Loudspeaker module

Abstract

The utility model discloses a loudspeaker module group, comprising a pedestal which is provided with a clamping block; the cover plate is arranged on the base in a covering manner, and a clamping hole matched with the clamping block is formed in the cover plate; the steel sheet is arranged on the base in an injection molding manner, the steel sheet comprises a first electric contact part and a second electric contact part, and the first electric contact part and the second electric contact part are exposed out of the surface, close to one side of the cover plate, of the base; the loudspeaker single body is arranged between the base and the cover plate, a first electrode is arranged on the side, close to the base, of the loudspeaker single body, and the first electrode abuts against the first electric contact part; the main control board is arranged between the base and the cover plate, a second electrode is arranged on the side, close to the base, of the main control board, and the second electrode abuts against the second electric contact part. According to the loudspeaker module, a flexible circuit board does not need to be arranged, the sealing performance of the cavity of the loudspeaker module can be guaranteed, and the problem that the loudspeaker module is poor due to welding failure of the flexible circuit board can be solved.

Description

Technical Field

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

[0002] As electronic products are constantly updated, the performance requirements of electronic products are getting higher and higher, and the size of electronic products tends to be miniaturized and thinner. Semi-cavity module speakers have the advantage of low cost and are widely used in electronic products. Existing semi-cavity module speakers use flexible circuit boards to achieve electrical connection with the main control board of electronic products. The flexible circuit boards may fail during the welding process, thus affecting the yield rate of the current semi-cavity module speakers, and the layout of the flexible circuit boards will affect the sealing of the cavity of the semi-cavity module speakers. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a speaker module to solve the problems of low yield rate and influence on the sealing performance of the cavity of the existing half-cavity module speakers.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a speaker module, comprising:

[0005] A base, wherein a card block is provided on the base;

[0006] A cover plate, the cover plate is arranged on the base, and the cover plate is provided with a card hole matching the card block;

[0007] A steel sheet, the steel sheet is injection molded on the base, the steel sheet comprises a first electric contact portion and a second electric contact portion, the first electric contact portion and the second electric contact portion are both exposed on a surface of the base close to the cover plate;

[0008] A speaker unit, wherein the speaker unit is disposed between the base and the cover plate, and a first electrode is disposed on a side of the speaker unit close to the base, and the first electrode abuts against the first electrical contact portion;

[0009] A main control board is arranged between the base and the cover plate, a second electrode is arranged on a side of the main control board close to the base, and the second electrode abuts against the second electrical contact portion.

[0010] Furthermore, the steel sheet also includes a connecting portion, one end of which is connected to the first electric contact portion, the connecting portion is injection-molded in the base, and the other end of the connecting portion is connected to the second electric contact portion.

[0011] Furthermore, a first bump is provided on the base corresponding to the first electrode, and the first electrical contact portion is provided on the first bump.

[0012] Furthermore, a single body groove and a limiting groove are provided on the base, the speaker single body is arranged in the single body groove, and the main control board is arranged in the limiting groove.

[0013] Furthermore, the cover plate includes a first cover body and a second cover body, the first cover body is disposed on the single groove, and the second cover body is disposed on the limiting groove.

[0014] Furthermore, the edge of the first cover body extends outward to form a fixing portion, the fixing portion is provided with the clamping hole, the inner wall of the clamping hole is provided with a first protrusion, and the end of the clamping block is provided with a second protrusion that is clamped and matched with the first protrusion.

[0015] Furthermore, the card block is provided with a third protrusion which is engaged with the main control board.

[0016] Furthermore, the first electrode includes a first elastic sheet, the first elastic sheet abuts against the first electrical contact portion, and the second electrode includes a second elastic sheet, the second elastic sheet abuts against the second electrical contact portion.

[0017] Furthermore, a second protrusion is provided on the base, and a foam matching the shape of the second protrusion is provided on a side of the speaker unit close to the base.

[0018] Furthermore, the base is provided with a first through hole and a second through hole corresponding to the first electrical contact portion and the second electrical contact portion respectively.

