CN219802573U - Speaker sound cavity structure and portable electronic equipment - Google Patents
Speaker sound cavity structure and portable electronic equipment Download PDFInfo
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- CN219802573U CN219802573U CN202320846259.2U CN202320846259U CN219802573U CN 219802573 U CN219802573 U CN 219802573U CN 202320846259 U CN202320846259 U CN 202320846259U CN 219802573 U CN219802573 U CN 219802573U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 145
- 239000010959 steel Substances 0.000 claims abstract description 145
- 238000001746 injection moulding Methods 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 14
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000003475 lamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a loudspeaker sound cavity structure, which comprises a loudspeaker module and a shell provided with a sound cavity, wherein the loudspeaker module is fixed in the shell in a sealed embedded manner, and a positive terminal and a negative terminal extend outwards from the loudspeaker module; the starting end of the positive steel sheet is embedded and fixed in the shell and is electrically connected with the positive terminal in a welding way, and the tail end of the positive steel sheet penetrates out of the sound cavity and is used for being electrically connected with the positive electrode of the external PCB; the starting end of the negative electrode steel sheet is embedded and fixed in the shell and is electrically connected with the negative electrode terminal in a welding way, and the tail end of the negative electrode steel sheet penetrates out of the sound cavity and is used for being electrically connected with the negative electrode of the external PCB; the positive steel sheet, the negative steel sheet and the shell form an integrated structure by injection molding. According to the utility model, the existing FPC is replaced by the positive electrode steel sheet and the negative electrode steel sheet, so that the cost is low, the assembly is convenient, the timeliness is higher, and the sound cavity tightness is better. In addition, the utility model also discloses portable electronic equipment with the loudspeaker sound cavity structure.
Description
Technical Field
The present utility model relates to speaker accessories, and more particularly, to a sound cavity structure of a speaker and an electronic device having the sound cavity structure.
Background
Speaker modules (also called SPK cores) of speakers (also called SPKs or speakers) used in portable electronic devices such as mobile phones, notebook computers and tablet computers are all built in a closed sound cavity (also called BOX), the air tightness of the sound cavity mainly influences electroacoustic performance and service life, and the better the air tightness of the sound cavity is, the better the performance of the speaker is. The existing speaker modules are electrically connected with the outside PCB circuit board by penetrating out the sound cavity through the flexible circuit board (PFC). According to the scheme of conducting electrical connection through the sound cavity by the flexible circuit board, on one hand, the air tightness of the sound cavity is affected because the flexible circuit board cannot be perfectly sealed with the shell; on the other hand, the flexible circuit board needs to be assembled on the basis of the shell, so that the complexity of assembly is increased, and meanwhile, the cost is increased.
Therefore, there is a need for a speaker sound cavity structure that is low in cost, convenient to assemble, and highly time efficient, and that provides a sound cavity with better tightness.
Disclosure of Invention
The utility model aims to provide a loudspeaker sound cavity structure which is low in cost, convenient to assemble and high in timeliness and enables sound cavity tightness to be better.
Another object of the present utility model is to provide a portable electronic device having a speaker sound cavity structure, which is low in cost, convenient to assemble and high in timeliness, and makes the sound cavity more airtight.
In order to achieve the above purpose, the utility model provides a speaker sound cavity structure, which comprises a speaker module, and also comprises a shell provided with a sound cavity, wherein the shell is provided with a mounting opening in a penetrating way, the speaker module is mounted in the mounting opening, and the speaker module extends outwards to form a positive terminal and a negative terminal which are mutually independent; the starting end of the positive steel sheet is embedded and fixed in the shell and is electrically welded with the positive terminal, the tail end of the positive steel sheet penetrates out of the sound cavity and is used for being electrically connected with the positive electrode of the external PCB, and the positive steel sheet and the shell form an integrated structure through injection molding; the starting end of a negative steel sheet is embedded and fixed in the shell and is electrically welded with the negative terminal, the tail end of the negative steel sheet penetrates out of the sound cavity and is used for being electrically connected with a negative electrode of an external PCB, and the negative steel sheet and the shell form an integrated structure through injection molding.
