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36results about How to "Fault found" patented technology
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Self-diagnosis method of network sampling and control link of intelligent substation
ActiveCN103457791AImprove the level of intelligenceAvoid failureData switching networksInformation technology support systemSmart substationNetwork control
The invention provides a self-diagnosis method of a network sampling and control link of an intelligent substation. The method comprises the following steps of conducting IEC61850 communication protocol analysis; controlling an active diagnostic test of the link, and then finding out network faults; conducting network fault diagnosis based on an SNMP; conducting network fault management. The invention provides the self-diagnosis method of the network sampling and control link of the intelligent substation. The self-diagnosis method can timely find out various network faults of network operation, conduct positioning and eliminating on the faults, conduct management and recording on the network fault information, further ensure the reliability and safety of the application of network sampling and network control in the substation, and improve the intelligent level of the substation.
Owner:STATE GRID CORP OF CHINA +1
Washing machine
InactiveCN101338507AImprove cycle performanceReduce the effectOther washing machinesWashing machine with receptaclesFree rotationWash water
The aim of the invention is to improve circulation capability of wash water and improve clean degree of washing clothes. The invention relates to a washing machine comprising a rotating wing (2) arranged on inner bottom of a cylindrical washer (3), which can freely rotate; a water raising wing (15) arranged between the rotating wing (2) and the inner bottom of the cylindrical washer (3); and a speed increasing apparatus (11) for improving rotation speed of the water raising swing (15). The water raising swing (15) can get higher rotation speed by depending on the speed increasing apparatus (11) than depending on the rotating wing (2).
Owner:PANASONIC CORP
Filed tester for acquisition system for electricity consumption information and test method thereof
InactiveCN102353927AImprove efficiencyExtended service lifeTariff metering apparatusElectrical measurementsCommunication interfaceData processing
The invention discloses a field tester for an acquisition system for electricity consumption information and a test method thereof. The field tester comprises a microprocessor, a display unit, a power supply module, a storage unit, a communication interface unit and an input unit, wherein the microprocessor is internally provided with a data processing program and is respectively connected with the display unit, the power supply module, the storage unit, the communication interface unit and the input unit; the input unit is used for receiving an external instruction and transmitting the external instruction to the microprocessor; the microprocessor is used for transmitting the external instruction to the communication interface unit; the communication interface unit communicates with a collector and a smart meter and can be used for transmitting the acquired data to the microprocessor; and the microprocessor is used for processing the acquired data, storing and displaying the data and the processing result. The field tester for the acquisition system for the electricity consumption information and the test method thereof which are disclosed by the invention have the advantages of quickly and efficiently finding faults of an intelligent meter reading system, improving the operation reliability and safety of the intelligent meter reading system and the like.
Owner:XUANCHENG POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1
Wireless video automatic monitoring system for pantograph of locomotive
The invention provides an automatic monitoring system for wireless video of a locomotive pantograph, which comprises a remote network monitoring center device and at least one monitoring point device, wherein, the monitoring point device is connected with the remote network monitoring center device through a wireless network. The automatic monitoring system for the wireless video of the locomotive pantograph can realize real-time monitoring for the pantograph, improves monitoring precision, and simultaneously can also realize remote control function; therefore, the automatic monitoring system is favorable for discovering fault of the pantograph and a contact net in real time.
Owner:CHINA SHENHUA ENERGY CO LTD +1
Hardware monitor device for server
InactiveCN106815119AReduce the intensity of manual inspectionPrecise positioningHardware monitoringMotherboardOperational system
The invention discloses a hardware monitor device for a server. The device comprises a first acquisition module which is used for acquiring CPU state data, memory state data and hard-disk state data through the operation system of a server, a second acquisition module which is used for acquiring mainboard state data, fan state data, power supply state data and temperature state data through BMC, and a processing and alarming module which is used for monitoring the CPU state data, the memory state data, the hard-disk state data, the mainboard state data, the fan state data, the power supply state data and the temperature state data according to requirements, and alarming when an arbitrary device is failed. The hardware monitor device can be used for acquiring the hardware state of a server in a remote mode to effectively reduce the intensity of labor routing inspection, instantly finding out a sever failure and accurately positioning the failed hardware so as to improve the maintenance efficiency.
