2results about How to "Avoid potholes" patented technology

The utility model relates to skin care field especially, it relates to a matrix type ultrasonic transducer. The matrix type ultrasonic transducer provided by the utility model, including ultrasonic head, the quantity of ultrasonic head has multiple, horizontal interval juxtaposition. The matrix type ultrasonic transducer of the utility model changes and sets up multiple small ultrasonic heads for single large ultrasonic head, and multiple ultrasonic heads horizontal interval juxtaposition, and the energy of each small ultrasonic head is lower, and these ultrasonic heads work simultaneously, and the energy that concentrates in a point originally is evenly dispersed to a larger area, avoids the energy of single ultrasonic head acting on the skin surface of the skin surface to be cared for too concentrated to avoid the skin surface to be cared for to cause the pit and hole.

The utility model discloses a dry granulator with heat protection function, and a plurality of cooling cavities are arranged along the long axis direction of the compression roller inside the compression roller, one end of the compression roller is provided with a water inlet cavity in communication with one end of the cooling cavity, the other end of the compression roller is provided with a water outlet cavity in communication with the other end of the cooling cavity, a thermometer is arranged on the compression roller body to detect the temperature of the side of the compression roller close to the water outlet end, the surface of the compression roller is provided with an air cooling cleaning mechanism to clean the adhesive on the surface of the compression roller, the thermometer detects the temperature of the side of the compression roller close to the water outlet end, which avoids the high temperature of the compression roller close to the water outlet end and the easy occurrence of the adhesive phenomenon, and the water inlet amount and speed can be controlled conveniently, so that the compression roller has a good cooling heat protection effect.