Covering structure, sound producing package and manufacturing method of sound producing package

A sound producing package, comprising:

• a sound producing component configured to produce an acoustic wave;
• and
• a covering structure covering the sound producing component, the covering structure comprising:
• a tube structure having a first sound opening and a second sound opening, wherein a tube cavity connected between the first sound opening and the second sound opening exists inside the tube structure;
• a first chamber, wherein a first cavity exists inside the first chamber and is connected to the tube cavity of the tube structure;
• a first connecting structure connected between the tube structure and the first chamber, wherein the first connecting structure is between the first sound opening and the second sound opening, and the first cavity of the first chamber is connected to the tube cavity of the tube structure through the first connecting structure;
• a second chamber, wherein a second cavity exists inside the second chamber and is connected to the first cavity of the first chamber;
• and
• a second connecting structure connected between the first chamber and the second chamber, wherein the second cavity of the second chamber is connected to the first cavity of the first chamber through the second connecting structure;
• wherein an acoustic pathway of the covering structure is formed between the first sound opening and the second sound opening, and the acoustic wave propagates through the acoustic pathway.

A manufacturing method of a sound producing package, comprising:

• forming a sound producing component, wherein the sound producing component is configured to produce an acoustic wave;
• and
• forming a covering structure to cover the sound producing component, wherein the covering structure comprises:
• a tube structure having a first sound opening and a second sound opening, wherein a tube cavity connected between the first sound opening and the second sound opening exists inside the tube structure;
• a first chamber, wherein a first cavity exists inside the first chamber and is connected to the tube cavity of the tube structure;
• a first connecting structure connected between the tube structure and the first chamber, wherein the first connecting structure is between the first sound opening and the second sound opening, and the first cavity of the first chamber is connected to the tube cavity of the tube structure through the first connecting structure;
• a second chamber, wherein a second cavity exists inside the second chamber and is connected to the first cavity of the first chamber;
• and
• a second connecting structure connected between the first chamber and the second chamber, wherein the second cavity of the second chamber is connected to the first cavity of the first chamber through the second connecting structure;
• wherein an acoustic pathway of the covering structure is formed between the first sound opening and the second sound opening, and the acoustic wave propagates through the acoustic pathway.

A covering structure, disposed within a sound producing package, the covering structure comprising:

• a tube structure having a first sound opening and a second sound opening, wherein a tube cavity connected between the first sound opening and the second sound opening exists inside the tube structure;
• a first chamber, wherein a first cavity exists inside the first chamber and is connected to the tube cavity of the tube structure;
• and
• a first connecting structure connected between the tube structure and the first chamber, wherein the first connecting structure is between the first sound opening and the second sound opening, and the first cavity of the first chamber is connected to the tube cavity of the tube structure through the first connecting structure;
• wherein an acoustic pathway of the covering structure is formed between the first sound opening and the second sound opening;
• wherein the covering structure is configured to cover a sound producing component of the sound producing package to make a frequency response of the sound producing package have three peaks in a frequency range from 200 Hz to 4000 Hz.

A covering structure, disposed within a sound producing package, the covering structure comprising:

• a tube structure having a first sound opening and a second sound opening, wherein a tube cavity connected between the first sound opening and the second sound opening exists inside the tube structure;
• a first chamber, wherein a first cavity exists inside the first chamber and is connected to the tube cavity of the tube structure;
• and
• a first connecting structure connected between the tube structure and the first chamber, wherein the first connecting structure is between the first sound opening and the second sound opening, and the first cavity of the first chamber is connected to the tube cavity of the tube structure through the first connecting structure;
• wherein an acoustic pathway of the covering structure is formed between the first sound opening and the second sound opening;
• wherein a maximum transmission loss caused by the covering structure to an acoustic wave passing through the acoustic pathway occurs in a frequency range from 2000 Hz to 4000 Hz, and a frequency at which the maximum transmission loss occurs is corresponding to a frequency of a peak of a frequency response of the sound producing package.