310 results about "Dual loop" patented technology

The invention relates to the technical field of artificial intelligence, can be applied to business scenes such as financial science and technology and medical health, and discloses a generation optimization method and device based on dynamic verification feedback, equipment and a medium, and the method comprises the steps: pre-training a verification network used for analyzing and generating content quality; constructing a dynamic reward space containing orthogonal reward components; integrating the dynamic reward space into a generative model to form a real-time verification loop, and injecting verification signals into a plurality of processing layers; optimizing an exploration strategy of the generative model according to the verification signal; executing double-loop feedback control based on the real-time verification loop and the optimized exploration strategy, dynamically adjusting training parameters, and generating a target model; and outputting a reasoning result based on the target model. By constructing a real-time verification loop and an optimization strategy, a double-loop feedback control mechanism is realized, a verification signal is introduced into a training process, a training error and a strategy deviation are dynamically responded, and the training efficiency of the generative model is improved by combining rapid and slow adjustment paths.

The invention relates to the technical field of spraying control, in particular to an anti-corrosion steel pipe inner spraying track self-adaptive control system based on multi-sensor fusion. The feed-forward prediction module generates a feed-forward correction signal through a model compensator and a self-adaptive compensator and predicts and compensates system errors, the feedback control module comprises a track generator and a disturbance observer, a feedback control instruction is generated by comparing a correction track with an original track, an execution mechanism is dynamically adjusted, and the system error is predicted and compensated. The signal driving module adopts a frequency domain decoupling fusion technology, combines a feedforward correction signal and a feedback control instruction, generates a composite control instruction, and ensures the accuracy of trajectory tracking control. According to the invention, through a double-loop control architecture combining feedforward prediction and feedback disturbance suppression, high-precision and strong-robustness self-adaptive control of a spraying track under a complex working condition is realized.

The invention provides a cooperative distribution method, system and device for vehicle-mounted double-loop liquid cooling refrigerating capacity and a medium, and relates to the technical field of electric vehicle liquid cooling. Determining the confidence value of the refrigerating capacity in the battery cell cooling loop according to the thermal power net increment in the electric vehicle and the temperature distribution gradient in the battery cell; when the temperature of the power device in the power conversion module is larger than a preset safety threshold value, balance adjustment is conducted on the real-time refrigerating capacity of the power conversion module, and the balance characteristic of the refrigerating capacity in a cooling loop of the power conversion module is obtained; and the liquid cooling refrigerating capacity in the double cooling loops is cooperatively redistributed according to the balance characteristic of the refrigerating capacity in the cooling loops of the power conversion module and the confidence value of the refrigerating capacity in the battery cell cooling loops. Based on the scheme, balanced distribution of the refrigerating capacity between the battery cell cooling loop and the power conversion module cooling loop in the electric automobile can be achieved.

The invention discloses a fire alarm and access control linkage method and system. The method comprises the steps of signal receiving and verification, target access control determination, intelligent control release execution, anti-interference processing and cross-brand adaptation. The system comprises a multi-channel signal transmission module, a double-loop verification module, a central control unit, an intelligent control release execution module, a secondary release trigger module, an anti-interference processing module and a protocol adaptive conversion module, the problem of signal interruption caused by dependence of a traditional single channel is solved; the intelligent unlocking execution module ensures thoroughness in unlocking through graded current monitoring and a secondary release mechanism; the anti-interference processing module adopts differential coding and frequency hopping communication to resist electromagnetic interference; the protocol adaptive conversion module realizes seamless integration of multi-brand equipment, reduces the cost and maintenance difficulty, and improves the reliability and practicability of the system.

The invention relates to the technical field of lithium ion battery thermal management, and discloses a lithium ion battery liquid cooling and heating management system and a multi-objective optimization design method thereof. The method comprises the steps that an electricity-heat-flow coupling simulation model is established and verified; determining design variables and sampling to obtain a performance index sample set; training an agent model to establish rapid mapping from variables to indexes; and carrying out multi-objective optimization based on the proxy model to obtain a Pareto solution set and deciding a final scheme. The system is an entity designed by adopting the method, and comprises a battery module, a bottom liquid cooling plate with a built-in liquid cooling pipe and an independent liquid cooling pipe surrounding the outer side of the module. By integrating simulation, an agent model and multi-objective optimization, the problem that multi-objectives such as temperature uniformity, energy consumption and structure compactness in liquid cooling system design are difficult to collaboratively optimize is solved, the crossing from experience trial and error to automatic global optimization is realized, the designed double-loop cooling system ensures heat dissipation safety, and the design efficiency is improved. The energy consumption and the material cost are obviously reduced.

