Delta Electronics, Inc.

Google Inc.

Chi-Wen Chung

En-Yi Chu

Hung-Wei Lin

Ching-Hsiung Tsai

Ming-Li Tsao

Hsien-Lung Tsai

Po-Tzu Chen

Wei-Ying Chu

Chin-Hsiang Chen

Hong-Cheng Sheu

Chieh-Huang Lu

Chun-Chin Su

Chun-Hsiu Chen

Chun-Hung Chen

Chien-Ping Huang

Yu-Xian Huang

Ming-Tien Tsai

Han-Jung Chueh

Chen-Chung Chang

Li-Chi Wu

Chi-Shin Chuang

Jen-Yuan Chen

Chun-Lin Chen

An inner gear wheel with impact absorption structure and a reducer using same are disclosed. The inner gear wheel includes a body wheel, fixing holes, an impact absorption structure and buffer elements. The body wheel includes an inner ring surface surrounding an axis and inner gears disposed around the inner ring surface. Fixing holes penetrate the body wheel along an axial direction. The impact absorption structure is disposed corresponding to one of the fixing holes, and includes buffer grooves and a connecting slit. The buffer grooves are disposed at two sides of the corresponding fixing hole along a circumferential direction. The connecting slit extends along the circumferential direction between the inner ring surface and the fixing hole and connects the pair of buffer grooves. The buffer elements are disposed in the buffer grooves to absorb stress transmitted from an outer gear plate engaged with the inner gear wheel.

Inner gear wheel with impact absorption structure and reducer using same

A user equipment (UE) is configured to implement selective call initiation delay responsive to detection of a contemporaneous handover process. When a user provides input indicating initiation of a packet-switched call, the UE determines whether there is a handover process ongoing. If not, a call initiation message (e.g., a SIP INVITE message) is transmitted without further delay. However, if a handover process is ongoing at the time of the user input, the UE refrains from promptly transmitting the call initiation message and starts a timer of a predetermined duration to provide additional time for the handover process to complete. Responsive to the timer expiring or to the handover process completing before the timer expires, the UE then promptly transmits the call initiation message to initiate establishment of the packet-switched call over whatever network to which the UE is currently attached.

Call initiation delay to facilitate network handover

A cycloid speed reducer assembly is disclosed for optimizing the component structure. The accommodation space required for the sealing element is integrated into the track ring to save the material costs and significantly reduce the overall volume. A spacer ring placed between the front and rear bearings is used to adjust the clearances of the front bearing and the rear bearing to facilitate the quantitative production and control the yield. Since the compact structure of the cycloid speed reducer assembly includes two output ends, it facilitates to arrange an encoder between the speed reducer and the motor for closed-loop feedback control, so as to improve the control accuracy of the system. With the hollow input shaft, dual encoder applications can be realized. When a flexible structure is added to the output end, the flexible structure can be connected to another encoder to further realize the application of the torque sensor.

Cycloid speed reducer assembly

A cycloid speed reducer is disclosed. The accommodation space required for the sealing component is integrated into the track ring to save the material costs and significantly reduce the overall volume. Moreover, a spacer ring is placed between the front bearing and the rear bearing, and the thickness of the spacer ring can be used to adjust the clearances of the front bearing and the rear bearing to facilitate the quantitative production and control the yield. On the other hand, the initial shape of the output plate is adjusted through mass production molding, and the thickness next to the protruding structures of the output plate is increased, so that the supporting plane can be milled through a lower-cost lathe processing, and the accuracy of bearing plane can meet the requirements. There is no need to perform full-circle milling on the output plate, and the processing hours are reduced significantly.

Cycloid speed reducer

A rotary bearing assembly includes an input shaft, an inner-ring component, an outer-ring component and a load element. The input shaft is configured to combine a rotating shaft of a motor to provide a power input. The inner-ring component includes a gear set, wherein the inner-ring component is sleeved on the input shaft through the gear set and driven by the input shaft. The outer-ring component is sleeved on the inner-ring component through a load element and engaged with the gear set, wherein when the gear set is driven by the input shaft to drive the inner-ring component, the gear set drives the outer-ring component, and the inner-ring component and the outer-ring component are rotated relatively, wherein one of the inner-ring component and the outer-ring component is served to provide a power output, and a rotational speed difference is between the power input and the power output.

Rotary bearing assembly

A speed reducer comprises a transmission shaft, an eccentric wheel, a first wheel assembly, a rotating wheel and a second wheel assembly. The first wheel assembly comprises a first wheel disc and at least one first roller. The at least one first roller is disposed on the inner wall of first wheel disc. The rotating wheel comprises a main body comprising an outer ring structure and a concave structure. The outer ring structure comprises at least one first tooth. The at least one first tooth is in contact with the corresponding first roller. At least one second roller is disposed within the concave structure. The second wheel assembly comprises a second wheel disc and at least one second tooth. The at least one second tooth is disposed on an outer periphery of the second wheel assembly. The at least one second tooth is in contact with the corresponding second roller.

