He-Ping
He-Ping Liu, Shenzhen City CN
Patent application number | Description | Published |
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20100053904 | LOCKING DEVICE FOR HEAT SINK - A locking device is used for securing a heat sink to an electronic device mounted on a first face of a printed circuit board which defines a first hole. The heat sink defines a second hole therein. The locking device has a fastener including a head portion located aside the heat sink, a foot portion located aside a second face of the printed circuit board, and a body portion extending through the holes of the heat sink and the printed circuit board and interconnecting the head portion and the foot portion. The foot portion includes a buckling part abutting against the second face of the printed circuit board, and a positioning part extending toward the head portion to a position above the buckling part. When the buckling part abuts against the printed circuit board, the positioning part has a portion thereof entering into the first hole. | 03-04-2010 |
20100147491 | HEAT DISSIPATION DEVICE HAVING A FAN HOLDER FOR ATTACHMENT OF A FAN - A heat dissipation device includes a heat sink, a fan and a fan holder attaching the fan to the heat sink. The heat sink includes a base and a plurality of fins. The fan includes a frame and four engaging flanges at a periphery thereof. The fan holder includes a supporting board supporting the fan thereon, a plurality of spaced retaining plates extending downwardly from a periphery edge of the supporting board and clasping the fins, two locking sheets extending upwardly from two diagonal corners of the supporting board and two locking poles extending upwardly from another two diagonal corners of the supporting board. The locking sheets abut against lateral sides of two engaging flanges of the fan. The locking poles are engagingly received in another two engaging flanges of the fan. | 06-17-2010 |
He-Ping Liu, Shenzhen CN
Patent application number | Description | Published |
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20090159245 | HEAT DISSIPATION DEVICE HAVING A FAN HOLDER - A heat dissipation device includes a heat sink, a fan holder and a fan secured on a front side of the fan holder. The heat sink comprises a base and a plurality of fins on the base. An engaging groove is defined in top ends of the fins. The fan holder comprises a top panel and two sidewalls extending downwardly from two lateral edges of the top panel. The top panel has an inserting protrusion at a bottom surface thereof. The two sidewalls have two latching legs at lower ends thereof. The top panel is partially placed on front portion of the top ends of the fins and the inserting protrusion is inserted into the engaging groove of the fins, the two sidewalls abut against two lateral sides of the heat sink and the two latching legs fasten to two lateral sides of the base of the heat sink. | 06-25-2009 |
20090166010 | HEAT DISSIPATION DEVICE HAVING A FAN HOLDER - A heat dissipation device includes a heat sink, a fan holder and a fan secured on a front side of the fan holder. The heat sink includes a base having two first fixing ears at its two lateral sides and a plurality of fins on the base. At least an engaging notch is defined in top ends of the fins. The fan holder includes a top panel and two sidewalls extending downwardly from two lateral edges of the top panel. The top panel has at least an inserting protrusion at a bottom surface thereof. The two sidewalls have two fixing flanges at lower ends thereof. The top panel is partially placed on front portion of the top ends of the fins and the inserting protrusion is inserted into the engaging notch of the fins, the two sidewalls abut against two lateral sides of the heat sink and the two fixing flanges are disposed on the two first fixing ears. | 07-02-2009 |
He-Ping Wu, Edison, NJ US
Patent application number | Description | Published |
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20090124820 | C1-Symmetric Bisphospine Ligands and Their Use in the Asymmetric Synthesis of Pregabalin - Materials and Methods for preparing (S)-(+)-3-(aminomethyl)-5-methyl-hexanoic acid and structurally related compounds via enantioselective hydrogenation of prochiral olefins are disclosed. The methods employ novel chiral catalysts, which include C | 05-14-2009 |
He-Ping Zhang, Naking City CN
Patent application number | Description | Published |
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20080247383 | Voice over internet protocol phone - A VoIP phone includes a signal port, a comparison and distribution module, a first communication protocol module, a second communication protocol module, and a communication interface for a user to dial and talk. The comparison and distribution module is connected with the signal port for sorting signal outputted from the signal port into a first signal and a second signal by respective signal formats of the signals. The first communication protocol module is connected with the comparison and distribution module for processing the first signal and output a processed first signal, and the second communication protocol module is connected with the comparison and distribution module for processing the second signal and output a second processed signal. | 10-09-2008 |