131results about How to "Optimize heat dissipation structure" patented technology

The present invention provides a highly reliable electric power converter reduced in parasitic inductance.

An electric power converter that includes a capacitor module which has a DC terminal, an inverter which coverts a direct current into an alternating current, and heat release fins which cool the inverter, is constructed so that: the inverter has a power module including a plurality of power semiconductor elements; the power module further has a metallic base, a dielectric substrate provided on one face of the metallic base, a power semiconductor element fixed to the dielectric substrate, and a DC terminal; the metallic base has the heat release fins on the other face; the DC terminal in the power module and the DC terminal in the capacitor module are each formed by stacking flat plate conductors via an insulator; the two positive and negative DC terminals have respective front ends bent in opposite directions; a plane including the bent sections is used as a surface for connecting the power module and the capacitor module; and the insulators overlap each other at the connection surface.

The application of the invention relates to the technical field of electric-pressure cookers, in particular to an electromagnetic electric-pressure cooker. The electromagnetic electric-pressure cooker comprises a base, a bottom cap, an outer cover and a liner, wherein a power supply box is arranged in the base, an electromagnetic heating plate is arranged betweenthe outer cover and the liner, a fan and a heat sink are arranged in the power supply box, a funnel-shaped air guiding opening is arranged in the power supply box, the fan is arranged above the air guiding opening, and the heat sink is tightly leaned against the fan; the electromagnetic heating plate comprises a coil plate, a magnetism-isolating plate and a sensor assembly, an annular large winding area formed by a plurality of concentrically arranged coil slots is formed in an inner cavity of the coil plate and is divided into a plurality of small winding areas and ventilating slots, the small winding areas and the ventilating slots are arranged alternatively, and the slot bottoms of the ventilating slots are lower than the slot bottoms of the coil slots. Compared with the prior art, the electromagnetic electric-pressure cooker disclosed by the application of the invention has the advantages that the heat dissipation structure of the whole electric-pressure cooker is optimized, the whole heat dissipation performance is reinforced, the structure of the electromagnetic heating plate is simplified, and the manufacturing and assembling processes are simpler.

The invention relates to an internal-combustion straight-heating steam engine which takes fuel as energy and is based on the structure of an internal-combustion engine. The internal-combustion straight-heating steam engine consists of a crankshaft 1, a connecting rod 2, a cylinder 3, a piston 4, a sprinkler 5, a heat storage carburetor 6, a water tank 7, a high-pressure hydraulic pump 8, a water filter 9, a return pipe 10, a conduit pipe 11, a water pressure regulator 12, an exhaust valve 13, a spark plug 14, an electrical control assembly 15, a wiring harness 16, an intake valve 17, an oil atomizer 18, an oil pressure regulator 19, an oil delivery pipe 20, an oil return pipe 21, a gasoline filter 22, a high-pressure oil pump 23, an oil tank 24 and a cylinder cover 25, and is characterized in that: the sprinkler is arranged on the cylinder cover, the heat storage carburetor is arranged in the cylinder, and the sprinkler is connected with the water pressure regulator which is connected with the water tank by the high-pressure hydraulic pump. In the expansion stroke, the gas combustion causes the temperature in the heat storage carburetor to rise, the sprinkler sprays right amount of water into the heat storage carburetor, then the water is vaporized, and the steam drives the piston to move so as to output mechanical energy. The internal-combustion straight-heating steam engine is characterized by high efficiency, energy saving, environmental protection, and the like.

