19results about How to "Optimize thermal design" patented technology

The invention discloses a motor with heat pipe integrated arc-shaped radiating fins, and relates to the technical field of motors. In order to solve the problems that in the long-time operation process of an existing motor, due to the fact that internal assemblies such as a winding and an iron core generate a large amount of heat, straight-strip-shaped or blade-shaped cooling fins are adopted, the cooling effect is poor, the motor is overheated, and then the driving efficiency of the motor is reduced. A plurality of arc-shaped heat dissipation fins are evenly arranged on the outer surface of a shell in the circumferential direction, each arc-shaped heat dissipation fin comprises a channel, an evaporation section and a condensation section, the condensation section is in an arc shape, the evaporation section and the condensation section are connected end to end, the channels are machined in the evaporation section and the condensation section in the length direction, the surface area is increased through the arc-shaped heat dissipation fins, and the heat dissipation efficiency is improved. The air flow path is optimized, the heat pipes are arranged in the channels in the arc-shaped heat dissipation fins, heat on the surface of the shell is better transmitted to the outer sides of the fins through the heat pipes, heat transmission is accelerated, and the temperature rise of the motor during working is effectively reduced. The invention is suitable for the field of motor heat dissipation.

The invention discloses a diffusion capacitance-based reverse recovery model turn-on loss calculation method and system, and the method comprises the steps: extending the junction capacitance range of a SiC MOSFET through combining the diffusion capacitance and a three-capacitor model, and can more accurately describe the reverse recovery characteristic of a medium-voltage SiC MOSFET, and achieve the simulation precision of the model on the actual device behavior. And a solid foundation is provided for subsequent analysis and optimization. By solving the linearized reverse recovery model, the method can obtain voltage and current waveforms in the reverse recovery process of the SiC MOSFET. The waveforms are key data for evaluating the turn-on loss and directly reflect energy conversion and loss conditions of a device in the turn-on and turn-off process, and the method can further calculate the heat loss of the medium-voltage SiC MOSFET in the turn-on process according to the reversely recovered voltage and current waveforms.

The invention discloses a safe working area calculation method, device and system of an MOSFET and a storage medium, and relates to the technical field of semiconductors. The method comprises the following steps: acquiring MOSFET temperature sensitive parameters; obtaining a relation curve between the MOSFET temperature sensitive parameter and the MOSFET junction temperature; acquiring transient thermal impedance of the MOSFET under different duty ratios and different pulse widths; calculating the maximum allowable power loss of the MOSFET under different pulse widths of the single pulse; calculating a safe working area SOA curve coordinate of the MOSFET; and automatically calculating, drawing, storing and outputting a safe working area SOA diagram of the MOSFET on the basis of Qt Widgets. According to the SOA calculation method for the safe working area of the MOSFET, the thermal performance and the electrical performance of the MOSFET are comprehensively considered, the safe working area of the MOSFET is determined through a series of experiments and calculation steps, and the accuracy of a calculation result is improved.

The invention provides a hard disk backboard and a server, the hard disk backboard is provided with a plurality of first connectors and a plurality of second connectors, and the hard disk backboard can be switched between a first working mode and a second working mode; in the first working mode, each first connector and each second connector are respectively used for electrically connecting different hard disks, and each hard disk is in communication connection with the mainboard through the first connector or the second connector; in the second working mode, the at least two first connectors are connected with the RAID chip in a matched mode, the other first connectors or the second connectors are used for being electrically connected with different hard disks respectively, the RAID chip is in communication connection with the corresponding hard disk through the corresponding first connector, and the RAID chip is in communication connection with the mainboard through the first connector. According to the hard disk backboard and the server, the expandability and flexibility of the system are improved, efficient management and configuration of the hard disk are achieved, and the effects of fault isolation, hard disk redundancy and stable performance are achieved.

The present application discloses a thermal field calculation method, device and computer equipment for a three-dimensional integrated circuit. The method comprises the following steps: obtaining a three-dimensional spatial topological structure and material characteristics by reading a circuit device model and a circuit information structure corresponding to the three-dimensional integrated circuit; layering the circuit device model according to the three-dimensional spatial topological structure and the material characteristics, obtaining layer distribution information and device distribution information corresponding to the circuit device model, wherein the layer distribution information is used to divide the circuit device model into a plurality of layers; obtaining circuit parameters corresponding to each component layer in the plurality of layers according to the circuit information structure, and defining the circuit parameters corresponding to each component layer in a preset simulation environment; the circuit parameters at least include one or more of a heat source network, a power consumption parameter and a device temperature; meshing the metal region and the non-metal region in the layer layer by layer according to the material characteristics and the device distribution information; performing finite element analysis on the circuit device model, and outputting a temperature distribution diagram and a temperature value matrix data structure.