Owner:DAWNING INFORMATION IND BEIJING
Smart accumulator and remote management system thereof
PendingCN108400395AAccurately reflect changes in internal resistanceBalancing Measurement CostsCells structural combinationCommunication interfaceInformation processing
The invention discloses a smart accumulator and a remote management system thereof. The smart accumulator comprises multiple accumulator monomers; any accumulator monomer comprises a battery upper cover; a selector switch and a communication interface are arranged on the battery upper cover; multiple accumulator monomers are in cascade connection through the communication interface so as to form an accumulator pack; the interior of any accumulator monomer contains an integrated chip, and the integrated chip is used for online monitoring the voltage, the internal resistance and the temperatureof the accumulator monomer in real time; the integrated chip comprises an A / D chip, a CPU processor, a voltage measurement circuit, an internal resistance measurement circuit, and a temperature measurement circuit; the A / D chip is connected with the CPU processor; and the CPU processor is connected with the communication interface. The smart accumulator disclosed by the invention can reflect the own operation working condition of the accumulator in real time so as to perform the voltage balance; and meanwhile, a fully functional accumulator professional information processing and comprehensiveanalysis internet information platform is provided so as to effectively improve an operation status of the accumulator, obviously improve the power supply reliability of the accumulator, and prolongthe life of the accumulator.
Owner:STATE GRID CORP OF CHINA +2
Building electromechanical equipment maintenance and monitoring system utilizing BIM technology
InactiveCN107093012AGrasp the running status in timeMonitor routine maintenanceResourcesSystems managementMonitoring system
The invention discloses a building electromechanical equipment maintenance and monitoring system utilizing the BIM technology. The system comprises a model establishment platform used for utilizing a BIM system to input the electromechanical equipment information and establish an electromechanical equipment information model, an equipment maintenance and management module, a communication module, a monitoring module, a fault analysis database, a fault analysis module and a system management module. The system is advantaged in that the electromechanical equipment information model is established through the BIM technology, a real-time monitoring system is utilized for assistance, an operation state of electromechanical equipment can be timely mastered, so faults can be timely discovered, a solution scheme can be proposed, moreover, daily maintenance of the electromechanical equipment can be further monitored, periodic maintenance systems are established, efficient operation and maintenance means and platforms are provided for operation and maintenance workers, and large-scale complex maintenance and management of the electromechanical equipment of buildings can be effectively realized by property management personnel.
Owner:四川云图瑞科技有限公司
Method and device for monitoring gas turbine gas path performance
The invention provides a method and a device for monitoring gas turbine gas path performance. The method comprises steps: operation parameter values of multiple groups of gas paths when the gas turbine is in a healthy operation state are acquired; according to the operation parameter values of multiple groups of gas paths and a calculation formula, performance parameter values of multiple groups of gas paths in one-to-one correspondence with the operation parameter values of multiple groups of gas paths are obtained through calculation; on the basis, a regression equation, different from the calculation formula, for the gas path performance parameters relative to the gas path operation parameters is obtained; the real-time gas path operation parameter values of the gas turbine are acquired, and a first gas path performance parameter value is obtained according to the regression equation; according to the real-time gas path operation parameter values of the gas turbine and a calculation formula, a second gas path performance parameter value is obtained through calculation; and according to the first gas path performance parameter value and the second gas path performance parameter value, the gas path performance attenuation parameter value of the gas turbine is obtained through calculation. The method and the device provided by the invention can timely and effectively detect fault of the gas turbine.
Owner:PIPECHINA SOUTH CHINA CO
35kV transformer substation multi-layer safety protection system
ActiveCN105513245AAvoid destructionImprove the protective effectFencingBurglar alarmTransformerData acquisition
The invention discloses a 35kV transformer substation multi-layer safety protection system, and relates to the technical field of intelligent transformer substations. The protection system comprises first to seventh safety protection devices, multiple data acquisition devices and a monitoring host. The protection system is provided with multi-layer protection devices so that the protection effect is great. Besides, the data acquisition devices are arranged at the points to be monitored in a transformer substation, and a fault curve model is arranged in the host so that the monitoring host is enabled to timely discover faults in the operation process of the transformer substation and perform quick positioning, and thus operation safety and stability of the transformer substation can be further enhanced.
