14results about How to "Efficient thermal management" patented technology

This application provides a semiconductor structure and a method for forming the same. The semiconductor structure includes: a semiconductor substrate with a first insulating layer formed on its surface; a gate signal conditioning circuit and a virtual circuit disposed on the surface of the first insulating layer, wherein the gate signal conditioning circuit and the virtual circuit have identical structures; one end of the gate signal conditioning circuit is connected to a gate signal source, and the other end is connected to the gate of a device cell, wherein the gate signal conditioning circuit is used to adjust the resistance between the gate signal source and the gate of the device cell; one end of the virtual circuit is connected to a virtual gate monitoring signal terminal, and the other end is connected to a virtual gate monitoring ground terminal, wherein the virtual circuit is used to simulate the operation of the gate signal conditioning circuit and is monitored.

This invention provides a low-temperature resistant energy storage battery for new energy vehicles, comprising a base housing as the basic installation structure; a bottom protective module that adapts to low-temperature heating and high-temperature heat dissipation requirements via a heating plate; a battery support tray that supports the battery module and guides airflow circulation via a support panel and battery enclosure frame; and a heat exchange module that uses a flow divider and elastic clamping components to achieve airflow distribution and heating plate positioning, ensuring uniform thermal management. This invention balances the temperature difference between the center and sides of the battery module through a flow divider design with a large airflow on the outside and a small airflow on the inside, ensuring uniform temperature distribution throughout the battery module. This achieves temperature consistency during charging and discharging, reduces the negative impact of localized overheating or overcooling on battery performance, and extends battery life.

An enhanced heat dissipation, low-loss, high-speed permanent magnet motor rotor structure comprises a solid shaft body, permanent magnets, and a carbon fiber protective sleeve. The solid shaft has spaced-apart rotor cooling rings and rotor dynamic balancing rings; the permanent magnets are mounted on the solid shaft body; the carbon fiber protective sleeve is assembled using a high-tension winding method; the permanent magnets have an unequal thickness structure, with their thickness distributed sinusoidally, and their outer surface is circular. In the rotor structure, the rotor cooling rings and rotor dynamic balancing rings are in direct contact with the cooling fluid in the air gap and the unequal-thickness permanent magnets, enabling the heat from the permanent magnets to be conducted to the cooling fluid through heat conduction and convection. Furthermore, the unequal-thickness permanent magnets improve the sinusoidal magnetic flux density of the air gap, effectively suppressing rotor eddy current losses. The combination of rotor loss suppression measures and high-efficiency rotor cooling technology achieves efficient thermal management of the high-speed permanent magnet motor rotor from both loss suppression and cooling perspectives.

The application discloses a heat pump air conditioning system, comprising a driving module, the driving module comprising a driving circuit and a heat-conducting substrate, wherein the driving circuit is used for driving a motor in the heat pump air conditioning system, and the heat-conducting substrate is used for conducting and dissipating heat generated by the driving circuit to the surrounding environment; further comprising a heating module and a heat dissipation module, wherein the heating module is arranged close to the heat-conducting substrate or in the heat-conducting substrate; when the heating module is in a heating state, the heating module is used for raising the temperature of the heat-conducting substrate, and the heat dissipation module is arranged close to the heating module, and the heat dissipation module comprises a heat dissipation pipeline, and the heat dissipation pipeline is used for guiding refrigerant flow to dissipate heat for the driving module. The heat pump air conditioning system provided by the application forms a reasonable heat transfer path by arranging the heat dissipation module close to the heating module and arranging the heating module close to the heat-conducting substrate; on one hand, the heating module does not affect normal heat dissipation, and on the other hand, the heating module can be used for raising the temperature of the heat-conducting substrate to inhibit condensation of the driving module, and the heating power can be greatly reduced.

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.

