11results about How to "Avoid heat concentration" patented technology

The utility model discloses a conductive contact finger and a wind generating set, the conductive contact finger comprises a first conductive connecting surface, a second conductive connecting surface and a convex part, and the top end of the convex part is provided with at least one through hole. The first conductive contact surface and the second conductive contact surface of the conductive contact finger are positioned on the same plane and are conductively connected with the same structure, and the convex part is conductively connected with another structure, so that during actual use, the first conductive contact surface, the second conductive contact surface and the convex part form a stable approximately triangular structure, and the conductive contact finger has certain elasticity; the conductive contact finger meets the requirement of elastic conductive contact, is good in shock resistance, guarantees the contact stability of the conductive contact finger and other structures, improves the overall safety of equipment, facilitates heat dissipation through the through holes formed in the convex parts, avoids the problem of heat concentration caused by large-area contact when the conductive contact finger is connected with other structures, reduces the failure rate, and improves the reliability of the equipment. The reliability is high and the service life is long.

The present application relates to the technical field of welding equipment and welding process, and discloses a flange web plate welding system and a welding method, which comprises a support displacement mechanism, a first welding robot and a second welding robot fixedly arranged on the outer sides of the two ends of a tower pole respectively, a web plate automatic positioning device, a visual measurement system and a control system. The control system performs a three-stage welding process: in the first welding stage, all the web plates are completed in a batch symmetrical manner; in the second welding stage, intermittent annular welds are completed; in the third welding stage, before welding continuous annular welds, the root gap distribution is scanned by a weld tracking sensor, and a variable parameter welding strategy is dynamically generated according to the gap distribution to realize variable gap adaptive welding. The present application solves the problem of difficult manual positioning of the web plate, realizes full-circle welding in a half-circle working space, effectively controls welding deformation, and significantly improves welding quality and production efficiency.

The utility model discloses a kind of multi-cavity injection molding components for motor heat dissipation, including motor component one and motor component two, and the outer surface of motor component one and motor component two is equipped with heat dissipation fin assembly. The utility model distributes multiple ventilation chambers in motor component one and motor component two, and three-dimensional heat dissipation path is formed by multi-cavity design, avoids heat concentration by partition design, increases heat dissipation area, motor component one and motor component two are integrally injection molded using carbon fiber composite material, reduce production cost and reduce weight, the positioning boss set ensures close contact with motor, accelerates heat dissipation, the heat conduction plate set on the outside of motor component one and motor component two penetrates ventilation chamber, can quickly conduct the heat of motor heat source to each cavity, avoid local overheating, and the heat dissipation fin set increases surface area to improve heat dissipation efficiency.

The invention discloses a biogas cracking hydrogen production coil reaction device, and belongs to the technical field of biogas hydrogen production devices. Comprising a purifier, a raw material gas preheater, a reformer, a conversion coil pipe, a mixed gas heater and a steam generator, the purifier is used for treating biomass biogas, the preheater is used for heating raw material gas, the reformer carries out cracking hydrogen production through the spiral coil pipe and a catalyst, and the steam generator generates water vapor through flue gas waste heat. A traditional straight pipe structure is replaced with the conversion coil pipe structure, the conversion coil pipe has a large reaction area under the same height, heat transfer and reaction control can be more effectively carried out in the hydrogen production process, the equipment height is reduced, the equipment size is reduced, and miniaturization design is achieved.

This application discloses a dual-channel heat collection plate heat dissipation structure for radar signal simulation equipment. By designing a dual-channel heat collection plate and optimizing the internal structure of the equipment, flexible arrangement and efficient heat dissipation of the radar signal simulation equipment are achieved. The equipment housing is divided into three independent spaces: a front compartment, a middle compartment, and a rear compartment. The heat-generating modules in each compartment conduct heat through the left and right heat collection plates, ultimately achieving forced heat dissipation through a fan. The heat collection plate adopts a sandwich structure, welded together from a shell with heat dissipation fins and a cover plate. After welding, an independent air duct is formed, achieving sealed heat dissipation. Part of the heat from the transceiver components is conducted to the equipment housing through the antenna unit, while another part is dissipated through the fan to the front compartment and then through the heat collection plate. This dual heat dissipation path meets the heat dissipation needs of the antenna transceiver unit. This invention solves the problems of difficult heat dissipation of electronic modules, limitations in equipment size, and heat concentration in the antenna transceiver unit in existing technologies.

The invention discloses a GaN trench switch device and a preparation process thereof, and relates to the technical field of semiconductors, the GaN trench switch device comprises drain electrode metal, a GaN structure layer, a grid electrode metal layer and a source electrode metal layer, the drain electrode metal, the GaN structure layer, the grid electrode metal layer and the source electrode metal layer form a longitudinal structure, and the drain electrode metal, the GaN structure layer, the grid electrode metal layer and the source electrode metal layer form a vertical structure. The GaN structure layer comprises an n-type GaN layer; the drain metal and the gate metal are arranged at the two ends of the GaN structure layer respectively, and the source metal layer is arranged on the side, away from the drain metal, of the gate metal. Namely, the n-type GaN layer can enable electrons to be transversely and uniformly distributed on the GaN structure layer, heat concentration in the GaN trench switch device is avoided, the on resistance of the GaN trench switch device is reduced, the power density of the GaN trench switch device is improved, and the voltage endurance capability of the GaN trench switch is further improved.