The invention relates to a heat tube heat radiator which is used for heat radiation of a computer system. The heat tube heat radiator comprises a first heat radiating unit, a second heat radiating unit and a second heat tube for connecting the first heat radiating unit and the second heat radiating unit, wherein the first heat radiating unit comprises a heat conducting base part, a first heat tube and a plurality of first heat radiating fins; the first heat radiating fins are arranged on the heat conducting base part; one end of the first heat tube is connected with the heat conducting base part; the other end of the first heat tube is in heat-conducting connection with the first heat radiating fins; the second heat radiating unit comprises a fan and a plurality of second heat radiating fins arranged at the air output side of the fan; the first end of the second heat tube is connected with the heat conducting base part; and the second end of the second heat tube is in heat-conducting connection with the second heat radiating fins. In the heat tube heat radiator disclosed by the invention, part of heat of the heat conducting base part is introduced to the second heat radiating unit arranged at an air outlet of the computer system by the second heat tube and is dissipated outwards by the second heat radiating unit. According to the heat tube heat radiator, a heat radiating structure inside the computer is optimized; and the heat tube heat radiator is especially suitable for the computer systems with narrow case spaces.

An internal cooling structure for a motor, which is effective to remove the heat in the rotor to achieve high cooling effect is provided. The motor includes a stator having a stator coil and a stator core, and a rotor positioned on an inner side of the stator core. The rotor includes a tubular rotor spindle on a rotor drive shaft, and the rotor core is fitted to the rotor spindle. A cooling space is defined between the rotor drive shaft and the rotor spindle. An inner peripheral surface of the rotor spindle confronting the cooling space has tapered shape having large diameter at an end portion. An oil feed passage for a cooling oil is defined inside the rotor drive shaft, and a cooling oil discharge port of such oil feed passage is formed in the rotor drive shaft confronting the cooling space.

The invention discloses an outdoor unit of an air conditioner. The outdoor unit comprises an outdoor unit shell, an electric control box and an isolating part, wherein the outdoor unit shell comprises a front panel; the front panel is provided with a front panel air inlet; the electric control box is arranged in the outdoor unit shell, and comprises an electric control box shell, a PCB (Printed Circuit Board) and a radiator; the PCB is arranged in the electric control box shell; the radiator is connected with the PCB; a part of the radiator extends out of the electric control box shell; the isolating part coats the outside of a part, which extends out of the electric control box shell, of the radiator; an isolating part air inlet and an isolating part air outlet are formed in the isolating part; the air inlet of the isolating part is in hermetic fit with the front panel, and the isolating part air inlet is opposite to the front panel air inlet; the isolating part air outlet is communicated with the inside of the outdoor unit shell. The outdoor unit of the air conditioner disclosed by the invention has an improved heat dissipation structure, so that the heat dissipation effect of the PCB in the electric control box is enhanced.

An electrical connector in accordance with the present invention includes an insulative housing defining a mating direction and at least one contact-receiving passage extending along the mating direction, and at lest one conductive contact received in the contact-receiving passage. Each conductive contact includes a mating section, a retaining section extending from the mating section and interferentially retained in the contact-receiving passage, and a mounting section extending from the retaining section. The insulative housing defines at least one heat-radiating passage penetrating through the insulative housing along the mating direction and communicating with the contact-receiving passage.

The invention discloses a CFD software based method for optimizing temperature distribution of a power battery pack. The method comprises a parameter data unit. The method has the technical key point that the parameter data unit is connected with the input end of a one-dimensional CFD simulation calculation unit through a data conversion unit; a CAD data unit of a power battery system is connected with the one-dimensional CFD simulation calculation unit and a three-dimensional CFD simulation calculation unit, and the three-dimensional CFD simulation calculation unit is connected with the one-dimensional CFD simulation calculation unit through a result data processing unit; the output end of the one-dimensional CFD simulation calculation unit is connected with a heating system and heat dissipation system execution unit through the result data processing unit and a MATLAB program control unit in sequence; and the output end of the heating system and heat dissipation system execution unit is connected with the input end of the one-dimensional CFD simulation calculation unit. According to the method, combined simulation calculation is realized through coupled calculation of one-dimensional fluid heat simulation and MATLAB, so that the simulation efficiency is improved and virtual hardware in-loop simulation is realized.