This invention discloses an outdoor cabinet structure suitable for high-vibration environments, comprising: a composite cabinet, including an outer shell and an inner shell, the inner shell being a frame structure; shock-absorbing cotton being disposed between the outer shell and the inner shell, the shock-absorbing cotton filling the frame gaps of the inner shell and being compressed and sandwiched between the inner shell and the outer shell; the inner shell and the outer shell being fixedly connected by fasteners passing through the shock-absorbing cotton; and a shock-absorbing chassis, connected between the composite cabinet and the mounting platform, having adjustable mounting shock-absorbing support columns, and the adjustable mounting shock-absorbing support columns and... The shock-absorbing chassis is threaded and height-adjustable, with shock-absorbing pads at its lower end; L-shaped feet are mounted on the shock-absorbing chassis and have waist-shaped adjustment holes, allowing adjustable shock-absorbing support columns to connect to the L-shaped feet via the waist-shaped adjustment holes and adjust their horizontal position along the waist-shaped adjustment holes; a disc damper includes a housing and a rotating shaft, with the housing fixedly connected to the shock-absorbing chassis and the rotating shaft connected to a fixed shaft at the bottom of the composite cabinet, generating a damping torque opposite to the direction of rotation when the rotating shaft rotates within the housing.

The application discloses a device and a method for nonlinear frequency conversion regenerative amplification, and belongs to the technical field of laser nonlinear frequency conversion. The device comprises a signal light injection unit, a regenerative amplification cavity unit and a pump light synchronization unit. The regenerative amplification cavity unit comprises an optical resonant cavity structure module, a polarization control module and a nonlinear action module. The polarization control module is driven by a time sequence controller to form a time domain switch, and the signal light is accurately controlled to circulate in the cavity for a preset number of times. At the same time, the pump light synchronization unit generates a pump pulse train laser which is synchronized with the circulation process and whose sub-pulse power increases in sequence, so that the signal light occurs optical parametric amplification with a corresponding pump sub-pulse in a nonlinear crystal in each circulation. The application converts the spatial complexity of multi-stage amplification into time domain controllability, realizes high-efficiency and high-gain nonlinear frequency conversion by using a single-stage compact structure, and significantly improves the system integration and stability.

An electronic assembly and a whole-cabinet server are provided. The electronic assembly includes a pair of processing elements, a chip cooling element, and a power supply cooling element. The pair of processing elements are disposed in a stacked manner in a thickness direction. Each processing element includes a carrier board, a chip, and a power supply unit. The carrier board has a first side and a second side opposite to each other in the thickness direction. The chip is disposed on the first side of the carrier board. The power supply unit is electrically connected with the carrier board. The chip cooling element is in contact with the chip. The power supply cooling element is in contact with the power supply unit, wherein the chip cooling element or the power supply cooling element is disposed between the pair of processing elements.

The invention relates to a power cycle test system and method for multi-specification IGBT (Insulated Gate Bipolar Translator) modules. The system comprises a plurality of valve banks formed by connecting a plurality of submodules in series, and the plurality of valve banks are connected in series through a modular busbar to form an annular power loop; the sub-module comprises a capacitor bank, a universal quick-release press-fitting structure and a cooling system, and the capacitor bank comprises a plurality of capacitor units which are connected in parallel; the universal quick-release press-fitting structure is connected in parallel with the capacitor bank, and the universal quick-release press-fitting structure is used for clamping an IGBT module to be tested; the cooling system comprises a plurality of radiators, the radiators and the to-be-tested IGBT module are arranged in a stacked mode, and the heating face of the to-be-tested IGBT module is tightly attached to the radiators. An efficient and energy-saving twin-trawling test platform is constructed through the modularized sub-modules and the annular power loop; the capacitor bank with variable capacitance provides adjustable power support for IGBTs with different specifications.

The utility model provides a battery cell module, a battery module and a battery pack. The battery cell module comprises two battery cell monomers (1), and the two battery cell monomers (1) are arranged at an interval along the expansion direction of the battery cell monomers (1); the elastic device (2) is arranged between the two battery cell monomers (1), the elastic device (2) comprises a first side plate (3) and a second side plate (4) which are oppositely arranged along the expansion direction of the battery cell monomers (1), and a plurality of springs (5) arranged between the first side plate (3) and the second side plate (4), one of the two battery cell monomers (1) is positioned on one side, far away from the second side plate (4), of the first side plate (3), and the other of the two battery cell monomers (1) is positioned on the other side, far away from the second side plate (4), of the second side plate (4). And the other one of the two battery cell monomers (1) is positioned on one side, far away from the first side plate (3), of the second side plate (4). The battery cell module disclosed by the utility model can effectively solve the problems that the traditional foam shows obvious stress loss and the rebound resilience is reduced in an all-solid-state battery.