The present invention discloses an intelligent temperature-controlled high-concentration negative ion hair dryer, which relates to the field of negative ion hair dryers, including a hair dryer body and a mounting mechanism, wherein the hair dryer body is an inverted funnel-shaped structure, a filter screen is fixedly provided on the top of the hair dryer body, and an electric heating screen is fixedly provided below the filter screen. The hair dryer body in the present invention is used in conjunction with the mounting mechanism, and the mounting mechanism sets the blowing holes on the hair dryer body downward to achieve downward vertical blowing, and does not require manual lifting of the hair dryer body over the head for blowing, making hair blowing more labor-saving and comfortable. At the same time, since the blowing holes are arranged in a ring shape at the bottom of the hair dryer body, the wind will be blown out vertically downward in a ring shape, which can not only make the hair more docile, but also dry the hair roots first, while avoiding heat concentration on the top of the head with sparse hairline, and avoiding hair loss caused by scalp damage.

The invention provides a connector female seat, which comprises a rubber core part and a terminal part, a plurality of terminal grooves are arranged in the rubber core part, the terminal grooves penetrate through the front end surface and the rear end surface of the rubber core part along the axis direction, the rear end surface of the rubber core part extends backwards to form a partition plate, and terminals of the terminal part are respectively arranged in the terminal grooves. The partition plate is used for isolating the tail parts, used for wiring, of the adjacent terminals, and positioning grooves are formed in the side surfaces, corresponding to the tail parts of the terminals, of the partition plate. By optimizing the terminal layout and the fixing mode, the problems existing in the welding and injection molding process of a traditional connector female seat are solved, and the overall performance and the production efficiency of the connector are improved.

The utility model belongs to the field of cosmetic processing technology especially relates to a cosmetic raw material mixing tank with heating and heat preservation function, include: tank body and controller, the tank body is composed of heat preservation shell and mixing liner, set up heating cavity between heat preservation shell and mixing liner, the inside installation of heating cavity is equidistance arrangement's heating pipe, the inside installation of mixing liner is stirring mechanism, the outer surface fixed communication of tank body has water inlet valve. This cosmetic raw material mixing tank with heating and heat preservation function has adopted the unique jacketed structure, forms heating cavity between heat preservation shell and mixing liner, and is evenly arranged multiple heating pipes in it, and this design will traditional point or surface contact heating change into the surrounding type, three -dimensional heat radiation and heat conduction to whole mixing liner, combines the feedback and control of temperature sensor, can realize accurate constant temperature control, ensures that the tank material is heated evenly.

The invention discloses electronic equipment, and belongs to the technical field of electronic equipment, the electronic equipment comprises a loudspeaker, a frame body, a rear cover and a heat conduction part, the rear cover is connected with the frame body, the loudspeaker is installed on the frame body, the heat conduction part is clamped between the loudspeaker and the rear cover, and the heat conduction part is in heat conduction connection with the loudspeaker; the rear cover is provided with a first sound guide channel, the heat conduction piece is provided with a through hole, and the first sound guide channel is communicated with the loudspeaker through the through hole; in a plane perpendicular to the thickness direction of the rear cover, at least one part of the projection of the loudspeaker is located in the projection of the heat conduction piece, and one part of the projection of the heat conduction piece is located outside the projection of the loudspeaker.

The utility model relates to the technical field of kiln tail dust removal, in particular to an anti-condensation kiln tail dust removal device. According to the technical scheme, the anti-condensation kiln tail dust removal device comprises a pipe body, heat storage fins, a filter screen and a smoke dust guide pipe, the heat storage fins are arranged in the pipe body, an air guide piece is arranged at the position, located above the heat storage fins, in the pipe body, the filter screen is arranged at the position, located above the air guide piece, in the pipe body, and the smoke dust guide pipe is arranged in the pipe body. A filter screen is arranged in the pipe body, a pulse gas pipe is arranged above the filter screen in the pipe body, a smoke outlet and a gas inlet are formed in the upper end and the lower end of the pipe body respectively, a smoke outlet is formed in one side of the pipe body, and a smoke guide pipe is installed at the smoke outlet of the pipe body. The dewing prevention device has the remarkable advantage in the aspect of dewing prevention, meanwhile, the dewing prevention device is excellent in smoke treatment effect, convenience in cleaning and maintenance, reasonability in structural design and the like, and is environment-friendly equipment which is excellent in performance and convenient and fast to operate.