The invention provides an energy storage station trusted supply chain and command physical consistency verification method and device. The method comprises the following steps: setting a trusted platform module or a security element in a key device of the energy storage station, and generating a device trusted state identifier; adding a time quality identifier and a source signature to the measurement and state data; identity authentication, protocol analysis, object address and parameter range verification and rate constraint verification are carried out on the remote control instruction; generating a feasible region according to state estimation and equipment constraint, and performing executable judgment on the instruction; when any link does not meet the preset condition, switching to a verifiable security state and blocking a remote write-in path; and when the command firewall and the physical consistency check are both passed, a control instruction is issued to the converter control device and the battery management system, and power, reactive power and grid-connected and off-grid control of the energy storage station is executed. According to the application, supply chain credible closed loop, metering linkage access and double-loop instruction verification can be realized, and failure safety and verifiable evidence obtaining are supported.

The invention relates to the technical field of coal mine safety and intelligent power supply, and discloses a coal mine safety risk data driving evaluation system, method and device and a medium. And then ultra-short-term prediction and risk level evaluation of load fluctuation are realized by using a data driving technology, a dynamic detection model is constructed by combining the importance degree of the load and voltage sensitivity characteristics, and the single / double-loop power supply quality is accurately analyzed. The system has a network topology change online identification capability, network equivalent impedance in different scenes can be rapidly calculated, and an energy storage device configuration strategy is formulated for a high-risk area to optimize power supply quality. Three operation modes of normal state detection, early warning disposal and catastrophe emergency are innovatively set, the working state is automatically switched through an online identification result, and the whole-process intelligent management and control from real-time monitoring and risk assessment to active disposal is realized.

The invention discloses a phase change photovoltaic waste heat cooperative control method and system for an energy storage power station, and relates to the technical field of power supply waste heat control. The phase change photovoltaic waste heat cooperative control method and system for the energy storage power station comprises the steps that S1, multi-point heat energy state data, working medium circulation data and multi-dimensional environment data are collected and preprocessed, and a standardized energy storage state data set is constructed; s2, analyzing heat flow characteristics between the output of the condenser and the power load to obtain a pump regulation rotating speed value, and regulating the operation rotating speed of the working medium pump; s3, evaluating the photovoltaic power generation stability to obtain a photovoltaic output power value, and adjusting an output power distribution strategy; and S4, evaluating an energy storage load response state to obtain a phase change regulation and control decision value, and regulating and controlling an energy release rhythm. The problems that heat management of an existing energy storage power station depends on traditional double-loop phase change immersed cooling, only the heat dissipation problem is solved, however, a mechanism is lacked in the aspects of energy recovery and comprehensive utilization, and a secondary conversion and utilization path of energy is not formed are solved.

The invention provides an intelligent explosion-proof motor system based on multi-modal temperature sensing and double-loop heat dissipation, and belongs to the field of explosion-proof motors, and the system comprises a temperature sensing module which is used for obtaining and processing multi-modal sensing data of each monitoring point in real time, and obtaining the fusion temperature of each monitoring point; the temperature prediction module is used for performing temperature trend prediction according to the fusion temperature; the event division module is used for performing event grade division according to the fusion temperature and the predicted temperature and determining a temperature control event grade; the double-loop heat dissipation control module is used for intelligently switching the working state of a heat dissipation loop according to the temperature control event level; and the safety protection module is used for continuously monitoring the effect of the double-loop heat dissipation control module, and when a safety protection condition is triggered, the explosion-proof motor is shut down and emergency heat dissipation protection is started. According to the invention, reasonable configuration of overall heat dissipation resources of the explosion-proof motor is realized, and the energy consumption of the explosion-proof motor is reduced while the heat dissipation effect is improved.

