DUST-PROOF ASSEMBLY, ELECTRONIC DEVICE AND SMART WATCH

A dust-proof assembly (300), comprising a dust-proof mesh (310) and a sealing mesh (320), wherein the sealing mesh (320) comprises a support portion (321) and a flexible sealing body (322), the support portion (321) being provided with a plurality of through holes (3213); the dust-proof mesh (310) and the support portion (321) are arranged opposite each other, and the dust-proof mesh (310) is connected to the support portion (321); and the flexible sealing body (322) is connected to the support portion (321) and at least partially protrudes out of the dust-proof mesh (310). By forming the flexible sealing body (322) on the support portion (321) of the sealing mesh (320), the flexible sealing body can be attached to the shell (100) of an electronic device (10) during application, thereby improving the sealing performance of the dust-proof assembly (300). The dust-proof mesh (310) and the sealing mesh (320) are arranged opposite each other, and can be pre-assembled to form an integrated structure, and when same is applied to the electronic device (10), a modular assembly effect can be achieved, and the assembly convenience is thus improved. The electronic device (10) or a smart watch using the dust-proof assembly (300) can have a better dust-proof effect, and the influence of dust on an electro-acoustic assembly (200) in the shell (100) is avoided. Further provided are the electronic device (10) and the smart watch.