The utility model discloses a compact sealed type variable frequency direct drive water pump passes integrated impeller section, sealing section, permanent magnet section and bearing section through integrated four stage reducing rotor shaft, sealing section axle diameter is accurate 0.5 0.8mm less than impeller section axle diameter, the impeller section installs impeller, and the impeller cooperation hydraulic sleeve connection realizes 99% torque transmission efficiency, sealing section link interface board - flange integrated forging spare, and the integrated silicon carbide ring is sealed with the inflation ring and constitutes axial double -channel sealing system, the permanent magnet section is equipped with 32 slot nickel plating matrix slot array, adopts the composite sheath structure from inside to outside, including equal length carbon fiber sheath and the metal isolating sleeve of two end extension 5 15mm, and the stator winding is covered through 3 0.3mm heat conduction epoxy resin pouring layer, and axial completely covers permanent magnet section and forms high -efficient heat dissipation channel. Ultimately realize axial size reduction 30%, and torque efficiency is greater than 99%, and the technical effect of zero leakage under high pressure working condition.

The application relates to the technical field of spacecraft electronic systems, and provides a high-function-density integrated electronic system for micro-nano satellites, which comprises the following: a core heterogeneous computing unit formed by adopting system-level packaging technology; a multifunctional radio frequency and communication unit which integrates a radio frequency transceiver front end, a baseband processing circuit, a power amplifier module and a radio frequency switch by adopting heterogeneous integration technology; an intelligent power management unit which adopts a wide-band semiconductor power device to improve conversion efficiency; a three-dimensional mother board which internally integrates a signal layer, a power supply layer, a ground layer and embedded passive components; a multi-mode hybrid bus which is composed of a high-speed serial bus, a low-speed control bus and an on-chip high-speed interconnection bus; a driving unit which realizes overcurrent protection and state monitoring; and a heat management structure which comprises a heat conduction path embedded in the mother board, a heat spreading plate in contact with high-power chips and a phase change heat storage material. The problems of low function density, insufficient processing capacity, large volume and weight and high power consumption of a traditional architecture are solved.

The application discloses a heat pump participating type hybrid cooling system for a wind turbine generator unit and a control method thereof, which comprises a nacelle cooling water circulating unit, a radiator cooling water circulating unit, a heat pump unit, a first cooling liquid reversing valve and a second cooling liquid reversing valve. The nacelle cooling water circulating unit is connected with the radiator cooling water circulating unit through the heat pump unit, and the forward and reverse operation of refrigerant is switched through the heat pump unit. The two ends of the nacelle cooling water circulating unit are connected with the two ends of the radiator cooling water circulating unit through the first cooling liquid reversing valve and the second cooling liquid reversing valve respectively, and the flow direction of the cooling liquid is controlled through the opening of the first cooling liquid reversing valve and the second cooling liquid reversing valve. The application can effectively compensate the heat dissipation performance of a natural wind cooling radiator under the condition of medium and low wind speed, improve the economy of the wind turbine generator unit, and realize effective preheating of the wind turbine generator unit through the characteristics that the heat pump can switch the forward and reverse operation.

The utility model provides a motor control assembly for a pump and lightweight automation equipment. The motor control assembly for the pump comprises a Hall circuit board assembly, a filtering assembly and a motor driving control circuit board assembly which are sequentially arranged from bottom to top, the outer shell is fixed on a rear end cover of the motor; the Hall circuit board assembly, the filtering assembly and the motor driving control circuit board assembly are arranged in the outer shell; the filtering assembly comprises a filtering module which is used for carrying out filtering processing on the input direct current. The motor driving control circuit board assembly is provided with a motor control module, and the motor control module is electrically connected with the filtering module and used for converting the filtered direct current into a motor driving signal so as to carry out driving control on a motor; a Hall component is integrated on the Hall circuit board assembly, and the Hall component is used for collecting the position information of the motor rotor. The integrated structural design that the motor control assembly is installed in the motor improves the requirements of high efficiency, compactness, light weight, high reliability and the like of the equipment.