35results about How to "Reduce operating temperature rise" patented technology

The invention discloses a vacuum pressure F-grade heating solvent-free solvent impregnated resin, comprising the following compositions by weight portion: 100 portions of an epoxide resin, 2 to 4 portions of a stabilizing agent, 80 to 120 portions of fluid estolide and 10 to 20 portions of a plasticizer, wherein, the epoxide resin is a bisphenol A-type expoxide resin, the epoxide resin and the stabilizing agent are mixed into a composition A, the fluid estolide and the plasticizer are mixed into a composition B, and 100 portions of the composition A and 80 to 120 portions of the composition B are mixed. The composition A and the composition B are respectively packaged and stored and are used after mixed according to the ratio of 1 to 0.8-1.2. The solvent impregnated resin is used together with special dry mica tape and special moderate-resin mica tape which contain a curing accelerating agent and are matched with the solvent impregnated resin specially. The vacuum pressure F-grade heating solvent-free solvent impregnated resin has the advantages of innocuousness, innocuity, good thermal state mechanical intensity and low possibility of deformation.

The invention provides a superconductive radiating motor, which greatly improves cooling capacity and is high in power density, small in size, light in weight and high in efficiency. The superconductive radiating motor comprises a shell part, a stator part and a rotor part, wherein the shell part comprises a pipeline-shaped shell; and the stator part and the rotor part are positioned in an inner cavity of the shell. The superconductive radiating motor also comprises a superconductive radiating liquid cooling system, wherein a liquid storage cavity is formed in a body wall of the shell; the superconductive radiating liquid cooling system comprises a radiator, a radiating fan and a connecting pipe for connecting the radiator and the liquid storage cavity; heat superconductive liquid is positioned in a closed channel which is formed by the liquid storage cavity, the radiator and the connecting pipe; the heat superconductive liquid cooling system comprises a liquid storage box which is communicated with the radiator and stores the heat superconductive liquid; the inner cavity of the shell has a front-end opening and a rear-end opening; a front end cover closes the front-end opening; and a rear end cover is arranged at the rear-end opening of the shell and closes the rear-end opening.

The invention provides a busbar mounting method without a switching structure. which comprises the following steps of forming a housing by a cover plate and a side plate; forming segmented busbars by built-in phase wire conductors; between the busbar segments, connecting the phase wire conductor with a conductor connecting plate of a joining device, and directly connecting the side plate with the joint pressing plate of the joining device for fixing. Side plate connectors are saved, and low number of components is realized. High heat radiation efficiency and low operation temperature increase of a busbar system are realized. Main components are one-time extruded section bars. The busbar mounting method further has advantages of simple production and manufacturing process, low labor intensity of workers, high connection reliability, high convenience in mounting and transportation, high corrosion resistance, small weight and attractive appearance.

The invention discloses a high-heat-conductivity insulating structure and a manufacturing method thereof. The high-heat-conductivity insulating structure comprises an iron core and an electromagnetic wire embedded in the iron core, a heat conducting film, a mica tape and an alkali-free glass tape are sequentially arranged between the electromagnetic wire and the iron core, an opening of the iron core is sealed by a slot wedge, and an inner gap of the iron core is provided with dipping varnish by means of dipping. The high-heat-conductivity insulating structure has the advantages that due to the fact that the heat conducting film, the mica tape and the alkali-free glass tape are sequentially arranged between the electromagnetic wire and the iron core to form a heat conducting passage in the whole insulating structure, internal heat conducting efficiency of a motor is improved, heat in the motor can be transferred to a cooling medium more quickly, and accordingly operation rise of the motor can be lowered to realize cooling of an insulation operation environment so as to prolong insulation service life of the motor.

The invention discloses a motor self-driven cooling structure based on cooling liquid. A cooler is installed at the top of a shell; a shaft-driven outer fan is driven by a rotary shaft to rotate coaxial to the rotary shaft; a sealing hood penetrates through the inner diameter of a stator iron core and extends into the cooler, and is isolated from the space of a rotor iron core in the shell to forma closed space; the cooling liquid is injected into the sealing hood; vent pipes are located at the axial outer side of the stator iron core, and the two ends of each vent pipe are communicated withthe space of the rotor iron core; several subplates are connected between the rotary shaft and the rotor iron core, and iron core axial ducts are formed by the spaces among the subplates; an air gap is formed between the rotor core and the inner circumferential face of the sealing hood; an inner fan is used for generating power airflow in a rotor circulating air path composed of the space of the rotor iron core, the vent pipes, the iron core axial ducts, rotor iron core radial ducts and the air gap. The motor self-driven cooling structure has a stator cooling loop and a rotor cooling loop which are independent from each other, but both the stator cooling loop and the rotor cooling loop absorb heat through the cooling liquid, the using efficiency of the cooling liquid is improved, the costis lowered, and the cooling efficiency is improved.