The utility model discloses a 4G communication outdoor standby power lithium battery which is used for providing power support for outdoor communication equipment, the whole lithium battery comprises a box body, a lithium battery module and a BHC module, the box body comprises a heat dissipation front cover, a cylinder body and a rear cover, the lithium battery module is arranged in the cylinder body, and the BHC module is fixed on the heat dissipation front cover through a connecting piece; the lithium battery module realizes charging and discharging management, temperature monitoring and safety protection through the BHC module; a 4G module is arranged on the heat dissipation front cover and used for supporting remote monitoring and remote upgrading, and a user can check information such as the battery state, the electric quantity and the temperature in real time through a mobile terminal and receive an abnormal alarm. The system has the characteristics of compact structure, convenience in installation, remote intelligent management and the like, is suitable for outdoor scenes such as communication base stations and monitoring equipment, and effectively improves the reliability and maintenance efficiency of equipment power supply.

The present invention relates to the field of energy consumption analysis of mini computers, and in particular to an energy consumption analysis method, device, equipment and storage medium for a mini computer host. The method comprises the following steps: obtaining multi-dimensional real-time monitoring data, the multi-dimensional real-time monitoring data including CPU usage, memory usage, disk I / O volume and computer multi-component temperature monitoring data; performing time window decomposition on the multi-dimensional real-time monitoring data, and performing multi-load scene recognition, thereby obtaining multiple load scene feature data; performing component temperature average calculation on the computer multi-component temperature monitoring data one by one, and performing dynamic temperature trend evolution fitting to construct temperature distribution trend curves of multiple components; performing scene type matching of the current node on multiple load scene feature data based on the temperature distribution trend curves of multiple components, and then performing component heating trend calculation under different scenes, thereby generating component heating trend diagrams of multiple load scenes. Thus, the energy consumption of the mini computer is optimized.

The utility model relates to generator set protection equipment technical field, concretely relates to a construction generator set shell with fire prevention function, including base, top cover and side wall coaming, the side wall coaming is fixed on the base, and the top cover is buckled and is connected with the top of side wall coaming, the side wall coaming adopts double -deck composite structure, including the metal protection board and fire -retardant lining that set gradually from outside to inside, the metal protection board surface is coated with high -temperature -resistant anticorrosive coating, and the back of fire -retardant lining is connected through buckle and metal protection board up and down sliding insertion, the metal protection board inboard is equipped with the flow guide rib that abuts with the back of fire -retardant lining, be equipped with the guide slot that is matched with the buckle shape on the flow guide rib, and form the ventilation interlayer between adjacent flow guide rib, the top cover is composed of the extension plate of triangle and the cover plate of top inclination, be equipped with the radiating window on the extension plate, the radiating window inside integrates multilayer fire -retardant metal net.

The invention belongs to the technical field of solid-state power amplifiers, and particularly relates to an air-cooled millimeter wave high-power solid-state power amplifier. According to the technical scheme, the air cooling type millimeter wave high-power solid-state power amplifier comprises an upper cover plate, a heat dissipation base and a bottom frame which are sequentially connected from top to bottom, a circuit function unit is installed in the heat dissipation base, the bottom of the heat dissipation base is connected with an efficient heat dissipation air channel, and the efficient heat dissipation air channel is arranged in the bottom frame. A fan assembly is further connected between one side of the bottom frame and the heat dissipation base. The invention provides an air-cooled millimeter-wave high-power solid-state power amplifier, aiming at solving the technical bottlenecks of light miniaturization and efficient heat dissipation of the millimeter-wave high-power solid-state power amplifier.

This utility model discloses a surface-mount high-power RGB LED chip, relating to the field of lighting technology. It includes: a bracket on which multiple LED chips are connected via wire bonding; and an IC control chip, where the multiple LED chips are connected in series to the electrodes of the IC control chip. The IC control chip outputs signals to control the color switching and gradation of all LED chips, making each LED chip an independent pixel. The multiple LED chips employ a 3-pin or 6-pin series structure, reducing current by increasing voltage to decrease heat and increase power. This surface-mount high-power RGB LED chip, through flexible series connection of LED chips and a highly efficient heat dissipation thermoelectric separation structure, significantly improves the power and brightness of the LED chip, meeting the needs of automotive lights, stage lights, and special lighting products for high-brightness illumination and rich lighting effects.

