4results about How to "Reduce operating speed" patented technology

The utility model discloses a low -noisy air -cooled fuel cell stack fan structure relates to battery stack heat dissipation technical field, including fan main part, the center of fan main part is provided with the installation cavity, the inside of installation cavity is provided with the mounting bracket, the one side of mounting bracket is provided with brushless motor, the inside of installation cavity is provided with fan blade, the back of fan main part is provided with control line, the outside of fan main part front end is provided with mounting panel, the four corners of mounting panel all are provided with an installation hole, the back of mounting panel is provided with rubber pad, and rubber pad is attached with mounting panel, the front of mounting panel is provided with mounting bolt, and mounting bolt is correspondingly provided with installation hole, mounting bolt and mounting panel and rubber pad through -connection, the mounting structure of this fan structure has the buffering effect, and the vibration of fan operation process can be effectively eliminated, reduces the noise of fan structure operation and produces, improves fan structure use effect.

The application discloses a refrigerator, a control method and system thereof, and relates to the technical field of electrical appliances.The refrigerator comprises: a freezing fan unit for cold quantity delivery of a first chamber, comprising one or more freezing fans; a refrigerating fan unit for cold quantity delivery of a second chamber, comprising one or more refrigerating fans; and a controller connected with the freezing fan unit, the refrigerating fan unit and the refrigerating machine unit, respectively, for controlling the duty cycle of the freezing fan unit and the refrigerating fan unit and the running speed of the compressor in several running modes.The double fans replace the traditional single fan, the running speed of the fan is reduced as a whole, and the noise of the refrigerator is reduced.Through independent setting of the freezing fan unit and the refrigerating fan unit, the running mode and the temperature of the chamber are independently controlled, the accuracy of temperature adjustment is improved, the flexibility of the running mode is increased, the system can realize a higher energy efficiency ratio, and energy consumption is reduced.

The invention discloses a variable-attack-angle vertical axis wind turbine loaded with an iris-like mechanism, and belongs to the technical field of wind power generation. A fixed connecting rod fixing opening is formed in the edge of an iris outer disc of the variable-attack-angle vertical axis wind turbine, and a fixing column is arranged at the fixed connecting rod fixing opening; the iris inner disc is arranged in the iris outer disc, an adjusting strip hole is formed in the iris inner disc, and a moving column is arranged in the adjusting strip hole; one end of the fixed connecting rod body is connected with the side part of the wind turbine blade, and the other end is connected with the fixed column; one end of the movable connecting rod body is connected with the side part of the wind turbine blade, and the other end is connected with the moving column; one end of the switching rod is connected with the end part of the fixed connecting rod body through a fixing column; the other end of the switching rod is connected with the end part of the movable connecting rod body through a moving column; one end of the rotating shaft passes through the center of the iris inner disc, and the other end is connected with a power generation rotor in the generator chassis. The wind energy utilization rate is effectively increased; potential safety hazards during operation are avoided, and stability and economical efficiency of the wind turbine are improved.

The embodiment of the invention provides an air conditioner, a control method and device of the air conditioner and a computer readable storage medium, the air conditioner is provided with an indoor side and an outdoor side which are oppositely arranged, the outdoor side is provided with an outdoor heat exchanger, an outdoor fan and a condensate water atomization device, the condensate water atomization device is used for atomizing condensate water, and the condensate water atomization device is used for atomizing the condensate water. The air conditioner control method comprises the steps that whether the outdoor illumination intensity is smaller than or equal to the preset illumination intensity or not is determined; and in response to the fact that the outdoor illumination intensity is smaller than or equal to the preset illumination intensity, the condensate water atomization device is controlled to be started, and the outdoor fan is controlled to reduce the operation rotating speed.