J.D. COMPONENTS CO., LTD. Patent applications |
Patent application number | Title | Published |
20140320051 | MOTOR WINDING AND POWER ELECTRONIC SWITCH ASSEMBLY HAVING SWITCHABLE OUTPUT CAPABILITY - A motor winding and power electronic switch assembly having switchable output capability is disclosed to include a first winding set including a first upper winding and first lower winding connected to a common contact, a first switch set including four power electronic switches electrically connected to the first winding set, a second winding set including a second upper winding and a second lower winding and connected to the common contact, a second switch set including four power electronic switches electrically connected to the second winding set, a third winding set including a third upper winding and a third lower winding connected to the common contact, a third switch set including four power electronic switches electrically connected to the third winding set, and a configuration control means for controlling on/off of the power electronic switches to form a H type drive configuration or Y type drive configuration. | 10-30-2014 |
20140216837 | ELECTRIC KICK SCOOTER - An electric kick scooter including a scooter body, a drive device and a strain gauge is provided. The scooter body has a foot plate, a steering tube and a rear wheel respectively provided at front and rear ends of the foot plate, and a handle bar and a front wheel respectively provided at top and bottom ends of the steering tube. The drive device has a motor installed in the front wheel or rear wheel, and a battery installed with the scooter body and electrically connected to the motor. The strain gauge is attached to the steering tube or handle bar of the scooter body to sense the strain generated on the steering tube or handle bar when it receives a force. The strain signal of the strain gauge is transmitted to a controller for enabling the controller to control an action of the motor accordingly. | 08-07-2014 |
20120226400 | POWER-ASSISTED SYSTEM FOR BICYCLE - A power-assisted system is to be assembled to a derailleur-equipped bicycle for providing an auxiliary force to the bicycle. The power-assisted system includes: a microcomputer; a pedaling-rate sensor; a bicycle-speed sensor; a shift-position source; and an auxiliary-force database including data about at least a pedaling rate, a running speed, a current gear ratio and the auxiliary force, for defining a ratio between the running speed and the current gear ratio as a first comparison value, and defining the pedaling rate as a second comparison value wherein an auxiliary-force comparison table is made of levels of the auxiliary force to be output corresponding to the first and second comparison values. The microcomputer uses a determining logic circuit to determine the suitable level of the auxiliary force to be output and control the auxiliary-force providing device to output the auxiliary force in the determined level. | 09-06-2012 |
20120098222 | CASTER SWITCHING MECHANISM FOR SCOOTER AND METHOD OF OPERATING THE SAME - A caster switching mechanism for installation in a footboard of a scooter is used to control, through a switch pivotally connected with the footboard, whether a wheel seat is rotatable relative to footboard. When the switch is located at a restricted position where the wheel seat is stopped by the switch, the wheel seat is prohibited from rotation relative to the footboard such that a wheel that is rotatably mounted to the wheel seat can roll along one direction only. When the switch is located at an unrestricted position where the switch is separated from the wheel seat, the wheel seat is rotatable relative to the footboard such that the wheel can roll along any direction corresponding to the orientation of the wheel seat. | 04-26-2012 |