24results about How to "Large heat capacity" patented technology

The invention relates to a heat pool and a heat management system for realizing automobile exhaust waste heat recovery by utilizing fused salt heat transfer and heat conduction. The hot pool comprises a tail gas flowing pipe, a heat conduction oil flowing pipe and a hot pool shell, and a phase-change material fused salt is contained in the hot pool shell. According to the heat pool, on the basis of two media, high-boiling-point heat conduction oil is used for replacing low-boiling-point refrigerants, fused salt media are added, mutual heat exchange of the three media is achieved, corrugated pipes are used for replacing common steel pipes, the problem that circulation of heat exchange media is interrupted due to indirect and random automobile exhaust emission is solved, integration of heat transfer and heat storage is achieved, and the service life of the heat pool is prolonged. The heat transfer and storage capacity is high. The system comprises an air conditioner loop module, an engine loop module, a heat pool heat release loop module, a battery loop module and two five-way valves. The system has various different application scenes, tail gas directly exchanges heat with heat conduction oil in the heat pool heat exchanger to achieve direct heat release, heat in the tail gas is stored in the phase change material, and heat storage and heat exchange are achieved when the system needs to be used.

The invention discloses a voltage reactive power comprehensive regulator topology circuit based on an equivalent electrical distance regulation principle, belongs to the technical field of power distribution network and distributed power supply grid connection, and is used for solving the problems that long feeder line voltage exceeds a lower limit, tail end voltage exceeds an upper limit due to distributed photovoltaic access, and line loss is caused. The device mainly comprises a closed iron core magnetic circuit, a primary parallel excitation winding, a secondary series voltage regulating winding and a secondary parallel reactive compensation winding, wherein the multi-tap secondary coil is connected with the on-load voltage regulation tap switch to form a secondary series voltage regulation winding; the capacitor, the current-limiting reactor and the capacitor fling-cut switch are connected to form a secondary parallel reactive compensation winding; in specific application, the primary winding is connected to a power supply and distribution line in parallel, the secondary series voltage regulating winding is connected between the power supply and distribution line and a regulated object in series, and the secondary parallel reactive compensation winding is connected to the line in parallel through the primary winding.

The invention relates to the field of new energy power generation, and discloses a power semiconductor device and a power module, and the device comprises a substrate, a heat dissipation structure, and a power chip. The heat dissipation structure is arranged on the upper surface of the substrate and connected with the substrate, and the power chip is arranged on the upper surface of the heat dissipation structure and connected with the heat dissipation structure; the heat dissipation structure comprises a sealed frame and liquid metal, the frame is provided with a cavity, and the cavity is filled with the liquid metal. The heat dissipation structure is arranged in the power semiconductor device, the heat dissipation structure comprises the liquid metal, the liquid metal can absorb heat in the melting process while the temperature is kept unchanged, and the heat capacity is equivalent to infinity, so that the overall heat capacity of the power semiconductor device is greatly increased, and the heat time constant is increased; therefore, the heating rate of the power chip can be suppressed when the power is overloaded, and the overload capacity of the module is improved. Compared with a conventional phase change material, the heat conductivity coefficient of the liquid metal is large, the phase change melting rate can be increased, and meanwhile the influence on the steady-state thermal resistance of the power chip is small.

In the current battery cooling structure (100), when one battery cell generates abnormal heat, the adjacent battery cells may emit smoke in a chain reaction. The cooling structure (12) of the vehicle battery (10) of the present invention mainly comprises: a vehicle battery (10); a temperature regulating shell (13) which is arranged on the lower surface of the vehicle battery (10); and a cooling water circulation pipeline (14) which is connected to the temperature regulating shell (13). The temperature regulating shell (13) comprises: a cooling water storage section (35) in which cooling water circulates; and a cooling water storage chamber (36) in which cooling water is retained. According to this structure, when the battery cell (32) generates abnormal heat, the generated heat is quickly discharged to the outside of the vehicle through the temperature regulating shell (13), thereby preventing the adjacent battery cells from emitting smoke in a chain reaction.

The application relates to the battery technical field and provides a control device, a thermal management system and energy storage equipment. The thermal management system comprises a control device, a refrigerant unit and a heat exchange unit. Heat exchange fluid in a heat exchange flow path can exchange heat with refrigerant in a refrigerant flow path. The control device comprises a box body, a control module and a heat exchange structure. The box body forms a placing cavity and an assembly opening. The assembly opening is communicated with the placing cavity. The control module is arranged in the placing cavity. The heat exchange structure seals the assembly opening. The heat exchange structure comprises a fluid channel. The fluid channel is communicated with the heat exchange flow path. The heat exchange flow path is used for heat exchange with a battery monomer. Heat exchange fluid in the heat exchange flow path can flow through the fluid channel, so that the heat exchange fluid exchanges heat with the control module, and the control module is cooled or heated. The heat exchange structure seals the assembly opening. The heat exchange structure can occupy as little space as possible in the placing cavity.

