Li, Sinjhuang City
Changde Li, Sinjhuang City TW
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20110305507 | COOLING FAN BEARING RETAINER RING STRUCTURE - A cooling fan bearing retainer ring structure includes: a bearing seat having a bearing cup perpendicularly extending from one side of the bearing seat, the bearing cup having an upper end, a lower end and a first shaft hole, a protrusion section being formed on inner circumference of the bearing cup near the upper end of the bearing cup and radially protruding toward a center thereof; a retainer ring disposed in the first shaft hole and having a first side in abutment with the protrusion section, a second side, a central hole and at least one retainer tongue annularly disposed in the central hole; and a bearing positioned in the first shaft hole in tight contact with the retainer ring. The bearing has a first end in abutment with the second side of the retainer ring, a second end and a second shaft hole axially extending through the bearing. | 12-15-2011 |
Chin-Chen Li, Sinjhuang City TW
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20100019108 | Holding apparatus and pivot structure thereof - The invention provides a holding apparatus. The holding apparatus comprises a loading stand and a positioning pivot pillar. A pivoting part comprising at least one adjusting unit is set on the loading stand. A pivot member comprising a plurality of locking units is set on one end of the positioning pivot pillar. The pivot member is movably pivoted to the pivoting part. When one of the at least one adjusting unit and one of the plurality of locking units are locked due to a rotation occurred between the loading stand and the positioning pivot pillar, the loading stand and the positioning pivot pillar will form a locked state. | 01-28-2010 |
Ching-Sheng Li, Sinjhuang City TW
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20090231052 | PULSE WIDTH MODULATION STRUCTURE ENABLING REGULATED DUTY CYCLE - A pulse width modulation (PWM) structure enabling regulated duty cycle includes a DC power supply unit, a signal generating unit, a voltage-dividing resistor unit, a reference voltage unit, and a comparing unit. When the DC power supply unit supplies a voltage signal to the voltage-dividing resistor unit, the latter receives the voltage signal and sets voltage levels before sending the voltage signal to the signal generating unit, so that a waveform signal generated by the signal generating unit regulates its voltage levels according to the received voltage signal before sending the waveform signal to the comparing unit. The comparing unit receives and compares the signals from the signal generating unit and the reference voltage unit, and outputs a comparison signal for driving a fan motor to operate, so that the finally output signal is substantially linear and smooth. | 09-17-2009 |
Hong-Guang Li, Sinjhuang City TW
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20090290975 | Oil-Sealing Arrangement for Cooling Fan - An oil-sealing arrangement for cooling fan includes a fan housing provided with a central hollow pipe having a hollow bearing fitted therein in a clearance fit relation, and the bearing having a front end formed into a forward tapered projection; and a blade carrier including a fitting cylinder with a rearward tapered projection. When the fitting cylinder is extended into the hollow pipe on the fan housing, the rearward tapered projection and the forward tapered projection together define a seeped oil chamber between them. When the cooling fan operates, lubricating oil seeped out of the hollow pipe along the bearing is recovered in the seeped oil chamber and flows back to the hollow pipe via the clearance between the bearing and the hollow pipe without being centrifugally thrown out of the cooling fan, allowing the cooling fan to have extended usable life. | 11-26-2009 |
20100084932 | Cooling Fan having Oil-impregnated Bearing - A cooling fan with oil-impregnated bearing includes a bearing seat having a bearing housing; a bearing rightly fitted in the bearing housing with a colloidal material applied between them to maintain dimensional precision of the bearing and the bearing housing; and a fan hub mounted on and around the bearing housing with a rotary shaft extended through the bearing. The bearing housing has a distal end integrally formed into a retaining section to prevent leakage of lubricating oil, and a proximal end having a bottom cap tightly fitted therein with a colloidal material applied between the bearing housing and the bottom cap. The bearing is formed at positions near the retaining section and the bottom cap with an oil receiving space each to minimize loss of lubricating oil. A supporting plate is provided in the bottom cap to support the rotary shaft, allowing the fan hub to rotate stably. | 04-08-2010 |