The invention discloses an F-grade heat-resisting solvent impregnated resin suitable for vacuum pressure and normal temperature. The F-grade heat-resisting solvent impregnated resin is prepared by mixing 100 portions of a composition A and 80 to 120 portions of a composition B, wherein, according to weight portion, the composition A is prepared by mixing 60 to 90 portions of I-epoxide resin, 10 to 40 portions of II-epoxide resin and 2 to 4 portions of a stabilizing agent; the composition B is prepared by mixing 80 to 120 portions of fluid estolide and 10 to 20 portions of a plasticizer; and the I-epoxide resin is a bisphenol A-type expoxide resin. The composition A and the composition B are respectively packaged and stored separately and are used by mixing according to the ratio of 1 to 0.8-1.2. The solvent impregnated resin is used together with special dry mica tape and special moderate-resin mica tape which contain a curing accelerating agent and are matched with the solvent impregnated resin specially. The F-grade heat-resisting solvent impregnated resin has the advantages of cleanliness, environment protection, rapid high temperature solidification, small mass loss in the curing process and high purity quotient of each component.

The invention discloses a low-temperature and shock-resistant semiconductor package structure which comprises a functional device, a packaging layer and a cooling and heat conduction device. According to the scheme, direct stress of the packaging layer will not be borne by a chip, so the chip can bear high shake stress; in addition, thanks to auxiliary heat dissipation of heat dissipation fins and quick heat conduction of elastic heat conduction colloids, it can be guaranteed that a semiconductor product is in a low operating temperature rise state.

The invention relates to a high-efficiency energy-saving electric motor with an internal shielding ventilation opening. Multiple ventilation openings are processed on the rear end cap of the fan end of the electric motor. An internal shielding assembly can be embedded in the ventilation openings. Internal and external fans are coaxially installed inside and outside the rear end cap. The forced air cooling system of the overall electric motor is formed by motor fan covers, the internal and external fans and the rear end cap with the inlet and outlet ventilation openings. Compared with another patent technology named "high-efficiency energy-saving electric motor with forced inner circulation heat radiation", temperature rise of operation at full load is reduced for 10K on the basis that other parameters are unchanged or slightly enhanced.

The invention discloses a device for increasing the capacity of an oil-immersed transformer. The device comprises twelve groups of finned radiators, six cooling fans, and a control box. The finned radiators are arranged on a return pipe of a transformer body. Eight groups of finned radiators are located at the high-voltage side of the transformer body, and four groups of finned radiators are located at the low-voltage side of the transformer body. The cooling fans are arranged on the finned radiators. Four cooling fans are arranged on the finned radiators on the high-voltage side of the transformer body, and two cooling fans are arranged on the finned radiators on the low-voltage side of the transformer body. The control box is positioned outside the transformer body and is connected witha motor of the cooling fans. The invention discloses a method for increasing the capacity of an oil-immersed transformer. The transformer has the beneficial effects that on the premise that the transformer body is kept unchanged, only the cooling system equipment of the transformer body is replaced. Therefore, the capacity increasing requirement of the transformer is met.

The invention relates to a box-type high-voltage power capacitor, comprising a shell, a core and a compensating heat dissipation device; the shell is a hollow structure made of a stainless steel plate, and the gap inside is filled with an insulating impregnating agent; The core is mounted in the shell and immersed in the insulation impregnating agent; A sleeve connected with the core is arranged on the top of the shell; The compensating heat dissipation device is mounted on the outer side wall of the shell, and expands or contracts according to the thermal expansion and cold contraction of theinsulating impregnating agent to compensate for volume change, and also causes the circulating flow of the insulating impregnating agent to accelerate the dissipation of heat inside the shell. The invention has the advantages that the stainless steel plate is directly used on the capacitor instead of a common steel plate, and the surface treatment cost can be saved; the compensation heat dissipation device replaces an expander with more solder joints, reduces the possibility of oil leakage, improves the reliability of the capacitor, reduces the operation temperature rise of the capacitor andprolongs the service life of the capacitor.

