57 results about "Fan-in" patented technology

Provided in the present disclosure are a power-reduction control method and apparatus for a wind power plant, and a controller and a storage medium. The power-reduction control method comprises: in response to the frequency of a grid-connected point being greater than an over-frequency threshold parameter, determining a full-field power reduction amount that needs to be adjusted by means of a wind power plant; calculating an inertia adjustment time; and in response to the inertia adjustment time being less than or equal to an adjustment time parameter, generating a first control instruction, wherein the first control instruction is configured to instruct a fan in the wind power plant to reduce power in a power-reduction manner of using non-braking resistance.

This application discloses a control method for an outdoor fan in a refrigeration device and the refrigeration device itself, belonging to the field of refrigeration equipment. The control method for the outdoor fan in the refrigeration device includes: setting the rotor starting current and frequency through a controller to control the operation of the outdoor fan; when the actual rotational speed of the rotor is greater than or equal to a speed threshold, obtaining the absolute value of the rotor's position angle deviation; when the absolute value of the angle deviation is less than a set threshold, controlling the operation of the outdoor fan based on a dual-closed-loop control algorithm; and when the absolute value of the angle deviation is greater than or equal to the set threshold, controlling the operation of the outdoor fan based on the difference between the set angle deviation value and the absolute value of the angle deviation. The control method for the outdoor fan in the refrigeration device of this application can reduce the risk of start-up synchronization failure, vibration, and driver overcurrent during the start-up phase of the outdoor fan, improve the success rate of normal switching of the dual-closed-loop control of the outdoor fan, and improve the reliability of the outdoor fan start-up.

This invention belongs to the technical field of abnormal detection of fan fixing devices in subway tunnels. It proposes a method and system for diagnosing loose fixing devices of axial flow fans in subway tunnels. By registering a reference image of the fan fixing device under normal reference conditions with an image to be inspected collected during subway operation, the true relative displacement of the fan fixing device relative to the normal reference state can be accurately obtained. This avoids misjudging external environmental interference as device loosening and solves the problem that existing deep learning models have difficulty in handling dynamic scene noise and positional offset.

The application discloses a fan device and a server, relates to the technical field of servers, and the fan device comprises a mounting seat; two mounting frames are arranged at intervals on the mounting seat, and the mounting frames are used for placing fan modules; a wire passing channel for accommodating cables is formed between the two mounting frames, and the wire passing channel comprises a channel section and an opening section; a flow blocking assembly comprises a fixing seat and a blocking piece, the fixing seat is located in the wire passing channel and is connected with the two mounting frames respectively, the fixing seat extends along a first direction and covers the top of the channel section; the blocking piece is slidably arranged on the fixing seat, at least part of the blocking piece is slidably connected with the two mounting frames along a second direction and abuts against the cables to cover the opening section, so that the flow of fluid passing through the gap between the wire passing channel and the cables is limited; wherein the first direction and the second direction are arranged at an included angle. The application at least solves the technical problem that the server fan in the related art can produce backflow, thereby causing poor heat dissipation effect.

This application discloses a control method, device, storage medium, and electronic equipment for air source heat pump units, relating to the field of heat pump technology. Multiple air source heat pump units share a common air cavity. When a unit fails and shuts down, the type of fault is determined. If the fault is not fan-related, the operating mode of the fan in the failed unit is controlled based on the outdoor ambient temperature to balance the pressure within the air cavity. If the fault is fan-related, the compressor frequency of the multiple air source heat pump units is controlled based on the outdoor ambient temperature to match the compressor frequency with the airflow within the air cavity. This application can effectively improve the operational continuity and reliability of multi-system air source heat pump units with non-independent air cavities, enhancing the user experience.

