24results about How to "Increase temperature difference" patented technology

The utility model provides an immersed liquid-cooled battery pack, relates to the technical field of battery packs, and aims to solve the problem that the temperature difference consistency among high-power battery cells in the battery pack is not good enough due to the fact that a liquid-cooled plate cannot uniformly dissipate heat around the battery cells, and the immersed liquid-cooled battery pack comprises a plurality of battery cells and a box body, a liquid inlet, a liquid cooling mounting cavity and a liquid outlet which are sequentially communicated are formed in the box body and used for circulating cooling liquid, the battery cells are arranged in the liquid cooling mounting cavity and immersed in the cooling liquid, the battery cells are arranged to form a liquid cooling channel, the liquid inlet is located at the first end of the liquid cooling channel, and the liquid outlet is located at the second end of the liquid cooling channel. The liquid outlet is located at the second end of the liquid cooling channel, part of the liquid cooling channel is located among the battery cells, and part of the liquid cooling channel is located on the outer sides of the battery cells.

The invention provides a wafer bearing device temperature control method and semiconductor process equipment. The method comprises the following steps: when a process chamber executes a process task, obtaining a first temperature of a wafer bearing device; if the first temperature meets the preset fluctuation condition, the process chamber is controlled to execute the process task according to the temperature control mode; in the temperature control mode, the heating device is controlled according to the second temperature, the heating temperature and a preset temperature threshold value, so that the temperature of the wafer bearing device is kept stable. In the control mode, when the process chamber executes the process task, when the first temperature of the wafer bearing device meets the preset fluctuation condition, the heating device is controlled through the temperature control mode, so that the temperature of the wafer bearing device is kept stable, the wafer accumulated temperature phenomenon caused by temperature fluctuation of the wafer bearing device is avoided, and the yield of the wafer is improved. The problem that the temperature difference of the wafer is too large in the technological process is solved, and the uniformity of the deposited film is improved.

The invention relates to the field of thermoelectric technology. In order to solve a series of problems such as the excessively thick Ni layer on the surface of conventional bismuth telluride leading to increased device load, reduced refrigeration temperature difference, complex process, high cost, poor bonding between the Ni layer and bismuth telluride, and insufficient reliability of TEC, the invention proposes a surface treatment technology for bismuth telluride materials. The technology utilizes a composite treatment process of ion implantation and vacuum plating technologies such as multi-arc plating or magnetron sputtering to improve the bonding between the bismuth telluride and the Ni layer, reduce the internal load of TEC, and increase the temperature difference. At the same time, due to the improved bonding between the Ni layer and the bismuth telluride substrate, the reliability of the TEC product is optimized.

The invention discloses a low-temperature cavity rapid sample changing device, and relates to the technical field of low-temperature detection equipment, the low-temperature cavity rapid sample changing device comprises a detection cavity, a valve, a sample support and a locking mechanism, the detection cavity is provided with a sample transfer channel, a heat conduction seat is arranged in the detection cavity, the heat conduction seat is provided with a sliding groove, the valve is used for opening or closing the sample transfer channel, and the sample support is provided with a sliding block; the locking mechanism comprises two locking blocks, the two locking blocks can move oppositely in the sliding direction of the sliding blocks and get close to each other or get away from each other, and when the sliding blocks and the sliding grooves are in a sliding fit state, the locking blocks can move oppositely in the sliding direction of the sliding blocks. The two locking blocks get close to each other or get away from each other and are embedded between the sample support and the heat conducting seat to limit the sliding of the sliding block so as to realize locking, and the two locking blocks get away from each other or get close to each other so as to be separated from the sample support and the heat conducting seat so as to unlock the sliding block. The rapid sample changing device for the low-temperature cavity can greatly shorten the sample changing time and improve the sample changing efficiency.