The invention discloses a high-luminous-efficiency LED lighting device and a manufacturing method thereof, and relates to the technical field of lighting, the high-luminous-efficiency LED lighting device comprises a shell, a heat dissipation module used for avoiding light attenuation acceleration is arranged in the shell, the heat dissipation module comprises a ceramic heat dissipation plate and an aluminum substrate which are arranged in the shell, and concave-convex textures are arranged on the heat dissipation surface of the ceramic heat dissipation plate; the aluminum substrate is provided with a multi-channel assembly used for preventing the overall lighting effect from being reduced, and the opening of the shell is provided with an anti-glare assembly used for restraining glare under low light loss. Convection heat transfer is enhanced through concave-convex textures on the surface of the ceramic heat dissipation plate so as to delay light attenuation, the multi-channel assembly independently adjusts driving current through a power management system so as to achieve spectrum refined reconstruction, and the anti-dazzle assembly achieves dazzle suppression under low light loss through microstructure textures on the light-emitting face of a lens and light diffusion particles filled in the center area.

The present invention relates to the technical field of heat-conducting plates, and specifically discloses a heat-conducting plate and a production method thereof, including a heat-conducting substrate, a connecting plate shell, a heat-dissipating plate, an upper heat-conducting shell, a lower heat-conducting shell, a water-cooling plate, a heat-conducting column and a heat-conducting groove, wherein the lower heat-conducting shell is plugged into the inner side of the upper end of the heat-conducting substrate, the heat-conducting column is fixedly connected to the lower end of the lower heat-conducting shell, the heat-conducting groove is arranged on the inner side of the upper end of the heat-conducting substrate, the heat-conducting column and the heat-conducting groove are plug-in connected, and the lower end of the water-cooling plate is plugged into the inner side of the upper end of the lower heat-conducting shell. The heat-conducting plate in this scheme adopts a combination of copper and aluminum. Copper has a high thermal conductivity and can transfer heat quickly. Although aluminum has a slightly lower thermal conductivity, it has a small density and a large heat capacity, which is conducive to the absorption and dissipation of heat. Combining the two can give full play to their respective advantages and achieve efficient heat transfer and dissipation. In addition, the structure between the heat-conducting elements in the heat-conducting plate is more compact, and the thermal conductivity efficiency is also better.

The invention belongs to the technical field of part forming hot working, and discloses a contour self-adaptive metal mold hot-pressing setting machining method which comprises the steps that a metal material with the melting point lower than the hot-pressing temperature of a part to be subjected to hot-pressing setting is selected; putting the metal material into a container, heating and melting; sinking a part to be hot-pressed into the molten metal material; filling gas into the container, and keeping the pressure; and releasing the pressure, and taking out the machined part to finish the hot-pressing shaping. A to-be-machined part is immersed in liquid metal and pressurized, and hot isostatic pressing and shaping treatment of the part are achieved; the defects that a high-precision hot-pressing die is high in design and manufacturing cost and large in pressure equipment investment are overcome, the defect that die pressing parts are sequentially machined to be low in efficiency is overcome, and the problem that hot pressing cannot be conducted on an open micropore structure due to high permeability of gas is solved.

The application provides a phase change heat storage composite superhard abrasive grinding wheel, which comprises a grinding wheel base and abrasive materials arranged on the outer periphery of the grinding wheel base. An annular cavity is arranged on the near-outer end region of the grinding wheel base. A heat dissipation fin is arranged in the annular cavity. The inner end and both side ends of the heat dissipation fin are in contact with the grinding wheel base. The outer end of the heat dissipation fin extends to the outer wall surface of the annular cavity but does not contact the outer wall surface. The outer wall surface of the annular cavity is provided with a layer of foamed metal. A working medium is injected into the annular cavity. The phase change heat storage composite superhard abrasive grinding wheel has the advantages of high heat transfer coefficient, large heat capacity, good structural strength and effective regulation and control of the temperature of the grinding arc region.