The invention relates to the technical field of power system energy storage equipment testing, in particular to a small and medium-sized industrial and commercial energy storage cabinet twin-trawling testing system which comprises a main loop, a secondary control loop and an anti-countercurrent detection unit, the main loop comprises double testing loops and four sets of alternating current contactors, and multi-machine twin-trawling testing frameworks such as one-to-one, one-trawling-two and one-trawling-three can be flexibly combined; independent switching between grid connection and grid disconnection is supported, the secondary control loop comprises a button with a lamp and a grouping reset button, and the countercurrent prevention detection unit detects the energy flow direction in real time through an intelligent electric meter and a current sensor and has a mains supply charging function. According to the test system, through a double-loop parallel test architecture and a multi-machine flexible combination design, the system can be synchronously butted with multiple energy storage cabinets to carry out parallel test, the test efficiency can be improved, and a safety system with anti-countercurrent detection, rapid mode switching and precise control protection guarantees the test safety; the arrangement of the standardized terminal and the button with the lamp simplifies the operation difficulty, and reduces the test threshold.

The invention discloses a power supply system for an energy storage power station based on an energy storage black-start function, and belongs to the technical field of energy storage power stations. The system comprises an energy storage power station grid-connected bus, a station transformer, an energy storage unit and a station power supply system. One side of the energy storage power station grid-connected bus is connected with a power grid, and the other side is respectively connected with the high-voltage side of the station transformer and the energy storage unit; the station power supply system is connected with the low-voltage side of the station transformer and the energy storage unit; when the station transformer operates normally, the station transformer supplies power to the station power supply system; when the station transformer does not operate normally, the energy storage unit supplies power to the station power supply system. Double-loop power supply of the power supply for the energy storage power station is realized, so that the power supply reliability and stability of the energy storage power station are improved, and the effect and advantages of the energy storage power station in a power grid are exerted.

The invention discloses a multivariable high-coupling hydrogen-oxygen double-loop coordination control method for a hydrogen fuel cell, and the method comprises the following steps: S1, building a flow and pressure coupled nonlinear high-order system model according to cathode and anode gas kinetic equations of a fuel cell system; s2, designing a multivariable coordinated backstepping controller by taking the peroxide ratio, the hydrogen ratio and the positive and negative pressure difference as control targets; s3, considering the influence of load change and model uncertainty on the hydrogen-oxygen double loop, introducing a self-adaptive control method, and designing control instructions of an air compressor, a circulating pump and an electromagnetic valve; s4, selecting a proper Lyapunov function to prove the stability of the system, and completing the self-adaptive backstepping control of the pressure difference between the anode and the cathode and the gas flow; according to the method, the fuel cell hydrogen-oxygen double-loop multivariable high-coupling coordination control problem is solved, the transient and steady-state performance of the system can be kept under the condition of sudden load change, and the safety and reliability of system operation are improved.

The invention relates to the technical field of data center heat management, and particularly discloses a double-loop heat recovery immersed data center cooling system, which comprises an immersion cooling cabin, a heat recovery module, a heat recovery module, a heat recovery module and a heat recovery module, wherein the immersion cooling cabin is used for installing a server circuit board in an immersion manner; the cooling liquid circulating system is used for removing core heat of the server; a main circulating loop is formed by a variable-frequency circulating pump, a precision filter, a cooling liquid conveying valve, a spraying device, an immersion cooling cabin, a cooling liquid return valve and a refrigerating unit which are connected in sequence; the waste heat recovery cooling system is independent of the main loop and is connected to the heat storage tank through a heat exchange pipe immersed in cooling liquid, a waste heat adjusting valve and a water pump to form a secondary loop for extracting medium and low temperature waste heat; and the intelligent regulation and control module is used for collecting data and outputting a control instruction. According to the system, through immersed direct heat exchange and independent double-loop design, cooperation of server core heat dissipation and waste heat recovery is achieved, and the heat dissipation efficiency and the energy comprehensive utilization level are improved.

The invention discloses a plateau oxygen generation system and method based on multi-source fusion and collaborative optimization, and the system comprises a double-oxygen-outlet-nozzle intelligent scheduling module, a temperature adaptive double-loop control module, an altitude adaptive parameter adjustment module, a Beidou emergency rescue module, and a cross-module collaborative optimization controller. The cross-module collaborative optimization controller is used for receiving the state quantity and the error quantity of each module in real time so as to construct a joint cost function; and solving the optimal control quantity of the joint cost function, and synchronously issuing the optimal control quantity to each module for corresponding control. According to the portable oxygen generator disclosed by the invention, the comprehensive capabilities of simultaneous on-demand oxygen supply for two persons, adjustment-free at 0-5500m, full-dimension self-adaption and no-net Beidou emergency rescue are realized for the first time, and the portable oxygen generator has very good practicability.

