34results about How to "With exhaust function" patented technology

The invention solves the problems that air supply operation allows the introduction of outside air into a room but gives unpleasant feels to dwellers when the outside air is contaminated by various materials, and if the outside air is introduced into the room via a filter to solve this problem, an air cleaning filter provided in an air supply / exhaust unit brings about the air supply / exhaust unit to be wider and so its heat exchanger should be smaller resulting in a reduction in the capability of conditioning temperature / humidity as the originally basic purpose of an air-conditioner and the heat exchanger, and if not changed in size, it brings about an indoor unit to be larger in shape. An air supply filter 21 is provided through which outside air passes during air supplying operation. The rotating shaft of a sub-fan 19 is arranged in parallel to the rotating shaft of a main fan 9 so that the air suction face of the sub-fan 19 is not at a right angle to the air passage face of the air supply filter 21.

The invention discloses a plant protection unmanned aerial vehicle indoor test platform. The plant protection unmanned aerial vehicle indoor test platform comprises a base frame, a rotating shaft, a fixed bracket, sliding frames, distance measuring instruments and a liquid level collecting device; the base frame comprises a base block and supporting rods which are fixedly arranged on the base frame; the rotating shaft is detachably arranged on the supporting rods of the base frame, and is provided with a body; the body is arranged on the rotating shaft in a sleeving manner to form a whole body; the fixed bracket is arranged on the base frame through the rotating shaft; the sliding frames are arranged on the body at equal intervals; a sliding groove is formed in the bottom of each sliding frame; the distance measuring instruments are arranged in the sliding grooves; the liquid level collecting device is arranged at the top of the base frame and is connected with the supporting rods through the rotating shaft and a hanging rope; the height of a plant protection unmanned aerial vehicle can be adjusted; the pitch angle of the unmanned aerial vehicle can be adjusted precisely, so that the pitch angle of the unmanned aerial vehicle is consistent with that in actual flight; a better detecting result is obtained; a plant protection unmanned aerial vehicle indoor test method is also provided; the position and azimuth angle information of the plant protection unmanned aerial vehicle are measured through the distance measuring instruments; through the liquid level connecting device, the plant protection unmanned aerial vehicle spraying droplet distribution data are acquired, the error introduced by the liquid level collecting device is calculated and corrected, and the spraying droplet distribution probability is obtained.