The utility model discloses a drying chamber for powder pyrotechnic composition, and relates to the technical field of pyrotechnic composition production, the drying chamber comprises a drying room, a drying mechanism and a dehumidification mechanism, the side wall of the drying room is provided with a room door, the upper end of the drying room is provided with a hot water tank, the drying mechanism is arranged in the drying room, and the dehumidification mechanism is arranged in the drying room. The hot water circulates on the heat dissipation water pipe, the heat dissipation water pipe heats the heat conduction frame, the heat conduction frame heats and dries the firework powder in the charging tray, the drying room is provided with a dehumidification mechanism, and the dehumidification mechanism is used for slowly discharging moist air in the drying room, so that the hot water circulates on the heat dissipation water pipe, the heat dissipation water pipe heats the heat conduction frame, and the firework powder in the charging tray is heated and dried by the heat conduction frame. According to the utility model, the air hole plate and the three layers of dust screens are utilized to slow the air speed, so that only low-speed air flow formed by moisture removal and fresh air supplement in the drying room does not disturb the powder pyrotechnic composition, and the safety of the equipment is improved.

The utility model relates to the technical field of electric heaters, in particular to an electric heater with porous sintering. Comprising a pressure vessel tube; the electric heating tube is axially arranged in the pressure vessel tube; comprising an electric heating outer tube, magnesium oxide powder, an electric heating wire and a guide rod, the electric heating wire of a spiral structure is axially inserted into the electric heating outer pipe, the guide rods are arranged at the two ends of the electric heating wire, and the magnesium oxide powder is filled in gaps between the electric heating outer pipe and the electric heating wire and between the electric heating outer pipe and the guide rods. The porous medium is metal metallurgy powder or metal ball particles; and the filler is filled between the electric heating tube and the pressure vessel tube. The pressure container tube, the electric heating tube and the porous medium are made of high-pressure forged contracted tubes. The electric heater is small in size, high in heat transfer coefficient, heavy in whole electric heating tube weight, large in heat capacity in the heating process, high in temperature impact resistance and particularly suitable for high-pressure, low-flow and high-temperature heating occasions.

Provided is a thermal storage heat exchanger capable of keeping a heat medium warm for a long time and having a compact structure. In a thermal storage heat exchanger 1 for warming or cooling a heat medium H1 in a first pipe 11 by exchanging heat between the first pipe 11 forming a part of the first fluid circuit 2 and a second pipe 12 forming a part of the second fluid circuit 3, the first pipe 11 and the second pipe 12 have a nested structure and the thermal storage heat exchanger includes a first upstream valve 14 configured for opening and closing an inlet port 11a of the first pipe 11 and a first downstream valve 15 configured for opening and closing an outlet port 11b of the first pipe 11.

The utility model discloses a semiconductor integrated MOS tube, and relates to the technical field of MOS tubes. Comprising a plastic package shell and a U-shaped metal cover, a rotating shaft is arranged at the right end of the plastic package shell, a kidney-shaped hole is formed in the left end of the U-shaped metal cover, the U-shaped metal cover is hinged to the plastic package shell through the kidney-shaped hole and the rotating shaft, and an L-shaped heat conduction piece is installed at the inner bottom of the plastic package shell. According to the semiconductor integrated MOS tube, the pins of the MOS tube can be wrapped by the arranged U-shaped metal cover, so that the protection function on the pins is increased, the pins are not easy to deform and damage due to collision in the carrying or transporting process of the MOS tube, and meanwhile, when the MOS tube is installed, the U-shaped metal cover only needs to be folded to the opposite direction of the pins, so that the pins are not easy to deform and damage. And then the U-shaped metal cover is tightly attached to the exposed L-shaped heat-conducting fin, so that through the matching of the L-shaped heat-conducting fin and the U-shaped metal cover, the larger heat capacity and surface area are fully utilized, the heat dissipation efficiency is improved, and the use of the MOS tube is facilitated.

The present invention proposes a device for reducing nitrogen in the flue gas internal circulation of a dimethyl ether gas boiler burner, comprising a primary air duct, a secondary air duct is arranged outside the primary air duct, a fuel outlet pipe of a fuel pipe is arranged inside the primary air duct, the fuel outlet pipe is connected to a graded outlet pipe, a primary fuel outlet and a secondary fuel outlet are arranged on the graded outlet pipe, the primary fuel outlet corresponds to the primary air duct, and the secondary fuel outlet corresponds to the secondary air duct; a smoke return port is arranged on the secondary air duct. The present invention achieves the purpose of dispersing the temperature of the high-temperature zone by inputting fuel in stages and premixing with the air input in stages, thereby reducing the high temperature and the generation of nitrogen oxides; by providing a smoke return port on the secondary air duct, the burned flue gas is swirled into the secondary air duct for re-combustion, thereby further reducing the generation of nitrogen oxides; and the flue gas is recycled, and the heat capacity of the burned flue gas is large, thereby further reducing the combustion temperature and further reducing the generation of nitrogen oxides.