Preferably, the starting end of the positive electrode steel sheet of the sound cavity structure of the loudspeaker is in a bending structure. The starting end of the positive steel sheet is of a bending structure, so that the positive steel sheet is embedded and fixed in the shell body more stably and reliably, the firmness of electric welding connection with the positive terminal of the loudspeaker module is further ensured, and the normal operation of the loudspeaker module is ensured; meanwhile, the positive steel sheet is further prevented from loosening, and the defect that abnormal sound is generated due to vibration caused by unstable fixation of the positive steel sheet when the sound cavity works is further avoided.
Preferably, the mounting port of the speaker sound cavity structure of the present utility model protrudes outwards to form a first boss, the starting end of the positive steel sheet passes through the first boss and then is overlapped with the positive terminal, and the starting end of the negative steel sheet passes through the first boss and then is overlapped with the negative terminal. According to the utility model, the first protruding boss is arranged to bear the starting end of the positive steel sheet and the starting end of the negative steel sheet, so that the stability of fixing the positive steel sheet and the negative steel sheet on the shell is ensured, a bearing platform is provided for corresponding electric welding of the positive steel sheet and the negative steel sheet by the positive terminal and the negative terminal, the reliability of electric welding is ensured, and the normal operation of the loudspeaker module is further ensured.
Preferably, the starting end of the negative steel sheet of the sound cavity structure of the loudspeaker is in a bending structure. The starting end of the negative electrode steel sheet is of a bending structure, so that the negative electrode steel sheet is embedded and fixed in the shell body more stably and reliably, the firmness of electric welding connection with the negative electrode terminal of the loudspeaker module is further ensured, and the normal operation of the loudspeaker module is ensured; meanwhile, the negative steel sheet is further prevented from loosening, and the defect that abnormal sound is generated due to vibration caused by unstable fixation of the negative steel sheet when the sound cavity works is further avoided.
Preferably, the outer side of the shell of the loudspeaker sound cavity structure protrudes out of the second boss, the tail end of the positive steel sheet penetrates out of the sound cavity and is embedded and fixed in the second boss, and the upper surface of the positive steel sheet is exposed out; the tail end of the negative electrode steel sheet penetrates out of the sound cavity and is internally embedded and fixed on the second boss, and the upper surface of the negative electrode steel sheet is exposed out. According to the utility model, the protruding second boss is arranged to bear the tail end of the positive steel sheet and the tail end of the negative steel sheet, so that a bearing platform is provided for corresponding electric welding of the positive steel sheet and the negative steel sheet on the positive electrode and the negative electrode of the external PCB, and the normal operation of the loudspeaker module is ensured.
Preferably, the positive steel sheet and the negative steel sheet of the speaker sound cavity structure are arranged in parallel.
Preferably, the middle section of the positive electrode steel sheet of the sound cavity structure of the loudspeaker is embedded at the bottom of the sound cavity and is arranged flush with the bottom surface of the sound cavity.
Preferably, the middle section of the negative steel sheet of the sound cavity structure of the loudspeaker is embedded at the bottom of the sound cavity and is arranged flush with the bottom surface of the sound cavity.
Preferably, the starting end of the positive steel sheet and the starting end of the negative steel sheet of the speaker sound cavity structure are both in a Z-shaped structure.
The portable electronic equipment provided by the utility model comprises any one of the loudspeaker sound cavity structures.
Compared with the prior art, the utility model adopts the positive steel sheet and the negative steel sheet to replace the existing FPC; firstly, when the shell is injection molded, the positive steel sheet and the negative steel sheet are integrally injection molded in the shell; on one hand, the assembly process of independently installing the positive steel sheet and the negative steel sheet is reduced, so that the assembly process is optimized, and the assembly is quicker and more convenient; on the other hand, the positive steel sheet and the negative steel sheet are integrally formed with the shell in an injection molding way, so that the positive steel sheet and the negative steel sheet cannot loosen, and the defect that abnormal sound is generated due to vibration caused by unstable fixation of the positive steel sheet and the negative steel sheet when the sound cavity works is avoided; meanwhile, the positive steel sheet and the negative steel sheet penetrate out of the shell in a sealing manner, so that the positive steel sheet and the negative steel sheet penetrate out of the shell and cannot influence the sealing performance of the sound cavity, the sealing performance of the sound cavity is ensured, and compared with the traditional scheme adopting FPC, the sealing performance of the sound cavity is greatly improved. In addition, the existing FPC is replaced by the positive steel sheet and the negative steel sheet, so that automatic production of the BOX can be realized, the efficiency is improved, the cost is saved, the timeliness is higher, the production period is shorter, the practicability is high, and the method is suitable for being widely popularized and used.
