Loudspeaker module

Abstract

The utility model discloses a loudspeaker module. The loudspeaker module comprises a cover plate; 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 both arranged on the lower surface of the cover plate; the cover plate is arranged at the top of the loudspeaker single body, a first electrode is arranged at the top of the loudspeaker single body, and the first electric contact part abuts against the first electrode; and the cover plate covers the top of the main control board, the top of the main control board is provided with a second electrode, and the second electric contact part abuts against the second electrode. The loudspeaker module provided by the utility model does not need to use a flexible circuit board, the loudspeaker monomer and the main control board are electrically conducted through the steel sheet, and the loudspeaker module is high in assembly efficiency and high in yield.

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 also tends to be miniaturized and thinner. Half-cavity module speakers have the advantage of low cost and are widely used in electronic products. Existing half-cavity module speakers use flexible circuit boards to electrically connect to the main control board of electronic products. The flexible circuit boards are arranged on the sealing plane of the half-cavity module speakers. During the production process, the flexible circuit boards need to be attached and welded. Therefore, the existing half-cavity module speakers may fail due to welding failure of the flexible circuit boards, which results in cumbersome production processes and high production costs for the existing half-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 complicated production process and high production cost 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] Cover plate;

[0006] A steel sheet, the steel sheet comprising a first electric contact portion and a second electric contact portion, wherein the first electric contact portion and the second electric contact portion are both disposed on a lower surface of the cover plate;

[0007] A speaker unit, wherein the cover plate is arranged on the top of the speaker unit, a first electrode is arranged on the top of the speaker unit, and the first electrical contact part abuts against the first electrode;

[0008] The main control board, the cover plate is arranged on the top of the main control board, the top of the main control board is provided with a second electrode, and the second electric contact part abuts against the second electrode.

[0009] Furthermore, the steel sheet also includes a connecting portion, one end of the connecting portion is connected to the first electric contact portion, and the other end of the connecting portion is connected to the second electric contact portion.

[0010] Furthermore, the connecting portion is integrally formed on the cover plate.

[0011] Furthermore, the cover plate 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.

[0012] Furthermore, it also includes a base, the cover plate is covered on the base, the speaker unit and the main control board are both arranged between the base and the cover plate, the base is provided with a first positioning block, and the cover plate is provided with a first positioning hole corresponding to the first positioning block.

[0013] Furthermore, the base is provided with a second positioning block, and the main control board is provided with a second positioning hole corresponding to the second positioning block.

[0014] Furthermore, a plurality of protrusions are provided on one side of the base close to the cover plate and arranged around the speaker unit, and a positioning groove is formed between the plurality of protrusions.

[0015] Furthermore, the base is provided with a bolt hole, and the cover plate is provided with a third through hole corresponding to the bolt hole, so that the cover plate and the base are fixed by bolts.

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

[0017] Furthermore, the second electrode includes a second pad and a second elastic sheet disposed on the second pad, and the second elastic sheet abuts against the second electrical contact portion.

[0018] The beneficial effect of the present invention is that the speaker module provided by the present invention sets a steel sheet on the cover plate. After the speaker module is assembled, the first electric contact part of the steel sheet contacts the first electrode of the speaker unit, and the second electric contact part of the steel sheet contacts the second electrode of the main control board. Therefore, the speaker unit and the main control board in the speaker module are electrically connected through the steel sheet. The speaker module does not need to use a flexible circuit board, so the speaker module will not fail due to welding failure of the flexible circuit board. Moreover, the speaker module only needs to position and place the speaker unit, the main control board and other electrical components on the cover plate and then crimp them to complete the assembly process without the need for welding operations. The speaker module has high assembly efficiency and high yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the speaker module of the utility model in one embodiment;

[0020] Figure 2 for Figure 1 Structural explosion diagram of the middle speaker module;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the middle cover;

[0022] Figure 4 for Figure 1 A cross-sectional view of the middle cover;

[0023] Figure 5 for Figure 4 Enlarged view of part A in the middle;

[0024] Figure 6 for Figure 1 Schematic diagram of the structure of the middle base;

[0025] Figure 7 for Figure 2 Schematic diagram of the structure of the speaker unit and the main control board.