20100086395 | Cooling Fan with Oil-impregnated Bearing - A cooling fan with oil-impregnated bearing includes a base portion, a bearing, a fan hub, and a coil assembly. The base portion has a forward extended bearing housing, into which the bearing is tightly fitted with a colloidal material applied between them. The fan hub is mounted on and around the bearing housing, and has a rearward extended rotary shaft extended through a centered shaft hole of the bearing. An oil receiving space is formed on a wall of the shaft hole at a predetermined position. The coil assembly is externally tightly fitted around the bearing housing with a colloidal material applied between them. With the colloidal material, the bearing and the coil assembly can be associated with the bearing housing without detriment to the effective porosity of the bearing and the dimensional precision of the bearing housing. The oil receiving space also prevents the lubricating oil from leaking out. | 04-08-2010 |
20110033300 | OIL-RETAINING STRUCTURE ON FAN ROTOR - An oil-retaining structure on fan rotor includes a rotor body, a rotor shaft, and an oil-retaining portion. The rotor body has an open end and a closed end, on an inner side of which the oil-retaining portion is formed. The oil-retaining portion includes an annular recess, which has an oil-retaining edge and an oil-retaining surface extended between the oil-retaining edge and a bottom of the annular recess. The rotor shaft has a first end connected to the oil-retaining portion and a second end extended through a bearing of a fan. Since the oil-retaining portion is coated with a layer of oil-repellant agent, lubricant oil being centrifugally pulled out of the bearing when the fan operates and caught by the annular recess can quickly flow back to the bearing without remaining in the annular recess due to a capillary action. Therefore, the fan can have increased service life and upgraded operating efficiency. | 02-10-2011 |
20110091314 | FAN STRUCTURE - A fan structure includes a base having a receiving section; a sleeve defining a receiving space therein, and having a shaft hole communicating with the receiving space and an engaging end for engaging with the receiving section of the base; a bearing having an axial bore and received in the sleeve; and an insulating rack externally fitted around the sleeve and having a holding section for holding at least one silicon steel plate set therein, which is spaced from the sleeve by at least one first space. With these arrangements, heat produced by the silicon steel plate set during fan operation is isolated by the first space from directly damaging the bearing. | 04-21-2011 |
Kai-Hsin Li, Sinjhuang City TW
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20100052195 | Optical film structure and a manufacturing method thereof - An optical film structure and a manufacturing method thereof are disclosed. By using the co-extrusion manufacturing process, the substrate, the first light-transparent material, and the second light-transparent material are combined into one piece to change the light path. By using the rolling way, the surface of the first light-transparent material directly forms a light-guiding micro-structure. Furthermore, at least one layer out of the substrate, the first light-transparent material, and the second light-transparent material are added with the diffusion particles to form the optical film structure that has an anti-scratch effect and high yield rate. Therefore, the present invention provides a uniform optical film structure that is formed into one piece by using the co-extrusion manufacturing process to prevent the structure from being warped due to environmental variations. By adding the diffusion particles on the optical film structure, the improved optical film having anti-scratch effect and high yield rate is formed. | 03-04-2010 |
Li-Hua Li, Sinjhuang City CN
Patent application number | Description | Published |
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20100207469 | COOLING FAN WITH QUICK ASSEMBLING STRUCTURE - A cooling fan includes a base having a hollow bearing cup for receiving a bearing therein, a motor winding support mounted to a top of the bearing cup, and a blade hub mounted atop the motor winding support. The bearing cup is externally provided with channels and stop portions communicating with the channels. Each of the stop portions includes a recess and a projection. The motor winding support is internally provided with stoppers corresponding to the stop portions. Each of the radial stoppers includes a raised portion for engaging with the recess, and a sideward extended portion for abutting on a bottom of the projection. The motor winding support can be rotated to lock to the bearing cup through engagement of the stop portions with the radial stoppers. No glue dispensing is needed, and the problems of a deformed bearing and noise during fan operation are avoided. | 08-19-2010 |