Half-cavity loudspeaker module

Abstract

The utility model discloses a half-cavity loudspeaker module, which comprises a module shell, a loudspeaker monomer, sound absorption particles, a breathable separator and a sealing spacer, and is characterized in that the module shell is provided with an opening, a mounting position, a sound outlet hole and a filling cavity; the loudspeaker single body is installed at the installation position, the loudspeaker single body divides the internal space of the module shell into a front cavity and a rear cavity, the front cavity is communicated with the sound outlet hole, and the rear cavity is communicated with the filling cavity; the sound-absorbing particles are filled in the filling cavity; the breathable separator is arranged at the communication position of the filling cavity and the rear cavity to prevent the sound-absorbing particles from escaping out of the filling cavity; the sealing spacer is detachably installed on the module shell and seals the opening. The half-cavity loudspeaker module is novel in structure, the half-cavity loudspeaker module is filled with the sound-absorbing particles, the virtual rear cavity is enlarged, the acoustic performance is improved, and the sealing spacer can play a role in isolating the outside atmosphere and the filling cavity, so that the sound-absorbing particles are prevented from being infected by water vapor in the transportation and storage process, and the stability of the performance of the half-cavity loudspeaker module is guaranteed; and the loudspeaker monomer is convenient to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a semi-cavity loudspeaker module. Background Art

[0002] The speaker module includes a module shell and a speaker unit arranged in the module shell. The speaker module is divided into half-cavity and full-cavity. The module back cavity in the full-cavity speaker module is a closed structure, so its module back cavity can be filled with sound-absorbing particles to increase the virtual back cavity of the speaker module and improve the performance of the speaker module; while the module back cavity in the half-cavity speaker module is open, and it is impossible to design a structure for filling sound-absorbing particles. Because during the transportation / storage of the half-cavity speaker module, the sound-absorbing particles are exposed to the air for a long time and will combine with water molecules in the air, resulting in poor sound absorption effect, smaller virtual back cavity, unstable performance, increased F0 and other problems. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a half-cavity loudspeaker module filled with sound-absorbing particles and having stable performance.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a semi-cavity speaker module, comprising:

[0005] A module housing, the module housing having an opening, a mounting position, a sound outlet hole and a filling cavity;

[0006] A speaker unit, the speaker unit being installed at the installation position, the speaker unit dividing the internal space of the module housing into a front cavity and a rear cavity, the front cavity being connected to the sound outlet, and the rear cavity being connected to the filling cavity;

[0007] Sound-absorbing particles, the sound-absorbing particles are filled in the filling cavity;

[0008] a breathable spacer, the breathable spacer being provided at the connection between the filling cavity and the rear cavity to prevent the sound-absorbing particles from escaping from the filling cavity;

[0009] A sealing septum is detachably mounted on the module housing and seals the opening.

[0010] In one embodiment, the sealing spacer and the module housing are sealed using static electricity.

[0011] In one embodiment, the sealing spacer is sealed to the module housing via a sealing adhesive layer.

[0012] In one embodiment, the adhesive force between the sealant layer and the sealing spacer is greater than or less than the adhesive force between the sealant layer and the module housing.

[0013] In one embodiment, a ring frame structure is provided on the module housing, the ring frame structure is connected to the module housing to form the filling cavity, and the ring frame structure is arranged side by side with the installation position.

[0014] In one embodiment, the sealing spacer is made of a transparent material.

[0015] In one embodiment, the breathable isolation element is a metal mesh or mesh cloth.

[0016] In one embodiment, the sealing spacer has a protruding portion protruding relative to the outer peripheral wall of the module housing, and the protruding portion is an operating handle.

[0017] In one embodiment, a reinforcement sheet is provided on the protruding portion.

[0018] In one embodiment, the module housing is provided with a filling port communicating with the filling cavity, and a sealing mesh is provided at the filling port.

[0019] The beneficial effects of the present invention are as follows: the semi-cavity speaker module has a novel structure and is filled with sound-absorbing particles, which can increase the virtual back cavity of the semi-cavity speaker module and improve the acoustic performance of the semi-cavity speaker module. The sealing spacer can isolate the outside atmosphere from the filling cavity, thereby preventing the sound-absorbing particles from being contaminated by water vapor during transportation and storage of the semi-cavity speaker module, which helps to ensure the stability of the performance of the semi-cavity speaker module. When the speaker unit needs to be maintained or replaced, the staff can remove the sealing spacer to perform the operation. Due to the obstruction of the breathable isolation component, the sound-absorbing particles will not affect the maintenance and replacement of the speaker unit. It can be seen that the present semi-cavity speaker module also has the advantage of convenient maintenance and replacement of the speaker unit.

