7results about How to "Guaranteed acoustic performance" patented technology

The application discloses a spherical top, a processing technology thereof and a sound generating device, and is applied to the sound generating device. The spherical top comprises a base layer and an electrophoretic layer. A transition layer is formed on the surface of the base layer. The electrophoretic layer is formed on the side of the transition layer away from the base layer through an electrophoretic process. The application aims to provide a spherical top with good heat dissipation effect. The connection strength and stability between the electrophoretic layer and the base layer for realizing heat dissipation are effectively improved. Meanwhile, the electrophoretic layer can be uniformly coated on the base layer, and the heat dissipation efficiency of the spherical top is improved.

The utility model discloses a horn installation structure and an electronic device, the horn installation structure comprises a housing, the housing is provided with an installation groove, the groove bottom of the installation groove is provided with a sound outlet hole and a waterproof strip, the sound outlet hole penetrates through the groove bottom of the installation groove, the waterproof strip is arranged along the outer side of the sound outlet hole for a circle, and the waterproof strip is arranged on the outer side of the installation groove. The waterproof strip and the shell are integrally formed; and the loudspeaker is adaptively arranged in the mounting groove, the loudspeaker is provided with a clamping piece, a clamping part is arranged at a corresponding position of the shell, and when the clamping piece is adaptively clamped with the clamping part, the loudspeaker extrudes the waterproof strip, so that the loudspeaker is hermetically connected with the groove bottom of the mounting groove. According to the utility model, the required space is small, the waterproof effect is good, the assembly is simple, and the first pass yield of the production process is improved.

This utility model discloses a sound port protection structure for an acoustic product, comprising an acoustic product, a shell, a soft rubber sleeve, and a waterproof cloth. The opening of the shell is equipped with a short vertical baffle, a high vertical baffle, and a horizontal baffle, forming staggered upper and lower sound channels. This utility model has a reasonable structural design. The soft rubber sleeve covers the acoustic product, providing cushioning and shock absorption, thus offering initial protection. Utilizing the properties of the waterproof cloth, it allows sound to pass through while blocking liquids and particles, providing excellent waterproof and dustproof effects. Simultaneously, the structural cooperation of the short, high, and horizontal baffles forms a staggered labyrinthine structure of upper, middle, and lower sound channels. The tortuous and staggered sound channel paths effectively block directly intruding rainwater, washing water jets, and larger dust particles, greatly reducing the risk of high-pressure water directly impacting the waterproof cloth, while sound waves can easily propagate through the tortuous sound channel paths with minimal sound loss, ensuring acoustic performance.

This application relates to a muffler, exhaust assembly, and vehicle, belonging to the field of muffler drainage technology. It includes: a housing, a drainage component, ball bearings, and a moving assembly. The housing is connected to the engine. The drainage component is located at the bottom of the housing and extends through the bottom of the housing. A channel is provided inside the drainage component, and an inlet and an outlet are provided on the drainage component, communicating with the channel. The inlet is located inside the housing, and the outlet is located outside the housing. The ball bearings roll within the drainage component. The moving assembly drives the ball bearings to move within the channel, thereby closing or opening the outlet. By controlling the movement of the ball bearings through the moving assembly, the outlet can be opened or closed as needed, maintaining the sealing of the outlet in the non-draining state, preventing exhaust gas and noise leakage, and ensuring the acoustic performance of the muffler.

The utility model discloses a centering support piece and sound unit, centering support piece includes internal fixed part, cantilever part and outer fixed part, the cantilever part is connected the internal fixed part, the inner edge of outer fixed part is connected the cantilever part, and the outer fixed part is provided with the reinforcing portion, and the reinforcing portion is along the inner edge of outer fixed part setting. This centering support piece structure is novel, and the inner edge of outer fixed part is provided with the reinforcing portion, which greatly enhances the structural strength of the inner edge area of outer fixed part, is favorable for reducing the deformation degree of the area of cantilever part close to outer fixed part, thereby avoiding the interference of cantilever part and turn -ups when the sound unit works, and further guaranteeing the acoustic performance and structural stability of sound unit.

The utility model discloses a sounding unit, which comprises a magnetic circuit assembly, a voice coil, a diaphragm assembly and a framework, the magnetic circuit assembly comprises an upper yoke, a lower yoke, a central magnetic structure and an edge magnetic structure, the central magnetic structure and the edge magnetic structure are respectively arranged on the lower yoke, and the upper yoke covers the central magnetic structure and the edge magnetic structure. The magnetic circuit assembly is provided with a magnetic gap, the magnetic gap surrounds the central magnetic structure, the magnetic gap is located between the upper yoke and the lower yoke, the magnetic circuit assembly is provided with a first magnetic loop and a second magnetic loop which are opposite in direction, the first magnetic loop penetrates through the upper portion of the magnetic gap, and the second magnetic loop penetrates through the lower portion of the magnetic gap. The second magnetic loop passes through the lower part of the magnetic gap; the framework comprises an inner mounting part, a connecting part and an outer mounting part which are connected in sequence, the inner mounting part is connected with the voice coil, the outer mounting part is connected with the transition part, a stamping convex hull is arranged on the connecting part, and a reinforcing block is arranged in the stamping convex hull. The sounding unit is stable in structure and excellent in performance.

The utility model discloses a sounding unit, which comprises a magnetic circuit assembly, a voice coil, a diaphragm assembly and a framework, the magnetic circuit assembly comprises an upper yoke, a lower yoke, a central magnetic structure and an edge magnetic structure, the central magnetic structure and the edge magnetic structure are respectively arranged on the lower yoke, and the upper yoke covers the central magnetic structure and the edge magnetic structure. The magnetic circuit assembly is provided with a magnetic gap, the magnetic gap surrounds the central magnetic structure, the magnetic gap is located between the upper yoke and the lower yoke, the magnetic circuit assembly is provided with a first magnetic loop and a second magnetic loop which are opposite in direction, the first magnetic loop penetrates through the upper portion of the magnetic gap, and the second magnetic loop penetrates through the lower portion of the magnetic gap. The second magnetic loop passes through the lower part of the magnetic gap; the voice coil is located in the magnetic gap; the framework comprises an inner mounting part, a connecting part and an outer mounting part which are connected in sequence, the inner mounting part is connected with the voice coil, the outer mounting part is connected with the transition part, and a reinforcing boss is arranged on the connecting part. The sounding unit is stable in structure and excellent in performance.