Sound generating device module
The present application discloses a sound generating device module, comprising: a housing having a cavity therein; a frame fixedly provided in the cavity, a high-pitch sound generating unit and a low-pitch sound generating unit are respectively provided on two opposite sides of the frame; a baffle plate is provided on a side of the housing corresponding to the high-pitch sound generating unit, and the baffle plate and the housing together form a side sound output port corresponding to the high-pitch sound generating unit; the sound generating device module is configured to form a front sound output structure for the low-pitch sound generating unit; and a reinforcement plate is provided in the frame, and the reinforcement plate is interposed between the high-pitch sound generating unit and the low-pitch sound generating unit.
1. A sound generating device assembly, comprising:
a housing having a cavity therein; and
a frame fixedly provided in the cavity, a high-pitch sound generator and a low-pitch sound generator are respectively provided on two opposite sides of the frame;
wherein a baffle plate is provided on a side of the housing corresponding to the high-pitch sound generator, and the baffle plate and the housing together form a side sound output port corresponding to the high-pitch sound generator;
wherein the sound generating device assembly is configured to form a front sound output structure for the low-pitch sound generator; and
wherein a reinforcement plate is provided in the frame, and the reinforcement plate is interposed between the high-pitch sound generator and the low-pitch sound generator.
2. The sound generating device assembly of claim 1 , wherein an edge of the frame bends and extends towards a direction opposite to the baffle plate to form a first accommodation groove, and at least a part of a structure of the low-pitch sound generator is disposed in the first accommodation groove;
wherein a through hole is provided at a middle of the frame, a side wall of the through hole bends and extends towards a direction of the baffle plate to form a second accommodation groove, and at least a part of a structure of the high-pitch sound generator is disposed in the second accommodation groove; and
wherein the reinforcement plate is provided at a bottom of the first accommodation groove, and the first accommodation groove and the second accommodation groove are partitioned by the reinforcement plate.
3. The sound generating device assembly of claim 2 , wherein the low-pitch sound generator comprises a first magnet, a first coil and a first diaphragm, the first magnet is disposed in the first accommodation groove and is fixed on the reinforcement plate, the first diaphragm is disposed on the housing at an opposite side of an opening of the first accommodation groove, a first magnetic gap is provided between the first magnet and a wall of the first accommodation groove, the first coil is connected with the first diaphragm, and the first coil is located in the first magnetic gap.
4. The sound generating device assembly of claim 3 , wherein the high-pitch sound generator comprises a second magnet, a second coil and a second diaphragm, the second magnet is disposed in the second accommodation groove and is fixed on the reinforcement plate, the second diaphragm is disposed on the hosing at an opposite side of an opening of the second accommodation groove, a second magnetic gap is provided between the second magnet and a wall of the second accommodation groove, the second coil is connected with the second diaphragm, and the second coil is located in the second magnetic gap.
5. The sound generating device assembly of claim 4 , wherein a first sound output hole is provided at a position of the housing corresponding to the opening of the first accommodation groove, and the first diaphragm covers on the first sound output hole; and
a second sound output hole is provided at a position of the housing corresponding to the opening of the second accommodation groove, and the second diaphragm covers on the second sound output hole.
6. The sound generating device assembly of claim 5 , wherein an area of the first sound output hole is larger than an area of the second sound output hole.
7. The sound generating device assembly of claim 5 , wherein edges of the first diaphragm and edges of the second diaphragm are fixed on the housing;
a portion of the first diaphragm close to an edge of the first sound output hole is recessed towards inside of the cavity to form a first rim; and
a portion of the second diaphragm close to an edge of the second sound output hole is recessed towards inside of the cavity to form a second rim.
8. The sound generating device assembly of claim 5 , wherein a first stiffening plate and a second stiffening plate are respectively fixed on the first diaphragm and the second diaphragm.
9. The sound generating device assembly of claim 4 , wherein a first washer is disposed on a side of the first magnet facing the first diaphragm; and
a second washer is disposed on a side of the second magnet facing the second diaphragm.
10. The sound generating device assembly of claim 1 , wherein the frame and the housing form a first rear sound cavity and a second rear sound cavity isolated from each other in the cavity, the first rear sound cavity is communicated with the low-pitch sound generator, and the second rear sound cavity is communicated with the high-pitch sound generator.