Speed reducer

A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a gear-plate-output shaft, a reducer-output shaft and a motor-output shaft. The pedal shaft is arranged along an axial direction. The gear-plate-output shaft includes a first section and a second section arranged in the axial direction. The first section is concentrically sleeved on the pedal shaft through a first one-way bearing along a radial direction. When the pedal shaft is forced to rotate, the gear-plate-output shaft is driven through the first one-way bearing. The reducer-output shaft is concentrically sleeved on an outer surface of the second section through a second one-way bearing along the radial direction. The motor-output shaft is concentrically sleeved on the reducer-output shaft along the radial direction. When the motor-output shaft drives the reducer-output shaft to rotate, the gear-plate-output shaft is driven by the reducer-output shaft through the second one-way bearing.

Power module of electric assisted bicycle

A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a gear-plate-output shaft, a reducer, a motor, a first sensor, a housing, a second sensor and a driving controller. The gear-plate-output, a reducer-output shaft and a reducer-fixed shaft of the reducer are disposed in parallel and sleeved on the pedal shaft concentrically. The motor drives the gear-plate-output shaft to rotate. The first sensor is disposed on the reducer-fixed shaft for sensing a first torque of the reducer-output shaft acting on the reducer-fixed shaft. The reducer-fixed shaft is connected to the housing. A frameset-fastening component protrudes outwardly from the housing, and is configured to fix the power module on the frameset. The second sensor is disposed on the frameset-fastening component for sensing a second torque of the power module acting on the frameset. The driving controller controls the motor in accordance with the second torque and the first torque.

A speed reducer includes an input shaft, an input gear, a fixing gear and an output gear. The input shaft includes an eccentric structure. The input gear is disposed on the eccentric structure and includes first teeth of which each with a first contact portion and a second contact portion. The fixing gear and the output gear are disposed corresponding to the input gear, wherein the fixing gear includes second teeth, and the second teeth are in contact with the first contact portions, wherein the output gear includes third teeth, and the third teeth are in contact with the second contact portions. A first tooth number difference between the first teeth and the second teeth is different from a second tooth number difference between the first teeth and the third teeth.

A rotary machine device configured to contact with an external object is provided. The rotary machine device includes a rotary motor, a first encoder, a fixed housing, a fixed shaft, an output shaft and a second encoder. The rotary motor includes a motor housing and an exerting shaft. As the rotor of the motor housing rotates for a rotation angle, the rotor drives the exerting shaft to rotate for an exerting angle. The first encoder detects the rotation angle of the rotor. The output shaft includes an elastomer and is inserted in an accommodation hole of the fixed shaft. The elastomer is penetrated through the output shaft and is connected to the exerting shaft. The second encoder includes a disk and a sensor disposed on the exerting shaft and the fixed shaft respectively. The sensor detects the exerting angle of the exerting shaft through the disk.

Rotary machine device and linear machine device

A cycloid speed reducer includes an input shaft, a rolling assembly, first and second cycloid discs, a crankshaft and an output disc. The first and second cycloid discs are disposed around the input shaft and driven by the input shaft. The first and second cycloid discs are located at two opposite sides of the rolling assembly, respectively. The crankshaft includes first and second eccentric ends and first and second concentric ends integrally formed as a one-piece structure and arranged sequentially. The first and second eccentric ends are linked with the first and second cycloid discs respectively. An eccentricity value is between any neighboring two of the concentric and eccentric ends. The diameters of all the concentric and eccentric ends are equal. The output disc is linked with the first or second concentric end. The output disc is a power output end of the cycloid speed reducer.

A cycloid speed reducer includes an input shaft, a rolling assembly, a first cycloid disc, a second cycloid disc, a first crankshaft, a second crankshaft, a first output disc and a second output disc. The first cycloid disc and the second cycloid disc are disposed around the input shaft and rotated with the input shaft. The first cycloid disc and the second cycloid disc are located at two opposite sides of the rolling assembly, respectively. The first crankshaft includes a first concentric end and a first eccentric end. The first eccentric end is linked with the first cycloid disc. The second crankshaft includes a second concentric end and a second eccentric end. The second eccentric end is linked with the second cycloid disc. The first output disc is linked with the first concentric end. The second output disc is linked with the second concentric end.

The present disclosure provides a work equipment system and a control method therefor. The work equipment system includes a work equipment, a temperature sensor and a controller. The work equipment includes a motor device, and the motor device is configured to provide a motive power to a load device. The temperature sensor is configured to measure a motor temperature. The controller is configured to: calculate a first current based on a required motive power command and electrical parameters; calculate a temperature difference between the motor temperature and a preset temperature; calculate a thermal power based on the temperature difference and a thermal resistance; calculate a second current based on the thermal power and the motor resistance; and compare the second current to an effective value of the first current for determining whether the second current is smaller than the first current.

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Taoyuan, Taiwan

Chi-Wen Chung