[0019] The beneficial effects of the present invention are as follows: the speaker module provided by the present invention has a steel sheet injection molded on the base, and the first electric contact part and the second electric contact part of the steel sheet are exposed on the surface of the base close to the cover plate side, and the speaker unit of the speaker module and the main control board are electrically connected through the steel sheet, and the speaker module does not need to be provided with a flexible circuit board, which can not only ensure the sealing of the cavity of the speaker module, but also solve the problem of poor speaker module due to welding failure of the flexible circuit board; in addition, the base and the cover plate are clamped by a clamping block and a clamping hole, which can effectively ensure the reliability and stability of the steel sheet abutting against the first electrode and the second electrode respectively, thereby ensuring the reliability and stability of the electrical connection between the speaker unit and the main control board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural explosion diagram of the speaker module of the utility model in one embodiment;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the middle steel sheet;

[0022] Figure 3 for Figure 1A schematic diagram of the structure of the middle base at one viewing angle;

[0023] Figure 4 for Figure 1 The structural diagram of the middle base from another perspective;

[0024] Figure 5 for Figure 1 A cross-sectional view of the middle speaker module;

[0025] Figure 6 for Figure 5 Enlarged view of part A;

[0026] Figure 7 for Figure 1 Schematic diagram of the structure of the middle cover;

[0027] Figure 8 for Figure 1 A schematic diagram of the structure of the speaker unit;

[0028] Fig. 9 for Figure 1 Schematic diagram of the structure of the main control board.

[0029] Description of labels:

[0030] 1. base; 11. block; 111. second protrusion; 112. third protrusion; 12. first protrusion; 13. single groove; 14. limiting groove; 15. second protrusion; 16. first through hole; 17. second through hole;

[0031] 2. Cover plate; 21. First cover body; 211. Fixing portion; 212. Clamping hole; 213. First protrusion; 22. Second cover body;

[0032] 3. Steel sheet; 31. First electric contact portion; 32. Second electric contact portion; 33. Connecting portion;

[0033] 4. speaker unit; 41. first spring;

[0034] 5. Main control board; 51. Second spring;

[0035] 6. Foam. DETAILED DESCRIPTION

[0036] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0037] Please refer to Figures 1 to 9 , a speaker module, comprising:

[0038] A base 1, wherein a clamping block 11 is provided on the base 1;

[0039] A cover plate 2, the cover plate 2 is covered on the base 1, and a clamping hole 212 matching the clamping block 11 is provided on the cover plate 2;

[0040] A steel sheet 3, wherein the steel sheet 3 is injection molded on the base 1, and the steel sheet 3 comprises a first electric contact portion 31 and a second electric contact portion 32, wherein the first electric contact portion 31 and the second electric contact portion 32 are both exposed on a surface of the base 1 close to the cover plate 2;

[0041] A speaker unit 4, wherein the speaker unit 4 is disposed between the base 1 and the cover plate 2, and a first electrode is disposed on a side of the speaker unit 4 close to the base 1, and the first electrode abuts against the first electrical contact portion 31;

[0042] The main control board 5 is disposed between the base 1 and the cover 2 . A second electrode is disposed on a side of the main control board 5 close to the base 1 . The second electrode abuts against the second electrical contact portion 32 .

[0043] From the above description, it can be seen that the beneficial effects of the utility model are: the speaker module provided by the utility model has the steel sheet 3 injection molded on the base 1, and the first electric contact part and the second electric contact part of the steel sheet 3 are exposed on the surface of the base 1 close to the cover plate 2. The speaker unit 4 and the main control board 5 of the speaker module are electrically connected through the steel sheet 3. The speaker module does not need to be provided with a flexible circuit board, which can not only ensure the sealing of the cavity of the speaker module, but also solve the problem of poor speaker module due to welding failure of the flexible circuit board; in addition, the base 1 and the cover plate 2 are clamped by the clamping block 11 and the clamping hole 212, which can effectively ensure the reliability and stability of the steel sheet 3 abutting against the first electrode and the second electrode respectively, thereby ensuring the reliability and stability of the electrical connection between the speaker unit 4 and the main control board 5.