The wheel-mounted brake disc comprises two disc bodies, the two disc bodies are symmetrically arranged on the two sides of a wheel spoke plate and connected with the wheel spoke plate through a plurality of connecting structures, and a heat dissipation cavity is formed between the inner disc face of each disc body and the wheel spoke plate; wherein a plurality of radiating ribs and a plurality of mounting bosses for mounting connecting structures are distributed on the inner disc surface of the disc body along the circumferential direction of the disc body; the distance between the inner disc face and the outer disc face of the disc body is H1, the protruding heights of the installation bosses and the radiating ribs relative to the inner disc face of the disc body are H2, and H1 / H2 is larger than or equal to 1.5 and smaller than or equal to 1.6. According to the wheel-mounted brake disc, the proportional relation between the distance H1 and the height H1 is reasonably set, so that the heat capacity of the disc body is increased while it is guaranteed that the structural strength meets the requirement, product failure caused by high temperature in the application process of the disc body is avoided, and the brake power can meet the application requirement of an urban motor train unit with the running speed reaching 160 km / h.

The invention discloses an environment-friendly thermal insulation building wallboard convenient for mutual clamping, and relates to the technical field of building wallboards, the environment-friendly thermal insulation building wallboard comprises a thermal insulation protection plate, n-shaped positioning clamping blocks are uniformly arranged in the thermal insulation protection plate, a heat collection plate is fixedly connected to the upper surface of the thermal insulation protection plate, and a clamping keel square pipe is arranged on one side of the thermal insulation protection plate; through the design of the circular convection grooves, the convection heat transfer efficiency in the prefabricated heat preservation building wallboard can be remarkably improved, heat can be more evenly distributed in a prefabricated slab, the phenomenon of local overheating or supercooling is effectively avoided, the overall thermal comfort degree of a building is improved, and compared with the prior art, the heat preservation building wallboard has the advantages of being simple in structure and convenient to use. The arrangement of the circular convection grooves is beneficial to balancing the temperature stress in the prefabricated slab, and reduces the risk of material deformation and cracking caused by temperature difference change, so that the structural stability and durability of the building wallboard are enhanced, the service life of the prefabricated slab is prolonged, and the performance stability of the prefabricated slab is improved.

The invention belongs to the technical field of desert greenhouses, and provides a watering-free desert greenhouse which comprises a greenhouse body used for desert ground protection; the mounting mechanism is fixedly arranged at the bottom of the greenhouse body and used for mounting the greenhouse body; the guardrail mechanism is fixedly arranged on the side edge of the shed body and used for protecting the shed body; the functional mechanism is fixedly arranged in the shed body; the pressure reduction mechanism is fixedly arranged on the side wall of the greenhouse body and used for air pressure balance; the greenhouse body is arranged in extreme arid areas such as desert and gobi, the greenhouse body can be used for planting, breeding, storage, refrigeration houses, water desalination and living, the hemispherical structure of the greenhouse body has the functions of recycling water from air and absorbing water underground for cyclic utilization, meanwhile, a full-sealed air positive pressure suspension supporting mode is adopted, no physical support is arranged, and the greenhouse body is convenient to use. The desert greenhouse has the advantages of being low in construction cost, large in heat capacity and efficient and ideal in heat preservation effect, and the single greenhouse of the desert greenhouse is not limited by the area and the size.

The invention discloses a strain clamp crimping structure which sequentially comprises a strain clamp, an aluminum stranded wire, a wedge-shaped wire clamping groove and a steel core from outside to inside in the radial direction. The whole wedge-shaped wire clamping groove is of a circular truncated cone structure, a through hole is axially formed in the wedge-shaped wire clamping groove, and the steel core is sleeved with the wedge-shaped wire clamping groove. A plurality of wire clamping grooves are evenly distributed in the outer surface of the wedge-shaped wire clamping groove, the aluminum stranded wire is divided into an inner part and an outer part after being forked, the inner layer part evenly abuts against the interior of each wire clamping groove, and the other part is evenly distributed on the outer side of the inner layer part. The strain clamp, the wedge-shaped wire clamping groove and the aluminum stranded wire are in oblique compression joint by adopting a forming die forging process; and a gap between the wire clamping groove and the aluminum stranded wire of the outer layer part is filled with filler. The problem of slippage of the steel anchor and the strain clamp can be solved, the heat container can be additionally arranged in the material, the heat resistance of the material is improved, heating of the strain clamp is effectively reduced, meanwhile, the wedge-shaped wire clamping groove can play a role in preventing rainwater and other corrosive liquid from flowing backwards into the clamp, and the influence of corrosion on the strain clamp is reduced.

