predicting Inductance And Self-Resonant Frequency Of A Spiral Inductor
    • 一种用于预测螺旋电感的电感和自谐振频率的方法
    • US20070214442A1
    • 2007-09-13
    • US11435710
    • 2006-05-18
    • Chien-Chang ChenYu-Ting Cheng
    • Chien-Chang ChenYu-Ting Cheng
    • G06F17/50
    • G06F17/5036G06F17/5063
    • In this invention, a closed-form integral model for on-chip freely suspended rectangular spiral inductor is presented. The model of this invention bases on the Kramers-Kronig relations, field theory, and solid state physics to characterize a spiral inductor which RFIC designers could easily have the optimal design utilizing this analytical method. Meanwhile, this model can provide satisfactory prediction to the inductance and self-resonant frequency of the spiral inductor without complicated geometry analysis. Furthermore, unlike conventional formulations only based on circuit parameters, this model could safely predict the inductance and the self-resonant frequency when altering the material (excluding ferromagnetic materials) of a spiral inductor.
    • 在本发明中,提出了一种用于片上自由悬挂的矩形螺旋电感器的封闭形式的积分模型。 本发明的模型基于Kramers-Kronig关系,场理论和固态物理学,以表征螺旋电感器,RFIC设计人员可以利用该分析方法轻松实现最佳设计。 同时,该模型可以对螺旋电感器的电感和自谐振频率提供令人满意的预测,而无需复杂的几何分析。 此外,与传统的仅基于电路参数的配方不同,当改变螺旋电感器的材料(不包括铁磁材料)时,该模型可以安全地预测电感和自谐振频率。
    • 7. 发明授权
    • Method and non-transitory computer readable medium thereof for thermal analysis modeling
    • 用于热分析建模的方法和非暂时计算机可读介质
    • US08543361B2
    • 2013-09-24
    • US13204945
    • 2011-08-08
    • Chien-Chang ChenYu-Ting Cheng
    • Chien-Chang ChenYu-Ting Cheng
    • G06G7/56
    • G06F17/5036G06F2217/80
    • A method and a non-transitory computer readable medium thereof for thermal analysis modeling are provided. The method includes establishing an electrothermal network π model on the basis of electronic modules of an electronic system to define a heat source, propagation paths and a common base of the electronic system. Observation points in the electronic system are defined, in which each observation point is located at an isothermal surface enclosing a volume surrounding a reference point, and where the reference point is the heat source or one observation point. A heat conduction temperature difference and a heat convection temperature difference are calculated according to a power density function, a thermal conductivity coefficient and a distance vector between the reference point and each observation point. A temperature distribution is established according to the heat conduction and the heat convection temperature difference and a defined temperature of the common base.
    • 提供了一种用于热分析建模的方法和非暂时计算机可读介质。 该方法包括基于电子系统的电子模块建立电热网络pi模型,以定义电子系统的热源,传播路径和公共基座。 定义电子系统中的观测点,其中每个观测点位于包围参考点周围的体积的等温表面,并且其中参考点是热源或一个观察点。 根据功率密度函数,导热系数和参考点与每个观察点之间的距离矢量计算导热温差和热对流温差。 根据热传导和热对流温差以及公共基底的定义温度建立温度分布。
    • 10. 发明授权
    • Fin assembly for an integrated circuit
    • 集成电路的翅片组件
    • US5287249A
    • 1994-02-15
    • US88845
    • 1993-07-07
    • Chien-Chang Chen
    • Chien-Chang Chen
    • H01L23/467H05H7/20
    • H01L23/467H01L2924/0002
    • A fin assembly includes a fin, a pair of mounting pieces for removably mounting the fin to an integrated circuit. The fin includes a bottom surface for contacting an upper surface of the integrated circuit and an upper surface from which a plurality of ridges extend. An extension extends downward from each side of the bottom surface, such that the distance between the two extensions is equal to the width of the integrated circuit. On at least one of the mutually facing walls of each outermost ridge and its corresponding adjacent ridge, a groove extends along the length of each ridge. Each mounting piece includes a base and two beveled sides each extending downward to form a distal snapping end. A pair of pins extend upward from a top of the base, such that a fan may be mounted by passing the pins through pin holes in the corners of the fan. A plurality of protuberances projects from each of two lateral sides of the base, such that when the base of the mounting piece is inserted into the channel defined by each outermost ridge and its corresponding adjacent ridge, the protuberances are fittingly received in the grooves in the ridges, thereby retaining the mounting piece. Preferably, the snapping end extends in a direction parallel to the extending direction of an end surface of the protrusion which projects outward from each corner of the integrated circuit to provide a surface contact therebetween.
    • 翅片组件包括翅片,用于将翅片可拆卸地安装到集成电路的一对安装件。 翅片包括用于接触集成电路的上表面的底表面和多个脊延伸的上表面。 延伸部从底表面的每一侧向下延伸,使得两个延伸部之间的距离等于集成电路的宽度。 在每个最外脊的相互面对的壁中的至少一个和其相应的相邻的脊上,凹槽沿着每个脊的长度延伸。 每个安装件包括底座和两个倾斜的边,每个向下延伸以形成远端卡扣端。 一对销从基座的顶部向上延伸,使得可以通过使销穿过风扇角部的销孔来安装风扇。 多个突起从基座的两个侧面中的每一个突出,使得当安装件的基座插入由每个最外侧的脊及其相应的相邻的脊限定的通道中时,突起被适配地容纳在凹槽中 从而保持安装件。 优选地,卡扣端在平行于突起的端面的延伸方向的方向上延伸,该突出的端表面从集成电路的每个角落向外突出,以在它们之间提供表面接触。