Sound-producing device
The present disclosure may provide a sound-producing device comprising a diaphragm and a housing. The housing may include a first sound guide hole and a second sound guide hole. The diaphragm may be disposed in the housing. When a user wears the sound-producing device, a distance between the first sound guide hole and the ear canal opening may be smaller than a distance between the diaphragm and the ear canal opening, a range of an included angle between a connection line between the first sound guide hole and the second sound guide hole and a connection line between the center of mass of the diaphragm and the ear canal opening may be smaller than 45°, and a distance between the second sound guide hole and the ear canal opening may be greater than the distance between the diaphragm and the ear canal opening.
1. A sound-producing device, comprising:
a diaphragm; and
a housing, wherein the housing includes a first sound guide hole and a second sound guide hole, the diaphragm is disposed in the housing, and the first sound guide hole and the second sound guide hole are respectively located on both sides of the diaphragm;
when a user wears the sound-producing device, a distance between the first sound guide hole and an ear canal opening of the user is smaller than a distance between the diaphragm and the ear canal opening of the user, an included angle between a connection line between the first sound guide hole and the second sound guide hole and a connection line between the center of mass of the diaphragm and the ear canal opening of the user is smaller than 45°, and a distance between the second sound guide hole and the ear canal opening of the user is greater than the distance between the diaphragm and the ear canal opening of the user.
2. The sound-producing device of claim 1 , wherein the distance between the first sound guide hole and the ear canal opening of the user is 0.5 cm-2.5 cm.
3. The sound-producing device of claim 1 , wherein the distance between the second sound guide hole and the ear canal opening of the user is 1.5 cm-5 cm.
4. The sound-producing device of claim 1 , wherein the distance between the diaphragm and the ear canal opening of the user is 1.5 cm-3 cm.
5. The sound-producing device of claim 1 , wherein a ratio of the distance between the diaphragm and the ear canal opening of the user to the distance between the first sound guide hole and the ear canal opening of the user is 1.4-3.
6. The sound-producing device of claim 1 , wherein a ratio of the distance between the second sound guide hole and the ear canal opening of the user to the distance between the first sound guide hole and the ear canal opening of the user is 1.4-5.
7. The sound-producing device of claim 1 , wherein the housing and the diaphragm form a first acoustic cavity for radiating sound, the first acoustic cavity and the first sound guide hole are acoustically coupled, the first sound guide hole includes a first hole part and a second hole part, the first hole part and the second hole part are connected, and the first hole part and the second hole part are located at different side walls of the housing corresponding to the first acoustic cavity.
8. The sound-producing device of claim 7 , wherein a length of the side wall where the first hole part is located is greater than a length of the side wall where the second hole part is located.
9. The sound-producing device of claim 8 , wherein a ratio of a length of the second hole part to the length of the side wall where the second hole part is located is ⅙-⅔.
10. The sound-producing device of claim 1 , further comprising a magnetic circuit structure, wherein the magnetic circuit structure is connected with the housing, the diaphragm is connected with the magnetic circuit structure through a voice coil, the housing and the magnetic circuit structure form a second acoustic cavity for radiating sound, the second acoustic cavity and the second sound guide hole are acoustically coupled, and the second sound guide hole is located on a side wall corresponding to the second acoustic cavity.
11. The sound-producing device of claim 10 , wherein the magnetic circuit structure of the sound-producing device includes a magnetic conductive cover, the magnetic conductive cover faces away from the diaphragm, a portion of the magnetic conductive cover is used as a side wall of the housing, and the second sound guide hole is located on the magnetic conductive cover.
12. The sound-producing device of claim 1 , wherein a ratio of a difference between an effective area of the second sound guide hole and an effective area of the first sound guide hole to the effective area of the first sound guide hole or the effective area of the second sound guide hole is smaller than or equal to 40%.
13. The sound-producing device of claim 1 , comprising a wearing component, wherein the wearing component includes a connecting segment and a concave segment connected with the connecting segment, the concave segment causes an upper edge of the wearing component to have a downward depression on the wearing component, and the housing is connected with the concave segment.
14. The sound-producing device of claim 13 , wherein the concave segment is configured to cause the concave segment close to an ear of the user when the user wears the wearing component, and the concave segment enables the first sound guide hole to be located near the ear of the user.
15. The sound-producing device of claim 14 , wherein the concave segment includes a mounting part and a transition part connected at an angle, the housing is arranged on the mounting part or the transition part, and the transition part and the mounting part are bent and connected with the connecting segment and extend downwards.
16. The sound-producing device of claim 15 , wherein the angle is 15°-150°.
17. The sound-producing device of claim 15 , wherein the connecting segment includes a first connecting segment, the transition part is connected between the mounting part and the first connecting segment, and the transition part is bent and connected with the first connecting segment and extends downwards.
18. The sound-producing device of claim 17 , wherein the connecting segment further includes a second connecting segment, and the second connecting segment is connected to one end of the mounting part.
19. The sound-producing device of claim 13 , wherein the first sound guide hole is disposed in at least one of an inner side of the concave segment facing the head of the user, an edge of the concave segment facing a tragus of the user, or a side surface of the concave segment facing the tragus of the user.
20. The sound-producing device of claim 13 , wherein the wearing component includes a left ear wearing part and a right ear wearing part which are respectively used to be erected on the left and right ears of the user.