[0044] Furthermore, the steel sheet 3 further includes a connecting portion 33 , one end of the connecting portion 33 is connected to the first electric contact portion, the connecting portion 33 is injection molded in the base 1 , and the other end of the connecting portion 33 is connected to the second electric contact portion.

[0045] From the above description, it can be seen that the speaker module can set the length and shape of the connecting part 33 according to the relative position between the first electrode and the second electrode, and the connecting part 33 can be designed to be bent so that there is a distance difference between the first electric contact part and the second electric contact part to meet actual application requirements. Accordingly, the base 1 can be provided with a protruding structure corresponding to the bending design of the connecting part 33.

[0046] Furthermore, a first bump 12 is provided on the base 1 corresponding to the first electrode, and the first electrical contact portion is provided on the first bump 12 .

[0047] From the above description, it can be seen that since the thickness of the main control board 5 is smaller than the thickness of the speaker unit 4, the provision of the first protrusion 12 can raise the height of the lower surface of the speaker unit 4, thereby reducing the height difference between the first electric contact part and the second electric contact part, and reducing the processing difficulty of the steel sheet 3.

[0048] Furthermore, a single body groove 13 and a limiting groove 14 are provided on the base 1 , the speaker single body 4 is arranged in the single body groove 13 , and the main control board 5 is arranged in the limiting groove 14 .

[0049] Furthermore, the cover plate 2 includes a first cover body 21 and a second cover body 22 , wherein the first cover body 21 is disposed on the single groove 13 , and the second cover body 22 is disposed on the limiting groove 14 .

[0050] From the above description, it can be seen that the first cover body 21 and the single groove 13 can enclose a speaker cavity, and the second cover body 22 and the limiting groove 14 can enclose a main control board 5 cavity. Since there is no need to arrange a flexible circuit board spanning the speaker cavity and the main control board 5 cavity, the speaker cavity of the speaker module has good sealing performance.

[0051] Furthermore, the edge of the first cover body 21 extends outward to form a fixing portion 211, the fixing portion 211 is provided with the clamping hole 212, the inner wall of the clamping hole 212 is provided with a first protrusion 213, and the end of the clamping block 11 is provided with a second protrusion 111 that is clamped and matched with the first protrusion 213.

[0052] Furthermore, the clamping block 11 is provided with a third protrusion 112 which is clamped and matched with the main control board 5 .

[0053] From the above description, it can be seen that the base 1 and the cover 2 of the speaker module are clamped and fixed, and the clamping block 11 is also provided with a third protrusion 112 which is clamped with the main control circuit board, which can effectively ensure the stability and reliability of the cover 2 pressing the base 1 so that the steel sheet 3 on the base 1 can be respectively abutted against the speaker unit 4 and the main control board 5.

[0054] Furthermore, the first electrode includes a first elastic sheet 41 , and the first elastic sheet 41 abuts against the first electrical contact portion. The second electrode includes a second elastic sheet 51 , and the second elastic sheet 51 abuts against the second electrical contact portion.

[0055] It can be seen from the above description that the spring sheet can undergo elastic deformation when it abuts against the steel sheet 3 , and the elastic force generated by the spring sheet can improve the stability of its electrical contact with the steel sheet 3 .

[0056] Furthermore, a second protrusion 15 is provided on the base 1 , and a foam 6 matching the shape of the second protrusion 15 is provided on a side of the speaker unit 4 close to the base 1 .

[0057] It can be seen from the above description that the second protrusion 15 can support the lower surface of the speaker unit 4 , and the foam 6 can produce elastic deformation to improve the impact resistance of the speaker unit 4 .

[0058] Furthermore, the base 1 is provided with a first through hole 16 and a second through hole 17 corresponding to the first electrical contact portion and the second electrical contact portion respectively.