The utility model discloses a computer electronic control temperature regulator relates to computer technical field. This computer electronic control temperature regulator includes regulator mainboard, bearing frame, clamping seat, card block, locking unit. This computer electronic control temperature regulator adopts the clamping design of clamping seat and card block, and the plug -in design of power supply plug and power supply socket, makes the installation and disassembly of the cooling fan become simple and fast, need not use screwdriver and other additional tools, has improved the efficiency of installation and maintenance greatly, through setting locking unit, it is convenient to realize quick locking or unlocking to card block and cooling fan, and the operation is simple and convenient, and locking effect is stable and reliable, effectively prevented the loosening of cooling fan in the operation process, and the temperature regulator can also easily cope with the maintenance and replacement demand of cooling fan under the multiple computer use scene, greatly shorten the maintenance time, improve the work efficiency.

This application provides a fan control circuit, comprising: a power supply control module connected to the fan's power supply terminal, used to provide power voltage to the fan in response to a power supply signal; and a fan control module connected to the fan's control terminal, used to input control signals to the fan in response to a drive signal. The power supply control module includes an isolating switch unit and a current-limiting switch unit. The isolating switch unit controls the current-limiting switch unit to conduct in response to the power supply signal, and the current-limiting switch unit disconnects when the current exceeds a set threshold. This application isolates the high-voltage power circuit from the low-voltage control circuit, improving the safety of the fan control circuit. Furthermore, it can automatically disconnect the circuit in case of a short circuit or overload fault in the fan's internal circuitry, thereby helping to prevent damage to the fan control circuit.

The application discloses a kind of air-cooled radiator fan rotating speed control method and system, it is related to fan control technical field, its method includes: the vibration acceleration data on the controller circuit board of multiple fan array is collected;Fan system is currently based on the vibration acceleration data evaluation vibration state;Based on the vibration state adjustment multiple fan array Synchronization error allowable range;Real-time rotating speed information of each fan in the multiple fan array is obtained;Based on the synchronization error allowable range and the real-time rotating speed information of each fan Signal correction instruction is generated;Based on the signal correction instruction, the rotating speed of each fan in multiple fan array is adjusted, and the embodiment of the application has the advantages that the synchronization error allowable range is adjusted dynamically, effectively cope with the rotating speed synchronization control challenge of fan system under different vibration states, avoid the instability of control system and the disadvantage of hardware degradation caused by mechanical resonance.

The utility model relates to fan technical field, concretely is a kind of multi-scene application fan.A kind of multi-scene application fan, including: fixed on the hanging plate of building wall;Bearing plate, the bearing plate is detachably connected in hanging plate one side;Telescopic telescopic piece, the telescopic piece is hinged on bearing plate;L-shaped support arm, the support arm one side is hinged on telescopic end of telescopic piece;Fan body, the fan body is hinged in the other side of support arm;Angle limiting structure, the limiting structure includes first locking assembly, second locking assembly and third locking group.The utility model has the beneficial effect that: the structure of this through hanging plate and be fixed on building wall and with bearing plate detachably connected, realized the quick switching between fan in wall hanging and floor two use scenes, greatly expanded application range, satisfies the use demand of user under different environment.

The present disclosure provides a fan control method, a fan control device, an electronic device and a storage medium. The method comprises: determining a plurality of first target fans that have failed according to the operating parameters of each fan in a multi-fan device; determining the failure type corresponding to each first target fan according to the failure duration and / or the cumulative number of failures of each first target fan; determining the recovery strategy corresponding to each first target fan according to the failure type corresponding to each first target fan; and executing the recovery strategy corresponding to each first target fan according to the recovery priority of each first target fan; wherein the recovery priority represents the degree of influence of each fan on the operation of the multi-fan device. The present disclosure can realize differentiated recovery processing of multiple failed fans, effectively adapt to the actual needs of different failure scenarios, and improve the overall operation reliability and failure recovery efficiency of the device.

An electrical conducting plate structure for axial fan includes a fan having a frame that internally defines an airflow passage; a base, a plurality of stationary blades, and a plurality of and conductor thin plates provided in the airflow passage; and a circuit board mounted on the base. The stationary blades are extended between and connected to the frame and the base, and the conductor thin plates are located between two adjacent stationary blades to extend across the airflow passage with two ends connected to the circuit board and the fan frame respectively. Since the conductor thin plates respectively have a thin and flat configuration, their upwind area against the airflow flowing through the airflow passage is minimized, which effectively reduces the fluid resistance in the airflow passage and enables upgraded fan static pressure and output air volume and reduced noise possibly produced by the fan in operation.

