Patent application number | Description | Published |
20090236075 | HEAT DISSIPATION ASSEMBLY WITH STRETCHABLE FASTENERS - A heat dissipation assembly comprises a heat sink for being disposed on an electronic component mounted on a printed circuit board, and a pair of fasteners for securing the heat sink on the printed circuit board. Each fastener comprises a sleeve extending through the printed circuit board, a latch received in the sleeve, a stretchable pole inserted through the sleeve and a handle pivotably fixed to the pole. The pole is raised by rotation of the handle to a locked position. At the locked position, the handle downwardly acts on the heat sink, and the pole pushes the latch out of the sleeve. The latch presses against the printed circuit board upwardly to realize an intimate contact between the heat sink and the electronic component. | 09-24-2009 |
20100142152 | FASTENER AND HEAT SINK ASSEMBLY HAVING THE SAME - A fastener includes a fastener post, a sleeve, a nut and an elastic element. The fastener post includes a shaft, a tapered portion and a threaded portion. The sleeve includes a smooth portion and a clamp portion having a number of resilient strips. The nut is threaded onto the threaded portion. The elastic element is disposed around the sleeve and compressed between the nut and an ear of a heat sink to generate a resilient force. The resilient force moves the tapered portion of the fastener post into the sleeve such that the strips of the clamp portion of the sleeve are tilted outwardly to tightly abut against a bottom of a printed circuit board on which the heat sink is mounted. | 06-10-2010 |
20100165580 | FASTENER AND HEAT SINK ASSEMBLY HAVING THE SAME - A fastener includes a connecting pole, a sleeve, an elastic element enclosing the sleeve and a baffling portion. The connecting pole includes a shaft, a head and a thread portion. The sleeve includes an engaging portion and a receiving portion extending from the engaging portion. The engaging portion encloses a top end of the shaft therein and abuts against the head. The receiving portion encloses a bottom end of the shaft and a top end of the thread portion. The receiving portion includes a plurality of spaced resilient pieces. The baffling portion screws onto the thread portion of the connecting pole. When the connecting pole rotates relative to the sleeve, the baffling portion moves upwardly along the thread portion to push the pieces of the receiving portion outwardly to make the pieces abut against a bottom surface of a printed circuit board. | 07-01-2010 |
20100230077 | FASTENER AND HEAT DISSIPATION DEVICE USING THE SAME - A fastener includes an upper mounting portion, a lower mounting portion, a connecting portion extending through the upper mounting portion and connecting the lower mounting portion, a resilient portion set on the connecting portion and pressing the upper mounting portion, at least a supporting portion with a first end thereof connecting the upper mounting portion, and an operating portion pivotally connecting a second end of the at least a supporting portion. The operating portion includes a cam abutting against the connecting portion. The cam is rotatable relative to the at least a supporting portion, to bring the upper mounting portion to move up and down, and make the fastener shift between a locked state in which a fan is securely sandwiched between the upper and lower mounting portions and a released state in which the upper mounting portion is disengaged from the fan. | 09-16-2010 |
20100236755 | HEAT DISSIPATION DEVICE - A heat dissipation device adapted for removing heat from heat-generating components includes a plurality of first fins spaced from each other and connected to the heat-generating components in thermal relationship and a plurality of second fins alternately arranged with the first fins. Each second fin is wave-shaped and has a plurality of flat first engaging portions formed at wave crests thereof and a plurality of flat second engaging portions formed at wave troughs thereof. The first engaging portions are attached to a rear side of one of two first fins neighboring to each second fin. The second engaging portions are attached to a front side of another one of the two neighboring first fins. | 09-23-2010 |
20100246132 | FASTENER AND HEAT SINK ASSEMBLY HAVING THE SAME - A heat sink assembly is mounted on a printed circuit board to dissipate heat generated by an electronic component. The heat sink assembly includes a heat sink and a plurality of fasteners fixing the heat sink to the printed circuit board. The fastener includes a head, a post extending downwardly from the head through the heat sink, an elastic member encircling the post and compressed between the head and the heat sink, and an engaging member fixed to the printed circuit board. A top of the engaging member is fastened to a bottom of the post. When the post, together with the head, is rotated relative to an axis thereof toward a locked position, the post would be driven by the engaging member to automatically lock with the engaging member at the locked position. | 09-30-2010 |
20100258279 | HEAT DISSIPATION DEVICE WITH FAN HOLDER - A heat dissipation device includes a heat sink, a fan mounted on the heat sink and a fan holder mounting the fan on the heat sink. The fan holder includes a fan guard resting on the fan, a first clip and a second clip pivotably attached to the fan guard and engaged with the heat sink. The first clip includes an actuating member pivotably connecting to the fan guard and a buckling member pivotably connecting to the actuating member. The buckling member has a clasp engaging the heat sink at a locked position. The buckling member moves with a pivotal movement of the actuating member relative to the fan guard to leave the locked position and reach an unlocked position. | 10-14-2010 |