[0059] It can be seen from the above description that the operator can use an electrical probe to test the electrical performance of the speaker module through the first through hole 16 and the second through hole 17 .

[0060] Embodiment 1

[0061] Please refer to Figures 1 to 9 The first embodiment of the utility model is to provide a speaker module, which includes a base 1, a cover plate 2, a steel sheet 3, a speaker unit 4 and a main control board 5, wherein a card block 11 is arranged on the base 1, the cover plate 2 is covered on the base 1, and the speaker unit 4 and the main control board 5 are arranged between the cover plate 2 and the base 1;

[0062] Please refer to Figure 2 In this embodiment, a card hole 212 matching the card block 11 is provided on the cover plate 2, the steel sheet 3 is injection molded on the base 1, and the steel sheet 3 includes a first electric contact portion, a connecting portion 33 and a second electric contact portion connected in sequence, wherein the connecting portion 33 is injection molded on the base 1, and the first electric contact portion and the second electric contact portion are both exposed on the surface of the base 1 close to the cover plate 2; a first electrode is provided on the side of the speaker unit 4 close to the base 1, and the first electrode abuts against the first electric contact portion 31; a second electrode is provided on the side of the main control board 5 close to the base 1, and the second electrode abuts against the second electric contact portion 32.

[0063] Specifically, the cover 2 is fixed to the base 1 by bolts, and the cover 2 can exert pressure on the speaker unit 4 and the main control board 5 toward the base 1, so that the first electrode of the speaker unit 4 abuts against the first electrical contact, and the second electrode of the main control board 5 abuts against the second electrical contact.

[0064] Therefore, the speaker unit 4 of the speaker module is electrically connected to the main control board 5 through the steel sheet 3, and the speaker module does not need to be provided with a flexible circuit board, which can not only ensure the sealing of the cavity of the speaker module, but also solve the problem of poor speaker module performance due to welding failure of the flexible circuit board.

[0065] In detail, in this embodiment, Figure 8 and Fig. 9As shown, the first electrode includes a first spring sheet 41, which abuts against the first electrical contact portion, and the second electrode includes a second spring sheet 51, which abuts against the second electrical contact portion. The spring sheet can be elastically deformed when abutting against the steel sheet 3, and the elastic force generated by the spring sheet can improve the stability of its electrical contact with the steel sheet 3.

[0066] Please refer to Figure 3 In this embodiment, in order to match the first electrode on the speaker unit 4, a first protrusion 12 is provided on the base 1 corresponding to the first electrode, and the first electrical contact is provided on the first protrusion 12; in addition, a second protrusion 15 is provided on the base 1, and a foam 6 matching the shape of the second protrusion 15 is provided on the side of the speaker unit 4 close to the base 1. In this embodiment, the cover plate 2 and the base 1 are fixed by bolts, and the cover plate 2 can generate pressure on the speaker unit 4 so that the first electrode of the speaker unit 4 abuts against the first electrical contact provided on the first protrusion 12, the second protrusion 15 can concentrate stress on the speaker unit 4, and the foam 6 can prevent the speaker unit 4 from being damaged.

[0067] Please combine Figure 3 and Figure 7 For reference, in this embodiment, the base 1 is provided with a single groove 13 and a limiting groove 14, the speaker single unit 4 is provided in the single groove 13, the main control board 5 is provided in the limiting groove 14, and the cover plate 2 includes a first cover body 21 and a second cover body 22, the first cover body 21 is provided on the single groove 13, and the second cover body 22 is provided on the limiting groove 14. The first cover body 21 and the single groove 13 can enclose a speaker cavity, and the second cover body 22 and the limiting groove 14 can enclose a main control board 5 cavity. Since there is no need to arrange a flexible circuit board spanning between the speaker cavity and the main control board 5 cavity, the speaker cavity of the speaker module has good sealing performance.

