Sound-output device
The present application discloses a sound-output device, a vibration speaker configured to generate a bone-conducted sound wave; and an air-conducted speaker configured to generate an air-conducted sound wave. The vibration speaker is coupled to the air-conducted speaker through a mechanical structure; and the bone-conducted sound wave is input to the air-conducted speaker at least in part as an input signal.
1. A sound-output device, comprising:
a vibration speaker configured to generate a bone-conducted sound wave; and
an air-conducted speaker configured to generate an air-conducted sound wave, wherein
the vibration speaker is coupled to the air-conducted speaker through a mechanical structure, wherein
a first mechanical vibration is generated by the vibration speaker to cause the bone-conducted sound wave, a second mechanical vibration is generated under an actuation of the first mechanical vibration, and the second mechanical vibration causes the air-conducted sound wave, such that a vibration derived from the vibration speaker is input to the air-conducted speaker at least in part as an input signal.
2. The sound-output device according to claim 1 , further comprising:
a signal processing module configured to generate a control signal,
wherein the vibration speaker includes a vibration assembly electrically connected to the signal processing module to receive the control signal, and generate the bone-conducted sound wave based on the control signal, and
the air-conducted speaker includes a housing coupled to the vibration assembly to generate the air-conducted sound wave under an actuation of the vibration assembly.
3. The sound-output device according to claim 2 , wherein the vibration assembly includes:
a magnetic circuit system configured to generate a first magnetic field;
a vibration plate connected to the housing; and
a coil connected to the vibration plate and electrically connected to the signal processing module to receive the control signal and generate a second magnetic field based on the control signal, and the first magnetic field interacting with the second magnetic field to cause the vibration plate to generate the bone-conducted sound wave.
4. The sound-output device according to claim 3 , wherein the air-conducted speaker further includes a membrane connected to the magnetic circuit system and the housing, and the first magnetic field interacts with the second magnetic field to cause the membrane to generate the air-conducted sound wave.
5. The sound-output device according to claim 4 , wherein the vibration plate and the housing define a cavity, and the magnetic circuit system and the membrane are disposed within the cavity.
6. The sound-output device according to claim 3 , wherein the housing includes a tuning hole, the air-conducted speaker includes a tuning mesh, and the tuning mesh covers the tuning hole.
7. The sound-output device according to claim 6 , wherein the vibration plate includes a sound hole through which the air-conducted sound wave is output from inside the housing to outside the housing.
8. The sound-output device according to claim 7 , wherein the air-conducted speaker includes a tuning mesh that covers the sound hole.
9. The sound-output device according to claim 6 , wherein the housing includes a sound hole through which the air-conducted sound wave is output from inside the housing to outside the housing.
10. The sound-output device according to claim 9 , wherein the air-conducted speaker includes a tuning mesh that covers the sound hole.
11. The sound-output device according to claim 9 , wherein the magnetic circuit system is connected to the housing via a first elastic member.
12. The sound-output device according to claim 9 , wherein the magnetic circuit system is connected to the vibration plate via a first elastic member; and the vibration plate is connected to the housing via a second elastic member.
13. The sound-output device according to claim 9 , wherein the air-conducted speaker includes a sound tube, and the sound tube communicates with the sound hole.
14. The sound-output device according to claim 10 , wherein the housing includes a tuning hole,
the air-conducted speaker includes a passive membrane cover the tuning hole, and
the bone-conducted sound waves cause air pressure changes in the housing, thereby actuating the passive membrane to vibrate to generate a secondary air-conducted sound wave.
15. A sound-output device, comprising:
a bone-conducted signal processing module configured to generate a bone-conducted control signal;
an air-conducted signal processing module configured to generate an air-conducted control signal;
a housing;
a magnetic circuit system configured to generate a first magnetic field;
a vibration plate connected to the housing;
a first coil connected to the vibration plate and electrically connected to the bone-conducted signal processing module to receive the bone-conducted control signal and generate a second magnetic field based on the bone-conducted control signal, the first magnetic field interacting with the second magnetic field to cause the vibration plate to generate a first mechanical vibration so as to cause a bone-conducted sound wave;
a membrane connected to the housing; and
a second coil connected to the membrane and electrically connected to the air-conducted signal processing module to receive the air-conducted control signal and generate a third magnetic field based on the air-conducted control signal, the first magnetic field interacting with the third magnetic field to cause the membrane to generate a second mechanical vibration under an actuation of the first mechanical vibration, so as to cause an air-conducted sound wave.
16. The sound-output device according to claim 15 , wherein the vibration plate and the housing define a cavity, and the magnetic circuit system, the membrane and the second coil are located within the cavity.
17. The sound-output device according to claim 15 , wherein the housing includes a sound hole and a tuning hole, the sound-output device includes a first tuning mesh and a second tuning mesh, the first tuning mesh covers the sound hole, and the second tuning mesh covers the tuning hole.
18. The sound-output device according to claim 15 , further comprising: an elastic member to connect the magnetic circuit system to the housing.