20100294463 | HEAT DISSIPATION DEVICE HAVING A FAN THEREON - A heat dissipation device includes a heat sink and a blower. The heat sink has a base and a plurality of fins formed on the base. The blower includes a frame and an impeller rotatably secured to the frame. The frame faces and is secured to the base of the heat sink to define an airflow passage between the base of the heat sink and the blower. An airflow inlet is defined through the frame of the blower. Another airflow inlet is defined through the base of the heat sink. An airflow produced by the blower passes through the airflow passage via the airflow inlets and then blows towards channels defined between the fins of the heat sink. | 11-25-2010 |
20100314080 | HEAT DISSIPATION DEVICE - A heat dissipation device includes a heat conducting board for being attached to an electronic component mounted on a printed circuit board, a fin unit disposed on the heat conducting board, a fixing module and a fan secured on the fixing module. The fixing module includes two supporting frames located at two opposite lateral sides of the fin unit respectively, a fan holder spanning over the fin unit and pivotally fixed to the two supporting frames, and a fastening member extending through the fan holder and a corresponding supporting frame and being capable of fixing the fan holder at different positions relative to the fin unit of the heat sink. The fan is fixed to the fan holder of the fixing module and provides airflow towards the fin unit. | 12-16-2010 |
20110038125 | FASTENER AND ELECTRONIC DEVICE HAVING THE SAME - A fastener comprises a fastener post, a clasping element and an elastic element. The fastener post comprises a head, a post body and a threaded portion. The post body has a first extension section connecting with the head, a second extension section connecting with the threaded portion and a recess section connected between the first and second extension sections. The clasping element comprises an annular clasping body, a first clasping portion axially extending from the clasping body and a second clasping portion extending outwardly and then downwardly from the clasping body. The clasping body encloses the post body, the first clasping portion engages with the recess section of the post body, and the second clasping portion engages with the heat sink. The elastic element is set around the post body and located between the head and the clasping body. | 02-17-2011 |
20110096501 | HEAT DISSIPATION DEVICE AND ELECTRONIC DEVICE USING THE SAME - An exemplary heat dissipation device includes a heat sink defining air passages therein, a fan holder fixedly mounted on the heat sink, a fan mounted on the fan holder, and an adjustable wind-guiding module located in and pivoted to the fan holder. The fan is positioned for generating an airflow flowing through the adjustable wind-guiding module generally toward the air passages of the heat sink. The adjustable wind-guiding module is selectably pivotable with respect to the fan holder such that a direction of the airflow generally toward the air passages of the heat sink is changed accordingly. | 04-28-2011 |
20110108234 | FASTENING DEVICE AND HEAT DISSIPATION APPARATUS USING THE SAME - A fastening device includes a fixing bracket and a fastener. The fixing bracket includes a fixed arm and two adjusting arms respectively connecting at two ends of the fixed arm. Each of the two ends of the fixed arm defines a plurality of spaced retaining slots. The retaining slots are located at different positions along the fixed arm. Each of the two adjusting arms has a sliding end retained selectively in one of the retaining slots and an opposite fixing end. The fastener extends through the fixing end of each of the two adjusting arms. | 05-12-2011 |
20110146949 | HEAT DISSIPATION DEVICE - An exemplary heat dissipation device includes a heat-absorbing plate, a fin unit, a heat pipe connected to the heat-absorbing plate and the fin unit, and a clip spanning over the heat-absorbing plate and resting on the heat pipe. A fastening tab and a positioning tab are formed on the heat-absorbing plate. A fastening hole and a positioning hole are defined in the clip respectively corresponding to the fastening and positioning tabs. The fastening tab is engaged in the fastening hole. The positioning tab is received in the positioning hole. | 06-23-2011 |
20110146960 | FAN HOLDER AND HEAT DISSIPATION DEVICE USING THE SAME - A fan holder adapted for fixing a fan onto a heat sink includes a frame, a fastener pivotedly connected with the frame, and a first resilient member disposed between the frame and the fastener. When the fastener is located at a first position, the first resilient member exerts a resilient force on and keeps the fastener at the first position, and the fan is sandwiched between the fastener and the frame. When an external force is applied on the fastener, the fastener rotates from the first position to a second position in which the fan can no longer be sandwiched between the fastener and the frame, and when the external force is removed, the first resilient member drives the fastener from the second position back to the first position. | 06-23-2011 |