Vibration assembly and sound production unit

Abstract

The utility model discloses a vibration assembly and a sounding unit, the vibration assembly comprises a diaphragm assembly, a skeleton and a plurality of voice coils, the diaphragm assembly comprises a voice diaphragm and a dome arranged on the voice diaphragm, and the dome is provided with a plurality of convex strips protruding downwards; the skeleton is in an annular frame shape and is connected with the diaphragm assembly, the raised line is located in a hollow area of the skeleton, the bottom surface of the skeleton and the bottom surface of the raised line are coplanar, and an air flow channel is formed between the skeleton and the raised line; the top surface of the voice coil is connected with the bottom surface of the skeleton and the bottom surfaces of the raised lines. A plurality of voice coils can be connected at the same time through cooperation of the framework and the spherical top in the vibration assembly, use of a plurality of framework structures is avoided, components of the vibration assembly are reduced, the structure of the vibration assembly is simplified, assembly of the vibration assembly is facilitated, and the raised lines on the spherical top are not in contact with the framework to form an air flow channel, so that the vibration effect is improved. The air in the adjacent voice coils can be interacted through the air flow channels, so that the performance of the sound production unit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a vibration component and a sound-generating unit. Background Art

[0002] As a common electroacoustic transducer device that converts electrical energy into sound energy, the sound unit plays an indispensable role in the sound amplification system.

[0003] In order to improve the performance of the sound unit, some sound units have begun to adopt a multi-voice coil structure. However, in order to allow the voice coil to penetrate deeper into the magnetic gap, some sound units will set a skeleton structure on the top of the voice coil, such as the Chinese utility model patent with application number 202321609361.7. In this technical solution, each voice coil has a separate skeleton voice coil connected to it, which will undoubtedly increase the components of the sound unit and make the assembly process of the sound unit cumbersome. Moreover, since the skeleton voice coil is a closed structure, the air inside the unit cannot circulate from the top of the voice coil to the two adjacent voice coils, so that the performance of the sound unit is affected to a certain extent. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a vibration component with a simple multi-voice coil structure, which can make air flow more smoothly in adjacent voice coils, and also provide a sound unit with the vibration component.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a vibration component, comprising:

[0006] A diaphragm assembly, the diaphragm assembly comprising a diaphragm and a dome disposed on the diaphragm, the dome having a plurality of downwardly protruding ridges;

[0007] a frame, the frame being in a ring frame shape, the frame being connected to the diaphragm assembly, the ridges being located in a hollow area of the frame, the bottom surface of the frame being coplanar with the bottom surface of the ridges, and an air flow channel being formed between the frame and the ridges;

[0008] A plurality of voice coils are provided, wherein the top surfaces of the voice coils are connected to the bottom surface of the frame and the bottom surface of the convex strip.

[0009] Furthermore, the sound membrane includes an inner fixed part, a folding ring part and an outer fixed part which are connected in sequence from the inside to the outside, and a window is provided on the inner fixed part. The ball top is provided on the top surface of the inner fixed part and covers the window, and the convex strip extends into the hollow area of the skeleton through the window.

[0010] Furthermore, the top surface of the frame is connected to the bottom surface of the internal fixing portion.

[0011] Furthermore, the skeleton includes a lower connecting part, an elevated part and an upper connecting part connected in sequence, the edge of the lower connecting part is bent and extended upward to form the elevated part, the top end of the elevated part is bent and extended to form an upper connecting part parallel to the lower connecting part, the bottom surface of the lower connecting part is connected to the voice coil, and the top surface of the upper connecting part is connected to the diaphragm assembly.

[0012] Furthermore, the skeleton is made of metal or plastic.

[0013] Furthermore, the dome is made of metal or carbon fiber.

[0014] Furthermore, the convex strip is a hollow shell structure.

[0015] Furthermore, the width of the air flow channel formed between the two ends of the convex strip and the frame is consistent.

[0016] Furthermore, two adjacent voice coils are bonded to each other.

[0017] In order to solve the above technical problems, the present invention also adopts the following technical solution: the sound-emitting unit includes the above-mentioned vibration component.

[0018] The beneficial effects of the present invention are that the cooperation between the skeleton and the dome in the vibration assembly can connect multiple voice coils at the same time, avoiding the use of multiple skeleton structures, reducing the components of the vibration assembly, simplifying the structure of the vibration assembly, thereby facilitating the assembly of the vibration assembly and helping to control the manufacturing cost of the vibration assembly. Moreover, the convex strips on the dome are not arranged in contact with the skeleton to form an air flow channel, so that the air in adjacent voice coils can interact through the air flow channel, thereby improving the performance of the sound unit. In addition, the existence of the air flow channel can also reduce the overall weight of the vibration assembly and further improve the performance of the sound unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the vibration assembly of the first embodiment of the present invention;

[0020] Figure 2 This is a schematic structural diagram of a portion of the structure of a vibration assembly according to the first embodiment of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the spherical top in the vibration assembly of the first embodiment of the present invention.

