Loudspeaker module

Abstract

The utility model provides a loudspeaker module, which belongs to the technical field of loudspeakers and is characterized in that a front shell comprises a bottom plate and a side plate arranged along the edge of the bottom plate, a main cavity is defined by the bottom plate and the side plate, a rear cover and the side plate are arranged in a sealing manner, and filling particles are filled in the main cavity; a loudspeaker single body is further arranged in the main cavity and comprises a basin stand, a vibrating diaphragm, a magnetic cover and a damping net, the vibrating diaphragm is arranged at one end of the basin stand, the magnetic cover is arranged at the other end of the basin stand, and the damping net is arranged on the basin stand; the bottom plate is provided with a sound outlet hole and a mounting bracket, the vibrating diaphragm covers the sound outlet hole, and the mounting bracket is arranged between the basin stand and the bottom plate; the loudspeaker single body is assembled with the basin frame through the magnetic cover, the damping net is arranged on the basin frame, at the moment, the loudspeaker single body does not need to be sealed by an additional sealing device, the filling particles do not enter the loudspeaker single body, the loudspeaker single body does not need an additional protection device, the volume in the main cavity is further increased, and the filling volume of the filling particles is increased. And the acoustic performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker module. Background Art

[0002] With the development of technology, the requirements for speaker cabinets of existing speakers are getting higher and higher. Under the same volume, the larger the cavity filled with particles, the better the acoustic performance of the speaker. In order to increase the volume of the cavity filled with particles while keeping the volume unchanged and meet the requirements of acoustic indicators, it is a difficult problem that needs to be solved urgently in the field of acoustics.

[0003] Therefore, there is an urgent need for a speaker module that can increase the volume of particles filled inside the speaker while keeping the overall volume unchanged. Utility Model Content

[0004] In view of this, the utility model seals the speaker unit without adding any additional sealing device, thereby increasing the volume of the main cavity of the speaker module.

[0005] The technical solution of the utility model is implemented as follows: A speaker module, including a front shell and a rear cover, the front shell including a bottom plate and side plates arranged along the edge of the bottom plate, the bottom plate and the side plates surround a main cavity, the rear cover and the side plates are sealed, and the main cavity is filled with filling particles; a speaker unit is also arranged in the main cavity, the speaker unit includes a basin, a diaphragm, a magnetic cover and a damping net, the diaphragm is arranged at one end of the basin, the magnetic cover is arranged at the other end of the basin, and the damping net is arranged on the basin; a sound hole and a mounting bracket are arranged on the bottom plate, the diaphragm covers the sound hole, and the mounting bracket is arranged between the basin and the bottom plate.

[0006] On the basis of the above technical solution, preferably, the magnetic cover includes a magnetic cover body and a magnetic cover mounting edge, the magnetic cover mounting edge is arranged around the magnetic cover body, the thickness of the magnetic cover mounting edge is less than the thickness of the magnetic cover body, the magnetic cover body and the magnetic cover mounting edge are parallel to each other on one side facing the basin frame, and the magnetic cover mounting edge extends into the basin frame.

[0007] On the basis of the above technical solution, preferably, the speaker unit also includes a magnetic circuit, a voice coil, a pole piece, a circuit board and a secondary membrane. The pole piece is arranged close to the magnetic circuit, the voice coil and the magnetic circuit are arranged in coordination, the circuit board and the secondary membrane are arranged at the end of the voice coil, and the circuit board is electrically connected to the voice coil.

[0008] On the basis of the above technical solution, preferably, the circuit board and the auxiliary membrane each include two, wherein one circuit board and one auxiliary membrane are arranged at one end of the voice coil, and the other circuit board and auxiliary membrane are arranged at the other end of the voice coil.

[0009] On the basis of the above technical solution, preferably, a through hole is provided on a side of the basin frame opposite to the circuit board, and the damping net is provided on the through hole.

[0010] On the basis of the above technical solution, preferably, the back cover is provided with a mounting groove, a mounting piece is buckled in the mounting groove, and a filling hole penetrating the back cover is provided in the mounting groove.

[0011] On the basis of the above technical solution, preferably, the mounting bracket is arranged around the sound outlet hole, and a fixed edge is arranged between the mounting bracket and the sound outlet hole.

[0012] On the basis of the above technical solution, preferably, the basin frame is arranged on a fixed edge, and a seal is arranged between the mounting bracket and the basin frame.

[0013] On the basis of the above technical solution, preferably, the mounting bracket is arranged around the damping net or the mounting bracket is arranged on one side of the damping net.

[0014] On the basis of the above technical solution, preferably, the diaphragm includes a diaphragm and a dome, and the dome is arranged on the diaphragm.