A fan electronic control unit for a cooling system has a plurality of modular heat exchanger modules, where each modular heat exchanger module is provided with a cooling fan. The fan electronic control unit is provided with an input for receiving a fan control signal from a power source, where the fan electronic control unit is arranged to control the cooling fans in dependency of the fan control signal and the number of cooling fans.

The present disclosure relates to the technical field of fan monitoring, and particularly relates to a fan group abnormality monitoring method, system, device and storage medium. The method comprises the following steps: collecting running parameters of each fan in a fan group at a sampling time point; dividing the fan group into at least one reference group according to a division dimension; establishing a group statistical benchmark for the running parameters in a target reference group in the at least one reference group; performing horizontal comparison between the group statistical benchmark and the running parameters, establishing a historical benchmark for each fan, performing vertical comparison between the historical benchmark and the running parameters, and obtaining a comparison result; calculating a relative performance degradation index of a target fan based on the comparison result, and obtaining an abnormality monitoring result corresponding to the target fan when the relative performance degradation index is greater than or equal to a preset alarm threshold. The fan abnormality is detected in advance, the maintenance replaces the emergency repair, and the loss caused by unexpected shutdown is reduced.

This invention provides a process mapping method and system based on priority cut sets to solve the problems of huge computational resource consumption and poor scalability caused by exhaustive cut enumeration in existing process mapping methods. The invention first obtains the logical network to be mapped; then, it optimizes the network through multiple iterative mapping passes. In each pass, for each node in the network, candidate cut sets are generated by merging a finite number of priority cut sets of its fan-in nodes, and new priority cut sets are selected from the candidate cut sets according to a dynamic priority ranking criterion; finally, a mapped netlist is generated based on the finally determined representative cut sets. This invention avoids exhaustive search by only calculating and storing a small number of optimal cut sets, significantly reducing the time and space complexity of the algorithm. At the same time, the multi-pass iteration and dynamic optimization strategy ensures high-quality mapping results, making it particularly suitable for the design of large-scale, complex integrated circuits.

This application relates to a fan control method, device, lamp, and storage medium. By acquiring the lamp's current position information, and based on the first position information and a preset correspondence, a first target fan in the lamp's operating state and a first standard rotational speed of the first target fan are determined. The lamp's fan is then controlled based on the first position information, the second position information from the previous moment, the first target fan, and the first standard rotational speed. The preset correspondence includes the relationship between position information, the fan, and the operating rotational speed. This application determines the lamp's operating process using both first and second position information, replacing single position information as the fan control condition. This more intelligently and optimally optimizes the relationship between the lamp's operating state and the fan's logical control, effectively avoiding fan start-up errors during transitions between lamp sections and fan switching critical points, and effectively improving heat dissipation.

This invention proposes a generator cooling system employing a variable frequency fan. By using a variable frequency fan to form a variable frequency heat dissipation system, the cooling system's heat dissipation rate is controlled according to the ambient temperature, thereby achieving engine cooling. The application of variable frequency fans in generator cooling systems offers significant advantages, primarily reflected in dynamic speed regulation, energy efficiency, and precise temperature control. Using variable frequency fans not only improves the efficiency and reliability of the cooling system but also significantly reduces energy consumption and maintenance costs, providing a strong guarantee for the long-term stable operation of the generator set.

The application discloses a wind wall air conditioner and a control method, device, equipment and medium thereof, so as to ensure uniform air supply temperature of the wind wall air conditioner under low load. The wind wall air conditioner comprises a fan module, a compressor, a condenser, two evaporators and electronic expansion valves connected with the two evaporators respectively, wherein the fan module comprises two groups of fans, each group comprising a plurality of fans, the fans in the fan module are arranged in the same plane, and a partition plate is arranged between adjacent fans; the two evaporators are connected in parallel between the compressor and the condenser, and each evaporator is arranged in parallel with at least one group of fans.