[0026] Description of labels:

[0027] 1. Base; 11. First positioning block; 12. Second positioning block; 13. Bump; 14. Positioning groove; 15. Bolt hole

[0028] 2. Cover plate; 21. First through hole; 22. Second through hole; 23. First positioning hole; 24. Third through hole;

[0029] 3. Steel sheet; 31. First electric contact portion; 32. Second electric contact portion; 33. Connecting portion;

[0030] 4. speaker unit; 41. first electrode; 411. first solder pad; 412. first spring;

[0031] 5. Main control board; 51. Second electrode; 511. Second solder pad; 512. Second spring piece; 52. Second positioning hole. DETAILED DESCRIPTION

[0032] 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.

[0033] Please refer to Figures 1 to 7 , a speaker module, comprising:

[0034] Cover plate 2;

[0035] A steel sheet 3, wherein 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 disposed on the lower surface of the cover plate 2;

[0036] A speaker unit 4, wherein the cover plate 2 is disposed on the top of the speaker unit 4, a first electrode 41 is disposed on the top of the speaker unit 4, and the first electrical contact portion 31 abuts against the first electrode 41;

[0037] The main control board 5 , the cover plate 2 is covered on the top of the main control board 5 , a second electrode 51 is provided on the top of the main control board 5 , and the second electrical contact portion 32 abuts against the second electrode 51 .

[0038] From the above description, it can be seen that the beneficial effect of the utility model is that the speaker module provided by the utility model sets the steel sheet 3 on the cover plate 2. After the speaker module is assembled, the first electric contact part 31 of the steel sheet 3 conflicts with the first electrode 41 of the speaker unit 4, and the second electric contact part 32 of the steel sheet 3 conflicts with the second electrode 51 of the main control board 5. Therefore, the speaker unit 4 and the main control board 5 in the speaker module are electrically connected through the steel sheet 3. The speaker module does not need to use a flexible circuit board, so the speaker module will not fail due to welding failure of the flexible circuit board. In addition, the speaker module only needs to position and place the electrical components such as the speaker unit 4 and the main control board 5 on the cover plate 2 and then crimp them to complete the assembly process without the need for welding operations. The speaker module has high assembly efficiency and high yield rate.

[0039] 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 31 , and the other end of the connecting portion 33 is connected to the second electric contact portion 32 .

[0040] Furthermore, the connecting portion 33 is integrally formed on the cover plate 2 .

[0041] From the above description, it can be seen that the shape of the connecting portion 33 is set according to the positions of the main control board 5 and the speaker unit 4, and the connecting portion 33 is integrally formed on the cover plate 2, which can simplify the assembly operation, and the integral forming of the cover plate 2 and the steel sheet 3 can improve the positioning accuracy of the first electric contact portion 31 and the second electric contact portion 32, thereby avoiding the problem of electrical conduction between the speaker unit 4 and the main control board 5 due to inaccurate positioning of the steel sheet 3.

[0042] Furthermore, the cover plate 2 is provided with a first through hole 21 and a second through hole 22 corresponding to the first electrical contact portion 31 and the second electrical contact portion 32 , respectively.

[0043] 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 21 and the second through hole 22 .

[0044] Furthermore, it also includes a base 1, the cover plate 2 is covered on the base 1, the speaker unit 4 and the main control board 5 are both arranged between the base 1 and the cover plate 2, the base 1 is provided with a first positioning block 11, and the cover plate 2 is provided with a first positioning hole 23 corresponding to the first positioning block 11.

[0045] Furthermore, the base 1 is provided with a second positioning block 12 , and the main control board 5 is provided with a second positioning hole 52 corresponding to the second positioning block 12 .

[0046] Furthermore, a plurality of protrusions 13 arranged around the speaker unit 4 are provided on one side of the base 1 close to the cover plate 2 , and a positioning groove 14 is formed between the plurality of protrusions 13 .

[0047] Furthermore, the base 1 is provided with a bolt hole 15 , and the cover plate 2 is provided with a third through hole 24 corresponding to the bolt hole 15 , so that the cover plate 2 and the base 1 can be fixed by bolts.

