Industrial Technology Research Institute

Sunonwealth Electric Machine Industry Co., Ltd.

Min-Der Wu

Shyh-Jier Wang

Wan-Wen Chiu

Hsu-Pin Pan

Yin-Rong Hong

Der-Ray Huang

Alex Hong

Hung-Kuang Hsu

Yang-Guang Liu

Chun-Min Chen

Tai-Fa Ying

Chin-Po Liao

Chi-Mou Zhao

Yau-Bin Yang

Chih-Hsuan Yang

Chiang Cheng Huang

Meng-Yen Tsai

Han Chung Wang

Eric-G Lean

Min-Ju Lin

Wei-Da Tu

Yea-Jiun Liou

The present disclosure discloses a controlling device and method for a Heating Ventilation and Air Conditioning system. The controlling device includes a building heat load module, a data collecting module, an optimization module, and a controller. A building heat load model is established according to building envelope data. Field information data and setup data are collected. The building heat load model, the field information data, and the setup data are integrated to produce optimal setup data by optimal computation. According to the optimal setup data, the HVAC system proceeds to modulate room temperature, room humidity, or gas concentration to achieve functions of maintaining indoor thermal comfort and energy conservation.

Controlling device and method for HVAC system

An apparatus of dynamic anti-vibration for a storage device to support a storage device in a housing is provided. The apparatus includes a base board for holding the storage device, a plurality of damping elements coupled to the base board and the housing which have damping characteristics to dissipate kinetic energy and reduce the vibration of the base board, and at least one actuator coupled to the base board and the housing. The actuator electrically connected to the control unit is driven by the control unit, so as to generate a force to neutralize the vibration of the base board.

Apparatus of dynamic anti-vibration for storage device

An apparatus of dynamic anti-vibration for a storage device to support a storage device in a housing is provided. The apparatus includes a base board for holding the storage device, a plurality of damping elements coupled to the base board and the housing which have damping characteristics to dissipate kinetic energy and reduce the vibration of the base board, and at least one actuator coupled to the base board and the housing which generates a force to neutralize the vibration of the base board.

A disc clamping device with self lock elements particularly for DVD-ROM or CD-ROM fixedly maintained on a turntable when disc is rotating in high speed. The device comprises a turntable having a boss on the center for putting disc thereon, and a disc clamping member tightly sleeved on boss having protuberances on periphery wherein protuberances are deformed inwards when biased by disc such that disc can insert through disc clamping member, and then protuberances return to original forms by elastically energized force for clamping disc on turntable. By utilizing this, the purposes of decreasing the umber of parts, easy assembly, and high precision positioning of disc are achieved.

Disc clamping device with self lock elements

A disc clamp mechanism for preventing a disc (e.g., DVD-ROM or CD-ROM) from slipping and/or loosening in a high speed rotation comprises a positioning member sized to the center hole of the disc having a hole for being mounted on a turntable, and an inclined surface; a helical spring within the positioning member; a disc-clamping member sized to the center hole of the compact disc having circumferential raised portions, recessed portions each extending from the raised portion, and flexible V-shaped members surrounded by two recessed portions and a raised portion; and an elastic plane-like member mounted on the positioning member. As such, the disc is secured by the raised portions, the inclined surface, and the turntable when loaded onto the disc-clamping member. This mechanism finds applications in the DVD-ROM or CD-ROM products. Further, a thinner construction, an easy assembly, and a high positioning precision are realized by this mechanism.

Disc clamp mechanism

A spindle motor for a disc drive, such as a CD-ROM drive, is provided. This spindle motor is a brushless motor of a single-phase axial-winding and radial-gap type including a stator, a rotor coupled to said stator, and a driving circuit for supplying a driving signal to the stator to rotate the rotor. The stator includes a pair of upper and bottom salient-pole pieces formed with a plurality of tooth-like portions serving as salient-poles. The peak surface of each tooth-like portion is formed into a symmetrical convex shape, which minimizes the cogging torque of the motor. Further, the use of a phase-adjuster in the driving circuit allows the motor to produce large output torque at high speeds. The output characteristics of this spindle motor meet the requirements of high speed CD-ROM drives.

Spindle motor for optical disc drives

A stator for a single-phase axially wound brushless motor with a diametrical air-gap has a plate structure with at least one plate whose profile comprises: a central circular hole; a plurality of salient poles surrounding the central hole with each salient pole having a symmetrical profile; and a groove opening for every two adjacent salient poles. The ratio of the included angle of the two sides of a groove opening divided by the pitch angle of salient poles is between 0.55 to 0.68.

Optimum groove/pole ratio for brushless motor stator profile

Growing community of inventors

Hsinchu, Taiwan

Min-Der Wu