The application relates to the technical field of water treatment equipment, and relates to a water treatment equipment which comprises a water storage device and a temperature adjusting device; the temperature adjusting device comprises a heat exchange structure and a heat exchange component; the heat exchange structure has a first heat exchange end and a second heat exchange end; the first heat exchange end is thermally coupled to the water storage device; and the second heat exchange end is thermally coupled to the heat exchange component; wherein the heat exchange structure comprises a first heat exchange piece and a second heat exchange piece; and the first heat exchange piece is thermally coupled to the second heat exchange piece. The water treatment equipment of the embodiment adopts the heat exchange structure of double refrigerating pieces superposition; the first heat exchange piece is thermally coupled to the second heat exchange piece; one refrigerating piece is used to cool the other refrigerating piece; the temperature difference between the two ends is obviously improved; and the heat exchange effect is improved.

The utility model discloses a graphite sagger and a sintering furnace thereof, the graphite sagger comprises a bottom plate and a plurality of end-to-end side plates constructed at the edge of the bottom plate so as to define a carrier area for installing products, and the bottom plate is provided with an exhaust through hole and is located at a position close to the side plates. Due to the fact that no obvious opening is formed in the periphery, a product sintered in the graphite sagger does not make direct contact with an external heating source or a medium in the sintering process, and the product can be effectively protected against external interference. Due to the fact that the exhaust through holes are located in the positions close to the side plates, compared with a sagger with exhaust ports formed in one side (single face) of the side face or exhaust ports evenly formed in the four faces of the side face, the maximum temperature difference in the graphite sagger is improved through the positions of the exhaust through holes of the structure of the graphite sagger, and the temperature difference in the graphite sagger is reduced. The performance difference of sintered products in the graphite saggar is reduced, and the consistency of the sintered products is improved.

The present invention discloses a cold air machine, including a lower water tank, a water receiving pan, a condenser pipe and a wet curtain assembly; the water receiving pan is arranged above the lower water tank, a water flow channel is formed on the water receiving pan, the water flow channel has a water outlet, and the water outlet is connected to the lower water tank; the condenser pipe is arranged in the water flow channel; the wet curtain assembly is located above the water flow channel. The technical solution of the present invention is provided with a water receiving pan above the lower water tank, a condenser pipe is arranged in the water flow channel of the water receiving pan, and the wet curtain assembly is arranged above the water flow channel, so that the cold water that falls after the wet curtain evaporates and dissipates heat falls into the water flow channel and exchanges heat with the condenser pipe in time. In addition, the volume of the water flow channel is small, which ensures that the flow rate of the water in the water flow channel is fast, and the water that falls into the water flow channel has better heat exchange efficiency and heat exchange effect with the condenser pipe. The water flow channel can be replenished with the newly fallen cold water on the wet curtain assembly in time to form a cycle, thereby increasing the temperature difference between the condenser and the water flow in the water flow channel, and improving the heat exchange efficiency and heat exchange effect of the condenser.

The liquid cooling plate comprises a first harmonica-shaped tube, a second harmonica-shaped tube and reinforcing ribs, the first harmonica-shaped tube and the second harmonica-shaped tube are arranged at intervals along the vertical direction of the liquid cooling plate, a direct flow channel is arranged in the first harmonica-shaped tube, a bent channel is arranged in the second harmonica-shaped tube, the direct flow channel is communicated with the bent channel, and the reinforcing ribs are arranged on the first harmonica-shaped tube and the second harmonica-shaped tube. A heat exchange medium flows in the channel; the reinforcing rib is fixed between the first harmonica-shaped tube and the second harmonica-shaped tube and is used for preventing the harmonica-shaped tubes from being extruded and deformed; through the arrangement of reinforcing ribs, direct current channels and bending channels, when the channels of the parallelograms are extruded by the expansion force of the battery cell, the channels deform, and when the deformation area reaches the reinforcing ribs, as the reinforcing ribs are solid, when the battery cell expands to the position, the first harmonica-shaped tube and the second harmonica-shaped tube cannot be further crushed, and the battery cell can be prevented from being damaged by the first harmonica-shaped tube and the second harmonica-shaped tube. And therefore, crushing of the liquid cooling plate caused by cell expansion at the end of the cell life is prevented, and the stability of the cooling structure is improved.