Drawings
Fig. 1 is a schematic diagram of the structure of the sound cavity of the speaker of the present utility model.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a cross-sectional view taken along line A-A in fig. 3.
Fig. 5 is an enlarged view of a portion C in fig. 4.
Fig. 6 is a sectional view taken along line B-B of fig. 3.
Fig. 7 is an enlarged view of a portion D in fig. 6.
Detailed Description
The technical scheme of the embodiment of the utility model is clearly and completely described below by combining specific embodiment examples with the attached drawings, and the technical scheme of the utility model is illustrated and described. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The following describes the embodiments of the present utility model in detail with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below. Embodiments of the present utility model will now be described with reference to the drawings, wherein like reference numerals represent like elements throughout.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
The portable electronic equipment is mainly a portable mobile terminal with a loudspeaker, such as a mobile phone, a notebook computer, a tablet computer and the like, and is provided with a loudspeaker sound cavity structure 100, and the loudspeaker sound cavity structure 100 mainly adopts a positive steel sheet and a negative steel sheet to replace the traditional FPC so as to realize the electrical connection between an external PCB and a loudspeaker module. According to the utility model, the existing FPC is replaced by the positive electrode steel sheet and the negative electrode steel sheet, so that the cost is low, the assembly is convenient, the timeliness is higher, and the sound cavity tightness is better. The speaker chamber structure 100 of the present utility model is described in further detail below in conjunction with fig. 1-7:
the utility model relates to a loudspeaker sound cavity structure 100, which comprises a loudspeaker module 1 and a shell 3 provided with a sound cavity 2. The housing 3 of the present utility model is provided with a mounting opening 4 therethrough, and the speaker module 1 of the present utility model is mounted in the mounting opening 4, and the mounting enables a seamless mounting (such seamless mounting is well known in the art) between the speaker module 1 and the mounting opening 1, thereby ensuring the air tightness of the sound chamber 2. In order to realize electrical connection with an external (referring to outside of the sound cavity) PCB (printed circuit board), the speaker module 1 in the sound cavity 2 extends outwards to form a positive terminal 11 and a negative terminal 12 which are mutually independent, wherein the mutually independent positive terminal 11 and negative terminal 12 are mutually non-electrically conducted. The starting end 51 of the positive steel sheet 5 is embedded and fixed in the shell 3 and is electrically connected with the positive terminal 11 in a welding way, and the tail end 52 of the positive steel sheet 5 penetrates out of the sound cavity 2 and is used for being electrically connected with the positive electrode of an external PCB; meanwhile, the anode steel sheet 5 and the shell 3 of the utility model form an integrated structure by injection molding. The starting end 61 of the negative steel sheet 6 is embedded and fixed in the shell 3 and is electrically connected with the negative terminal 12 in a welding way, and the tail end 62 of the negative steel sheet 6 penetrates out of the sound cavity 2 and is used for being electrically connected with the negative electrode of an external PCB (printed Circuit Board); simultaneously, the negative steel sheet 6 and the shell 3 form an integrated structure by injection molding; that is, when the housing 3 is formed by injection molding, the positive electrode steel sheet 5 and the negative electrode steel sheet 6 are synchronously injection molded in the housing 3, so that the positive electrode steel sheet 5 and the negative electrode steel sheet 6 form a closely-inseparable integrated structure with the housing 3. Therefore, the speaker sound cavity structure 100 of the present utility model adopts the positive steel sheet 5 and the negative steel sheet 6 to replace the existing FPC to realize the electrical connection between the external PCB and the speaker module 1; therefore, the utility model adopts the positive electrode steel sheet 5 and the negative electrode steel sheet 6 to replace the existing FPC, thereby having low cost, convenient assembly, higher timeliness and better sound cavity tightness. The preferred embodiments of the present utility model will be described in further detail with reference to fig. 1-6, below:
as shown in fig. 1 to 5, the starting end 51 of the positive electrode steel sheet 5 of the speaker cavity structure 100 of the present utility model has a bent structure. The starting end 51 of the positive steel sheet 5 is of a bending structure, so that the positive steel sheet is embedded and fixed in the shell 3 to be more stable and reliable, the firmness of electric welding connection with the positive terminal 11 of the loudspeaker module 1 is further ensured, and the normal operation of the loudspeaker module 1 is ensured; meanwhile, the positive steel sheet 5 is further prevented from loosening, and the defect that abnormal sound is generated due to vibration caused by unstable fixation of the positive steel sheet 5 when the sound cavity 2 works is further avoided. Specifically, the start end 51 of the positive electrode steel sheet 5 of the present utility model has a zigzag structure.
