68results about How to "Avoid work overload" patented technology

The invention relates to a solar assisted heat pump heater and a control method. The heater comprises a heat pump system, wherein the heat pump system comprises a blow expansion type evaporator, a compressor, a condenser and an electronic expansion valve and is used for allowing cold media to flow, and the condenser is arranged in a water tank and/or outside the water tank, so that the cold media flowing through the evaporator are subjected to heat exchange with water in the water tank; temperature sensors for detecting temperature of the flowing cold media are arranged on an air suction pipeline and an air exhaust pipeline of the compressor respectively. When the temperature Tr of the water tank is lower than a set value T1, corresponding electronic expansion valve opening is obtained according to a temperature detection value of an air suction end of the compressor; when the temperature Tr of the water tank is higher than the set value T1, the corresponding electronic expansion valve opening is obtained according to a temperature detection value of an air exhaust end of the compressor. According to the device and the method, indexing control is adopted according to the water temperature of the water tank during heating of the heat pump, so that the control precision of the electronic expansion valve is higher in a preparation process, the heating efficiency is improved, and the energy consumption is reduced.

The invention provides network equipment and a power consumption control method thereof. The network equipment comprises a plurality of power supply units, a central processing unit and a substrate management controller, wherein the power supply units supply power to the central processing unit, and each power supply unit is provided with a rated power; and the substrate management controller is used for detecting whether all the power supply units normally work or not, and when one or more of the power supply units are detected to be incapable of normally supplying power, the power consumption of the central processing unit is correspondingly regulated by the substrate management controller so as to be equal to the total power supplied by the remained power supply units for normally supplying power.

The invention provides an electrical appliance management system which is used for electrical appliance management of electrical appliances. The electrical appliance management system comprises a main manager, at least one tail end connected with the main manager through a signal connection mode and a control panel, and the electrical appliances are electrically and correspondingly connected with the tail end one by one. The invention further provides an electrical appliance management method of the electrical appliance management system, and the electrical appliance management method comprises an overload protection mode, a newly-added electrical appliance protection mode and a timing on-and-off mode. When a single electrical appliance breaks down, the electrical appliance management system can effectively judge faulted electrical appliances and adopt real-time and effective measures.

The invention discloses stirring equipment used for municipal construction. The equipment comprises an equipment body. A feeding barrel is arranged on the upper side of the equipment body. A feeding hopper is arranged at the left end of the upper side of the feeding barrel. A feeding mechanism is arranged in the feeding barrel and comprises a feeding screw and a screw blade arranged on the outer wall of the feeding screw. The left end of the feeding screw is connected with a motor. A pre-crushing mechanism is arranged on a right section of the feeding barrel. According to the stirring equipment used for municipal construction, automatic feeding can be achieved, raw materials are pre-crushed in the feeding process, the stirring efficiency is improved, circulating flowing of concrete is achieved through vertical moving of vibro-rammers and the guiding effect of an inner barrel, stirring screws are used for stirring the concrete and driving the concrete to rise in the stirring process, and the stirring effect is greatly improved; and in addition, a damping bracket can be used for achieving effective shock absorption and prevention, and the service life of the stirring equipment is prolonged.

The invention provides a particle material drying robot which comprises a feeding mechanism, a stoving mechanism arranged on the rear portion of the feeding mechanism, a drying mechanism arranged on the upper portion of the drying mechanism, a discharging mechanism arranged on the rear portion of the stoving mechanism, and a control mechanism in signal connection with the feeding mechanism, the stoving mechanism, the drying mechanism and the discharging mechanism. To avoid the phenomena that in the prior art, drying efficiency is low and energy consumption is high during drying, the stoving mechanism is used for stoving materials, the feeing mechanism and the discharging mechanism are used for feeding and outputting the materials, the drying mechanism is used for rapidly recovering moisture in the materials, energy conversion and recovery are achieved while moisture is condensed and falls through a heat exchanger, and the drying effect is guaranteed while rapid drying is achieved.

The invention discloses a mobile detecting device applied to power monitoring. The device comprises a stroke pipe. A cable is inserted in the middle of a cavity in the stroke pipe. The cable is sleeved by a detecting trolley. A through hole is arranged in the middle of the detecting trolley. The cable is inserted into the through hole. Insertion holes are arranged in left and right sides in the detecting trolley. A detecting rod is inserted in each insertion hole. A ball is movably inlaid in the end, which contacts the cable, of each detecting rod. Limiting cavities are arranged in the middleof the left and right sides of each insertion hole. Each detecting rod is fixedly connected with a limiting ring on the outer side of a limiting cavity. A compression spring is fixedly connected between a limiting ring and the side wall of a limiting cavity. According to the mobile detecting device applied to power monitoring, elastic blocks are arranged to protect the device on the detecting trolley; and the detecting rods and laser displacement sensors are arranged to detect whether the cable works normally.

