摘要:
A composite bipolar plate of polymer electrolyte membrane fuel cells (PEMFC) is prepared as follows: a) preparing a bulk molding compound (BMC) material containing a vinyl ester resin and a graphite powder, the graphite powder content of BMC material ranging from 60 wt % to 80 wt %, based on the compounded mixture; b) molding the BMC material from step a) to form a bipolar plate having a desired shape at 80-200° C. and 500-4000 psi, wherein the graphite powder is of 40 mesh-80 mesh.
摘要:
A memory device includes two electrodes, vertically separated and having mutually opposed contact surfaces, between which lies a phase change cell. The phase change cell includes an upper phase change member, having a contact surface in electrical contact with the first electrode; a lower phase change member, having a contact surface in electrical contact with the second electrode; and a kernel member disposed between and in electrical contact with the upper and lower phase change members. The phase change cell is formed of material having at least two solid phases, and the lateral extent of the upper and lower phase change members is substantially greater than that of the kernel member. An intermediate insulating layer is disposed between the upper and lower phase change members adjacent to the kernel member.
摘要:
A magnetized fan and a method of fabricating the same are disclosed. The fan has a hub and a plurality of blades radially extending from a periphery of the hub. The fan is fabricated from magnetic material. Thereby, sectors are formed multiple N and S poles. To fabricate the fan, the N and S poles are arranged in accordance with the requirement of the sectors, and the magnetic material is injected to the fan according to the arrangement of the N and S poles. The magnetic material is then magnetized to generate magnetic force.
摘要:
A heat dissipation apparatus has an enclosure, in which a lateral fan seat is integrally formed with the enclosure. The lateral fan seat divides the interior space of the enclosure into an upper chamber and a lower chamber. An axis is installed across the upper and the lower chambers through a center of the fan seat. A coil set, a magnetic element and a plurality of blades are mounted about the axis in each of the upper and lower chambers. Thereby, two sets of fans are formed in a single enclosure to increase the heat dissipation effect while the assembly convenience is improved.
摘要:
An improved bearing for a heat dissipation fan has an oil chamber for containing lubricant. The oil chamber has a sidewall extending between one open end and one closed end. The closed end is perforated with a through hole, and an edge of the sidewall at the open end is partially recessed to form at least one notch. An external surface of the sidewall is partially recessed along an elongate direction to form at least one oil slot aligned with the notch, the recessed external sidewall is further perforated with a through hole. An O-ring is disposed adjacent to the closed end of the oil chamber. The O-ring has an aperture aligned with the through hole of the closed end. An axial column is inserted into the oil chamber through the aperture of the O-ring and the through hole of the closed end. An external sleeve is used for receiving the oil chamber therein. The central axis column is operative to rotate within the oil chamber, such that the lubricant contained in the oil chamber is driven to flow upwardly through the notch into the oil slot. The axial column is so configured to prevent the lubricant from flowing external to the oil chamber via the through hole of the closed end.
摘要:
A memory device includes two electrodes, vertically separated and having mutually opposed contact surfaces, between which lies a phase change cell. The phase change cell includes an upper phase change member, having a contact surface in electrical contact with the first electrode; a lower phase change member, having a contact surface in electrical contact with the second electrode; and a kernel member disposed between and in electrical contact with the upper and lower phase change members. The phase change cell is formed of material having at least two solid phases, and the lateral extent of the upper and lower phase change members is substantially greater than that of the kernel member. An intermediate insulating layer is disposed between the upper and lower phase change members adjacent to the kernel member.
摘要:
A wind power generator includes a cover, a front nose cone, a rear nose cone and a vane unit. The cover has a curved air-guiding portion. The front nose cone and the rear nose cone have a plurality of supporting pillars fixedly connected to the front portion and rear portion of the inner wall of the cover, respectively. The vane unit is provided between the front nose cone and the rear nose cone. After the wind enters the passage formed between the curved surface of the front nose cone and the front portion of the curved air-guiding portion of the cover, the wind speed is accelerated due to the narrowing of the flowing path, thereby to generate a larger kinetic energy to cause the rotation of the vane unit. In this way, the generator within the rear nose cone obtains a greater capacity of generating electricity. Further, the generator can be still activated even under a lower wind speed.
摘要:
A sealing material structure of an organic electroluminescent display panel and a method for manufacturing the same are provided. The sealing material structure comprises a glass substrate, a cover, an adherent layer, and a barrier area. The glass substrate has a light emitting display structure formed thereon and wraps an organic light emitting structure of the light emitting display structure. The cover seals with the glass substrate in an opposite position. The adherent layer is provided between the glass substrate and the cover. The barrier area and/or fillister is grown on the glass substrate and provided at least one side of the adherent layer. Thereby the light emitting display structure and the organic light emitting structure cooperate to constitute an internal structure; the barrier area can isolate external electrodes affected the internal structure spilled from the adherent layer and widely provided around the internal structure and the barrier area can isolate inner of panel cutting line affected the panel cutting process spilled from the adherent layer and widely provided inner the panel cutting line.
摘要:
An optical mouse system with an illumination guide includes a concave lens for spreading light to create a uniform, low contrast, illumination pattern. The uniform illumination pattern increases the accuracy of mouse movement detected by the sensor. The illumination source and optical sensor are mounted in the same plane, directly on the PCB. The higher angle of the optical path causes more light to be reflected to the optical sensor, increasing optical efficiency and allowing a smaller, lower powered LED to be used. This also results in increased sensitivity of the optical sensor. Lower power usage increases battery life for mobile or wireless-mouse use, while reducing thermal waste considerations. This allows the creation of a significantly smaller form factor for the overall package, thereby reducing materials costs and giving designers more flexibility for external design considerations.
摘要:
A substrate clamp includes a bar supporter having a end for connecting and fixing a substrate bearing apparatus; an arm extending from another end of the bar supporter and profiling an angle with the side wall of the bar supporter; and a buffer layer arranged on the side wall of the bar supporter. The present substrate clamp can effectively decrease the split problem of the glass substrate causing from the shocking and sliding in the clamping or moving of the manufacturing processes and enhance the product yield.