11results about How to "Reduce the maximum temperature" patented technology

This utility model discloses a water-cooling system structure and a power battery system suitable for batteries, including a shunt pipe and a manifold pipe, with several water-cooling plates disposed between the shunt pipe and the manifold pipe; one end of each water-cooling plate is connected to the shunt pipe via an inlet pipe, and the other end is connected to the manifold pipe via an outlet pipe; the manifold pipe includes a return water pipe and a connecting pipe, with a first connection port and a second connection port on both ends of the connecting pipe, the first connection port communicating with one end of the return water pipe, and the second connection port communicating with the other end of the return water pipe; the connecting pipe is provided with a baffle structure for isolating the liquid flow in the connecting pipe, the baffle structure being located between the first connection port and the second connection port and adjacent to the second connection port; the bottom end of the shunt pipe is connected to an inlet pipe with a quick-connect water inlet connector, and the bottom end of the manifold pipe is connected to an outlet pipe with a quick-connect water outlet connector. This solves the problem of large temperature differences and high temperatures in existing locomotive battery water-cooling systems, which directly affect the battery system's lifespan.

The application discloses an embedded voltage-stabilized heat-dissipation PCB structure with a thermoelectricity synergic regulation layer and a preparation method thereof. The structure comprises at least one PCB inner layer and a chip power supply pad arranged on the inner layer, and a ring-shaped or C-shaped thermoelectric material pattern (ZT>0.5 at room temperature) is embedded in a region corresponding to the chip power supply pad directly below the inner layer. A first end of the thermoelectric material pattern is electrically connected to a power supply layer, and a second end is electrically connected to a grounding layer or a heat-dissipation through hole. The application utilizes the temperature difference during the operation of a chip to drive the thermoelectric material to generate a reverse electromotive force to inhibit power supply ripple, and simultaneously utilizes the Peltier effect to actively pump heat, so that the inner layer is integrated with voltage stabilization and heat dissipation. The power supply ripple can be reduced by 25% to 42% and the surface temperature of the chip can be reduced by 11 DEG C to 14 DEG C by using the PCB structure. The application directly integrates the thermoelectric function in the PCB inner layer, does not occupy the surface layer area, and is suitable for the packaging substrate of high-performance computing chips.

The utility model relates to an oil cooling motor with a spraying oil pipe, which comprises a shell, a stator, a rotor and a spraying pipe assembly, a cover plate A and a cover plate B are respectively fixed at two ends of the shell, a gap is reserved between the stator and the shell, the spraying pipe assembly is fixed in the gap, the spraying pipe assembly comprises an axial spraying oil pipe and a circumferential spraying oil pipe which are connected with each other, oil holes are formed in the axial spraying oil pipe and the circumferential spraying oil pipe, an oil inlet pipe is further arranged on the shell, and the oil inlet pipe is communicated with the axial spraying oil pipe and / or the circumferential spraying oil pipe; the rotating shaft is provided with an axial oil duct, the axial oil duct is further provided with a side wall oil hole, the cover plate A or the cover plate B is provided with a radial oil inlet pipeline, one end of the radial oil inlet pipeline is communicated with the axial spraying oil pipe, the other end of the radial oil inlet pipeline extends outwards into the axial oil duct, the rotor core is provided with a radial oil throwing passage, and the side wall oil hole is communicated with the radial oil throwing passage. The stator of the motor is cooled more uniformly, and the overall heat dissipation efficiency is high.

This utility model relates to the field of automotive brake technology and discloses a composite heat dissipation brake assembly, including a brake disc with multiple heat dissipation holes on its surface and ventilation ribs inside. A bracket is located on one side of the brake disc, and a top cover is located at the upper end of the bracket. Friction pads are located on the lower side of the top cover and inside the bracket, and the friction pads are disposed on the upper and lower sides of the brake disc. A caliper body is located on the upper side of the top cover and is connected to the friction pads. A cooling mechanism is located inside the bracket and communicates with the interior of the friction pads. This design has the advantages of reducing the maximum temperature of the brake caliper during operation, increasing braking force during prolonged braking, and reducing braking distance. It solves the problem that if heat cannot be effectively dissipated, it will lead to a decrease in braking performance, thus affecting driving safety.

This invention discloses a power battery module based on a PCM heat absorber plate, comprising a battery pack consisting of several cylindrical batteries arranged in an array; a PCM heat absorber plate, the interior of which is filled with a thermally conductive porous structure and paraffin phase change material, which absorbs heat through melting of the phase change material to reduce battery temperature; the PCM heat absorber plate is provided with several sleeve structures, the sleeves being connected front and rear along the air-cooling flow direction via sleeve connecting plates, and the cylindrical batteries being mounted on the PCM heat absorber plate through the sleeve structures; heating strips, located at the bottom of the PCM heat absorber plate and perforated, fitting around the sleeves, used to heat the battery pack at low temperatures; and a cooling fan, located at the head or tail of the PCM heat absorber plate, used for air-cooling heat dissipation of the battery pack and the PCM heat absorber plate. This invention, using a PCM heat absorber plate, can enhance the thermal conductivity and heat absorption capacity between batteries, thereby reducing local hot spots and temperature differences between batteries, achieving efficient thermal management.