[0020] When the half-cavity speaker module needs to be tested for performance, the staff can remove the sealing spacer to carry out the operation. After the test is completed, the sealing spacer can be reconnected to the module housing without affecting the transportation and storage of the half-cavity speaker module; when the half-cavity speaker module needs to be assembled into an electronic device, the staff can remove the sealing spacer to carry out the operation, which is very convenient; when the sound-absorbing particles are accidentally damp, the sealing spacer can be removed to bake the sound-absorbing particles, allowing the water molecules to evaporate and leave the sound-absorbing particles, thereby restoring the performance, and then the sealing spacer can be reconnected to the module housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of a half-cavity speaker module according to the first embodiment of the present invention;

[0023] Figure 2 This is an exploded view of the half-cavity speaker module of the first embodiment of the present invention;

[0024] Figure 3 This is a partial cross-sectional view of the half-cavity speaker module according to the first embodiment of the present invention.

[0025] Description of Figure Numbers:

[0026] 1. Module housing; 11. Opening; 12. Sound outlet; 13. Rear cavity; 14. Filling cavity; 15. Ring frame structure; 16. Ventilation gap;

[0027] 2. Speaker unit;

[0028] 3. Sound-absorbing particles;

[0029] 4. Breathable isolation parts;

[0030] 5. Sealing spacer; 51. Protrusion;

[0031] 6. Sealant layer;

[0032] 7. Reinforcement sheet;

[0033] 8. Sealing mesh. DETAILED DESCRIPTION

[0034] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0038] In addition, if the word "and / or" appears throughout the text, it means that three parallel solutions are included. For example, "and / or" includes solutions, or solutions, or solutions that meet all of the requirements simultaneously. In addition, the technical solutions of various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is mutually contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0039] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0040] Example 1

[0041] Please refer to Figures 1 to 3The first embodiment of the present invention is: a semi-cavity speaker module, comprising a module housing 1, a speaker unit 2, sound-absorbing particles 3, a breathable spacer 4 and a sealing spacer 5, wherein the module housing 1 has an opening 11, a mounting position, a sound outlet 12 and a filling cavity 14; the speaker unit 2 is mounted at the mounting position, and the speaker unit 2 divides the internal space of the module housing 1 into a front cavity and a rear cavity 13, wherein the front cavity is connected to the sound outlet 12, and the rear cavity 13 is connected to the filling cavity 14 and the opening. 11; the sound-absorbing particles 3 are filled in the filling cavity 14; the breathable isolation member 4 is provided at the connection point between the filling cavity 14 and the rear cavity 13 to prevent the sound-absorbing particles 3 from escaping from the filling cavity 14; the sealing spacer 5 is detachably mounted on the module housing 1 and closes the opening 11. When the sealing spacer 5 is removed, the sound-absorbing particles 3 will not separate from the rear cavity 13 and escape from the half-cavity speaker module due to the obstruction of the breathable isolation member 4, thereby facilitating the testing and assembly of the half-cavity speaker module.

[0042] In actual products, the filling cavity 14 can be a partial area demarcated from the rear cavity 13, or it can be independent of the rear cavity 13, and can be specifically set according to actual needs. In this embodiment, a ring frame structure 15 is provided on the module housing 1, and the ring frame structure 15 is connected to the module housing 1 to form the filling cavity 14. The ring frame structure 15 is arranged side by side with the mounting position, that is, the filling cavity 14 is a partial area demarcated from the rear cavity 13. In detail, the breathable isolation member 4 is fixedly connected to the ring frame structure 15. The connection between the rear cavity 13 and the filling cavity 14 is close to the sealing spacer 5 and a certain breathable gap 16 is retained between the sealing spacer 5. The existence of the breathable gap 16 can ensure the stability of the connection between the rear cavity 13 and the filling cavity 14.

[0043] For ease of production, the ring frame structure 15 is preferably an integral structure formed by integral injection molding with the module housing 1. In this embodiment, a certain gap is maintained between the ring frame structure 15 and the peripheral wall of the module housing 1, i.e., the two are not arranged in contact. However, in an actual product, a portion of the ring frame structure 15 may also be formed by a portion of the peripheral wall of the module housing 1. This can reduce the material used in manufacturing the module housing 1, thereby saving the cost of manufacturing raw materials for the module housing 1.

