Miniature loudspeaker

Abstract

The utility model discloses a miniature loudspeaker, which comprises a voice coil, a diaphragm assembly and a framework, and a gap is arranged between the diaphragm assembly and the voice coil. At least part of the area of the framework is located in the gap, the framework is connected with the voice coil and the vibrating diaphragm assembly, and the framework is provided with a weight reduction groove hole. The weight-reducing slotted hole is arranged on the framework for connecting the vibrating diaphragm component and the voice coil, so that the overall weight of the framework is effectively reduced, the weight of the vibrating component of the micro loudspeaker is reduced, and the acoustic performance of the micro loudspeaker is improved. Partial area of the framework is embedded into the voice diaphragm and forms a hooking structure with the voice diaphragm, so that the framework and the voice diaphragm are not easy to separate, and the structural stability of the miniature loudspeaker is effectively improved.

Description

Technical Field

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

[0002] As a common electroacoustic transducer device that converts electrical energy into sound energy, micro speakers play an indispensable role in sound amplification systems.

[0003] In pursuit of high performance, the industry usually adopts a solution of adding a skeleton to the voice coil. This solution connects the voice coil and the diaphragm assembly through the skeleton, so that the voice coil can be inserted deeper into the magnetic gap, thereby achieving better performance. However, in the prior art, the weight of the skeleton is generally relatively large (some skeletons are made of hardware materials), which increases the vibration weight of the micro speaker and affects some acoustic performance. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a high-performance micro-speaker with a frame.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a miniature speaker, comprising:

[0006] Voice coil;

[0007] A diaphragm assembly, wherein a gap is provided between the diaphragm assembly and the voice coil;

[0008] A skeleton, at least a portion of which is located in the gap, the skeleton is respectively connected to the voice coil and the diaphragm assembly, and a weight-reducing slot is provided on the skeleton.

[0009] Furthermore, the skeleton includes an upper connecting portion, a raised portion and a lower connecting portion which are connected in sequence, the upper connecting portion is connected to the diaphragm assembly, and the lower connecting portion is connected to the voice coil.

[0010] Furthermore, the diaphragm assembly includes a sound membrane, and the upper connecting portion and the sound membrane are injection molded into an integrated structure.

[0011] Furthermore, the upper connecting portion is provided with the weight-reducing slot hole, and a partial area of ​​the sound membrane is filled with the weight-reducing slot hole.

[0012] Furthermore, the sound membrane has an engaging portion for cooperating with the upper connecting portion, at least a partial area of ​​the upper connecting portion is embedded in the engaging portion, the upper connecting portion is provided with the weight reducing slot hole, the weight reducing slot hole on the upper connecting portion is a through hole structure, the engaging portion includes an upper combining portion located above the upper connecting portion, a lower combining portion located below the upper connecting portion, and a columnar combining portion located in the weight reducing slot hole, the upper combining portion and the lower combining portion are both in contact and connected with the upper connecting portion, and the columnar combining portion connects the upper combining portion and the lower combining portion.

[0013] Furthermore, the sound membrane includes an inner fixing portion, a folding ring portion and an outer fixing portion which are sequentially connected from the inside to the outside, and the inner fixing portion is connected to the embedding portion.

[0014] Furthermore, the upper connecting portion is arranged in parallel with the inner fixing portion.

[0015] Furthermore, a window is provided in the central area of ​​the inner fixing part, the upper connecting part is embedded in the engaging part from the wall surface of the window, the top surface of the upper connecting part is arranged lower than the top surface of the inner fixing part, and the bottom surface of the upper connecting part is arranged higher than the bottom surface of the inner fixing part.

[0016] Furthermore, there are multiple weight-reducing slots.

[0017] Furthermore, at least part of the weight-reducing slots are blind slot structures.