The invention provides an improved heat-dissipating structure comprising a body and a bottom plate, wherein the body is provided with a heat absorption part and a heat dissipation part; the heat dissipating part is provided with a plurality of heat-dissipating fins; the heat absorption part is provided with a cavity; the cavity is provided with a plurality of first guiding parts, a first interconnected pore group and a second interconnected pore group; each first guiding part is composed of a plurality of guiding objects which are arranged at intervals; at least one first channel is formed between the guiding objects; at least one end of the first channel is a free end and is connected with a free area; each first guiding part and each first channel can jointly define an evaporation area,; the interior of each heat-dissipating fin is provided with a second channel and can define a condensation area together with the heat-dissipating fin; the first and second interconnected pore groups are communicated with the evaporation area and the condensation area; the bottom plate correspondingly covers the cavity; and a low pressure end is generated in the condensation area by virtue of a proper pressure-reducing design to form pressure gradient required by driving gas-water circulation in a heat dissipating structure, so that a work fluid can be driven to transfer heat without any capillary structure.

The invention discloses a heat dissipation structure of a disc-type motor and the disc-type motor. The heat dissipation structure of the disc-type motor comprises an end cover, a stator assembly, a first heat conduction glue layer and a cooling structure, wherein a first end cover comprises a bottom plate and an annular side plate, a via hole is formed in the bottom plate, an annular installationbulge is further arranged on an inner surface of the end cover in a protruding way and encircles the via hole, a first cooling passage is arranged in the first end cover, the stator assembly is arranged in the first end cover and sleeves the annular installation bulge, and heat conduction glue is filled between the stator assembly and an inner wall surface of the first end cover and is used for transferring heat of the stator assembly to a first cooling passage of the end cover. By the heat dissipation structure, effective heat dissipation of the heat dissipation structure of the disc-type motor is achieved, the heat dissipation structure is simple and obvious in heat dissipation effect, a traditional mode employing a large amount of screws to fasten is overcome, the process is greatly simplified, and the heat dissipation structure is very suitable for mass production.

The invention relates to a semiconductor device with heat radiation and gain, comprising an integrated metal base board comprising an etching circuit, a dielectric material, a thick copper-placed crystal heat-radiation bonding pad and a plurality of electric pin bonding pads. The semiconductor device is characterized in that a chip can be directly combined with the thick copper-placed crystal heat-radiation bonding pad so that a favorable heat-radiation structure is provided when the chip is operated; and in addition, because the integrated metal base board in the semiconductor device has the dielectric material, the etching circuit can be supported to be independent of the electric pin bonding pads, the semiconductor device can improve design freedom and allow the wiring of finer circuits to strengthen coiling required when electronic assemblies are connected. Meanwhile, because the circuit is supported by the dielectric material, an anti-welding layer can be formed on the circuit to stably place welding assemblies. The invention can effectively solve the problems of poor heat radiation of the traditional packaging plastic base board, insufficient coiling capacity of a lead frame, bad electricity caused by no placement of the welding assemblies and the like.

The invention discloses a tunable semiconductor laser with a Littman-structured outer cavity. The tunable semiconductor laser comprises a base, a supporting base, an optical path adjustment accessory, a raster base, a reflecting mirror base, a sleeve base, a one-dimensional flexible platform and a flexible hinge, wherein the supporting base is fixed on the horizontally-arranged base; the supporting base comprises a bottom plate and a supporting table, wherein the cantilever of the supporting table is arranged on the bottom plate; the optical path adjustment accessory, the raster base and the flexible hinge are fixed on the bottom plate; a vertical mounting plane is arranged on the supporting table; the one-dimensional flexible platform is mounted on the vertical mounting plane; the one-dimensional flexible platform is provided with a mounting part used for mounting the sleeve base; the sleeve base is mounted on the mounting part through a semiconductor cooler; the flexible hinge is hinged with the cantilever; a PZT used for pushing the cantilever to swing around the hinge is also mounted on the flexible hinge; the reflecting mirror base is fixed at the tail end of the cantilever; and a reflecting mirror mounting part is arranged at the upper part of the reflecting mirror base in a cantilever-shaped manner. The tunable semiconductor laser with the Littman-structured outer cavity can realize large-range frequency modulation without mode hopping.