The present invention provides a disc brake and a brake system, which relates to the field of vehicle machinery, including a mounting support, an active unit mounted on the mounting support, a brake unit and a friction unit connected to the active unit, the active unit is used to drive the brake unit and the friction unit, the brake unit is used to transmit the braking torque, and the friction unit is used to apply the braking torque; and also includes a performance monitoring unit, which is used to monitor the braking performance of the disc brake. The present invention solves the technical problems of insufficient braking torque of floating caliper disc brakes on heavy vehicles, large mass, poor braking torque stability, and failure of disc brakes after a hydraulic system failure.

Disclosed are a secondary battery and a battery pack including the same. The secondary battery includes: a case including an opening; an electrode assembly accommodated in the case; an electrode tab connected to the electrode assembly; a cover plate closing the opening; a terminal coupled to the cap plate; and a current collecting member including a plate portion coupled to the electrode tab such that a current flows between the plate portion and the electrode tab, a terminal coupling portion protruding from the plate portion to be coupled to the terminal such that the current flows between the terminal coupling portion and the terminal, and a thermal capacity increasing portion protruding from the plate portion to be coupled to the terminal. The heat capacity increasing portion protrudes from the plate portion and does not contact the cap plate and the terminal.

A liquid crystal display device is provided, which can prevent light leakage caused by a black display of a projected image of the liquid crystal display device due to a high temperature of a light source, and can display a high-quality image without losing the sense of reality. The device comprises: a light-transmitting liquid crystal display element (4) having two glass substrates (2a, 2b) and a liquid crystal layer (3) sealed between the two glass substrates (2a, 2b); a backlight device (5) emitting light toward one glass substrate (2a) of the liquid crystal display element (4); an emitting-side polarizing plate (6) located on the other glass substrate (2b); an incident-side polarizing plate (7) located on one glass substrate (2a); and a plate-shaped polarizing element (10) having a base layer (8) including a glass substrate and a metal layer (9) having a polarization function and stacked on the base layer (8). The polarizing element (10) is configured such that the base layer (8) and the incident-side polarizing plate (7) are opposed to each other, and the thickness of the base layer (8) is set to be thicker than the thickness of each of the two glass substrates (2a, 2b).

The utility model provides gas oxidation treatment equipment with a continuous alternate heat storage and release structure, which comprises a base, oxidation treatment equipment and a heat storage and release component, and two supporting legs are symmetrically mounted on the lower side of the outer side surface of the oxidation treatment equipment. Compared with the prior art, the heat storage and release device has the advantages that by arranging the heat storage and release assemblies, when the heat storage and release device is used, the heat capacity is increased through the two heat storage and release assemblies, heat can be stored and released more effectively, the energy utilization rate is increased, once one heat storage and release assembly goes wrong, the other heat storage and release assembly can still work continuously, the stability of the device is guaranteed, and the service life of the device is prolonged. By arranging the first heat accumulators and the second heat accumulators, during use, when one of the first heat accumulators or the second heat accumulators accumulates heat, the other heat accumulator can release heat, the continuous treatment process is achieved, heat energy can be effectively utilized, energy consumption can be reduced, and faster temperature adjustment and adaptation to changes of gas flow and components can be achieved through continuous alternate work.

The invention discloses a motor braking energy consumption device and method and electric engineering machinery, which are characterized in that after a power battery is fully charged, the power battery is controlled to output electric energy to an oil pump motor controller, so that an oil pump motor drives an oil pump to operate; therefore, hydraulic oil pumped from the hydraulic oil tank by the oil pump can only overflow back to the hydraulic oil tank through the hydraulic valve, motor braking energy is converted into hydraulic oil heat, the hydraulic oil is conveniently cooled through the hydraulic oil cooling device, motor braking feedback electric energy can be quickly consumed, battery overshoot damage is effectively prevented, and the service life of the motor is prolonged. The hydraulic oil tank of the electric engineering machine is large in size, the thermal capacity of hydraulic oil is large, the braking energy of the motor can be fully consumed, the braking energy consumption requirement of the long-time continuous braking working condition can be met, safety and reliability are higher, an independent hydraulic system of the electric engineering machine is fully utilized, and the cost is reduced. And a special cooling device does not need to be additionally designed.