The invention relates to a control method and system for automobile air conditioner inner and outer circulation modes. The control method comprises the steps that the working mode of an air conditioner system is detected; the state of a compressor is detected; the air blowing mode of the air conditioner system is detected; the power state of an engine is judged; whether the conditions a, b, c and d are met at the same time or not is judged, if yes, the inner and outer circulation modes are adjusted into the inner mode, and if not, the current circulation modes are kept, wherein the condition a is that the air conditioner system is in the automatic mode, the condition b is that the compressor is in the start state, the condition c is that the air blowing mode is a non-window-blowing mode or a non-window-blowing foot-blowing mode, and the condition d is that the engine is in the power insufficient mode. According to the control method and system for the automobile air conditioner inner and outer circulation modes, the engine is prevented from working with overloads, and the service life of the engine is prolonged.

The invention relates to a double-system circulation water cooling device. The device comprises a cooling unit, a freezing unit and a control unit, wherein the cooling unit comprises a first cooling tower, a second cooling tower, a cooling water tank and two workshop circulating water supply pipes; the first cooling tower and the second cooling tower separately communicate with workshop circulating water return water, the cooling water tank separately communicates with the first cooling tower and the second cooling tower, and the workshop circulating water supply pipes separately communicate with the cooling water tank; and the freezing unit comprises a freezing machine, a plate type heat exchanger, a cooling water circulation water pipe and a freezing water circulation water pipe. Compared with the prior art, the double-system circulation water cooling device has the advantages that the freezing unit can be automatically started or closed through a temperature sensor and an electric controller according to circulating water cooling temperature requirements; different circulating water cooling quantity requirements can be met, and working modes can be flexibly switched according to the variation of actual production requirements; the refrigerating quantity of the freezing unit is reasonably utilized, and coordination between production requirements and energy consumption reduction is realized; and the device is great in working stability and long in service life.

An environment protection type energy-saving hydraulic auxiliary power system for the hoisting machines (hoist, winder, elevator, fork truck, etc) is composed of hydraulic power system, hydraulic energy accumulator, hydraulic channel controller and timing power controller. It features that when the cargo is lifting, the hydraulic energy in hydraulic energy accumulator is used for boosting, and when the cargo is staying in sky, and its potential energy is converted to hydraulic energy and then stored in accumulator.

An environment protection type energy-saving auxiliary hydraulic power system is composed of hydraulic power system, hydraulic energy accumulator, hydraulic loop controller, speed sensor, position sensor and ECU. When the car is starting or accelerated, the accumulated energy can be used. When the car is decelerated or braked, its inertial kinetic energy can be accumulated.

The invention provides a method for controlling shutdown of an auxiliary engine of clutchless hybrid electric vehicle brakes. The method includes: if a vehicle meets the engine stop condition, calculating to acquire brake demand torque TB1 of a first brake, demand torque TE1 of a small motor and demand torque TE2 of a large motor through a vehicle torque distribution module under the condition that a second brake (B2) is opened; enabling the brake torque of the first brake to reach TB1 by adjusting current of a solenoid valve, and respectively sending TE1 and TE2 to corresponding small-motor controller and large-motor controller through a vehicle controller and controlling the corresponding small motor and the large motor to perform execution; allowing an engine to go into flameout, and when rotational speed of the engine is smaller than a first preset threshold A, locking the first brake (B1) by enlarging the current of the solenoid value through the vehicle controller to complete shutdown of the engine and allow the vehicle to go into pure electric mode. The method is simple and feasible, shutdown efficiency of the engine can be improved, and service life of the first brake can be prolonged.

The invention provides a motor protection device with overload protection, and relates to the technical field of motor equipment. The motor protection device comprises a driven shaft, clamping grooveswhich are uniformly distributed are formed in the inner side of the driven shaft, an output shaft is clamped on the inner wall of the driven shaft, and electromagnets I which are uniformly distributed are fixedly connected to the middle part of the output shaft. According to the motor protection device with overload protection, the clamping blocks are matched with the electromagnets I for use; when the motor is suddenly jammed, the electromagnets are energized, the magnetic blocks I can move towards the middle part of the output shaft under the action of opposite attraction and drive the movable block to move towards the middle part, the limiting block can shrink into the clamping block under the action of the third spring, at the moment, the clamping block can stretch out and draw back in the output shaft and retract into the output shaft under the action of the first magnetic block, the output shaft can freely rotate in the driven shaft, and thus the effect of protecting the motor is achieved, overload work of the motor is avoided, the service life of the motor is effectively prolonged, and the production cost is reduced.