[0018] The beneficial effect of the utility model is that weight-reducing slots are provided on the skeleton connecting the diaphragm assembly and the voice coil, which effectively reduces the overall weight of the skeleton, thereby reducing the weight of the vibration assembly of the micro-speaker, which is beneficial to improving the acoustic performance of the micro-speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of a portion of the structure of a vibration component in a micro-speaker according to the first embodiment of the present invention Figure 1 ;

[0020] Figure 2 A cross-sectional view of a portion of the structure of a vibration component in a micro-speaker according to the first embodiment of the present invention Figure 2 ;

[0021] Figure 3 It is a schematic structural diagram of the skeleton in the micro-speaker of the first embodiment of the utility model.

[0022] Description of labels:

[0023] 1. Frame; 11. Weight-reducing slots; 12. Upper connecting part; 13. Elevated part; 14. Lower connecting part;

[0024] 2. Sound membrane; 21. Fitting part; 211. Upper connecting part; 212. Lower connecting part; 213. Columnar connecting part; 22. Internal fixing part; 221. Window; 23. Folding ring part; 24. External fixing part. DETAILED DESCRIPTION

[0025] 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.

[0026] Please refer to Figures 1 to 3 , a micro speaker, comprising:

[0027] Voice coil;

[0028] A diaphragm assembly, wherein a gap is provided between the diaphragm assembly and the voice coil;

[0029] A skeleton 1, wherein at least a portion of the skeleton 1 is located in the gap, the skeleton 1 is respectively connected to the voice coil and the diaphragm assembly, and a weight-reducing slot 11 is provided on the skeleton 1.

[0030] From the above description, it can be seen that the beneficial effect of the utility model is that a weight-reducing slot 11 is provided on the skeleton 1 connecting the diaphragm assembly and the voice coil, which effectively reduces the overall weight of the skeleton 1, thereby reducing the weight of the vibration assembly of the micro-speaker, which is beneficial to improving the acoustic performance of the micro-speaker.

[0031] Furthermore, the skeleton 1 includes an upper connecting portion 12, a raised portion 13 and a lower connecting portion 14 which are connected in sequence, the upper connecting portion 12 is connected to the diaphragm assembly, and the lower connecting portion 14 is connected to the voice coil.

[0032] From the above description, it can be known that the upper connecting portion 12 is used to connect the diaphragm assembly, the lower connecting portion 14 is used to connect the voice coil, and the elevated portion 13 is used to increase the distance between the voice coil and the diaphragm assembly, so that the voice coil can go deeper into the magnetic gap.

[0033] Furthermore, the diaphragm assembly includes a sound membrane 2, and the upper connecting portion 12 and the sound membrane 2 are injection molded into an integrated structure.

[0034] It can be seen from the above description that the connection method between the upper connecting part 12 and the sound membrane 2 is simple and reliable, which is conducive to simplifying the assembly process of the assemblers and improving the consistency of product production.

[0035] Furthermore, the upper connecting portion 12 is provided with the weight-reducing slot hole 11 , and a partial area of ​​the sound membrane 2 is filled with the weight-reducing slot hole 11 .

[0036] It can be seen from the above description that the weight-reducing slots 11 provided on the upper connecting portion 12 can increase the contact area between the diaphragm 2 and the upper connecting portion 12 , thereby improving the stability of the connection between the frame 1 and the diaphragm 2 .

[0037] Furthermore, the sound membrane 2 has an engaging portion 21 for cooperating with the upper connecting portion 12, at least a partial area of ​​the upper connecting portion 12 is embedded in the engaging portion 21, the upper connecting portion 12 is provided with the weight reducing slot 11, the weight reducing slot 11 located on the upper connecting portion 12 is a through hole structure, the engaging portion 21 includes an upper combining portion 211 located above the upper connecting portion 12, a lower combining portion 212 located below the upper connecting portion 12 and a columnar combining portion 213 located in the weight reducing slot 11, the upper combining portion 211 and the lower combining portion 212 are both in contact and connected with the upper connecting portion 12, and the columnar combining portion 213 connects the upper combining portion 211 and the lower combining portion 212.

[0038] It can be seen from the above description that the above structure can improve the stability of the connection between the skeleton 1 and the sound membrane 2 to a greater extent, and greatly reduce the risk of accidental separation of the skeleton 1 and the sound membrane 2.

