Abstract: A heat dissipation device assembly structure includes a heat dissipation unit and at least one fastening member. The heat dissipation unit has a bottom face and a locating section. The locating section is formed with at least one channel in communication with the bottom face. The fastening member is assembled on the bottom face. The fastening member has at least one latch section correspondingly inserted in the locating section. The fastening member further has at least one locking section on one side of the fastening member, which side is distal from the bottom face. The fastening member can be quickly assembled with the heat dissipation unit by means of inserting the latch section into the locating section of the heat dissipation unit. The heat dissipation device assembly structure has higher heat dissipation efficiency and is free from welding process so that the welding cost is saved.

Abstract: A heat dissipation device assembly structure includes a heat dissipation unit and at least one fastening member. The heat dissipation unit has a bottom face and a locating section. The locating section is formed with at least one channel in communication with the bottom face. The fastening member is assembled on the bottom face. The fastening member has at least one latch section correspondingly inserted in the locating section. The fastening member further has at least one locking section on one side of the fastening member, which side is distal from the bottom face. The fastening member can be quickly assembled with the heat dissipation unit by means of inserting the latch section into the locating section of the heat dissipation unit. The heat dissipation device assembly structure has higher heat dissipation efficiency and is free from welding process so that the welding cost is saved.

Abstract: A thermal module and a manufacturing method thereof. The thermal module includes a radiating fin assembly and a base seat. The radiating fin assembly has at least one folded edge on one side. The folded edge has at least one connection section. The base seat has at least one fixing section corresponding to the connection section. The fixing section is latched with the folded edge. A pressure is applied to the fixing section to plastically deform the fixing section and press the fixing section against the folded edge so as to securely connect the radiating fin assembly with the base seat. The thermal module can be assembled without welding so that the working time is shortened and the manufacturing cost is lowered.

Abstract: A centrifugal fan with a multistage impeller includes a hub and a multistage impeller having at least two stages of blade assemblies. The hub has a top section and a circumferential section extending from the top section. At least one extension section outward extends from the circumferential section. The multistage impeller is connected with one end of the extension section. The multistage impeller includes a first-stage blade assembly and a second-stage blade assembly. The second-stage blade assembly has a diameter larger than that of the first-stage blade assembly. The centrifugal fan can be installed in an application environment with limited space without being interfered with by peripheral parts. Also, the centrifugal fan is able to provide an optimal flow and wind pressure at the same rotational speed to lower the load on the motor and reduce the noise.

Abstract: A heat sink includes a radiating base being provided on one face with perpendicularly extended radiating fins, and on another opposite face with a protruded seat. Two opposite lateral sides of the radiating base are outward extended, from two upper longitudinal edges of the protruded seat. A first space is formed between any two adjacent ones of the radiating fins, and at least one through hole is formed on the radiating base to communicate the first spaces with spaces formed below the radiating base at two outer sides the protruded seat. The heat sink is mounted to a heat-producing element. Ambient cold air can flow downward and enter the spaces below the radiating base, and then flow upward through the at least one through hole into the first spaces to carry away heat transferred to the radiating fins and thereby upgrade the heat dissipation efficiency of the heat sink.

Abstract: A heat sink includes a rib section and a plurality of radiating fins spaced on a top face of the rib section. The radiating fins are perpendicularly protruded from the top face of the rib section and orthogonally extended across the rib section with a near middle bottom portion of each of the radiating fins in contact with the top face of the rib section, such that two lateral portions of each of the spaced radiating fins are outward protected from two opposite sides of the rib section to define two comb-shaped air paths. Cold air can flow to spaces below the comb-shaped air paths, and hot air carrying the heat radiated from the radiating fins can upward flow through the comb-shaped air paths and diffused outward as a result of natural air convection around the heat sink. Therefore, the heat sink can have largely upgraded heat dissipation efficiency.

Abstract: A reinforced thermal module structure includes a radiating fin assembly, a radiating base, and at least one heat pipe. The radiating fin assembly consists of a plurality of stacked and spaced radiating fins, each of which has at least two notches. The heat pipe includes a conducting section in contact with the radiating base, and a heat-dissipating section extended through the radiating fin assembly to connect thereto. The radiating base has at least two support arms for correspondingly engaging with the at least two notches on the radiating fins. The support arms help in enhancing the structural strength, heat conducting efficiency, and heat-dissipating effect of the thermal module structure.

Abstract: The present invention discloses an airflow capture booth with single-plate windbreak comprising an extracting means for extracting polluted air having an opening for air contamination extracting through and a crosswind device for simulating crosswind, the improvement comprises that said crosswind device having a single-plate windbreak perpendicular to an airflow direction of said crosswind having a specific distance to said opening of said extracting means for forming a capture zone, wherein the airflow of said capture zone is not easy to be shed and is extracted mostly by said extracting means.

Abstract: The present invention discloses an airflow capture booth with single-plate windbreak comprising an extracting means for extracting polluted air having an opening for air contamination extracting through and a crosswind device for simulating crosswind, the improvement comprises that said crosswind device having a single-plate windbreak perpendicular to an airflow direction of said crosswind having a specific distance to said opening of said extracting means for forming a capture zone, wherein the airflow of said capture zone is not easy to be shed and is extracted mostly by said extracting means.