The invention relates to an electrical installation and a radiating circulation system using the same. The electrical installation comprises a shell, a circuit board, an active radiating device and a cover body, wherein the shell comprises a first opening, a first containing space communicated with the first opening, a first side surface and a first bottom surface which is provided with at least one wind inlet; the connection position of the first bottom surface and the first side surface is internally concave to form a concave part which is provided with at least one wind outlet; the circuit board is arranged in the first containing space and is provided with at least one electronic element; the cover body covers on the first opening; the active radiating device is correspondingly arranged on the wind inlet and is used for pumping air from the wind inlet into the shell; and after flowing through the inner part of the first containing space, the air is exhausted from the wind outlet of the concave part for radiating the electronic element. The invention can improve the radiating structure and the radiating approach of the electrical installation for enabling hot air to escape out of the shell in advance and increasing a hot stroke distance, thereby effectively enhancing radiating efficiency.

This invention discloses a printed circuit board to improve dissipating heat structure, suitable for a packing base plate of multiply packing blocks, which comprises a first top layer located on a base plate and relative to a pack base plate, a second top metal layer located on the base plate and on the side of pack base plate; a inner metal layer located in the base plate; a first and second heat conducting bullet located in the base to make the inner metal layer individually linked to the first top layer and the second one. The invention also discloses a electron device to better dissipating structure.

The invention discloses a high-power LED (Light Emitting Diode) phase-change temperature control device with heat pipes. The device comprises a heat sink cavity of which the bottom is provided with an LED package, wherein N gravity assisted heat pipes and N groups of variable thickness fins are arranged in the heat sink cavity; each gravity assisted heat pipe is filled with a working medium; one group of variable thickness fins are radially arranged on the circumference of each gravity assisted heat pipe; each group of variable thickness fins consists of a plurality of variable thickness fins; on the outer side of each gravity assisted heat pipe, a space formed by the heat sink cavity and the corresponding variable thickness fins is filled with a phase-change material of which the melting point is lower than the normal working temperature of the LED package; the outer wall of the heat sink cavity is also provided with a plurality of variable height fins; the variable height fins are arranged along the circumference of the heat sink cavity. According to the device, heat dissipation and temperature control can be effectively performed on an intermittent high-power LED, the defect of low heat conductivity coefficient of the phase-change material is overcome, the use of an energy-consuming cooling scheme such as active cooling is avoided, the complexity of a system is reduced, and the package cost of the high-power LED is reduced.

This invention discloses a printed circuit board to improve dissipating heat structure, suitable for a packing base plate of multiply packing blocks, which comprises a base plate and a dissipating heat, wherein, dissipating sheets are located on the base plate with a first part located under the pack base plate of multi-pack block, and a second part next to the first part and bearing no less than a fin. The invention also discloses a electron device to better dissipating structure.

The invention discloses an induction cooker structure. The induction cooker structure comprises a foundation of a metal shell, an upper cover assembly which is covered on the foundation, and a circuit board and a wire coil which are arranged in an induction cooker body; the upper cover assembly comprises a ceramic plate and an upper cover frame; the induction cooker structure is characterized in that: a plastic tray which is arranged in the foundation is arranged in the induction cooker; the circuit board and the wire coil are fixedly connected with the plastic tray respectively; a flow guide cover plate is integrally formed on the plastic tray through injection molding; and a fan is arranged at the bottom of the tray at one end of the flow guide cover plate and is connected with the circuit board and driven, and an air outlet at the other end of the flow guide cover plate is opposite to heating parts of the induction cooker respectively. In the induction cooker structure, the internal structure of a plastic induction cooker is stimulated in the metal shell by using the plastic tray, so that the heat radiation performance in the induction cooker is improved, the service life of components of a large-power induction cooker is effectively prolonged, and simultaneously, the assembly process during production is simplified.