[0068] For more details, please refer to Figure 6 The edge of the first cover 21 extends outward to form a fixing portion 211, the second cover 22 covers the fixing portion 211, the fixing portion 211 is provided with a clamping hole 212, the inner wall of the clamping hole 212 is provided with a first protrusion 213, and the end of the clamping block 11 is provided with a second protrusion 111 that is clamped and matched with the first protrusion 213. The clamping block 11 is provided with a third protrusion 112 that is clamped and matched with the main control board 5.

[0069] Please refer to Figure 4 The base 1 is provided with a first through hole 16 and a second through hole 17 corresponding to the first electrical contact portion and the second electrical contact portion, respectively, so that an operator can use an electrical probe to test the electrical performance of the speaker module through the first through hole 16 and the second through hole 17 .

[0070] To sum up, the speaker module provided by the utility model has a steel sheet 3 injection molded on the base 1, and the first electric contact part and the second electric contact part of the steel sheet 3 are exposed on the surface of the base 1 close to the cover plate 2. The speaker unit 4 and the main control board 5 of the speaker module are electrically connected through the steel sheet 3. The speaker module does not need to be provided with a flexible circuit board, which can not only ensure the sealing of the cavity of the speaker module, but also solve the problem of poor speaker module due to welding failure of the flexible circuit board; in addition, the base 1 and the cover plate 2 are clamped by the clamping block 11 and the clamping hole 212, which can effectively ensure the reliability and stability of the steel sheet 3 abutting against the first electrode and the second electrode respectively, thereby ensuring the reliability and stability of the electrical connection between the speaker unit 4 and the main control board 5.

[0071] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A speaker module, characterized in that: include: A base, wherein a card block is provided on the base; A cover plate, the cover plate is arranged on the base, and the cover plate is provided with a card hole matching the card block; A steel sheet, the steel sheet is injection molded on the base, the steel sheet comprises a first electric contact portion and a second electric contact portion, the first electric contact portion and the second electric contact portion are both exposed on a surface of the base close to the cover plate; A speaker unit, wherein the speaker unit is disposed between the base and the cover plate, and a first electrode is disposed on a side of the speaker unit close to the base, and the first electrode abuts against the first electrical contact portion; A main control board is arranged between the base and the cover plate, a second electrode is arranged on a side of the main control board close to the base, and the second electrode abuts against the second electrical contact portion.

2. The speaker module according to claim 1, characterized in that: The steel sheet further includes a connecting portion, one end of which is connected to the first electric contact portion, the connecting portion is injection-molded in the base, and the other end of the connecting portion is connected to the second electric contact portion.

3. The speaker module according to claim 1, characterized in that: A first bump is disposed on the base corresponding to the first electrode, and the first electrical contact portion is disposed on the first bump.

4. The speaker module according to claim 1, characterized in that: The base is provided with a single body groove and a limiting groove, the speaker single body is arranged in the single body groove, and the main control board is arranged in the limiting groove.

5. The speaker module according to claim 4, characterized in that: The cover plate includes a first cover body and a second cover body, wherein the first cover body is disposed on the single groove, and the second cover body is disposed on the limiting groove.

6. The speaker module according to claim 5, characterized in that: The edge of the first cover body extends outward to form a fixing portion, the fixing portion is provided with the clamping hole, the inner wall of the clamping hole is provided with a first protrusion, and the end of the clamping block is provided with a second protrusion that is clamped and matched with the first protrusion.

7. The speaker module according to claim 1, characterized in that: The clamping block is provided with a third protrusion which is clamped and matched with the main control board.

8. The speaker module according to claim 1, characterized in that: The first electrode includes a first elastic sheet, and the first elastic sheet abuts against the first electrical contact portion. The second electrode includes a second elastic sheet, and the second elastic sheet abuts against the second electrical contact portion.

9. The speaker module according to claim 1, characterized in that: The base is provided with a second convex block, and a side of the speaker unit close to the base is provided with foam matching the shape of the second convex block.

10. The speaker module according to claim 1, characterized in that: The base is respectively provided with a first through hole and a second through hole corresponding to the first electrical contact portion and the second electrical contact portion.

Images