Linear vibrator

Abstract

The invention provides a linear vibrator. The linear vibrator comprises a shell, a magnet and an elastic sheet. The elastic sheet is a flat elastic sheet. The elastic sheet comprises a fixed portion,a vibration portion and a vibration arm. A bending portion is formed near an end portion, connected with the fixed portion, of the vibration arm, and a rib width of the vibration arm is smaller than the rib width of the vibration portion and is smaller than a width of the fixed portion. The elastic sheet is fixed between two supporting blocks so that a vibration space is saved, assembling difficulty of a manufacturing process is greatly reduced, a light and thin design of a product is favorably realized, and a manufacturing yield is improved. A plurality of magnets are arranged and are placedat a periphery of a coil. An upper end and a lower end of each magnet are fixed between a basin stand and a non-magnetic-conductive pole piece and are connected with the elastic piece in a welding mode so as to greatly improve a utilization rate of a magnetic circuit, shorten response time of a product, improve a vibration sense, improve overall reliability strength of the magnetic circuit, and solve a problem that the magnetic circuit falls off in an environment reliability test.

Description

technical field [0001] The invention relates to the field of linear vibrating equipment, in particular to a linear vibrator. Background technique [0002] 1. Compared with the linear vibrators used in electronic products, the existing linear vibrators on the market have higher and stricter requirements on the vibration sense. In order to achieve higher performance, the linear vibrators are often The magnetic induction intensity is high, and the vibration space design is large, resulting in a large product appearance size, which is more difficult to assemble with "Z"-shaped shrapnel, lowers the product process yield, and occupies a large installation space of the vehicle-mounted screen; [0003] 2. Due to the large design size of the linear vibrator, the magnetic gap is too small on one side during the assembly process between the magnetic circuit component and the stator component, and friction occurs during the vibration process, resulting in noise; [0004] 3. The elastic...

AI Technical Summary

Problems solved by technology

[0002] 1. Compared with the linear vibrators used in electronic products, the existing linear vibrators on the market have higher and stricter requirements on the vibration sense. In order to achieve higher performance, the linear vibrators are often The magnetic induction intensity is high, and the vibration space design is large, resulting in a large product appearance size, which makes it more difficult to assemble with "Z"-shaped shrapnel, reduces the product process yield, and takes up a large installation space of the vehicle-mounted screen;

[0003] 2. Due to the large design size of the linear vibrator, the magnetic gap is too small on one side during the assembly process between the magnetic circuit assembly and the stator assembly, and friction occurs during the vibration process, resulting in noise;

[0004] 3. The elastic element of the through-slot linear vibrator is fixed by welding to the basin frame and the upper and lower shells. The adjustable space of this vibrator structure is small, the requirements for the dimensional accuracy of the material are high, and the cost of a single mold is high. When the product performance needs When changing, high mold repair costs are often incurred

Images