As shown in fig. 1 to 7, the mounting port 4 of the speaker sound cavity structure 100 of the present utility model protrudes out of the first boss 7, and the start end 51 of the positive electrode steel sheet 5 of the present utility model passes through the first boss 7 and then overlaps with the positive electrode terminal 11, and the two are welded on the basis of overlapping (i.e., lamination), so that the electrical and physical connection is more stable. The starting end 61 of the negative electrode steel sheet 6 passes through the first boss 7 and then is overlapped with the negative electrode terminal 12, and the starting end 61 and the negative electrode terminal are welded on the basis of overlapping (namely lamination), so that the electric and physical connection is more stable. According to the utility model, the protruding first boss 7 is arranged to bear the starting end 51 of the positive steel sheet 5 and the starting end 61 of the negative steel sheet 6, so that the stability of fixing the positive steel sheet 5 and the negative steel sheet 6 on the shell 3 is ensured, a bearing platform is provided for corresponding electric welding of the positive steel sheet 5 and the negative steel sheet 6 by the positive terminal 11 and the negative terminal 12, the reliability of electric welding is ensured, and the normal operation of the loudspeaker module is further ensured.
As shown in fig. 1-3, 6 and 7, the starting end 61 of the negative steel sheet 6 of the speaker cavity structure 100 of the present utility model has a bent structure. The starting end 61 of the negative electrode steel sheet 6 is of a bending structure, so that the negative electrode steel sheet is embedded and fixed in the shell 3 to be more stable and reliable, the firmness of electric welding connection with the negative electrode terminal 12 of the loudspeaker module 1 is further ensured, and the normal operation of the loudspeaker module 1 is ensured; meanwhile, the negative steel sheet 6 is further prevented from loosening, and the defect that abnormal sound is generated due to vibration caused by unstable fixation of the negative steel sheet 6 when the sound cavity 2 works is further avoided. Specifically, the starting end 61 of the negative electrode steel sheet 6 of the present utility model has a zigzag structure.
As shown in fig. 1 to 7, the second boss 8 protrudes from the outer side of the housing 3 of the speaker sound cavity structure 100 of the present utility model. The end 52 of the positive electrode steel sheet 5 of the present utility model passes through the sound cavity 2 and is fixed to the second boss 8 with the upper surface 521 exposed. The end 62 of the negative electrode steel sheet 6 of the present utility model passes through the sound cavity 2 and is embedded and fixed in the second boss 8, and the upper surface 621 is exposed to the outside. According to the utility model, the protruding second boss 8 is arranged to bear the tail end 52 of the positive steel sheet 5 and the tail end 62 of the negative steel sheet 6, so that a bearing platform is provided for corresponding electric welding of the positive steel sheet 5 and the negative steel sheet 6 of the positive and negative poles of an external PCB, and the normal operation of the loudspeaker module 2 is ensured.
As shown in fig. 1 to 3, the positive electrode steel sheet 5 and the negative electrode steel sheet 6 of the speaker cavity structure 100 of the present utility model are preferably disposed in parallel.
Preferably, the middle section of the positive plate 5 of the speaker cavity structure 100 is embedded in the bottom of the cavity 2 and is flush with the bottom surface of the cavity 2.
Preferably, the middle section of the negative steel sheet 6 of the speaker cavity structure 100 is embedded in the bottom of the cavity 2 and is flush with the bottom surface of the cavity 2.