[0015] The speaker module of the utility model has the following beneficial effects compared with the prior art:

[0016] The speaker unit is assembled with the basin frame through the magnetic cover, and a damping net is set on the basin frame. At this time, the speaker unit does not need an additional sealing device to seal it, and the filling particles will not enter the speaker unit. The speaker unit does not need an additional protective device. The volume in the main cavity is further increased, and the filling volume of the filling particles is increased, which improves the acoustic performance. The filling particles use the commonly used Bass powder;

[0017] At this time, the speaker unit is installed in the front shell, and the process of sealing with the back cover is simpler and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is an exploded view of a speaker module of the utility model;

[0020] Figure 2 This is a cross-sectional view of a loudspeaker module of the utility model;

[0021] Figure 3 It is a stereoscopic diagram of the loudspeaker unit of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-3 As shown, a speaker module includes a front shell 1 and a rear cover 2, the front shell 1 includes a bottom plate 11 and a side plate 12 arranged along the edge of the bottom plate 11, the bottom plate 11 and the side plate 12 surround a main cavity 13, the rear cover 2 and the side plate 12 are sealed, and the main cavity 13 is filled with filling particles 3; a speaker unit 4 is also arranged in the main cavity 13, and the speaker unit 4 includes a basin 41, a diaphragm 42, a magnetic cover 43 and a damping net 44, the diaphragm 42 is arranged at one end of the basin 41, the magnetic cover 43 is arranged at the other end of the basin 41, and the damping net 44 is arranged on the basin 41; a sound outlet hole 14 and a mounting bracket 15 are arranged on the bottom plate 11, the diaphragm 42 covers the sound outlet hole 14, and the mounting bracket 15 is arranged between the basin 41 and the bottom plate 11. The speaker unit is assembled with the basin frame 41 through the magnetic cover 43, and a damping net 44 is arranged on the basin frame. At this time, the speaker unit 4 does not need an additional sealing device to seal it, and the filling particles 3 will not enter the speaker unit 4. The speaker unit 4 does not need an additional protective device. The volume in the main cavity 13 is further increased, and the filling volume of the filling particles 3 is increased, thereby improving the acoustic performance. The filling particles 3 utilize the conventional Bass powder. At this time, the speaker unit 4 is installed in the front shell 1, and the process of sealing with the back cover 2 is simpler and reduces the cost.

[0024] The magnetic cover 43 includes a magnetic cover body 431 and a magnetic cover mounting edge 432. The magnetic cover mounting edge 432 is arranged around the magnetic cover body 431. The thickness of the magnetic cover mounting edge 432 is less than the thickness of the magnetic cover body 431. The magnetic cover body 431 and the magnetic cover mounting edge 432 are parallel to each other on one side facing the basin frame 41. The magnetic cover mounting edge 432 is less thick than the magnetic cover body 431. The magnetic cover mounting edge 432 is arranged in the basin frame 41. At this time, the magnetic cover 43 and the basin frame 41 are more firmly installed, and the sealing effect is better, so as to prevent the filling particles 3 from leaking.

[0025] The speaker unit 4 further includes a magnetic circuit 49, a voice coil 45, a pole piece 46, a circuit board 47 and a secondary membrane 48. The pole piece 46 is arranged close to the magnetic circuit 49. The voice coil 45 is arranged in cooperation with the magnetic circuit 49. The circuit board 47 and the secondary membrane 48 are arranged at the end of the voice coil 45. The circuit board 47 and the secondary membrane 48 are electrically connected to the voice coil 45. The circuit board 47 and the secondary membrane 48 each include two, one of which is arranged at one end of the voice coil 45 and the other is arranged at the other end of the voice coil 45.

[0026] The basin frame 41 is provided with a through hole 411 on one side opposite to the circuit board 47, and the damping net 44 is provided on the through hole 411. The through hole 411 is used to adjust the air pressure in the speaker unit 4, and the damping net 44 is provided on the through hole 411 by bonding or the like to prevent the filling particles 3 from entering the speaker unit 4, and the mesh of the damping net 44 is larger than the particle size of the filling particles 3.

[0027] The rear cover 2 is provided with a mounting groove 21, a mounting sheet 22 is buckled in the mounting groove 21, and a filling hole 23 is provided in the mounting groove 21 that penetrates the rear cover 2. The filling hole 23 penetrates the rear cover 2, and filling particles 3 can be added into the main cavity 13 through the filling hole 23 to avoid reducing the filling particles 3 in the main cavity 13 and affecting the acoustic performance.