The utility model relates to the technical field of lamp boxes, in particular to an intelligent internet of things lamp box which comprises a lamp box body, three triangular supporting plates are rotatably connected to the top of the inner wall of the lamp box body at equal intervals, a transmission groove is formed in the lamp box body, a polished rod is rotatably connected to the interior of the transmission groove, and three first bevel gears are fixedly connected to the outer portion of the polished rod at equal intervals. Three rotating rods are rotationally connected to the bottom of the inner wall of the lamp box body at equal intervals, and the tops of the rotating rods are fixedly connected with the bottoms of the corresponding triangular supporting plates. The beneficial effects of the utility model lie in that through the collaborative display of a plurality of display screens, the information can be more effectively transmitted, the coverage rate and attraction of the information can be improved, and the complex information can be decomposed and displayed, so that the audience can understand and absorb more easily, the display content can be quickly adjusted and optimized according to different occasions or requirements, and the personalized display can be realized; and more diversified application scene requirements are met, and compared with a traditional device, the operation quality and the use efficiency are greatly improved.

The invention discloses an energy storage module with precise voltage regulation and constant current, and belongs to the technical field of power electronics and energy storage. The module comprises an energy storage device module and a modulation protection module. According to the modulation protection module, linear voltage regulation of a semiconductor switching device and forward voltage drop of a diode are connected in series to form a hybrid modulation circuit, and continuous and dynamic control over the output voltage and the charging current of the energy storage module is jointly achieved. According to the invention, the problem that the existing battery module can only realize on-off control and cannot realize efficient and accurate voltage regulation and constant current is solved, the power processing capability and the system reliability are remarkably improved, and the system can be widely applied to aviation ground power supplies, airborne storage batteries and occasions requiring power buffering.

The embodiments of the present disclosure provide a storage and charging system based on an AC / DC hybrid busbar architecture and a working method thereof; they relate to the field of photovoltaic storage and charging technology. The method includes a DC charger module obtaining charging requirements and transmitting them to an energy management module; the energy management module receives the charging requirements and controls the power storage module or the AC / DC conversion module to charge the DC charger module by controlling the switch of the grid-connected module according to the photovoltaic power generation situation and the storage and charging system parameters; the AC / DC conversion module obtains the power characteristic value of the DCDC power module in the DC charger module and matches the charging power requirement; the DCDC power module converts the input side DC voltage into a DC voltage that meets the charging requirements according to the matched power characteristic value. The system has a compact structure and strong heat dissipation capability, can efficiently utilize new energy for power generation, solves problems such as photovoltaic nearby consumption, heavy load in the substation area, reverse heavy overload in the substation area, three-phase imbalance, overvoltage and peak-valley load difference of the power grid, and avoids energy loss caused by AC / DC conversion.

The present invention relates to the field of radio frequency technology, and discloses a coaxial connection device, a detection method and a control system for high-frequency current detection. The coaxial connection device body has a coaxial connection structure and a shielding layer jacket; a detection shunt resistor, which is embedded in series on the shielding layer jacket and is used to detect the radio frequency current flowing through the coaxial connection device; a resistance shielding layer, which is arranged in the concentric inner and outer circles of the detection shunt resistor, is used to shield the high-frequency radiation from the core conductor of the coaxial connector and the external interference radiation, wherein one end of the resistance shielding layer is connected to one end of the detection shunt resistor, and the other end is suspended; an impedance matching element, which is connected to an output end of the detection shunt resistor, is used to match the input impedance of the subsequent circuit or detection instrument equipment; and a signal output end is used to output the detected current signal through a small coaxial connector or lead. The problems of accuracy, power consumption, temperature drift and impedance matching in high-frequency current detection are solved, and high-precision detection of high-frequency current is achieved.

