AAC Technologies has been granted a patent for a speaker design that improves acoustic performance. The speaker includes a frame, a vibration unit, and a magnetic circuit unit. The vibration unit consists of a diaphragm and a voice coil, with the diaphragm having a first and second suspension and a vibrating portion. The magnetic circuit unit has a yoke and a magnetic gap where the voice coil is inserted. The speaker design also includes a fixing ring connected to the magnetic circuit unit and a second suspension that surrounds the fixing ring. The inner peripheral side of the second suspension is fixed to an end of the fixing ring close to the yoke. The magnetic circuit unit further includes a main magnet, an auxiliary magnet, and a subsidiary magnet. The fixing ring is sleeved outside the subsidiary magnet and connected to it. GlobalData’s report on AAC Technologies gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on AAC Technologies, V2V communication antennas was a key innovation area identified from patents. AAC Technologies's grant share as of September 2023 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
The patent is granted for a speaker design
A recently granted patent (Publication Number: US11770653B2) describes a speaker design that aims to improve sound production. The speaker includes a frame, a vibration unit, and a magnetic circuit unit. The vibration unit consists of a diaphragm with a ring shape and a voice coil that drives the diaphragm to vibrate and produce sound. The diaphragm is composed of a first suspension, a second suspension, and a vibrating portion. The first suspension surrounds the second suspension, with the vibrating portion fixed between them. The first suspension is connected to the frame, while the second suspension is connected to the magnetic circuit unit.
The magnetic circuit unit features a magnetic gap where the voice coil is inserted. It includes a yoke and is positioned opposite the diaphragm on the frame. Additionally, the vibration unit includes a fixing ring connected to the magnetic circuit unit, with the second suspension surrounding it. The fixing ring is fixed to the subsidiary magnet of the magnetic circuit unit.
The subsidiary magnet comprises a subsidiary magnet body and a subsidiary magnet extension portion. The fixing ring is sleeved outside the subsidiary magnet extension portion and connected to the subsidiary magnet body. The second suspension consists of a second suspension portion, a second fixing portion, a third fixing portion, and a fourth fixing portion. The second fixing portion is connected to the vibrating portion, while the third fixing portion is fixed to the fixing ring. The fourth fixing portion is attached to the outer side of the fixing ring.
The speaker design also includes a holder, which is located between the first suspension and the second suspension. The holder has a ring shape and is connected to the inner peripheral side of the first suspension and the outer peripheral side of the second suspension. It serves as the vibrating portion and includes a first holder fixing portion fixed to the voice coil. A dome is sandwiched between the first suspension and the second suspension and fixed to the holder.
The patent also mentions the use of a metal fixing ring and the inclusion of a main pole plate and an auxiliary pole plate in the magnetic circuit unit.
Overall, this patented speaker design aims to enhance sound production by utilizing a specific arrangement of components, including the diaphragm, voice coil, magnetic circuit unit, fixing ring, and holder.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
