4results about How to "Avoid sound quality" patented technology

The present invention relates to the field of audio technology, and specifically to a multi-room wireless audio system, comprising a shell, a left inner surface of the shell being fixedly connected to an audio body, a right side of the shell being fixedly connected to a mesh cover, and a dehumidification mechanism being arranged on the right inner surface of the shell, the dehumidification mechanism comprising a limit rod, a first spring, a gravity block, a first threaded rod, a one-way bearing, a first gear, a second gear, a reciprocating screw, a screw nut, a sponge, a pressure roller and a one-way bearing, the limit rod being fixedly connected to a position of an inner wall of the shell near the front and rear ends of the right side, the gravity block being slidably connected to the rod wall of the limit rod, the first spring being fixedly connected to the upper and lower ends of the gravity block, and the dehumidification mechanism being able to remove water entering the shell when used in some humid environments through the upper and lower height difference when people move, thereby avoiding the influence of water on the sound quality of the audio body and components, and improving the practicability of the device.

The utility model discloses a headrest loudspeaker, and relates to the technical field of loudspeakers. The headrest loudspeaker comprises a loudspeaker system and a shell system, the shell system comprises a front balancer, a basin stand and a rear shell which are fixedly connected in sequence, and the middle of the basin stand is hollowed out and used for containing and installing the loudspeaker system; and a sealed independent sound cavity structure is formed among the loudspeaker system, the basin frame and the rear shell. According to the headrest loudspeaker provided by the embodiment of the invention, the acoustic performance of the loudspeaker system can be optimized, the vibration subsystem in the loudspeaker system can be protected and the frequency response of the loudspeaker can be improved while no additional space is occupied, so that the sound effect of a vehicle-mounted sound system and the riding experience of a driver and passengers can be improved.

The utility model provides a sound box. The sound box comprises a box body; the loudspeaker is arranged on the box body, the loudspeaker comprises a sound cone, a connecting hole is formed in the loudspeaker and / or the box body, the connecting hole is located in the periphery of the sound cone, a limiting surface is arranged in the connecting hole, the limiting surface comprises an arc-shaped surface, and the arc-shaped surface protrudes in the radial direction of the connecting hole in the direction away from the axis of the connecting hole; the mesh enclosure is arranged opposite to the loudspeaker; the connecting structure is fixedly arranged on the mesh enclosure and comprises a limiting part made of an elastic material, the limiting part is arranged in the connecting hole in a penetrating mode and matched with the connecting hole in an inserted mode, the outline of the outer surface of at least part of the limiting part is matched with the outline of the limiting face, and the limiting part is matched with the limiting face in a limiting mode so that the position of the connecting structure at the connecting hole can be limited. According to the scheme, the problem that in the prior art, the connecting columns on the mesh enclosure are matched with the connecting holes in the box body or the loudspeaker in an inserted mode, so that the mesh enclosure vibrates when the sound box plays music, transmission of sound waves is disturbed, and the tone quality is reduced can be solved.

The utility model discloses an audio equipment shell, which comprises a sound box, an expansion device arranged on the sound box, the expansion device comprises a handle, a pull rod, a mounting bin and moving wheels, the moving wheels are mounted on two sides of the sound box, the mounting bin is mounted on one side of the sound box, the pull rod is mounted in the mounting bin, the handle is mounted at one end of the pull rod, and a quick-change mechanism is arranged on one side of each moving wheel. The quick change mechanism comprises a movable column, a spiral groove, a release block, an inserting sleeve, a clamping block, a connecting rod, a first spring, a clamping block, a clamping rod and a clamping sleeve, the movable column is arranged on the side wall of the clamping rod, the spiral groove is formed in the clamping sleeve, the release block is installed on one side of the clamping block, the clamping block is arranged at one end of the clamping rod, and the connecting rod is installed in the inserting sleeve. The first spring sleeves the outer side of the connecting rod, the clamping block is connected to one end of the connecting rod, the clamping sleeve sleeves the outer side of the clamping rod, one end of the clamping rod is connected with the moving wheel, and one side of the sound box is connected with the wire bunching device. The mobile equipment improves the mobility, the maintenance convenience and the cable management efficiency of the equipment.