The utility model discloses an external integrated transformer radiator. The external integrated transformer radiator comprises a radiating jacket, a clamping groove matched with a heat dissipation pipe outside the transformer is formed in one side of the heat dissipation clamping sleeve, the heat dissipation clamping sleeve is tightly attached to the outer surface of the heat dissipation pipe through the clamping groove, and then the heat dissipation clamping sleeve is connected with the heat dissipation pipe. A heat absorption cavity extending in the length direction of the heat dissipation clamping sleeve is formed in the heat dissipation clamping sleeve and is close to the clamping groove. A heat dissipation channel extending in the length direction of the heat dissipation jacket is further arranged in the heat dissipation jacket, and the heat dissipation channel is close to the outer surface of the heat dissipation jacket. The upper ends and the lower ends of the heat dissipation channels communicate with the upper ends and the lower ends of the heat absorption cavities in a one-to-one correspondence mode, the heat dissipation channels and the heat absorption cavities are filled with heat conduction liquid, and the heat conduction liquid flows into the upper ends of the heat dissipation channels after absorbing heat in the heat absorption cavities, flows downwards through the heat dissipation channels and then enters the lower ends of the heat absorption cavities. And therefore, the heat dissipation channel and the heat absorption cavity form a circulating heat dissipation pipeline. According to the utility model, the heat dissipation performance of the transformer is improved, and the failure rate caused by overhigh temperature is reduced.

The invention discloses a novel light-weight power system applied to an aircraft, and relates to the technical field of novel power systems, the power system is used for providing power for propellers of the aircraft, a novel driving mode combining an engine and a power motor is adopted, fuel consumption is reduced, meanwhile, the flight smoothness of the aircraft can be improved, and the service life of the aircraft is prolonged. The engine and the propeller adopt the design scheme of parallel shafts, the characteristic of different shafts is met, and the propeller is suitable for being applied to airplanes. The lower transmission cavity is used for rotationally supporting the input shaft, and a double-end supporting mode can be adopted, so that the power transmission stability is guaranteed. When the whole machine cruising battery is insufficient, the output power can be improved for a long time to drive the power motor under the fixed rotating speed of the engine, and the battery electricity is compensated through power generation.

This invention relates to a new energy battery cooler, belonging to the field of new energy vehicle battery cooling technology. The new energy battery cooler includes a battery base, a controller, a protective shell, and a battery pack. The controller and protective shell are fixedly installed on the top of the battery base, and the battery pack is disposed inside the protective shell. A cooling flow guiding mechanism is included, comprising a contact shell, a cooling component, and a heat-conducting component. The contact shell is fixedly installed on the outside of the battery pack. By setting a cooling flow guiding mechanism on the outside of the battery pack, a passive adaptive flow guiding function not found in traditional liquid cooling structures is achieved. A composite layer of shape memory alloy memory valves and phase change microgrids is introduced into the cooling channel. When the battery pack locally heats up, the phase change layer absorbs and diffuses heat, while the memory valves deform to expand the channel cross-section, causing the coolant to automatically increase flow to the hot spot area to enhance heat transfer. This dynamically adjusts the local cooling capacity and significantly improves temperature uniformity.

This invention discloses a waste heat recovery and utilization system and method for laptops based on thermoelectric conversion effects, belonging to the field of thermoelectric materials and devices technology. It includes: a distributed thermoelectric array module composed of multiple miniature TEG units distributed in high-heat areas of the laptop, generating electricity directly through temperature differences; an adaptive thermal management module including a thermally conductive silicone layer and miniature heat dissipation fins to optimize the temperature difference between the hot and cold ends; a multi-level power management module including a rectifier circuit, a DC-DC boost chip, and a recovery and storage battery device to convert the unstable low-voltage DC power output from the TEGs into stable electrical energy, which is then stored and supplied to the target device; and an intelligent control module that dynamically adjusts the working area of ​​the miniature thermoelectric power generation units based on temperature sensor data, prioritizing power generation at the location with the largest temperature difference, and matching power supply requirements through a PMIC chip. This invention achieves efficient waste heat conversion and utilization through innovative design, solving the problem of low thermoelectric conversion efficiency in miniaturized devices, and achieving energy saving and environmental protection.

