Vibration assembly and micro loudspeaker

Abstract

The vibration assembly comprises a diaphragm assembly, a voice coil and a waterproof ventilation assembly, the diaphragm assembly comprises a voice diaphragm and a middle paste, the voice diaphragm comprises an inner fixing part, a folding ring part and an outer fixing part which are sequentially connected from inside to outside, the inner fixing part is provided with an open window, and the outer fixing part is provided with a waterproof ventilation assembly. The middle patch is fixedly connected with the inner fixing part and seals the open window, and air holes are formed in the middle patch; the waterproof breathable assembly comprises a waterproof breathable film and two metal reinforcing frames, the two opposite sides of the waterproof breathable film are connected with the metal reinforcing frames respectively, one metal reinforcing frame is fixedly connected with the middle sticker, and the breathable holes correspond to the hollow areas of the metal reinforcing frames. The vibration assembly is novel in structure, and the micro loudspeaker carrying the vibration assembly is excellent in high-frequency performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic transducers, and particularly relates to a vibration assembly and a micro speaker. Background Art

[0002] In the prior art, ventilation holes are arranged on the middle sticker of a micro speaker to balance the air pressure difference inside and outside the micro speaker. The conventional waterproof design of the micro speaker is to directly stick a waterproof breathable film on the surface of the middle sticker and make the waterproof breathable film cover the ventilation holes, so as to prevent external water vapor from invading the inside of the micro speaker through the ventilation holes. However, in this design, the arrangement of the ventilation holes on the middle sticker will undoubtedly weaken the rigidity of the middle sticker. When the micro speaker works at high frequencies, it is easy to generate splitting vibration, resulting in poor high-frequency performance of the product. Summary of the Utility Model

[0003] The technical problem solved by the utility model is to provide a novel vibration assembly and a micro speaker with the vibration assembly, and the micro speaker has excellent high-frequency performance.

[0004] In order to solve the above technical problem, the first technical solution adopted by the utility model is: a vibration assembly, comprising:

[0005] A diaphragm assembly, the diaphragm assembly comprising a sounding film and a middle sticker, the sounding film comprising an inner fixing part, a folding ring part and an outer fixing part which are connected in sequence from inside to outside, a window is arranged on the inner fixing part, the middle sticker is fixedly connected to the inner fixing part and closes the window, and ventilation holes are arranged on the middle sticker;

[0006] A waterproof breathable assembly, the waterproof breathable assembly comprising a waterproof breathable film and two metal reinforcing frames, the two metal reinforcing frames are respectively connected to opposite sides of the waterproof breathable film, one of the metal reinforcing frames is fixedly connected to the middle sticker and the ventilation holes are arranged corresponding to the hollow area of the metal reinforcing frame.

[0007] In one embodiment, the edge of the middle sticker is embedded in the inner fixing part.

[0008] In one embodiment, the middle sticker is located above or below the inner fixing part.

[0009] In one embodiment, it further comprises a voice coil, the voice coil is connected to the diaphragm assembly, and the voice coil is located below the middle sticker.

[0010] In one embodiment, the waterproof breathable assembly is located below the middle sticker and within the hollow area of the voice coil.

[0011] In one embodiment, the waterproof breathable assembly is located above the middle sticker.

[0012] In one embodiment, the number of the ventilation holes on the middle sticker is multiple, and the multiple ventilation holes are arranged in at least one row on the middle sticker.

[0013] In one embodiment, the material of the metal reinforcing frame is aluminum or aluminum alloy.

[0014] In one embodiment, the materials of the two metal reinforcing frames are the same or different.

[0015] In order to solve the above technical problems, the second technical solution adopted by the present utility model is: a micro speaker, including the above vibration assembly.

[0016] The beneficial effect of the present utility model is that: the structure of this vibration assembly is novel. The metal reinforcing frame in the waterproof and breathable assembly can effectively improve the overall structural strength of the waterproof and breathable assembly. When it is attached to the middle sticker, it can provide strong support for the middle sticker, thereby improving the phenomenon of insufficient rigidity of the middle sticker caused by the arrangement of the ventilation holes. Furthermore, the high-frequency split vibration phenomenon of the micro speaker equipped with this vibration assembly is improved, achieving the effect of improving the high-frequency performance of the micro speaker. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0018] Figure 1 It is an exploded view of the waterproof and breathable assembly of the present utility model;

[0019] Figure 2 It is a cross-sectional view of the vibration assembly in Embodiment 1 of the present utility model;

[0020] Figure 3 It is a cross-sectional view of the vibration assembly in Embodiment 2 of the present utility model.

[0021] Explanation of the Reference Numerals in the Drawings:

[0022] 1. Diaphragm assembly; 11. Sound film; 111. Inner fixing part; 112. Folded ring part; 113. Outer fixing part; 12. Middle sticker; 121. Ventilation hole;

[0023] 2. Voice coil;

[0024] 3. Waterproof and breathable assembly; 31. Waterproof and breathable film; 32. Metal reinforcing frame. Detailed Embodiments

[0025] The realization of the purpose, functional features, and advantages of the present utility model will be further described in conjunction with embodiments with reference to the accompanying drawings.

