| 摘要 |
<p>A miniature negative-ion air purifier comprising a housing, a circuit board (4) provided with a USB connector (41) and used for generating negative ions, and an outer housing (3) removably sleeved onto the USB connector (41). Because the miniature negative-ion air purifier also comprises the housing (3) that is removably sleeved onto the USB connector (41), when the miniature negative-ion air purifier is not in use, the outer housing (3) is sleeved onto the USB connector (41) to prevent the USB connector (41) from being damaged; when in use, either the outer housing (3) is removed or the outer housing (3) is moved to a position that does not affect workings of the miniature negative-ion air purifier to complete the process.</p> |
