AAC Technologies has filed a patent for a linear motor with a housing, vibration unit, and stator unit. The vibration unit includes a weight and elastic member with soldering plates for increased fatigue life and reliability. The motor also features a connection portion and extending portion on the soldering plate. 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.
Linear motor with improved fatigue life and reliability
A recently filed patent (Publication Number: US20230318424A1) describes a vibration motor with several unique features. The motor includes a housing with a receiving space, a vibration unit, and a stator unit. The vibration unit consists of a weight, a first driving member fixed to the weight, and an elastic member that suspends the weight in the receiving space. The elastic member includes a first fixation portion fixed to the weight, a second fixation portion fixed to the housing, and a connection portion that connects the two fixation portions. The stator unit includes a second driving member that faces the first driving member.
One notable aspect of the motor is the inclusion of at least one soldering plate, which is fixed to either the first fixation portion or the second fixation portion. The soldering plate has a rectangular portion with a certain width and an extending portion that is narrower than the rectangular portion. The extending portion extends from one side of the rectangular portion in a direction parallel to another side and away from the opposite side. Additionally, the extending portion has a third side that is parallel to the first side of the rectangular portion, and the vertical distance between the third side and its adjacent first side is greater than 0.2 mm. Furthermore, the vertical distance between an endpoint of the third side and the second side of the rectangular portion is greater than 0.5 mm.
The patent also describes the shape and location of the soldering plate. The extending portion of the soldering plate is in a trapezoid shape, and it is located on the side of either the first fixation portion or the second fixation portion that is away from the weight or the housing, respectively. Additionally, the weight includes a fixation protrusion that is fixed to the first fixation portion, and the soldering plate overlaps with the fixation protrusion along the thickness direction of the soldering plate. The rectangular portion of the soldering plate has a pair of parallel first sides and a pair of perpendicular second sides, with the first side extending along the long axis of the rectangular portion and the second side extending along the short axis.
Overall, this patent presents a vibration motor design with specific features related to the structure and placement of soldering plates. These features aim to improve the performance and reliability of the motor, potentially leading to advancements in various industries that utilize vibration motors.
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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.