[0022] Description of labels:

[0023] 1. Diaphragm assembly; 11. Sound diaphragm; 111. Inner fixing portion; 112. Folding ring portion; 113. Outer fixing portion; 12. Dome; 121. Raised strip;

[0024] 2. Frame; 21. Lower connecting part; 22. Elevated part; 23. Upper connecting part;

[0025] 3. Voice coil;

[0026] 4. Air flow channel. DETAILED DESCRIPTION

[0027] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0028] Please refer to Figures 1 to 3 , vibration components, including:

[0029] A diaphragm assembly 1 includes a diaphragm 11 and a dome 12 disposed on the diaphragm 11, wherein the dome 12 has a plurality of downwardly protruding ridges 121;

[0030] The skeleton 2 is in the shape of a ring frame and is connected to the diaphragm assembly 1. The ridges 121 are located in the hollow area of the skeleton 2. The bottom surface of the skeleton 2 is coplanar with the bottom surface of the ridges 121. An air flow channel 4 is formed between the skeleton 2 and the ridges 121.

[0031] A plurality of voice coils 3 are provided, and the top surfaces of the voice coils 3 are connected to the bottom surface of the frame 2 and the bottom surface of the protruding strip 121 .

[0032] From the above description, it can be seen that the beneficial effect of the present invention is that the cooperation between the skeleton 2 and the dome 12 in the vibration component can connect multiple voice coils 3 at the same time, avoiding the use of multiple skeleton 2 structures, reducing the components of the vibration component, and simplifying the structure of the vibration component, thereby facilitating the assembly of the vibration component and helping to control the manufacturing cost of the vibration component. Moreover, the ridges 121 on the dome 12 are not in contact with the skeleton 2 to form an air flow channel 4, so that the air in adjacent voice coils 3 can interact through the air flow channel 4, thereby improving the performance of the sound unit. In addition, the presence of the air flow channel 4 can also reduce the overall weight of the vibration component and further improve the performance of the sound unit.

[0033] Furthermore, the sound membrane 11 includes an inner fixing portion 111, a folding ring portion 112 and an outer fixing portion 113 connected in sequence from the inside to the outside, and a window is provided on the inner fixing portion 111. The ball top 12 is provided on the top surface of the inner fixing portion 111 and covers the window, and the convex strip 121 extends into the hollow area of the skeleton 2 through the window.

[0034] Furthermore, the top surface of the skeleton 2 is connected to the bottom surface of the internal fixing portion 111 .

[0035] Furthermore, the skeleton 2 includes a lower connecting part 21, an elevated part 22 and an upper connecting part 23 connected in sequence, the edge of the lower connecting part 21 is bent and extended upward to form the elevated part 22, the top of the elevated part 22 is bent and extended to form an upper connecting part 23 parallel to the lower connecting part 21, the bottom surface of the lower connecting part 21 is connected to the voice coil 3, and the top surface of the upper connecting part 23 is connected to the diaphragm assembly 1.

[0036] From the above description, it can be seen that the skeleton 2 allows more areas of the voice coil 3 to extend into the magnetic gap, thereby improving the performance of the sound unit.

[0037] Furthermore, the skeleton 2 is made of metal or plastic.

[0038] As can be seen from the above description, there are a variety of materials to choose from for manufacturing the frame 2.

[0039] Furthermore, the dome 12 is made of metal or carbon fiber.

[0040] As can be seen from the above description, there are a variety of materials available for the dome 12 .

[0041] Furthermore, the convex strip 121 is a hollow shell structure.

[0042] From the above description, it can be seen that the hollow shell-shaped ridges 121 can reduce the overall weight of the vibration assembly, thereby improving the high-frequency performance of the sound unit. At the same time, it can reduce the manufacturing consumables of the dome 12 and save the manufacturing cost of the dome 12.

[0043] Furthermore, the width of the air channel 4 formed between the two ends of the ridge 121 and the frame 2 is consistent.

[0044] As can be seen from the above description, the central arrangement of the ridge 121 can balance the center of gravity of the vibration component, thereby enabling the sound unit to have better acoustic performance.

[0045] Furthermore, two adjacent voice coils 3 are bonded to each other.

[0046] As can be seen from the above description, bonding two adjacent voice coils 3 to each other can improve the structural stability of the vibration assembly, reduce the risk of the voice coil 3 falling off, and improve the high-frequency split vibration phenomenon.

[0047] In order to solve the above technical problems, the present invention also adopts the following technical solution: the sound-emitting unit includes the above-mentioned vibration component.

[0048] From the above description, it can be seen that the sound unit has a simple structure and good acoustic performance.