The utility model relates to a kind of PP three-layer co-extrusion foamed sheet surface skin feeling modification devices, and three extruders, screen changer, metering pump, distributor, die, calendar roll group, multiple guide temperature control roller, cooling setting roller group, traction roller group and cutting mechanism are sequentially provided along assembly line direction.The roller barrel of each temperature control structure involved in the utility model is all adopted double-runner spiral structure, and heat exchange medium flows from the middle to both ends of runner or middle two ends to middle, shortens the flow path of heat exchange medium, improves temperature difference, so as to ensure that the temperature of roller barrel can be stably controlled in predetermined range, so as to improve the quality of skin feeling texture modification on three-layer pp foamed sheet upper layer, so that skin feeling texture is more delicate.

The application provides a vehicle lamp and a vehicle, and relates to the technical field of automobile lamps. The vehicle lamp provided by the application comprises a lamp shell, an illumination cavity and a heat dissipation air duct are formed in the lamp shell, two air duct openings of the heat dissipation air duct are communicated to the outside of the lamp shell, a heat dissipation device is connected to the air duct wall of the heat dissipation air duct and extends into the heat dissipation air duct, and a lamp bead is located in the illumination cavity and is in heat conduction connection with the heat dissipation device. The heat dissipation device and the air duct wall of the heat dissipation air duct are sealed and connected through a flexible part, so that the lamp bead is allowed to displace relative to the lamp shell in the case that the illumination cavity is isolated from the heat dissipation air duct. Through the vehicle lamp provided by the application, the heat exchange air of the heat dissipation device can come from the outside of the lamp shell, so that the heat dissipation device no longer mainly relies on the high-temperature air in the illumination cavity for heat exchange, thereby improving the temperature difference between the heat dissipation device and the air, improving the heat dissipation effect of the lamp bead and improving the heat dissipation capacity.

The application relates to a multi-effect lithium bromide absorption heat pump unit and belongs to the technical field of energy saving and environmental protection. The application solves the problem of low waste water heat recovery efficiency when the existing flash evaporation technology is combined with a heat pump unit. The first to the Nth effect evaporators are connected to the flash evaporation steam outlets of the multi-effect flash evaporator through steam channels one by one, the steam outlets of the first to the Nth effect evaporators are connected to the steam inlets of the first to the Nth effect absorbers, the steam outlet of the generator is connected to the steam inlet of the condenser, the water to be heated enters the Nth to the first effect absorbers, the condenser and is discharged in sequence through a water pipeline, a driving heat source pipeline is arranged in the generator, the lower part of the generator is connected to the upper parts of the first to the Nth effect absorbers through concentrated solution pipelines, the lower parts of the first to the Nth effect absorbers are connected to the upper part of the generator through dilute solution pipelines, and the lower part of the condenser is connected to the upper parts of the first to the Nth effect evaporators through refrigerant water pipelines.

The invention discloses a novel polycrystalline silicon thin film structure for field effect passivation of a crystalline silicon cell and PECVD (plasma enhanced chemical vapor deposition) equipment, and relates to the technical field of production of crystalline silicon photovoltaic cells, the polycrystalline silicon (Poly-Si) thin film structure comprises two low-concentration doped regions and two high-concentration doped regions, and the low-concentration doped regions and the high-concentration doped regions are stacked layer by layer. The low-concentration doped region and the high-concentration doped region are stacked layer by layer, free carriers in the high-concentration doped region are diffused to the low-concentration doped region, fixed ions with charges are left, the high-concentration doped region becomes a high net charge region, the low-concentration doped region is high in crystallinity and carrier mobility, impurity atom diffusion is inhibited, and the performance of the device is improved. By arranging the high net charge region, the enhanced field effect passivation effect is realized, so that the efficiency of the crystalline silicon photovoltaic cell is improved.