A voltage regulation device includes: a first low-dropout (LDO) regulator, a second LDO regulator and a signal coupling circuit. The first LDO regulator is configured to receive an input voltage of the voltage regulation device and accordingly generate and stabilize an output voltage of the voltage regulation device. The second LDO regulator is coupled in parallel with the first LDO regulator, and configured to provide supplementary regulation to further stabilize the output voltage. The signal coupling circuit is coupled between the first LDO regulator and the second LDO regulator, configured to apply a voltage provided by second LDO regulator to the first LDO regulator, thereby modulating an operation of the first LDO regulator.

The invention discloses an alternating current and direct current excitation device for a pumped storage unit excitation system, which comprises a direct current excitation loop, an alternating current excitation loop, a field suppression switch and a rotor loop, and is characterized in that the direct current excitation loop and the alternating current excitation loop are connected in parallel, the output end after parallel connection is connected with one end of the field suppression switch, and the other end of the field suppression switch is connected with the rotor loop; a connection path of the alternating current excitation loop comprises an alternating current power supply, an alternating current switch, a fuse F1, a transformer and a rectifier bridge, and a connection path of the direct current excitation loop comprises a direct current power supply, a direct current switch, a fuse F2, a divider resistor R1 and a diode. Isolation and mutual crossing prevention of an alternating current circuit and a direct current circuit are achieved through a rectifier bridge of the alternating current excitation loop and a diode of the direct current excitation loop, automatic mode switching is achieved in cooperation with an excitation regulator, seamless switching to the alternating current excitation loop can be achieved when the direct current excitation loop breaks down, and it is guaranteed that the pumped storage unit is reliably started when a power grid is dispatched emergently.

The application provides an intelligent explosion-proof motor system based on multi-modal temperature sensing and double-loop heat dissipation, and belongs to the field of explosion-proof motors.The system comprises a temperature sensing module, a temperature prediction module, an event classification module, a double-loop heat dissipation control module and a safety protection module.The temperature sensing module is used for acquiring multi-modal sensing data of each monitoring point in real time and processing the data to obtain the fusion temperature of each monitoring point.The temperature prediction module is used for predicting the temperature trend according to the fusion temperature.The event classification module is used for classifying the event level according to the fusion temperature and the predicted temperature, and determining the temperature control event level.The double-loop heat dissipation control module is used for intelligently switching the working state of the heat dissipation loop according to the temperature control event level.The safety protection module is used for continuously monitoring the effect of the double-loop heat dissipation control module, and stopping the explosion-proof motor and starting the emergency heat dissipation protection when the safety protection condition is triggered.The application realizes the reasonable configuration of the overall heat dissipation resources of the explosion-proof motor, improves the heat dissipation effect, and reduces the energy consumption of the explosion-proof motor.

The invention provides a pulse power module for discharging a super capacitor, which is applied to the field of fusion. The module adopts a double-layer discrete structure and comprises a converter box and a high-voltage box which are arranged on a primary side and are mutually independent, and the high-voltage box is positioned above the converter box and is electrically connected with the converter box to form a main circuit. A water-cooling heat dissipation H-bridge converter unit and a direct-current support capacitor are integrated in the converter box; and an air-cooled radiating direct current circuit breaker and a smoothing reactor are integrated in the high-voltage box. The module is further provided with a double-loop redundant power supply system which adapts to the fusion pulse discharge working condition, electricity is taken from the input side of the high-voltage box and the direct-current bus side of the converter box respectively, and power is reliably supplied to the control unit through a high-voltage optimization strategy. The problems of complex heat dissipation management, unstable power supply, inconvenient maintenance and the like in fusion high-power pulse application are effectively solved, and the reliability and the safety of the system are improved.

The invention relates to the technical field of power supply and distribution systems, and discloses a state-aware undisturbed switching control method for a heat pipe cooling double-loop system, which comprises the following steps of: acquiring a hot node temperature and a steady-state integral operator value of a main heat dissipation distribution branch for representing a power load heat dissipation state, and synchronously monitoring cold-state temperature response data of a standby branch; constructing a dynamic thermal resistance topological model and substituting a steady-state integral operator numerical value to inversely calculate an integral preset initial value; according to the invention, the switching logic is reconstructed to an automatic control function unit logic domain, a mechanical execution dead zone and phase change latent heat hysteresis are cooperatively eliminated, and the thermal power regulation execution unit is controlled to be stable and reliable. Transient thermal pulsation of a power distribution environment is suppressed, and thermal safety of a high-power load power supply link is guaranteed.