The invention belongs to the field of pressurized water reactor serious accident analysis, and discloses an integrated ellipsoidal lower end socket model for serious accident analysis and a modeling method.According to the method, an approximate assumption that an ellipsoidal lower end socket is a rotary ellipsoidal shell is adopted, node division is conducted on the ellipsoidal lower end socket, and key geometric information of the ellipsoidal lower end socket is calculated; calculating transverse and radial heat exchange areas of an ellipsoidal lower seal head, the volume of a lower seal head section, the volume of a lower cavity unit connected with the lower seal head and the heat transfer area of a molten pool; and finally, an ellipsoidal lower end socket model is constructed. By adopting the method, the ellipsoidal lower end socket can be modeled correctly, and more accurate lower end socket model parameters are provided for integrated serious accident prediction and analysis of deformation failure behaviors of the lower end socket; the problems that an existing lower end socket model is poor in modeling precision of an ellipsoidal lower end socket and cannot model a deformed lower end socket are solved.

The invention relates to an active equalization circuit and method for adjusting battery voltage difference in real time. The active equalization circuit comprises a battery pack, a voltage difference sampling module, a control module, a driving module, a switch management module and a plurality of carrying capacitors. In every two adjacent battery elements, the power output end of one battery element is connected with the first power input end of the switch management module, the first power output end of the switch management module is connected with the first end of the carrying capacitor, and the second end of the carrying capacitor is connected with the second power input end of the switch management module. The second power output end of the switch management module is connected with the power input end of the other battery element. And the carrying capacitor is used as an energy carrier, so that the mode of discharging excess energy through a resistor in the traditional passive equalization is avoided, the excess electric quantity of the battery is directly transferred to the battery needing to be supplemented, and the energy utilization rate is greatly improved through the design. The active and intelligent battery equalization is realized, and the design requirements of high efficiency, energy conservation and environmental protection are met.

The utility model discloses a modularized explosion-proof frequency converter machine core structure, which comprises a fixed frame body, a machine core body, a power distribution module, a control module and a water cooling assembly, two groups of first mounting grooves are arranged at the upper end of one side of the fixed frame body, the power distribution module is fixedly connected in one group of first mounting grooves, and the control module is fixedly connected in the other group of first mounting grooves. A plurality of first mounting grooves are formed in the fixed frame body, a control module is fixedly connected in the other group of first mounting grooves, a plurality of second mounting grooves are formed in the fixed frame body located below the first mounting grooves, movement bodies are fixedly connected in the second mounting grooves, and water cooling assemblies are arranged in the first mounting grooves and the second mounting grooves. The utility model aims to provide the modularized explosion-proof frequency converter machine core structure which is convenient to disassemble and assemble, easy to maintain and overhaul and excellent in heat dissipation effect.

The utility model relates to the technical field of modular communication, and discloses a modular communication device which comprises a machine frame, the inner wall of the machine frame is fixedly connected with a connecting plate, the outer wall of the machine frame is fixedly connected with a communication module body, and a quick release assembly is arranged in the communication module body. The quick release assembly comprises a second connecting block, the second connecting block is arranged on one side of the outer wall of the communication module body, one end of the second connecting block is fixedly connected with a connecting ring, the outer wall of the connecting ring is provided with a spring, the inner wall of the connecting ring is fixedly connected with a second quick release rod, and the outer wall of the second quick release rod is fixedly connected with a first quick release rod. According to the utility model, the second connecting block is arranged in the first quick-release rod, the first quick-release rod is horizontally drawn out at the moment, and the communication block is quickly detached, so that the module can be mounted or replaced in a short time. And the dependence on special tools can be reduced, and the operability of the system in an emergency or field environment is improved.

The utility model discloses a disinfection equipment, including main part, disinfection lamp board and circuit board, wherein, be equipped with the disinfection cabin in the main part, disinfection cabin installs in the main part, form disinfection chamber in the disinfection cabin, the wall surface of disinfection cabin is penetrated and has the lamp hole, disinfection lamp board installs disinfection cabin outer wall surface, disinfection lamp board is equipped with disinfection lamp and with first electric connection department of disinfection lamp electricity is connected, disinfection lamp is assembled in the lamp hole, circuit board is connected in disinfection lamp board, circuit board is equipped with second electric connection department, second electric connection department with first electric connection department elasticity resistance top and electricity is connected, the utility model discloses through above -mentioned scheme, and the first electric connection department of disinfection lamp board and the second electric connection department of circuit board realize electricity connection through the mode of elasticity resistance and contact, need not carry out the soldering operation, has simplified production technology, and the mode of elasticity resistance and contact can guarantee that first electric connection department and second electric connection department effective electric contact, avoided the problem that the contact is not good caused by assembly error.