[0039] Furthermore, the sound membrane 2 includes an inner fixing portion 22 , a folding ring portion 23 and an outer fixing portion 24 which are sequentially connected from the inside to the outside, and the inner fixing portion 22 is connected to the embedding portion 21 .

[0040] It can be known from the above description that the embedding portion 21 can be a partial area of ​​the inner fixing portion 22 , or the entire inner fixing portion 22 can serve as the embedding portion 21 .

[0041] Furthermore, the upper connecting portion 12 and the inner fixing portion 22 are arranged in parallel.

[0042] Furthermore, a window 221 is provided in the central area of ​​the inner fixing portion 22, and the upper connecting portion 12 is embedded in the engaging portion 21 from the wall surface of the window 221, and the top surface of the upper connecting portion 12 is set lower than the top surface of the inner fixing portion 22, and the bottom surface of the upper connecting portion 12 is set higher than the bottom surface of the inner fixing portion 22.

[0043] It can be seen from the above description that the existence of the upper connecting portion 12 will not increase the overall cross-sectional height of the micro-speaker, which is beneficial to ensuring the lightness and thinness of the micro-speaker.

[0044] Furthermore, there are multiple weight-reducing slots 11 .

[0045] It can be seen from the above description that providing a plurality of weight-reducing slots 11 can reduce the weight of the frame 1 to a greater extent.

[0046] Furthermore, at least part of the weight-reducing slots 11 are blind slot structures.

[0047] It can be seen from the above description that the structural form of the weight-reducing slot 11 can be a blind slot structure, a through hole structure, or a notch structure, and the specific design can be selected according to actual needs.

[0048] Embodiment 1

[0049] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is: a miniature speaker that can be applied to electronic devices that can make sounds, such as mobile phones, tablet computers, smart watches, game controllers, headphones, etc.

[0050] The micro-speaker comprises a basin frame and a magnetic circuit component and a vibration component respectively connected to the basin frame, the magnetic circuit component has a magnetic gap, the vibration component comprises a diaphragm component, a skeleton 1 and a voice coil, there is a gap between the diaphragm component and the voice coil, at least a part of the skeleton 1 is located in the gap, the skeleton 1 is respectively connected to the voice coil and the diaphragm component, the skeleton 1 is provided with a weight-reducing slot 11, and the voice coil is arranged corresponding to the magnetic gap.

[0051] In this embodiment, the skeleton 1 includes an upper connecting part 12, an elevated part 13 and a lower connecting part 14 which are connected in sequence. The upper connecting part 12 is connected to the diaphragm assembly, and the lower connecting part 14 is connected to the voice coil. In a specific product, the upper connecting part 12, the elevated part 13 and the lower connecting part 14 are preferably an integrated structure that is integrally processed and formed.

[0052] The diaphragm assembly includes a sound membrane 2. To facilitate the processing and production of the diaphragm assembly, optionally, the upper connecting portion 12 and the sound membrane 2 are injection molded into an integrated structure.

[0053] The upper connecting portion 12 is provided with the weight-reducing slot 11, and a part of the area of ​​the sound membrane 2 is filled with the weight-reducing slot 11, so that the connection area between the upper connecting portion 12 and the sound membrane 2 can be increased, thereby improving the stability of the connection between the two.

[0054] In this embodiment, the sound membrane 2 has a fitting portion 21 for cooperating with the upper connecting portion 12, at least a part of the upper connecting portion 12 is embedded in the fitting portion 21, the upper connecting portion 12 is provided with the weight-reducing slot 11, the weight-reducing slot 11 on the upper connecting portion 12 is a through-hole structure, the fitting portion 21 includes an upper connecting portion 211 located above the upper connecting portion 12, a lower connecting portion 212 located below the upper connecting portion 12, and a columnar connecting portion 213 located in the weight-reducing slot 11, the upper connecting portion 211 and the lower connecting portion 212 are both in contact with and connected to the upper connecting portion 12, and the columnar connecting portion 213 connects the upper connecting portion 211 and the lower connecting portion 212. It is not difficult to understand that the fitting portion 21 forms a hooking structure for the upper connecting portion 12, so that the upper connecting portion 12 is difficult to separate from the sound membrane 2.