The invention discloses a non-contact elevator reservation control method and system, an elevator and a storage device, and belongs to the field of elevator control. The iris recognition technology is adopted at a barrier gate entrance guard for personnel identity information recognition without card swiping or fingerprint contact or taking off masks, people do not directly exposed or make contact with public articles in the whole process, and the infection risk is effectively reduced; besides, elevator reservation is carried out when people pass through the entrance guard, floor information is called, and a good protection effect can also be kept when people take the elevator; and, when part of people do not enter the reserved elevator, secondary identity recognition can be carried out through a recognition device at the entrance of the elevator to cancel the reserved floor and reserve another elevator at the same time, on one hand, the phenomenon that the original elevator stops at the reserved floor in vain can be avoided, on the other hand, another elevator can be reserved in a non-contact mode, and the health and safety of elevator passengers are guaranteed while the elevator running efficiency is improved.

The invention discloses a method and device for selecting basic devices for network content services. The method includes the steps that a region covered with the network content services is divided into a plurality of initial sub-regions; every several initial sub-regions mutually meeting a preset region difference condition are combined into one combined region, and the combined regions and the initial sub-regions which are not combined serve as target sub-regions; selectable basic devices are determined for the target sub-regions based on the statistical frequency that alternative basic devices can meet performance requirements of users in the target sub-regions; target basic devices are selected for each target sub-region based on the estimated flow and estimated number of requests of the target sub-region and the flow accounting function and number-of-request accounting function of the selectable basic devices of the target sub-region. By the adoption of the technical scheme, control over the total basic device accounting cost can be achieved for content providers of the network content services on the premise that the performance requirements of users are met, and the time consumed in selecting the basic devices can be shortened as well.

The invention discloses a multi-motor load balanced distribution system and method of a laser engraving machine. One or more processing areas are obtained by arranging partition boundaries on a workpiece to be processed. Processing task distribution is carried out according to the processing areas. Moving tracks corresponding to driving motors are generated according to a processing task, and therefore a laser head is controlled to engrave the workpiece according to the moving tracks. By partitioning the workpiece to be processed and reasonably distributing the processing task for the drivingmotors, overload work of any driving motor is avoided, the engraving accuracy and reliability of the laser engraving machine are guaranteed, and the service life of the machine is prolonged.

The invention is applicable to the technical field of coal screening and separation, and provides a multifunctional screening device for a coal mine. The multifunctional screening device comprises a device body, wherein a receiving system is arranged on the upper portion of the device body, a screening system and a control system are arranged in the device body, the screening system is connected with a driving system, and a pressure sensing system is arranged in the screening system; the pressure sensing system comprises movable plates located in grooves, each movable plate is located on the lower portion of a coal screening roller, second sliding grooves are formed in the two vertical side face walls of the inner side of each groove, second sliding blocks are arranged at the two ends of each movable plate, the second sliding blocks are movably connected with the interiors of the second sliding grooves, and a plurality of elastic elements are arranged on the lower portion of each movable plate; and a pressure sensor is arranged on the lower portions of the elastic elements of each movable plate. Therefore, the multifunctional screening device is simple in structure and reliable in design, overload work of the device can be prevented, the service life of the device is prolonged, coal ash can be effectively reduced, the screening efficiency is improved, the sieve length is shortened, and resources are saved.

The invention provides a motor protecting device based on electromagnetic attraction and turbid liquid limiting, and relates to the technical field of motors. The device comprises a shell. The left side of the shell is movably connected with a gear. The right side of the gear is engaged with a sliding barrel. The inner wall of the left side of the sliding barrel is fixedly connected with two symmetrical positive plates. The inner wall of the right side of the sliding barrel is fixedly connected with two symmetrical negative plates. According to the motor protecting device based on electromagnetic attraction and turbid liquid limiting, a dielectric plate is used with the positive plates and the negative plates cooperatively, when glass rises and falls to a limit state, the sliding barrel slides to the top or the bottom, and at the moment, an electromagnet which is in the same direction of the sliding barrel generates magnetism, a movable block is moved towards the electromagnet by attracting a magnetic block, after the movable block moves to the same direction, the opposite area of the positive plates and the negative plates is decreased to the minimum by the dielectric plate, at this moment, the circuit voltage is smaller than the minimum circuit voltage of a resistor, a circuit is in an open state, a motor is effectively protected, and overwork of the motor is avoided.