The invention relates to a bus duct. A casing composed of side plates and a cover plate is internally provided with a phase wire conductor, segments of the bus duct are connected through joint devices, joint bolt end portions of the joint devices, joint nuts and joint pressure plates among outer-most-layer insulation baffle plates are formed by section bars through one-time pultrusion molding, cross sections of the section bars are generally C-shaped structures, a wing-edge outer side of the C-shaped structures is provided with multiple heat radiation reinforcement ribs, an inner side is provided with limit grooves for limiting side plate connection members, right-angle connection portions of long edges and short edges of the side plate connection members are provided with reinforcement ribs projecting outwards, and centers of the reinforcement ribs have thread connection holes. The bus duct is advantaged in that disc-shaped springs are clamped in inner chambers of the C-shaped structures of joint device pressure plates, width dimensions of opening portions of the C-shaped structures of the joint device pressure plates mutually adapt to width dimensions of the joint nuts, materialsof the joint device pressure plates and the side plate connection members are aluminum alloy, the quantity of parts is small, connection is reliable, mounting and transportation are convenient, corrosion resistance performance is good, weight is light, and appearance is attractive.

The invention relates to a coreless permanent magnet power generation and electric device. The power generation device comprises a shaft body, a shell and a power generation component. The shell and the shaft body can relatively rotate. The power generation component comprises a rotor component and a stator component. The rotor component comprises a magnet yoke and magnets which are installed on the magnet yoke. The stator component comprises an integrated coil. The magnet yoke comprises at least one cylindrical part which is coaxial with the shaft body and at least one dish-shaped part which is perpendicular to the shaft body. The integrated coil comprises at least one cylindrical part which is coaxial with the shaft body and at least one dish-shaped part which is perpendicular to the shaft body. The cylindrical parts of the magnet yoke and the integrated coil are opposite, and the opposite surfaces of the cylindrical parts of the magnet yoke are provided with magnets. The dish-shaped parts of the magnet yoke and the integrated coil are opposite, and the opposite surfaces of the dish-shaped parts of the magnet yoke are provided with magnets. The coil is integrated so that copper loss can be reduced, damping and iron loss can be eliminated, driving power can be eliminated, thermal loss can be reduced, the size is small, the weight is low, the material can be saved, the speed regulation range is wide and the precision is high.

The invention discloses an internal circulation oil-filled submersible motor with a double-layer shell, and relates to the technical field of submersible motors. The submersible motor specifically comprises a fully-enclosed outer shell and an inner shell coaxially fixed in the outer shell, wherein the inner shell is provided with a hole leading to an inner cavity of the outer shell, the front endand the rear end of the outer shell are respectively provided with a front end cover and a rear end cover, the front end cover is provided with a front thrust bearing, the rear end cover is provided with a rear thrust bearing, a motor rotating shaft is arranged between the front thrust bearing and the rear thrust bearing, the motor rotating shaft is arranged in the inner shell of the motor, one end of the motor rotating shaft penetrates through the front end cover, a rotor is fixed in the middle of the motor rotating shaft, a stator is arranged in the inner shell of the motor, the stator is arranged at the outer end of the rotor and corresponds to the rotor in position, and a heat dissipation module is arranged in the motor to drive hydraulic oil to circularly flow between the inner shelland the outer shell of the motor. By adopting the motor double-layer shell structure and the motor heat dissipation module, an additional power device does not need to be installed, the circulation flow of hydraulic oil in the motor is realized, and the heat dissipation capability of the motor is enhanced.

The invention relates to a coreless coil and a motor with the same. The coreless coil comprises multiple layers of coils installed in an air gap space between a stator and a rotor of the motor. The multi-layer coil comprises at least two single-layer coils, wherein the single-layer coils are coreless coils. The axial center lines of all the layers of coils are not on the same straight line, and the corresponding induction counter electromotive forces of all the layers of coils are the same and used for restraining circulation of the multi-layer coil. Compared with the prior art, the coreless coil has the advantages that the operation loss and temperature rise of the motor are reduced.

The invention relates to the technical field of chips, and particularly relates to a chip packaging structure and a vehicle. The chip packaging structure comprises a first electric conduction and heatconduction piece, a second electric conduction and heat conduction piece and a first electric conduction and heat conduction elastic piece, wherein the chip is located between the first electric conduction and heat conduction piece and the second electric conduction and heat conduction piece, and the first electric conduction and heat conduction elastic piece is located between the first electricconduction and heat conduction piece and the chip. According to the invention, a power device or module adopts double-sided pressure elastic contact, so that on the one hand, the packaging structurecan form double-sided heat dissipation, and the working condition temperature rise of the power chip and derived devices and modules thereof is further reduced; and on the other hand, a wiring mode ina bonding process is avoided, parasitic inductance in a device or a module is reduced, and the performance of the chip is improved, so that the overall performance is improved.