The invention provides a parking control system and a parking control method, and relates to the technical field of automobile parking control, and the system comprises a parking gear carried on a target vehicle, a gear shifting controller and a parking controller. The gear shifting controller is connected with the parking gear through double loops, and the gear shifting controller is used for sending the fault state of the parking gear to the parking controller. The fault state of the parking gear is determined based on the electrical state of the dual circuit. And the parking controller is used for executing a parking strategy on the basis that the vehicle data corresponding to the target vehicle meets a preset condition when it is determined that the fault state of the parking gear is the two-way fault. The parking strategy includes forbidding at least one of a hydraulic control dynamic deceleration function, an electric control dynamic deceleration function and a static clamping function of the target vehicle. The parking strategy is executed when the parking gear has the two-way fault, the safety of the vehicle can be enhanced, the parking strategy is dynamically adjusted according to the vehicle data, and the flexibility of vehicle parking control can be improved.

The application relates to the technical field of power system monitoring and fault diagnosis, and discloses a corrosion degree detection method based on a mine double-loop power supply line. The method comprises the following steps: injecting a dynamic frequency modulated micro-amplitude excitation signal into the double loop; acquiring an interference characteristic spectrum and generating an anti-aliasing filter parameter through an environmental noise sensing module; separating high-frequency transient and low-frequency steady-state components by using wavelet packet decomposition and empirical mode decomposition dual-channel preprocessing; combining a deep time sequence encoder embedded with an electrochemical model prior to extract corrosion features, and reconstructing a pure corrosion signal through an interference suppression decoder driven by an attention mechanism; and finally outputting a quantitative index by a corrosion rate inversion model and triggering a graded early warning. The system comprises a signal injection unit, a noise sensing module, a dual-channel preprocessing unit, a deep encoding-decoding network and an early warning module. The application significantly improves the accuracy and robustness of corrosion detection through multi-scale feature decoupling, physical constraint modeling and noise adaptive suppression.

The invention discloses a double-loop energy storage temperature control system and method, and relates to the technical field of heat management of energy storage systems. The system comprises a first heat management loop, a second heat management loop and a temperature control loop, the second thermal management loop is used for adjusting the temperature of the converter; the first heat exchange component is arranged between the first heat management loop and the second heat management loop and is used for realizing non-contact heat exchange between the first heat management loop and the second heat management loop; the first flow path switching element is used for establishing or disconnecting a first non-contact heat exchange path passing through the first heat exchange component; the control unit is used for performing coordinated control on the operation states of the first thermal management loop and the second thermal management loop based on the environment temperature in combination with the target temperatures of the battery unit and the converter; wherein the target temperature of the battery unit is lower than the target temperature corresponding to the converter. By adopting the system, the differentiated collaborative temperature control of the battery unit and the converter can be realized under different environment temperature conditions.

The invention relates to the technical field of lead-bismuth reactors, and particularly discloses a liquid lead-bismuth alloy thermal stripe oscillation experiment device and method. The device comprises an experiment loop, a gas protection loop, a data acquisition device and an integrated control module. According to the experimental loop, a magnetic pump is used for driving lead-bismuth fluid and an air cooler to realize cooling through a cold and hot double-loop structure, lead-bismuth jet flow with temperature difference is formed, and the lead-bismuth jet flow is mixed in a three-inlet experimental section to simulate a hot stripe oscillation phenomenon. The method comprises the steps of gas replacement, preheating, loop filling, temperature and flow rate regulation and control, data acquisition and the like. The device can truly simulate a lead bismuth alloy thermal stripe oscillation process, effectively prevents high-temperature oxidation, has a modular experimental section structure, can research thermal stress responses under different structures, and provides reliable experimental data for reactor safety design.

The double-loop double-speed key switch with the lamp comprises a switch shell, a mounting cavity is formed in the switch shell, a key cap is movably arranged at a shell opening of the switch shell, a key shaft and an LED light source are arranged in the mounting cavity, the top end of the key shaft is connected with the key cap, and the LED light source is located at the bottom end of the key shaft. An elastic coupling piece is arranged on the outer side of the key shaft; three conductive terminal groups are arranged on the side cavity wall of the mounting cavity; the key shaft can move downwards in the axial direction when the key cap is pressed, and the elastic coupling piece is driven to conduct two-section coupling among the three conductive terminal sets in the vertical direction. According to the key switch, two-section coupling can be carried out in the same direction under the condition that the LED light source is arranged in the key switch, the coupling continuity is improved, the transverse area is reduced, and miniaturization of the key switch is facilitated.