[0055] In detail, the sound membrane 2 includes an inner fixing portion 22, a folding ring portion 23 and an outer fixing portion 24 which are sequentially connected from the inside to the outside, and the inner fixing portion 22 is connected to the embedding portion 21. Optionally, the upper connecting portion 12 and the inner fixing portion 22 are arranged in parallel.

[0056] In order to avoid the existence of the upper connecting part 12 increasing the overall thickness of the micro-speaker, in the present embodiment, a window 221 is provided in the central area of ​​the inner fixing part 22, and the upper connecting part 12 is embedded in the engaging part 21 from the wall surface of the window 221, and the top surface of the upper connecting part 12 is set lower than the top surface of the inner fixing part 22, and the bottom surface of the upper connecting part 12 is set higher than the bottom surface of the inner fixing part 22.

[0057] The number of the weight-reducing slot 11 may be one, but in order to ensure the structural strength of the skeleton 1 , it is preferred that the number of the weight-reducing slot 11 is multiple.

[0058] In a specific product, optionally, at least part of the weight-reducing slots 11 are blind slot structures.

[0059] In summary, the micro-speaker provided by the present invention has weight-reducing slots on the frame connecting the diaphragm assembly and the voice coil, which effectively reduces the overall weight of the frame, thereby reducing the weight of the vibration assembly of the micro-speaker, which is beneficial to improving the acoustic performance of the micro-speaker; a partial area of ​​the frame is embedded in the sound membrane and forms a hooking structure with the sound membrane, the frame and the sound membrane are not easy to separate, effectively improving the structural stability of the micro-speaker.

[0060] 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 micro speaker, characterized in that: include Voice coil; A diaphragm assembly, wherein a gap is provided between the diaphragm assembly and the voice coil; A skeleton, at least a portion of which is located in the gap, the skeleton is respectively connected to the voice coil and the diaphragm assembly, and a weight-reducing slot is provided on the skeleton.

2. The micro-speaker according to claim 1, characterized in that: The frame includes an upper connecting portion, a raised portion and a lower connecting portion which are connected in sequence, the upper connecting portion is connected to the diaphragm assembly, and the lower connecting portion is connected to the voice coil.

3. The micro-speaker according to claim 2, characterized in that: The diaphragm assembly includes a sound membrane, and the upper connecting portion and the sound membrane are injection-molded into an integrated structure.

4. The micro-speaker according to claim 3, characterized in that: The upper connecting portion is provided with the weight-reducing slot hole, and a partial area of ​​the sound membrane is filled with the weight-reducing slot hole.

5. The micro-speaker according to claim 4, characterized in that: The sound membrane has an engaging portion for cooperating with the upper connecting portion, at least a partial area of ​​the upper connecting portion is embedded in the engaging portion, the upper connecting portion is provided with the weight reducing slot hole, the weight reducing slot hole on the upper connecting portion is a through hole structure, the engaging portion includes an upper combining portion located above the upper connecting portion, a lower combining portion located below the upper connecting portion, and a columnar combining portion located in the weight reducing slot hole, the upper combining portion and the lower combining portion are both in contact with and connected to the upper connecting portion, and the columnar combining portion connects the upper combining portion and the lower combining portion.

6. The micro-speaker according to claim 5, characterized in that: The sound membrane includes an inner fixing part, a folding ring part and an outer fixing part which are connected in sequence from the inside to the outside, and the inner fixing part is connected to the embedding part.

7. The micro-speaker according to claim 6, characterized in that: The upper connecting portion is arranged in parallel with the inner fixing portion.

8. The micro-speaker according to claim 7, characterized in that: A window is provided in the central area of ​​the inner fixing part, and the upper connecting part is embedded in the fitting part from the wall surface of the window. The top surface of the upper connecting part is arranged lower than the top surface of the inner fixing part, and the bottom surface of the upper connecting part is arranged higher than the bottom surface of the inner fixing part.

9. The micro-speaker according to claim 1, characterized in that: The number of the weight-reducing slots is multiple.

10. The micro-speaker according to claim 9, characterized in that: At least part of the weight-reducing slots are blind slot structures.

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