The invention discloses an MEMS thermopile infrared sensor and a preparation method thereof. Comprising a substrate, a first supporting film, a second supporting film, a thermopile layer, a dielectric layer, a reflecting layer and a passivation layer. The thermopile layer is formed by connecting a plurality of double-layer thermocouple pairs in series, each double-layer thermocouple pair comprises a first thermocouple P-type polycrystalline silicon, a silicon oxide insulating layer and a second thermocouple metal Al, and hot ends are gathered in the middle of the surface of the chip and are arranged in a radial mode. The thickness difference of dielectric layers at the hot end and the cold end of the thermocouple strip is regulated and controlled, the dielectric layer at the hot end is enlarged, the dielectric layer at the cold end is kept thin to increase the equivalent thermal resistance of the hot end, the aluminum reflecting layer is deposited at the cold end to reduce the absorption of infrared heat by the cold end, and the temperature difference between the hot end and the cold end is enhanced through combined action. And thus, the output voltage of the MEMS thermopile infrared sensor is improved.

This utility model discloses an intelligent control system for reducing temperature differences in a tobacco curing barn, relating to the field of tobacco curing technology. It includes a tobacco loading chamber with a heating chamber located in the middle of its right side. An air inlet is located at the bottom of the heating chamber and communicates with the tobacco loading chamber. The system also includes a dehumidification component, a temperature difference control mechanism, a cold air supply component, an air guide control mechanism, and a circulation control mechanism. The dehumidification component is installed on the top side of the tobacco loading chamber. The temperature difference control mechanism includes a fan. A vertical air duct is located in the middle of the heating chamber, and a heating exhaust duct is located on the right side of the tobacco loading chamber. The bottom of the vertical air duct communicates with the bottom of the heating exhaust duct. The upper and lower ends of the heating exhaust duct are respectively connected to the tobacco loading chamber through two exhaust channels. Each exhaust channel is equipped with an air guide control mechanism. This intelligent control system for reducing temperature differences in the tobacco curing barn helps to balance the temperature between the upper and lower layers inside the barn, improving the quality of the cured tobacco.

The utility model relates to a corona roller, include: the roller body, including the hollow appearance's outer tube, be provided with the side stop piece in the left and right sides of outer tube, the middle part of outer tube is provided with the partition cover, the inside of partition cover is integratively connected with the middle axle, the middle axle middle part is provided with the buffer cavity, the both will divide into left flow passage space and right flow passage space with partition cover and the middle axle two outer tubes, be equipped with the passage in the middle axle and partition cover, form left inlet channel and right inlet channel, left inlet channel and right inlet channel all are linked with buffer cavity, the joint structure includes swivel joint no.

The utility model relates to a rotary temperature adjusting kiln structure which comprises a feeding kiln and a combustion kiln which are arranged on the same side of a heat insulation chamber. The feeding kiln is positioned above the combustion kiln; a sintering material entering from the feeding kiln is turned by a rotary structure arranged in the heat insulation chamber under the action of gravity and then enters the combustion kiln; a feeding hole of the combustion kiln is formed in the outer side of the thermal insulation chamber at an interval and is opposite to a discharging hole of the rotary structure; rotation of sintering materials is effectively achieved through the rotation structure, the possibility of blocking of the sintering materials is reduced, meanwhile, the arrangement position of the combustion kiln is changed, the temperature difference between the feeding kiln and the combustion kiln is increased through the heat insulation chamber, and the positions of the combustion kiln are arranged at intervals, so that the energy consumption is reduced. And instant temperature jump can be realized when the sintered material is discharged from the discharging part and enters the combustion kiln.