This utility model provides a multi-purpose desktop fan, including a main housing with a central mounting cavity where an electric fan is rotatably mounted. A touch display component is fixedly mounted at the center of the front of the fan frame. A lighting component is fixedly embedded in the top of the main housing, and a speaker is installed inside the main housing. This utility model effectively overcomes the limitation of existing desktop fans in terms of single-function operation by integrating the touch display component, top lighting component, and built-in speaker into the main housing. This allows the product to not only provide the core airflow function of a traditional fan but also meet multiple user needs such as ambient temperature adjustment, information display and convenient operation, entertainment, or information broadcasting, greatly enriching the functionality of the desktop fan and significantly improving the user experience and comfort.

A computer system comprising a chassis containing at least one heat-generating computing component, at least one heat dissipating fan contained within the chassis configured to convectively cool the at least one heat-generating computing component, and at least one muffler positioned at an inlet or outlet of the at least one heat dissipating fan. The at least one muffler comprises an inlet, an outlet, a main duct extending between the inlet and the outlet, at least one resonance chamber peripherally surrounding the main duct, and a plurality of apertures in the main duct configured to allow air and sound to flow and transfer between the main duct and the at least one resonance chamber.

The application relates to the field of fan noise reduction technology, and particularly discloses an active noise reduction device for a portable fan, which comprises a signal collector arranged in a cavity of the portable fan and used for collecting noise signals generated by the portable fan in real time when the portable fan is running; a signal processor arranged in the cavity and electrically connected with the signal collector, used for calling a pre-trained noise reduction model to perform noise control processing on the noise signals, and obtaining noise control instructions; and a signal generator arranged in the cavity and electrically connected with the signal processor, used for obtaining the noise control instructions and emitting noise reduction signals according to the noise control instructions to perform active noise control on the portable fan; wherein, within a preset error allowable range, the noise reduction signals and the noise signals are opposite in phase, same in frequency and same in amplitude, and are used for performing destructive interference on the noise signals. The application realizes destructive interference on the noise signals by emitting the noise reduction signals, so that the noise level during the running of the fan is reduced.

The application discloses a case device and a server, and relates to the technical field of servers.The case device comprises a case body with a heat dissipation plate wall, a heat dissipation fan is arranged in the case body, a mounting assembly is arranged in the case body opposite to the heat dissipation plate wall, the case body comprises an inner wall structure between the heat dissipation plate wall and the mounting assembly, the inner wall structure, the heat dissipation plate wall and the mounting assembly form a noise reduction space, the heat dissipation fan is arranged in the noise reduction space and faces the mounting assembly, and the side, away from the noise reduction space, of the mounting assembly is used for mounting a hard disk; a first noise reduction assembly is arranged on at least part of the mounting assembly; and a second noise reduction assembly is arranged on at least part of the inner wall structure and used for absorbing noise emitted by the heat dissipation fan.The technical problem that the noise of the heat dissipation fan in the case greatly affects the performance of the hard disk in the prior art is solved, and the technical effect that the noise of the heat dissipation fan is reduced while not affecting the normal heat dissipation of the hard disk is achieved.

The application discloses a fan sound insulation, noise reduction and heat dissipation integrated device for remote monitoring and intelligent regulation and control, relates to the technical field of fan noise control and heat dissipation integration, and comprises a signal acquisition module, an acoustic analysis module, an interference identification module, a parameter adjustment module and a dynamic anti-misoperation triggering control module.The signal acquisition module acquires impact sound signals, vibration signals and airflow change data in a fan operation environment, arranges all the acquired signals in time sequence, eliminates stable background noise and generates impact sound time sequence data sets.Through multi-source signal acquisition and time sequence analysis, the application realizes the differentiation of external impact sound and equipment operation sound, prevents frequent start and stop caused by misoperation self-checking, adjusts operation rhythm through interference coupling calibration, introduces double confirmation sampling, a silent window and flexible start control, and ensures the stable operation of the fan in a complex environment and prolongs the service life.