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0027] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0029] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "and / or" as an example, it includes the solution, or the solution, or the solution that satisfies both simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0030] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] Please refer to Figure 1 and Figure 2, Embodiment 1 of the present utility model is as follows: a micro speaker, which can be applied to electronic devices such as mobile phones, tablet computers, smart watches, etc. The micro speaker includes a chassis and a vibration assembly and a magnetic circuit assembly respectively connected to the chassis.

[0033] The vibration assembly includes a diaphragm assembly 1, a voice coil 2 and a waterproof and breathable assembly 3. The diaphragm assembly 1 includes a sound film 11 and a middle sticker 12. The sound film 11 includes an inner fixing portion 111, a folding ring portion 112 and an outer fixing portion 113 which are connected in sequence from inside to outside. The outer fixing portion 113 is connected to the chassis. An opening is provided on the inner fixing portion 111. The middle sticker 12 is fixedly connected to the inner fixing portion 111 and closes the opening. A breathable hole 121 is provided on the middle sticker 12. The voice coil 2 is connected to the diaphragm assembly 1. The voice coil 2 is located below the middle sticker 12. The breathable hole 121 corresponds to and communicates with the hollow area of the voice coil 2. The waterproof and breathable assembly 3 includes a waterproof and breathable film 31 and two metal reinforcing frames 32. The opposite sides of the waterproof and breathable film 31 are respectively connected with the metal reinforcing frames 32. One of the metal reinforcing frames 32 is fixedly connected to the middle sticker 12 and the breathable hole 121 is arranged corresponding to the hollow area of the metal reinforcing frame 32.

[0034] In this embodiment, the edge of the middle sticker 12 is embedded in the inner fixing portion 111. In other embodiments, it is also possible that the middle sticker 12 is located above or below the inner fixing portion 111, and specific selection and setting can be made according to actual needs.

[0035] Optionally, the waterproof and breathable assembly 3 is located above the middle sticker 12. That is to say, in the waterproof and breathable assembly 3, the bottom surface of the metal reinforcing frame 32 located below the waterproof and breathable film 31 is connected to the middle sticker 12.

[0036] To prevent the large-sized breathable hole 121 from overly weakening the rigidity of the middle sticker 12, preferably, the number of the breathable holes 121 on the middle sticker 12 is multiple. Further preferably, the multiple breathable holes 121 are arranged in at least one row on the middle sticker 12.

[0037] The material of the metal reinforcing frame 32 is aluminum or aluminum alloy or other metal materials. The materials of the two metal reinforcing frames 32 can be the same or different.

[0038] Embodiment 2

[0039] Please refer to Figure 1 and Figure 3, Embodiment 2 of the present utility model is a parallel technical solution to Embodiment 1, and the difference from Embodiment 1 is that: the waterproof and breathable component 3 is located below the middle patch 12 and within the hollow area of the voice coil 2. That is to say, in the waterproof and breathable component 3, the top surface of the metal reinforcement frame 32 located above the waterproof and breathable membrane 31 is surface-connected to the middle patch 12.

[0040] The above are only optional embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A vibration component, characterized in that: Comprising A diaphragm assembly, the diaphragm assembly including a sounding diaphragm and a middle sticker, the sounding diaphragm including an inner fixing portion, a surround portion and an outer fixing portion that are connected in sequence from the inside out, a window being provided on the inner fixing portion, the middle sticker being fixedly connected to the inner fixing portion and closing the window, and air-permeable holes being provided on the middle sticker; A waterproof and breathable assembly, the waterproof and breathable assembly including a waterproof and breathable film and two metal reinforcing frames, the opposite sides of the waterproof and breathable film being respectively connected with the metal reinforcing frames, one of the metal reinforcing frames being fixedly connected to the middle sticker and the air-permeable holes being arranged corresponding to the hollow area of the metal reinforcing frame.

2. The vibration assembly according to claim 1, wherein: The edge of the middle sticker is embedded in the inner fixing portion.

3. The vibration assembly according to claim 1, wherein: The middle sticker is located above or below the inner fixing portion.

4. The vibration assembly according to claim 1, characterized in that: It further includes a voice coil, the voice coil being connected to the diaphragm assembly, and the voice coil being located below the middle sticker.

5. The vibration assembly according to claim 4, wherein: The waterproof and breathable assembly is located below the middle sticker and within the hollow area of the voice coil.

6. The vibration assembly according to claim 4, wherein: The waterproof and breathable assembly is located above the middle sticker.

7. The vibration assembly according to claim 1, characterized in that: The number of the air-permeable holes on the middle sticker is multiple, and the multiple air-permeable holes are arranged in at least one row on the middle sticker.

8. The vibration assembly according to claim 1, wherein: The material of the metal reinforcing frame is aluminum or aluminum alloy.

9. The vibration assembly according to claim 1, characterized in that: The materials of the two metal reinforcing frames are the same or different.

10. Miniature loudspeaker, characterized in that: Including the vibration assembly according to any one of claims 1-9.

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