The invention relates to the field of heat supply devices, and discloses a water purifying agent polymerization reaction heat supply device and a production technology.The water purifying agent polymerization reaction heat supply device comprises a heating equipment body used for heating mixed liquid, and the heating equipment body comprises a heating tank body, a steam heating generator, a high-temperature cleaning device and an arch-shaped heated circulation plate body; high-temperature gas flow in the heating tank body can be guided and received through the second communicating pipe and is discharged outwards through the heating channel, the gas high-speed flowing effect is formed, water in the water tank is pumped through the first pump to flow along the fourth communicating pipe in the process, the water in the fourth communicating pipe is heated and preheated through the high-temperature gas in the heating channel, and the high-temperature gas in the second communicating pipe is discharged outwards through the heating channel. And the temperature of the fourth communicating pipe is reduced through water in the water tank, and the temperature difference is achieved, so that flowing of the high-temperature gas in the second communicating pipe is further accelerated, the flowing speed of the gas in the heating tank body is increased, and the temperature in the heating tank body is balanced by increasing the flowing speed of the gas.

The utility model relates to the technical field of plastic processing, and discloses a plastic extruder with an anti-blocking structure, which comprises a support frame, one end of the support frame is fixedly provided with a fixing frame, the top of the support frame is provided with a melting mechanism, the melting mechanism comprises a processing machine barrel, the processing machine barrel is internally provided with a plurality of high-temperature heaters, and the high-temperature heaters are connected with the fixing frame. A spiral feeding pipe is rotatably connected to the inner wall of the machining machine barrel, a cooling assembly and a vibration assembly are arranged at one end of the fixing frame, the cooling assembly comprises cooling fan blades, the vibration assembly comprises a vibration block, and a transmission mechanism is arranged between the fixing frame and the supporting frame. The transmission mechanism can drive the multiple cooling fan blades to rotate and can drive the multiple vibration blocks to repeatedly impact the inner wall of the spiral feeding pipe. And a plurality of vibration blocks can intermittently vibrate the inner wall of the spiral feeding pipe, so that the probability and quantity of plastic adhesion and residue are further reduced, and the utilization rate of materials is further improved.

The invention discloses a rapid sample changing device for a low-temperature cavity, and relates to the technical field of low-temperature detection equipment.The rapid sample changing device is characterized in that a heat conduction base is arranged in a detection cavity, the detection cavity is provided with a sample transferring channel, a sample bearing piece can carry a sample to enter and exit from the detection cavity through the sample transferring channel, the sample bearing piece comprises a sample support and a mounting base, and the mounting base is provided with a second connecting part; the mounting seat rotates along the first direction relative to the heat conducting seat, the first connecting part is matched with the second connecting part, so that the mounting seat and the heat conducting seat are locked, the mounting seat rotates along the second direction relative to the heat conducting seat, the first connecting part is separated from the second connecting part, and the mounting seat and the heat conducting seat are unlocked; the valve is used for opening or closing the sample transfer channel. According to the scheme, the problem of low efficiency caused by limitation of an operation space for replacing a sample is reduced, the detection cavity and / or the sample bearing piece do not need to be heated when the sample is taken out, the detection cavity does not need to be cooled when a new sample is put in, the sample replacement time is effectively shortened, and the sample replacement efficiency is effectively improved.

The present invention relates to an energy-saving kiln, comprising a first heat recovery device, a second heat recovery device, a cooling device, a plurality of combustion devices and a furnace body, wherein a transfer channel is formed inside the furnace body, and the furnace body is divided into a drying section, a heating section, a second heating section, a rapid cooling section and a cooling section in sequence along the product moving direction, wherein the first heat recovery device has a first recovery air inlet connected to the top of the cooling section and is connected to the drying section, the heating section and the second heating section, wherein the second heat recovery device comprises a second recovery air inlet connected to the top of the rapid cooling section and is connected to the combustion device and the first heating section, wherein the cooling device comprises a cold air inlet and is connected to the rapid cooling section, the second heating section and the first heating section, wherein each combustion device comprises a first nozzle located at the bottom of the second heating section and a second nozzle located at the side of the second heating section, thereby reducing the temperature difference between the upper and lower parts of the transfer channel while reducing energy loss.