[0048] From the above description, it can be seen that the base 1, the cover 2, the main control board 5 and the speaker unit 4 can all be accurately positioned, and the base 1 and the cover 2 are fixed by bolts to ensure that the cover 2 can apply a certain pressure to the speaker unit 4 and the main control board 5, thereby ensuring the reliability of electrical conduction between the main control board 5 and the speaker unit 4 through the steel sheet 3 provided on the cover 2.

[0049] Furthermore, the first electrode 41 includes a first pad 411 and a first elastic piece 412 disposed on the first pad 411 , and the first elastic piece 412 abuts against the first electrical contact portion 31 .

[0050] It can be seen from the above description that the first electrode 41 abuts against the first electrical contact portion 31 via the first elastic piece 412 , which can improve the stability and reliability of the electrical contact between the first electrical contact portion 31 and the first electrode 41 .

[0051] Furthermore, the second electrode 51 includes a second pad 511 and a second elastic piece 512 disposed on the second pad 511 , and the second elastic piece 512 abuts against the second electrical contact portion 32 .

[0052] It can be seen from the above description that the second electrode 51 abuts against the second electrical contact portion 32 via the second elastic piece 512 , which can improve the stability and reliability of the electrical contact between the second electrical contact portion 32 and the second electrode 51 .

[0053] Embodiment 1

[0054] Please refer to Figures 1 to 7 Embodiment 1 of the utility model provides a speaker module, comprising: a base 1, a cover plate 2, a steel sheet 3, a speaker unit 4 and a main control board 5; the cover plate 2 is covered on the base 1, and the speaker unit 4 and the main control board 5 are both arranged between the base 1 and the cover plate 2; the steel sheet 3 comprises a first electric contact portion 31 and a second electric contact portion 32, and the first electric contact portion 31 and the second electric contact portion 32 are both arranged on the lower surface of the cover plate 3; a first electrode 41 is provided on the top of the speaker unit 4, and the first electric contact portion 31 abuts against the first electrode 41, the main control board 5 is arranged in the accommodating cavity, and a second electrode 51 is provided on the side of the main control board 5 close to the cover plate 2, and the second electric contact portion 32 abuts against the second electrode 51.

[0055] In the present embodiment, the speaker module realizes electrical conduction between the speaker unit 4 and the main control board 5 by respectively abutting the first electrode 41 of the speaker unit 4 and the second electrode 51 of the main control board 5 via the first electric contact portion 31 and the second electric contact portion 32 provided on the cover plate 2. No welding operation is required, and only the cover plate 2 and the base 1 need to be positioned and crimped during assembly. Therefore, the speaker module will not fail due to poor welding of the flexible circuit board, and the speaker module has high assembly efficiency and yield rate.

[0056] Please refer to Figure 5 In this embodiment, the steel sheet 3 further includes a connection portion 33, one end of the connection portion 33 is connected to the first electric contact portion 31, and the other end of the connection portion 33 is connected to the second electric contact portion 32, wherein the connection portion 33 is injection molded on the housing. Therefore, in this embodiment, the steel sheet 3 and the cover plate 2 are integrally formed materials, and it is not necessary for the operator to perform bonding operations on the steel sheet 3. The speaker module can ensure the positioning and fixing effect between the steel sheet 3 and the cover plate 2. After the cover plate 2 and the base 1 are crimped and fixed, the reliability and stability of the electrical conduction between the speaker unit 4 and the main control board 5 through the steel sheet 3 can be ensured.

[0057] Please combine Figure 1 , Figure 6 and Figure 7 For reference, in this embodiment, the base 1 is provided with a first positioning block 11, the cover plate 2 is provided with a first positioning hole 23 corresponding to the first positioning block 11, the base 1 is provided with a second positioning block 12, and the main control board 5 is provided with a second positioning hole 52 corresponding to the second positioning block 12; the base 1 is provided with a plurality of protrusions 13 on the side close to the accommodating cavity, and the plurality of protrusions 13 are arranged around the speaker unit 4 so that the plurality of protrusions 13 are surrounded to form a positioning groove 14; the base 1 is provided with a bolt hole 15, and the cover plate 2 is provided with a third through hole 24 corresponding to the bolt hole 15 so that the cover plate 2 and the base 1 are fixed by bolts. The base 1, the cover plate 2, the main control board 5 and the speaker unit 4 can all be accurately positioned, so when the cover plate 2 is crimped and fixed to the base 1, the first electric contact part 31 of the steel sheet 3 can accurately abut the first electrode 41, and the second electric contact part 32 can accurately abut the second electrode 51, and the reliability of the speaker module is higher.

