9results about How to "Increase temperature difference" patented technology

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.

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 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.

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 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.