2results about How to "Reduce suction noise" patented technology

This utility model relates to the field of range hood technology, and more specifically to a smoke collection component for a range hood, comprising: a smoke collection cavity, a main board, and a smoke guide plate. The smoke collection cavity has an inlet at the lower end and an outlet at the top. The main board is installed at the inlet of the smoke collection cavity, and the smoke guide plate is installed below the main board. A negative pressure adsorption port is formed between the smoke guide plate and the main board to allow smoke to flow into the smoke collection cavity. The smoke guide plate includes a plate body, and a concave region is provided in the middle of the plate body, recessed towards the smoke collection cavity. A negative pressure adjustment hole penetrating along the thickness direction of the plate body is provided at the top of the concave region. This utility model optimizes the structure of the smoke guide plate, which helps to reduce the dispersion of oil fumes, thereby improving the absorption effect of oil fumes.

The application provides a cylinder structure and a compressor, which comprise a cylinder, the cylinder comprising a compression cavity and an air inlet channel in communication with the compression cavity, one end of the air inlet channel being in communication with the compression cavity, and the other end of the air inlet channel being in communication with the outside of the cylinder; and a sound elimination cavity in communication with the air inlet channel, so that fluid in the air inlet channel enters the sound elimination cavity, thereby eliminating noise caused by the fluid; wherein the volume of the sound elimination cavity is adjustably arranged. The cylinder structure and the compressor solve the technical problem of poor sound elimination effect of the compressor in the prior art.