[0058] Please refer to Figure 7The first electrode 41 includes a first solder pad 411 and a first elastic sheet 412 disposed on the first solder pad 411, the first elastic sheet 412 abuts against the first electrical contact portion 31, and the first elastic sheet 412 can be elastically deformed when abutting against the first electrical contact portion 31, which can ensure the stability of the electrical contact between the first electrode 41 and the first electrical contact portion 31; the second electrode 51 includes a second solder pad 511 and a second elastic sheet 512 disposed on the second solder pad 511, the second elastic sheet 512 abuts against the second electrical contact portion 32, and the second elastic sheet 512 can be elastically deformed when abutting against the second electrical contact portion 32, which can ensure the stability of the electrical contact between the second electrode 51 and the first electrical contact portion 31.

[0059] In addition, in the present embodiment, the cover plate 2 is provided with a first through hole 21 and a second through hole 22 corresponding to the first electric contact portion 31 and the second electric contact portion 32 respectively; when the first spring piece 412 abuts against the first electric contact portion 31, the first electric contact portion 31 can be recessed into the first through hole 21 to a certain extent, thereby increasing the contact area between the two; when the second spring piece 512 abuts against the second electric contact portion 32, the second electric contact portion 32 can be recessed into the second through hole 22 to a certain extent, thereby increasing the contact area between the two; in addition, the operator can also use an electrical probe to perform an electrical performance test on the speaker module through the first through hole 21 and the second through hole 22.

[0060] In summary, the speaker module provided by the utility model sets the steel sheet 3 on the cover plate 2. After the speaker module is assembled, the first electric contact portion 31 of the steel sheet 3 conflicts with the first electrode 41 of the speaker unit 4, and the second electric contact portion 32 of the steel sheet 3 conflicts with the second electrode 51 of the main control board 5. Therefore, the speaker unit 4 and the main control board 5 in the speaker module are electrically connected through the steel sheet 3. The speaker module does not need to use a flexible circuit board, so the speaker module will not fail due to welding failure of the flexible circuit board. In addition, during the assembly process, the speaker module only needs to position and place the electrical components such as the speaker unit 4 and the main control board 5, and then crimp the base 1 and the cover plate 2. The speaker module has high assembly efficiency and high yield rate.

[0061] 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: Cover plate; A steel sheet, the steel sheet comprising a first electric contact portion and a second electric contact portion, wherein the first electric contact portion and the second electric contact portion are both disposed on a lower surface of the cover plate; A speaker unit, wherein the cover plate is arranged on the top of the speaker unit, a first electrode is arranged on the top of the speaker unit, and the first electrical contact part abuts against the first electrode; The main control board, the cover plate is arranged on the top of the main control board, the top of the main control board is provided with a second electrode, and the second electric contact part abuts against the second electrode.

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, and the other end of which is connected to the second electric contact portion.

3. The speaker module according to claim 2, characterized in that: The connecting portion is integrally formed on the cover plate.

4. The speaker module according to claim 1, characterized in that: The cover plate 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.

5. The speaker module according to claim 1, characterized in that: It also includes a base, the cover plate is covered on the base, the speaker unit and the main control board are both arranged between the base and the cover plate, the base is provided with a first positioning block, and the cover plate is provided with a first positioning hole corresponding to the first positioning block.

6. The speaker module according to claim 5, characterized in that: The base is provided with a second positioning block, and the main control board is provided with a second positioning hole corresponding to the second positioning block.

7. The speaker module according to claim 5, characterized in that: A plurality of protrusions arranged around the speaker unit are provided on one side of the base close to the cover plate, and a positioning groove is formed between the plurality of protrusions.

8. The speaker module according to claim 5, characterized in that: The base is provided with a bolt hole, and the cover plate is provided with a third through hole corresponding to the bolt hole, so that the cover plate and the base are fixed by bolts.

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

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

Images