3results about How to "With noise reduction function" patented technology

The utility model relates to high -speed railway road sound barrier technical field, concretely is a kind of high-speed railway road sound barrier with wind -guiding structure, the lower portion of stand is equipped with rigid pedestal one, and rigid pedestal one and stand are inlayed connection, the rear end of adjusting swivel rod is rotatably connected in adjusting swivel rod, the upper portion of adjusting swivel rod is equipped with adjusting nut, and adjusting nut and adjusting swivel rod are welded, the middle portion of adjusting swivel rod is equipped with fastening nut, and fastening nut and adjusting swivel rod are threadedly connected, the lower portion of adjusting swivel rod is equipped with support rod;Beneficial effect is: stand realizes length adjustment by adjusting swivel rod in the telescopic support rod, after fastening nut locking, and rigid pedestal two form triangular support structure, enhance wind load capacity;Air deflector realizes airflow self-adapting deflection by return spring, and air deflector gap formed by cooperation connecting rod effectively reduces wind pressure, simultaneously sound-absorbing board has noise reduction function, and overall structure gives consideration to stability and functionality.

This application relates to a method for switching headphone operating modes, a headphone, a computer-readable storage medium, and a computer program product. Applied to headphones, the headphones include a vent valve and an active noise cancellation module. The method includes: acquiring head posture data; adjusting the operating state of the vent valve and the active noise cancellation module based on the head posture data to switch the current operating mode; wherein the vent valve is used to allow or restrict external ambient sound from entering the ear; the active noise cancellation mode neutralizes the ambient sound through reverse sound waves. Using this method, on the one hand, switching headphone modes does not require physical contact with the headphones or through a mobile device application, greatly simplifying the operation process and improving operational convenience and efficiency. On the other hand, it achieves a balance between noise cancellation and wearing comfort in the headphones.

The utility model discloses an air conditioner compressor shell structure with noise reduction structure, include: shell body, the inside of shell body is provided with air conditioner compressor, and the middle part of shell body front side is equipped with the air outlet, the below fixed mounting of shell body has first support bottom plate, and the inside of shell body with the below of first support bottom plate all is provided with the noise reduction structure for guaranteeing people's physical and mental health. This air conditioner compressor shell structure with noise reduction structure, through set up the noise reduction structure, can effectively reduce the noise that the compressor produces when operating, can reduce the pollution of noise, guarantee people's physical and mental health, set up the rain -proof mechanism simultaneously, can effectively avoid rainwater to enter the inside of compressor shell, thereby can improve the service life of compressor, in addition set up the anti -clogging mechanism, can clean the air outlet that sets up at the compressor shell, guarantee normal exhaust, reduce the blockage of exhaust port that impurity enters the exhaust port.