The application discloses a fan simulation method and device, equipment, storage medium and program product, and relates to the technical field of water heaters. The method comprises the following steps: determining an interaction interface of a target fan and an interaction parameter corresponding to the interaction interface; constructing a control body model of the target fan according to the interaction parameter, wherein the control body model is used for describing the corresponding relationship between the interaction parameter and the output of the target fan; and based on the interaction interface and the control body model, a fan twin model corresponding to the target fan is built, which is used for executing a fan simulation operation. The application aims to establish a digital twin model corresponding to the fan in the water heater, so as to improve the product development efficiency of the fan.

The application provides a method for building a 9-bit parity check molecular switch circuit, and the steps are as follows: based on DNA strand displacement technology, the structure and reaction mechanism of the molecular switch circuit are described; the reaction rate and leakage rate are set, and the input signal of the molecular switch circuit and the concentration ratio of the molecular switch at each stage are optimized; the fan-in molecular switch circuit and the fan-out molecular switch circuit are set according to the molecular switch circuit; the 3-bit parity check molecular switch circuit is built based on the fan-in molecular switch circuit and the fan-out molecular switch circuit by using the switch canvas routing strategy, the 9-bit parity check molecular switch circuit is built by using three 3-bit parity check molecular switch circuits with the same structure; and the correctness of the 9-bit parity check molecular switch circuit is verified by using a Simbiology simulation platform. In the construction of a large-scale complex logic circuit, the application has a simple and unified DNA chain structure, a fast reaction speed and good stability, and provides a new scheme for the construction of a modular DNA circuit.

This invention discloses a defrosting control method, device, computer equipment, and storage medium for a roof-mounted air conditioner in an electric bus. The method includes: if a forced defrosting command is received within a preset power-on time, closing the four-way valve in the air conditioner, controlling the compressor in the air conditioner to enter the start-up operation phase, and controlling the evaporator fan in the air conditioner to operate at the highest fan speed; if a preset first condition is met after the compressor enters the start-up operation phase, controlling the compressor to enter a frequency-increasing operation phase; if a preset second condition is met after the compressor enters the frequency-increasing operation phase, controlling the compressor to enter a high-frequency defrosting operation phase; if a defrosting exit condition is met, controlling the compressor to enter a frequency-reducing operation phase, and ending forced defrosting when a preset third condition is met. This invention can automatically clear snow accumulation on the vehicle roof or frost from the condenser before the vehicle travels, improving efficiency and ensuring safety.

This invention discloses a system and method for suppressing hydrogen leakage and diffusion using a fan-driven system. The method includes acquiring first hydrogen concentration measurement data based on a first preset direction of a fan array; acquiring second hydrogen concentration measurement data based on a second preset direction of the fan array under fan drive; triggering a drive control command based on the first hydrogen concentration measurement data and a preset command triggering mechanism to drive a first number of fans in the fan array to operate at a first speed and obtain a first operating result; comparing a preset hydrogen concentration threshold with the first and second hydrogen concentration measurement data respectively, and controlling a second number of fans in the fan array to operate at a second speed based on the data comparison result and the first operating result. This invention can effectively control the number of fans started and the fan speed, forming a reverse airflow to disperse the hydrogen, greatly reducing the effect of hydrogen leakage and diffusion into the nuclear power plant.

This invention discloses an on-chip adjustable intensity equalization 90-degree optical mixer and its design method. The device is arranged along the optical path as follows: an input fan-in structure, an input tapered transition structure, a 4×4 multimode interference region, an output tapered transition structure, and an output equal-path fan-out structure. The output equal-path fan-out structure incorporates an on-chip adjustable intensity equalization structure. The four output branches of the output equal-path fan-out structure are each integrated with the on-chip adjustable intensity equalization structure. An asymmetric tapered input adjusts the incident mode field to satisfy the MMI four-image self-image condition. The 4×4 multimode interference region generates two sets of four-way mixed output beams with a 180° phase difference and 90° orthogonality between sets. This invention independently controls the electrically controlled transmittance of each output path through the on-chip adjustable intensity equalization structure, dynamically compensating for output power imbalances caused by fabrication, packaging, and environmental drift, thereby improving balanced detection performance.