[0028] The mounting bracket 15 is arranged around the sound outlet 14, and a fixed edge 16 is arranged between the mounting bracket 15 and the sound outlet 14. The basin frame 41 is arranged on the fixed edge 16, and the mounting bracket 15 and the basin frame 41 are sealed. The basin frame 41 is arranged on the fixed edge 16 to prevent the speaker unit 4 from shaking during use, and the mounting bracket 15 and the basin frame 41 are sealed to prevent the filling particles 3 from leaking.

[0029] The mounting bracket 15 is arranged around the damping net 44 or on one side of the damping net 44. The mounting bracket 15 can be arranged around the damping net 44 or on one side of the damping net 44, but the mounting bracket 15 cannot cover or block the damping net 44 to affect the acoustic performance of the speaker unit 4.

[0030] The diaphragm 42 includes a diaphragm 421 and a dome 422, and the dome 422 is disposed on the diaphragm 421. The dome 422 is bonded to the diaphragm 421 by bonding, and the dome 422 is disposed at the center of the diaphragm 421. At this time, the diaphragm 42 is in a balanced state, and the forces are balanced at all locations, and the acoustic performance is more reliable.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A speaker module, characterized in that: The invention comprises a front shell (1) and a rear cover (2), wherein the front shell (1) comprises a bottom plate (11) and a side plate (12) arranged along the edge of the bottom plate (11), the bottom plate (11) and the side plate (12) are surrounded by a main cavity (13), the rear cover (2) and the side plate (12) are sealed, and the main cavity (13) is filled with filling particles (3); A loudspeaker unit (4) is also arranged in the main cavity (13), and the loudspeaker unit (4) comprises a basin frame (41), a diaphragm (42), a magnetic cover (43) and a damping net (44), wherein the diaphragm (42) is arranged at one end of the basin frame (41), the magnetic cover (43) is arranged at the other end of the basin frame (41), and the damping net (44) is arranged on the basin frame (41); a sound outlet hole (14) and a mounting bracket (15) are arranged on the bottom plate (11), the diaphragm (42) covers the sound outlet hole (14), and the mounting bracket (15) is arranged between the basin frame (41) and the bottom plate (11).

2. A speaker module according to claim 1, characterized in that: The magnetic cover (43) comprises a magnetic cover body (431) and a magnetic cover mounting edge (432); the magnetic cover mounting edge (432) is arranged around the magnetic cover body (431); the thickness of the magnetic cover mounting edge (432) is less than the thickness of the magnetic cover body (431); the magnetic cover body (431) and the magnetic cover mounting edge (432) are parallel to each other on a side facing the basin frame (41); and the magnetic cover mounting edge (432) extends into the basin frame (41).

3. A speaker module according to claim 1, characterized in that: The loudspeaker unit (4) further comprises a magnetic circuit (49), a voice coil (45), a pole piece (46), a circuit board (47) and a secondary membrane (48); the pole piece (46) is arranged in close contact with the magnetic circuit (49); the voice coil (45) and the magnetic circuit (49) are arranged in coordination; the circuit board (47) and the secondary membrane (48) are arranged at the end of the voice coil (45); and the circuit board (47) and the voice coil (45) are electrically connected.

4. A speaker module as claimed in claim 3, characterized in that: The circuit board (47) and the auxiliary membrane (48) each include two, wherein one circuit board (47) and one auxiliary membrane (48) are arranged at one end of the voice coil (45), and the other circuit board (47) and the auxiliary membrane (48) are arranged at the other end of the voice coil (45).

5. A speaker module as claimed in claim 4, characterized in that: A through hole (411) is provided on one side of the basin frame (41) opposite to the circuit board (47), and the damping net (44) is provided on the through hole (411).

6. A speaker module according to claim 1, characterized in that: The rear cover (2) is provided with a mounting groove (21), a mounting piece (22) is buckled in the mounting groove (21), and a filling hole (23) penetrating the rear cover (2) is provided in the mounting groove (21).

7. A speaker module according to claim 1, characterized in that: The mounting bracket (15) is arranged around the sound outlet hole (14), and a fixing edge (16) is arranged between the mounting bracket (15) and the sound outlet hole (14).

8. A speaker module according to claim 7, characterized in that: The basin frame (41) is arranged on the fixed edge (16), and a seal is arranged between the mounting bracket (15) and the basin frame (41).

9. A speaker module according to claim 8, characterized in that: The mounting bracket (15) is arranged around the damping net (44) or the mounting bracket (15) is arranged on one side of the damping net (44).

10. A speaker module according to claim 1, characterized in that: The diaphragm (42) comprises a diaphragm (421) and a dome (422), wherein the dome (422) is arranged on the diaphragm (421).

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