Linear vibration motor
A technology of linear vibration and vibration unit, applied in the direction of electromechanical devices, electrical components, etc., can solve problems affecting vibration performance, non-use control, unfavorable linear vibration motor damping control, etc., to achieve easy assembly, improve vibration performance and reliability Effect
Active Publication Date: 2018-06-26
AAC TECH PTE LTD
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Problems solved by technology
[0004] However, in the linear vibrating motor of the related art, the vibrating unit includes magnetic steel. After assembly, the vibrating unit is affected by the magnetic attraction between the magnetic steel and the cover plate, causing the Z-axis direction of the vibration (perpendicular to The space in the direction of the cover plate) is offset, and this offset will fluctuate with the fluctuation of the performance of the raw material of the magnetic steel, and the control of the space in the Z-axis direction during the assembly process is not used, which is not conducive to the damping control of the linear vibration motor. Affect its vibration performance
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] Please also see Figure 1-4 , the present invention provides a linear vibration motor 100 , including a housing 1 , an upper cover 2 , a lower cover 3 , a vibration unit 4 , a first FPC 5 , elastic leads 6 , elastic members 7 and a stator unit 8 .
[0029] The upper cover 2 and the lower cover 3 respectively cover opposite ends of the housing 1 and jointly enclose a receiving space 10 . In this embodiment, the upper cover 2 , the lower cover 3 and the ...
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The invention provides a linear vibration motor. The linear vibration motor comprises a shell, an upper cover, a lower cover, a vibration unit, an elastic piece and a stator unit, wherein the upper cover and the lower cover respectively cover two opposite ends of the shell and are jointly encircled to form an accommodating space, the vibration unit is arranged in the accommodating unit, the elastic piece is fixedly arranged at the shell and is used for arranging the vibration unit in the accommodating space in a suspension way, the stator unit is arranged in the accommodating space and is arranged relative to the vibration unit at intervals, the vibration unit comprises a mass block and a coil unit, the coil unit is fixedly arranged on the mass block, the stator unit comprises a first magnetic path unit, the first magnetic path unit is fixedly arranged on the upper cover and is opposite to the coil unit, a first flexible printed circuit (FPC) is arranged at the lower cover and is usedfor connecting an external electrical signal, and electrical connection is formed between the coil unit and the first FPC. Compared with the prior art, the linear vibration motor is high in reliability and good in vibration performance.
Description
technical field [0001] The invention relates to a motor, in particular to a linear vibration motor used in the field of mobile electronic products. Background technique [0002] With the development of electronic technology, portable consumer electronic products are becoming more and more popular, such as mobile phones, handheld game consoles, navigation devices or handheld multimedia entertainment equipment, etc. These electronic products generally use linear vibration motors for system feedback , such as mobile phone call prompts, information prompts, navigation prompts, vibration feedback from game consoles, etc. Such a wide range of applications requires excellent performance and long service life of the vibration motor. [0003] The linear vibrating motor in the related art includes a base, a cover plate covering the base and jointly forming a storage space, a vibration unit with a magnetic steel located in the storage space, and fixing and suspending the vibration uni...
Claims
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IPC IPC(8): H02K33/18
CPCH02K33/18
Inventor 朱秉科高开艳
Owner AAC TECH PTE LTD