Owner:STATE GRID CORP OF CHINA +3
Performance on-line monitoring device for power distribution switch cabinet lightning arrester and monitoring method thereof
InactiveCN105372540AAccurate online monitoringOnline monitoring in timeElectrical testingSignal conditioning circuitsCurrent sensor
The invention discloses a performance on-line monitoring device for a power distribution switch cabinet lightning arrester and a monitoring method thereof. The monitoring device comprises a microprocessor circuit, temperature signal conditioning circuits, current signal conditioning circuits, an in-cabinet temperature signal conditioning circuit, a display circuit, a keyboard circuit, a power supply circuit, a communication interface circuit in bidirectional communication connection with the microprocessor circuit, temperature sensors, current sensors and an in-cabinet temperature sensor; the temperature signal conditioning circuits, the current signal conditioning circuits, the in-cabinet temperature signal conditioning circuit, the display circuit, the keyboard circuit and the power supply circuit are in one-way communication connection with the microprocessor circuit; the temperature sensors and the current sensors are arranged on a lightning arrester in a power distribution switch cabinet, and the in-cabinet temperature sensor is arranged in the power distribution switch cabinet; and the microprocessor circuit performs on-line monitoring and a performance judgment of the lightning arrester according to acquired monitoring data. Accurate, timely and efficient on-line monitoring of performance of the lightning arrester of the power distribution switch cabinet is achieved, and, through utilization of a total leakage current of the lightning arrester and a combination with temperature data of a body of the lightning arrester, whether a fault occurs in the lightning arrester is comprehensively determined, so safe operation of switch equipment is ensured.
Owner:HOHAI UNIV CHANGZHOU
Monitoring system and monitoring method of access control device
InactiveCN104768179AFind faults in timeFault foundWireless communicationComputer moduleMonitoring system
The invention discloses a monitoring system and a monitoring method of an access control device, relating to a monitoring technique of a wireless access control device in the communication technical field. The monitoring system comprises at least one core switch, at least one access control (AC) device, a bypass switch, a test wireless local area network (WLAN) module, a test control unit and a plurality of test access point (AP) devices. The test control unit and a plurality of test AP devices are all connected with the bypass switch. The bypass switch is connected with the core switch. The test WLAN module is used for wirelessly connecting the test AP devices. The at least one AC device belongs to the class N, wherein N is an integer greater than or equal to 1. A plurality of test AP devices belong to N classes, and each class at least has one test AP device. The test control unit is used for controlling each test AP device to be connected with the AC device of the same class through the bypass switch and testing on a link formed by the test AP devices, the AC device and the test WLAN module.
Owner:CHINA MOBILE GROUP JIANGSU
Method and device for testing memory
The embodiment of the invention relates to a method and device for testing a memory. The method includes the following steps that: a first forwarding table stored in a first storage space of the memory is copied to a second storage space of the memory, so that a second forwarding table can be obtained; a network processor tests the first storage space; the second forwarding table stored in the second storage space is copied to the first storage space, so that a third forwarding table can be obtained; and the network processor accesses the third forwarding table, so that discovery of faults in the memory can be facilitated.
Owner:常州横塘科技产业有限公司
Agricultural vegetable seeding machine
InactiveCN108738538AImprove mobile efficiencyReduce shipping costsFertiliser and seeding apparatusFertiliser equipmentsAgricultural engineeringUltimate tensile strength
The invention discloses an agricultural vegetable seeding machine which comprises a vehicle body, wherein a traction rod is arranged on the left side of the top of the vehicle body, a driving box is arranged at the top of the left side of the vehicle body, a transmission box is arranged on the right side of the driving box, the transmission box is connected with the vehicle body, a fertilizer boxis arranged on the right side of the transmission box, and the fertilizer box is connected with the vehicle body. According to the agricultural vegetable seeding machine disclosed by the invention, the driving box, the transmission box, the fertilizer box and a seeding box are matched; ditching, seeding, fertilizing and backfilling are integrated on one set of equipment; the agricultural vegetableseeding machine has multiple functions and wide application; working strength of mutually ditching, seeding, fertilizing and backfilling of workers is reduced, and physical fatigue of the workers isovercome; the agricultural vegetable seeding machine has the advantages of simpleness in operation, convenience in movement and transportation, low transportation cost and suitability for being popularized and applied; by means of the agricultural vegetable seeding machine, work efficiency of workers is improved, planting manual cost is reduced, and a yield is improved.
