摘要:
An inspecting device for a thermal module for cooling a CPU of a computer to decide whether the module can work properly is disclosed. The device includes a computer stored with preset data. A measuring unit has a heater generating heat with a predetermined temperature. A converter electrically connects the heater with the computer and converts an analogous signal corresponding to the temperature of the heater to a digital signal which is sent to the computer. A force generating mechanism is provided on the measuring unit which can generate a pressing force toward the heater. When the heater is contact with a heat-generating component contact part of the thermal module and the force generating mechanism is activated to press the part against the heater, the computer compares the data stored therein and the signal received from the converter to determine whether the thermal module can attain its required performance.
摘要:
A memory module assembly comprises a memory card having a circuit board and a number of electronic components mounted on the circuit board, a pair of shells attached on opposite surfaces of the circuit board and a pair of clips securing the card and the shells together. The circuit board forms a grounding pad around three edges thereof. Correspondingly, each shell has an electrically conductive area contacting the grounding pad of the circuit board for preventing electromagnetic interference. The circuit board forms a number of openings, and each shell have a number of projections and apertures corresponding to the openings of the circuit board. The shells are positioned on the card with the projections of one shell received in the openings of the circuit board and apertures of the other shell. The clips secure the card and the shells together.
摘要:
A memory module includes a circuit board on which memory chips are mounted and a metal casing attached to the circuit board for shielding the memory chips. Conductive traces are formed on the circuit board for electrically engaging corresponding portions of the casing to ground the casing. The casing forms a raised portion defining a space for accommodating the memory chips. A recess is formed on the raised portion and a bottom surface of the recess contacts the memory chips to conduct and remove heat from the memory chips. Ventilation holes are defined in the raised portion for facilitating heat removal. The casing forms two positioning pins inserted into corresponding positioning holes defined in the circuit board for properly positioning the casing with respect to the circuit board. The casing also forms two latching arms engaging with corresponding latching holes defined in the circuit board for securing the casing to the circuit board.
摘要:
A thermal interface material is for being applied to the contact surfaces to eliminate the air interstices between the heat dissipating apparatus and the electronic component in order to improve heat dissipation of the electronic component. The thermal interface material includes pentaerythritol oleate as base oil and fillers filled in the pentaerythritol oleate for improving the heat conductivity of the thermal interface material. The pentaerythritol oleate is used for holding the fillers therein and filling the air interstices to achieve an intimate contact between the heat dissipating apparatus and the electronic component. The fillers include aluminum powders, zinc oxide powders and zinc oxide nano-particles.
摘要:
A heat pipe includes a casing, a main wick structure received in the casing, an auxiliary wick structure received in the main wick structure, and a working fluid contained in the casing. The main wick structure is attached to an inner surface of the casing. An inner peripheral surface of the main wick structure and an outer peripheral surface of the auxiliary wick structure cooperatively define a vapor channel. The auxiliary wick structure is hollow, and extends along a longitudinal direction of the casing. A liquid channel is defined in the auxiliary wick structure. Two ends of the auxiliary wick structure are both fixed on the two ends of the casing. The working fluid is saturated in the main wick structure and the auxiliary wick structure.
摘要:
An exemplary method of manufacturing a heat dissipation device includes, firstly, providing a heat pipe including a condenser section having a planar outer surface, and providing a heat sink including a supporting surface defining a guiding line. The guiding line has a width smaller than a width of the outer surface of the condenser section. Next, an amount solder is spread on the supporting surface along the guiding line to form a solder layer on the supporting surface. The solder layer has a size not larger than a size of the outer surface of the condenser section. Then the outer surface of condenser section of the heat pipe is attached to the solder layer on the supporting surface of the heat sink.
摘要:
An electronic device includes a casing, an electronic component received in the casing, and a fixing member. The casing includes a cutout defined in a side wall thereof for assembly or disassembly a heat dissipation member into or out of the electronic device. The fixing member is connected to the top wall of the casing. The fixing member includes an elongated pole, a guiding pole connected to an outer end of the elongated pole and located adjacent to the cutout, and a resilient element at an inner end of the elongated pole and located over the electronic component. The resilient element is compressed and abuts the heat dissipation member when the heat dissipation member is assembled into the electronic device to contact with the electronic component.
摘要:
A thermal interface material includes 100 parts by weight of base oil including amino-modified silicone fluid and at least one of methylphenylsilicone fluid and fluorosilicone fluid, and 800 to 1200 parts by weight of fillers filled in the base oil. The fillers have an average particle size of 0.1 to 5 um and are selected from the group consisting of zinc oxide powder, alumina powder and metallic aluminum powder.
摘要:
A heat dissipation apparatus (10) includes a computer enclosure (110) made of thermally conductive material, a fin assembly (140) secured to the computer enclosure, and a heat pipe (130) having an evaporating section (131) thermally connecting with a heat generating electronic component and a condensing section (132) thermally connecting with the fin assembly. The fin assembly has a bottom surface contacting with a chassis of the enclosure to thereby transfer heat from the fin assembly to the chassis for dissipation. The enclosure forms a pair of clamping members (111) clamping the fin assembly therebetween.