Referring to fig. 1 to 7, the present utility model uses a positive electrode steel sheet 5 and a negative electrode steel sheet 6 to replace the existing FPC; firstly, when the shell 3 is injection molded, the positive steel sheet 5 and the negative steel sheet 6 are integrally injection molded in the shell 3; on one hand, the assembly process of independently installing the positive electrode steel sheet 5 and the negative electrode steel sheet 6 is reduced, so that the assembly process is optimized, and the assembly is quicker and more convenient; on the other hand, as the positive steel sheet 5 and the negative steel sheet 6 are integrally formed with the shell 3 in an injection molding way, the positive steel sheet 5 and the negative steel sheet 6 cannot loosen, and the defect that abnormal sound is generated due to vibration caused by unstable fixation of the positive steel sheet 5 and the negative steel sheet 6 when the sound cavity 2 works is avoided; meanwhile, the positive steel sheet 5 and the negative steel sheet 6 are sealed and penetrate out of the shell 3, so that the positive steel sheet 5 and the negative steel sheet 6 penetrate out of the shell 3 and cannot influence the tightness of the sound cavity 2, the tightness of the sound cavity 2 is ensured, and compared with the traditional scheme adopting FPC, the tightness of the sound cavity 2 is greatly improved. In addition, the utility model adopts the anode steel sheet 5 and the cathode steel sheet 6 to replace the existing FPC, can realize the automatic production of BOX, improves the efficiency, saves the cost, has higher timeliness and shorter production period, has strong practicability and is suitable for wide popularization and use.
The working principles of the speaker module 1, the sound cavity 2 and the external PCB circuit board according to the present utility model are well known to those skilled in the art, and will not be described in detail herein.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Meanwhile, the above disclosure is only of the preferred embodiments of the present utility model, and it is needless to say that the scope of the claims is not limited thereto, and therefore, the present utility model is not limited thereto except as by the claims.
Claims (10)
1. The loudspeaker sound cavity structure comprises a loudspeaker module and is characterized by further comprising a shell provided with a sound cavity, wherein the shell is provided with a mounting opening in a penetrating way, the loudspeaker module is mounted in the mounting opening, and the loudspeaker module extends outwards to form a positive terminal and a negative terminal which are independent from each other; the starting end of the positive steel sheet is embedded and fixed in the shell and is electrically welded with the positive terminal, the tail end of the positive steel sheet penetrates out of the sound cavity and is used for being electrically connected with the positive electrode of the external PCB, and the positive steel sheet and the shell form an integrated structure through injection molding; the starting end of a negative steel sheet is embedded and fixed in the shell and is electrically welded with the negative terminal, the tail end of the negative steel sheet penetrates out of the sound cavity and is used for being electrically connected with a negative electrode of an external PCB, and the negative steel sheet and the shell form an integrated structure through injection molding.
2. The speaker chamber structure of claim 1, wherein a beginning end of the positive electrode steel sheet is in a bent structure.
3. The speaker sound cavity structure as claimed in claim 1, wherein said mounting opening protrudes outwardly beyond said first boss, said start end of said positive plate passing through said first boss and overlapping said positive terminal, and said start end of said negative plate passing through said first boss and overlapping said negative terminal.
4. The speaker chamber structure of claim 1, wherein a beginning end of the negative plate is in a bent configuration.
5. The speaker sound cavity structure as claimed in claim 1, wherein the outer side of the housing protrudes out of the second boss, the end of the positive electrode steel sheet passes through the sound cavity and is fixed to the second boss with the upper surface exposed; the tail end of the negative electrode steel sheet penetrates out of the sound cavity and is internally embedded and fixed on the second boss, and the upper surface of the negative electrode steel sheet is exposed out.
6. The speaker chamber structure as recited in claim 1, wherein said positive steel sheet is disposed in parallel with said negative steel sheet.
7. The speaker chamber structure of claim 1, wherein the middle section of the positive steel sheet is embedded in the bottom of the chamber and is flush with the bottom surface of the chamber.
8. The speaker chamber structure of claim 1, wherein the middle section of the negative steel sheet is embedded in the bottom of the chamber and is flush with the bottom surface of the chamber.
9. The speaker chamber structure of claim 1, wherein the start end of the positive steel sheet and the start end of the negative steel sheet are both in a zig-zag configuration.
10. A portable electronic device comprising a speaker sound cavity structure as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320846259.2U CN219802573U (en) | 2023-04-14 | 2023-04-14 | Speaker sound cavity structure and portable electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320846259.2U CN219802573U (en) | 2023-04-14 | 2023-04-14 | Speaker sound cavity structure and portable electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219802573U true CN219802573U (en) | 2023-10-03 |
Family
ID=88180373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320846259.2U Active CN219802573U (en) | 2023-04-14 | 2023-04-14 | Speaker sound cavity structure and portable electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219802573U (en) |
-
2023
- 2023-04-14 CN CN202320846259.2U patent/CN219802573U/en active Active
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