Owner:张程翔
Rapid detection method of wind power gear box lubrication oil way system and detection apparatus thereof
InactiveCN102426100AFault foundReduce consumptionMachine gearing/transmission testingTemperature measurement of flowing materialsThermodynamicsOil temperature
A rapid detection method of a wind power gear box lubrication oil way system and a detection apparatus thereof are disclosed. The rapid detection method comprises the following steps that: an outer oil supply way is externally connected with the wind power gear box lubrication oil way system; through the outer oil supply way, heated lubricating oil is firstly supplied into the wind power gear box lubrication oil way; oil temperatures of each oil temperature point of the wind power gear box lubrication oil way are measured; then the cooled lubricating oil is supplied into the wind power gear box lubrication oil way; and the oil temperatures of the each oil temperature point of the wind power gear box lubrication oil way are measured; during an above process, if the oil temperatures of the each oil temperature point are uniformly decreased, the lubrication oil way of the wind power gear box is unobstructed; if the oil temperature of one oil temperature point during the above process does not change obviously, the oil way of the oil temperature point is not clear or obstructed. The measure apparatus comprises an externally connected oil supply pump, at least one heating device and one cooling device which are connected in series. And the above devices are connected to the lubrication oil way system of the wind power gear box together and form an externally connected lubrication oil way cycle with an externally connected oil pool. Usage is simple, rapid, accurate and safe. A trial run efficiency can be greatly improved so that a capacity can be increased. The method and the apparatus have many other characteristics.
Owner:HANGZHOU ADVANCE GEARBOX GRP
Method for detecting equipment fault based on network port
ActiveCN113783749AHelp shareFault foundData switching networksComputer scienceReliability engineering
The invention discloses a method for detecting an equipment fault based on a network port, which comprises the following steps of: starting monitoring on a running network port through a preset dynamic library, and generating a monitoring result; according to the monitoring result, judging whether the network port and the target equipment detection end are normally connected or not, and determining a judgment result; when the judgment result is a normal connection result, a protocol in a preset dynamic library is called, and the network port acquires detection data of the detection end of the target equipment at regular time and generates a corresponding detection table diagram; and when the judgment result is a connection failure result, performing exception troubleshooting on the exception equipment detection end, positioning an exception position of an exception program in the exception equipment detection end, capturing exception data, and performing early warning at the same time.
Owner:TAIYUAN GREAT TIMES TECH CO LTD
Street lamp fault monitoring method based on wireless ad hoc network
InactiveCN111417246AFault foundAvoid sending aloneElectrical apparatusTelecommunicationsWireless ad hoc network
The invention belongs to the technical field of Internet of Things smart cities. The invention specifically discloses a street lamp fault monitoring method based on a wireless ad hoc network. According to the method, an air switch and a Hall sensor are arranged on a street lamp loop, the states of voltage and no current on the street lamp loop are monitored, whether the street lamp breaks down ornot is judged according to the duration time and amplitude of the states of voltage and no current, and fault information of the street lamp is collected and then sent to a user cloud server through an NBIOT. Maintenance personnel can discover street lamp faults in time, and manpower and material resources invested in troubleshooting of street lamp fault states in a manual inspection mode are saved.
Owner:NANJING XIAOZHUANG UNIV
Solar energy direct drive aeration system
PendingCN107804921AEasy to operateLow costWaterborne vesselsWater aerationBrushless motorsAeration system
The invention discloses a solar energy direct drive aeration system and belongs to the field of water treatment. Aiming at the problems in the prior art that when the solar irradiation is not sufficient, an aeration system often stops, so that reset and restart are required; the use is inconvenient; an aeration effect is worse, the invention provides a solar energy direct drive aeration system. The solar energy direct drive aeration system disclosed by the invention comprises a solar energy module, a fixed support, a floating body connector, an aeration wheel, a transmission shaft, a brushlessdirect current motor, a protective box, a brushless motor controller, a protective net cover, a pulling rope, a fixed pile and a floating body ring; a self-starting circuit is arranged outside the brushless motor controller, and the brushless motor controller is automatically started and stopped. The manual reset is not required, and the automatic startup can be performed through the intervention, so that the operation is greatly facilitated, and the cost is reduced.