[0049] Example 1

[0050] Please refer to Figures 1 to 3 , Embodiment 1 of the present invention is: a sound unit, including a basin frame and a vibration component and a magnetic circuit component respectively connected to the basin frame, the magnetic circuit component having a magnetic gap; the vibration component includes a diaphragm component 1, a skeleton 2 and a plurality of voice coils 3, the diaphragm component 1 includes a sound membrane 11 and a dome 12 provided on the sound membrane 11, the dome 12 has a plurality of downwardly protruding ridges 121; the skeleton 2 is in the shape of a ring frame, the skeleton 2 is connected to the diaphragm component 1, the ridges 121 are located in the hollow area of the skeleton 2, the bottom surface of the skeleton 2 is coplanar with the bottom surface of the ridges 121, and an air flow channel 4 is formed between the skeleton 2 and the ridges 121; the top surface of the voice coil 3 is connected to the bottom surface of the skeleton 2 and the bottom surface of the ridges 121.

[0051] The sound membrane 11 includes an inner fixing part 111, a folding ring part 112 and an outer fixing part 113 which are connected in sequence from the inside to the outside. The inner fixing part 111 is provided with a window. The ball top 12 is provided on the top surface of the inner fixing part 111 and covers the window. The convex strip 121 extends into the hollow area of the skeleton 2 through the window. In this embodiment, the top surface of the skeleton 2 is connected to the bottom surface of the inner fixing part 111. In other embodiments, the top surface of the skeleton 2 can also be connected to the ball top 12.

[0052] The skeleton 2 includes a lower connecting portion 21, an elevated portion 22, and an upper connecting portion 23, which are sequentially connected. The edge of the lower connecting portion 21 bends upward and extends to form the elevated portion 22. The top of the elevated portion 22 bends and extends to form the upper connecting portion 23, which is parallel to the lower connecting portion 21. The bottom surface of the lower connecting portion 21 is connected to the voice coil 3, and the top surface of the upper connecting portion 23 is connected to the diaphragm assembly 1. In this embodiment, the lower connecting portion 21 is ring-shaped. The outer edge of the lower connecting portion 21 bends upward and extends to form the elevated portion 22. The top of the elevated portion 22 bends outward and extends to form the upper connecting portion 23.

[0053] The skeleton 2 is made of metal or plastic; the dome 12 is made of metal or carbon fiber.

[0054] As a preferred embodiment, the convex strips 121 are hollow shell-like structures. When the material of the dome 12 is metal, the convex strips 121 can be formed by stamping and stretching.

[0055] The width of the air flow channel 4 formed between the two ends of the convex strip 121 and the frame 2 is consistent, that is, the distances between the two ends of the convex strip 121 and the frame 2 are equal.

[0056] In this embodiment, the two adjacent voice coils 3 are bonded to each other. The two adjacent voice coils 3 can be connected by glue, double-sided tape, or the self-adhesive layer on the surface of the wire wound around the voice coil 3.

[0057] In this embodiment, there are two voice coils 3 and one ridge 121, and the ridge 121 is bonded to two voice coils 3. In other embodiments, there may be three, four, or more voice coils 3.

[0058] In summary, the vibration assembly and sound unit provided by the present invention have a simple structure, high assembly efficiency, and excellent acoustic performance.

[0059] The above description is merely 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 description 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 vibration assembly, characterized in that include A diaphragm assembly, the diaphragm assembly comprising a diaphragm and a dome disposed on the diaphragm, the dome having a plurality of downwardly protruding ridges; a frame, the frame being in a ring frame shape, the frame being connected to the diaphragm assembly, the ridges being located in a hollow area of the frame, the bottom surface of the frame being coplanar with the bottom surface of the ridges, and an air flow channel being formed between the frame and the ridges; A plurality of voice coils are provided, wherein the top surfaces of the voice coils are connected to the bottom surface of the frame and the bottom surface of the convex strip.

2. The vibration assembly according to claim 1, characterized in that The sound membrane includes an inner fixed part, a folding ring part and an outer fixed part which are connected in sequence from the inside to the outside. A window is provided on the inner fixed part. The ball top is provided on the top surface of the inner fixed part and covers the window. The convex strip extends into the hollow area of the frame through the window.

3. The vibration assembly according to claim 2, characterized in that The top surface of the frame is connected to the bottom surface of the internal fixing part.

4. The vibration assembly according to claim 1, wherein The skeleton includes a lower connecting part, an elevated part and an upper connecting part connected in sequence, the edge of the lower connecting part is bent and extended upward to form the elevated part, the top end of the elevated part is bent and extended to form an upper connecting part parallel to the lower connecting part, the bottom surface of the lower connecting part is connected to the voice coil, and the top surface of the upper connecting part is connected to the diaphragm assembly.

5. The vibration assembly according to claim 1, wherein The material of the frame is metal or plastic.

6. The vibration assembly according to claim 1, characterized in that The material of the dome is metal or carbon fiber.

7. The vibration assembly according to claim 1, wherein The convex strip is a hollow shell structure.

8. The vibration assembly according to claim 1, wherein: The width of the air flow channel formed between the two ends of the convex strip and the frame is consistent.

9. The vibration assembly according to claim 1, wherein: The two adjacent voice coils are bonded to each other.

10. The sound generating unit is characterized in that: The vibration component comprises the vibration component according to any one of claims 1 to 9.

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