The invention relates to the technical field of lime cooling, and discloses a continuous lime cooling method and system for double-loop waste heat recovery. The method comprises the following steps: acquiring an initial temperature and a mass flow parameter of high-temperature lime at an outlet of a lime kiln, and extracting a target temperature threshold and a heat exchange medium basic parameter in a cooling process standard from a preset database; then, a double-loop waste heat recovery path comprising a main cooling loop and an auxiliary recovery loop is constructed, and based on the difference value between the initial temperature and the target temperature, the flow speed of the first type of media in the main loop and the flow of the second type of media in the auxiliary loop are dynamically regulated and controlled; the real-time temperature of the high-temperature lime in the main loop, the outlet temperature of the first type of media and the inlet and outlet temperature data of the second type of media in the auxiliary loop are collected in real time at the same time; and finally, judging whether the high-temperature lime meets a cooling standard corresponding to the target temperature or not according to the collected temperature data and a preset heat balance relationship. According to the method, efficient cooling and waste heat recovery are achieved.

The invention relates to the technical field of ship power device fault diagnosis, and discloses a marine gas turbine plasma ignition layering fault troubleshooting method, which comprises the following steps: aiming at the characteristics of a plasma ignition system double-loop structure in a severe ship environment, firstly constructing a special safety test environment consisting of an insulating box body and an observation window; determining that the basic energy is normal by measuring primary electrical parameters; based on the core thought of a control variable method, a hierarchical cross-exchange test process for an aviation plug interface and an igniter body is designed, and a complete decision tree model is constructed by comparing logic changes of ignition states before and after exchange, so that a fault source is accurately isolated from a control board card, an ignition cable or an igniter; according to the invention, an experience-dependent troubleshooting process is converted into a standardized and visual technical operation process, and finally, the problems of low troubleshooting efficiency, high safety risk and great dependence on personnel experience in the prior art are effectively solved.

1. The name of the design product: double circuit integrated pole. 2. The use of the design product: for overhead transmission line. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design. 6. The design product is an elongated article, the length of which is omitted. 7. Other circumstances that need to be explained: A part of the enlarged view is the enlarged view of part A in the front view of design 1, B part of the enlarged view is the enlarged view of part B in the left view of design 1, C part of the enlarged view is the enlarged view of part C in the top view of design 1, D part of the enlarged view is the enlarged view of part D in the perspective view of design 1.

The invention relates to the technical field of heat pumps, and provides a cascade heat pump system double-loop superheat degree cooperative control method, device and equipment, and the method comprises the steps: determining a first target superheat degree of a main loop based on a first target superheat degree compensation value and a first difference value between a target energy efficiency value and an actual energy efficiency value; determining a second target superheat degree of the enthalpy increasing loop based on the second target superheat degree compensation value and a second difference value between the first actual superheat degree of the main loop and the first target superheat degree; based on the first target superheat degree, the second target superheat degree and a PID algorithm, the adjustment step number of the electronic expansion valve is determined; the main loop electronic expansion valve is controlled according to the first adjusting step number; and according to the second adjusting step number, the enthalpy increasing loop electronic expansion valve is controlled. Dynamic coupling control is carried out on the double-loop electronic expansion valve in the mode, and the energy utilization efficiency is improved.

The utility model relates to a lead short-circuit structure of a double-loop tower, which comprises two groups of high-voltage line towers, the two groups of high-voltage line towers are connected through three groups of short-circuit leads and a group of short-circuit ground wires, the three groups of short-circuit leads respectively correspond to an A phase, a B phase and a C phase, and the short-circuit leads and the short-circuit ground wires are connected through equipment wire clamps. The utility model has the advantage of simple construction.

The refrigeration equipment comprises an equipment body (2), two sets of rotating shells (4) are rotationally installed in the equipment body (2), driving mechanisms (5) are installed at the positions, corresponding to the rotating shells (4), of the top of the equipment body (2) respectively, an air outlet shell (6) is arranged on the front face of each rotating shell (4), and an air outlet is formed in the front face of each air outlet shell (6). And a plurality of groups of air deflectors (7) are arranged on the inner side of the air outlet. According to the utility model, the refrigeration effect of the refrigeration equipment in a large space is improved, and the adjustability and the cooling uniformity of the refrigeration equipment are further improved.