The invention provides an angle-adjustable engineering geological drilling machine, and relates to the technical field of geological exploration. The angle-adjustable engineering geological drilling machine comprises a supporting mechanism, wherein a connecting seat for supporting a rotating mechanism is mounted on the supporting mechanism; a shell for protecting the rotating mechanism is mountedat the bottom of the supporting mechanism; four universal wheels convenient to move are mounted at the bottom of the supporting mechanism; a connecting mechanism which is rotatably connected is mounted on the supporting mechanism; and a rectangular limiting groove is formed in the middle of the connecting mechanism. A worm gear A is arranged at the bottom of a base, a rotating shaft B of a worm gear is fixedly connected with a connecting plate, when the worm gear rotates, the connecting plate can be driven to rotate, thus, the rotating shaft B drives the connecting plate to rotate to adjust the circumferential rotating angle of a drilling mechanism, and the drilling mechanism can conveniently sample different positions; and a worm gear B is arranged on one side of a connecting rod of a polished rod, thus, the connecting rod rotates to drive the polished rod to swing, and the swinging angle of the drilling mechanism is adjusted.

The invention relates to a silent type diesel generator set mainly comprising an engine, a generator, a silencing cover and a set chassis. An axial flow fan sucking cold air in the external environment into the silencing cover is arranged close to the inner side of a first air inlet. The axial flow fan directs the sucked cold air to a cooling device arranged on the inner side of the first air outlet for cooling. The cooling device is connected with a cooling liquid sleeve of the engine through a water inlet pipe and a water outlet pipe to cool the engine. A silencer is arranged above the engine and located close to a second air outlet. An air inducing shield which induces air from the horizontal direction to the vertical direction is arranged at the position of an outlet of the engine. An upper end air outlet of the air inducing shield is connected with an air director through an air guide channel, and air is guided to the silencer through the air director for cooling. According to the silent type diesel generator set, the cooling structure in the diesel generator set is improved, and the contradiction between silencing and cooling of the diesel generator set is effectively relieved.

The invention relates to a concave and convex spline type tubular rubber shock absorber with an interval expansion variable layer. The concave and convex spline type tubular rubber shock absorber comprises a spline type outer ring, a spline type inner ring, the interval expansion variable layer and a rubber layer; the interval expansion variable layer is arranged between the spline type outer ring and the spline type inner ring, and the spline type outer ring, the spline type inner ring and the interval expansion variable layer are both bonded with the rubber layer in a vulcanization manner; and evenly-distributed metal particles and metal wires are arranged in the rubber layer. The radial tension and compression deformation amount and the shear deformation amount are increased, the structural damping loss factors of the shock absorber are improved, the radial shock absorption effect of the shock absorber is improved, the heat dissipation effect of rubber is improved, and the service life of the rubber shock absorber is prolonged. The inner ring and the outer ring are both of spline type structure, the circumferential torsional deformation amount and the shearing deformation amount are increased, and therefore the structural damping loss factors of the shock absorber are improved, and the circumferential shock absorption effect of the shock absorber is improved.

The invention discloses an efficient surface-mounted triode with a good heat dissipation structure and belongs to the technical field of surface-mounted triodes. The efficient surface-mounted triode comprises a packaging outer shell, a wear-resistant anti-cracking assembly and a heat dissipation assembly; pins are installed at the lower portion of the packaging outer shell; a sealing waterproof assembly is fixed to the outer sides of the joints of the pins and the packaging outer shell; the wear-resistant anti-cracking assembly is fixed to the outer side of the packaging outer shell; a fixingplate is integrally connected to the upper portion of the packaging outer shell; a threaded hole is formed in the middle of the fixing plate; a main body chip is installed in the middle of the interior of the packaging outer shell; a reinforced protection assembly is installed on the outer side of the main body chip; conductive layers are welded to the joints of the main body chip and the pins; and insulating layers are fixed to the upper side and the lower side of the main body chip respectively. According to the efficient surface-mounted triode of the invention, the sealing waterproof assembly is adopted, the connecting positions of the pins and the packaging outer shell can be conveniently prevented from being affected with damp and aged; and the heat dissipation assembly is adopted, sothat the efficient heat dissipation of the surface-mounted triode is facilitated.