[0044] In one embodiment, the sealing spacer 5 and the module housing 1 are sealed by static electricity; in this embodiment, the sealing spacer 5 and the module housing 1 are sealed by a sealing adhesive layer 6, and the bonding force between the sealing adhesive layer 6 and the sealing spacer 5 can be greater than the bonding force between the sealing adhesive layer 6 and the module housing 1, or less than the bonding force between the sealing adhesive layer 6 and the module housing 1, and is specifically set according to actual needs. When the bonding force between the sealing adhesive layer 6 and the sealing spacer 5 is greater than the bonding force between the sealing adhesive layer 6 and the module housing 1, when the sealing spacer 5 is removed, the sealing adhesive layer 6 can be removed at the same time, thereby ensuring that the sealing adhesive layer 6 will not remain on the module housing 1, affecting the original assembly method between the semi-cavity speaker module and the external electronic device. When the bonding force between the sealant layer 6 and the sealing spacer 5 is less than the bonding force between the sealant layer 6 and the module housing 1, the sealant layer 6 can become a sealed connection structure between the semi-cavity speaker module and the external electronic device, so that the sealant layer 6 can be reused, which helps to reduce resource waste.

[0045] In order to facilitate observation of the rear cavity 13 of the half-cavity speaker module, the sealing spacer 5 is preferably made of a transparent material, and the transparent material includes but is not limited to PET and the like.

[0046] In this embodiment, the breathable isolation member 4 is a mesh. In other embodiments, the breathable isolation member 4 may also be a metal mesh or other structural members.

[0047] To facilitate removal of the sealing spacer 5, the sealing spacer 5 preferably has a protrusion 51 protruding from the outer wall of the module housing 1. The protrusion 51 serves as an operating handle, allowing a worker to apply force to the sealing spacer 5 to remove it. Furthermore, the protrusion 51 is preferably provided with a reinforcement sheet 7. The reinforcement sheet 7 serves to strengthen the structural strength of the operating handle, reduce its damage risk, and improve the operating feel. In an actual product, the reinforcement sheet 7 can be fixedly connected to the sealing spacer 5 via a sealant layer 6.

[0048] The module housing 1 is provided with a filling port connected to the filling cavity 14, and a sealing mesh 8 is provided at the filling port. It is easy to understand that the sealing mesh 8 is fixed to the module housing 1 after the sound-absorbing particles 3 are filled into the rear cavity 13 of the half-cavity speaker module.

[0049] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A half-cavity speaker module, characterized in that: include A module housing, wherein the module housing has an opening, a mounting position, a sound outlet hole and a filling cavity; A speaker unit, the speaker unit is installed at the installation position, the speaker unit divides the internal space of the module housing into a front cavity and a rear cavity, the front cavity is connected to the sound outlet hole, and the rear cavity is connected to the filling cavity; Sound-absorbing particles, the sound-absorbing particles are filled in the filling cavity; A breathable spacer, the breathable spacer is arranged at the connection between the filling cavity and the rear cavity to prevent the sound-absorbing particles from escaping from the filling cavity; A sealing spacer is detachably mounted on the module housing and closes the opening.

2. The semi-cavity speaker module according to claim 1, characterized in that: The sealing spacer and the module housing are sealed by static electricity.

3. The semi-cavity speaker module according to claim 1, characterized in that: The sealing spacer is sealed and connected to the module housing via a sealing adhesive layer.

4. The semi-cavity speaker module according to claim 3, characterized in that: The bonding force between the sealant layer and the sealing spacer is greater than or less than the bonding force between the sealant layer and the module housing.

5. The semi-cavity speaker module according to claim 1, characterized in that: The module housing is provided with a ring frame structure, the ring frame structure is connected with the module housing to form the filling cavity, and the ring frame structure and the mounting position are arranged side by side.

6. The semi-cavity speaker module according to claim 1, characterized in that: The sealing spacer is made of transparent material.

7. The semi-cavity speaker module according to claim 1, characterized in that: The air-permeable isolation piece is a metal mesh or mesh cloth.

8. The semi-cavity speaker module according to claim 1, characterized in that: The sealing spacer has a protruding portion protruding relative to the outer peripheral wall of the module housing, and the protruding portion is an operating handle.

9. The semi-cavity speaker module according to claim 8, characterized in that: A reinforcement sheet is provided on the protruding portion.

10. The semi-cavity speaker module according to claim 1, characterized in that: The module housing is provided with a filling port connected to the filling cavity, and a sealing mesh is arranged at the filling port.

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