| 摘要 |
<p>A miniature sound box with a telescopic resonance cavity. The miniature sound box comprises a loudspeaker, a sound box upper case, a sound box middle case, a sound box lower case, an audio line, an audio plug, a circuit board (1), and the telescopic resonance cavity. A universal serial bus (USB) interface (3) and a switch (4) are located on the circuit board (1), the USB interface (3) is symmetrical with the switch (4), and a battery (2) is located between the USB interface (3) and the switch (4). The USB interface (3) and the switch (4) are symmetrically disposed on the circuit board (1), the battery (2) is disposed between the USB interface (3) and the switch (4) and abuts a circuit board insulation surface (5), and the battery (2) is configured to be a cuboid; therefore, the occupancy space of the battery (2) in the sound box lower case can be reduced. The circuit board (1) is provided with positioning holes (6) thereon, and the sound box lower case is provided with positioning ribs thereon. The positioning ribs are fixed to the positioning holes (6), and the positioning holes (6) abut against two side edges corresponding to widths of the cuboid battery (2), so that the positioning ribs can be used to fix the battery (2), thereby enabling the battery (2) to be not easy to wobble.</p> |