The application relates to the technical field of turbine blade trailing edge cooling, and relates to a wave-shaped flow guide structure applied to a turbine blade trailing edge and a turbine blade. The turbine blade trailing edge is provided with a cooling channel. The wave-shaped flow guide structure comprises a plurality of rows of spoiler columns and a plurality of flow guide plates. The spoiler columns are arranged in the cooling channel and arranged along the flow direction and the span direction, and the spoiler columns in the adjacent two rows are alternately arranged. The flow guide plates are arranged in the cooling channel and extend in a wave shape along the span direction. The wave-shaped extension path of the flow guide plates alternately passes through the regions between the adjacent rows of spoiler columns in sequence. The application can regulate and control the span-wise distribution of the flow in the wedge-shaped channel, on the one hand, strengthens the heat exchange effect in the wedge-shaped channel, and on the other hand, improves the uniformity of the span-wise distribution of the cooling air.

This disclosure provides an electrode, a cell assembly including the electrode, a single cell including the cell assembly, a battery device including the single cell, and an electrical device including the battery device or the single cell. The electrode includes a current collector and a material layer disposed on at least one side surface of the current collector along a first direction. The material layer includes a first material layer and a second material layer. The first material layer includes a first material, and the second material layer includes a second material. The thermal conductivity of the first material is greater than that of the second material. Along a second direction, at least one end of the electrode has a tab. The first material layer is located in the end region of the current collector near the tab. Along the second direction, the second material layer is located on the side of the first material layer away from the tab. The first and second directions intersect, enabling rapid heat transfer from the end of the cell near the tab to the end away from the tab. This reduces the temperature difference and the maximum temperature while increasing the minimum temperature of the cell, thereby improving the fast-charging performance and lifespan of the cell.

This invention relates to a lithium-ion battery thermal management system and simulation optimization method based on PCM and liquid cooling coupling, belonging to the field of lithium battery thermal management technology. It includes a lithium battery, a battery housing, spacers, a metal casing, a phase change material (PCM), and a temperature control subsystem. Each metal casing houses one lithium battery, and multiple metal casings form a metal casing array to house multiple lithium batteries. A PCM is filled between each lithium battery and the metal casing wall. Spacers are placed between adjacent metal casings to reserve coolant flow channels. The battery housing seals the metal casing array. The temperature control subsystem monitors the temperature of the lithium-ion batteries and the outflowing coolant, and adjusts the coolant flow rate based on the temperature monitoring data. It also includes umbrella-shaped metal fins embedded in the PCM, with the roots of the metal fins contacting the surface of the lithium-ion battery or the wall of the cooling plate, and the umbrella-shaped openings facing the interior of the PCM. This invention can expand the heat dissipation coverage and significantly improve temperature uniformity.

The invention discloses bismaleimide-triazine resin suitable for a packaging substrate as well as a preparation method and application of the bismaleimide-triazine resin. The bismaleimide-triazine resin is prepared from the following raw materials in parts by weight: 100 parts of cyanate ester resin, 50 to 100 parts of bismaleimide resin, 20 to 40 parts of alkenyl phenyl monomer, 20 to 35 parts of flame retardant, 10 to 30 parts of bridging agent and 2 to 6 parts of catalyst. According to the invention, cyanate ester resin and bismaleimide resin are taken as matrix resin, and are matched with the alkenyl compound, the flame retardant, the bridging agent and the catalyst to form the bismaleimide-triazine resin with excellent dielectric property, high temperature resistance and excellent flame retardance through a prepolymerization process, and the bismaleimide-triazine resin can be formed at a relatively low temperature and can be used as a high-temperature-resistant material. Internal stress caused by high-temperature forming is reduced, production efficiency is improved, energy consumption is reduced, and the method is suitable for the field of low-dielectric wave-transmitting materials.

The application discloses a cathode module and a semiconductor device, and relates to the technical field of semiconductor devices. The cathode module comprises a shell, a first liquid distributor and a target material. The shell is provided with a containing cavity. The first liquid distributor is located in the containing cavity. The target material is fixed to the bottom of the shell. The shell is provided with a liquid inlet for introducing a cooling medium. The first liquid distributor is provided with at least one liquid inlet channel, a plurality of shunt channels and a plurality of liquid outlet channels. Each liquid inlet channel is in communication with the liquid inlet. The inlet of each shunt channel is in communication with the liquid inlet channel corresponding to the shunt channel. The plurality of shunt channels are used for distributing the cooling medium to different areas of the first liquid distributor. The outlet of each shunt channel is in communication with the inlet of at least one liquid outlet channel. The outlet of the liquid outlet channel is arranged towards a cooling area, so that the cooling effect of the cathode module can be improved.

A method for achieving high brightness and high stability metal halide perovskite quantum dot light-emitting diodes belongs to the field of metal halide perovskite quantum dot material preparation technology. It includes the preparation of the precursor cesium oleate, the preparation of the lead source precursor, the preparation of CsPbX3 quantum dots, and the preparation of quantum dot samples treated with TMSBr and TEPO. Untreated CsPbBr3 quantum dots fuse after heating to 85°C, while the quantum dots treated in this invention maintain good dispersion under the same conditions. After annealing for 30 minutes, the photoluminescence quantum yield of the treated quantum dots reaches 77.1%, far exceeding the 5.6% of the untreated samples. This invention optimizes the heat dissipation performance and lifespan of the quantum dot device, resulting in a lower maximum operating temperature and a more uniform temperature distribution; at 1000 cd / m²... 2 At the specified brightness level, the device has a lifespan of up to 181 hours when it decays to 50% of its initial brightness, which is about 60 times that of the original device, significantly improving the long-term operational stability of the device.