Owner:ANHUI HUANGHE WATER RESOURCE POLYTRON TECH INC
A method and device for monitoring the gas path performance of a gas turbine
Owner:PIPECHINA SOUTH CHINA CO
35kv substation multiple safety protection system
ActiveCN105513245BAvoid destructionImprove the protective effectFencingBurglar alarmTransformerData acquisition
The invention discloses a 35kV transformer substation multi-layer safety protection system, and relates to the technical field of intelligent transformer substations. The protection system comprises first to seventh safety protection devices, multiple data acquisition devices and a monitoring host. The protection system is provided with multi-layer protection devices so that the protection effect is great. Besides, the data acquisition devices are arranged at the points to be monitored in a transformer substation, and a fault curve model is arranged in the host so that the monitoring host is enabled to timely discover faults in the operation process of the transformer substation and perform quick positioning, and thus operation safety and stability of the transformer substation can be further enhanced.
Owner:STATE GRID CORP OF CHINA +3
BIM technology-based rail transit facility inspection method and device
PendingCN113823012AFault foundGuaranteed safe operationGeometric CADTelevision system detailsData packComputer science
The invention discloses a BIM technology-based rail transit facility inspection method and device. The method comprises the steps of obtaining a first state of a facility in rail transit through a mobile information obtaining device which comprises at least one of a camera, a radar and a sensor, wherein the facility comprises at least one of the following facilities: a building facility and equipment used in the rail transit; obtaining building information model BIM data, wherein the BIM data comprises at least one of the following data: data of the building facility and data of the equipment; and comparing the first state with a state corresponding to the equipment in the BIM data to determine whether the facility is abnormal or not. According to the method and the device, the problem caused by manual or rolling train inspection on the rail transit facility is solved, so that the fault of the rail transit facility can be found in real time, and the safe operation of the rail transit is ensured.
Owner:浙江众合科技股份有限公司
Monocular SLAM system for high-voltage transmission line inspection
InactiveCN112183411AFault foundFound the situationImage enhancementImage analysisForeign matterVisual technology
The invention relates to the technical field of power line inspection, and discloses a monocular SLAM system for high-voltage power transmission line inspection. The system is characterized in that anoverhead power transmission line inspection robot uses a visible light and infrared double-light fusion nacelle, so that a visible light image and an infrared image of the same scene can be obtainedat the same time, wherein pixel points of the visible light image and the infrared image are in one-to-one correspondence; an inspector or an automatic fault identification algorithm checks whether faults such as rusting, cracking, falling and the like exist on the surface of hardware, whether foreign matters exist on a high-voltage power transmission line and whether bird nests and the like existon a tower to influence the power transmission safety according to the images; whether the temperature of the power transmission line is abnormal is judged through the infrared image so as to determine whether the power transmission line is abnormal; three-dimensional reconstruction is performed on a power transmission line channel through a visual SLAM technology; and whether the power transmission safety is affected can be known through a three-dimensional map.
Owner:浙江港创智能机器人有限公司
Numerical control system for monitoring laser drive power supply
The invention provides a numerical control system for monitoring a laser drive power supply. The numerical control system is characterized in that the numerical control system comprises a receiving unit, a control unit and a transmitting unit; and the receiving unit receives data from the laser drive power supply, the control unit generates a control instruction according to the data received by the receiving unit, and the transmitting unit transmits the control instruction to the laser drive power supply.
Owner:BEIJING RECI LASER TECH +1
Diesel generating set with protection device
Owner:扬州市东华星动力科技有限公司
Communication device monitoring method and communication device
ActiveCN107819617BGuaranteed uptimeSwitch in timeData switching networksEmbedded systemCommunication device
Owner:COMBA TELECOM SYST CHINA LTD
A self-diagnosis method for network sampling and control links of smart substations
ActiveCN103457791BImprove the level of intelligenceAvoid failureData switching networksInformation technology support systemIntelligent NetworkSmart substation
The present invention provides an intelligent substation network sampling and control link self-diagnosis method, comprising the following steps: IEC61850 communications protocol analysis; independent diagnosis and test of a control link, to find a network fault; SNMP-based network fault diagnosis; and network fault management. The present invention provides an intelligent substation network sampling and control link self-diagnosis method. The present invention can timely find various network faults during network operation, position and troubleshoot the faults, and further manage and record network fault information, thereby further ensuring application reliability and security of network sampling and network control in a substation, and improving intelligence of the substation.
