RHINE ELECTRONIC CO., LTD. Patent applications |
Patent application number | Title | Published |
20140313019 | REMOTE CONTROLLER WITH MAGNET - A remote controller with magnet for ceiling fan and includes a transmitter body defining a compartment in which at least a magnet is installed. With the magnet installed therein, the transmitter body can readily attach to a flat surface of a ferric object. Alternatively, the transmitter body can be used with a holder defining a pocket in which a ferric plate is arranged. The transmitter body can magnetically attach to the ferric plate of the holder. By this arrangement, the transmitter body can readily stored within the pocket. This arrangement can effectively increase the convenience of the operation and usage. In addition, the overall configuration is simple and free from all kind of malfunction. It can be readily expected to reach its intended convenience and configurational stability. | 10-23-2014 |
20140217845 | DEVICE TO PREVENT FOREIGN OBJECTS FROM ENTERING SCREW HOLES OF BRUSHLESS MOTOR OF CEILING FAN - The present invention relates to a device to prevent foreign objects from entering screw holes of a brushless motor of a ceiling fan. The device includes a cover to prevent foreign objects and a motor cover. The cover is adapted to cover screw holes of the motor cover. The cover has a hollow cover body which has an accommodation space corresponding in position to the screw holes of the motor cover. The ends of screws are in the accommodation space of the hollow cover body of the cover so that the iron fillings of the screws and foreign objects will fall in the accommodation space. The present invention can prevent the iron fillings of the screws and foreign objects from entering the motor to cause noises so as to enhance the reliability of the product and prolong the service life the product. | 08-07-2014 |
20100060224 | METHOD OF CONTROLLING SPEED OF BRUSHLESS MOTOR OF CEILING FAN AND THE CIRCUIT THEREOF - The present invention relates to a method and a circuit of controlling a speed of a brushless motor of a ceiling fan. The circuit includes a motor PWM duty consumption sampling unit and a motor speed sampling to sense a PWM duty and a speed of the brushless motor. A central processing unit is provided to compare the PWM duty and the speed of the brushless motor to a preset maximum PWM duty and a preset maximum speed. When the PWM duty reaches to the preset maximum PWM duty first, the central processing unit sets the current speed to be a maximum speed, and speeds of each level are calculated according to the maximum speed. If the speed reaches to the preset maximum speed first, a constant-speed control will take over to control the brushless motor, and speeds of each level are according to the preset speeds. | 03-11-2010 |
20100013423 | CONTROL CIRCUITRY OF CEILING FAN FOR CONTROLLING ROTATION DIRECTION AND SPEED - A control circuitry of a ceiling fan for controlling speed and direction of rotation of the ceiling fan includes a power switch, an electromagnetic interference reduction circuit connected to the power switch, a power frequency detecting circuit connected to the electromagnetic interference reduction circuit, a central processor connected to the power frequency detecting circuit, a motor driving circuit connected to the central processor and a brushless motor, a rectification and filter circuit connected to the electromagnetic interference reduction circuit and the motor driving circuit, and a power supply circuit connected to the power frequency detecting circuit and the central processor. When the power switch is operated, it will generate interruptions, and the central processor will sense these interruptions and determine which are commands for speed change and which are commands for direction change according to the time of the interruptions to control the brushless motor through the motor driving circuit. | 01-21-2010 |
20090047005 | DRIVING APPARATUS FOR A CEILING FAN - A driving apparatus for a DC brushless motor of a ceiling fan is provided. By setting at least one coder and one sensor outside the DC brushless motor, the driving apparatus can sense the position of magnetic poles of the motor for driving the motor. Meanwhile, a controller set with the motor stores the rotation speed of the motor before being turned off by detecting the turn-off time of a turn-on/off signal. | 02-19-2009 |
20090004010 | SIGNAL TRANSMISSION APPARATUS OF A DC BRUSHLESS MOTOR FOR A CEILING FAN - A signal transmission apparatus of a DC brushless motor for a ceiling fan is provided. The signal transmission apparatus comprises a transmitting line. The transmitting line is configured to transmit processed output signals of a plurality of electromagnetic sensors, in which usage of transmission lines is reduced. The output signals of the electromagnetic sensors represent the operation of the magnetic poles of the DC brushless motor. | 01-01-2009 |