Owner:STATE GRID CORP OF CHINA +1
Lightweight power equipment knowledge hybrid storage medium management method and system
PendingCN112650455AEnsure safetyFault foundData processing applicationsInput/output to record carriersElectric power equipmentPower equipment
The invention is suitable for the technical field of information management, and provides a lightweight power equipment knowledge hybrid storage medium management method and system. The method comprises the following steps: acquiring power equipment knowledge data, and storing the data for a user to call and check the power equipment knowledge data; periodically counting the calling times of the knowledge data of the power equipment, and arranging the data of the calling times to obtain arranged data; according to the arrangement data, respectively storing the power equipment knowledge data to different storage units; and periodically detecting whether the storage unit has a fault or not, if so, transferring the knowledge data of the power equipment to a standby storage module, and repairing the fault part of the storage unit. According to the invention, the corresponding speed is improved, hardware faults can be quickly found, and the safety of data is ensured.
Owner:善智互联(北京)网络科技有限公司
Method and device for testing memory
The embodiment of the invention relates to a method and device for testing a memory. The method includes the following steps that: a first forwarding table stored in a first storage space of the memory is copied to a second storage space of the memory, so that a second forwarding table can be obtained; a network processor tests the first storage space; the second forwarding table stored in the second storage space is copied to the first storage space, so that a third forwarding table can be obtained; and the network processor accesses the third forwarding table, so that discovery of faults in the memory can be facilitated.
Owner:常州横塘科技产业有限公司
Dada information collecting method, device and system of fire protection emergency broadcasting and fire protection special telephone system
The embodiment of the invention provides a dada information collecting method, device and system of a fire protection emergency broadcasting and fire protection special telephone system and belongs to the technical field of fire protection. The method is used in the fire protection emergency broadcasting and fire protection special telephone system. Sensors are arranged on components of the fire protection emergency broadcasting and fire protection special telephone system, so that monitoring information of the fire protection emergency broadcasting and fire protection special telephone system is obtained, monitoring information is gathered, gathered monitoring data information is obtained, and the gathered monitoring data information is sent. Through the gathered monitoring information, the overall operation situation of the fire protection emergency broadcasting and fire protection special telephone system can be grasped in real time, faults of a fire protection emergency broadcasting and fire protection special telephone can be found in time, and accordingly comprehensive monitoring on the fire protection emergency broadcasting and fire protection special telephone is achieved.
Owner:GUANGZHOU TAICHANG IND
Access control system power-off protection circuit and system thereof
ActiveCN112994143AAvoid fusesAvoid excessive charging currentPower network operation systems integrationEmergency protective circuit arrangementsCapacitanceTerminal voltage
The invention relates to an access control system power-off protection circuit and a system thereof. The power-off protection circuit comprises a charging interface, an output interface, a first capacitor, a second capacitor, a first super capacitor, a third capacitor, a second super capacitor, a three-terminal voltage stabilizer and an anti-discharge diode, a second pin of the charging interface is connected with an input end of a three-terminal regulator and one end of a first capacitor, an output end of the three-terminal regulator is connected with a positive electrode of an anti-discharge diode and one end of a second capacitor, and a negative electrode of the anti-discharge diode is connected with a positive electrode of a first super capacitor, one end of a third capacitor, a positive electrode of a second super capacitor and a first pin of the output interface; and the first pin of the charging interface is connected with the second pin of the output interface, the other end of the first capacitor, the grounding end of the three-terminal regulator, the other end of the second capacitor, the negative electrode of the first super capacitor, the other end of the third capacitor and the negative electrode of the second super capacitor are connected with a connecting line of the second pin of the output interface and the first pin of the charging interface. The problems of high risk, instability and the like of the existing access control standby power supply can be solved.
Owner:ZHONGHANG WEAK ELECTRICITY SYST ENG BEIJING
Washing machine
InactiveCN101338507BImprove cycle performanceReduce the effectOther washing machinesWashing machine with receptaclesWash waterEngineering
The aim of the invention is to improve circulation capability of wash water and improve clean degree of washing clothes. The invention relates to a washing machine comprising a rotating wing (2) arranged on inner bottom of a cylindrical washer (3), which can freely rotate; a water raising wing (15) arranged between the rotating wing (2) and the inner bottom of the cylindrical washer (3); and a speed increasing apparatus (11) for improving rotation speed of the water raising swing (15). The water raising swing (15) can get higher rotation speed by depending on the speed increasing apparatus (11) than depending on the rotating wing (2).
Owner:PANASONIC CORP
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